NIPPON SOKEN, INC. Patent applications |
Patent application number | Title | Published |
20150377416 | SYSTEM FOR CONTROLLING GAS SUPPLY UNIT - A system for controlling a gas supply unit supplying gas to a tank includes a pressure acquisition unit configured to acquire the pressure in the tank; and a controller configured to perform first filling for supplying the gas to the tank and to perform second filling, based on a flow rate determined based on a change in the pressure in the tank for a predetermined period of time during the first filling, by controlling the gas supply unit. The controller is configured to cause the gas supply unit to perform the first filling at a first flow rate in a case where the pressure in the tank prior to the first filling is a first pressure and perform the first filling at a second flow rate exceeding the first flow rate in a case where the pressure is a second pressure exceeding the first pressure. | 12-31-2015 |
20150369678 | TORQUE SENSOR AND MANUFACTURING METHOD THEREFOR - A torque sensor includes: a base portion fixed to a metal shaft having a rod shape as a measurement object of strain; a strain detection element of an surface acoustic wave type which is arranged in the base portion, and detects the strain of the metal shaft ( | 12-24-2015 |
20150199817 | POSITION DETECTION DEVICE AND POSITION DETECTION PROGRAM - A position detection device obtains image coordinate groups representing a coordinate of a target object in each acquired image having first and second acquired image groups. The first acquired image group has acquired images obtained at an image acquiring timing in a reference period. The second acquired image group has acquired images obtained at an image acquiring timing in the reference period, which is delayed from the image acquiring timing of the first acquired image group by an asynchronous time. The device performs a Fourier transformation of each of a first locus and a second locus, and calculates a first frequency waveform based on the first locus and a second frequency waveform based on the second locus. The device calculates a position of the target object based on a relationship in which the frequency waveforms are delayed relative to each other by a phase corresponding to the asynchronous time. | 07-16-2015 |
20150120085 | SMART SYSTEM - In a smart system, an onboard system transmits a request signal. A portable device receives the request signal. An LF demodulation portion demodulates the request signal to acquire request data and returns an answer signal based on acquisition of the request data. The onboard system receives the answer signal and performs smart drive based on reception of the answer signal. The onboard system also transmits a specified counter-RA signal. A switching circuit of the portable device outputs the received counter-RA signal to a modulation portion while bypassing the LF demodulation portion. The modulation portion performs RF modulation using the counter-RA signal to acquire a counter-RA modulation signal and transmits the counter-RA modulation signal. When receiving the counter-RA modulation signal, the onboard system determines whether to allow or disallow the smart drive based on delay time of timing to receive the counter-RA modulation signal with reference to timing to transmit the counter-RA signal. This enables to suppress variations in the transmission/reception delay time inherent in the smart system. | 04-30-2015 |
20140352414 | MISFIRE DETECTION SYSTEM OF INTERNAL COMBUSTION ENGINE - When ignition is retarded in an internal combustion engine, an engine misfire detection system calculates a difference between combustion-time engine torque produced when combustion takes place in the engine, and expansion torque corresponding to non-combustion-time engine torque produced when the engine rotates without causing combustion, at intervals of a predetermined crank angle, calculates a shift amount with which a total value of the differences within a misfire determination period is maximized, and shifts the misfire determination period by the shift amount. | 12-04-2014 |
20140347767 | POWER CONVERTER WITH SWITCHING ELEMENT - In a power converter, a driver that drives, according to a control signal, a switching element of a switch circuit for converting input power to output power. The control signal represents how to drive the switching element. A controller outputs the control signal to the driver for controlling the driver. A measuring unit measures a value of input power input to the switch circuit. A protection determining unit determines, based on the measured value of the input power, whether there is a need to protect the power converter. The protection determining unit outputs a stop control signal to at least one of the driver and the controller based on a result of the determination of whether there is a need to protect the power converter. The stop control signal represents whether to forcibly stop drive of the switching element. | 11-27-2014 |
20140314605 | VALVE APPARATUS AND HIGH PRESSURE PUMP HAVING THE SAME - A common seat portion includes discharge passages that communicate between a first valve chamber and a second valve chamber when a discharge valve member is lifted away from the common seat portion. The common seat portion also includes a relief passage that extends substantially parallel to the discharge passages and communicates between the first valve chamber and the second valve chamber when a relief valve member is lifted away from the common seat portion. | 10-23-2014 |
20140297171 | VEHICLE-INSTALLATION INTERSECTION JUDGMENT APPARATUS AND PROGRAM - A vehicle-installation intersection judgement apparatus determines whether a target object such as a pedestrian is located ahead and to one side of the vehicle, and if so, judges whether the object is moving laterally to intersect with the advancement of the vehicle. Successive amounts of lateral displacement of the object are periodically derived, each amount is compared with a displacement threshold, a count is made of the number of times that the displacement threshold is exceeded, and the count is compared with a predetermined count threshold. The judgement concerning the target object is made based upon whether the count threshold is attained. | 10-02-2014 |
20140297170 | DRIVING SUPPORT SYSTEM - A driving support system detects a position of an object ahead of an own vehicle as well as predicts a course of the own vehicle. Then, a collision probability between the own vehicle and the object is determined based on the predicted course and the position of the object, and performs the driving support for avoiding collision when the collision probability is high. Further, the driving support to system measures a curvature of a target road, and when a change in the curvature is small and an accurate course prediction is possible, a determination sensitivity of the collision probability is set high so that the driving support is easy to start, otherwise the determination sensitivity of the collision probability is set low so that the driving support is difficult to start. | 10-02-2014 |
20140297134 | ON-BOARD APPARATUS - An on-board apparatus includes a measuring unit, a filtering unit, a predicting unit, an executing unit, a detecting unit, and an adjusting unit. The measuring unit periodically measures a state of an own vehicle. The filtering unit performs a low-pass filter process on measurement results from the measuring unit. The predicting unit predicts behavior of the own vehicle based on the measurement results on which the low-pass filter process has been performed. The executing unit performs processes based on the behavior of the own vehicle predicted by the predicting unit. The detecting unit detects a traveling environment of the own vehicle. The adjusting unit adjusts a time constant for the low-pass filter process based on the traveling environment detected by the detecting unit. | 10-02-2014 |
20140295302 | FUEL CELL MONITORING DEVICE - In a fuel cell monitoring device, a gas-diffusion resistance calculation section calculates a gas-diffusion resistance R | 10-02-2014 |
20140241924 | ELECTROMAGNETIC VALVE AND HIGH PRESSURE PUMP USING THE SAME - An electromagnetic body has a movable core reciprocatably movable within a movable core chamber. The movable core has through holes and a fitting hole that pass through the movable core in a direction of movement of the movable core. A stator core facing the movable core defines the movable core chamber together with the electromagnetic body. A valve stem is fixed into the fitting hole and has a fluid chamber recessed from a first end surface facing the stator core. Air bubbles generated in a gap can be guided into the fluid chamber and collapse by flow of the fuel flowing into the fluid chamber from the through holes through the gap. | 08-28-2014 |
20140233282 | NOISE FILTER - A noise filter is assembled to an electric power conversion device and has a metal housing casing and two capacitors connected to an external terminal of the device through which an electric power conversion circuit is connected to an external device. The two capacitors, the housing casing and the external terminal make a current loop. A magnetic flux of an alternating magnetic field generated in a part of the electric power conversion circuit penetrates in a first area and a second area formed in the current loop. A first induced noise current is induced in the current loop when the magnetic flux of the generated magnetic field penetrates in the first area. A second induced noise current is induced in the current loop when the magnetic flux penetrates in the second area so that the first induced noise current flows in a reverse direction to the second induced noise current. | 08-21-2014 |
20140233281 | POWER CONVERTER WITH NOISE-CURRENT REDUCTION CAPACITOR - In a power converter, a housing is grounded. A power converter circuit is installed in the housing and configured to perform power conversion of input power into output power. An external terminal is electrically connected to the power converter circuit for connection of an external device to the power converter circuit. A first capacitor has first and second electrodes. The first electrode of the first capacitor is connected to the external terminal, and the second electrode thereof is connected to the housing. A second capacitor has first and second electrodes. The first electrode of the second capacitor is connected to the external terminal, and the second electrode thereof is connected to the housing. The first capacitor, the external terminal, the second capacitor, and the housing is arranged to provide a conductive loop. | 08-21-2014 |
20140211014 | BOUNDARY LINE RECOGNITION APPARATUS - In a boundary line recognition apparatus, a boundary line candidate extracting part extracts boundary line candidates from image data obtained by an on-vehicle camera based on known image processing such as pattern matching and Hough transform. One or more kinds of boundary line feature calculating parts calculate one or more likelihoods of each boundary line candidate. The likelihood indicates a degree of probability to be the boundary line. A boundary line feature combining means multiplies the likelihoods of each boundary line candidate and outputs a combined likelihood. A boundary line candidate selecting part selects the boundary line candidate having a maximum likelihood as the boundary line. The boundary line feature calculating part further calculates the likelihood of the boundary line candidate using a dispersion of brightness and an internal edge amount, and changes the likelihood based on an additional likelihood obtained by a driving lane surface feature extracting part. | 07-31-2014 |
20140198538 | POWER CONVERTER WITH CURRENT FEEDBACK LOOP - In a power converter, a driver drives a switching element using a manipulated variable therefor to convert input power into output power. A first measuring unit measures a value of a first electric parameter depending on the input power. A first determiner determines, from the measured value of the first electric parameter, a first feedback controlled variable. A second measuring unit measures a value of a second electric parameter indicative of the output power, and a calculator calculates, based on the measured value of the second electric parameter and a command value for the second electric parameter, a second feedback controlled variable. A selector selects, based on the measured value of the first electric parameter, one of the first feedback controlled variable and the second feedback controlled variable. A second determiner determines the manipulated variable using the selected one of the first and second feedback controlled variables. | 07-17-2014 |
20140198537 | POWER CONVERSION APPARATUS - A power conversion apparatus includes a switch circuit which activates switching elements on the basis of a control signal, a feedback means which performs feedback control, a signal output means which outputs the control signal on the basis of a control variable of the feedback control, and a mode switching means which controls switching operation of the switch circuit by switching an operation mode between a normal mode and an intermittent mode in which the number of operations is less than that in the normal mode. The mode switching means changes timing of switching from the normal mode to the intermittent mode, on the basis of either or both of a first detection value which is an input value inputted to the switch circuit and a second detection value which is an output value outputted from the switch circuit. | 07-17-2014 |
20140197913 | POWER SUPPLY APPARATUS - A power supply apparatus includes a magnetic component having a coil section, a conductive case body housing the magnetic component and having an opening plane facing an axial direction of the coil section, a case lid closing the opening plane, and conductive parts electrically connecting the case body and the case lid to each other at the opening plane. The conductive parts are provided so as to satisfy a positional relationship that at least one of the conductive parts is disposed at an intersection point at which a straight line making an angle within a range of 45±15 degrees with a perpendicular line drawn from a center of the coil section to a closest one of the side plate portions of the case body to the center intersects with the closest one of side plate portions when viewed from the axial direction. | 07-17-2014 |
20140178236 | ROTARY PUMP AND BRAKE DEVICE HAVING THE SAME - A rotary pump includes a first side plate and a second side plate between which an outer rotor and an inner rotor are arranged. The second side plate has a concave portion on a surface adjacent to a maximum gap portion relative to a drive shaft. The concave portion is located in an outer teeth passing section which is defined between a line on which a teeth tip of an outer teeth part of the inner rotor passes in response to rotation of the inner rotor and a line on which a teeth bottom of the outer teeth part of the inner rotor passes in response to rotation of the inner rotor. The concave portion communicates with one of a plurality of gap portions while the inner rotor is rotated. | 06-26-2014 |
20140175868 | ELECTRIC POWER SUPPLY APPARATUS, CONTACTLESS ELECTRICITY TRANSMISSION APPARATUS, VEHICLE, AND CONTACTLESS ELECTRIC POWER TRANSFER SYSTEM - An electric power supply apparatus includes a choke coil, a switching element, a resonance circuit and a compensation circuit. The parasitic capacitance of the switching element is larger than a predetermined capacitance needed for realizing class E zero-voltage switching. The compensation circuit is connected in parallel with the switching element. The compensation circuit includes a coil and a capacitor, and has inductive impedance. | 06-26-2014 |
20140152084 | ROTATING PUMP AND BRAKE SYSTEM USING SAME - A rotating pump includes an outer rotor and an inner rotor. The inner and outer rotors are rotated by a drive shaft between a first side plate and a second side plate to pump put fluid. The first side plate faces the inner and outer rotors and has a first surface and a second surface. The first surface is inclined to an axial direction of the drive shaft to create a wedge-shaped gap between itself and one of the inner and outer rotor. The second surface extends more parallel to a direction perpendicular to the axis direction of the drive shaft than the first surface does. The geometric configurations of the first and second surfaces serve to minimize the leakage of the brake fluid without sacrificing a reduction in resistance to sliding motion of the inner rotor and the outer rotor on the second side plate. | 06-05-2014 |
20140138063 | COOLING FIN STRUCTURE - A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins ( | 05-22-2014 |
20140131365 | HIGH PRESSURE GAS TANK AND MANUFACTURING METHOD OF HIGH PRESSURE GAS TANK - This high pressure gas tank is a tank in which a fiber-reinforced resin layer is formed around an outer periphery of a tank liner by fibers impregnated with thermosetting resin being wound around the outer periphery of the tank liner. The fiber-reinforced resin layer includes an inside layer formed on the tank liner side, and an outside layer formed on an outer periphery of the inside layer. The inside layer is formed as a dense layer, while the outside layer is formed as a layer that is less dense than the inside layer by forming a larger number of airspaces in the outside layer than there are in the inside layer. | 05-15-2014 |
20140119081 | POWER CONVERSION APPARATUS - A power conversion apparatus is applied to an assembled battery which is a series connection of a plurality of unit batteries, two or more and at least part of the plurality of unit batteries being selection objects. The apparatus includes a voltage output section which outputs voltage, opening and closing sections each of which is provided on each current path connecting each of the selection objects with the voltage output section and which is opened and closed to open and close the current path, and an operation section which operates the opening and closing sections so that the voltage output section outputs AC voltage. | 05-01-2014 |
20140117748 | ROTARY PUMP AND BRAKING SYSTEM HAVING THE SAME - A rotary pump has a linear groove formed on an end surface of a second side plate of an outer rotor. Thereby, it becomes possible to generate a force for pushing back the outer rotor to a sealing member side, and thus it becomes possible to reduce load applied to the second side plate. As a result, contact resistance between the outer rotor and the second side plate becomes smaller, and smoother pumping operation becomes possible. Further, since the force for pushing back the outer rotor to the first sealing member side is generated in the linear groove, it is possible to reduce an amount of decrease in a contacting area with the outer rotor and the second side plate, thereby reducing an amount of wear of the outer rotor and the second side plate. | 05-01-2014 |
20140116394 | FUEL SUPPLY SYSTEM AND FUEL SUPPLY METHOD FOR INTERNAL COMBUSTION ENGINE - A fuel supply system for an internal combustion engine includes a heat exchanger that has a heat exchanging wall between a liquefied fuel passage and an engine coolant passage. Heated and vaporized fuel flowing out from the liquefied fuel passage of the heat exchanger is supplied to the internal combustion engine. A flow rate of liquefied fuel supplied to the liquefied fuel passage of the heat exchanger is set. A flow rate of engine coolant supplied to the engine coolant passage of the heat exchanger is determined on the basis of a temperature of the engine coolant supplied to the engine coolant passage of the heat exchanger such that nucleate boiling or transition boiling of the liquefied fuel in the set flow rate occurs near a boundary between nucleate boiling and transition boiling in the liquefied fuel passage. | 05-01-2014 |
20140095054 | FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE - At the time of shifting a fuel property value associated with a first imaginary passage cell as a fuel property value associated with a second imaginary passage cell located on the downstream side thereof, the fuel property value associated with the second imaginary passage cell is corrected in a controller by computing a difference between the fuel property value associated with the first imaginary passage cell and the fuel property value associated with the second imaginary passage cell and multiplying the difference by a correction coefficient. A stoichiometric air/fuel ratio is computed in the controller based on the fuel property value, which is associated with a last one of the imaginary passage cells. Fuel injection of an injector is controlled by the controller based on a computed injection quantity of fuel, which is computed based on the stoichiometric air/fuel ratio. | 04-03-2014 |
20140062808 | VEHICULAR ANTENNA APPARATUS - A vehicular antenna apparatus includes a substrate, a circuit portion, a case, and a heat transfer path. The substrate has an antenna portion. The circuit portion is mounted on the substrate and configures at least a part of a wireless communication circuit electrically coupled with the antenna portion. The case is made of resin material and configures a protruded portion of an outer surface of a vehicle. The substrate and the circuit portion are arranged in the case. The heat transfer path is arranged between the circuit portion and the case, and has a thermal conductivity higher than air. The circuit portion is electrically coupled with the antenna portion by a solid phase diffusion bonding. | 03-06-2014 |
20130328577 | CAPACITANCE-TYPE OCCUPANT DETECTION SENSOR - A capacitance-type occupant detection sensor of the present disclosure detects a vehicle occupant on a seat based on a difference of capacitance between a sensor body and a reference electric potential. The sensor body includes a main electrode and a parallel electrode. The parallel electrode is disposed in parallel with the main electrode with a gap interposed therebetween and has a detection voltage applied thereto. The main electrode and the parallel electrode each have a base material, a first electrode member disposed on the base material, and a second electrode member disposed on the base material to cover the first electrode member, where the second electrode member has an electric conductivity that is lower than the first electrode member. The first electrode member is disposed on a lateral perimeter of the second electrode member to surround a center of the second electrode member. | 12-12-2013 |
20130319038 | VEHICLE COOLING SYSTEM - A cooling system includes a compressor that circulates refrigerant; a condenser that condenses the refrigerant; an expansion valve that reduces a pressure of the refrigerant that has been condensed by the condenser; an evaporator that vaporizes the refrigerant that has been reduced in pressure by the expansion valve; a refrigerant passage through which the refrigerant flows from an outlet of the condenser toward an inlet of the expansion valve, and that includes a passage forming portion that forms part of the refrigerant passage; a second passage that is connected in parallel with the passage forming portion; a cooling portion that is provided in the second passage and cools a heat source using the refrigerant; and an expansion valve that is arranged upstream of the cooling portion in the second passage. | 12-05-2013 |
20130306033 | RELIEF VALVE FOR HIGH-PRESSURE FUEL PUMP - A relief valve includes a valving element, a movable holder, a housing having a guide hole and a valve seat, and a resilient member. The valving element is lifted from its seated state, in which the valving element is engaged with the valve seat, toward a pressurizing chamber in a lift period. The lift period includes a lift first period and a lift second period. An amount of the lift of the valving element reaches a set distance in the lift first period. The lift second period is after the amount of the lift of the valving element has reached the set distance. The movable holder slides inside the guide hole both in the lift first period and in the lift second period. A minimum clearance area between the movable holder and the guide hole is larger in the lift second period than in the lift first period. | 11-21-2013 |
20130298591 | COOLING APPARATUS - A cooling apparatus that cools an HV appliance heat source includes: a compressor for circulating a coolant; a condenser for condensing the coolant; an expansion valve that decompresses the coolant that has been condensed by the condenser; an evaporator for evaporating the coolant that has been decompressed by the expansion valve; and a coolant passageway through which the coolant that moves from an outlet of the condenser toward an inlet of the expansion valve flows. The coolant passageway includes a passageway-forming portion that forms a portion of the coolant passageway. The cooling apparatus further includes a coolant passageway that is disposed in parallel with the passageway-forming portion, and that circulates the coolant via the HV appliance heat source. | 11-14-2013 |
20130226433 | INTER-VEHICLE DISTANCE CONTROL DEVICE - An inter-vehicle distance control device is provided. A typical embodiment of the device comprises, i) an inter-vehicle distance detecting means for detecting an inter-vehicle distance between the own vehicle and the preceding vehicle traveling in front of the own vehicle, ii) a laterally adjacent vehicle detecting means for detecting another vehicle present beside the own vehicle, iii) a cut-in detecting means for judging whether or not a cut-in by the other vehicle detected by the laterally adjacent vehicle detecting means is likely to occur, before the other vehicle cuts in between the own vehicle and the preceding vehicle, iv) an inter-vehicle distance adjusting means for performing inter-vehicle distance extension adjustment to increase the inter-vehicle distance when the cut-in detecting means judges that a cut-in is likely to occur, and v) an inter-vehicle distance control means for controlling the inter-vehicle distance based on information from the inter-vehicle distance adjusting means. | 08-29-2013 |
20130226406 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus capable of automatic steering control while reducing discomfort or stress on vehicle occupants. In the apparatus, a lane detection unit detects a lane in which the vehicle is traveling. An offset setting unit sets an offset within the lane suitable for making a driver feel less stressed. An occupant detection unit detects the presence of a designated occupant of a seat opposite a driver's seat. An offset adjustment unit, when the designated occupant is detected, adjusts the offset set by the offset setting unit to be decreased. A vehicle-path estimation unit estimates a vehicle path in the lane such that the vehicle can travel along the vehicle path from a current lateral position to a target lateral position of the vehicle. An automatic steering control unit automatically controls steering so that the vehicle travels along the estimated vehicle. | 08-29-2013 |
20130222089 | SOLENOID DEVICE - A solenoid device includes: a first electromagnetic coil; first and second plungers movable according to energization to the first electromagnetic coil; first and second fixed cores facing the first and second plungers, respectively; and a yoke. When the first electromagnetic coil is not energized, first and second gaps are formed between the first and second plungers and the first and second fixed cores, respectively. When the first electromagnetic coil is energized, the magnetic flux flows in a first magnetic circuit, provided by the first plunger, the first fixed core and the yoke, via the first gap, and a second magnetic circuit, provided by the first and second plungers, the first and second fixed cores and the yoke, via the first and second gaps, so that the first and second plungers are attracted toward the first and second fixed cores. | 08-29-2013 |
20130207750 | SOLENOID DEVICE AND ELECTROMAGNETIC RELAY - A solenoid device includes: at least one electromagnetic coil that generates a magnetic flux when the electromagnetic coil is energized; a yoke made of soft magnetic material, in which the magnetic flux flows; and a plurality of plungers, each of which includes at least a part made of soft magnetic material, and reciprocates when the electromagnetic coil is switched between energization and interruption of energization. The number of the plurality of plungers is larger than the number of the electromagnetic coil. The plurality of plungers reciprocate independently from each other. | 08-15-2013 |
20130206091 | LASER IGNITION APPARATUS - In a laser ignition apparatus, a focusing optical element is configured to focus a pulsed laser light to a predetermined focal point in a combustion chamber of an engine. An optical window member is arranged on the combustion chamber side of the focusing optical element so as to separate the focusing optical element from the combustion chamber. A catoptric-light focal point, at which a catoptric light is to be focused, is positioned on the anti-combustion chamber side of a combustion chamber-side end surface of the optical window member. The catoptric light results from the reflection of the pulsed laser light by a pseudo mirror that is formed by the optical window member when the combustion chamber-side end surface thereof is fouled with contaminants. Further, the catoptric-light focal point falls in a region where no solid material forming either the focusing optical element or the optical window member exists. | 08-15-2013 |
20130199478 | VALVE TIMING CONTROLLER - A valve timing controller includes a lock mechanism that locks a rotation phase at a main lock phase when an internal combustion engine is started with an ambient temperature more than or equal to a preset temperature. The main lock phase represents a rotation phase set for closing an intake valve at a later timing later than a timing when a piston reaches a bottom dead center of a cylinder in the internal combustion engine. The lock mechanism locks the rotation phase at a sub lock phase representing a rotation phase advanced rather than the main lock phase in the internal combustion engine when the internal combustion engine is started with an ambient temperature lower than the present temperature. | 08-08-2013 |
20130197758 | VEHICLE AUTOMATIC STEERING CONTROL APPARATUS - A vehicle control apparatus that for automatic steering control that reduces occupant discomfort and stress is provided. A lane width of a subject lane and a current in-lane ratio are detected. If an off-lane obstacle which may place stress on the occupant is present within a prescribed area, a relative position between each off-lane obstacle and the vehicle is determined. A target in-lane ratio is determined based on the relative position. Specifically, when the off-lane obstacles are present on both the left and right sides of the subject lane, the target in-lane ratio is such that lateral distances to both off-lane obstacles are equal. When the off-lane obstacle is present on only one of either the left or right of the subject lane, the target in-lane ratio is set such that a lateral position away from the off-lane obstacle by a lateral distance set in advance is the target lateral position. | 08-01-2013 |
20130196610 | WIRELESS COMMUNICATION SYSTEM - A first communication apparatus and a second communication apparatus are capable of wireless communication with each other. The first communication apparatus has a normal operation mode and a tuning mode that differs from the normal operation mode and allows a variable matching portion to adjust a matching state. When the tuning mode is selected, the first transmission portion transmits an operation mode transition request signal to the second communication apparatus. A first reception portion receives a tuning reference signal transmitted from the second communication apparatus in response to the operation mode transition request signal. A reception signal intensity measurement portion measures a reception signal intensity of the received tuning reference signal. The variable matching portion adjusts a matching state based on the measured reception signal intensity of the tuning reference signal. | 08-01-2013 |
20130186362 | LASER IGNITION SYSTEM - A laser ignition system that is mounted on an internal combustion engine and that condenses a laser beam oscillated from a laser oscillator into an engine combustion chamber by using a condenser lens to generate a flame kernel with high energy and to perform ignition includes at least a highly-refractive optical element that refracts optical axes OPX | 07-25-2013 |
20130168581 | PRESSURE CONTROL APPARATUS - A first resilient member generates a resilient force to urge a valve portion in a valve-closing direction. A second resilient member generates a resilient force against the resilient force of the first resilient member. The resilient force of the first resilient member and the resilient force of the second resilient member are set to be balanced with each other when the valve portion is placed in a lift position that is between a full-closing position of the valve portion, in which the valve portion is seated against a valve seat to fully close a fluid passage, and a full-opening position of the valve portion, in which the valve portion is fully lifted away from the valve seat to fully open the fluid passage. | 07-04-2013 |
20130152702 | TORQUE SENSOR APPARATUS - A torsion bar has first and second end portions that are fixed to input and output shafts, respectively, to coaxially connect between the input and output shafts. A multipolar magnet is fixed to the input shaft. First and second magnetic yokes are fixed to the output shaft. Magnetic sensors are held between magnetic flux collecting portions of first and second magnetic flux collecting rings, which are magnetically coupled to the first and second magnetic yokes, respectively. In each of the magnetic flux collecting portion, a connecting section and a mounting section are configured such that a width of the connecting section is smaller than a width of the mounting section. | 06-20-2013 |
20130127610 | INFORMATION PROVIDING APPARATUS - An information providing apparatus includes a tactile information provider and a controller. The tactile information provider is arranged within a rim portion of a steering wheel of a vehicle and provides a tactile sense to a driver. The controller controls the tactile information provider to provide support information to the driver. The support information is defined as information that supports a driving of the vehicle. The tactile information provider includes a trench arranged in a circumferential direction of the rim portion, a ring-shaped ring portion, and a driving portion. The ring portion is rotatably arranged in the trench and has an exposed surface such that the exposed surface contacts with at least one hand of the driver. The driving portion is controlled by the controller to drive the ring potion rotate in the circumferential direction to provide the support information to the driver. | 05-23-2013 |
20130118458 | FUEL FEED SYSTEM - A fuel feed system which causes liquid fuel to evaporate so as to feed gaseous fuel, provided with an evaporator which includes a heater which heats the liquid fuel to vaporize it and an electric heater which adjusts the temperature of the heater. The heater has a heat conduction surface which supplies heat to the liquid fuel. A difference between the temperature of the heat conduction surface of the heater and the boiling point of the fuel at the evaporator is used as the basis to change the temperature of the heater and adjust the heat flux at the heat conduction surface. | 05-16-2013 |
20130112164 | LASER IGNITION APPARATUS - A laser ignition apparatus includes a housing that has a male-threaded portion for fixing the housing and a hexagonal portion for tightening the male-threaded portion. Between a combustion chamber-side end of the male-threaded portion and an anti-combustion chamber-side end of the hexagonal portion, there is defined a non-optical element arrangement region in which none of an introducing optical element, an enlarging optical element and a focusing optical element of the apparatus is arranged. At one of a combustion chamber-side end and an anti-combustion chamber-side end of the non-optical element arrangement region, there is formed a reference surface that extends perpendicular to an axial direction of the housing. One of the introducing optical element, the enlarging optical element and the focusing optical element is received in the housing in such a manner as to be elastically pressed against the reference surface from outside of the non-optical element arrangement region. | 05-09-2013 |
20130099849 | RINGING SUPPRESSION CIRCUIT - A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and a potential applied to a control terminal of the low side switch. | 04-25-2013 |
20130099747 | CHARGE/DISCHARGE SYSTEM FOR BATTERY PACK - A charge/discharge system is provided to shuttle electric energy in a battery pack made up of battery cells connected in series. The charge/discharge system includes an electric energy storage, a switch, and a charge/discharge controller. The charge/discharge controller selectively places the switch in a charging mode to charge electric energy from one or a selected number of ones of the battery cells to one or a selected number of other ones of the battery cells to minimize a variation in state of charge among the battery cells. | 04-25-2013 |
20130093394 | CHARGING DEVICE FOR ELECTROMOTIVE VEHICLE - An AC-DC converter converts an alternating-current voltage, supplied from an external power supply, to a direct-current voltage higher than a peak voltage of the alternating-current voltage, and outputs the direct-current voltage to a first power supply line. In a normal control mode, a DC-DC converter steps down a voltage of the power supply line through on/off control over a switching element to charge a main battery. On the other hand, in an upper arm ON control mode, the DC-DC converter charge the main battery while the switching element is kept in an on state. On the basis of a state of external charging, a control device applies the upper arm ON control mode when a condition that upper arm ON control is applicable is satisfied, and applies the normal control mode when the condition is not satisfied. | 04-18-2013 |
20130076188 | ELECTRIC ROTATING MACHINE - An electric rotating machine includes a rotor and a stator. The rotor has a plurality of pairs of magnetic poles. The stator includes a stator core and a stator coil that is comprised of a plurality of phase windings wound on the stator core. The stator core has, for each of the phase windings of the stator coil, n circumferentially-consecutive single-phase slots, in which only the phase winding is received, per magnetic pole of the rotor, where n is a natural number not less than 2. Each of the phase windings of the stator coil has first to kth sections that are sequentially arranged from one end to the other end of the phase winding, where k is a natural number not less than 2. The first section is received in different ones of the single-phase slots for the phase winding from the kth section. | 03-28-2013 |
20130069591 | BATTERY CHARGING APPARATUS FOR VEHICLE - A battery charger of a battery charging apparatus is disposed on an exterior case of an engine in such a manner that a generated heat is transferred therebetween. An ECU drives a cooling system when an engine temperature and temperature of the battery charger satisfy a predetermined cooling temperature condition. A cooling capacity for cooling the battery charger is improved by establishing a heat radiation passage to radiate a heat from the battery charger efficiently. | 03-21-2013 |
20130063239 | TRANSFORMER INCORPORATED IN ELECTRONIC CIRCUITS - A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils. | 03-14-2013 |
20130059226 | MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR GAS DIFFUSION LAYER OF FUEL CELL, AND FUEL CELL - According to a manufacturing method for a fuel cell, an insulating member having a plurality of communication holes therein is disposed on a side of a gas diffusion layer, which is formed by stacking a layer made of a carbon fiber and a water-repellent layer, where the water-repellent layer is provided, the gas diffusion layer and the insulating member are sandwiched by a pair of electrodes, and a pair of contact pressure plates are disposed on respective rear surfaces of the pair of electrodes so as to sandwich the pair of electrodes so that the gas diffusion layer is pressurized by the pair of contact pressure plates. When a voltage is applied to the pair of electrodes while maintaining the pressurized state, an electric current flows through a protrusion portion of a carbon fiber which comes in contact with the electrode on the water-repellent layer side via the communication holes of the insulating member, so that the protrusion portion of the carbon fiber is burned and removed by Joule heat. When it is detected that no electric current flows between the electrodes, application of a voltage to the pair of electrodes is stopped, and the pressure in the pressurized state is decreased to a normal pressure state. | 03-07-2013 |
20130038281 | COIL UNIT, NON-CONTACT POWER TRANSMISSION DEVICE, NON-CONTACT POWER RECEPTION DEVICE, NON-CONTACT POWER SUPPLY SYSTEM, AND VEHICLE - A coil unit performs at least one of transmission and reception of electric power using electromagnetic resonance between the coil unit and a primary resonance coil disposed to face the coil unit. The coil unit includes a secondary resonance coil that includes a plurality of coils, and that electromagnetically resonates with the primary resonance coil. A first coil among the plurality of coils is disposed in a manner such that a magnetic field generated by the first coil has a phase opposite to a phase of a magnetic field generated by at least one coil other than the first coil among the plurality of coils, with respect to a plane that faces the primary resonance coil. | 02-14-2013 |
20130015755 | SPARK PLUG DESIGNED TO ENSURE DESIRED DEGREE OF IGNITABILITY OF FUELAANM INOHARA; TakayukiAACI Okazaki-shiAACO JPAAGP INOHARA; Takayuki Okazaki-shi JPAANM OKABE; ShinichiAACI Aichi-kenAACO JPAAGP OKABE; Shinichi Aichi-ken JPAANM AOCHI; TakanobuAACI Nishio-shiAACO JPAAGP AOCHI; Takanobu Nishio-shi JPAANM IWAMI; AtsushiAACI Kariya-shiAACO JPAAGP IWAMI; Atsushi Kariya-shi JPAANM SHIBATA; MasamichiAACI Toyota-shiAACO JPAAGP SHIBATA; Masamichi Toyota-shi JP - A spark plug for an internal combustion engine is provided which is equipped with a tip protrusion disposed on a top of a hollow cylindrical housing of the spark plug. The spark plug also includes a center electrode retained in a porcelain insulator disposed inside the housing and a ground electrode is joined to the housing so as to form a spark gap. The tip protrusion serves to direct a flow of gas to be ignited by a spark produced in the spark gap and is shaped to have a radial width extending in a radial direction of the housing and a circumferential width extending in a circumferential direction of the cylindrical housing. The radial width is greater than the circumferential width. This enhances the efficiency in guiding the flow of gas toward the spark gap. | 01-17-2013 |
20130009671 | SWITCHING ELEMENT DRIVING DEVICE AND METHOD - A slew rate regulation circuit varies a slew rate of a waveform of a voltage outputted to a DC motor through a N-channel MOSFET. The slew rate regulation circuit lowers a peak level by dispersing frequency components of switching noise, which develops in a frequency range higher than a frequency range determined by a carrier frequency. | 01-10-2013 |
20130009650 | VOLTAGE DETECTOR, MALFUNCTION DETECTING DEVICE, CONTACTLESS POWER TRANSMITTING DEVICE, CONTACTLESS POWER RECEIVING DEVICE, AND VEHICLE - A voltage detector for detecting a voltage generated in a second resonant coil that is disposed to face a first resonant coil and that performs at least one of electric power transmission and electric power reception to and from the first resonant coil in a contactless manner by means of electromagnetic resonance includes: a first high-impedance element having one end connected to one end of the second resonant coil; a second high-impedance element having one end connected to the other end of the second resonant coil; a low-impedance element connected between the other end of the first high-impedance element and the other end of the second high-impedance element and having an impedance smaller than each of those of the first and second high-impedance elements; and an output terminal for outputting a signal associated with a voltage applied across the low-impedance element. | 01-10-2013 |
20120330511 | STEERING CONTROL SYSTEM - In a steering control system, an ECU calculates a basic transfer ratio in accordance with a steering angle detected by a steering angle sensor or a corrected transfer ratio by correcting the calculated basic transfer ratio in accordance with the position of a rack. The corrected transfer ratio decreases when the rack moves from a predetermined first position close to one end of a movable range, to the one end or from a predetermined second position close to the other end of the movable range, to the other end. The ECU determines either the basic transfer ratio or the corrected transfer ratio as the transfer ratio in accordance with the position of the rack. The ECU controls an actuator for a variable gear ratio system in accordance with the transfer ratio. | 12-27-2012 |
20120330510 | STEERING CONTROL SYSTEM - In a steering control system, an ECU calculates a basic assist torque in accordance with a steering torque detected by a torque sensor, and a corrected assist torque by correcting the calculated basic assist torque in accordance with the position of a rack by making corrections so that the basic assist torque decreases when the rack moves from a predetermined first position, which is close to a first end of a movable range, to the first end or from a predetermined second position, which is close to a second end of the movable range, to the second end. The ECU determines either the basic assist torque or the corrected assist torque as the assist torque in accordance with the position of the rack. The ECU controls the drive of an actuator in accordance with the determined assist torque. | 12-27-2012 |
20120314541 | OBJECT DETECTION APPARATUS - An object detection apparatus disposed in a moving body generates a transmission signal of multiple pulse sequences as a plurality of sequences of multiple pulses. A modulation signal of the transmission signal is generated by performing digital modulation on each of the multiple pulse sequences of the transmission signal according to a code sequence. A transmission wave based on the modulation signal is transmitted and a reflected wave of the transmission wave is received by the apparatus. The apparatus further detects a speed of the moving body to determine a length of the code sequence. The apparatus calculates a code correlation value between the modulation signal and a received signal, which is derived from the reflected wave, and performs pulse compression on the received signal based on the code correlation value to generate a pulse-compressed received signal. The apparatus detects an object based on the pulse-compressed received signal. | 12-13-2012 |
20120312261 | VARIABLE VALVE TIMING APPARATUS - A phase adjusting mechanism is engaged with a brake shaft, and adjusts a rotation phase between a crankshaft and a camshaft according to a braking torque acting on a rotor. The rotation phase is adjusted in a predetermined direction when the braking torque is increased. A torque input mechanism inputs a return torque into the phase adjusting mechanism to return the rotation phase in an opposite direction opposite from the predetermined direction. The torque input mechanism increases the return torque corresponding to the rotation phase as an environmental temperature of the variable valve timing apparatus is lowered. | 12-13-2012 |
20120309584 | POWER TRANSMISSION UNIT - After an engine starts, a rotation speed of the engine is fed back to a target rotation speed that is defined in response to requested power for the engine. In addition, by operating a gear ratio of a CVT, a rotation speed of an output side of a one-way bearing is fed back to the target rotation speed. | 12-06-2012 |
20120299794 | ANTENNA APPARATUS - A wireless communication module is arranged such that a radio frequency circuit board stands vertically on a first earth plate. The radio frequency circuit board includes first and second radio frequency transmission and reception circuits at both end portions, respectively. The radio frequency circuit board includes a second earth plate serving as a grounding electric potential of the radio frequency transmission and reception circuits. Feed lines from the radio frequency transmission and reception circuits are connected to the first earth plate, respectively. Ground lines of the feed from the radio frequency transmission and reception circuits, respectively, are connected to the second earth plate. Thus, vertical exciting currents flow at both end portions of the second earth plane, enabling transmission and reception of vertical polarization waves. | 11-29-2012 |
20120299458 | SPARK PLUG FOR INTERNAL-COMBUSTION ENGINES - A spark plug for internal-combustion engines includes a housing, an insulator, a center electrode, and an earth electrode. A gas guiding sections equipped with slopes that slope inwardly as they approach toward a tip side from a circumference surface of the housing and guide surfaces that are disposed on both sides in a circumferential direction of the slopes are formed in a tip part of the housing. The gas guiding sections are formed in the circumferential direction within a 90-degree range measured relative to the center of the earth joint section, which is a junction of the housing and the earth electrode, in the circumferential direction. When the spark plug is mounted to the engine, it is constituted so that the gas guiding sections are projected into a combustion chamber. | 11-29-2012 |
20120293302 | IN-VEHICLE APPARATUS CONTROL SYSTEM - An onboard apparatus control system is disclosed. The onboard apparatus control system includes a portable apparatus and an in-vehicle apparatus which controls an onboard apparatus according to position of the portable apparatus. From multiple transmitting antennae, the in-vehicle apparatus transmits pulse pattern signals with different transmission frequencies at an overlapping timing, so that the pulse pattern signals are radio waves whose intensities are changed stepwise according to different patterns. The portable apparatus receives the radio waves transmitted from the multiple transmitting antennae. The position of the portable apparatus with respect to the vehicle is determined based on a combined pattern of the received pulse pattern signals, which a receiving unit is to receive at location with respect to the vehicle. | 11-22-2012 |
20120291748 | FUEL INJECTION SYSTEM - A fuel injector is provided in a cylinder block of a spark-ignition direct injection engine. The fuel injector is arranged in such a manner that a fuel injection port is closed by a piston of the engine when the piston is positioned at a top dead center. The fuel injection port is opened when the piston is positioned at a specified position which is far from the top dead center by a specified distance. | 11-22-2012 |
20120285266 | TORQUE SENSOR - Two magnetic flux collecting rings are installed into a corresponding position axially located between two magnetic yokes. The magnetic flux collecting rings collect a magnetic flux from the magnetic yokes. The magnetic flux collecting rings at least partially overlap with the magnetic yokes in a view taken in the axial direction. | 11-15-2012 |
20120262881 | POWER SUPPLY DEVICE FOR VEHICLE - A power supply device includes a refrigeration cycle having a compressor, a motor, an inverter-integrated charger, a heat exchanger unit, and a controller having a determining unit. The inverter-integrated charger selectively controls operation of the motor using electrical power of a battery and charge of the battery with external power. The heat exchanger unit cools a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle. When the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as: a charger to perform the charge of the battery; or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining unit. | 10-18-2012 |
20120262394 | OPERATION INPUT DEVICE AND METHOD FOR CONTROLLING THE SAME - A touch operation unit has a manipulated surface accepting a touch operation. An operation detection unit detects a touch operation on the manipulated surface. A moving unit moves the touch operation unit. A movement control unit drives the moving unit to control a movement of the touch operation unit, when the operation detection unit detects a touch operation, to satisfy a predetermined stimulable condition enabling stimulation of a skin sensory receptor. The stimulable condition is a condition of a movement quantity of the touch operation unit and a moving speed of the touch operation unit or a condition of the movement quantity of the touch operation unit and an acceleration of the touch operation unit. | 10-18-2012 |
20120242552 | MULTI-BAND ANTENNA - A multi-band antenna includes two conductive wirings and unit circuits cascaded along the conductive wirings. Each unit circuit includes a communication unit, a first capacitor and a second inductor. The communication unit connects between the conductive wirings through a first inductor and a second capacitor connected in series with the first inductor. The first capacitor and the second inductor are inserted in at least one of the conductive wirings. The second inductor is connected in parallel with the first capacitor. Alternatively, the unit circuit includes a communication unit connecting between the conductive wirings through a first inductor, and a first capacitor inserted in at least one of the conductive wirings. The first inductor, the first capacitor, a third capacitor disposed between the conductive wirings, and a third inductor disposed on at least one of the conductive wirings satisfy a relationship expressed by the expression 2. | 09-27-2012 |
20120235852 | DRIVING ASSIST APPARATUS - A driving assist apparatus for a vehicle is disclosed. The driving assist apparatus includes a transmitter for transmitting a transmission wave, a receiver for receiving a reflected wave, an obstacle presence determination section for detecting a presence of an obstacle in the surrounding of the vehicle based on the reflected wave, a measurement section for measuring a frequency of phase delay and advance of the reflected wave with respect to a reference signal, and a detection section for detecting the obstacle having a specific relation with the vehicle based on the presence of the obstacle determined by the obstacle presence determination section and the frequency of delay and the frequency of advance measured by the measurement section. | 09-20-2012 |
20120235673 | STROKE AMOUNT DETECTING DEVICE - A stroke amount detecting device includes a magnetism detecting unit, a first magnetic field generating unit and a second magnetic field generating unit. A magnetic pole of the first generating unit and a magnetic pole of the second generating unit, which are opposed to each other, have different polarities. A distance between a gap end of the first generating unit and a gap end of the second generating unit, which are located on a farther side of a rectilinear axis, is smaller than a distance between an open end of the first generating unit and an open end of the second generating unit, which are located on a closer side of the rectilinear axis. The magnetism detecting unit detects a stroke amount of an object based on a magnetic flux generated between the open end of the first generating unit and the open end of the second generating unit. | 09-20-2012 |
20120229644 | EDGE POINT EXTRACTING APPARATUS AND LANE DETECTION APPARATUS - An edge point extracting apparatus is provided which includes an image obtaining unit which obtains a road surface image which is picked up from a road surface ahead of a vehicle and from which a plurality of color components are separately extracted a high luminance component selecting unit which extracts a pixel group including a plurality of pixels arranged in a line on the road surface image and selects a color component from the plurality of color components in the pixel group, the selected color component having the highest average luminance which is equal to or more than a predetermined threshold and an edge extracting unit which extracts an edge point in the pixel group by using a color component of the plurality of color components other than the color component selected by the high luminance component selecting unit. | 09-13-2012 |
20120216779 | FUEL SUPPLY DEVICE - A fuel supply device includes: an injector that injects and supplies fuel to an engine; a pressure accumulator communicating with a cylinder of the engine through a communication passage; a valve that opens or closes the communication passage; and a controller that controls the injector and the valve. When the engine is rotated, an air-fuel mixture is compressed in the cylinder, and an accumulating portion of the controller accumulates the air-fuel mixture in the pressure accumulator. When the engine is restarted, a supplying portion of the controller supplies the air-fuel mixture accumulated in the pressure accumulator to the cylinder. | 08-30-2012 |
20120201064 | POWER CONVERTER - A power converter includes a booster circuit, an inverter circuit, a hysteresis control circuit, and a proportional-integral control circuit. The booster circuit boosts DC power of a DC power source. The inverter circuit converts the DC power outputted from the booster circuit into AC power and outputs the AC power to a system. The hysteresis control circuit controls the inverter circuit by hysteresis control so that the AC power can be outputted to the system when an AC voltage of the system is less than a DC voltage of the power source. The proportional-integral control circuit controls the booster circuit by proportional-integral control so that the AC power can be outputted to the system when the AC voltage of the system is larger than the DC voltage of the power source. | 08-09-2012 |
20120199321 | EXHAUST GAS COOLING ADAPTER - The invention relates to an exhaust gas cooling adapter that is arranged between an exhaust port that is open to a cylinder head of an internal combustion engine and an exhaust manifold, and that includes an exhaust gas flow path through which exhaust gas flows from the exhaust port to the exhaust manifold; and a coolant flow path that is formed inside of an adapter wall surrounding this exhaust gas flow path, and that cools the exhaust gas that flows through the exhaust gas flow path. There is a curved portion in the exhaust gas flow path. Also, a peel inhibiting portion is formed on an inner peripheral surface of the exhaust gas flow path in a region farther toward an inside of the curve than an exhaust gas flow path center line of this curved portion. | 08-09-2012 |
20120195780 | HIGH PRESSURE PUMP - A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger. | 08-02-2012 |
20120195779 | HIGH PRESSURE PUMP - A plunger stopper is installed to a cylinder hole forming portion of a cylinder forming member. The plunger stopper cooperates with a step portion of a plunger to limit movement of the plunger in a state where a slide surface of the plunger contacts an inner peripheral wall surface of the cylinder hole. | 08-02-2012 |
20120195778 | HIGH PRESSURE PUMP - A gas chamber is placed adjacent to a variable volume chamber of a high pressure pump. The gas chamber includes an inner blocking wall, which borders on the variable volume chamber and contacts fuel in the variable volume chamber, an outer blocking wall, which is opposed to the inner blocking wall, and gas, which fills a space that is defined between the inner blocking wall and the outer blocking wall. | 08-02-2012 |
20120181990 | DC POWER SUPPLY APPARATUS - A DC power supply apparatus includes a charging circuit, which charges a secondary battery of a vehicle from an AC power source device or a DC power source device. The charging circuit includes a non-insulating converter circuit and an insulating converter circuit. A breaker relay disconnects the AC power source device and the charging circuit in an initial charging period to supply a large charging current to the secondary battery by the non-insulating converter circuit. As a result, charging can be performed with high efficiency without the insulation transformer. The breaker relay connects the AC power source device and the charging circuit after the initial charging period. Only the insulating converter circuit supplies the charging current to the secondary battery. Thus, adverse effect of stray capacitance of a circuit of the vehicle can be eliminated. | 07-19-2012 |
20120180649 | HIGH PRESSURE PUMP - At least one choked flow passage communicates between one side of the movable member and the other side of the movable member and limits an amount of fuel, which passes from the one side of the movable member to the other side of the movable member, when the movable member is moved by an urging force of a relief spring toward a valve element. A larger amount of fuel, which is larger than the amount of fuel that is passable through the at least one choked flow passage, flows from a first return flow passage to a second return flow passage, when the movable member is moved toward the other side, which is opposite from the valve element, against the urging force of the relief spring. | 07-19-2012 |
20120174673 | ULTRASONIC SENSOR - An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold. | 07-12-2012 |
20120161793 | CAPACITIVE OCCUPANT DETECTION APPARATUS - A capacitive occupant detection apparatus comprising a sensor unit and a control unit is disclosed. The sensor unit includes a detection electrode and a periphery guard electrode. The control unit includes: a signal application circuit for applying an oscillation signal to the detection electrode; an operational amplifier for applying to the guard electrode a signal having the same phase and potential as the oscillation signal applied to the detection electrode; and a control circuit for receiving current and voltage values supplied to the detection and for determining a mounting state on a seat based on the inputted current and voltage values (including phase information). The periphery guard electrode is located to surround the detection electrode when viewed from an upper side of the detection electrode. | 06-28-2012 |
20120153877 | SYSTEM FOR CAUSING TEMPERATURE RISE IN BATTERY - A battery temperature rise causing system has a converting unit for converting voltage of electric power held in one of a rechargeable battery and a capacitor and applies the converted voltage to the other one, and a control unit controlling the converting unit to alternately perform first transfer of electric power from the battery to the capacitor and second transfer of electric power from the capacitor to the battery while changing the first transfer for the second transfer each time the battery voltage reaches a lower limit and changing the second transfer for the first transfer each time the battery voltage reaches an upper limit, and to increase temperature of the battery due to heat generated by electric current flowing through the battery during the electric power transfer. | 06-21-2012 |
20120152510 | BONDING STRUCTURE AND BONDING METHOD OF HEAT DIFFUSION MEMBER, AND COOLING UNIT USING THE SAME - A bonding structure includes a first member, a second member and a bonding member. The first member has a plate shape and is made of a carbon-base material. The first member serves as a heat diffusion member that transfers heat at least in a thickness direction, which is perpendicular to a plane of the plate shape. The second member is bonded to the first member through the bonding member. The first member has a metal thin film at least on an opposed surface that is opposed to the second member. The bonding member is disposed between the opposed surface of the first member and the second member. The bonding member is provided by a sintered body of metal particle. For example, the bonding structure is employed in a cooling unit including a heat source. | 06-21-2012 |
20120146758 | TRANSFORMER INCORPORATED IN ELECTRONIC CIRCUITS - A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils. | 06-14-2012 |
20120146668 | CAPACITIVE OCCUPANT SENSING APPARATUS - A control circuit identifies whether an occupant on a seat is an adult or a child based on a first capacitance between a first sensing electrode and a ground and a second capacitance between a second sensing electrode and the ground. The first capacitance is computed based on a value of an electric current, which is supplied to the first sensing electrode at the time of applying an oscillation signal from a signal application circuit to the first sensing electrode. The second capacitance is computed based on a value of an electric current, which is supplied to the second sensing electrode at the time of applying an oscillation signal from the signal application circuit to the second sensing electrode. | 06-14-2012 |
20120143456 | DRIVING ASSISTANCE APPARATUS AND DRIVING ASSISTANCE SYSTEM - A driving assistance apparatus mounted to a vehicle is disclosed. The apparatus determines whether an amount of change in tire wheel speed of each tire wheel of the vehicle exceeds a threshold. The apparatus specifies a tire wheel crossing order, which is an order in which the tire wheels of the vehicle cross over a level difference between a road and a parking lot when the vehicle crosses over the level difference. The apparatus determines whether or not the vehicle has crossed over the level difference between the road and the parking lot, based on whether a threshold-exceeding order is identical to the specified tire wheel crossing order. The threshold-exceeding order is an order in which the amounts of change in the tire wheel speed of the respective tire wheels exceed the threshold. | 06-07-2012 |
20120126965 | Information presentation apparatus and system - An information presentation apparatus for a vehicle is disclosed. The apparatus includes: a stimulator device located on a steering wheel of the vehicle and configured to generate stimulation at multiple sites on the steering wheel to provide skin sensation to a driver gripping the steering wheel; a direction information acquisition device configured to acquire direction information; and a controller configured to cause, in accordance with the acquired direction information, the stimulator device to successively generate the stimulation through the plurality of sites on the steering wheel to invoke an apparent movement that appears to the driver as if the skin sensation moves in a way indicative of a direction according to the direction information. | 05-24-2012 |
20120111658 | VEHICULAR STEERING CONTROL APPARATUS - A vehicular steering control apparatus has a steering direction control device and a reaction force application device. The steering direction control device controls a steering angle of steered wheels by controlling a steering direction control motor based on a steering wheel angle. The reaction force application unit is provided more closer to a steering wheel than the steering direction control device is and has a differential reduction unit and a reaction force application motor. The differential reduction unit transfers rotation of an input shaft to an output shaft. The reaction force application motor drives the differential reduction unit. The steering wheel and the steered wheels are normally linked mechanically, so that no fail-safe device is needed. | 05-10-2012 |
20120106221 | ELECTRIC POWER CONVERTER APPARATUS - An electric power converter apparatus includes an inverter circuit having a plurality of upper arm elements and a plurality of lower arm elements, a feedback controlling module calculating a voltage command value in order to control an output from the inverter circuit in a feedback control manner and a compensating module compensating the voltage command value with a compensation amount and outputting a compensated voltage command value. Each of the plurality of upper arm elements and the plurality of lower arm elements is operated to switch over based on a control signal that is set according to the compensated voltage command value and a dead time. The compensation amount is set by the compensating module in order to compensate a fluctuation in the output current due to the dead time. | 05-03-2012 |
20120098348 | NON-CONTACT ELECTRIC POWER SUPPLYING EQUIPMENT, NON-CONTACT ELECTRIC POWER RECEIVING DEVICE, AND NON-CONTACT ELECTRIC POWER SUPPLYING SYSTEM - Electric power supplying equipment and an electric power receiving device include a primary self resonant coil and a secondary self resonant coil, respectively, resonating through an electromagnetic field to allow the electric power supplying equipment to supply the electric power receiving device with electric power in a non-contact manner. A control device controls a high frequency electric power supply device to control supplying electric power from the primary self resonant coil to the secondary self resonant coil. The control device estimates a distance between the primary self resonant coil and the secondary self resonant coil from an S-parameter S | 04-26-2012 |
20120062117 | Headlamp for vehicle - A headlamp for a vehicle includes: a housing having a front opening; a lens cover arranged to cover the front opening of the housing; a lamp chamber defined by the housing and the lens cover; a light source provided in the lamp chamber; a lighting control circuit that controls lighting of the light source; and a heat dissipating member arranged in the lamp chamber. Further, the lighting control circuit is formed on a substrate. The heat dissipating member has a pillar portion and a plurality of heat dissipating fins. The pillar portion has the light source mounted thereto. The heat dissipating fins are provided on an outer periphery of the pillar portion so as to be spaced from one another. The pillar portion also has a recess formed therein. The substrate is received in the recess of the pillar portion. | 03-15-2012 |
20120061067 | Heat sink - A heat sink includes a pillar member, to which a device that generates heat is to be mounted, and a plurality of heat-dissipating fins arranged on a side surface of the pillar member to dissipate the heat generated by the device. The heat sink further includes a ring-shaped holding member that has a plurality of grooves formed therein. The holding member is mounted to a longitudinal end of the pillar member and has each of the heat-dissipating fins inserted in a corresponding one of the grooves of the holding member, thereby holding the heat-dissipating fins to the pillar member. Each of the heat-dissipating fins has a detachment prevention portion that prevents the heat-dissipating fin from being detached from the pillar member in a direction perpendicular to the longitudinal direction of the pillar member. | 03-15-2012 |
20120057971 | Centrifugal blower - A centrifugal blower provided with a spiral shaped scroll chamber where a bottom part of the scroll chamber gradually expands downward in the axial direction of the fan well along with expansion of the spiral and where a flow area gradually expands toward an air outlet from a spiral start part of the casing, the centrifugal blower having an initial slant angle θ | 03-08-2012 |
20120057365 | Vehicle headlight - The vehicle head light is provided with a heat radiating member including a pillar member provided to extend from a bottom wall of a housing, on which a light source is mounted, a heat radiating fins fixed radially to the outer periphery of the pillar member, and a guide wall provided surrounding sides of the heat radiating fins. The guide wall is sloped with respect to bottom wall of the housing so that spaces each formed by adjacent two of the heat radiating fins and the guide wall become narrower with increasing distance from the lower end of the guide wall. The guide wall is formed with slits to make air communication between the light chamber and each of the spaces, the slits being shaped to be narrower with increasing distance from the lower end of the guide wall. | 03-08-2012 |
20120055730 | Steering control apparatus - A steering control apparatus has a variable gear ratio device and a power steering device. If abnormality arises in the VGRS device, an EPS motor is controlled based on a steering wheel angle and a speed increase ratio. Thus, vehicle wheels are controlled appropriately when abnormality arises in the VGRS device. Steered angle of the vehicle wheels relative to the steering wheel angle is not changed between before and after occurrence of abnormality in the VGRS device. As a result, movement of a vehicle does not deviate from the steering wheel angle and feeling of discomfort in steering a vehicle can be reduced. | 03-08-2012 |
20120055268 | Manipulated position detection device - A case accommodates a manipulated surface portion. A distortion member has a joint portion, which is connected with a periphery of the manipulated surface portion at one end, and a fixed portion fixed to the case at the other end. The distortion member has a movement transmission surface between the joint portion and the fixed portion. The movement transmission surface is movable according to a manipulating force caused by pressure applied to the manipulated surface portion. A distortion detection unit is adhered to the movement transmission surface and configured to detect a distortion of the movement transmission surface caused by a movement of the distortion member. The manipulated surface portion and the movement transmission surface are located on the same plane. | 03-08-2012 |
20120046833 | INFORMATION PROVIDING DEVICE FOR VEHICLE - An information providing device includes: a vehicle condition detector for detecting a vehicle condition; a support information generating element for generating support information for a driver; and a tactile sensibility notification element in a steering wheel for notifying the support information to the driver. The steering wheel includes a wheel element having a base, a movable portion and a driving unit. The movable portion is relatively movable with respect to the base. The driving unit drives the movable portion according to the support information. The movable portion and the driving unit provide the tactile sensibility notification element. Movement of the movable portion provides notification of the support information. | 02-23-2012 |
20120042841 | VALVE TIMING CONTROL APPARATUS - A valve timing control apparatus includes a housing that is rotatable with a crankshaft; a vane rotor that is rotatable with a camshaft; and a phase controller to compulsorily change a rotation phase of the vane rotor alternately between an advance side and a retard side with respect to the housing if an engine shifts to a high rotation state after the engine continuously has a low rotation state for a predetermined period or more. The engine in the low rotation state has a rotation speed lower than a predetermined rotation speed. The engine in the high rotation state has a rotation speed equal to or higher than the predetermined rotation speed. | 02-23-2012 |
20120035810 | Steering control apparatus - In a steering control apparatus, a worm gear is configured to have a lead angle for a self-lock operation, by which a worm wheel is allowed to rotate by rotation of a worm but the worm is not allowed to rotate by rotation of the worm wheel. Thus, a lock mechanism need not be provided separately from a gear mechanism and the apparatus is reduced in entire size. A VGRS control part checks whether the worm gear has a self-lock failure, which disables the self-lock operation. If the worm gear has the self-lock failure, idling suppression processing is performed to suppress idling of a steering wheel. Thus, even when the self-lock failure arises, the steering wheel is suppressed from idling. | 02-09-2012 |
20120032521 | NON-CONTACT ELECTRIC POWER FEEDING EQUIPMENT AND NON-CONTACT ELECTRIC POWER FEEDING SYSTEM - Electric power feeding equipment and an electric power receiving device include a primary self resonant coil and a secondary self resonant coil coil, respectively, resonating through an electromagnetic field to allow the electric power feeding equipment to feed the electric power receiving device with electric power in a non-contact manner. A control device sets a frequency range for a spread spectrum, as based on an S-parameter S | 02-09-2012 |
20120028749 | VEHICLE POWER TRANSMISSION DEVICE - A power transmission apparatus for a vehicle is provided which is equipped with a power split device and a speed variator. The power transmission device is designed to set a speed ratio of speed of rotation of an output of a power source to speed of rotation of a driven wheel in a power circulation mode of a power split device to lie within one of a positive range in which a sign of the speed ratio is positive and a negative range in which a sign of the speed ratio is negative. This results in a decrease in degree of torque acting on the speed variator such as a continuously variable transmission, thus permitting a required degree of durability of the speed variator to be reduced. | 02-02-2012 |
20120025642 | ROTATING ELECTRIC MACHINE - A rotating electric machine that can be improved in cooling performance is provided. An end plate includes an annular plate portion arranged to be spaced from a rotor in an axial direction and secured to a rotation shaft, and a tubular portion protruding from an outer edge of the annular plate portion to abut on an axial end surface of the rotor. A partition plate arranged between the rotor and an end plate forms a first space between the rotor and the partition plate and a second space between the annular plate portion and the partition plate. A communication passage allowing the first space and the second space to communicate with each other is formed in the partition plate at a radially outer side relative to a permanent magnet. A through hole extending through the annular plate portion in the axial direction is formed in the annular plate portion at a radially inner side relative to the permanent magnet. | 02-02-2012 |
20120001107 | Solenoid valve - A solenoid valve has a tapered valve seat disposed between a first flow passage and a second flow passage, a reduced diameter side of the valve seat that is connected with the first flow passage, and a valve body having a closing portion that reduces its diameter toward a tip facing the valve seat. The first flow passage and the second flow passage are connected/disconnected by sliding the valve body for contacting/detaching the closing portion to the valve seat, and a groove is disposed on the closing portion facing the direction of a fluid flow. | 01-05-2012 |
20110316388 | ULTRASONIC SENSOR - An ultrasonic sensor is disclosed. The ultrasonic sensor includes a piezoelectric element and an acoustic matching member. The piezoelectric element is configured to detect ultrasonic wave transmitted from a transmitter and reflected by a detection target object located in a detection target space. The acoustic matching member is configured to conduct the received ultrasonic wave to the piezoelectric element. The piezo electric element is covered with the acoustic matching member including a principal oscillation portion and a supplement oscillation portion. Thickness of a part of the supplement oscillation portion, the part covering the piezoelectric element, is smaller than a predetermined thickness threshold. | 12-29-2011 |
20110316367 | ROTARY ELECTRIC MACHINE WITH IMPROVED COOLING CAPABILITY - In a rotary electric machine, a stator coil includes in-slot portions each contained in a corresponding one of slots of a stator core. The stator coil includes turn portions each connecting one end of a corresponding one of the in-slot portions projecting from one axial end of the stator core with one end of a corresponding alternative one of the in-slot portions projecting the one axial end of the stator core. The turn portions provide an end portion of the stator coil. A coolant guide is placed to cover a circumferential outer part of the end portion of the stator coil from radially outside thereof and provided with holes therethrough. The coolant guide guides a coolant therealong in a circumferential direction of the end portion of the stator coil while guiding, through the holes, a part of the coolant to the end portion of the stator coil. | 12-29-2011 |
20110315909 | CONSTANT-RESIDUAL-PRESSURE VALVE - A constant-residual-pressure valve is disposed in a communication passage connecting a high-pressure fuel passage through which pressurized fuel flows with a low-pressure fuel passage through which the fuel flows toward a high-pressure pump. The constant-residual-pressure valve includes a valve body, a spring, and a spring stopper. The valve body can sit on a valve seat formed in an inner passage. The spring biases the valve body toward the valve seat. The spring stopper has a downstream-orifice of which flow passage area is smaller than that of a passage upstream of the valve seat. Thereby, cavitation between the valve body and the valve seat is less generated. | 12-29-2011 |
20110313620 | Steering control apparatus - A VGRS device checks whether assist control of an EPS device for assisting steering operation of a steering wheel is being stopped. If the assist control of the EPS device is being stopped, a speed increase ratio is determined so that the rotation angle of the output shaft is less than the rotation angle of the input shaft. A VGRS motor is controlled and driven based on a determined speed increase ratio. Thus, steering operation of the steering wheel can be controlled appropriately so that the steering operation of the steering wheel can be continued with relatively small torque. It is less likely that a driver will erroneously feel that the steering wheel is locked. | 12-22-2011 |
20110307163 | CONTROLLER OF INTERNAL COMBUSTION ENGINE - A controller performs compression self-ignition combustion control for combusting a mixture gas by injecting fuel into a cylinder in a negative valve overlapping period (NVO period), in which both of an exhaust valve and an intake valve are closed, and by causing self-ignition of the mixture gas using compression in a compression stroke. If knocking is detected during the above control, the controller performs knock suppression control for correcting a fuel injection quantity in the NVO period to suppress the knocking. If a pressure increase rate of cylinder pressure during the combustion is lower than a threshold value, the controller performs increase correction of the fuel injection quantity in the NVO period. If the pressure increase rate is equal to or higher than the threshold value, the controller performs decrease correction of the fuel injection quantity in the NVO period. | 12-15-2011 |
20110307123 | ELECTRIC POWER LINE COMMUNICATION SYSTEM FOR VEHICLE - An in-vehicle electric power line communication system includes: a pair of direct current electric power lines functioning as electrically equilibrated communication lines; multiple communication devices communicating with each other via the communication lines; and an ignition switch. Each communication device applies a high frequency signal to the communication lines so that equilibrium communication is performed. One communication line starts and stops supplying direct current electricity according to a status of the ignition switch. Each communication device detects an electric potential of the one communication line or a potential difference between the direct current electric power lines. Each communication device determines the operation status of the vehicle based on the electric potential or the potential difference. Each communication device performs the equilibrium communication according to the operation status of the vehicle. | 12-15-2011 |
20110303399 | Thermal diffuser and cooling apparatus for cooling heat source using the same - A thermal diffuser includes a plurality of thermally-conductive plates, each of which has a strip-like shape. The plurality of thermally-conductive plates is laminated onto one another in a plate-thickness direction of the strip-like shape to form a laminated body. Each of the plurality of thermally-conductive plates has thermal conductivities in a longitudinal direction and in a width direction of the strip-like shape better than a thermal conductivity in the plate-thickness direction. The thermally-conductive plates has sides, each of which extends in the longitudinal direction. The laminated body is formed such that the sides of the thermally-conductive plates form a plate surface of the laminated body, which surface extends in the plate-thickness direction that serves as a lamination direction, in which the thermally-conductive plates of the laminated body are laminated. A direction perpendicular to the plate surface corresponds to a thickness direction of the laminated body. | 12-15-2011 |
20110303171 | VALVE TIMING CONTROLLER - A valve timing controller has a case which defines a fluid chamber therein. A magnetic viscosity fluid is enclosed in the fluid chamber. The magnetic viscosity fluid including magnetic particles and its viscosity varies according to a magnetic field applied thereto. A coil and a control circuit applies magnetic field to the magnetic viscosity fluid to variably control a viscosity thereof. A brake rotor is rotatably accommodated in the fluid chamber and receives a brake torque from the magnetic viscosity fluid according to the viscosity thereof. A phase adjusting mechanism is connected to the brake rotor for adjusting a relative rotational phase between the crankshaft and the camshaft according to the brake torque. When it is estimated that the engine will be started, the coil is energized to generated heat in the magnetic viscosity fluid. | 12-15-2011 |
20110301846 | VEHICLE PERIMETER MONITOR - A vehicle perimeter monitor includes: a shooting device mounted on a vehicle for shooting an image of an outside of the vehicle; a controller including a detector and a generator, wherein the detector sets a detection line in a shot image, and detects a change amount of brightness of a picture cell on the detection line so that the detector detects movement of a moving object along with the detection line, and wherein the generator generates information display according to a detection result of the moving object; and a display for displaying the shot image and the information display. | 12-08-2011 |
20110293036 | Communication signal generating device and communication apparatus for use in communication system - The communication signal generating device is for use in a communication system where communication signals each of which is set at a first level or a second level are exchanged among a plurality of communication apparatuses through a communication line. The communication signal generating device includes a switching element provided in a communication line to connect the communication line to a ground or a constant voltage source, and a driving means to generate a first communication signal at the first level by turning on the switching element to thereby pass a certain current to the communication line, and generate a second communication signal at the second level by turning off the switching element to thereby pass no current to the communication line. The driving means is configured to gradually increase an output impedance of the switching element during one bit time of the first communication signal. | 12-01-2011 |
20110287732 | Wireless communication apparatus - In a wireless communication apparatus, when a first switch electrically connects a second antenna to an impedance matching circuit and a second switch electrically connects a first antenna to a reception circuit, a frequency signal output from an oscillator of the reception circuit is received by the second antenna and applied to the impedance matching circuit. Then, a controller controls the impedance of the impedance matching circuit so as to bring a RSSI voltage output from a signal strength detection circuit of the reception circuit into agreement with a reference RSSI voltage, thereby bringing the reference frequency of the first antenna into agreement with a reference frequency. | 11-24-2011 |
20110285424 | DIFFERENTIAL COMMUNICATION DEVICE - When a transmission signal is detected as having been changed from a high level to a low level, two transmission lines are connected for only a predetermined time through a diode by a first transistor and a second transistor. The diode is arranged such that its forward direction is from a high-side transmission line to a low-side transmission line. The diode turns on, when a potential of the high-side transmission line becomes higher than that of the low-side transmission line by ringing and a potential difference therebetween exceeds a forward drop voltage of the diode. As a result, a peak wave level of a positive side in the ringing is limited to the forward drop voltage of the diode. | 11-24-2011 |
20110285408 | Occupant detection apparatus - An occupant detection apparatus includes a capacitive sensor, a signal applying circuit, a signal detector, and a voltage applying circuit. The capacitive sensor has an electrode. The signal applying circuit applies a voltage amplitude signal to the electrode during a first time period, but does not apply the voltage amplitude signal to the electrode during a second time period. The voltage amplitude signal has a voltage with a varying amplitude. The signal detector detects a change in an electric current flowing through the capacitive sensor during the first time period. The voltage applying circuit applies a predetermined voltage to the electrode during the entire first time period and during at least part of the second time period. | 11-24-2011 |
20110262112 | Rotation detecting apparatus and rotation detecting system - A rotation detecting apparatus for detecting a rotational state of a direct-current motor includes a driving device, a control device, an energization detecting device, an alternating-current component detecting device, and a rotational state detecting device. An impedance between brushes of the motor changes periodically in accordance with rotation of the motor. The alternating-current component detecting device detects change of an alternating-current component of electric current that is supplied to the motor based on an electrical quantity. The change of the alternating-current component is caused by change of the impedance caused in accordance with the rotation. The rotational state detecting device detects at least one of a rotation angle, a rotational direction, and a rotational speed of the motor based on a detection result of the alternating-current component detecting device. | 10-27-2011 |
20110261651 | ULTRASONIC SENSOR - An ultrasonic sensor includes a transmitting device, receiving devices arranged in an array, and a circuit device. One receiving device is configured as a reference receiving device. The circuit device includes a reference signal generator and first and second synchronous detectors. The reference signal generator generates a reference signal by using a received signal of the reference receiving device. The first synchronous detector performs synchronous detection of a received signal of one of the receiving devices based on the reference signal to detect a distance to an object. The second synchronous detector performs synchronous detection of received signals of the receiving devices except the reference receiving device based on the reference signal to detect a direction of the object. | 10-27-2011 |
20110259287 | Engine cooling device - In an engine, a block-side flow path for circulating cooling water to cool a cylinder block, and a head-side flow path for circulating cooling water to cool a cylinder head are formed. A head-side outlet temperature of cooling water flowing out of the head-side flow path is adjusted by using a water pump that pressure sends the cooling water to both the block-side flow path and the head-side flow path. A block-side outlet temperature of cooling water flowing out of the block-side flow path is adjusted by a first thermostat that changes a flow amount of the cooling water flowing out of the block-side flow path. The cooling water flowing out of the block-side flow path is used as a heat source of first and second heater cores for heating air. | 10-27-2011 |
20110256841 | Wireless communication apparatus having automatic antenna tuning function - A matching circuit, connected to a receiving antenna and to the input of a receiving circuit, incorporates a variable capacitor that is adjustable for tuning the resonance frequency of the antenna to a desired reception frequency. In an automatic tuning mode of operation, an oscillator signal of different frequency from the reception frequency is applied to induce resonance of the antenna and matching circuit, and the variable capacitor is adjusted until an output signal level from the receiving circuit attains a predetermined value which has been stored beforehand in a memory and which corresponds to a condition whereby the antenna resonance frequency corresponds to the reception frequency and impedance matching exists between the antenna and receiving circuit. | 10-20-2011 |
20110254446 | Headlamp assembly - In a light chamber formed in a housing case and a lens cover placed at a front part of the housing case in a headlamp assembly, a projection lens, a shade and a light source are arranged in line from the front side of the light chamber along an optical axis of the light source. A radiating member has radiating fins of a plate shape vertically placed in the light chamber, and radiates heat energy generated by the light source to surrounding air. A slit composed of a vertical slit part and an inclined-slit part is formed in each of the radiating fins. The formation of the slit generates a change of heat capacity and a temperature difference at upper and bottom parts of each of the radiating fins. The incline-slit part is extended from the top of the vertical slit part to the upper part of the radiating fin. | 10-20-2011 |
20110251042 | ALUMINA SINTERED BODY - An alumina sintered body of the present invention has alumina crystals as a main phase and an amorphous grain boundary glass phase. The amorphous grain boundary glass phase is a grain-boundary glass phase having an amorphous glass component in which at least one of either CaO or MgO is added to SiO | 10-13-2011 |
20110242834 | Headlamp assembly for motor vehicle - In a light chamber formed by a housing case and a lens cover placed at a front part (which is open) of the housing case in a headlamp assembly, a projection lens, a shade and a light source are arranged in order from the front side of the light chamber along an optical axis of the light source. A reflector for reflecting light emitted from the light source is placed at a position which is opposite to the light source. A radiating member is composed of radiating fins of a plate shape vertically placed in the light chamber, and radiates heat energy generated by the light source to surrounding air. A control plate surrounds and crosses at a right angle to the radiating fins in the light chamber. The control plate has a size of suppressing air-convection around the radiating fins and is fixed to the housing case through poles. | 10-06-2011 |
20110242833 | Headlamp assembly for motor vehicle - In a light chamber formed by a housing case and a lens cover of a headlamp assembly, a projection lens and a light source are arranged in order along an optical axis of the light source from a front side of the light chamber. Radiating fins of a plate shape is vertically placed in the light chamber and radiate heat energy generated by the light source. A heat exchange chamber is formed in a ceiling wall of the housing case above the radiating fins. The heat exchange chamber has a concave shape from the ceiling wall of the housing case, and is open toward the radiating fins side. | 10-06-2011 |
20110234337 | Filter circuit for differential communication - In a filter circuit, first and second coils are connected to first and second communication lines, respectively. At a secondary side of the first and second coils, first and second capacitors are connected in series between the first and second communication lines. At a primary side of the first and second coils, third and fourth capacitors are connected in series between the first and second communication lines. A connection node between the first and second capacitors is grounded. A connection node between the third and fourth capacitors is grounded. The first and second coils are adjacently arranged in order to have a reversed polarity to each other. The filter circuit having the above structure works as a n-type filter capable of eliminate both common mode noise and normal mode noise. The filter circuit can eliminate noise caused by the first and second coils. | 09-29-2011 |
20110229327 | Centrifugal multiblade fan - A centrifugal multiblade fan includes a rotatable shaft, blades, a side shroud, and a main shroud. A front edge has a shape inclined radially outward in a direction from the main shroud toward the side shroud. When viewed from an axial direction, a corner part on a positive pressure surface-side is located on a tangential line of a positive pressure surface reference curve at a positive pressure surface side reference corner part, and when viewed from the axial direction, a curvature radius of a negative pressure surface becomes larger in a direction from the side shroud toward the main shroud. | 09-22-2011 |
20110221286 | ELECTRIC ROTATING MACHINE - An electric rotating machine includes a stator, a rotor, and a housing. The stator includes a stator core and a stator coil formed by laminating magnetic steel sheets. Each of the magnetic steel sheets has through-holes that are formed to penetrate the magnetic steel sheet in the axial direction of the stator core. All of the magnetic steel sheets are divided into groups each of which includes axially-adjacent n of the magnetic steel sheets, where n is an integer not less than 2. For each of the groups, corresponding n of the through-holes of the n magnetic steel sheets of the group communicate with one other to form an inside coolant passage. The inside coolant passage fluidically connects an outside coolant passage, which is formed between the housing and the radially outer surface of the stator core, with a corresponding one of the slots of the stator core. | 09-15-2011 |
20110216944 | In-vehicle white line recognition apparatus - An in-vehicle, white line recognition apparatus is disclosed. Form an image captured by a camera, the apparatus extracts multiple white line candidates including a first white line candidate and a second white line candidate. The apparatus calculates a certainty factor of each white line candidate, the certainty factor indicating a degree of certainty that the each white line candidate represents the white line. When the first and second white line candidates are, within a predetermined range and when a ratio of contrast of the first white line candidate to that of the second white line candidate is less than a predetermined value, the apparatus decreases the certainty factor of the first white line candidate. | 09-08-2011 |
20110215983 | Antenna device including helical antenna - In an antenna device, a first helical part of a first antenna and a second helical part of a second antenna is disposed in a dielectric body on a ground plane. Each helical part is helically wound up in a direction perpendicular to the ground plane and includes a plurality of one-turn portions. Each one-turn portion of the first helical part has a peripheral length of M times a wavelength λ of use, where M is a positive natural number. One of the one-turn portions of the second helical part closest to the ground plane has a peripheral length Ks that is N times the wavelength λ of use, where N is a positive natural number greater than M. One of the one-turn portions of the second helical part farthest away from the ground plane has a peripheral length Ke, and (M·λ)09-08-2011 | |
20110205035 | POWER LINE COMMUNICATION SYSTEM - A power line communication system includes a plurality of communication nodes, a communication line coupling the communication nodes, a direct current power line coupling a connection point of the communication line with one of a positive terminal of a battery and a supply terminal of a load, and a capacitor coupled between the direct current power line and a ground. The communication nodes communicate with each other by superimposing a high frequency signal having a wavelength of λ to the communication line. The capacitor is coupled with the direct current power line at a position where a line length from the connection point is (n×λ/2+λ/4), where n is a natural number including zero. | 08-25-2011 |
20110204716 | OPERATION CONTROL SYSTEM - In an operation control system, when a selection manipulation for blinking one of turn lamps is inputted using an in-vehicle combination switch, a frequency signal corresponding to the selection manipulation is outputted from a signal oscillation section to a signal transformation section via a common control line. In addition, the signal transformation section causes, out of two individual signal lines, an individual signal line corresponding to the inputted frequency signal to be in an active state. One of driver sections blinks one of turn lamps corresponding to the individual signal line being in the active state. It is noted that a drive control section stops temporarily operations of the turn lamps while both the input signal lines are in the active state. | 08-25-2011 |
20110200258 | Lane-marker recognition system with improved recognition-performance - In a lane-marker recognition system installed in a vehicle, an image pickup unit picks up an image of a target region including a road ahead of the vehicle, and a light-intensity detecting unit detects a change in a light intensity of the target region in the picked-up image. A lane-marker recognizing unit compares the change in the light intensity of the target region in the picked-up image with a predetermined threshold value, and recognizes a region of at least one lane marker in the target region based on a result of the comparison, the at least one lane marker being formed on the road. A re-determining unit re-determines the threshold value based on a light intensity of the recognized region of the at least one lane marker. | 08-18-2011 |
20110197850 | FUEL SUPPLY SYSTEM - A sub-injector injects liquid fuel into a vaporized-fuel chamber of a vaporized-fuel tank. The injected liquid fuel is vaporized in the vaporized-fuel chamber. The generated vaporized fuel is supplied to a combustion chamber through a vaporized-fuel passage. A supply of the vaporized fuel to the combustion chamber is controlled by a purge valve. Thereby, the vaporized fuel can be precisely supplied to the engine at a start of engine, so that emission can be reduced. | 08-18-2011 |
20110181725 | OPTICAL SENSOR DEVICE FOR VEHICLE - A camera unit is provided in a hollow portion of an electric motor. A rotor is rotatably arranged at an outer periphery of a stator. A cylindrical motor casing is attached to the rotor. A lens cover is attached to the motor casing at a position of a front side of a lens of the camera unit. The lens cover is rotated together with the motor casing and the rotor, so that attachment adhered to an outer surface of the lens cover is removed by centrifugal force. | 07-28-2011 |
20110178673 | WEIGHT DETECTION DEVICE FOR VEHICLE AND METHOD FOR DETECTING WEIGHT OF VEHICLE COMPONENT - A vehicle includes a wheel and a vehicle body connected with each other via a suspension having a spring. An oscillation detection unit detects an oscillation of the vehicle body in forward and backward directions. A resonance frequency detection unit detects a resonance frequency of the vehicle body according to a detection result of the oscillation detection unit. A weight determination unit determines a weight of the vehicle body according to the resonance frequency detected by the resonance frequency detection unit. | 07-21-2011 |
20110169547 | RINGING SUPPRESSION CIRCUIT - A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and potential applied to a control terminal of the low side switch. | 07-14-2011 |
20110156509 | ELECTRIC ROTATING MACHINE WITH COOLING MECHANISM - An electric rotating machine includes a rotor, a stator in which a coil is so wound as to have an coil end, and a coolant supply pipe. The coolant supply pipe lies with a length thereof extending substantially parallel to an axis of rotation of the rotor and is disposed above the stator in a direction of gravitational force. The coolant supply pipe has a first and a second coolant outlet through which coolant is to be emitted to the coil end. The first and the second coolant outlets are so oriented as to direct streams of the coolant to a first area and a second area of the coil end which are different in location from each other. This enables the coolant to be emitted to almost the whole of the coil end even when the electric rotating machine is titled in a direction in which the rotor turns. | 06-30-2011 |
20110156508 | ELECTRIC ROTATING MACHINE WITH COOLING MECHANISM - An electric rotating machine is provided which includes a stator in which a coil is so wound as to have an coil end and a coolant channel. The coolant channel has defined therein a flow path through which coolant flows and a flow separator disposed in the flow path and a first and a second coolant outlet. The flow separator works to separate a flow of the coolant into at least a first and a second coolant streams. The first coolant outlet communicates with the first coolant stream, while the second coolant outlet communicates with the second coolant stream. The first and second coolant outlets drain the coolant to different portions of the coil end, thereby cooling almost the whole of the coil end even when the electric rotating machine is tilted undesirably. | 06-30-2011 |
20110150026 | SEMICONDUCTOR LASER PUMPED SOLID-STATE LASER DEVICE FOR ENGINE IGNITION - There is provided a semiconductor laser pumped solid-state laser device for engine ignition that can stably provide optical energy required for ignition across a wide temperature range. In the semiconductor laser pumped solid-state laser device for engine ignition, a plurality of semiconductor lasers | 06-23-2011 |
20110148258 | Rotation sensor and direct current motor - A direct current motor includes an armature coil having at least three phase coils, a commutator having multiple commutator segments connected to the armature coil, a pair of brushes in slidable contact with the commutator to supply power to the phase coils through the commutator, a rotation shaft, and a ring varistor coaxially fixed to the rotation shaft and having a ring-shaped varistor body and multiple electrodes that are circumferentially arranged on a surface of the varistor body. Each commutator segment is connected to a corresponding electrode of the ring varistor. The electrodes of the ring varistor are paired to form electrode pairs. Each electrode pair includes any two of the electrodes. A capacitance of one electrode pair is different from a capacitance of another electrode pair. | 06-23-2011 |
20110140818 | Input device - An input device includes an operating member, a restoring force generating part for automatically returning the operating member to a stationary position, a detector for detecting an operation state of the operating member, an actuator for applying an external force to the operating member and a controller for controlling the actuator. The operating member is displaceable in directions along a XY plane including an X axis and a Y axis and rotatable about a Z axis. The actuator includes a first magnet, a second magnet and an electromagnet having a core and a coil. One of the electromagnet and the first and second magnets is integrated with the operating member. At least in a stationary condition, the first magnet and the second magnet are located on opposite sides of an axis of rotation of the operating member, and are opposed to end surfaces of the core across predetermined clearances, respectively. | 06-16-2011 |
20110139619 | NOBLE METAL CATALYST POWDER, GAS SENSOR ELEMENT USING NOBLE METAL CATALYST POWDER, AND GAS SENSOR - A noble metal catalyst powder produced by using co-precipitation method is made of noble metal alloy particles containing Pa, Pd, and Rh. The noble metal alloy particles have an average particle size within a range of 0.2 μm to 2.0 μm. A standard deviation in content of each of Pa, Pd, and Rh is not more than 20 mass %. This standard deviation in content of each of Pa, Pd, and Rh is detected at not less than ten detection-points of the noble metal catalyst powder by quantitative elemental analysis. A gas sensor element has the noble metal catalyst powder. An A/F sensor is equipped with the gas sensor element using the noble metal catalyst powder. | 06-16-2011 |
20110135014 | Transmission device for differential communication - In a transmission device for differential communication, a first cathode-side element part is coupled between a first communication line and a cathode-side power supply line, a second cathode-side element part is coupled between a second communication line and the cathode-side power supply line, a first anode-side element part is coupled between the first communication line and an anode-side power supply line, and a second anode-side element part is coupled between the second communication line and the anode-side power supply line. A driving portion drives the element parts based on transmission data input from an outside. A target potential generating portion generates target potentials of the element parts based on potentials of the first communication line and the second communication line. | 06-09-2011 |
20110132591 | HEAT EXCHANGER AND METHOD OF MANUFACTURING SAME - Provided are a heat exchanger having a novel structure and efficiently cooling a heat generating body, and a method of manufacturing the heat exchanger. A heat exchanger has flow paths formed by being closed by an upper plate and a lower plate which have rectilinearly formed upstanding fins parallelly arranged at specific intervals, and gaps extend between adjacent fins in the top-bottom direction along the direction in which the fins extend. Either of or both the upper plate and the lower plate are provided with projections arranged in the longitudinal direction of the flow path and projecting inward of the flow path. | 06-09-2011 |
20110128995 | Wireless communication system - In a wireless communication system, a portable device transmits a first signal spread based on a reference period indicated by a synchronization signal transmitted from an in-vehicle device and transmits a second signal spread based on an operation by a user. The in-vehicle device sets a search period based on a variation range in a delay time from when the synchronization signal is transmitted to when the spread first signal is transmitted and sets a residual period that starts at an ending point of the search period and ends at an ending point of the reference period when a starting point of the reference period is set at a starting point of the search period. When the in-vehicle device fails in a synchronous acquisition for the search period, the in-vehicle device performs a synchronous acquisition process for the residual period. | 06-02-2011 |
20110124489 | CARBON-BASED MATERIAL COMBUSTION CATALYST, MANUFACTURING METHOD OF THE SAME, CATALYST CARRIER, AND MANUFACTURING METHOD OF THE SAME - A carbon-based combustion catalyst is obtained by calcining sodalite at a temperature of 600° C. or more. Alternatively, a carbon-based combustion catalyst is obtained by performing the following mixing step, drying step, and calcination step. In the mixing step, aluminosilicate (sodalite), and an alkali metal source, and/or an alkaline earth metal source are mixed in water to obtain a liquid mixture. In the drying step, the liquid mixture is heated to evaporate the water, thereby obtaining a solid. In the calcination step, the solid is calcined at a temperature of 600° C. or more so that a part or all of the sodalite structure is changed. The thus-obtained catalyst can cause carbon-based material to be stably burned and removed at a low temperature for a long time. | 05-26-2011 |
20110118077 | VEHICLE POWER TRANSMISSION DEVICE AND CONTROL SYSTEM FOR POWER TRANSMISSION - A power transmission apparatus for a vehicle which includes a first, a second, and a third rotor which split power among a motor-generator, an internal combustion engine, and a driven wheel of the vehicle. The apparatus also includes a torque transmission control mechanism which selectively transmits torque between the first rotor and the engine. When the torque transmission control mechanism establishes the transmission of torque between the first rotor and the engine, powers, as produced by the second and third rotors, are opposite in sign to each other. This enables the speed of the first rotor to be set to zero (0) or a very low speed. Therefore, when an initial torque is applied to the engine through the first rotor to start the engine, the mechanical vibration which usually arises from the application of initial torque and is to be exerted on the power transmission apparatus is minimized. | 05-19-2011 |
20110118075 | VEHICLE POWER TRANSMISSION DEVICE AND CONTROL SYSTEM FOR POWER TRANSMISSION - A power transmission apparatus for a vehicle which includes a first and a second planetary gear set to transmit power to a driven wheel. A ring gear of the first planetary gear set is coupled to the driven wheel. A carrier of the first planetary gear set is coupled to a ring gear of the second planetary gear set. A carrier and a sun gear of the second planetary gear set are so linked as to have signs of power which are opposite each other. A sign of speed of the ring gear of the second planetary gear set is reversed under the condition that the a sign of speed of a motor-generator is fixed, thereby reversing the sign of speed of the carrier of the first planetary gear set, which eliminate the circulation of power between the sun gear and the carrier of the first planetary gear set. | 05-19-2011 |
20110109544 | Display control device for remote control device - A display control device for a remote control device is disclosed. The display control device is connected with a display device for displaying an operation screen having multiple icons and a remote control device spaced apart form the display device. The display control device performs display control in the following way. The display control device displays an identification display mark in association with one icon in a selection state. When an instruction of an operation direction is inputted, the display control device displays a visual presentation indicative of the operation direction on the operation screen by making a change in display manner of the identification display mark, with the identification display mark being displayed in association with the one icon in the selection state. | 05-12-2011 |
20110108247 | COOLING APPARATUS FOR SEMICONDUCTOR ELEMENT - A semiconductor element cooling apparatus includes: a first member whose first surface on which a semiconductor element is mounted, and whose second surface has fins that define coolant flow paths, and that extend in a first direction, and that stand from the second surface to a predetermined height, and that are spaced from each other by predetermined intervals; and a second member that defines the coolant flow paths that extend in the first direction. The fins have grooves which extend in a second direction that intersects the first direction, and which have a depth that extends from the distal end side of the fins toward the second surface. The depth of the grooves is smaller than the height of the fins. A protrusion-forming member is disposed in the grooves, and extends across adjacent fins, and forms protrusions in the coolant flow paths defined by the adjacent fins. | 05-12-2011 |
20110084730 | TRANSMISSION APPARATUS FOR DIFFERENTIAL COMMUNICATION - A transmission apparatus for differential communication includes a driver bridge circuit and a pair of noise protection circuits. The driver bridge circuit includes four output devices that are independently connected between each of a pair of transmission lines and a power line or a ground line. Each noise protection circuit is provided to a corresponding transmission lines. Each noise protection circuit includes a ground potential detector and an impedance controller. The ground potential detector detects a potential of the corresponding transmission line with respect to the ground line. The impedance controller causes an impedance of the corresponding transmission line with respect to the ground line to become equal to an impedance of the other transmission line with respect to the ground line, when the detected potential becomes outside a predetermined potential range. | 04-14-2011 |
20110083935 | CLUTCH MECHANISM AND CLUTCH SYSTEM HAVING THE SAME - When a pulley and an armature are coupled with each other, first and second permanent magnets place the movable member at a location where a magnetic resistance of an attracting magnetic circuit, which generates an attracting magnetic force to couple between the pulley and the armature, is reduced. In contrast, when the pulley and the armature are decoupled from each other, the movable member is placed at a location where the magnetic resistance of the attracting magnetic circuit is increased, and a magnetic resistance of a non-attracting magnetic circuit is reduced. Thereby, a coupled state or a decoupled state of the pulley and the armature can be maintained without an erroneous operation. | 04-14-2011 |
20110066329 | DRIVING SUPPORT DEVICE - A driving support device includes: an in-vehicle camera for shooting an image toward a driving direction of the vehicle; a display device for displaying the image; a steering wheel angle detector for detecting a steering wheel angle of the vehicle; and a display controller for calculating an expected driving track corresponding to a vehicle width and the steering wheel angle and for controlling the display device to display the expected driving track overlapped on the image. The display controller calculates one steering wheel line, which has a curvature changeable in accordance with the steering wheel angle. The display controller controls the display device to display the one steering wheel line at a center of the expected driving track in a vehicle width direction. | 03-17-2011 |
20110035100 | Information presentation device - An information presentation device includes: a directional information obtaining element for obtaining directional information based on a signal from an enhancement device for safety or comfort of a passenger of a vehicle; an information presentation controller for generating a driving signal based on the directional information; and a stimulation element including multiple vibrators for generating a traveling wave of vibration in an in-vehicle element. A directionality of the traveling wave corresponds to the directional information. The stimulation element transmits the traveling wave to the passenger so that the passenger perceives the directionality of the traveling wave. | 02-10-2011 |
20110032374 | Image correction apparatus and method and method of making transformation map for the same - An image correction apparatus, an image correction method and a transformation map making method are disclosed. The apparatus includes an imaging device, a memory section, a corrected image creation section and a display device. The imaging device has an optical axis inclined upward or downward with respect to a ground surface, and captures an image. The corrected image creation section transforms the captured image into a corrected image in accordance with a transformation map stored in the memory section, thereby making a correction on inclination of a display object with respect to a vertical direction. The display device displays the corrected image. | 02-10-2011 |
20110028260 | POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM - A power transmission device includes a planetary gear set and a first and a second connecting mechanism. The planetary gear set receives power from a power source and outputs it to a power-driven member. The first connecting mechanism connects a first and a second rotor of the planetary gear set through a separate path. The second connecting mechanism connects the second rotor and a third rotor of the planetary gear set through a separate path. The controller is operable selectively in a first operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged and a second operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged. This ensures suitable mechanical connections among the power source, the power-driven member, and the power split mechanism which match with an operating condition of the power transmission device. | 02-03-2011 |
20110017172 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE - An ON-ignition signal is outputted from an ignition control portion in a period from a posterior time point of the power stroke to an valve opening timing of an exhaust valve so that a capacitor is charged. Then, when it is determined that the maximum value of an ion-output value detected during a negative valve overlap period becomes greater than or equal to a threshold, it is determined that the applied voltage between an center electrode and a ground electrode of a spark plug is dropped. The ON-ignition signal is outputted again to charge the capacitor before the intake valve is opened. | 01-27-2011 |
20110002797 | Rotary machine - A rotary machine sucking in working fluid through a suction port into a housing and discharging it through the discharge port, provided with a motor stator provided at an inside circumferential surface of the housing and having inside surfaces which include a step surface designed to enclose a housing interior cavity by the inside surfaces; first and second motor rotors arranged at the insides of the inside surfaces separated by the step surface of the motor stator; and first and second rotational units, the first and second rotational units coupled to the first and second motor rotors respectively, and the first and second rotational units supported at the housing adjoiningly and eccentrically to each other. | 01-06-2011 |
20100313850 | FUEL INJECTION VALVE AND FUEL INJECTION DEVICE - It is equipped with an injector body | 12-16-2010 |
20100303127 | Vehicle compartment wireless communications apparatus - It is determined whether each of several subcarriers has an adequate propagation characteristic in a first horizontally polarized wave antenna. Of the several subcarriers, a subcarrier, which is determined to have an adequate propagation characteristic in the first horizontally polarized wave antenna, is assigned with transmission data. A transmission signal containing the transmission data is thereby transmitted from the first horizontally polarized wave antenna. In addition, of the several subcarriers, a subcarrier, which is determined not to have an adequate propagation characteristic in the first horizontally polarized wave antenna, is also assigned with transmission data in either a second horizontally polarized wave antenna or a vertically polarized, wave antenna. A transmission signal containing the transmission data is thus transmitted from the second horizontally polarized wave antenna or the vertically polarized wave antenna. | 12-02-2010 |
20100302113 | In-vehicle antenna device - An in-vehicle antenna device includes: a dielectric element having a front surface, first and second side surfaces and a rear surface and including a power supply point on both the first and second side surfaces, a first conductive surface on the first side surface, a second conductive surface on the second side surface, and a third conductive surface on the rear surface; and an antenna element including a base element coupled with the power supply point at one corner of the front surface and a branch element connected to the base element and having an end. A part of the branch element moves apart from one of the first and second conductive surfaces as it goes from the base element to the one end of the branch element. The front surface is attached to a windshield of a vehicle. | 12-02-2010 |
20100294242 | FUEL INJECTION VALVE AND FUEL INJECTION DEVICE - It is equipped with an injector body | 11-25-2010 |
20100289604 | ELECTROMAGNETIC RELAY - An electromagnetic relay switches to conduct and interrupt currents having different magnitudes and flowing though mutually opposite paths via the electromagnetic relay. The relay includes a coil generating a magnetic force and a pair of contact sections opened and closed selectively by the magnetic force. The contact sections comprise a pair of fixed contacts and a pair of movable contacts. Each fixed contacts is held by a pair of conductive fixed holders and is near a tip section of each fixed holder. The movable contacts are fixed to a conductive movable holder and moves toward and away from the fixed holders selectively in response to the magnetic force. The relay further includes two arc-extinguishing magnet members adjacent to the contact sections such that, the arc generated by interrupting one current having a magnitude larger than the other current is extended toward the tip section at each contact section. | 11-18-2010 |
20100289387 | Rotation detecting apparatus and direct current motor - A rotation detecting apparatus includes a direct-current motor, a power source part, an energization detecting part, and a rotation state detecting part. The direct-current motor is configured so that an inductance between a pair of brushes periodically changes in accordance with a rotation. The power source part applies a power source voltage between the pair of brushes. In the power source voltage, an alternating-current voltage is superimposed on a direct-current voltage. The energization detecting part detects an electric quantity related to the alternating-current voltage applied from the power source part to the direct-current motor. The rotation state detecting part detects at least one of a rotation angle, a rotation direction, and a rotation speed of the direct-current motor based on a change in an amplitude of an alternating-current component in the electric quantity detected by the energization detecting part. | 11-18-2010 |
20100289356 | MOTOR - The present invention provides, as one aspect, a motor including a rotor fixed to a rotating shaft, a stator provided around the outer periphery of the rotor via a gap, and a power converter which is connected to polyphase windings arranged in slots formed in the stator. The power converter performs control by which current from a DC power source is converted to polyphase alternating current which flows to the polyphase windings. The motor includes a housing which is fixed to the outer periphery of the stator via an insulating layer. The stator is connected to a positive electrode side bus, which is connected to a positive electrode of the DC power source, or a negative electrode side bus, which is connected to a negative electrode of the DC power source. | 11-18-2010 |
20100281901 | Air conditioner for vehicle - In an air conditioner for a vehicle, in a heating operation for heating a vehicle compartment, when heating capacity is obtained by flowing a coolant through an inside of an indoor heat exchanger, the coolant flows directly in the inside of the indoor heat exchanger to heat air to be supplied to the vehicle compartment. In contrast, when the heating capacity is not obtained by flowing the coolant through the inside of the indoor heat exchanger, the coolant flows through a first water-refrigerant heat exchanger and a refrigerant in a heat pump cycle circulates so that heat of the coolant is absorbed by the refrigerant in the first water-refrigerant heat exchanger, and the air is heated in the indoor heat exchanger by using heat of the refrigerant that has absorbed the heat of the coolant. | 11-11-2010 |
20100273605 | IN-VEHICLE POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM FOR VEHICLE - An in-vehicle power transmission apparatus is equipped with a motor-generator working as an engine to drive a vehicle and a power split device made up of a plurality of power split rotors. A first one of the rotors is coupled to a driven wheel of the vehicle, while a second one of the rotors is coupled to an accessory such as an air compressor of an air conditioner. The speed of the second rotor is controllable independently of that of the driven wheel. This eases restrictions on the supply of power produced by the generator-motor to the accessory. Alternatively, the rotors are so linked that when the speed of the first rotor is not zero (0), the speed of the second rotor has one of zero (0) and a value other than zero (0), thus ensuring the stability in supplying the power to drive the vehicle to the accessory. | 10-28-2010 |
20100271002 | DISCHARGE AMOUNT MEASURING DEVICE AND METHOD FOR ROTATIONAL ELECTRIC MACHINE - A discharge amount measuring device includes a power source, first and second sensors, a calibration wire, and a measuring portion. The power source applies a voltage to a coil of a rotational electric machine. The first sensor detects a current flowing through the coil. The calibration wire has an end connected to the coil. The second sensor detects a current flowing through the calibration wire. The measuring portion forms a calibration line based on a first waveform detected by the first sensor and a second waveform detected by the second sensor. The measuring portion calculates a discharge amount based on the calibration line. | 10-28-2010 |
20100270155 | GAS SENSOR ELEMENT, GAS SENSOR EQUIPPED WITH GAS SENSOR ELEMENT, AND METHOD OF PRODUCING GAS SENSOR ELEMENT - A gas sensor element has a solid electrolyte of an oxygen ion conductivity, a target gas electrode formed on one surface of the solid electrolyte, a reference gas electrode formed on the other surface of the solid electrolyte, a porous diffusion resistance layer through which the target gas passes to reach the target gas electrode, and a catalyst layer formed on an outer surface of the porous diffusion resistance layer. The target gas electrode is formed around the porous diffusion resistance layer. The catalyst layer contains noble metal catalysts. The noble metal catalysts contain at least rhodium and palladium. A content of rhodium is not less than 10 mass % and a content of palladium is not less than 20 mass % to the entire of the noble metal catalysts. | 10-28-2010 |
20100270154 | GAS SENSOR ELEMENT, GAS SENSOR EQUIPPED WITH GAS SENSOR ELEMENT, AND METHOD OF PRODUCING GAS SENSOR ELEMENT - A gas sensor element has a solid electrolyte with an oxygen ion conductivity, a target gas electrode formed on one surface of the solid electrolyte, a reference gas electrode formed on the other surface of the solid electrolyte, a porous diffusion resistance layer through which the target gas passes to reach the target gas electrode, and a catalyst layer formed on an outer surface of the porous diffusion resistance layer. Through the catalyst layer, the target gas is introduced to the inside of the gas sensor element. The target gas electrode is formed around the porous diffusion resistance layer. The catalyst layer contains noble metal catalysts. The noble metal catalysts contain at least rhodium and palladium. The noble metal catalysts have an average particle size of not less than 0.3 μm. | 10-28-2010 |
20100264760 | ELECTRIC ROTATING MACHINE - The electric rotating machine includes a rotor relatable around a rotating shaft disposed horizontally, a stator core formed with slots, and a stator coil constituted of in-slot portions each of which is accommodated in a corresponding one of the slots, and turn portions each of which connects corresponding adjacent two of the in-slot portions at a position outside the stator core. The turn portions form a coil end projecting axially outward from an end surface of the stator core at each of both axial end sides of the stator core. The coil end is formed in a cylindrical shape including an axial end surface of a flat shape, and inner and outer peripheral surfaces of a circular shape. The electric rotating machine further includes a coolant supply section to supply coolant to an upper part of the outer peripheral surface of the coil end. | 10-21-2010 |
20100263633 | FUEL INJECTION VALVE AND FUEL INJECTION APPARATUS - The injector body | 10-21-2010 |
20100259617 | Boundary line recognition apparatus - In a boundary line recognition apparatus, a boundary line candidate extracting part extracts boundary line candidates from image data obtained by an on-vehicle camera based on known image processing such as pattern matching and Hough transform. One or more kinds of boundary line feature calculating parts calculate one or more likelihoods of each boundary line candidate. The likelihood indicates a degree of probability to be the boundary line. A boundary line feature combining means multiplies the likelihoods of each boundary line candidate and outputs a combined likelihood. A boundary line candidate selecting part selects the boundary line candidate having a maximum likelihood as the boundary line. The boundary line feature calculating part further calculates the likelihood of the boundary line candidate using a dispersion of brightness and an internal edge amount, and changes the likelihood based on an additional likelihood obtained by a driving lane surface feature extracting part. | 10-14-2010 |
20100259121 | POWER TRANSMISSION DEVICE - A power transmission device for transmitting a driving force from a vehicle-mounted driving source to a vehicle-mounted rotary device includes a driving rotor mechanically coupled to the vehicle-mounted driving source via a belt, and a driven rotor disposed coaxially with the driving rotor and mechanically coupled to a drive shaft of the vehicle-mounted rotary device. Furthermore, the power transmission device is provided with a magnetic join portion disposed in at least one of the driving rotor and the driven rotor, and the magnetic join portion is adapted to transmit a rotary driving force from the driving rotor to the driven rotor by a magnetic force, while keeping a predetermined clearance between the driving rotor and the driven rotor. Thus, in the power transmission device, a natural frequency can be made much lower than a frequency of vibration generated from the vehicle-mounted rotary device in idling of a vehicle. | 10-14-2010 |
20100257722 | STATOR OF ELECTRIC ROTATING MACHINE - A method of manufacturing an electric rotating machine having a stator that includes a stator core having slots formed at an inner periphery thereof, and a stator winding constituted by conductive wires wound on the slots. The stator winding includes in-slot portions accommodated in the slots and turn portions each connecting each adjacent two of the in-slot portions outside the slots. The stator core includes a core member having at least three tooth portions extending in a radial direction of the stator core and a core back portion integrally connecting the tooth portions at a radially end side thereof. The core member is configured such that each of the first tooth portions folded toward the core back portion is capable of unfolding to extend between a corresponding adjacent two of the in-slot portions when the core member is at a predetermined axial position with respect to the stator winding. | 10-14-2010 |
20100251980 | Valve timing controller - A first one-way valve is provided in a first advance passage connecting a hydraulic pump to a control advance chamber. A second one-way valve is provided in a first retard passage connecting the hydraulic pump to a control retard chamber. A first control valve is provided in a second advance passage to bypass the first one-way valve for communication of the first advance passage. A second control valve is provided in a second retard passage to bypass the second one-way valve for communication of the first retard passage. The first control valve operates by the pilot pressure to close the second advance passage at advance controlling and opening it at retard controlling. The second control valve operates by the pilot pressure to close the second retard passage at retard controlling and open it at advance controlling. | 10-07-2010 |
20100250100 | Mount structure of fuel injection valve and fuel injection system - A combustion chamber side end portion of a fuel injection valve is placed at a location that overlaps with an imaginary plane, which is perpendicular to a center axis of a cylinder and extends along a portion of a wall surface of an intake port where an intake valve protrudes, or is projected out from the imaginary plane toward a combustion chamber. Alternatively, a center of a fuel injecting side end port of the fuel injection valve, which injects fuel into intake air that flows in a branch port branched from the intake port, may be placed on the center axis side of the intake valve in a radial direction of the cylinder. Further alternatively, an upstream side fuel injection valve may inject fuel into intake air that flows in the intake port, and a downstream side fuel injection valve may inject fuel into intake air that flows in the branch port branched from the intake port. Alternatively, an injection quantity of fuel may be controlled for each of fuel injection valves, which injects fuel into intake air that flows in the corresponding branch port branched from the intake port. | 09-30-2010 |
20100245574 | Vehicle periphery display device and method for vehicle periphery image - An imaging unit photographs an image of a periphery of the vehicle. An object detection unit obtains image information related to a brightness or a color of the image and position information on the obtained image from the image and detects object from the image information according to a specific feature of the image. A storing unit prestores a vehicle image and history data, which include the image information associated with the position information. A graphic unit overlaps the vehicle image and an image produced according to the history data and converts the overlapped image to be viewed from a predetermined viewpoint. A peripheral image display region indicates a present periphery of the vehicle. A history display region is adjacent to the peripheral image display region for indicating the converted image and the detected object at a position according to the position information. | 09-30-2010 |
20100245192 | Antenna apparatus - An antenna apparatus includes: a ground substrate; and a loop antenna having first and second polarized wave surfaces, which are perpendicular to the substrate. The substrate provides an antenna, which is excited and vibrated together with the loop antenna. The antenna has a first polarized wave component in parallel to the first polarized wave surface and a second polarized wave component in parallel to the second polarized wave surface. A polarized wave ratio between the first polarized wave component and the second polarized wave component in the substrate is substantially equal to a polarized wave ratio between the first polarized wave surface and the second polarized wave surface in the loop antenna. | 09-30-2010 |
20100243446 | GAS CONCENTRATION DETECTING SYSTEM AND GAS SENSING DEVICE HAVING THE SYSTEM - A gas concentration detecting system has a first cell generating electric current at first oxygen sensitivity, a second cell generating current at second oxygen sensitivity and a reference cell generating current at reference oxygen sensitivity. The cells have the same structure except that the second cell has a catalyst layer for removing hydrogen as from measured gas containing oxygen gas. The system determines first corrected current from current of the first cell exposed to measured gas, current of the first cell exposed to inspection gas containing oxygen gas at reference concentration and reference cell current of the reference cell exposed to inspection gas, determines second corrected current from current of the second cell exposed to measured gas, current of the second cell exposed to inspection gas and the reference cell current, and detects concentration of hydrogen gas in measured gas from the corrected currents. | 09-30-2010 |
20100237174 | FUEL INJECTOR - A fuel injector has a plurality of fuel injection ports including first injection ports and second injection ports. Injection-port axes of the first injection ports extend to a first space in a combustion chamber. Injection-port axes of the second injection ports extend to a second space in a combustion chamber. An interval of the injection-port axes between adjacent first injection ports is shorter than an interval of the injection-port axes between the first injection port and the second injection port which are adjacent to each other. | 09-23-2010 |
20100232478 | Receiver for spread spectrum communication - A receiver for spread spectrum communication includes a receiver for receiving a wireless signal, a demodulator for demodulating the wireless signal into a spread spectrum signal, a correlation value calculator for calculating a correlation value between the spread spectrum signal and a spreading code having a predetermined number of chips, a synchronization detector for detecting a synchronization point between the spread spectrum signal and the spread signal based on the correlation value, a despreading device for despreading the spread spectrum signal based on the synchronization point, a noise level detector for detecting a noise level of the wireless signal, and a code number setting device for determining the number of chips of the spreading code in such a manner that there is a positive correlation between the noise level and the number of code portions. | 09-16-2010 |
20100229813 | ALUMINA SINTERED BODY AND METHOD FOR MANUFACTURING SAME, AND SPARK PLUG COMPRISING THE ALUMINA SINTERED BODY AS AN INSULATOR - An alumina sintered body comprises alumina crystals as a main phase and a grain boundary phase made up of crystalline Y | 09-16-2010 |
20100220551 | Physical object detection system - In an obstacle detection system, a wave transmitted by a transmitting element and received by receiving elements as a receiving wave includes extraneous waves, which are reflection waves from other than an obstacle, and obstacle reflection waves from an obstacle. It is determined that, an obstacle is present, if the reflection waves are detected as having an amplitude (voltage) greater than a threshold level and a reception time difference between time points at which the amplitude exceeds threshold level at the receiving elements is less than a predetermined time. | 09-02-2010 |
20100220550 | Obstacle detection apparatus and method for detecting obstacle - A transmission and reception device is located at a predetermined height on a movable object and directed toward an outside. The transmission and reception device includes a transmission unit for repeatedly transmitting sensing waves at a predetermined interval and a reception unit for receiving reflective waves of the sensing waves from a detected object. A peak value detecting unit detects peak values of the received reflective waves and stores the detected peak values. A difference arithmetic unit calculates a difference in the detected peak values with movement of the movable object closer to the detected object. An object determination unit determines the detected object to be a near-road-surface obstacle, which is close to a road surface, when the difference is a negative value. The object determination unit determines the detected object to be an other obstacle than the near-road-surface obstacle when the difference is a positive value. | 09-02-2010 |
20100212634 | DEVICE AND METHOD FOR CONTROLLING IGNITION TIMING OF INTERNAL COMBUSTION ENGINE - An engine ECU executes a program that includes the steps of: calculating (S | 08-26-2010 |
20100201818 | Vehicle periphery displaying apparatus - A vehicle periphery displaying apparatus for a vehicle is disclosed. The apparatus includes: an imaging device for capturing a periphery image; a storage medium for storing history data comprising one of the periphery image and information on an object-in-periphery, the storage medium pre-storing a vehicle image; a display screen having a real-time displaying part for displaying thereon the periphery image with distortion of the periphery image being uncorrected, and a history displaying part for displaying thereon the vehicle image and a history image being produced based on the history data; and a drawing section configured to superimposingly draw the vehicle image and the history image provided with the distortion that the periphery image has, such that the object-in-periphery shown in the history image is continuously connected to that shown in the periphery image. | 08-12-2010 |
20100200427 | SOLID ELECTROLYTE, METHOD OF PRODUCING THE SOLID ELECTROLYTE, AND GAS SENSOR EQUIPPED WITH GAS SENSOR ELEMENT USING THE SOLID ELECTROLYTE - A solid electrolyte is made of zirconia grains containing yttria and alumina grains dispersed in the zirconia grains. In the solid electrolyte, the yttria content per zirconia content is within a range of 2 to 10 mol. %, the relative density is not less than 93%, and the average particle size Rz of the zirconia grains is not more than 2 μm, an average particle size Ra of the alumina grains is not more than 1 μm. The average particle size Ra of the alumina grains is smaller than the average particle size Rz of the zirconia grains. An average distance value A | 08-12-2010 |
20100185351 | HYBRID VEHICLE - A hybrid vehicle includes an engine that is an internal combustion engine, a motor generator that is a rotating electric machine used together with the engine for driving the vehicle, an output shaft transmitting power to a wheel, a transmission member coupled to the output shaft, a power split device splitting the output from the engine to the motor generator and transmission member, a detection device detecting irregularities on a road, and a control unit reducing, when the detected result by the detection device indicates generation of periodic torque variation at the output shaft, the output from the engine based on the detected result. Accordingly, a hybrid vehicle that does not require a torque limiter is provided. | 07-22-2010 |
20100182209 | Helical antenna and in-vehicle antenna including the helical antenna - A helical antenna includes a ground plate, a first helical portion spirally wound perpendicular to the plate, a second helical portion spirally wound perpendicular to the plate and surrounding the first helical portion radially outward of the first helical portion, and a feeder circuit. The circuit includes an oscillator, a divider connected to the oscillator, a first phase shifter connected between a first output terminal of the divider and a feeding point of the first helical portion, and a second phase shifter connected between a second output terminal of the divider and a feeding point of the second helical portion. Length of one turn of the first helical portion is equal to a result of multiplication of a wavelength of oscillation of the oscillator by N. Length of one turn of the second helical portion is equal to a result of multiplication of the wavelength by M (M>N). | 07-22-2010 |
20100177829 | Receiving device including impedance control circuit and semiconductor device including impedance control circuit - A receiving device includes a receiving circuit and an impedance control circuit. The receiving circuit receives a signal transmitted through a communication line. The impedance control circuit is coupled with the receiving circuit and has a detecting part. The detecting part detects a physical value of the signal and the physical value includes at least one of a voltage, an electric current, and an electric power. The impedance control circuit changes an input impedance based on the detected value so that a ringing of the signal is reduced. | 07-15-2010 |
20100170349 | Force sensing device - The force sensing device includes a deformable member having portions arranged to make a pair with respect to the Z-axis. Three sets of strain detecting elements are formed on the deformable member for detecting deformations of the deformable member caused by a linear force in the X-axis, a linear force in the Y-axis and a rotational force about the Z-axis. The force sensing device includes a connecting member which connects between the pair of portions of the deformable member, and between the deformable member and a shaft of a manipulatable member. The force sensing device can be manufactured with easy wiring work and can detect the applied force in three degrees of freedom, including the linear force in the X-axis, the linear force in the Y-axis and the rotational force about the Z-axis. | 07-08-2010 |
20100163006 | EXHAUST GAS RECIRCULATION APPARATUS - An EGR control device is provided in a branched-off pipe portion of a recirculation pipe unit. The EGR control valve is opened during an exhaust gas recirculation period, which is a part of a valve-opening period of an intake valve, so that exhaust gas is re-circulated into a combustion chamber during the exhaust gas recirculation period. As a result, swirl flow of the re-circulated exhaust gas to be formed in the combustion chamber is increased to improve ignitionability and to facilitate combustion of air-fuel mixture. | 07-01-2010 |
20100162794 | DEVICE AND METHOD FOR DETERMINING KNOCKING OF INTERNAL COMBUSTION ENGINE - An engine ECU executes a program including the steps of: calculating an absolute value ΔS(I) of the deviation of the vibration waveform detected by a knock sensor and a knock waveform model from each other at each crank angle; when ΔS(I) greater than threshold value ΔS( | 07-01-2010 |
20100162793 | DEVICE AND METHOD FOR DETERMINING KNOCKING OF INTERNAL COMBUSTION ENGINE - An engine ECU executes a program including calculating a correlation coefficient by dividing the sum of respective absolute values, which are each a difference between a magnitude in an engine vibration waveform and a magnitude in a knock waveform model for every crank angle, by an area corresponding to magnitudes equal to or larger than a positive reference value in the knock waveform model, and determining whether or not knocking has occurred based on the correlation coefficient. | 07-01-2010 |
20100157302 | LIQUID FUEL PROPERTY DETECTION SYSTEM - A liquid fuel property detection apparatus includes a fuel passage, a light emitting device for emitting a light including a plurality of predetermined wavelengths toward the fuel in the passage, a light receiving device for receiving the light passing through the fuel, and a calculation unit for calculating the concentration of at least one of aroma, paraffin and olefin, which are hydrocarbon component components contained in the fuel. The calculation unit calculates the concentration of a specific component, which is one of aroma, paraffin and olefin, based on the reference transmittance of light in the specific component and the actual transmittance calculated from the amount of light emitted by the light emitting device and the amount of light received by the light receiving device with respect to each wavelength of the light. | 06-24-2010 |
20100155240 | GAS SENSOR ELEMENT AND GAS SENSOR EQUIPPED WITH THE SAME - A gas sensor element is composed of a sensor section, a heater section, and a porous protective layer. The sensor section is composed of a solid electrolyte layer and a pair of electrodes. The heater section heats the sensor section to activate it. The porous protective layer covers surfaces of the sensor section and the heater section of the gas sensor element in a gas sensor which is exposed to a target detection gas to be detected. The porous protective layer is made of a mixture of hydrophobic heat resisting particles having a contact angle of not less than 75° to a drop of water, and the hydrophilic heat resisting particles having a contact angle not more than 30° to a drop of water. A gas sensor equipped with the above gas sensor element is also disclosed. | 06-24-2010 |
20100139606 | BAFFLE PLATE - A baffle plate includes a discharge portion that discharges lubricating oil that has dropped onto the baffle plate, to an oil pan. The discharge portion extends to be inclined in a direction in which cylinders are arranged, with respect to a rotation central axis of a crankshaft. The discharge portion includes a guide groove in which an upstream portion in a rotational direction of the crankshaft is located under a counter weight, and a downstream portion in the rotational direction of the crankshaft is located under a crank bearing. The discharge portion includes a discharge hole that is formed in the downstream portion of the guide groove in the rotational direction, and that provides communication between the oil pan and an engine block. | 06-10-2010 |