Class / Patent application number | Description | Number of patent applications / Date published |
123395000 | Open loop condition responsive | 88 |
20080289601 | Method for Controlling the Opening of a Throttle Valve Body Assembly - The invention concerns a method for controlling the opening of an internal combustion engine throttle valve body assembly, characterized in that it includes the following steps: specifically mapping the engine, limiting the opening angle of the throttle valve body assembly, and defining particular operating points requiring replacement of the usual mapping by the specific mapping. | 11-27-2008 |
20090056672 | AIRFLOW-BASED CRANK THROTTLE CONTROL IN A TORQUE-BASED SYSTEM - A method of torque-based control for an internal combustion engine may include determining a desired airflow rate into an intake manifold of the internal combustion engine during an engine start condition, determining a torque limit for a torque-based engine control module based on the desired airflow rate, and regulating engine torque based on the determined torque limit. | 03-05-2009 |
20090194068 | FLOW CONTROLLING METHOD FOR AN AUXILIARY INTAKE FLOW PASSAGE - A flow controlling method for an auxiliary intake flow passage for use in a power unit which includes a starter clutch which is automatically engaged and disengaged in response to the engine speed. An intake air control valve (IACV) carries out changeover from water temperature dependent control (open loop control of adjusting the flow rate of the auxiliary intake flow passage in response to the warming up state of an engine) to target engine speed feedback control when the actual engine speed NE [rpm] drops to a clutch disengagement engine speed NEout (engine speed at which the centrifugal clutch is disengaged) (S | 08-06-2009 |
20110139117 | SPEED CONTROL SYSTEMS AND METHODS FOR INTERNAL COMBUSTION ENGINES - An engine control system includes a mode selection module that is configured to select an operating mode from one of an open loop control mode, a torque control mode, and a speed control mode based on an engine speed and a driver input. An axle torque arbitration (ABA) module generates ABA predicted and immediate torque requests based on the driver input. A speed control (SC) module generates a first set of SC predicted and immediate torque requests based on engine speed. A propulsion torque arbitration (PTA) module generates PTA predicted and immediate torque requests based on one of the ABA predicted and immediate torque requests and the first set of SC predicted and immediate torque requests based on the operating mode. A torque output control module controls output torque of an engine based on the PTA predicted and immediate torque requests. | 06-16-2011 |
20110239985 | METHOD AND APPARATUS FOR MANUAL ACCELERATION IN MOTOR VEHICLES - A method and apparatus for the acceleration of a motor vehicle comprising a manually operable control member, a throttle pedal (4) actuatable by the control member and a computer (3). The control member may comprise a known-per-se throttle ring. There is provided a speed sensor (2) to detect the speed of the motor vehicle and to generate a corresponding speed signal (V). Computer (3) has stored therein transmission ratio curves (V1, V2, V3 . . . Vn) each applicable to a different vehicle speed, with each such transmission ratio curve (V1, V2, V3 . . . Vn) representing a ratio of transmitting the amount of actuation of the control member to the applicable stroke of throttle pedal (4). Computer (3) uses the speed signal (V) provided by speed sensor (2) to select one of transmission ratio curves (V1, V2, V3 . . . Vn) for actuating throttle pedal (4) with a stroke corresponding to the transmission ratio curve (V1, V2, V3 . . . Vn) selected. | 10-06-2011 |
20110247588 | APPARATUS AND METHOD FOR CONTROLLING THE SPEED OF AN INTERNAL COMBUSTION ENGINE - The apparatus according to the invention comprises a controller for forming a speed signal arranged to receive speed measurement data of the internal combustion engine as well as speed reference data. The apparatus additionally comprises a module for forming the internal speed reference value instead of the speed reference value set to be used when forming the control signal. | 10-13-2011 |
20120312276 | ENGINE SPEED CONTROL MODE SWITCHING METHOD AND ENGINE SPEED CONTROL DEVICE - An electronic control unit initializes, when it is determined that a switching request has been input for switching to the droop control or to the isochronous control, a value of an integral term used in PID control that is performed in the isochronous control. A target fuel injection amount set prior to switching is used for initialization. Then, the ECU calculates, using a predetermined arithmetic expression, an accelerator opening degree for use after switching of the engine speed control mode, as a virtual accelerator opening degree. The accelerator opening degree corresponds to a speed state of an engine at an accelerator opening degree used during performance of the engine speed control mode used immediately prior to switching. If the calculated virtual accelerator opening degree is greater than an actual accelerator opening degree, the ECU switches the engine speed control mode and performs isochronous control using the virtual accelerator opening degree. | 12-13-2012 |
20130008409 | FUEL SYSTEM DIAGNOSIS VIA FUEL PRESSURE SWITCH - An engine system for a vehicle and its method of operation are provided. In one embodiment, a control system is configured to indicate a clogging of a fuel filter based on a period of time that a fuel pressure switch remains in a low pressure state. In some embodiments, the control system may respond to an indicated clogging of the fuel system by limiting one or more of fuel pressure, fuel flow rate, and vehicle speed. By limiting the flow rate and/or the pressure at which fuel is delivered to the engine during conditions when the low pressure fuel sub-system is unable to provide sufficient fuel pressure and/or flow, degradation and/or damage to the fuel system, including the high pressure pump, may be reduced or eliminated. | 01-10-2013 |
20130276752 | METHOD FOR OPERATING A SPARK IGNITION INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO CYLINDERS - A method is disclosed for operating a spark ignition engine, comprising: discharging exhaust gases via an exhaust system comprising exhaust pipes from the at least two cylinders coming together to form an exhaust manifold; and initiating autoignition with exhaust gas from a first, exhaust-gas-supplying cylinder, which is discharged from the first cylinder into the exhaust system, the exhaust gas is introduced into an adjacent, exhaust-gas-receiving cylinder via the exhaust system. Exhaust gas from the first cylinder mixes with the air-fuel mixture of an adjacent cylinder raising the temperature therein. Under high loads the higher temperature and density of the aircharge is suitable to undergo autoignition. | 10-24-2013 |
20130291831 | METHOD AND DEVICE FOR THE SEPARATE LUBRICATION OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a method and device, with the aid of which the monitoring of the oil supply to an internal combustion engine, which operates according to a two-stroke cycle, can be optimized. | 11-07-2013 |
20130298869 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO CYLINDERS - The invention relates to a method for operating an internal combustion engine that has at least two cylinders ( | 11-14-2013 |
20130319371 | METHOD AND SYSTEM FOR ADJUSTING ENGINE THROTTLES - An engine system and method for operating an engine including a central throttle and a port throttle is disclosed. In one example, the central throttle and port throttle are adjusted to improve transitions between throttle control modes. The approach may be particularly beneficial for turbocharged engines. | 12-05-2013 |
20130327292 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - A method for operating an internal combustion engine, which includes one or more cylinders, of which individual cylinders can be deactivated and, in an optimized manner with regard to time, reactivated again in order to influence a torque output by the internal combustion engine. To further optimize, with regard to time, the provision of torque during the operation of an internal combustion engine, a time delay and/or a delay in degrees crank angle or revolutions of the internal combustion engine between a triggering and the reactivation of a deactivated cylinder is taken into consideration for the reactivation of the deactivated cylinder. | 12-12-2013 |
20130340708 | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method for controlling an internal combustion engine ( | 12-26-2013 |
20130340709 | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method for controlling an internal combustion engine, comprising a number of cylinders and wherein the air mass trapped inside each cylinder is adjusted by means of a respective intake valve; the control method includes determining the total target torque; determining a target number of active cylinders; determining a target supercharge pressure such to guarantee the total target torque and controlling the intake valves of the target number of active cylinders ( | 12-26-2013 |
20140048038 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An object of this invention is to accurately detect a sensitivity abnormality of an in-cylinder pressure sensor over a wide operating range without using other sensor outputs or the like. Based on only the output of an in-cylinder pressure sensor | 02-20-2014 |
20140116381 | ACCELERATOR APPARATUS FOR VEHICLE - An accelerator pedal is urged in an accelerator closing direction by a hysteresis spring and a return spring. A first increase rate is obtained by dividing an urging force of the hysteresis spring exerted in an accelerator-full-opening position of the accelerator pedal by the urging force of the hysteresis spring exerted in an accelerator-full-closing position of the accelerator pedal. A second increase rate is obtained by dividing an urging force of the return spring exerted in the accelerator-full-opening position of the accelerator pedal by the urging force of the return spring exerted in the accelerator-full-closing position of the accelerator pedal. The second increase rate is smaller than the first increase rate. | 05-01-2014 |
20140182547 | CONTROL METHOD AND SYSTEM FOR OIL PUMP OF ENGINE PROVIDED WITH VARIABLE VALVE LIFT APPARATUS - A method of controlling an oil pump of an engine with a variable valve lift apparatus includes: detecting the operation status of a vehicle; determining whether mode change conditions of a variable valve lift apparatus are satisfied; determining whether the mode change condition of the variable valve lift apparatus is a condition for changing from a low lift to a high lift; comparing whether the current oil hydraulic pressure is larger than the current necessary hydraulic pressure, when the mode change condition of the variable valve lift apparatus is a condition for changing from a low lift to a high lift; and increasing oil pressure by controlling the oil pump, when the current oil hydraulic pressure is not larger than the current necessary hydraulic pressure. | 07-03-2014 |
20150053176 | METHODS AND SYSTEMS FOR AIR FUEL RATIO CONTROL - Various methods and systems for an engine driving an electrical power generation system are provided. In one embodiment, an example method for an engine driving an electrical power generation system includes adjusting an engine speed in response to a relationship between oxygen and fuel while maintaining a power transmitted to the electrical power generation system. | 02-26-2015 |
20150377163 | INTERNAL COMBUSTION ENGINE CONTROLLER - A controller for an engine controls a throttle opening degree. The controller includes a target opening degree calculating section that selects either a primary request value for a throttle opening degree that corresponds to a torque request or a secondary request value that corresponds to another request and that calculates a target throttle opening degree from the selected one of the first and secondary request values. If the primary request value has been selected, an abnormality occurrence determining section determines whether or not an abnormality has occurred, in accordance with a magnitude of a deviation of the primary request value from the target throttle opening degree. If the secondary request value has been selected, the abnormality occurrence determining section determines whether or not an abnormality has occurred, in accordance with whether or not the target throttle opening degree is greater than or equal to a predetermined upper limit value. | 12-31-2015 |
20160201582 | Prime Mover Control Device for Work Vehicle | 07-14-2016 |
20180023525 | SEA WATER INFLOW PREVENTION DEVICE FOR A MARINE ENGINE | 01-25-2018 |
123396000 | Resistance or override acts on input connection to regulator | 6 |
20080251048 | Method for sensing and clearing throttle plate obstruction - An electronic throttle control system and method for detecting a throttle plate obstruction when the ignition key is on and the engine is either not running or running, and for clearing the throttle plate obstruction before a fault setting is set by the ECU. | 10-16-2008 |
20100059017 | METHOD AND DEVICE FOR DETERMINING AN OPTIMIZED EMERGENCY RUNNING FUNCTION IN A FAULT-AFFLICTED ENGINE OF A MOTOR VEHICLE - In a motor vehicle having an emergency running device, there is the problem that, in the event of certain fault symptoms occurring, an emergency running function is initiated and the torque of the engine is in the process limited to an unsuitable low value. In the worst case, this can lead to insufficient acceleration, for example during an overtaking maneuver, and to an accident occurring. It is therefore proposed that the determination of an optimized emergency running function be defined as a function both of the present driving state of the motor vehicle and also of the type of fault symptom depending on which the risk and the level of danger are graded into classes and an optimized emergency running function is then determined and initiated. Thus, sufficient torque and rotational speed can be provided for reliable vehicle control even in an unfavorable traffic situation without damaging the endangered components. | 03-11-2010 |
20100186714 | Fuel saving spring assembly, kit, and method - A spring assembly is attached to an accelerator pedal for enhancing fuel economy of a motor vehicle. The combination of operable elements thus comprises an accelerator pedal, a conical compression spring, and fastening hardware to attach the compression spring to the pedal. An optional spring seat is included for certain installations. The pedal has an aperture extending between its upper and lower pedal surfaces. The spring has an upper spring end and a lower spring end. The fastening hardware attaches said spring to said pedal, and comprises a bolt, a flat washer, a lock washer, and a nut. The spring is compressible intermediate the lower pedal surface and a fixed surface underlying the pedal such as the floor of an automobile. The spring thereby provides non-linear resistance as a function of compressive spring displacement via the pedal for improving fuel economy of a motor vehicle. | 07-29-2010 |
20120090575 | ELECTRONIC THROTTLE CONTROL APPARATUS - An electronic throttle control apparatus has a construction which does not use a mechanical mechanism to restrict an operating angle of an electronic throttle valve, and continues motor control so as to prevent rapid opening and closing of the electronic throttle valve, even if an angle detection unit becomes abnormal. Upon detection of an abnormality, a control unit ( | 04-19-2012 |
123397000 | Shutdown safety device | 2 |
20120240899 | ENGINE SYSTEM HAVING FAILURE-PROTECTED AIR SHUTOFF CONTROL - An engine system is disclosed. The engine system may have an engine, an intake duct, and a valve disposed within the intake duct and movable between a flow-passing first position, and a flow-blocking second position. The engine system may also have an actuator configured to move the valve from the second position toward the first position, and a biasing element configured to move the valve from the first position toward the second position. The engine system may additionally have a sensor configured to sense an operating condition of the engine, and a controller. The controller may be configured to receive an input indicative engine activation, and to activate the actuator based on the input. The controller may also be configured to make a determination that the operating condition of the engine has deviated from a desired operating condition, and to deactivate the actuator based on the determination. | 09-27-2012 |
20150315983 | METHOD AND APPARATUS FOR SHUTTING DOWN AN ENGINE - There is provided a method of shutting down an engine, the engine having an air intake, and the method having the steps of attaching a valve to the air intake, the valve having an open position that allows air to pass into the air intake; using one or more sensors, detecting one or more predetermined engine conditions indicative of a runaway state; electromagnetically actuating the valve to move to a closed position preventing air from passing into the air intake once the one or more predetermined engine conditions have been detected; and causing the valve to return to the open position once a predetermined safe state has been reached. | 11-05-2015 |
123399000 | Having an electrical device between input and speed regulator | 56 |
20080223337 | Throttle apparatus embedding electronic control unit therein - A throttle apparatus embedding an electronic control unit in which a circuit board of the electronic control unit is embedded within a throttle body and a connector for connecting to an external portion connected to a terminal provided in the circuit board protrudes from an outer wall of the throttle body in a direction approximately along a terminal side of the circuit board surface from one side line of the circuit board, wherein the circuit board is storable within the throttle body by selecting an optional mounting direction from at least two or more directions having different angles on the same plane around a center portion of the circuit board, and an insertion portion capable of protruding the connector to an external portion through an outer wall of the throttle body is provided at each of corresponding positions of the outer wall. | 09-18-2008 |
20080236543 | ACCELERATOR POSITION SENSOR ARRANGEMENT STRUCTURE FOR MOTORCYCLE - To provide an accelerator position sensor arrangement structure for a motorcycle that can prevent an increased vehicle-width without change of operational feeling of a throttle. An accelerator position sensor is connected to a throttle grip via a pair of throttle cables and disposed externally of main frames, of a body frame, extending from a head pipe toward the rearward of a vehicle body. | 10-02-2008 |
20080236544 | DRIVING AMOUNT CONTROLLER - A driving amount controller for reducing the response delay or erroneous deviation in the control of a driving amount of a controlled system, for example, in the control of the opening of a throttle valve. When a target opening DTHR is varied starting from the condition where the throttle valve is stopped, an ECU | 10-02-2008 |
20080236545 | DRIVING AMOUNT CONTROLLER - A driving amount controller is provided for a vehicle. An ECU on the vehicle reduces a damping output Udamp when the deviation e between the target opening DTHR of the throttle valve and the actual opening DTH is near zero or when a switching function value σ is near zero. This makes it possible to reduce the damping output Udamp immediately after the start of, or immediately before the end of, the control of the opening of the throttle valve when the deviation e or the switching function value σ is near zero, and to realize a high response performance as to the control of the actual opening DTH of the throttle valve. | 10-02-2008 |
20080245338 | Method and device for optimizing the consumption in a motor vehicle - A method for consumption-optimized operation of an internal combustion engine of a motor vehicle is described, an engine output of the internal combustion engine being set as a function of a position of a gas pedal according to a manipulated variable, the gas pedal being adjustable in a first mechanically defined adjustment range between an initial position and a specific gas pedal position, the internal combustion engine being controlled with a consumption-optimized engine output with regard to the instantaneous engine speed by adjusting the gas pedal to the specific gas pedal position, the consumption-optimized engine output causing a minimal fuel consumption at the instantaneous engine speed. | 10-09-2008 |
20080257308 | Electronically Controlled Throttle Valve Unit - An electronically controlled throttle valve unit includes a valve shaft supported by a throttle body, a throttle valve provided on the valve shaft rotatably therewith, an actuator for controlling the valve shaft, and a mechanical valve opening/closing mechanism. The mechanical valve opening/closing mechanism comprises: a valve lever provided on the valve shaft rotatably therewith; a cam lever supported rotatably with respect to the valve shaft so as to be directly operated through a throttle operation; and a link lever supported rotatably by the throttle body and transmitting a rotation of the cam lever in a direction of opening the throttle valve to the valve lever so as to rotate the valve lever and the valve shaft in a throttle valve opening direction with a predetermined rotation angle characteristics. | 10-23-2008 |
20080283024 | Haptic Device In A Vehicle And Method Thereof - A system and method for providing a haptic device in a vehicle. The system comprises a foot operated pedal of a vehicle. A sensor is coupled to the pedal and is configured to sense a position of the pedal during use. The sensor is configured to output a sensor signal associated with the position of the pedal. A processor is coupled to the sensor and is configured to receive the sensor signal. The processor outputs a control signal upon the pedal moving past a threshold position. An actuator is coupled to the processor, wherein the actuator is configured to output a haptic feedback force to the pedal upon receiving the control signal from the processor. | 11-20-2008 |
20090000594 | CONTROL METHOD IN THE CASE OF A FAULT IN AN INTERNAL COMBUSTION ENGINE FITTED WITH A SERVO-ASSISTED BUTTERFLY VALVE - Control method in the case of a fault in an internal combustion engine; the control method provides for the phases of: cyclically checking the correct functioning of a connection between an electronic control unit and an electric drive of an electric actuator coupled to a butterfly valve to control the position of the same butterfly valve, switching off the electric drive in the case of interruption in the connection between the electronic control unit and the electric drive so that the butterfly valve sets itself in a predefined limp-home position, and piloting the engine in the case of interruption in the connection between the electronic control unit and the electric drive to keep the number of revs constant and equal to a predefined emergency value. | 01-01-2009 |
20090007884 | DUAL THROTTLE ASSEMBLY WITH ELECTRONIC OVERRIDE - An intake power control for an engine includes an electrically operable actuator coupled to a first throttle plate. Movement of the electrically operable actuator directly causes movement of the first throttle plate. A manually operable actuator is coupled to the electrically operable actuator, and movement of the manually operable actuator selectively causes movement of the first throttle plate. A linkage couples the first throttle plate to a second throttle plate of a second throttle body. The linkage is movable in response to movement of the first throttle plate to synchronize the movement of the second throttle plate with the movement of the first throttle plate. | 01-08-2009 |
20090071437 | STRADDLE TYPE VEHICLE - A straddle type vehicle includes a protrusion which is displaced together with a throttle valve, a lever pulley which is displaced in response to the rotation of a throttle grip, a spring and a control device. The spring generates elastic force to return the protrusion to a first original position when the lever pulley is in a second original position. The spring maintains the lever pulley in the second original position by being elastically deformed until the protrusion reaches a predetermined position in which the protrusion is displaced from the first original position in such a direction that the throttle valve opens when the lever pulley is in the second original position. The control device opens the throttle valve by displacing the protrusion until the protrusion reaches the predetermined position in a gear shift change when the throttle grip is fully closed. | 03-19-2009 |
20090084352 | Intake charge-regulating apparatus for an internal combustion engine, and engine incorporating same - An intake charge regulating apparatus for an engine includes a throttle body having a throttle bore formed therein for communicating with an intake port, and a throttle valve for controlling flow through the throttle bore. A throttle-driving mechanism includes an electric motor and a transmission mechanism for decelerating a driving force of the electric motor and for transmitting the driving force to the throttle valve. A camshaft sprocket is fixed to an end portion of a camshaft, which is included in a valve train for driving intake and exhaust valves in a cylinder head to open and close. The throttle-driving mechanism is arranged opposite a side where the camshaft sprocket is located in an axis direction of the crankshaft. The electric motor is disposed between the throttle body and the cylinder head in top plan view. | 04-02-2009 |
20090120409 | Engine speed control apparatus - The invention achieves a good engine speed control without increasing a cost and a lowering a reliability of an apparatus in a general purpose engine. In a rotating speed control apparatus of an engine in which an electronic control unit ( | 05-14-2009 |
20090165745 | HALL EFFECT ACCELERATOR MODULE - An accelerator module for an electric vehicle, including a rotor actuator designed to hold a magnet in one end and to provide a drive interface with the vehicle at the other end. The accelerator module employs a Hall Effect chip configured to produce a variable voltage output in proportion to the relative locations of the magnet and the Hall Effect chip, such that when the rotor actuator is caused to rotate, the magnet is rotated across the Hall Effect chip. The Hall Effect chip includes a Hall Effect sensor, which senses differences in magnetic fields. When the magnet is passed across the Hall Effect sensor, the magnetic field will change in proportion to the amount of rotation of the rotor actuator. The variable voltage produced by the Hall Effect chip may then be translated into variable acceleration for the vehicle. | 07-02-2009 |
20090199815 | Vehicle and Motor Controller for Vehicle - A motorcycle includes an engine in which angle intervals of crank angles respectively corresponding to expansion strokes of a plurality of cylinders are unequal, a motor configured to generate a torque applied to a driving power transmission system including a crankshaft of the engine, and a motor controller configured to drive the motor to add the torque of the motor to a torque of the engine. | 08-13-2009 |
20090205611 | ELECTRONICALLY-CONTROLLED THROTTLE BODY - An electronically-controlled throttle body includes a throttle valve having a valve disc, fixed on a valve shaft rotatably supported in a body inside which an air-intake passage is formed, for varying an opening area of the air-intake passage; a reduction gear mechanism connected to the valve shaft of the throttle valve; and a motor connected to the reduction gear mechanism; rotational drive power from the motor is transmitted to the valve shaft via the reduction gear mechanism, and the opening area of the air-intake passage is varied by rotatably moving the valve disc. The reduction gear mechanism includes a planetary gear mechanism and a spur gear reduction gear mechanism, rotational drive power from the motor is decelerated by the planetary mechanism, and the decelerated rotational drive power is further decelerated by the spur gear reduction gear mechanism, and then transmitted to the valve shaft. | 08-20-2009 |
20090283071 | Method and Vehicle Electric System of a Motor Vehicle With a Pre-Emptive Temporary Increase in the Idling Speed of the Internal Combustion Engine - A method is provided for reducing the energy consumption of a motor vehicle having an internal combustion engine and at least one vehicle electric system, to which at least a first electric consumer is connected. In order to achieve an efficient vehicle electric system with a reduced energy consumption, the internal combustion engine is operated in a first operating mode at a first speed. In a second operating mode, the internal combustion engine is operated at a second speed that is higher than the first speed. A driving situation detection device provided in the vehicle recognizes an imminent specific driving situation on the basis of the previous behavior of the driver in controlling the vehicle and/or the behavior of the vehicle in advance, and initiates a switch in the internal combustion engine from the first operating mode to the second operating mode. | 11-19-2009 |
20090288635 | ELECTRONIC THROTTLE CONTROL APPARATUS - In order to obtain an electronic throttle control apparatus capable of forcibly turning a throttle valve from a full-close position toward an opening side by a predetermined opening degree to place the throttle valve in a desired opening degree position, the electronic throttle control apparatus includes: a throttle opening degree sensor for detecting an opening degree position of a throttle valve; a throttle actuator that opens and closes the throttle valve; a first target opening degree position setting unit for setting a first target opening degree position; throttle opening degree feedback control unit that performs feedback control on the throttle valve; a throttle valve full-close position judgment unit for judging whether or not the throttle valve is being urged in a direction to be closed at a full-close position; a second target opening degree position setting unit for setting a second target opening degree position; and a target opening degree position switching unit that switches a signal to be input to the throttle opening degree feedback control unit from the first target opening degree position to the second target opening degree position. | 11-26-2009 |
20090288636 | FUEL ECONOMY IMPROVEMENT ASSIST DEVICE AND METHOD OF FUEL ECONOMY IMPROVEMENT ASSIST - A fuel economy improvement assist device ( | 11-26-2009 |
20090288637 | METHOD FOR CALIBRATING AN ACCELERATOR PEDAL - A method for calibrating an accelerator pedal during a driving operation, in which the mechanical position of the accelerator pedal is converted by at least one potentiometer to an electrical signal value and read in by an electronic engine control unit. An idle limit for an idle position of the accelerator pedal and a fill-load limit for a full-load position of the accelerator pedal are set as initial values. An idle signal value that is less than or equal to the idle limit is stored in a potentiometer-specific idle data memory for each potentiometer, a representative idle signal value is determined from the stored idle signal values, and this value is set as the determining idle position of the accelerator pedal specific to each potentiometer. A full-load signal value that is greater than or equal to the full-load limit is stored in a potentiometer-specific full-load data memory for each potentiometer, a representative full-load signal value is determined from the stored full-load signal values, and this value is set as the determining full-load position of the accelerator pedal specific to each potentiometer. | 11-26-2009 |
20090293841 | Engine Speed Control System for Work Vehicle - An engine speed control system for a work vehicle comprises a pedal sensor ( | 12-03-2009 |
20100012086 | CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE - A control apparatus includes a detection unit that detects a stop request to an engine, a throttle closing control unit that, when the stop request is detected, adjusts an opening amount of a throttle valve to an engine-stop throttle valve opening amount smaller than a current opening amount an engine stop detection unit that detects a stop of the engine, an engine-stop exhaust valve control unit that adjusts an opening/closing characteristic of an exhaust valve of a cylinder that will be placed initially in an intake stroke when the engine is restarted so that, when the opening amount of the throttle valve is adjusted to the engine-stop throttle valve opening amount and a stop of the engine is detected, the exhaust valve has an engine-stop exhaust valve opening/closing characteristic by which a closing timing of the exhaust valve is more delayed than a current closing timing of the exhaust valve. | 01-21-2010 |
20100059018 | THROTTLE CONTROL DEVICE AND VEHICLE EQUIPPED WITH THE SAME - In some embodiments, a throttle control device includes an axel | 03-11-2010 |
20100116247 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - A control system for an internal combustion engine for driving a vehicle, which controls an output torque of the engine, is provided. In this control system, a rapid change in a demand torque of the engine is detected, and a feedforward correction amount is generated during a correction period which is substantially equal to a resonance period of a powertrain of the vehicle, from a time when the rapid change in the demand torque is detected. An output torque control amount of the engine is corrected with the feedforward correction amount. A torque change amount integrated value is calculated by integrating an amount of change in the demand torque, and the feedforward correction amount is generated according to the torque change amount integrated value. | 05-13-2010 |
20100162996 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - A method for operating an internal combustion engine, in which a setpoint torque to be output by the internal combustion engine is restricted to a specifiable torque, in particular in response to an error in the control of the internal combustion engine. An engine speed of the internal combustion engine is determined as a function of at least one performance quantity of the internal combustion engine, and the specifiable torque is modified as a function of the determined engine speed. | 07-01-2010 |
20100162997 | COMBUSTION ENGINE AND VEHICLE EQUIPPED WITH SUCH ENGINE - A combustion engine includes an cylinder block having a combustion chamber formed therein, a throttle body forming a part of an air intake passage for introducing an air therethrough into the combustion chamber, a throttle valve accommodated in the throttle body for adjusting a cross section of the air intake passage, and an electrically driven throttle device having an actuator for driving the throttle valve. At least a portion of the throttle body is positioned intermediate between the actuator and the cylinder block. | 07-01-2010 |
20100175662 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS AND CONTROL METHOD THEREOF - An electronic control unit ( | 07-15-2010 |
20100212630 | THROTTLE CONTROL DEVICE FOR SADDLE-RIDE TYPE VEHICLE - A throttle control device for a saddle-ride type vehicle includes a throttle sensor is disposed in a case at a fixed position to detect an amount of a rotation operation of a throttle grip in accordance with a rotation of a throttle pipe. An operation of an actuator which drives a throttle valve to open and close is controlled by a control unit on the basis of a detected value of the throttle sensor. The throttle control device does not require a cancel switch to cancel an operation of an automatic cruise control device, which in turn reduces the number of parts, allowing size reduction of the case fixed on a bar handle. | 08-26-2010 |
20100242907 | THROTTLE CONTROL SYSTEM - A target TH opening degree change amount calculating unit | 09-30-2010 |
20100263627 | EXHAUST GAS RECIRCULATION DIAGNOSTIC FOR COORDINATED TORQUE CONTROL SYSTEMS - A control system includes a throttle control module, an exhaust gas recirculation (EGR) control module, and a diagnostic control module. The throttle control module selectively maintains a desired throttle area when a vehicle is in a coastdown mode. The EGR control module opens an EGR valve when the desired throttle area is maintained. The diagnostic control module selectively diagnoses an error of an EGR system based on a pressure increase measured in an intake manifold of the vehicle when the EGR valve is open. | 10-21-2010 |
20100275879 | AUTOMATIC THROTTLE CALIBRATION IN A MARINE VESSEL - A method of calibrating throttle controls in an electronic shift and throttle system includes opening the throttle and then moving the throttle back towards a hard stop in increments. The voltage level of an electrical signal sent by a throttle position sensor is measured and recorded at each increment. An idle position is established as being where the lowest voltage level was measured when the throttle is at least 0.75° away from the hard stop. | 11-04-2010 |
20100282210 | ELECTRIC THROTTLE CONTROL APPARATUS FOR A MOTORCYCLE - There are provided an accelerator position sensor, an engine speed sensor, an electric motor, and a control unit. The accelerator position sensor detects an amount of operation of an accelerator grip. The engine speed sensor detects an engine rotational speed. The electric motor rotates a throttle valve so as to be opened and closed an intake passage. The throttle valve is opened and closed by the electric motor. The control unit drives the electric motor depending upon an output value of the accelerator position sensor and the engine speed sensor. The control unit includes a map storage section storing a plurality of throttle valve opening maps. Each of the plurality of throttle valve opening maps contains unique throttle valve opening characteristics respectively. The control unit drives the electric motor based on one of selected the throttle valve opening maps. | 11-11-2010 |
20100326402 | Accelerator Opening Degree Estimation and Engine Sound Generation - During travel of a vehicle, an apparatus acquires vehicle velocity information detected by a vehicle velocity sensor and a reference accelerator opening degree and an estimated gear position from a reference accelerator opening degree table indicative of relationship between vehicle velocities and accelerator opening degrees during travel of the vehicle at cruising velocity. The apparatus also acquires an estimated number of prime mover rotations at the vehicle velocity from a vehicle-velocity vs. number-of-prime-mover-rotation correlation table, and then calculates a difference between the estimated number of prime mover rotations and an actual number of prime mover rotations detected by a number-of-prime-mover-rotation sensor. Further, a value, obtained by multiplying the calculated difference by a compensating coefficient determined in accordance with characteristics specific to the vehicle, is added to the reference accelerator opening degree, to thereby calculate an estimated accelerator opening degree. | 12-30-2010 |
20110048373 | ELECTRONIC THROTTLE CONTROL SYSTEM AND METHOD - An electronic throttle control system and method are provided. The system includes a throttle valve, a motor configured to drive the throttle valve, and a throttle position sensor configured to detect an angle of the throttle valve. The system further includes an engine rotating speed detector, and a controller. The controller is configured to drive the motor to control the angle of the throttle valve. The controller is configured to initially set a lower limit value of the angle to an angle which is greater than a full closure angle of the throttle valve by a predetermined amount. The controller is further configured to, when a rise in an engine rotating speed is detected, re-set the lower limit value to reduce it by a predetermined amount to control the engine rotating speed to within a predetermined value from the preset idle speed. | 03-03-2011 |
20110079197 | Control Method and Apparatus for Multi-Fuel Compression Ignition Engines - Control method and apparatus for multi-fuel, compression ignition engines. In accordance with the method, a target fuel whose engine operating characteristics are to be duplicated when using fuels other than the target fuel in the engine is selected, and the engine operating characteristics including engine torque versus throttle setting and engine RPM when operating using the target fuel are determined and stored as a desired indicated torque versus throttle setting and engine RPM. Then, when the engine is operating on a fuel, a fuel control input and engine RPM are sensed, the desired indicated torque for that fuel control input and engine RPM is determined, a measured indicated torque for the engine is determined, and a fuel quantity command is adjusted to cause the measured indicated torque to equal the desired indicated torque. | 04-07-2011 |
20110114061 | ROTATION ANGLE DETECTION DEVICE AND THROTTLE VALVE CONTROL DEVICE USING THE SAME - A rotation angle detection device may include a rotational member, at least one magneto-electric transducer having a magnetism detection portion capable of detecting a change in magnetism caused by rotation of the rotational member and generating a detection signal representative of the change in magnetism, and an operation voltage output portion capable of performing an operation based on the detection signal and generating an output signal. The rotation angle detection device may further include a fixed member having an receiving recess that receives the at least one magneto-electric transducer therein, and an elastic member attached to the receiving recess in which the at least one magneto-electric transducer is received. | 05-19-2011 |
20110308496 | Throttle Valve Controller for Internal Combustion Engine - A throttle valve controller for an internal combustion engine has a throttle valve driven by a motor. The target opening of the throttle valve is determined based on the operating state of the vehicle or internal combustion engine. A first lower limit is determined beforehand as the minimum target opening, and a second lower limit is set which is smaller than the first lower limit if the determined target opening is smaller than a predetermined opening and/or if the rotation speed of the internal combustion engine is lower than a predetermined speed. | 12-22-2011 |
20120000442 | Electronic governor system and control device of the same - When control to maintain a constant engine rotation number is executed, the electronic control unit constantly monitors an error of detected throttle position data with respect to a desired throttle control value, executes a first stage of a failure judgment method to judge that a failure of a throttle control system has occurred in a case where an absolute value of the error exceeds a predetermined threshold value continuously for a predetermined time or longer, and executes a second stage of the failure judgment method to judge that a serious failure has occurred in the system in a case where a detected engine rotation number exceeds a predetermined rotation number continuously for a predetermined time or longer, to perform predetermined operations in accordance with the judgment results. | 01-05-2012 |
20120042851 | THROTTLE RESPONSE MODIFICATION DEVICE AND METHOD FOR VEHICLES EQUIPPED WITH ELECTRONIC THROTTLE CONTROL - One aspect is an electronic throttle control system including an electronic control unit configured to receive actuation signals indicative of a user action and to generate an actuation signal indicative of the user action. A throttle plate motor is configured to receive the actuation signal from the electronic control unit and to move a throttle plate in response thereto. A throttle position sensor is configured to sense the actual position of the throttle plate and to generate an actual position signal indicative of the throttle plate position. A throttle modifier is coupled between the throttle position sensor and the electronic control unit and configured to modify the actual position signal into a modified position signal, and to send the modified position signal to the electronic control unit. | 02-23-2012 |
20120085319 | CONTROL OF COMBUSTION MIXTURES AND VARIABILITY THEREOF WITH ENGINE LOAD - An internal combustion engine can be operated in response to a received first throttle control input in a first operating regime that includes delivering a first air-fuel mixture having a first air/fuel ratio to a combustion volume to deliver a first output power in a first output power range between zero and a transition output power level. The engine can be operated in response to a received second throttle control input in a second operating regime that includes delivering a second air/fuel ratio richer than the first air/fuel ratio to the combustion volume to deliver a second output power in a second output power range between the transition output power level and a maximum output power level. Related methods, systems, and article of manufacture are described. | 04-12-2012 |
20120304964 | Motor-Driven Throttle Valve Control Device Having Inductance-Based Noncontact Rotation Angle Detecting Device, and Rotation Angle Detecting Device Used for the Same - A motor-driven throttle valve control device having high reliability and resistance to electrostatic noise from the gear cover connector is obtained by compactly forming an inductance-based noncontact rotation angle detecting device at the end of the throttle shaft. In the present invention, an excitation conductor is attached to the tip of the throttle shaft to which the throttle valve is attached. The gear cover is provided with a magnetic field exciting conductor and a signal detection conductor to face the excitation conductor. Further, an insulating member is arranged between the rotating shaft (throttle shaft) and the magnetic field exciting conductor and signal detection conductor. With this configuration, a motor-driven throttle valve control device having an inductance-based noncontact rotation angle detecting device, not affected by electrostatic noise and having high reliability, is realized. | 12-06-2012 |
20120304965 | INTAKE STRUCTURE OF MOTORCYCLE - A motorcycle having a head pipe, a vehicle body frame including a pair of left and right main flames extending rearward from the head pipe, and an engine below the vehicle body frame and including a cylinder having an inclined cylinder axis, and an intake device. The intake device has an air cleaner box above the engine and the main frames; a throttle body provided with throttle bores and a valve shaft penetrating the throttle bores, the throttle body is located on a rear side of the engine between the pair of left and right main frames and guides intake air from the air cleaner box to the engine; and a measuring device located on a rear side of the throttle body which rotates about a rotational shaft parallel to the valve shaft to measure a throttle operation amount. | 12-06-2012 |
20130092126 | METHODS AND SYSTEMS FOR A THROTTLE TURBINE GENERATOR - Various systems and methods for an engine system which includes a throttle turbine generator having a turbine which drives an auxiliary generator and disposed in a throttle bypass are described. In some examples, a throttle bypass valve is controlled to adjust airflow through the throttle bypass responsive to airflow to cylinders of the engine. In other examples, an operating parameter such as throttle position is controlled based on transient operating conditions of the engine. In still other examples, charging of a battery is coordinated between the auxiliary generator and a primary generator. | 04-18-2013 |
20130160738 | THROTTLE BODY ASSEMBLY - Improved throttle body assemblies are described. More particularly, throttle body assemblies having improved throttle position sensor assemblies are described. In one aspect, a throttle body assembly for providing controlled aspiration to an engine is described. The assembly comprises a throttle body housing defining a throttle bore for receiving a throttle plate. The throttle plate is actuatable by an electric motor. The assembly further comprises a throttle position sensor configured to monitor positions of the throttle plate. The throttle assembly further comprises an electric discharge path formed between the throttle position sensor and the throttle body housing, wherein the electric discharge path substantially prevents the accumulation of residual electric charge across the throttle position sensor. | 06-27-2013 |
20130174807 | ELECTRIC ACTUATOR FOR VEHICLE - A speed-reducing-gear device includes a plurality of gears, which are arranged to amplify rotational force received from an electric motor. A face width of a plurality of external teeth, which are circumferentially placed one after another in a toothed section of a final gear among the plurality of gears, varies in a rotational direction of the final gear, and the face width is measured in an axial direction of the final gear. | 07-11-2013 |
20130333665 | APPROACH FOR SUPPLYING VACUUM VIA A SUPERCHARGER - A method for supplying vacuum in an engine is disclosed. The method includes controlling a throttle valve positioned upstream of a supercharger arranged in series with and upstream of a turbocharger to draw a fluid from a vacuum line positioned intermediate the throttle valve and a supercharger inlet. | 12-19-2013 |
20140053807 | MOTOR CONTROL DEVICE - A motor control device includes a drive circuit to drive an H-bridge circuit to control a current fed to a motor, a drive command signal generator to generate a drive command signal including a pulse signal having predetermined drive frequency and duty for sending a command to drive the motor, a current detection circuit operable to output a comparison output signal based on comparison between a current detection signal of a motor current and a target value signal, a latch circuit to hold a current detection result based on an ON signal of the drive command signal and the comparison output signal, a gate circuit to drive the drive circuit based on the ON signal of the drive command signal and a latch output signal from the latch circuit, and a control unit that changes the duty of the drive command signal based on the current detection result. | 02-27-2014 |
20140083394 | ACCELERATOR APPARATUS - A rotation angle sensor detects a rotation angle of a pedal by its first Hall IC and second Hall IC, which are disposed between two magnets and output voltages varying with magnetic flux changes. When the rotation angle of the pedal is an accelerator full-closure rotation angle or more, the first Hall IC generates a first voltage V | 03-27-2014 |
20140251270 | Throttle Body Fuel Reservoir - A throttle body is provided with an internal fuel reservoir for relieving pressure waves and for assisting hot start conditions of an associated small internal combustion engine employing a low pressure fuel injection system. | 09-11-2014 |
20140326213 | CONTROL DEVICE FOR SUPERCHARGED ENGINE - An object of the present invention is to improve the accuracy of predicting an in-cylinder intake air amount in a control device that predicts an in-cylinder intake air amount of a supercharged engine and controls the supercharged engine based on the predicted value, and particularly the accuracy during transient operation. To achieve this object, the present control device calculates a predicted value of a supercharging pressure based on a predicted value of a degree of throttle opening using a physical model of the supercharged engine, and also calculates a correction amount thereof. When calculating the correction amount, a measurement value of the supercharging pressure measured by a supercharging pressure sensor is acquired, and an estimated value of the supercharging pressure is calculated based on a measurement value of a degree of throttle opening using a physical model of the supercharged engine. A difference between the measurement value and the estimated value of the supercharging pressure is calculated, and the difference is adopted as a correction amount for the predicted value of the supercharging pressure. The present control device calculates a predicted value of the in-cylinder intake air amount based on the corrected predicted value of the supercharging pressure and a predicted value of the degree of throttle opening. | 11-06-2014 |
20140366840 | Fuel Apportionment for Multi Fuel Engine System - A method for controlling fuel flow to apportion a plurality of available fuels in a multi fuel engine is disclosed. An input power for operating the multi fuel engine at a desired engine speed is determined at a PI controller, and a fuel flow rate for each of a plurality of available fuels is determined at a fuel apportionment module based on the required input power and a specified fuel substitution ratio for apportioning the plurality of fuels to the multi fuel engine. Fuel flow commands for each of the plurality of fuels are output to corresponding actuators of fluid flow control devices for the fuels to cause the cause the fluid flow control devices to provide the corresponding fuels to the multi fuel engine at the corresponding fuel flow rate. | 12-18-2014 |
20150027407 | Altitude Compensation for Internal Combustion Engine - In order to address turbo lag at altitude, a vehicle boosts output torque of an internal combustion engine with electric motor torque generated from a battery. The residual charge of the battery is increased at altitude to provide a sufficient reserve for the corresponding increase in turbo lag. The invention is typically applied to a parallel hybrid vehicle. | 01-29-2015 |
20150059693 | ENGINE CONTROL APPARATUS AND ENGINE CONTROL METHOD - When an accelerator operation amount is 0, a throttle actuator is controlled by means of isochronous control by using a second throttle operation amount (θtps | 03-05-2015 |
20150059694 | CONTROL OF COMBUSTION MIXTURES AND VARIABILITY THEREOF WITH ENGINE LOAD - An internal combustion engine can be operated in response to a received first throttle control input in a first operating regime that includes delivering a first air-fuel mixture having a first air/fuel ratio to a combustion volume to deliver a first output power in a first output power range between zero and a transition output power level. The engine can be operated in response to a received second throttle control input in a second operating regime that includes delivering a second air/fuel ratio richer than the first air/fuel ratio to the combustion volume to deliver a second output power in a second output power range between the transition output power level and a maximum output power level. The first throttle control input can include activation of a throttle control device against a first control resistance provided by the throttle control device, and the second throttle control input can include activation of the throttle control device against a second control resistance provided by the throttle control device and that is greater than the first control resistance. Related methods, systems, and article of manufacture are described. | 03-05-2015 |
20150308354 | ELECTRONIC SWITCHING MODULE FOR MULTIPLE VEHICLE CONTROLS - An electronic switching module for connecting first and second throttle assemblies to an electronic control module of a vehicle that controls an engine of the vehicle includes first throttle assembly ports adapted to receive first throttle primary sensor position data and first throttle secondary sensor position data and second throttle assembly ports adapted to receive second throttle primary sensor position data and second throttle secondary sensor position data. A controller is connected to the first and second throttle assembly ports and an electronic control module port and is adapted to receive and compare the first throttle primary sensor position data and the first throttle secondary sensor position data and send an engine idle signal to the electronic control module via the electronic control module port when the comparison does not show a first predetermined relationship. The controller is also adapted to receive and compare the second throttle primary sensor position data and the second throttle secondary sensor position data and send an engine idle signal to the electronic control module via the electronic control module port when the comparison does not show a second predetermined relationship. | 10-29-2015 |
20150354490 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - The invention relates to a method and an assembly for operating an internal combustion engine. In the method, a correction of the fuel mass is dynamically decoupled from the calculation of the charging-pressure-dependent limitation. | 12-10-2015 |
20150377150 | THROTTLE CONTROL SYSTEMS AND METHODS FOR CYLINDER ACTIVATION AND DEACTIVATION - An engine control system for a vehicle includes a target torque module that determines a target torque output of an engine based on at least one driver input. A target air per cylinder (APC) module determines a target APC for the engine based on the target torque. A target mass airflow (MAF) module determines a target MAF through a throttle valve of the engine based on the target APC, a number of activated cylinders of the engine, and a total number of cylinders of the engine. A throttle control module determines a target throttle opening based on the target MAF and controls opening of the throttle valve based on the target throttle opening. | 12-31-2015 |
123400000 | Mechanical connection between input and speed regulator | 4 |
20120055447 | SPEED GOVERNOR OF ENGINE - The present invention is to provide a speed governor of an engine having a crankshaft and a balancer shaft arranged substantially in parallel to the crankshaft, in which a drive gear provided in the crankshaft and a driven gear provided in the balancer shaft are meshed with each other so as to transmit mechanical power, the speed governor including a plurality of flyweights pivotally supported on the driven gear of the balancer shaft via a plurality of support pins, and an interlock mechanism for connecting the plurality of flyweights to a fuel feed portion for feeding fuel to a combustion chamber of the engine. | 03-08-2012 |
20130291832 | SYSTEM FOR SELECTIVE USE OF PEDAL FOR CONTROLLING NUMBER OF REVOLUTION FOR ENGINE OF WORK VEHICLE - Disclosed is a system for a selective use of a pedal for controlling the number of revolution for an engine of a work vehicle. The system for a selective use of a pedal according to an embodiment of the present invention comprises: a foot accelerator pedal sensor for detecting the maneuvering location of a foot accelerator pedal; a hand accelerator lever sensor for detecting the maneuvering location of a hand accelerator lever; a pedal select switch that is switched selectively by a user for a selective or a simultaneous use of the foot accelerator pedal or the hand accelerator lever; an engine control unit (ECU) that is electrically connected to the pedal select switch, and executes engine control at the number of revolution for the engine set by the foot accelerator pedal or the hand accelerator lever. | 11-07-2013 |
20140352660 | Hand-held power tool with an internal combustion engine - A hand-held power tool has an internal combustion engine provided with a throttle trigger adjustable between an idle position and a full throttle position. The engine has an operating mode selector adjustable between an operating position and a start position. In an intake passage of the engine, a throttle element is arranged that is in a throttling position when the operating mode selector is in the start position. The throttle element is secured in the throttling position by a locking action. The locking action is released when the throttle trigger is moved from the idle position toward the full throttle position. A restoring element is coupled permanently to the position of the throttle trigger. The restoring element, when the throttle trigger is moved for releasing the locking action, acts on the operating mode selector and restores the operating mode selector from the start position into the operating position. | 12-04-2014 |
20150136081 | Altitude Fuel Limiter for Engine and Method of Using the Same - An altitude fuel limiter and method for controlling an engine using the same is provided. The altitude fuel limiter includes a torque screw sleeve extending from an inboard end to an outboard end. The torque screw sleeve has an interior surface defining a central bore extending axially within the torque screw sleeve. A plunger is disposed within the central bore and moves axially between a first position and a second position. A plunger regulator senses ambient pressure and is coupled with the plunger to axially displace the plunger toward the inboard end of the torque screw sleeve to the first position in response to sensing an ambient pressure that is below a predetermined pressure. The predetermined pressure may be associated with non-compliant altitudes and the plunger limits fuel delivered to the engine when displaced to the first position. | 05-21-2015 |