| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 318452000 | Plural, diverse conditions or with time-delay means | 57 |
| 20080284364 | ELECTRONICALLY COMMUTATED ASYNCHRONOUS MOTOR - An electronically commutated asynchronous motor ( | 11-20-2008 |
| 20090021203 | METHOD AND DEVICE FOR CONTROLLING AND MONITORING A HYBRID FOUR-WHEEL DRIVE VEHICLE - A method for controlling and monitoring a hybrid vehicle including a driving internal combustion engine, and an electric machine that is operational, upon an instruction, in a form of a driving engine and is powered by a battery. The method detects a vehicle operating state, in transmitting, in response, an operating instruction to the electric machine only, without requesting any particular instruction from the internal combustion engine and respecting the vehicle stability constraint and a protecting constraint of the electric components thereof. | 01-22-2009 |
| 20090079376 | DELAY-BASED ACCESS CONTROL APPARATUS AND METHOD - An access control mechanism such as a movable barrier operator ( | 03-26-2009 |
| 20090195203 | VIRTUAL TENSIONER TRAVEL SENSOR FOR A SERPENTINE BELT TENSIONER ASSEMBLY - A control module of a vehicle comprises a drive diagnostic module and a hybrid control module. The drive diagnostic module determines a load energy of an accessory drive system of the vehicle and determines a slip percentage of a belt of the accessory drive system based on an engine speed and a motor speed. The hybrid control module determines a requested motor torque based on at least one of the load energy and the slip percentage. The control module controls a motor of the vehicle based on the requested motor torque. | 08-06-2009 |
| 20090230908 | Drive Device for Vehicle - An object of the present invention is to suppress reverse of a vehicle on an up-hill road against an intention of a driver. A drive device for a vehicle according to the present invention includes: an estimator for estimating whether or not reverse of the vehicle occurs on an up-hill road; a rotating electric machine for generating electric power by rotation of a drive wheel in the vehicle when the vehicle reverses; a capacitor for electrically charging the electric power generated by the rotating electric machine; and a battery connected in parallel to the capacitor, wherein the estimator estimates that the reverse of the vehicle occurs when a current traveling road is an up-hill road and a vehicular speed is smaller than a threshold whereas the electric power of the capacitor is electrically discharged to the battery when the reverse of the vehicle is estimated and the amount of electric energy of the capacitor is greater than a certain threshold. | 09-17-2009 |
| 20090251090 | DRIVE SYSTEM FOR ELECTRICALLY DRIVEN DUMP TRUCK - A drive system for an electrically driven dump truck is capable of preventing a prime mover from stalling and is also capable of enabling electric motors for traveling to make full use of the output horsepower of the prime mover up to an output limit of the prime mover. The target motor horsepower Mr | 10-08-2009 |
| 20100001676 | Drive Device for at Least One Electric Motor and Drive Control Unit Interacting with the Drive Device - A drive device for an electric motor is provided. The drive device decides based on signals it receives from outside whether it is monitoring an actual value of the electric motor with respect to the adherence to an actual value condition (monitoring operation). During monitoring operation, the drive device causes the motor to be disconnected from a power supply if the actual value does not adhere to the actual value condition. Via a communication connection, the drive device provides a drive control unit with first information, which reveals whether the drive device is in the monitoring operating mode. The drive device provides the drive control unit with second information, which reveals what the actual value condition is. Based on the first information, the drive control unit examines whether the drive device is in the monitoring operating mode. If this is the case, the drive control unit, based on the second information, determines what the actual value condition is. | 01-07-2010 |
| 20100253270 | METHOD AND DEVICES FOR DRIVING A DAMPER - An actuator ( | 10-07-2010 |
| 20100327791 | ELECTRIC MACHINE WITH NON-COAXIAL ROTORS - A rotary electric machine having plural rotary elements in a non-coaxial arrangement is disclosed. The rotary electric machine includes a housing assembly, at least one stator frame mounted in the housing assembly, at least one stator winding wound on the at least one stator frame, and at least two rotors mounted in the housing assembly having axes of rotation that are non-coaxial, wherein each of the at least two rotors is mechanically decoupled from the other rotors such that each of the at least two rotors rotates independent from one another. The rotary electric machine also includes a control unit, with the control unit including at least one electronic control electrically connected to the at least one stator winding. The control unit is configured to control an exchange of power to or from each of the at least one stator windings. | 12-30-2010 |
| 20110163707 | METHOD AND APPARATUS FOR CONTROL OF ELECTRICAL MACHINES - A method for finding an operating point of an electric motor which includes the steps of generating a perturbation signal, combining the perturbation signal with a current magnitude related to a drive system of the motor or combining the perturbation signal with a power magnitude related to the motor, yielding a combined signal, and sending, based on the combined signal, a flux adjustment signal to adjust a flux of the motor. An apparatus for finding an operating point of an electric motor comprising is also presented. | 07-07-2011 |
| 20120161682 | RETROFIT MOTOR SYSTEM FOR HEATING, VENTILATION, AND AIR CONDITIONING APPLICATIONS - A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existing non-ECM electric motor included in an HVAC application and to operate in one of a plurality of HVAC modes. The HVAC modes include at least one of a heating mode, a cooling mode, and a continuous fan mode. The HVAC mode is determined based at least partially on outputs provided by the thermostat. | 06-28-2012 |
| 20120235619 | PUMP SYSTEM AND METHOD FOR OPERATING THE SAME - Provided is a pump system. The pump system includes an AC (alternating current) electric motor, a converter, a smoothing unit, an inverter, a volt/hertz pulse width-modulation controller, and a main controller. The AC electric motor operates a pump which is a load. The converter receives AC power and converts the AC power into DC (direct current) power. The smoothing unit smoothes a DC voltage converted by the converter. The inverter converts the DC voltage output from the smoothing unit into an AC voltage. The volt/hertz pulse width-modulation controller applies switching voltage to a semiconductor switching device of the inverter. The main controller changes an operating frequency according to a load detected when the Ac electric motor is in operation and puts the AC electric motor to a sleep mode after determining a load operation status. | 09-20-2012 |
| 20120326648 | FAN DELAY CONTROL CIRCUIT - A fan delay control circuit includes a fan connector connected to a fan of an electronic device, a power supplying module connected to the fan connector, and a rotational speed controlling module connected to the power supplying module. The power supplying module is connected to a fan power source and a stand-by power source. The power supplying module may continue to supply power to the fan when the electronic device including the fan is powered off. The rotational speed controlling module includes a square wave generation circuit which generates a square wave signal to control a rotational speed of the fan even when the electronic device is powered off. | 12-27-2012 |
| 20130099712 | MULTI-PRESSURE-QUANTITY FAN CONTROL SYSTEM AND COMPUTER SYSTEM HAVING THE SAME - A multi-pressure-quantity fan control system for a computer system is provided. The multi-pressure-quantity fan control system includes a controller. The controller provides a pressure-quantity control signal to a fan of the computer system, in order to set the fan to operate in one of a first pressure-quantity setting and a second pressure-quantity setting, wherein under a predetermined rotating speed, the fan has a first pressure-quantity curve for the first pressure-quantity setting and a second pressure-quantity curve for the second pressure-quantity setting. | 04-25-2013 |
| 20130141029 | Active pre-programmable reminder system for special moments - An active system that can be pre-programmed to operate at a specific, emotionally significant moment. The system includes a meaningful sculpture (such as a heart, Star of David, cross, and so on), which in normal position is in a disassembled and non-harmonious state and which only when the preprogrammed moment arrives, is activated so that the sculpture is reassembled, becomes complete and harmonious. The system includes a casing, a motor, an internal clock, a transmission system, and a device that connects the sculpture parts to the transmission system. The system also includes display screens and a command and control panel. | 06-06-2013 |
| 20130147411 | SYSTEM AND METHOD FOR CONTROLLING FANS - A system for controlling fan speed, wherein fans are employed to dissipate heat generated by a plurality of hard disk drives divided into groups, includes a temperature sensor detecting an overall temperature where the hard disk drives are arranged, a control unit obtaining a number of operating hard disk drives in each group, and a baseboard management controller (BMC) storing ratios corresponding to different temperatures and different numbers of operating hard disk drives in each group. The BMC obtains the temperature from the temperature sensor and the number of operating hard disk drives in a group, and obtains a ratio from a preset table according to the temperature and the number of operating hard disk drives in the group, to adjust the speed of the fan. | 06-13-2013 |
| 20140084832 | MOTOR CONTROL SYSTEM, MOTOR CONTROL DEVICE, AND BRUSHLESS MOTOR - A motor control system includes a host ECU and a motor control device. The host ECU controls a wheel driving unit. A power supply to the ECU is halted when an IG switch is turned OFF. The motor control device receives a PWM command signal from the host ECU and controls a motor of a cooling blower. The host ECU modulates a duty ratio of pulses of the PWM command signal by a target rotating speed of the motor, modulates a period of the pulses of the PWM command signal by a continuous operation time of the motor, and transmits the result to the motor control device. The motor control device reconstructs both the target rotating speed and the continuous operation time, and controls rotating speed of the motor from the received PWM command signal. Moreover, the motor control device halts rotation of the motor when a signal-unreceiving time period of the PWM command signal becomes larger than the continuous operation time. | 03-27-2014 |
| 20140265975 | INVERTER CONTROL METHOD AND VEHICLE HAVING SAME - A method of controlling a power inverter coupled to an electric motor in a vehicle powertrain having an engine is provided. The method includes generating a voltage waveform signal and a switching frequency signal for the inverter via a controller. At least one of the voltage waveform signal and the switching frequency signal is at least partially based on at least one commanded engine operating parameter. For example, the engine on/off state, engine torque, and engine speed can be considered. A vehicle having a controller configured to implement the method is also provided. | 09-18-2014 |
| 20150295524 | SAFE TORQUE OFF PROCEDURE - A method and an arrangement of producing a safe torque off procedure of an electrical drive including a control unit and one or more power units having controllable semiconductor switches. The method includes detecting a signal in a control unit indicating a requirement to stop the drive, generating, based on the detected signal, at least one safety-approved signal which when received in a power unit initiates shutting-down of the power unit, feeding the generated at least one safety-approved signal to one or more power units, and initiating the shutting down of the one or more power units upon the receipt of the at least one safety-approved signal, the at least one safety-approved signal initiating at least two different shut-down procedures of the one or more power units at different time instants. | 10-15-2015 |
| 20160026107 | MOTOR CONTROL APPARATUS, IMAGE FORMING APPARATUS, AND MOTOR CONTROL METHOD - A motor control apparatus controls a start/stop operation of a motor and includes a counting unit that performs a count-up or count-down operation from a predetermined initial value with a lapse of time in response to receiving an operation start instruction for the motor; a signal output unit that outputs a first state signal in response to receiving the operation start instruction, and outputs a second state signal only when a result of the counting by the counting unit falls outside a predetermined range; and a drive unit that outputs an ON signal to the motor in response to receiving the first state signal from the signal output unit, and outputs an OFF signal to the motor in response to receiving the second state signal from the signal output unit. | 01-28-2016 |
| 20160202710 | MOTOR DRIVING CONTROL APPARATUS AND ELECTRICALLY ASSISTED VEHICLE | 07-14-2016 |
| 318453000 | Electrical condition | 36 |
| 20080218111 | Control Device for Motor Drive System and Electric Vehicle Including the Same - A square wave voltage having an amplitude equal to an output voltage of a converter is applied to an AC motor by a square wave control block. Torque control of the AC motor is performed basically by changing the voltage phase of the square wave voltage according to the torque deviation. When the motor revolution is suddenly changed, a instruction value correction unit sets a voltage instruction value of the output voltage of the converter according to a change ratio of the motor revolutions. This improves control of the motor current by changing the voltage applied to the motor in accordance with the sudden change of the motor revolutions without waiting for torque feedback control having a low control response. | 09-11-2008 |
| 20080315815 | CONTROL DEVICE AND CONTROL METHOD - A control device for controlling a recovery from a locking of a motor includes: a switching unit which supplies a motor current from a current supplying unit to the motor; and a driving control unit which supplies a PWM control signal to the switching unit to control a driving of the switching unit. The driving control unit supplies the PWM control signal with a low duty ratio lower than a regular duty ratio to the switching unit when the locking of the motor is detected depending on a variation in temperature of the switching unit. The driving control unit supplies the PWM control signal with the regular duty ratio to the switching unit when a cancel of the locking of the motor is detected depending on a variation in inter-terminal voltage of the motor. | 12-25-2008 |
| 20090237023 | Device for Controlling Opening/Closing Body for Vehicle - The rotating speed of an output shaft of a door opening and closing motor actuating a sliding door is monitored, and whether a fluctuation value of the rotating speed is equal to or more than a first determination threshold value is determined (step S | 09-24-2009 |
| 20100102767 | CONTROL APPARATUS FOR HYBRID DRIVE SYSTEM - A control apparatus for a hybrid drive system including a main drive power source, an electric generator, a wheel-side output shaft, a power distributing mechanism for distributing the drive force of the main drive power source to the electric generator, the wheel-side output shaft and an automatic transmission, and an electric motor connected to the wheel-side output shaft through the automatic transmission, the control apparatus including a motor-output limitation control device for implementing an output limitation of the electric motor according to a requirement for the output limitation, and a motor-output limitation inhibiting device to inhibit the output limitation of the electric motor by the motor-output limitation control device, during a shift-up action of the automatic transmission, or a motor-output increasing device to control the electric motor to increase its output so as to offset the output limitation of the electric motor implemented by the motor-output limitation control device according to a requirement for the output limitation during a shift-up action of the automatic transmission. | 04-29-2010 |
| 20110156629 | ELECTRIC POWER STEERING DEVICE - An electric power steering device includes: an electric power source for supplying first current; a controller for setting a current instruction value; multiple electric power converters for converting the first current to second current corresponding to the current instruction value; multiple pairs of windings for generating a driving force of a motor; and a failure detection element for detecting failure of the electric power converters and the windings. The controller reduces the current instruction value to be equal to or smaller than a predetermined instruction value of a normal operation when the failure detection element detects the failure. The controller controls the electric power converter in a normal state to supply the second current to a corresponding winding. | 06-30-2011 |
| 20110215747 | ELECTRIC ACTUATOR AND MODULE FOR SUPPLYING POWER DURING A POWER FAILURE - An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A relay connector is provided in an electric actuator. When a module for supplying power during a power failure is connected, a first drive output signal generated by a motor drive circuit is relayed to the module and a motor power switching circuit is provided in the module. When the AC power supply does not fail, the first drive output signal sent from the electric actuator is selected; when the AC power supply fails, the second drive output signal generated by the motor drive circuit is selected and is sent to the AC motor of the electric actuator, via the relay connector. | 09-08-2011 |
| 20110215748 | ELECTRIC ACTUATOR AND MODULE FOR SUPPLYING POWER DURING A POWER FAILURE - An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A portion for supplying power during a power failure, a power failure detection circuit, and a motor power supply switching circuit are provided in a module detachably coupled to the electric actuator. When failure of primary power is not detected, the power is sent to the electric actuator by the motor power supply switching circuit. When failure of the primary power is detected, secondary power is sent to the electric actuator by the motor power supply switching circuit. In addition, notification of the power failure is sent from the module to the control board of the electric actuator, via a relay connector. After being notified of the power failure, the control board reads a specified aperture during a power failure from a memory, and drives the motor with secondary power from the module as the energy source, thereby setting the aperture of the valve to the aperture during a power failure. | 09-08-2011 |
| 20110215749 | ELECTRIC ACTUATOR AND MODULE FOR SUPPLYING POWER DURING A POWER FAILURE - An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A power failure detection circuit, a portion for supplying power during a power failure, a motor power supply switching circuit, a power failure control signal generation circuit, and a control signal switching circuit are provided in a module detachably coupled to the electric actuator. When failure of the primary power is not detected, the motor power supply switching circuit and the control signal switching circuit send the primary power and a signal indicative of a setting of an aperture of a valve of the electric actuator, respectively, to the electric actuator. When failure of the primary power is detected, the motor power supply switching circuit and the control signal switching circuit send the secondary power and the signal indicative of the setting of the aperture during a power failure to the electric actuator. | 09-08-2011 |
| 20110234137 | SYSTEM CLOCK MONITORING APPARATUS AND MOTOR CONTROL SYSTEM - A mode determination circuit is configured to determine whether there is a status change of the electric system associated with a frequency variation of a system control clock, and a clock change circuit is configured to change the system control clock from a system clock to a monitoring clock based on a determination result obtained by the mode determination circuit. | 09-29-2011 |
| 20110241589 | ELECTRIC MOTOR CONTROL SYSTEM - There is provided a control system for an electric motor to which electric power is supplied from a DC power supply via a multi-phase inverter, the multi-phase inverter including switch units respectively provided on a positive side and a negative side of arms corresponding to respective phases, each switch unit including a switching element and a reflux diode connected in parallel thereto. The control system comprises a phase current detection unit for detecting phase currents which flow between the inverter and the electric motor, a DC component acquiring unit for acquiring DC components of the respective phase currents, and a short-circuiting determination unit for determining that a short-circuit failure occurs in the inverter when at least one of the DC components of the phase currents acquired by the DC component acquiring unit exceeds a threshold. Consequently, the short-circuit failure of the inverter can be detected even though the control of the electric motor is stopped. | 10-06-2011 |
| 20120112677 | METHOD AND DEVICE FOR DETECTING AN ENTRAPMENT SITUATION - To detect an entrapment situation when a driven component is adjusted using a mechanical adjustment system which has an electric motor ( | 05-10-2012 |
| 20120326649 | Systems and Methods for Operating a Solar Direct Pump - Systems and methods for operating a solar direct pump are provided. A system for controlling an alternating current (AC) pump includes a photovoltaic module, a temperature sensor that measures a temperature of the photovoltaic module, a calculator that calculates a maximum power point (MPP) voltage of the photovoltaic module based on the temperature of the photovoltaic module, and a frequency controller that adjusts a reference frequency of power supplied to the pump based on the MPP voltage. | 12-27-2012 |
| 20130020976 | APPARATUS AND METHOD FOR CONTROLLING MEDIUM VOLTAGE INVERTER - Provided is an apparatus and method for controlling medium voltage inverter, whereby a frequency outputted by the medium voltage inverter is fixed, in a case an instantaneous power interrupt occurs while the medium voltage inverter drives a motor, and a voltage level of an AC power generated by the medium voltage inverter is reduced and outputted in response to a predetermined deceleration slope to control the medium voltage inverter. | 01-24-2013 |
| 20130049663 | CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE - When a vehicle collision is detected, a electric connection between a power supply and an input stage of an inverter is switched to the disconnected condition. Then, when a rotation speed of an alternating current motor is higher than an allowable rotation speed or a terminal voltage of a storage unit provided at the input stage is higher than an allowable terminal voltage, an exciting current command value is set at a value other than zero and a torque current command value is set at zero, and when the rotation speed is equal to or lower than the allowable rotation speed and the terminal voltage is equal to or lower than the allowable terminal voltage, both command values are set at zero. An exciting current component and a torque current component of an alternating current supplied from the inverter to the motor are controlled according to the set command values. | 02-28-2013 |
| 20130076285 | METHOD FOR COMPENSATING INSTANTANEOUS POWER FAILURE IN MEDIUM VOLTAGE INVERTER AND MEDIUM VOLTAGE INVERTER SYSTEM BY USING THE SAME - Provided are a method for compensating instantaneous power failure in medium voltage inverter and a medium voltage inverter system by using the same, the method for compensating instantaneous power failure in medium voltage inverter including a plurality of power cells supplying a phase voltage to a motor by being connected to the motor in series, the method including decreasing an output frequency of the plurality of power cells by as much as a predetermined value at a relevant point where an input voltage of the plurality of power cells is less than a reference value, decreasing the output frequency at a predetermined deceleration gradient, and maintaining the output frequency during restoration of input voltage as long as a predetermined time, in a case the input voltage is restored. | 03-28-2013 |
| 20130307456 | ELECTRIC TURNING DEVICE - An electric turning device includes an electric motor configured to drive and turn an upper turning body that is rotatably arranged on a base part, an inverter that supplies electric power to the electric motor, a control part that supplies a drive command for controlling drive operations of the electric motor to the electric motor according to a lever input amount, and an abnormality detecting part that detects an abnormality. When the abnormality detecting part detects the abnormality, the control part arranges the drive command to include a vibration component and supplies the drive command including the vibration component to the electric motor. | 11-21-2013 |
| 20130328512 | ELECTRIC AUTOMOBILE, IN-WHEEL MOTOR DRIVE DEVICE, AND MOTOR CONTROL METHOD - An electric vehicle is proposed which can achieve early detection of abnormal short-circuit of motor coils, thus avoiding various driving problems. The electric vehicle includes a motor unit configured to drive a wheel. The motor unit includes a synchronous motor with three-phase motor coils. The three-phase motor coils include a first motor coil, a second motor coil and a third motor coil of different phases. One end of the first motor coil, one end of the second motor coil and one end of the third motor coil are connected with each other at a neutral point in a star connection. The electric vehicle also includes an abnormal short-circuit monitor configured to detect an abnormal short-circuit of the motor coils, and also includes an abnormalities-responsive disconnection unit configured to electrically disconnect the motor coils from the neutral point. | 12-12-2013 |
| 20140084833 | METHOD AND APPARATUS FOR IMPROVING OUTPUT OF A MULTI-WINDING MOTOR - A technique for controlling drive currents to respective windings of a multi-winding brushless motor comprises monitoring an output of the motor and a demand of the motor, determining whether a failure mode has occurred, the failure mode being an instantaneous complete or partial failure to generate demanded output; and, upon detection of a failure mode on a first winding, distributing a demand contribution that is not being produced by the first winding to one or more of the windings that are not in a failure mode. The demand may be torque demand, and the failure modes may include winding failure, and voltage and/or current saturation. Improved torque output is generated by the redistribution of demand among phases in the event of a failure mode. | 03-27-2014 |
| 20140139163 | FAN CONTROL CIRCUIT - The fan control circuit includes a first switch unit, a second switch unit, and a delay unit. The first switch unit outputs a first or a second voltage according to a power good signal. The delay switch unit performs a delay operation on the power good signal, and outputs different control signals to the second switch unit before or after the delay operation exceeds a predetermined time. The second switch unit receives the control signals from the delay unit, and connects or disconnects the first switch unit to or from a fan according to the control signals. | 05-22-2014 |
| 20150091485 | SYSTEMS AND METHODS FOR CONTROLLING A DISCONNECT SWITCH VIA A NETWORK - A system for controlling a disconnect switch via a network may include a disconnect switch and a drive. The disconnect switch may receive alternating current (AC) power from an AC power supply, and the drive may then receive the AC power via the disconnect switch. The drive may include a processor that may communicatively couple to the disconnect switch. As such, the processor may control a drive operation that corresponds to the drive and control a disconnect operation that corresponds to the disconnect switch. | 04-02-2015 |
| 20160072425 | ACTIVE IMPACT FORCE/TORQUE CONTROL FOR AN ELECTROMECHANICAL ACTUATOR - A system that improves on known systems for reducing output torque by a motor in the event of a jam may include an electromechanical actuator (EMA), a motor configured to drive the EMA and a controller. The controller may be coupled to the motor and configured to receive a speed of the EMA and a position of the EMA. The controller may be further configured to determine whether a jam of the EMA is imminent or is occurring according to the EMA speed, EMA position, and a known range of motion of the EMA, and to provide an input signal to the motor to reduce a torque of the motor if a jam of the EMA is imminent or is occurring. | 03-10-2016 |
| 20160099669 | METHOD AND DEVICE FOR OPERATING AN ELECTROMOTIVE FAN DRIVE - A method and a device for operating a closed-loop or open-loop speed-controlled electric motor of a fan drive, which motor is connected to an on-board system voltage of a motor vehicle and the motor speed of which is set to a defined first desired speed, wherein, if the on-board system voltage fluctuates, the motor speed is set to a desired speed that is lower compared with the first desired speed. | 04-07-2016 |
| 318454000 | Plural, diverse electrical conditions | 14 |
| 20090153088 | METHOD AND DEVICE FOR TEMPERATURE LIMITATION ACCORDING TO CURRENT AND/OR VOLTAGE - The invention relates to a method for temperature limitation according to the current and/or voltage, for an actuating device ( | 06-18-2009 |
| 20090243528 | Control System for Window Lifters of a Motor Vehicle - A control system for a first window lifter adjusts a first window pane of a motor vehicle having a first drive, and for a second window lifter for adjusting a second window pane of the motor vehicle having a second drive, having a control device. The control device may be electrically connected both to the first drive and to the second drive for the purpose of energization. The control device may have a first sensor for determining a first adjustment position of the first window lifter, and a second sensor for determining a second adjustment position of the second window lifter, the first sensor and the second sensor being based on different physical operational principles. | 10-01-2009 |
| 20100194321 | SYSTEMS AND METHODS FOR DYNAMIC FAN SPEED CONTROL IN AN INFORMATION HANDLING SYSTEM - An information handling system includes a processor, memory coupled to the processor, a cooling fan, and a controller coupled to the processor and configured to control the speed of the cooling fan based on the operation of the memory. The processor is configured to determine a user-selected performance setting for the information handling system; determine a fan speed limit corresponding to the user selected performance setting; limit the speed of the cooling fan based on the determined fan speed limit; and in connection with limiting the speed of the cooling fan, control an operational parameter of the memory to reduce cooling demands generated by the memory. | 08-05-2010 |
| 20100194322 | ELECTRIC VEHICLE CONTROLLER - An electric vehicle controller includes a speed sensorless vector controller for estimating the rotating speed of an AC motor from an output voltage command and an output current from a VVVF inverter, and controlling the VVVF inverter based on the estimate. An overhead wire current detector detects the current flowing through an overhead wire. A wrong action sensor senses an abnormality in the speed sensorless vector controller from the sign of the current flowing through the overhead wire and detected by the overhead wire current detector when the VVVF inverter is in operation. A gate stop circuit stops the VVVF inverter when the wrong action sensor senses an abnormality. | 08-05-2010 |
| 20110018482 | TWIN MOTOR ACTUATOR - A twin motor actuator includes a pair of motor controllers for controlling respective motors according to commands received by each motor controller, and a communication link for communicating the commands received by each motor controller to the other motor controller. The motor controllers are configured to transmit the commands received by the motor controller to the other motor controller via the communication link, determine whether contradictory commands have been received by the motor controllers, and control the motors at a defined state if contradictory commands are received. The communication link is an electrically isolated communication link and the defined state may be the state of the motors immediately before detecting the contradictory commands. | 01-27-2011 |
| 20130113406 | SYSTEM AND METHOD TO DETERMINE THE OPERATING STATUS OF AN ELECTRICAL SYSTEM HAVING A SYSTEM CONTROLLER AND AN ACTUATOR CONTROLLER - A system and method to determine the operating status of an electrical system includes a system controller and an actuator controller. The system controller determines if the actuator controller is operating properly and initiates a safe mode of operation if the actuator is not operating properly. In turn, the actuator controller determines if the system controller is operating properly and initiates a safe mode of operation if the system controller is not operating properly. | 05-09-2013 |
| 20130147412 | Power System Protection - An apparatus and method for protecting a power system comprising a generator providing power to an alternating current bus, a power converter for converting alternating current power on the alternating current bus to direct current power on a direct current bus, and a direct current load powered by the direct current power on the direct current bus. An undesired condition is identified at the input to the power converter from the alternating current bus. The undesired condition is caused by at least one of the power converter, the direct current bus, or the load. The power converter is disconnected from the alternating current bus in response to identifying the undesired condition for at least a time delay. The time delay is selected such that the power converter is disconnected from the alternating current bus before the alternating current bus is disconnected from the generator due to the undesired condition. | 06-13-2013 |
| 20130193892 | HYBRID CONSTRUCTION MACHINE - In a hybrid construction machine, there is provided a drive control device which realizes in, as a simple a structure as possible, control means of a motor generator, which is capable of preventing rapid decreases in the state of charge. The control means, which calculates a motor torque command value to be output to the motor generator, is characterized by calculating the motor torque command value, based on a difference between an actual state-of-charge and a prescribed target state-of-charge and a torque margin obtained by a difference between a maximum torque of an engine determined based on an actual rotational speed of the engine and an actual torque of the engine. | 08-01-2013 |
| 20140062368 | METHOD AND CONTROL DEVICE FOR PROTECTION TIME SETTING IN AN ELECTRIC DRIVE SYSTEM - The invention relates to a control device ( | 03-06-2014 |
| 20140077740 | ELECTRIC BICYCLE DRIVING APPARATUS - Disclosed is an electric-bicycle driving apparatus. The electric-bicycle driving apparatus includes a speed-change mode operator to output a low-speed or high-speed mode signal, a controller to receive the low-speed or high-speed mode signal from the speed-change mode operator and to output a first or second control-signal corresponding to the low-speed or high-speed mode signal, a generation-signal provider to provide a generation-signal output from a generator, and a motor-driver operating-signal regulator to receive the first or second control signal when the speed-change mode operator outputs the low-speed or high-speed mode signal, to regulate a level of the generation-signal output from the generation-signal provider and to provide the resulting signal to a motor driver that drives a motor, the motor-driver operating-signal regulator providing a lowered level of generation-signal to the motor driver that is operated upon receiving power of a battery, and cutting off an abnormal signal from the motor driver. | 03-20-2014 |
| 20150303854 | ELECTRIC POWER SAVING DEVICE FOR MOTOR OF PUMP JACKS APPARATUS - An electric power saving device for motor of pump jack apparatus. The electric power saving device preferably detects current and voltage generated from a motor of the pump jack during the up stroke and down stroke and preferably converts the real-time load torque obtained using an AC amplifier and voltage converter. The electric power saving device preferably minimizes the counter electromotive force (Back-EMF) and preferably reduces consumption of electrical energy by automatically reducing speed in a heavy-load during an up stroke, while automatically increasing speed in un-load, during a down stroke. This is preferably done by converting real-time load torque obtained by torque formula and through the output value according to load torque in order to minimize Back-EMF. | 10-22-2015 |
| 20150381093 | SYSTEM AND METHOD FOR DETECTING AND CONTROLLING A MOTOR - A system including an electric motor and a control software operable to control the operation of a plurality of different types of electric motors. The control software is provided with or identifies a particular control algorithm from among a plurality of such algorithms and/or a particular set of operational parameters from among a plurality of such sets for the motor with which it is assembled. The sets of operational parameters are stored in one or more read-only memories, which may be electrically erasable programmable read-only memories. To identify the particular motor control algorithm and/or the particular set of operational parameters, the control software causes the motor to be energized, senses an actual operating parameter of the motor, and identifies the particular motor control algorithm and/or the particular set of operational parameters based on the sensed actual operating parameter. | 12-31-2015 |
| 20160036369 | DRIVE DEVICE - A drive device for controlling an electric motor, including a processor, and a non-transitory storage medium containing program instructions, execution of which by the process causes the drive device to provide functions of a customization unit and a core unit. The customization unit receives, from an external device, a command value designating an operating state of the electric motor, converts the command value using a predetermined reference value, and outputs the converted command value. The core unit receives the converted command value from the customization unit, recovers a physical quantity from the received converted command value, and controls the electric motor in accordance with the recovered physical quantity. | 02-04-2016 |
| 318455000 | Voltage and current (e.g., watts) | 1 |
| 20090167228 | APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING SPEED OF A COOLING FAN - An apparatus, system, and method are disclosed for controlling fan speed. A power sensing module senses input voltage and current of a power supply. The power supply includes one or more stages and regulates at least one output bus. A power calculation module calculates input power from the input voltage and the input current. A temperature sensing module senses an ambient temperature and/or a temperature at a component cooled by a fan. A fan speed calculation module calculates a fan speed signal for the fan. The fan speed signal is a function of the input power calculated by the power calculation module and the sensed temperature sensed by the temperature sensing module for at least a portion of a fan speed range. A fan speed transmission module transmits the fan speed signal to the fan and adjusts a fan speed based on the fan speed signal. | 07-02-2009 |
