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US20110024212 Electric Powertrain System Having Bidirectional DC Generator  
An electric powertrain for use with an engine and a traction device is disclosed. The electric powertrain has a DC motor/generator operable to receive at least a portion of a first mechanical...
US20110260661 Brake Resistor Control  
An electric drive system comprises a generator, a traction motor, a brake resistor, a bus, and a control unit. The generator, the traction motor, and the brake resistor are coupled electrically to...
US20090251090 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...
US20150224975 DYNAMIC PEDAL RESPONSE FOR VEHICLE FUEL ECONOMY  
A controller, in response to a change from a first steady pedal condition to a second steady pedal condition, decreases a torque command during the second steady pedal condition based on a...
US20110109256 FIBER OPTICALLY COMMUNICATED MOTOR TEMPERATURE AND POSITION SIGNALS  
Methods and apparatus are provided for a controlling an electric motor that is at least partially disposed within a motor housing. The rotational speed and position of the electric motor are...
US20110025247 METHOD AND SYSTEM FOR TESTING ELECTRIC MOTORS  
Method and systems for testing an electric motor are provided. A switching circuit coupled to the motor is operated in a first mode causing current to flow through the motor such that the motor is...
US20110163704 METHOD AND APPARATUS FOR MONITORING A SYSTEM INCLUDING A SENSORLESS ELECTRIC MOTOR  
A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor....
US20140074337 HYBRID WORK MACHINE AND METHOD OF CONTROLLING SAME  
A hybrid work machine includes an engine, a motor generator connected to the engine, an electric energy storage unit configured to store electric power generated by the motor generator, and a...
US20110095713 METHOD AND SYSTEM FOR INITIATING OPERATION OF AN ELECTRIC MOTOR  
Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first...
US20070007055 Compact drive unit, axially displaced angular gear, and method for the production of a drive unit  
In compact drive, spiroid gear unit, and method for manufacturing a drive unit that includes at least an electric motor, a brake, a gear unit, and a frequency converter, the output shaft of the...
US20120253574 METHOD FOR MONITORING THE OPERATION OF A VACUUM PUMP IN A BRAKE SYSTEM  
In a method for monitoring the operation of a vacuum pump in a brake system, the vacuum pump is operated between an activation pressure and a deactivation pressure to generate a vacuum, the...
US20070193795 Hybrid Drivetrains For Trailers  
A trailer includes a pair of wheels rotatably coupled to a trailer frame. A motor is operable to provide drive torque to at least one of the wheels. The energy storage device is mounted to the...
US20110000722 HYBRID OPERATING MACHINE  
A motor generator selectively performs a power generation operation and an assisting operation. A torque transmission machine performs mutual transfer among a torque of an engine, a torque of the...
US20120303189 METHOD AND APPARATUS TO OPERATE A POWERTRAIN SYSTEM INCLUDING AN ELECTRIC MACHINE HAVING A DISCONNECTED HIGH-VOLTAGE BATTERY  
A powertrain system includes an electric motor/generator unit. Upon detecting an open high-voltage switch associated with a high-voltage DC electrical bus, low-voltage electrical power is employed...
US20100323844 MOTOR POWER CONTROL  
A hybrid electric vehicle includes an internal combustion engine, a traction battery, and a hybrid electric powertrain including an electric motor powered by the traction battery. A method of...
US20150066265 DYNAMIC ALLOCATION OF DRIVE TORQUE  
Methods and systems are provided for dynamically allocating engine torque and motor torque in a hybrid vehicle to meet operator torque demand. The allocation is adjusted by constraining the...
US20120133313 System And Method For Estimating A Generator Rotor Temperature In An Electric Drive Machine  
An electric drive machine includes an electric drive system including an internal combustion engine and an electrical power generator coupled to the internal combustion engine. An electronic...
US20100051368 MULTI-POWER SOURCE LOCOMOTIVE SELECTION  
Various control options are applied for selecting the number of operating power sources for a multi-power source vehicle having a number of prime power sources and, optionally including energy...
US20090066173 Linear Drive Travel System and Automobile  
To enable control the number of revolutions of a wheel with a new structure different from an induction motor and adjust the maximum torque rapidly and accurately. A linear drive travel system...
US20120197474 MOTOR VEHICLE WITH ELECTRIC MOTOR  
A motor vehicle comprising an electric motor, at least one battery, and an electronic regulation unit connected to a potentiometer of the accelerator to regulate the power supply of the electric...
US20130151050 ELECTRIC POWER DISSIPATION CONTROL  
A method and apparatus for controlling an electric motor. An electric motor apparatus has an electric motor with motor stator windings, a battery, battery control module coupled to the battery and...
US20120065819 METHOD OF CONTROLLING A HYBRID POWERTRAIN TO ENSURE BATTERY POWER AND TORQUE RESERVE FOR AN ENGINE START AND HYBRID POWERTRAIN WITH CONTROL SYSTEM  
A method includes determining an amount of power currently available from a battery for tractive torque as an amount of power stored in the battery less an amount of power required to power other...
US20100320951 INVERTER DEVICE, ELECTRIC AUTOMOBILE IN WHICH THE INVERTER DEVICE IS MOUNTED, AND HYBRID AUTOMOBILE IN WHICH THE INVERTER DEVICE IS MOUNTED  
A torque limit section that applies limit to a torque instruction value of an electric motor such that a switching elements temperature is restricted to no more than an element upper limiting...
US20120323424 METHOD FOR CONTROLLING AN ELECTRIC MOTOR  
A method for controlling an electric motor for driving a motor vehicle with the aid of a drive train, including: measuring the rotation angle of a rotor of the electric motor multiple times,...
US20110137503 TRAVEL CONTROLLER FOR INDUSTRIAL VEHICLE  
A travel controller for a hybrid forklift includes an acceleration command reference value generation unit, an acceleration limit value generation unit, an acceleration command value determination...
US20110028268 SYSTEM AND METHOD FOR CONTROLLING ENGINE REVOLUTIONS FOR HYBRID CONSTRUCTION MACHINE  
A system and method for controlling engine revolutions for a hybrid construction machine is provided. The system for controlling engine revolutions for a hybrid construction machine, including an...
US20110087391 MOTOR ASSISTANCE FOR A HYBRID VEHICLE BASED ON USER INPUT  
A method of providing assistance for an internal combustion engine in providing driving power for a vehicle using an electric motor coupled to the engine is provided. The method comprises...
US20120261916 POWER-GENERATION MOTOR CONTROL SYSTEM  
A power-generation motor control system is a control system that controls a power-generation motor provided with an armature and a magnetic-field winding, and is characterized in that when the...
US20110125352 METHOD FOR CONTROLLING OUTPUT TORQUE IN POWERTRAINS  
A method of controlling output torque in a hybrid or electric vehicle transmissions includes calculating a first long-term output torque constraint and a first short-term output torque constraint....
US20130325226 Simplified Topology For Trolley Assist-Capable Electric Drive Truck  
A trolley assist-capable electric drive truck includes a DC link with first, second and third contactors that may be opened and closed in different configurations to operate the truck in different...
US20100027170 ELECTRIC VEHICLE  
An electric vehicle includes a control unit having overcurrent generation judgment unit, inverter selection unit, and inverter drive control unit. The overcurrent generation judgment unit judges...
US20130119759 POWER MANAGEMENT APPARATUS, POWER MANAGEMENT METHOD, AND POWER MANAGEMENT SYSTEM  
The power management apparatus provided in a vehicle includes: a switch 6 for bringing a state between the first and second electric power storage devices 1 and 2 into a non-conduction state...
US20140045648 INDUCTION MOTOR-PERMANENT MAGNET GENERATOR TANDEM CONFIGURATION STARTER-GENERATOR FOR HYBRID VEHICLES  
Disclosed in the present invention is a tandem starter-generator construction that includes an induction motor-generator, a permanent magnet motor-generator and power transmission unit disposed...
US20120271497 METHOD AND CONTROL UNIT FOR CONTROLLING A HYBRID DRIVE OF A VEHICLE  
A method for controlling a hybrid drive of a vehicle, the hybrid drive having an electric drive and a fuel drive. A database which has assignments between route information and first and second...
US20070017717 Off-road vehicle with electromotive drive  
A drive system is provided for an off-road vehicle that moves across unprepared terrain such as snow, tundra or ice. A plurality of n flexible airbag tires are in contact with the terrain and are...
US20120083949 SYSTEM AND METHOD FOR CONTROLLING A MOTOR OF A HYBRID VEHICLE  
The invention provides a method for controlling the motor of a hybrid vehicle comprising the steps of detecting states of a plurality of motors and planetary gear sets; deciding total demand...
US20140371967 VIBRATION DAMPING CONTROL APPARATUS  
A vibration damping control apparatus is mounted on a hybrid vehicle provided with an engine and a motor generator coupled with the engine. The vibration damping control apparatus (i) calculates...
US20150127207 Switched Reluctance Generator Integrated Controls  
A control system for a generator of an electric drive is provided. The control system may include a converter circuit configured to communicate with one or more phases of a stator of the...
US20110144843 PERMANENT MAGNET TEMPERATURE ESTIMATION  
A method of controlling a vehicle including a permanent magnet (PM) synchronous motor is provided. The motor is controlled based on direct-axis (d-axis) and quadrature-axis (q-axis) current...
US20110172863 Dynamic Traction Control  
A vehicle in which propulsion can be distributed between first and second axles includes: a first electric motor coupled to the first axle and a second electric motor coupled to the second axle....
US20150025726 HYBRID CONSTRUCTION MACHINE  
Provided is a hybrid construction machine preventing an electrical storage device from overcharge, including a hydraulic actuator, a hydraulic pump, a generator-motor which performs electric...
US20120179320 POWER OUTPUT SYSTEM  
There is provided a power output system 1 comprising an internal combustion engine 6, an electric motor 2 and a transmission 20 including two transmission shafts 11, 16 which are connected to the...
US20140172208 METHOD FOR CONTROLLING THE RECUPERATION BEHAVIOUR IN A MOTOR VEHICLE AND MOTOR VEHICLE  
For controlling a recuperation behavior in a motor vehicle having a hybrid drive or an electric drive, a basic value of a recuperation torque which is to be used for recuperation is predefined...
US20130289809 REGENERATIVE BRAKING CONTROL TO MITIGATE POWERTRAIN OSCILLATION  
A vehicle is provided with at least one wheel and a motor that is coupled to the wheel. The motor is configured to provide regenerative brake torque. The vehicle also includes at least one...
US20150155812 METHOD AND APPARATUS FOR CONTROLLING AN ELECTRICALLY-POWERED TORQUE MACHINE OF A POWERTRAIN SYSTEM  
A method for controlling an electrically-powered torque machine of a powertrain system includes determining a predicted torque command to control the torque machine. A flux command is determined...
US20150203105 ENGINE TORQUE IMBALANCE COMPENSATION IN HYBRID VEHICLE  
A system and method for controlling a fraction motor in a hybrid vehicle includes varying a traction motor torque in response to an engine cylinder misfire. The traction motor torque is varied to...
US20120136522 HYBRID DINGHY PUSHER  
A hybrid dinghy pusher for pushing motorhomes is provided. A hybrid vehicle can be connected to a motorhome by a tow bar for towing the hybrid vehicle. When being towed behind a motorhome, the...
US20140309828 VEHICLE  
Creep control is performed, in response to an accelerator-off operation, to control a second motor to cause a predetermined creep torque Tcr to be output from the second motor to a driveshaft....
US20060225930 Dual axle electric motor drive and method of use  
A method of propelling a heavy-duty series hybrid vehicle including a first wheel driven by a first shaft and a second wheel driven by a second shaft includes independently driving the first shaft...
US20140330475 HYBRID VEHICLE  
After satisfaction of an overrun condition that a tentative torque Tm1tmp of a motor overruns a torque limit Tlim1, a torque command Tm1* of the motor is set by limiting the tentative torque...