Antonelli, Terry, Stout & Kraus
Control system for electric vehicle
 An electric vehicle control system, according to the present invention, comprises at least two electric motors for independently driving left and right wheels of the vehicle, power supply unit for supplying power to the motors, unit for detecting command entered by a driver of the vehicle and driving operational amount provided for the vehicle, unit for detecting output torques of the two motors, unit for calculating a motor speed difference command signal for making the two output torques consistent with each other, unit for calculating a vehicle speed command signal for the vehicle on the basis of detected command and the driving operational amount, unit for calculating motor speed command signals for respective of the motors on the basis of calculated motor speed difference command signal and the vehicle speed command signal, unit for detecting actual speeds of the two motors, and control unit for voltage controlling supply power from the power supply unit to the motors so that the detected actual speeds of the motors become consistent with the motor speed commands for respective motors. 
Hitachi, Ltd. Hitachi Automotive Engineering Co., Ltd.
Y B Y Y B
Y02T B60L Y02T Y02T B60L
additional inventional additional additional inventional
Hiroyuki Yuusuke Sanshiro Hirohisa Ryoso
Yamada Takamoto Obara Yamamura Masaki