Patent ID: 6260644
Filing Date: 2001-07-17
Classification: B60K,B60L,B60W,B60Y,Y02T,Y10S

Abstract:
A motor controlling apparatus for a vehicle comprising:a generator-motor for alternatively providing power to a driven wheel of the vehicle or generating power for use by the vehicle from revolutions of the driven wheel of the vehicle;an accelerator opening sensor for generating an accelerator opening signal indicative of a desired acceleration level;a vehicle speed sensor for generating a vehicle speed signal indiciative of the speed of the vehicle;an aimed driving wheel output power setting means for setting a torque instruction value based on said accelerator opening signal and said vehicle speed signal;a current feedback control means for controlling said generator-motor so that a motor current of said generator-motor equals an aimed current set based on said torque instruction value;a torque sensor for sensing a driving wheel torque of the driven wheel;a torque feedback control means for controlling said generator-motor so that said driving wheel torque equals said torque instruction value;a motor revolution number sensor for detecting a number of revolutions of said generator-motor and for outputting a revolution number signal; anda motor control means for receiving said revolution number signal and for selecting either said current feedback control means or said torque feedback control means to control said generator-motor based upon said revolution number signal, wherein said torque feedback means includes:a deviation calculation means for calculating a deviation between said torque instruction value and said driving wheel torque sensed by said torque sensor; anda proportional plus integral plus derivative control means for performing proportional plus integral plus derivative condensation for an output of said deviation calculation means.