CONTROLLER FOR ELECTRIC VEHICLE

摘要

A controller for electric vehicle capable of performing appropriate torque control by detecting wheelspin or skidding even when a small variation in acceleration or deceleration undetectable as a deviation in acceleration or deceleration exists in the acceleration or deceleration of an electric vehicle. A first threshold a1 for detecting variations in the acceleration S2 of the shaft speed, which is the maximum speed (minimum speed during deceleration operation) among the rotational speeds of a plurality of motors for driving a plurality of driving wheel shafts, respectively, is set with reference to an absolute acceleration determined depending on the use conditions of the vehicle. When the acceleration S2 exceeds the first threshold a1, the system for generating a target torque command value localized based on the deviation in acceleration by bringing the comparator circuit output S3 to "0" level is separated so that a target torque command value TP subjected to reduction processing by a primary delay circuit (14) can be outputted in a processing period designated by a delay time generation circuit output S4.