MOTOR TORQUE CONTROLLER OF ELECTRIC VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a motor torque controller of an electric vehicle which realizes smooth and natural acceleration corresponding to accelerator operation, when the vehicle pulls away and on other occasions. SOLUTION: A creep torque is set based on a vehicle speed detected by a vehicle speed detecting means 13, and an accelerator torque is set based on the amount of accelerator operation detected by an accelerator operated amount setting means 12. The detected creep torque and accelerator torque are added together to calculate a powering torque command value. As a result, it is possible to increase accelerator torque, immediately after accelerator operation is started to pull away, so that the vehicle can swiftly drive off. Furthermore, after pulling away, creep torque is reflected in powering torque command value to prevent its abrupt drop.