CONTROL DEVICE FOR ELECTRIC ROTARY MACHINE

摘要

A MGECU in a control device mounted on a vehicle has a feedback control section, a correction torque calculation section, an instruction torque calculation section. The feedback control section calculates a torque to be used for performing a feedback control of an actual rotation speed to follow a target rotation speed. The correction torque calculation section calculates a correction torque based on a change rate of the target rotation speed and inertia of a rotary body which includes the motor generator. When the target rotation speed is changed to decrease a difference between the target rotation speed and the actual rotation speed, the correction torque calculation section reduces the correction torque. The instruction torque calculation section adds the torque calculated by the feedback control section and the correction torque calculated by the correction torque calculation section in order to obtain the instruction torque to be used for the motor generator.

主权项

1. A control device for an electric rotary machine as a drive power source of a motor vehicle, comprising:
an instruction torque calculation means capable of calculating an instruction torque of an electric rotary machine on the basis of a target rotation speed of the electric rotary machine; a correction torque calculation means capable of calculating a correction torque in order for an actual rotation speed of the electric rotary machine to follow the target rotation speed on the basis of a change rate of the target rotation speed per predetermined time and an inertia of a rotary body comprising the electric rotary machine; a correction means capable of correcting the instruction torque by using the correction torque calculated by the correction torque calculation means; a drive means capable of driving the electric rotary machine on the basis of the instruction torque which has been corrected by the correction means; and a correction rate correction means capable of decreasing the correction torque to be used for correcting the instruction torque, when the target rotation speed changes to decrease a difference between the target rotation speed and the actual rotation speed.