CONTROLLER FOR HYBRID VEHICLE

摘要

PROBLEM TO BE SOLVED: To suppress motor overshoot when an engine is started by a motor.

SOLUTION: The deviation of a motor rotation speed instruction value Nmtr from a motor rotation speed detection value N is PI (proportional integration)- controlled, to calculate a motor torque instruction value Tpi for agreement between the motor rotation speed detection value N and the motor rotation speed instruction value Nmtr. The rotation speed of motor is estimated using mathematized models (1) and (2) which represent transition of the rotation speed of motor relative to the change of motor rotation speed instruction value Tmtr, to calculate a motor torque correction value ΔT to make the motor rotation speed detection value N agree with a motor rotation speed estimation value N'. Then, the motor torque instruction value Tpi is added with the motor torque correction value ΔT to acquire an eventual motor torque instruction value Tref1. The current running the motor is controlled based on the eventual motor torque instruction value Tref1.

COPYRIGHT: (C)2003,JPO