| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce torque shock when stopping an engine while an output shaft of the engine and a rotary shaft of a motor rotate integrally in a hybrid car having the engine and the motor to improve drivability. <P>SOLUTION: When an accelerator is turned off and braking power Po is demanded for a driving shaft, the engine is once operated and controlled by zero torque (S114), and spark advance angle FT is gradually adjusted to a lag side from this condition (S116). During this period, the braking power Po is held by braking force by regenerative braking of the motor (S118). When the spark advance angle FT is delayed up to a predetermined amount, fuel to be supplied to the engine is shut off, and the braking power Po is held by braking force by rotation resistance of the engine and braking force by regenerative braking of the motor (S126 to S132). Consequently, torque shock can be reduced because torque fluctuation when stopping the engine can be reduced. <P>COPYRIGHT: (C)2004,JPO |
