CONTROL DEVICE FOR HYBRID VEHICLE

摘要

The control device of the present invention causes an engine to perform both partial cylinder operation and also all-cylinder operation, and moreover changes the operating point of the engine when the motor torque of a second motor-generator enters into operating point changeover ranges R1 and R2. The operating point changeover range R2 when the engine is performing partial cylinder operation is set to be wider, as compared to the operating point changeover range R1 when the engine is performing all-cylinder operation.

主权项

1. A control device for a hybrid vehicle, that is applied to a hybrid vehicle comprising:
an engine that is capable of performing high torque fluctuation operation in which fluctuation of the output torque is high and low torque fluctuation operation in which fluctuation of the output torque is low; a first electric motor; an output unit for transmitting torque to drive wheels; a differential mechanism that distributes torque of the engine to the first electric motor and the output unit; and a second electric motor that is linked to the output unit via a gear; and that causes the engine to execute the high torque fluctuation operation and the low torque fluctuation operation, and moreover changes the operating point of the engine when the torque of the second electric motor is within a predetermined range; wherein the predetermined range is set to be wider when the engine is executing the high torque fluctuation operation, as compared to when the engine is executing the low torque fluctuation operation.