Hybrid vehicle driving device

摘要

A hybrid vehicle driving device including an engine drive system transmitting a drive force of an engine to a transmission through a one-way clutch and transmitting a drive force after shifting by the transmission to a rear wheel and a motor drive system transmitting a drive force of a motor to the rear wheel, the drive force of the motor of the motor drive system is joined to a point upstream the transmission and downstream the one-way clutch in the engine drive system. The transmission includes a twin clutch capable of shifting between neighboring shift gears by alternately switching the connection state of a clutch on one side and a clutch on the other side, and is automatically shifted to produce an optional rotational speed and motor torque at which the electric power generation efficiency becomes high at the time of regeneration control of the motor.

主权项

1. A hybrid vehicle driving device comprising:
an engine drive system transmitting drive force of an engine to a multi-speed transmission through a drive force connecting/disconnecting device and transmitting the drive force after shifting by the multi-speed transmission to a rear wheel, said drive force connecting/disconnecting device comprises a clutch whose engagement/disengagement is controlled by a control section; and a motor drive system transmitting a drive force of a motor to the rear wheel, wherein the drive force of the motor of the motor drive system is joined to a point upstream the multi-speed transmission and downstream the drive force connecting/disconnecting device in the engine drive system; the multi-speed transmission is an automatic transmission capable of optionally switching a shift gear according to a command of the control section; and the control section is configured, during regeneration control through back driving of the motor, to:
control the clutch to disengage so as to not transmit drive force inputted from the transmission side to the engine side; and,automatically control the multi-speed transmission so that a shift gear is selected such that rotational speed and torque of the motor at which electric power generation efficiency becomes high are produced.