Kraftumschaltvorrichtung eines Hybridfahrzeugs

摘要

A power switchover apparatus for a hybrid vehicle is provided which can perform power switchover smoothly with a simple and relatively lightweight configuration. The switchover apparatus has a starting clutch (40) between an engine crankshaft (22) of an engine (20) and an automatic transmission (23), a one-way clutch (44) between the automatic transmission and a drive shaft (60), and a drive motor (21b) connected to said drive shaft (60). On starting, the one-way clutch is idle, and is later connected to switch over the power source to the engine. The switchover apparatus also has target rotational speed setting means (7a) for setting a target rotational speed of the engine (Ne) when the power source is to be switched from motor to engine, and control means (7b,7c) for controlling the engine rotational speed and the transmission ratio of the automatic transmission in response to the target rotational speed.