Hybrid vehicle drive system with clutch for controlling engine driven planetary gear connected to motor/generator

摘要

A hybrid drive system (8, 120, 130, 210) for a motor vehicle, having an engine (10, 212) operated by combustion of a fuel, an electric energy storage device (114, 258) for storing an electric energy, a motor/generator (12, 214) connected to the electric energy storage device, and a synthesizing/distributing mechanism (14, 216) which includes a first rotary element (144, 216r), a second rotary element (14s, 216s) connected to the motor/generator, and a third rotary element (14c, 216c), and an output member (18, 226) connected to the third rotary element, wherein a first clutch (16, CE1) is provided for connecting the first rotary element (14r, 216r) and the engine, and a second clutch (20, CE2) is provided for connecting two elements of the first, second and third rotary elements of the synthesizing/distributing mechanism, for rotation of the two elements as a unit.