Patent ID: 9604530
Date: 2017-03-28
CPC Classifications: B60K,B60Y,F16H,Y02T,Y10S

Claim:
1. A drive system for a hybrid vehicle, the drive system comprising: an engine; a rotary machine arranged coaxially with the engine; a differential unit connecting the engine and the rotary machine to a drive wheel side, the differential unit being arranged coaxially with the engine and the rotary machine, the differential unit being arranged between the engine and the rotary machine; a transmission unit changing rotation of the engine in speed and transmitting the rotation to the differential unit, the transmission unit being arranged coaxially with the engine, the rotary machine and the differential unit, and the rotary machine and the differential unit being arranged between the transmission unit and the engine, wherein the transmission unit includes a planetary gear unit which is configured to transmit rotation of the engine to the differential unit and a shift device which is configured to shift a speed ratio of the planetary gear unit, the planetary gear unit is of a double pinion type, and the shift device is arranged between the planetary gear unit and the rotary machine.