Patent ID: 9656658
Date: 2017-05-23
CPC Classifications: B60K,B60W,B60Y,F16H,Y02T,Y10S

Claim:
1. A power transmission device for a hybrid vehicle, comprising: a power distribution mechanism which includes a plurality of rotation components rotating in different rotation speeds and in which a rotation shaft of an engine, a rotation shaft of a first rotary machine, a rotation shaft of a second rotary machine, and a drive wheel are at least selectively connected to four rotation components among the rotation components; a friction engagement device which is interposed between the engine and the rotation component connected to the engine; and a control device which performs a stop control for the engine and a release control for the friction engagement device so as to cause the vehicle to travel only by the power of the second rotary machine and performs an engagement control for the friction engagement device while the vehicle travels only by the power of the second rotary machine so as to perform a push-start of the engine, wherein the control device controls the first rotary machine so that the friction engagement device is maintained in a half engagement state at a differential rotation speed higher than a predetermined rotation speed and ignites the engine in the half engagement state of the friction engagement device during the push-start of the engine.