Patent ID: 9677655
Date: 2017-06-13
CPC Classifications: B60K,B60W,B60Y,F16H,Y02T,Y10S

Claim:
1. A hybrid vehicle driving device comprising: a first differential mechanism connected to an engine and transmitting a rotation of the engine; a second differential mechanism connecting the first differential mechanism and a drive wheel; a plurality of engagement devices changing a speed of the first differential mechanism; and a valve arranged in a hydraulic circuit supplying a hydraulic pressure to the plurality of engagement devices, and selectively preventing the plurality of engagement devices from simultaneously engaging; and an electronic control unit configured to control the valve to switch a state of preventing the plurality of engagement devices from simultaneously engaging and a state of allowing the plurality of engagement devices to simultaneously engage, wherein the second differential mechanism includes a first rotation element connected to an output element of the first differential mechanism, a second rotation element connected to a first rotating machine, and a third rotation element connected to a second rotating machine and the drive wheel, the electronic control unit is configured to control the valve to prevent the plurality of engagement devices from simultaneously engaging at a time of traveling with the engine as a power source, and control the valve to allow the plurality of engagement devices to simultaneously engage at a time of traveling with the first rotating machine and the second rotating machine as the power source.