发明名称 |
Method for controlling a hybrid powertrain system based upon hydraulic pressure and clutch reactive torque capacity |
摘要 |
<p>A powertrain system includes an engine coupled to an electro-mechanical transmission to transfer power between the engine and a plurality of torque generating machines and an output member. The transmission is operative in one of a plurality of operating range states through selective application of torque transfer clutches and the engine is operatively coupled to a main hydraulic pump to supply pressurized fluid to a hydraulic circuit operative to apply the torque transfer clutches. A method for controlling the powertrain system includes determining an output torque request to the output member, determining a pressure output of the main hydraulic pump based upon an engine input speed, calculating a clutch reactive torque capacity for each applied torque transfer clutch based upon the pressure output of the main hydraulic pump, and determining a preferred engine input speed to achieve the clutch reactive torque capacity to meet the output torque request to the output member.</p> |
申请公布号 |
EP2070795(A2) |
申请公布日期 |
2009.06.17 |
申请号 |
EP20080019033 |
申请日期 |
2008.10.30 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC;DAIMLER AG;CHRYSLER LLC;BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT |
发明人 |
HEAP, ANTHONY H.;SAH, JY-JEN F. |
分类号 |
B60W30/18;B60W20/00 |
主分类号 |
B60W30/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|