发明名称 |
METHOD FOR CONTROLLING A HYBRID POWERTRAIN SYSTEM BASED UPON HYDRAULIC PRESSURE AND CLUTCH REACTIVE TORQUE CAPACITY |
摘要 |
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.
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申请公布号 |
US2009118935(A1) |
申请公布日期 |
2009.05.07 |
申请号 |
US20080251461 |
申请日期 |
2008.10.15 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC.;DAIMLER AG;CHRYSLER LLC;BAYERISHE MOTOREN WERKE AKTIENGESELLSCHAFT |
发明人 |
HEAP ANTHONY H.;SAH JY-JEN F. |
分类号 |
B60L15/20;B60W30/18;G06F17/00;G06F19/00 |
主分类号 |
B60L15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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