发明名称 |
METHOD AND APPARATUS TO CONTROL HYDRAULIC LINE PRESSURE IN AN ELECTRO-MECHANICAL TRANSMISSION |
摘要 |
A method for controlling hydraulic line pressure of a hydraulic control system in transmission includes determining an available flow from a plurality of hydraulic pumps, determining a flow consumption of functions served by the hydraulic control system, determining an estimated hydraulic line pressure based upon the flow from the pumps and the flow consumption, determining a desired hydraulic line pressure, and controlling the hydraulic pumps based upon the desired hydraulic line pressure and the estimated hydraulic line pressure. |
申请公布号 |
US2009112421(A1) |
申请公布日期 |
2009.04.30 |
申请号 |
US20080249379 |
申请日期 |
2008.10.10 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC.;DAIMLER AG;CHRYSLER LLC;BAYERISHE MOTOREN WERKE AKTIENGESELLSCHAFT |
发明人 |
SAH JY-JEN F.;NAQVI ALI K. |
分类号 |
F16H61/06;G06F17/00 |
主分类号 |
F16H61/06 |
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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