发明名称 |
Energy based transmission friction element diagnostic |
摘要 |
A method to monitor a torque transfer device configured to transfer torque within an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and at least one electric machine includes executing a failure detection strategy in response to a detected slip condition of the torque transfer device. The failure detection strategy includes monitoring a magnitude of energy loss of the torque transfer device. A failure condition in the torque transfer device is detected when the magnitude of energy loss achieves a predetermined energy threshold. |
申请公布号 |
US8718887(B1) |
申请公布日期 |
2014.05.06 |
申请号 |
US201213675010 |
申请日期 |
2012.11.13 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
BOLENBAUGH JONATHAN M.;SYDENSTRICKER JAMES;KAMINSKY LAWRENCE A.;SAH JY-JEN F. |
分类号 |
G06F7/00 |
主分类号 |
G06F7/00 |
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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