发明名称 |
Method of undervoltage protection during engine cranking |
摘要 |
A method for controlling the cranking of an engine of a vehicle powertrain system having a rechargeable energy storage system that is adapted to provide electric power to an electric machine, wherein the system is adapted to exit from the engine crank state as a function of an output voltage of the energy storage system to the electric machine during the crank state, if the output voltage is less than a crank undervoltage threshold for a predetermined crank time. According to the method, the crank undervoltage threshold is a function of the number of failed start attempts, generally decreasing as a function of the number of failed start attempts. The predetermined crank time is a function of a magnitude of a difference between the output voltage and the crank undervoltage threshold.
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申请公布号 |
US7277781(B2) |
申请公布日期 |
2007.10.02 |
申请号 |
US20040845999 |
申请日期 |
2004.05.14 |
申请人 |
DAIMLERCHRYSLER CORPORATION |
发明人 |
CAWTHORNE WILLIAM R.;NITZ LARRY T. |
分类号 |
G06F17/00;B60K6/02;B60W10/08;B60W20/00;F02N11/00;F02N11/08;G05B19/04 |
主分类号 |
G06F17/00 |
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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