发明名称 |
DIAGNOSTIC SYSTEM AND METHOD FOR A SWITCHABLE WATER PUMP |
摘要 |
A system includes a pump control module and a pump diagnostic module. The pump control module switches a switchable water pump from off to on. The pump diagnostic module diagnoses a fault in the switchable water pump based on a first difference between an engine material temperature and an engine coolant temperature when the switchable water pump is switched from off to on. The engine coolant temperature is a temperature of coolant circulated through an engine and the engine material temperature is a temperature of at least one of an engine block and a cylinder head.
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申请公布号 |
US2013089436(A1) |
申请公布日期 |
2013.04.11 |
申请号 |
US201113269048 |
申请日期 |
2011.10.07 |
申请人 |
BIALAS DANIEL A.;LEVIJOKI STEPHEN PAUL;SIEKKINEN JOHN W.;ANILOVICH IGOR;BILANCIA MICHELE;BRUNO MORENA;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
BIALAS DANIEL A.;LEVIJOKI STEPHEN PAUL;SIEKKINEN JOHN W.;ANILOVICH IGOR;BILANCIA MICHELE;BRUNO MORENA |
分类号 |
F04B49/10 |
主分类号 |
F04B49/10 |
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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