发明授权
- 专利标题： Low coolant temperature fault diagnostic systems and methods
- 专利标题（中）： 冷却液温度低故障诊断系统和方法
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申请号： US13606619申请日： 2012-09-07
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公开(公告)号： US09103267B2公开(公告)日： 2015-08-11
- 发明人: Stephen Paul Levijoki , John W. Siekkinen , Nicholas Sup , Eric E. Klauser
- 申请人： Stephen Paul Levijoki , John W. Siekkinen , Nicholas Sup , Eric E. Klauser
- 主分类号： F01P11/16
- IPC分类号： F01P11/16 ; F02D41/22 ; F01P11/14 ; F02D41/06 ; F02D41/12
摘要：
A diagnostic system for a vehicle includes a comparison module, a disabling module, and a fault indication module. The comparison module indicates whether a temperature of engine coolant is less than a first predetermined temperature. The disabling module disables the comparison module until the temperature of the engine coolant is greater than a second predetermined temperature. The fault indication module diagnoses a fault in response to the comparison module indicating that the temperature of the engine coolant is less than the first predetermined temperature.
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