发明申请
- 专利标题： DIAGNOSTIC SYSTEMS FOR COOLING SYSTEMS FOR INTERNAL COMBUSTION ENGINES
- 专利标题（中）： 用于内燃机冷却系统的诊断系统
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申请号： US12245300申请日： 2008-10-03
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公开(公告)号： US20090293600A1公开(公告)日： 2009-12-03
- 发明人: John Coppola , Jose L. Deleon , James M. Dixon
- 申请人： John Coppola , Jose L. Deleon , James M. Dixon
- 申请人地址： US MI DETROIT
- 专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址： US MI DETROIT
- 主分类号： G01M15/04
- IPC分类号： G01M15/04
摘要：
A control system for an engine system includes a temperature sensor and a diagnostic module. The temperature sensor measures an outlet temperature at an outlet of a cooling system. The diagnostic module estimates the cooling fluid temperature, determines the cooling performance based on the outlet temperature and the cooling fluid temperature, and selectively diagnoses a fault in the cooling system based on the cooling performance and a predetermined threshold.
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