Invention Grant
- Patent Title: Diagnostic systems for cooling systems for internal combustion engines
- Patent Title (中): 内燃机冷却系统诊断系统
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Application No.: US12245300Application Date: 2008-10-03
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Publication No.: US07918129B2Publication Date: 2011-04-05
- Inventor: John Coppola , Jose L. Deleon , James M. Dixon
- Applicant: John Coppola , Jose L. Deleon , James M. Dixon
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: G01M15/04
- IPC: G01M15/04
Abstract:
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.
Public/Granted literature
- US20090293600A1 DIAGNOSTIC SYSTEMS FOR COOLING SYSTEMS FOR INTERNAL COMBUSTION ENGINES Public/Granted day:2009-12-03
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