Invention Grant
- Patent Title: Fault isolation in electronic returnless fuel system
- Patent Title (中): 电子无返回燃油系统故障隔离
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Application No.: US13400216Application Date: 2012-02-20
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Publication No.: US08770015B2Publication Date: 2014-07-08
- Inventor: Youssef A. Ghoneim
- Applicant: Youssef A. Ghoneim
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G01M15/05
- IPC: G01M15/05

Abstract:
A method for detecting and isolating an actual fault in a fuel delivery system having a fuel pump and a fuel pump motor, includes monitoring fuel pressure, pump current, and pump voltage. Each of a plurality of fault triggers are designated as one of flagged and un-flagged based on at least one of the fuel pressure, the pump current and the pump voltage. The actual fault in the fuel delivery system is isolated from a plurality of possible faults when a condition respective to one of the possible faults is satisfied based on at least one of the plurality of fault triggers designated as flagged and un-flagged.
Public/Granted literature
- US20130213123A1 FAULT ISOLATION IN ELECTRONIC RETURNLESS FUEL SYSTEM Public/Granted day:2013-08-22
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