Invention Grant
- Patent Title: Low air conditioning refrigerant detection method
- Patent Title (中): 低空调制冷剂检测方法
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Application No.: US13172192Application Date: 2011-06-29
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Publication No.: US08830079B2Publication Date: 2014-09-09
- Inventor: Mark G. Smith , Trent G. Sutherland
- Applicant: Mark G. Smith , Trent G. Sutherland
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Tung & Associates
- Agent David Kelley, Esq.
- Main IPC: G08B5/00
- IPC: G08B5/00 ; G01K13/00 ; G01M1/38 ; G05B13/00 ; G05B15/00 ; F25B49/00
Abstract:
A low air conditioning refrigerant detection method for a vehicle air conditioning system includes measuring an evaporator core outlet refrigerant temperature, measuring an evaporator core outlet air thermistor temperature, calculating a refrigerant to air temperature delta value based on difference between the evaporator core outlet refrigerant temperature and the evaporator core outlet air thermistor temperature and determining system refrigerant charge level based on the refrigerant to air temperature delta value.
Public/Granted literature
- US20130002446A1 LOW AIR CONDITIONING REFRIGERANT DETECTION METHOD Public/Granted day:2013-01-03
Information query
