Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2009-03-24
2011-10-25
Vo, Hieu T (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S041310
Reexamination Certificate
active
08046150
ABSTRACT:
A temperature comparison module generates a temperature difference between an engine coolant temperature and a radiator coolant temperature. An energy determination module determines an energy value corresponding to heat energy generated by an engine. The heat energy increases at least one of the engine coolant temperature and the radiator coolant temperature. A diagnostic module generates a comparison of the temperature difference and the energy value and determines a status of a thermostat associated with the engine based on the comparison.
REFERENCES:
patent: 4450694 (1984-05-01), Matsuda et al.
patent: 7168398 (2007-01-01), Ap et al.
Anilovich Igor
Siekkinen John W.
Waller Mikaela
Wang Zhong
Yu Jinhee
GM Global Technology Operations LLC
Vo Hieu T
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