Engine control apparatus

Details Engine control apparatus Engine control apparatus

2007-05-01

2007-05-01

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

C307S010100

Reexamination Certificate

active

11408917

ABSTRACT:
It is an object of the present invention to provide an engine control apparatus for detecting a voltage abnormality caused in a power supply thereof at low cost. An engine control apparatus for controlling an engine, includes: power supply voltage detecting unit for detecting a power supply voltage of a battery mounted on a vehicle as a power supply, which supplies the engine control apparatus with power; backup power supply voltage detecting unit for detecting a backup power supply voltage of a backup power supply, which supplies the engine control apparatus with power from the battery via a different path; voltage difference calculating unit for calculating a voltage difference between the power supply voltage and the backup power supply voltage; and power supply voltage abnormality determining unit for determining that there is an abnormality in the power supply voltage when the voltage difference is not within a predetermined range.

REFERENCES:
patent: 5848659 (1998-12-01), Karg et al.
patent: 6114775 (2000-09-01), Chung et al.
patent: 6975046 (2005-12-01), Sumimoto
patent: 2001-069681 (2001-03-01), None
patent: 2004-328820 (2004-11-01), None

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