Method, control appliance, and computer program for...

Details Method, control appliance, and computer program for... Method, control appliance, and computer program for...

2007-02-13

2007-02-13

Dolinar, Andrew M. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C073S001590, C073S118040

Reexamination Certificate

active

10529111

ABSTRACT:
A method, a control unit, and a computer program for detecting a defective intake-manifold pressure sensor and/or a defective ambient-pressure sensor in an internal combustion engine having a variable valve timing are provided. The desired detection is carried out exclusively on the basis of a direct evaluation of the pressure upstream from the throttle valve and the pressure in the intake manifold. This method eliminates the need for deriving load signals from these pressures, at least for the determination as to whether at least one of the pressure sensors is defective.

REFERENCES:
patent: 6000375 (1999-12-01), Isobe
patent: 6329807 (2001-12-01), Pfitz et al.
patent: 6553964 (2003-04-01), Arai et al.
patent: 6711490 (2004-03-01), Kobayashi et al.
patent: 199 46 874 (2001-04-01), None
patent: 100 21 639 (2002-01-01), None
patent: 1 245 812 (2002-10-01), None

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