Pressure sensor device of internal combustion engine

Details Pressure sensor device of internal combustion engine Pressure sensor device of internal combustion engine

2006-04-04

2006-04-04

Solis, Erick (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S688000, C123S690000, C123S684000

Reexamination Certificate

active

07021292

ABSTRACT:
A pressure sensor device of an internal combustion engine includes: a pressure sensor detecting a pressure in an intake pipe of an internal combustion engine, a pressure sensor failure determination device determining a failure of the pressure sensor, an idle determination device detecting that an opening of a throttle adjusting an air quantity supplied to the internal combustion engine is in an idle position, and a pressure sensor output value control device limiting an output value from the pressure sensor for use in a fuel injection quantity control of the internal combustion engine to be not more than a predetermined value when the throttle opening is determined by the idle determination device to be in the idle position and when the pressure sensor is not determined as being in failure by the pressure sensor failure determination device. This pressure sensor device prevents the over-rich of fuel injection quantity.

REFERENCES:
patent: 5384707 (1995-01-01), Kerns et al.
patent: 5404843 (1995-04-01), Kato
patent: 5505179 (1996-04-01), Brennan
patent: 6250292 (2001-06-01), Suhre
patent: 07-293303 (1995-11-01), None
patent: 11-082132 (1999-03-01), None
patent: 2001-132521 (2001-05-01), None

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