Engine-controlling atmospheric pressure detection system

Details Engine-controlling atmospheric pressure detection system Engine-controlling atmospheric pressure detection system

1994-11-01

1996-07-02

Zanelli, Michael

Boots, shoes, and leggings

123380, 364558, F02D 4118

Patent

active

055329306

ABSTRACT:
An engine-controlling atmospheric pressure detection system which is capable of detecting atmospheric pressure highly frequently, even during descending, based on a signal from a pressure sensor for detecting air-intake pressure. An actual air-intake pressure is normalized in relation to air-intake pressures at high and low altitudes, respectively, when a throttle valve is closed, which pressures have been stored in a ROM, thereby determining the resultant value as a parameter. The atmospheric pressure is thus detected from the minimum value of such a parameter.

REFERENCES:
patent: 4590563 (1986-05-01), Matsumura et al.
patent: 4748955 (1988-06-01), Yonekawa et al.
patent: 4864998 (1989-09-01), Onishi
patent: 5315979 (1994-05-01), Kako
patent: 5383430 (1995-01-01), Kamiya

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