Apparatus for detecting throttle opening of an engine

Details Apparatus for detecting throttle opening of an engine Apparatus for detecting throttle opening of an engine

1990-11-08

1991-08-20

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123339, 123480, F02M 5100

Patent

active

050405152

ABSTRACT:
An apparatus for detecting the degree of opening of a throttle valve of an engine. A first value indicating the degree of opening of the throttle valve and a second value indicating the opening of the throttle valve in an idling position are detected and stored. Whether the first value is kept unchanged for a fixed interval is decided when the throttle valve is in an idling position. A stable value of the first values is provided when the first value is kept unchanged for a fixed interval and the throttle valve is in an idling position. Then the second value is updated to the stable value. A value indicating the difference between the stored first and second values is calculated. The calculated value is used to control the amount of fuel supplied to the engine.

REFERENCES:
patent: 4844042 (1989-07-01), Osano
patent: 4903658 (1990-02-01), Miyawa et al.
patent: 4903660 (1990-02-01), Sogawa
patent: 4911133 (1990-03-01), Sogawa
patent: 4960097 (1990-10-01), Tachibara et al.
patent: 4967715 (1990-11-01), Nosaka
patent: 4982709 (1991-01-01), Oota

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