Electronic control for internal combustion engine

Details Electronic control for internal combustion engine Electronic control for internal combustion engine

1982-07-09

1984-09-04

Lall, Parshotam S.

Internal-combustion engines

Charge forming device

Fuel injection system

123480, F02M 5100

Patent

active

044690746

ABSTRACT:
In an electronic digital control system for engine, a throttle position is sensed at predetermined time intervals to detect a variation thereof from the previous time to the present time, and, after modifying the detected variation by a correction coefficient related to a cooling water temperature to obtain the modified variation, the previous value of a fuel injection amount correction factor computed at the time of previous computation is added to the value of the modified variation to compute the sum. Then, a predetermined subtraction constant is subtracted from the sum to compute the difference therebetween, thereby obtaining the new data of the fuel injection amount correction factor, and this new factor is used to correct the basic fuel amount computed separately on the basis of the operating condition of the engine.

REFERENCES:
patent: 4257377 (1981-03-01), Kinugawa et al.
patent: 4356803 (1982-11-01), Miyagi
patent: 4359993 (1982-11-01), Carlson
patent: 4366541 (1982-12-01), Mouri et al.
patent: 4388906 (1983-06-01), Sugiyama et al.

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