Electronic control system for an IC engine

Details Electronic control system for an IC engine Electronic control system for an IC engine

1986-10-16

1988-02-09

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, F02M 5100

Patent

active

047235225

ABSTRACT:
In an engine management system which stores a control value FBPOS and increments or decrements this according to whether an oxygen sensor in the exhaust stream indicates that the engine is running lean or rich and which controls the duration of pulses applied to fuel injectors of the engine according to the deviation of the actual control value FBPOS from a reference value, a compensating adjustment is determined and applied to the pulse length duration in order to reduce any difference in the level of the actual control value FBPOS as between the closed-throttle running condition and either the open-throttle running condition or the reference value. The system thus serves to reduce the time taken to readjust upon opening and closing of the throttle and to minimize the emission of pollutants from the engine exhaust.

REFERENCES:
patent: 4392471 (1983-07-01), Miyagi et al.
patent: 4441473 (1984-04-01), Isomura et al.
patent: 4502443 (1985-03-01), Hasegawa et al.
patent: 4509489 (1985-04-01), Hasegawa et al.

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