Air-fuel ratio control system

Details Air-fuel ratio control system Air-fuel ratio control system

1985-03-11

1986-10-28

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02D 4114

Patent

active

046192352

ABSTRACT:
An air-fuel control system for an automotive engine which keeps the engine idling speed at a predetermined value. In the system, engine idling state is determined by signals from an idle-switch, and a neutral switch provided in a transmission. When the number of peaks of the fluctuating feedback signal of a feedback control circuit exceeds a predetermined value, the feedback signal is fixed to a predetermined value, so that air-fuel ratio is fixed to a value, thereby keeping the idling speed to a constant value.

REFERENCES:
patent: 4241710 (1980-12-01), Peterson, Jr. et al.
patent: 4425895 (1984-01-01), Yoshida et al.
patent: 4502443 (1985-03-01), Hasegawa et al.

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