Fuel supply control system for an internal combustion engine

Details Fuel supply control system for an internal combustion engine Fuel supply control system for an internal combustion engine

1981-01-30

1983-06-14

Cuchlinski, Jr., William A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123340, 123350, F02D 3300

Patent

active

043876811

ABSTRACT:
Fuel consumption of a declerating automotive vehicle internal combustion engine is reduced while preventing stalling. In response to a valve for selectively supplying air and fuel to the engine being in a fully closed condition, a first signal is derived. In response to the engine speed dropping below a first predetermined value a second signal is derived. In response to derivation of the first and second signals a controller for the valve is activated. The controller responds to engine and brake responsive parameters of the vehicle for opening the valve in respone to any of: (a) the engine being decelerated under no load, and (b) the brake being abruptly applied and (c) the engine speed dropping below a second value. The second value is less than the first value and is determined in response to the rate of change of engine speed.

REFERENCES:
patent: 3570460 (1971-03-01), Rabus
patent: 3703162 (1972-11-01), Aono
patent: 4243002 (1981-01-01), Freyer et al.
patent: 4253437 (1981-03-01), Haramoto
patent: 4305365 (1981-12-01), Itzuka et al.

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