Fuel control system for an internal combustion engine

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

1980-02-27

1982-04-06

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Including means responsive to instantaneous change in engine...

123419, F02B 3300, F02M 700, F02P 504

Patent

active

043230423

ABSTRACT:
An i.e. engine fuel control system includes a main fuel control which controls fuel flow to the engine in accordance with one or more engine operating parameters. The operation of the fuel control can be modified by a roughness sensing circuit which produces a roughness signal output dependent on the magnitude of fluctuations of engine speed. This output is applied to an integrator which provides a limited authority trim signal to the fuel control in accordance with the time integral of the error between the roughness signal and a speed-dependent reference signal generated by a speed-shaping circuit.

REFERENCES:
patent: 3789816 (1974-02-01), Taplin
patent: 3897762 (1975-08-01), Jones
patent: 3981287 (1976-09-01), Williams
patent: 4044234 (1977-08-01), Frobenius
patent: 4092955 (1978-06-01), Reddy
patent: 4153013 (1979-05-01), Bianchi
patent: 4161162 (1979-07-01), Latsch
patent: 4188920 (1980-02-01), Bianchi
patent: 4197767 (1980-04-01), Leung

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