Closed loop fuel control system with hysteresis

Details Closed loop fuel control system with hysteresis Closed loop fuel control system with hysteresis

1993-12-06

1995-07-25

Agenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4114

Patent

active

054352908

ABSTRACT:
A closed loop fuel control system for controlling air/fuel ratio in response to exhaust gas oxygen signals includes a selective hysteresis function to prevent high frequency switching after a noise spike. This improves fuel control system noise protection without introducing permanent time delays.

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patent: 4364356 (1982-12-01), Gerhold
patent: 4402291 (1983-09-01), Aono
patent: 4811557 (1989-03-01), Okumura et al.
patent: 4905469 (1990-03-01), Matsuoka
patent: 4932383 (1990-06-01), Zechnall et al.
patent: 5115639 (1992-05-01), Gopp

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