Closed-loop air-fuel ratio controller

Details Closed-loop air-fuel ratio controller Closed-loop air-fuel ratio controller

1992-02-28

1993-11-23

Myracle, Jerry W.

Measuring and testing

Gas analysis

Gas of combustion

G01N 2712

Patent

active

052633586

ABSTRACT:
Oxygen sensor temperature and switching frequency compensation is provided to engine air-fuel ratio control, wherein the drift in the sensor voltage corresponding to stoichiometry is modeled and accounted for in the control, providing improved accuracy in conventional closed-loop engine air-fuel ratio control.

REFERENCES:
patent: 4278060 (1981-07-01), Isobe et al.
patent: 4344317 (1982-08-01), Hattori et al.
patent: 4953351 (1990-09-01), Motz et al.

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