Air-fuel ratio control apparatus

Details Air-fuel ratio control apparatus Air-fuel ratio control apparatus

1989-06-15

1991-10-01

Lall, Parshotam S.

Boots, shoes, and leggings

36443101, 123489, G06F 1548, G06F 1550, G06G 770, F02M 5100

Patent

active

050539680

ABSTRACT:
An air-fuel ratio control apparatus comprises a broad range air-fuel ratio sensor to detect continuously an air-fuel ratio on the basis of components of exhaust gas from an engine, a determining means to determine a correction coefficient by obtaining an error between the target air-fuel ratio and an actual air-fuel ratio, an integrating means to integrate the correction coefficient, a non-volatile memory to store the integrated value as information of correction in relation to operational conditions of the engine, a processing means to calculate a basic fuel injection quantity on the basis of the operational conditions of the engine, and a correction means to correct the basic fuel injection quantity depending on the information of correction.

REFERENCES:
patent: 4467770 (1984-08-01), Arimura et al.
patent: 4788958 (1988-12-01), Nakajima et al.

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