Dual-sensor type air-fuel ratio control system for internal comb

Details Dual-sensor type air-fuel ratio control system for internal comb Dual-sensor type air-fuel ratio control system for internal comb

1994-09-21

1995-08-08

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having means analyzing composition of exhaust gas

60277, 60285, 123696, F01N 320

Patent

active

054388279

ABSTRACT:
A dual-sensor type air-fuel ratio control system for an internal combustion engine. A catalytic converter is disposed within an exhaust pipe for purifying an exhaust gas. A first air-fuel ratio sensor 11 is disposed upstream of the catalyst for detecting concentration of a particular component of the exhaust gas to output a first air-fuel ratio signal V1 indicating the concentration. A second air-fuel ratio sensor 12 is disposed downstream of the catalyst for detecting concentration of the particular exhaust gas component to output a second air-fuel ratio signal V2 indicating the concentration. An electronic control unit M8 controls a target air-fuel ratio of a mixture supplied to the engine by arithmetically determining an air-fuel ratio control quantity on the basis of the first and second air-fuel ratio signals.

REFERENCES:
patent: 3939654 (1976-02-01), Creps
patent: 4251989 (1981-02-01), Norimatsu
patent: 5060473 (1991-10-01), Nakagawa
patent: 5207056 (1993-05-01), Benninger
patent: 5220788 (1993-06-01), Kurtia
patent: 5224345 (1993-07-01), Schnaibel
patent: 5279114 (1994-01-01), Kurita
patent: 5280707 (1994-01-01), Nakashima
patent: 5301501 (1994-04-01), Shimizu
patent: 5307625 (1994-05-01), Junginger
patent: 5311737 (1994-05-01), Komatsu

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