Exhaust gas recirculation method for internal combustion engines

Details Exhaust gas recirculation method for internal combustion engines Exhaust gas recirculation method for internal combustion engines

1986-09-24

1988-07-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60278, 74860, 123571, F02M 2506

Patent

active

047576839

ABSTRACT:
The valve opening of an exhaust gas recirculating valve is controlled in response to operating conditions of the engine so as to regulate the amount of exhaust gas recirculation to values appropriate to the operating conditions of the engine. The valve opening of the exhaust gas recirculating valve is varied by a predetermined value when the engine is determined to be in a predetermined accelerating condition or a predetermined decelerating condition. Further, the predetermined value is corrected in accordance with the detected shift lever position. Preferably, the valve opening of the exhaust gas recirculating valve is increased or decreased by a predetermined incremental value or a predetermined decremental value when the engine is in the predetermined accelerating condition or the predetermined decelerating condition, and the predetermined incremental value or the predetermined decremental value is corrected in accordance with the detected position of the shift lever.

REFERENCES:
patent: 4165722 (1979-08-01), Aoyama
patent: 4257381 (1981-03-01), Yuzawa
patent: 4454855 (1984-06-01), Otobe
patent: 4467673 (1984-08-01), Hamada
patent: 4541398 (1985-09-01), Kishi
patent: 4596164 (1986-06-01), Hasegawa

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