Air/fuel ratio detection device and an air/fuel ratio control de

Details Air/fuel ratio detection device and an air/fuel ratio control de Air/fuel ratio detection device and an air/fuel ratio control de

1997-06-19

2000-05-02

McCall, Eric S.

Measuring and testing

Gas analysis

Gas of combustion

731181, G01M 1500

Patent

active

06055844&

ABSTRACT:
An air/fuel ratio detection device and an air/fuel ratio control device, in which combustion of an engine is controlled with a simple design and toxic substances in exhaust gas discharged from the engine are reduced. Time A during which a lean signal is at a high level is measured. If the time A is shorter than the predetermined value, it is determined that the air/fuel ratio is richer than a target value, and time B during which an electromagnetic valve 21 is open is lengthened, increasing the quantity of supply air and making leaner the fuel mixed air, such that the target air/fuel ratio is approached. If the time A is longer than the predetermined value, it is determined that the air/fuel ratio is leaner and the time B is shortened.

REFERENCES:
patent: 4690121 (1987-09-01), Kawanabe et al.
patent: 4708109 (1987-11-01), Takao
patent: 5231864 (1993-08-01), Ishida et al.
patent: 5253632 (1993-10-01), Brooks
patent: 5323635 (1994-06-01), Ueno et al.
patent: 5353776 (1994-10-01), Burraham et al.
patent: 5381771 (1995-01-01), Leshner
patent: 5709193 (1998-01-01), Svensson et al.

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