Internal combustion engine having electric controlled fuel injec

Details Internal combustion engine having electric controlled fuel injec Internal combustion engine having electric controlled fuel injec

1989-06-01

1990-05-15

Neill, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123440, 123489, F02D 4122, F02M 5100

Patent

active

049248375

ABSTRACT:
A fuel injection system for an internal combustion engine wherein an oxygen sensor for detecting a limit electric current is employed for providing a signal indicating an oxygen partial pressure in the gas introduced into the engine. The sensor detects an amount of air newly introduced into the engine. In addition to a map for calculating a basic fuel injection amount from the oxygen partial pressure, a second map is provided for calculating the basic fuel amount from a parameter such as a degree of opening of the throttle valve. A degree of activation of the oxygen sensor is determined by detecting the impedance of the sensor. When it is determined that the oxygen sensor is not activated, the second map is employed in place of the first map to calculate the basic fuel amount based on the degree of opening of the throttle valve.

REFERENCES:
patent: 4005689 (1977-02-01), Barnard
patent: 4108122 (1978-08-01), Barnard
patent: 4272329 (1981-01-01), Hetric et al.
patent: 4614175 (1986-09-01), Asayama
patent: 4705009 (1987-11-01), Asayama
patent: 4741313 (1988-05-01), Shimomura
patent: 4747387 (1988-05-01), Takao et al.
patent: 4770146 (1988-09-01), Shibata et al.
patent: 4800857 (1989-01-01), Conisawa
patent: 4853862 (1989-08-01), Shiraishi et al.
patent: 4854288 (1989-08-01), Uchikawa
patent: 4860712 (1989-08-01), Nakajima et al.

Affiliated with

Also associated with

Rating

Internal combustion engine having electric controlled fuel injec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internal combustion engine having electric controlled fuel injec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal combustion engine having electric controlled fuel injec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-615349