Method and apparatus for detecting intake air state quantity in

Details Method and apparatus for detecting intake air state quantity in Method and apparatus for detecting intake air state quantity in

1990-03-13

1991-01-29

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

731182, 7386434, 364510, F02D 4118, G01N 122

Patent

active

049878778

ABSTRACT:
A method and apparatus for detecting an intake air state quantity in an internal combustion engine, where a detected value of an intake air state quantity participating in the quantity of air sucked in the engine, are dislosed. The method and apparatus are constructed so that a random number is generated, the frequency time of the above-mentioned sampling is variably set based on this random number, and the sampling frequency of the detected value of the intake air state quantity is randomly changed.

REFERENCES:
patent: 4091675 (1978-05-01), Jennison
patent: 4407251 (1983-10-01), Nakanishi
patent: 4660422 (1987-04-01), Eads et al.
patent: 4683539 (1987-07-01), Kanno et al.
patent: 4713765 (1987-12-01), Abe et al.
patent: 4800499 (1989-01-01), Ina et al.
patent: 4860222 (1989-08-01), Schmidt et al.

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