Internal-combustion engines – Charge forming device – Fuel injection system
Patent
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.
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Japan Electronic Control Systems Co. Ltd.
Wolfe Willis R.
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