Method and apparatus for controlling engine rotational speed

Details Method and apparatus for controlling engine rotational speed Method and apparatus for controlling engine rotational speed

1979-12-31

1981-12-22

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

123327, 123352, F02D 104, F02D 900, B60K 3100, F02M 2304

Patent

active

043065279

ABSTRACT:
A method for controlling the rotational speed of a combustion engine which drives an automotive vehicle by computing the actual and desired values of the idle rotational speed of the engine, computing a control amount corresponding to the difference between the actual and desired values and controlling the amount of air or the amount of mixture supplied to the engine in accordance with the control amount. The desired value and the upper and lower limit values of the control amount are changed in accordance with a plurality of operating parameters including the condition of a brake switch.

REFERENCES:
patent: 3645241 (1972-02-01), Huntzinger
patent: 3648798 (1972-03-01), Jania
patent: 3661131 (1972-05-01), Croft
patent: 3868933 (1975-03-01), Bigalke et al.
patent: 3885644 (1975-05-01), Seidler et al.
patent: 4014169 (1977-03-01), Umino
patent: 4108127 (1978-08-01), Chapin et al.
patent: 4192278 (1980-03-01), Iizuka et al.
patent: 4194477 (1980-03-01), Sugiyama

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