Method of controlling the idle rotational speed of an internal c

Details Method of controlling the idle rotational speed of an internal c Method of controlling the idle rotational speed of an internal c

1982-09-15

1984-07-24

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123352, F02D 3302

Patent

active

044612532

ABSTRACT:
The idle air flow to an engine is increased or decreased in response to a control signal which is produced by comparing actual engine speed with a desired idle speed. Whether the above increase or decrease operation is continuously repeated more than a certain times is discriminated. If it is repeated more than the certain times, whether the variation of the engine speed during the above continuous increase or decrease operation is less than a predetermined value is discriminated. When the engine-speed variation during the above increase or decrease operation is less than the predetermined value, the idle speed control operation is inhibited from being executed.

REFERENCES:
patent: 4237833 (1980-12-01), Des Lauriers
patent: 4337742 (1982-07-01), Carlson et al.
patent: 4392468 (1983-07-01), Kobashi et al.

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