Method and apparatus for controlling the idle speed of an intern

Details Method and apparatus for controlling the idle speed of an intern Method and apparatus for controlling the idle speed of an intern

1994-03-18

1995-08-29

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

F02D 4116

Patent

active

054451248

ABSTRACT:
The present invention relates to the idle speed control of an internal combustion engine. The output torque required for obtaining the target idle speed is computed, the ignition timing correction amount required for obtaining said required output torque and similarly, the auxiliary air flow rate through the auxiliary air control valve bypassing the throttle valve required for obtaining said required output torque are computed. By carrying out these computations simultaneously, the torque correction is carried out in the best possible response speed by the ignition timing control and subsequently, the torque correction by the auxiliary air flow rate control is carried out. Thereby, the response characteristic of idle speed control can be significantly improved.

REFERENCES:
patent: 4572127 (1986-02-01), Morris
patent: 4658787 (1987-04-01), Takizawa
patent: 4732125 (1988-03-01), Takizawa

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