Engine speed control apparatus

Details Engine speed control apparatus Engine speed control apparatus

1991-07-24

1992-07-28

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123418, F02D 4116, F02P 515

Patent

active

051333198

ABSTRACT:
An engine speed control apparatus comprises: a first detector for detecting an engine speed; a second detector for detecting idling condition of the engine; a first setting circuit responsive to the first detector for setting a target engine speed; a second setting circuit responsive to the first detector for setting target ignition timing; a first integrator for obtaining a first integrated value of deviation of the engine speed from the target engine speed; a second integrator for obtaining a second integrated value of deviation of ignition timing from the target ignition timing; a third detector for detecting a flow rate of intake air; a determining circuit for determining a value of a predetermined state variable, presenting an internal condition of the engine according to the engine speed, the ignition timing, the flow rate of intake air; a third setting circuit for determining the flow rate of intake air supplied to the engine according to the value of the predetermined state variable, the first and second integrated values; and a fourth setting circuit for setting the ignition timing according to the value of the predetermined state variable, and the first and second integrations.

REFERENCES:
patent: 4492195 (1985-01-01), Takahashi et al.
patent: 4638778 (1987-01-01), Kanei et al.
patent: 4785780 (1988-11-01), Kawai
patent: 4884540 (1989-12-01), Kishimoto et al.

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