Method and equipment for controlling the idling speed of an inte

Details Method and equipment for controlling the idling speed of an inte Method and equipment for controlling the idling speed of an inte

1991-05-07

1992-06-16

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123418, F02D 4116, F02P 515

Patent

active

051217260

ABSTRACT:
The idling speed of an internal combustion engine is regulated with the use of an electronic control unit arranged to generate a signal for correcting the ignition advance and a signal for varying the piloting of a solenoid valve provided in a duct which by-passes a throttle valve which controls the air supply to the engine. For this purpose, the electronic unit acquires the instantaneous speed of the engine and the air pressure in the inlet manifold by means of sensors. The electronic unit implements an LQI (linear-quadratic-integral) type of control based on a linear mathematical model of the engine.

REFERENCES:
patent: 4492195 (1985-01-01), Takahashi et al.
patent: 4638778 (1987-01-01), Kamei et al.
patent: 4653449 (1987-03-01), Kamei et al.
patent: 4785780 (1988-11-01), Kawai

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