Method and apparatus for controlling the solenoid current of a s

Details Method and apparatus for controlling the solenoid current of a s Method and apparatus for controlling the solenoid current of a s

1988-03-31

1989-10-24

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123353, 123361, 123585, F02D 4116

Patent

active

048754471

ABSTRACT:
A method and apparatus is provided for controlling the solenoid current of a solenoid valve which controls the amount of suction air in an internal combustion engine. A solenoid current control value is calculated as a function of engine operating conditions and a corrected solenoid current control value is determined as a predetermined function of the solenoid current control value. The solenoid valve is controlled as a function of the corrected solenoid current control value. The solenoid valve is controlled by generating a pulse signal having a duty ratio which is a function of the solenoid current control value.

REFERENCES:
patent: 3800755 (1974-04-01), Klaiber et al.
patent: 4370960 (1983-02-01), Otsuka
patent: 4378766 (1983-04-01), Yamazoe et al.
patent: 4386591 (1983-06-01), Nagase et al.
patent: 4402294 (1983-09-01), McHugh et al.
patent: 4446410 (1984-05-01), Yagura et al.
patent: 4660520 (1987-04-01), Inoue et al.

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