Electro-magnetic clutch control system for automobiles

Details Electro-magnetic clutch control system for automobiles Electro-magnetic clutch control system for automobiles

1981-01-09

1983-03-22

Krizmanich, George H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

192 52, 192 84R, 192103R, 310 94, F16D 2700, B60K 4122

Patent

active

043772234

ABSTRACT:
A system for controlling an electro-magnetic clutch for automobiles has a stepwise increase of the clutch torque for reducing the engaging shock. The system comprises a gate circuit for producing a signal by signal by shift lever clutch operation, a monostable multivibrator for producing a clutch engaging period signal by the output signal of the gate circuit for a predetermined clutch engaging period, a pulse generating circuit for producing a pulse train and a constant control signal in dependency on the mode of the clutch engaging period signal, and a control circuit for maintaining the current flowing through the magnetizing coil of the clutch at a lower value in response to the pulse train for providing a small clutch torque of the clutch and maintaining the current at a rated value in response to the constant control signal for completely engaging the clutch.

REFERENCES:
patent: 2688388 (1954-09-01), Gill
patent: 2880595 (1959-04-01), McGuffey et al.
patent: 2981846 (1961-04-01), Maurice et al.
patent: 3073422 (1963-01-01), Baumann
patent: 3141103 (1964-07-01), Asano
patent: 3258094 (1966-06-01), Zechnall et al.
patent: 3989129 (1976-11-01), Brandenstein

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