Electromagnetic clutch control system for vehicles

Details Electromagnetic clutch control system for vehicles Electromagnetic clutch control system for vehicles

1981-11-23

1984-05-22

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 358, 192 0092, B60K 4128

Patent

active

044496206

ABSTRACT:
A system for controlling an electromagnetic clutch of an internal combustion engine mounted on a vehicle, which has a magnetizing coil and a transmission. A vehicle speed detecting circuit is provided for producing an output when the vehicle speed exceeds a predetermined speed and another detecting circuit for a vehicle travelling condition is provided for producing an output by signals from a top-gear switch provided in the transmission and from an engine speed switch. A trouble detecting circuit is provided for producing a trouble signal when the output of the speed detecting circuit is not applied in spite of the output of the vehicle travelling condition detecting circuit. A gate device is responsive to the trouble signal for producing an output which is applied to a switching transistor. The transistor is turned on by the output, so that clutch current passes through the magnetizing coil for engaging the circuit.

REFERENCES:
patent: 2592576 (1952-04-01), Kelbel
patent: 2990927 (1961-07-01), Steadman
patent: 4091902 (1978-05-01), Hamada

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