Brake and clutch control

Details Brake and clutch control Brake and clutch control

1989-07-31

1990-12-04

Lorence, Richard

192 clutches and power-stop control

Clutch and brake

192 13A, 192 84R, 192143, 36442601, B60K 4124

Patent

active

049747118

ABSTRACT:
A clutch and brake control circuit includes first and second relays connected to an interlock circuit and to the brake and clutch coils on a vehicle. The relays are interconnected with the coils so that the clutch coil cannot be energized unless the brake coil circuit is complete. Preferably, the brake coil circuit includes a delay timer for assuring that the brake is energized for a preselected time period after the clutch coil is deenergized. The circuit is constructed such that if the clutch coil is reenergized during the time period, power to the brake coil is interrupted and the clutch coil turns on immediately without delay. Any time after the clutch coil is deenergized, a clutch switch connected to the interlock circuit and the relays must be actuated before the clutch will engage. The interlock circuit, which may include such elements as transmission, parking brake and seat switches, is fully integrated with the brake and clutch control.

REFERENCES:
patent: 4176735 (1979-12-01), Cousin et al.
patent: 4445603 (1984-03-01), Filsinger
patent: 4607199 (1986-08-01), Krueger et al.
patent: 4651018 (1987-03-01), Peterson, Jr.
patent: 4664218 (1987-05-01), Graham et al.
patent: 4676353 (1987-06-01), Matsuda
patent: 4811811 (1989-03-01), Bergene

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