Hydraulic control for a master clutch of a transmission

Details Hydraulic control for a master clutch of a transmission Hydraulic control for a master clutch of a transmission

1985-01-14

1987-02-17

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Operators

192 8718, 192 358, F16D 2511

Patent

active

046432850

ABSTRACT:
The present invention provides a control system for the master clutch of a powershift type transmission of a motor vehicle. The inventive control system provides a manually controlled, fluid activated clutch with a high pedal force requirement with initial engagement, and a low pedal force requirement for operating the clutch in the inching mode. The inventive clutch control utilizes the hydraulic fluid pressure activating the master clutch to help the operator actuate the clutch pedal. The inventive master clutch control system also allows for smooth engagement of the master clutch when the clutch pedal is suddenly released.

REFERENCES:
patent: 3468194 (1969-09-01), Horsch et al.
patent: 3780762 (1973-12-01), Matthews et al.
patent: 3938637 (1976-02-01), Murakami
patent: 4354584 (1982-10-01), Reifinger et al.
patent: 4498356 (1985-02-01), Vater et al.

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