Friction clutch control device

Details Friction clutch control device Friction clutch control device

1981-11-10

1984-01-31

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 358, 192 0092, 192 0076, 74731, 74752A, 361242, B60K 4128, F16H 374

Patent

active

044284675

ABSTRACT:
A control device for a hydraulic pressure operated friction clutch in an automatic speed changer has a device which detects a speed difference (S) between an engine drive shaft and an input shaft. Load and speed detecting devices detect the engine load and drive shaft speed respectively, this load and speed information being used to set a second speed difference (So). A hydraulic pressure controlling device then controls the hydraulic pressure supplied to the friction clutch control device so that the first speed difference (S) approaches the second speed difference (So). In addition, a fail-safe circuit releases the friction clutch if the first speed difference remains abnormally large for a predetermined period of time.

REFERENCES:
patent: 2824632 (1958-02-01), Lucia et al.
patent: 3897698 (1975-08-01), Ohsaka
patent: 4386687 (1983-06-01), Chevalier et al.
patent: 4388987 (1983-06-01), Hennessey et al.
patent: 4391166 (1983-07-01), Kubo et al.

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