Forward and reverse clutch engagement parking brake

Details Forward and reverse clutch engagement parking brake Forward and reverse clutch engagement parking brake

1983-12-19

1986-03-11

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

B60K 4128

Patent

active

045749272

ABSTRACT:
A supplemental parking brake for a vehicle having a power shift transmission which includes a hydraulically operated forward clutch which is selectively engaged to put the transmission in the forward operating mode and a hydraulically operated reverse clutch which is selectively engaged to put the transmission in the reverse operating mode. The supplemental parking brake is applied automatically when the regular parking brake is applied if a predetermined condition prevails. Such condition prevails if the power transmission of the vehicle has been shifted by appropriate controls to either the forward operating mode or the reverse operating mode.

REFERENCES:
patent: 2963945 (1960-12-01), Barker et al.
patent: 3631950 (1972-01-01), Tanaka
patent: 3651904 (1972-03-01), Snoy et al.
patent: 3729074 (1973-04-01), Anderson et al.
patent: 3978946 (1976-09-01), Ream
patent: 3994374 (1976-11-01), Gill
patent: 4273224 (1981-06-01), Brown et al.

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