Mechanism for modulating clutch engagement

Details Mechanism for modulating clutch engagement Mechanism for modulating clutch engagement

1976-07-08

1978-04-11

Wyche, Benjamin W.

192 clutches and power-stop control

Clutches

Operators

192 075, B60K 2100

Patent

active

040834433

ABSTRACT:
Clutch control comprising a first three-way valve which is automatically operated by the accelerator to effect the clutch engaging operation of a clutch control pressure differential operated motor and a second three-way valve which is automatically operated, when the clutch plates contact at a predetermined load, to terminate a relatively fast clutch engaging movement of the clutch plates. The motor is also in part controlled by a bleed valve operative to control the loading of the clutch plates as the clutch plates are moved by a clutch spring into firmer engagement with each other. The bleed valve is operative to repeatedly close and open an air bleed port in response to a signal pulse. A pulse width modulator is provided to vary the pulse width of the signal pulse.

REFERENCES:
patent: 2086576 (1937-07-01), Price et al.
patent: 2601626 (1952-06-01), Prather
patent: 3536176 (1970-10-01), Cappa
patent: 3684071 (1972-08-01), Wheymann

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