Control system for a continuously variable transmission

Details Control system for a continuously variable transmission Control system for a continuously variable transmission

1985-05-23

1986-08-26

Leppink, James A.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Load responsive

474 28, 74689, F16H 1106

Patent

active

046080317

ABSTRACT:
A hydraulic control for a continuously variable pulley type transmission, has a torque sensing mechanism which is responsive to the torque transmitted by a gearing arrangement drivingly connected with the variable pulley drive. The torque sensing mechanism controls a valve which supplies a pressure signal to a control valve for the variable pulley drive. The control valve in response to the pressure signal and a position signal from the variable pulley drive controls the flow of pressure fluid to and from a hydraulic control mechanism. The hydraulic control mechanism controls the torque capacity of the variable pulley drive.

REFERENCES:
patent: 3082636 (1963-03-01), Steinlein
patent: 3670594 (1972-06-01), Roper
patent: 4261213 (1981-04-01), Rattunde
patent: 4502353 (1985-03-01), Beaudoin

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