Transmission ratio control system for a continuously variable tr

Details Transmission ratio control system for a continuously variable tr Transmission ratio control system for a continuously variable tr

1987-01-02

1987-11-24

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, 3644241, B60K 4112, B60K 4118, B60K 4116

Patent

active

047080310

ABSTRACT:
A control system for a continuously variable transmission for a motor vehicle has a line pressure control valve having a spool for controlling oil supplied to a cylinder of a driven pulley to change the transmission ratio. The control system operates to increase the line pressure when the vehicle stops. The increased line pressure actuate the cylinder thereby increasing the transmission ratio.

REFERENCES:
patent: 3918312 (1975-11-01), Espenschied et al.
patent: 4397379 (1983-08-01), Baudoin
patent: 4545265 (1985-10-01), Abo et al.
patent: 4547178 (1985-10-01), Hayakawa et al.
patent: 4612828 (1986-09-01), Ide et al.

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