Hydraulic transmission control system

Details Hydraulic transmission control system Hydraulic transmission control system

1990-01-19

1992-02-18

Cangialosi, Salvatore

Boots, shoes, and leggings

74866, B60K 4112

Patent

active

050899643

ABSTRACT:
A hydraulic control system for a steplessly variable transmission, having primary and secondary pulley assemblies, controls a line pressure for complementarily varying effective diameters of the primary and secondary pulley assemblies so as to steplessly vary a transmission ratio of the steplessly variable transmission. The line pressure is changed according to an engine output transmitted to the primary pulley assembly from an engine and a transmission ratio of the steplessly variable transmission. A decrease of pressure is caused in the line pressure according to a thrust exerted on either one of the primary and secondary pulley assemblies caused by centrifugal force.

REFERENCES:
patent: 4718306 (1988-01-01), Shigematsu et al.
patent: 4778435 (1988-10-01), Sugaya et al.
patent: 4790214 (1988-12-01), Hattori et al.
patent: 4796489 (1989-01-01), Nagamatsu et al.
patent: 4841814 (1989-06-01), Satoh
patent: 4858497 (1989-08-01), Kouno
patent: 4916982 (1990-04-01), Suzuki

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