Control system for belt-type continuously variable transmission

Details Control system for belt-type continuously variable transmission Control system for belt-type continuously variable transmission

2011-08-23

2011-08-23

King, Bradley T (Department: 3657)

Endless belt power transmission systems or components

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

Fluid pressure actuator for adjustment of member

C474S070000, C701S061000, C477S046000

Reexamination Certificate

active

08002654

ABSTRACT:
A control system for controlling a belt-type continuously variable transmission having a pulley capable of varying its groove width to which a belt is applied, in which the pulley is provided with an oil chamber to which the oil pressure is fed so that the pulley clamps the belt, in which the capacity of the oil chamber is varied in accordance with a change in the groove width, and in which the oil pressure in the oil chamber is controlled in accordance with a deviation between a target oil pressure and an actual oil pressure, comprising: a pressure-receiving capacity change detecting device for detecting a change in the capacity of the oil chamber; and an oil pressure control contents altering device for altering a degree to reflect the deviation on the oil pressure control of the oil chamber on the basis of a change in the capacity.

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