Device and method for setting belt clamping pressure

Details Device and method for setting belt clamping pressure Device and method for setting belt clamping pressure

2007-11-13

2007-11-13

Johnson, Vicky A. (Department: 3682)

Endless belt power transmission systems or components

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

Fluid pressure actuator for adjustment of member

Reexamination Certificate

active

10853554

ABSTRACT:
A belt clamping pressure setting device includes: a belt clamping pressure setting unit that sets a belt clamping pressure of a continuously variable transmission that includes an input-side pulley, an output-side pulley, and a belt running between the input-side pulley and the out-side pulley; an input revolution detection sensor that detects a number of input revolutions of the input-side pulley; an output revolution detection sensor that detects a number of output revolutions of the output-side pulley; an input torque detection unit that detects an input torque to the input-side pulley; a reference clamping pressure computing unit that computes a reference clamping pressure, based on the number of input revolutions detected by the input revolution detection sensor, the number of output revolutions detected by the output revolution detection sensor, and the input torque detected by the input torque detection unit; and a belt clamping pressure computing unit that computes the belt clamping pressure to be set by the belt clamping pressure setting unit based on the reference clamping pressure and a correction value computed in accordance with the number of input revolutions detected by the input revolution detection sensor or a torque fluctuation frequency obtained from the number of input revolutions.

REFERENCES:
patent: 4-357336 (1992-12-01), None
patent: 2003-130195 (2003-05-01), None

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