Apparatus for and method of controlling hydraulic clutch operati

Details Apparatus for and method of controlling hydraulic clutch operati Apparatus for and method of controlling hydraulic clutch operati

1989-03-02

1990-07-24

Diehl, Dwight

Machine element or mechanism

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

Preselected indexed position

192109F, B60K 4106

Patent

active

049427873

ABSTRACT:
A controller for an automatic transmission hydraulic clutch includes a hydraulic clutch engaged by hydraulic pressure, a hydraulic pressure control valve for regulating the hydraulic pressure, and a detector for detecting a condition immediately before engagement of the hydraulic clutch based upon a change in the hydraulic pressure. A timing controller adjusts timing to change a control force in the hydraulic pressure control valve in response to detection of a condition immediately before engagement of the clutch.

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patent: 3964372 (1976-06-01), Chattergea
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patent: 4289221 (1981-09-01), Chambers et al.
patent: 4629045 (1986-12-01), Kasai
patent: 4674613 (1987-06-01), Sikorski
patent: 4718525 (1988-01-01), Yamaguchi

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