Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1992-10-30
1993-10-05
Wright, Dirk
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
F16H 6106
Patent
active
052494837
ABSTRACT:
In order to reduce a select shock of an automatic transmission, a measure is employed, which comprises a first device for detecting the selection of a drive range from a neutral range; a second device for detecting the starting of engaging movement of a hydraulically operated friction element for the drive range; a third device for controlling a hydraulic pressure applied to the friction element; a fourth device for causing the third device to raise the hydraulic pressure to a higher level from the time when the range selection is carried out to the time when the second device detects the starting of engaging movement and lower the hydraulic pressure to a lower level after the detection by the second device; a fifth device for producing an instruction signal when a predetermined time passes after the drive range detection by the first device; and a sixth device for causing the third device to lower the hydraulic pressure to the lower level upon issuance of the instruction signal irrespective of any detection by the second device.
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Jatco Corporation
Wright Dirk
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