Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-10-03
1993-05-25
Lorence, Richard
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74867, B60K 4106
Patent
active
052130134
ABSTRACT:
A hydraulic pressure control system for an automatic transmission includes a multiple transmission gear mechanism having a plurality of gear stages and frictional elements for switching power transmitting paths in the transmission gear mechanism, a hydraulic control mechanism for controlling engagement and disengagement of the frictional elements to establish one of said gear stages, and a line pressure control device for controlling line pressure of the hydraulic control mechanism. A speed detecting device for detects a speed of an input element of the transmission gear mechanism during shift operation of the shift gear stage in the transmission gear mechanism, and a compensation device compensates the line pressure in accordance with signal from the speed detecting device. The line pressure is compensated by a learning control to reduce a torque shock due to the shift operation.
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Fujiwara Takuji
Ishii Kozo
Takemoto Kazuo
Yoshimura Hiroshi
Levi Benjamin
Lorence Richard
Mazda Motor Corporation
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