Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-08-14
1989-05-09
Wright, Dirk
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74864, 74868, 3644241, B60K 4114
Patent
active
048278033
ABSTRACT:
A control system for a continuously variable transmission for a motor vehicle has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The transmission ratio control valve has chambers at both ends of the spool. By controlling flow rate of oil supplied a chamber in accordance with a desired transmission ratio, the spool is shifted, so that the rate of change of the transmission ratio is controlled. The transmission ratio changing rate is reduced as the difference between the actual transmission ratio and desired transmission ratio increases.
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Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Macris Harold F.
Wright Dirk
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