Patent №
US 4,833,944
Granted
1989-05-30
Filed 1987
Owner
FUJI JUKOGYO KABUSHIKI KAISHA, 7-2 NISHISHINJUKU 1-CHOME, SHINJUKU-KU, TOKYO, JAPAN A CORP. OF JAPAN
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07088061
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 to the chambers in accordance with a desired transmission ratio, the spool is shifted, so that the transmission ratio changing rate is controlled. At kickdown of the transmission, two desired value signals are applied to correct the desired transmission ratio and desired transmission ratio changing rate so as to quickly increase the transmission ratio to a value smaller than the desired transmission ratio at the kickdown.
AI classification
Ownership
FUJI JUKOGYO KABUSHIKI KAISHA, 7-2 NISHISHINJUKU 1-CHOME, SHINJUKU-KU, TOKYO, JAPAN A CORP. OF JAPAN
assignment · 47890093
Assignors
TANAKA, HIROSHI
On an employer assignment, the assignors are typically the inventors.