专利名称：Control system for an infinitely variable
transmission
发明人：Hiroyuki Nakamura,Yoshihiko Morimoto申请号：US06/848060申请日：19860404公开号：US04721019A公开日：19880126
摘要：A control system for an infinitely variable transmission has a transmission ratiocontrol valve having a spool for controlling oil supplied to a cylinder of a drive pulley tochange the transmission ratio. The transmission ratio control valve has chambers at bothends of the spool. By controlling the pressure of oil supplied to the chambers inaccordance with the difference between a desired transmission ratio and the actualtransmission ratio, the spool is shifted, so that the speed of changing the transmissionratio is controlled.
申请人：FUJI JUKOGYO KABUSHIKI KAISHA
代理人：Martin A. Farber
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