HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

A hydraulic control device for an automatic transmission where the spool is locked at the first position and the switching pressure can regulate the belt holding force of the primary pulley or the secondary pulley without switching a position of the spool when the engagement pressure is supplied to...

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Bibliographische Detailangaben
Hauptverfasser: SERIGUCHI Yuta, TSUCHIDA Kenichi, TAKIZAWA Masashi, SOGA Yoshinobu, MIZUNO Yoshihiro, MORIYAMA Syuji, TAKASU Masafumi, INAGAKI Takafumi, HAYASHI Toshiaki, NITANI Hiromitsu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A hydraulic control device for an automatic transmission where the spool is locked at the first position and the switching pressure can regulate the belt holding force of the primary pulley or the secondary pulley without switching a position of the spool when the engagement pressure is supplied to the second working oil chamber, and the spool is not locked at the first position and the switching pressure can switch the spool to the second position against the urging member when the engagement pressure is not supplied to the second working oil chamber.