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公开(公告)号:US20230313885A1
公开(公告)日:2023-10-05
申请号:US18165330
申请日:2023-02-07
发明人: Takahide WATANABE
IPC分类号: F16H61/686 , F16H61/00
CPC分类号: F16H61/686 , F16H61/0009 , F16H2200/2002
摘要: The disclosure reduces the number of factors to be considered in the switching control of the shift stages, thereby simplifying the switching control. In a control device of an automatic transmission, when a detection part detects that a shift position has been switched from one of a forward range and a reverse range to the other, among multiple hydraulic friction engagement mechanisms, a hydraulic pressure command value is fixed for the hydraulic friction engagement mechanisms that do not change the engaged state between the forward range and the reverse range, and the hydraulic pressure command value is variable based on a hydraulic pressure supplied to the hydraulic friction engagement mechanisms for the hydraulic friction engagement mechanisms that change the engaged state between the forward range and the reverse range.
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公开(公告)号:US20140166139A1
公开(公告)日:2014-06-19
申请号:US14109836
申请日:2013-12-17
IPC分类号: F16K11/04
CPC分类号: F16K11/04 , F16K11/0708 , F16K11/0716 , Y10T137/86445 , Y10T137/86775
摘要: A spool valve includes a valve housing and a spool. The valve housing includes a spool hole, a first oil passage, and a second oil passage. The first oil passage has a first port, a second port and a third port that are open to the spool hole. The second oil passage has a fourth port, a fifth port and a sixth port that are open to the spool hole. The spool includes a first oil groove, a second oil groove, a third oil groove, a fourth oil groove, a first communication passage, and a second communication passage. The spool is slidable in the spool hole to switch communication of the third oil groove with the second port and the third port and to switch communication of the fourth oil groove with the fifth port and the sixth port.
摘要翻译: 滑阀包括阀壳体和阀芯。 阀壳体包括滑阀孔,第一油通道和第二油通道。 第一油路具有与卷轴孔相通的第一端口,第二端口和第三端口。 第二油路具有与卷轴孔相通的第四端口,第五端口和第六端口。 阀芯包括第一油槽,第二油槽,第三油槽,第四油槽,第一连通通道和第二连通通道。 阀芯可以在阀芯孔中滑动以切换第三油槽与第二端口和第三端口的连通,并且使第四油槽与第五端口和第六端口的连通切换。
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