Invention Grant
- Patent Title: Hydraulic control device for transmission
- Patent Title (中): 液压控制装置用于传动
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Application No.: US12908906Application Date: 2010-10-21
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Publication No.: US08479903B2Publication Date: 2013-07-09
- Inventor: Noriyuki Yagi
- Applicant: Noriyuki Yagi
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd
- Current Assignee: Honda Motor Co., Ltd
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-243918 20091022; JP2009-265109 20091120
- Main IPC: F16H61/688
- IPC: F16H61/688 ; F16D25/10

Abstract:
A hydraulic control device for a transmission is provided. The hydraulic control device regulates hydraulic pressure from an oil pressure source to generate line pressure, and selectively applies the generated line pressure to at least two kinds of controlled objects. The hydraulic control device includes: linear solenoid valves each controlling hydraulic pressure to the line pressure in accordance with electromagnetic force of a solenoid; and switching valves each selectively switching at least two kinds of controlled objects to apply the hydraulic pressure applied from the corresponding linear solenoid valve to the switched controlled object. The hydraulic control device further includes a feedback oil passage provided for each of the switching valves. The feedback oil passage is branched from one of a plurality of output oil passages of the corresponding switching valve. The feedback oil passage is connected to a feedback port of the linear solenoid valve.
Public/Granted literature
- US20110094610A1 HYDRAULIC CONTROL DEVICE FOR TRANSMISSION Public/Granted day:2011-04-28
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