Invention Grant
- Patent Title: Hydraulic control apparatus for automatic transmission
- Patent Title (中): 液压控制装置自动变速器
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Application No.: US12840296Application Date: 2010-07-21
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Publication No.: US08235855B2Publication Date: 2012-08-07
- Inventor: Teruyuki Deishi , Shunji Kamo , Shinya Abe
- Applicant: Teruyuki Deishi , Shunji Kamo , Shinya Abe
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: JP2009-177129 20090729
- Main IPC: F16H31/00
- IPC: F16H31/00

Abstract:
A hydraulic control apparatus for an automatic transmission includes linear solenoid valves each configured to control a line pressure in accordance with an electromagnetic force of a solenoid. The linear solenoid valves each include a spool and are controlled under a normal hydraulic control mode or a current consumption decrease mode. The spool is actuated in accordance with the electromagnetic force. An output fluid pressure is controlled to be a maximum output fluid pressure from a minimum output fluid pressure with the spool at a balanced position under the normal hydraulic control mode. A current consumption for generating the electromagnetic force is decreased to make the fluid pressure equal to or lower than the minimum output fluid pressure under the normal hydraulic control mode and to hold the fluid pressure within a range corresponding to the balanced position under the current consumption decrease mode.
Public/Granted literature
- US20110028273A1 HYDRAULIC CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION Public/Granted day:2011-02-03
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