The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2012
Filed:
Jul. 21, 2010
Teruyuki Deishi, Wako, JP;
Shunji Kamo, Wako, JP;
Shinya Abe, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
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.