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:
Nov. 09, 2004
Filed:
Nov. 13, 2002
Applicant:
Inventor:
Masanobu Horiguchi, Atsugi, JP;
Assignee:
Hitachi Unisia Automotive, Ltd., Atsugi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 4/102 ;
U.S. Cl.
CPC ...
B60K 4/102 ;
Abstract
In a constitution where a hydraulic pressure is delivered periodically to friction engagement elements in released states to discharge air mixed into a hydraulic circuit a duty ratio in the hydraulic pressure delivery is switched to a plurality of different values according to operating conditions, a ratio of an actual total time to a target total time is switched per each of duty ratios; and the air discharge control is terminated when a sum of the ratios becomes a predetermined value or above.
Horiguchi, Masanobu. (2004). Hydraulic control apparatus of automatic transmission and method thereof (U.S. Patent No. 6814689). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6814689
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile