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:
May. 31, 2011
Filed:
Jan. 24, 2008
Yoshiharu Saitou, Wako, JP;
Masaaki Takamatsu, Wako, JP;
Yoshiharu Saitou, Wako, JP;
Masaaki Takamatsu, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A control device for an automatic transmission having a torque converter with a lock-up clutch provided between an engine and the automatic transmission, and a lock-up control device for controlling an engaged condition of the lock-up clutch. The control device includes a plurality of different target slip ratio maps each having a plurality of target slip ratio characteristic lines of the lock-up clutch predetermined according to a throttle angle, a first map selector for selecting one of the target slip ratio maps according to a running range, according to whether the running road is a level road/downhill road or an uphill road, and according to a gear position during running in the condition where an accelerator pedal is depressed, and a second map selector for selecting one of the target slip ratio maps according to a running range, according to whether the running road is a level road/uphill road or a downhill road, and according to a gear position during running in the condition where the accelerator pedal is undepressed.