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:
Jul. 01, 2008
Filed:
Apr. 04, 2006
Yuji Inoue, Nisshin, JP;
Atsushi Tabata, Okazaki, JP;
Atsushi Honda, Seto, JP;
Akiharu Abe, Toyota, JP;
Kazutoshi Nozaki, Aichi-gun, JP;
Hirofumi Ota, Toyota, JP;
Atsushi Kamada, Toyota, JP;
Yuji Inoue, Nisshin, JP;
Atsushi Tabata, Okazaki, JP;
Atsushi Honda, Seto, JP;
Akiharu Abe, Toyota, JP;
Kazutoshi Nozaki, Aichi-gun, JP;
Hirofumi Ota, Toyota, JP;
Atsushi Kamada, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
At a first forward speed, the oil passage in a relay valve is switched to control the torque capacity of a lock-up clutch using a linear solenoid valve that controls the engagement pressure of a clutch that is engaged at each of fifth to eighth forward speeds. At each of second to eighth forward speeds, the oil passage in another relay valve is switched to control the torque capacity of the lock-up clutch using a linear solenoid valve that controls the engagement pressure of a brake that is engaged at the first forward speed.