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:
Sep. 07, 1999
Filed:
Jul. 03, 1997
Atsushi Tabata, Okazaki, JP;
Hideki Miyata, Toyota, JP;
Yasuo Hojo, Nagoya, JP;
Masahiko Ando, Okazaki, JP;
Fumitomo Yokoyama, Aichi-ken, JP;
Kazuhisa Ozaki, Aichi-ken, JP;
Akira Fukatsu, Anjo, JP;
Motoyuki Sakai, Aichi-ken, JP;
Makoto Hijikata, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin AW Kabushiki Kaisha, Anjo, JP;
Abstract
A control system for an automatic transmission, in which a first frictional engagement element and a second frictional engagement element are released according to a shift from a running range to a non-running range. The shift from the running range to the non-running range is detected, and the reduction in the oil pressure of the second frictional engagement element is controlled on the basis of the reduction in the oil pressure of the first frictional engagement element when the shift from the running range to the non-running range is detected.