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:
Mar. 07, 2006
Filed:
Jul. 29, 2003
Akira Aikawa, Aichi-ken, JP;
Hiroaki Kato, Toyota, JP;
Katsutoshi Sato, Toyoake, JP;
Yasuo Shirai, Chiryu, JP;
Atsumi Ohara, Ibaraki, JP;
Akira Aikawa, Aichi-ken, JP;
Hiroaki Kato, Toyota, JP;
Katsutoshi Sato, Toyoake, JP;
Yasuo Shirai, Chiryu, JP;
Atsumi Ohara, Ibaraki, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A control apparatus for controlling a shift operation in an automatic transmission includes a disengaging side controlling device for performing a feedback control so as to substantially match a slip amount calculated by a slip amount calculating device with a target slip amount calculated by a target slip amount calculating device when the calculated slip amount is judged to be in excess of the predetermined threshold value by a judging device. The target slip amount varies from a predetermined threshold value to a predetermined target value drawing an ideal trace for restraining a shift shock and is maintained at the predetermined target value. The control apparatus further includes an engaging side controlling device for increasing a torque to be transmitted to an on-coming friction engagement element in association with commencement of the feedback control.