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:
Aug. 07, 2012
Filed:
Jun. 05, 2008
Shiro Yonezawa, Chiyoda-ku, JP;
Takeru Okabe, Chiyoda-ku, JP;
Nozomu Kamioka, Chiyoda-ku, JP;
Tomohisa Shoda, Chiyoda-ku, JP;
Masaki Horii, Chiyoda-ku, JP;
Yasufumi Ogawa, Chiyoda-ku, JP;
Shiro Yonezawa, Chiyoda-ku, JP;
Takeru Okabe, Chiyoda-ku, JP;
Nozomu Kamioka, Chiyoda-ku, JP;
Tomohisa Shoda, Chiyoda-ku, JP;
Masaki Horii, Chiyoda-ku, JP;
Yasufumi Ogawa, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control device of an automatic transmission includes a motor control portion to control an output of a motor that executes a control operation on a clutch control portion. The motor control portion includes a target motor current computation portion that computes a target motor current according to a desired driving state, a motor current detection portion that detects plural motor currents respectively corresponding to plural detection timings, a selection portion that selects a motor current corresponding to the desired driving state among the detected plural motor currents, and a motor driving portion that applies feedback control on an output of the motor according to a difference between the target motor current and the selected motor current. Hence, not only can the most suitable clutch control be applied for each gear-change interval at gear change, but also the comfortable feeling during the driving and the fuel efficiency can be enhanced.