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. 24, 2012
Filed:
May. 05, 2009
Masaki Horii, Chiyoda-ku, JP;
Shiro Yonezawa, Chiyoda-ku, JP;
Takeru Okabe, Chiyoda-ku, JP;
Osamu Ishikawa, Chiyoda-ku, JP;
Tomohisa Shoda, Chiyoda-ku, JP;
Nozomu Kamioka, Chiyoda-ku, JP;
Yasufumi Ogawa, Chiyoda-ku, JP;
Masaki Horii, Chiyoda-ku, JP;
Shiro Yonezawa, Chiyoda-ku, JP;
Takeru Okabe, Chiyoda-ku, JP;
Osamu Ishikawa, Chiyoda-ku, JP;
Tomohisa Shoda, Chiyoda-ku, JP;
Nozomu Kamioka, Chiyoda-ku, JP;
Yasufumi Ogawa, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control device of a transmission is capable of instantaneously correcting a torque shortly after starting a motor, and properly correcting a gear operation shortly after starting (at transient time) even in case of coil temperature change. The device includes a gear change end determination unit, a motor stop determination unit, and a coil resistance estimation unit of estimating a coil resistance of the motor alternately by repeating at regular intervals a state of application of a predetermined voltage to the motor during stop before start of gear change and a state of no application; and when the motor is determined stop by the determination units, an initial value of a command voltage to be applied to the motor after start of gear change is corrected in a predetermined time period in accordance with a coil resistance value having been calculated by the coil resistance estimation unit.