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:
Feb. 14, 2017
Filed:
Apr. 16, 2013
Motonori Kimura, Toyota, JP;
Daisuke Inoue, Toyota, JP;
Atsushi Ayabe, Toyota, JP;
Shuhei Ishikawa, Toyota, JP;
Hiroki Kondo, Miyoshi, JP;
Akira Hino, Toyota, JP;
Kenji Matsuo, Toyota, JP;
Takuro Shimazu, Miyoshi, JP;
Motonori Kimura, Toyota, JP;
Daisuke Inoue, Toyota, JP;
Atsushi Ayabe, Toyota, JP;
Shuhei Ishikawa, Toyota, JP;
Hiroki Kondo, Miyoshi, JP;
Akira Hino, Toyota, JP;
Kenji Matsuo, Toyota, JP;
Takuro Shimazu, Miyoshi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A controller for a vehicle transmission is disclosed. The controller may include an electronic control unit configured to carry out a change shift for changing a path of the transmission of power between a first transmission path and a second transmission path by engaging a predetermined clutch mechanism. The electronic control unit may also be configured to set a change speed ratio region that defines a range of a speed ratio of the first transmission mechanism such that a rotation speed difference between engagement members of the clutch mechanism, which are engaged with each other in carrying out the change shift, is smaller than or equal to a predetermined value. When a speed ratio outside the change speed ratio region is set in the first transmission mechanism, the change shift is not carried out.