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. 01, 2011
Filed:
Jul. 23, 2008
Masayuki Arai, Toyota, JP;
Masayuki Arai, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A power transmission controlling apparatus for controlling a power transmission mechanism provided with a main transmissionand an auxiliary transmissionto be operated in any one of the changeable high and low speed output states. The auxiliary transmissionis operative to perform a changing operation to change one of the high and low speed output states into the other thereof when outputting a drive power and constructed to return its starting position when the changing operation is brought out of an allowable condition preliminarily set based on the operation states of the main transmissionin the time period from the time the changing operation starts to the time the changing operation is finished so that the changing operation can be smoothly and stably performed with no unpleasant gear noises.