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:
Sep. 01, 2015
Filed:
Jan. 12, 2012
Takumi Shinojima, Kanagawa, JP;
Hiromasa Nakamura, Saitama, JP;
Takumi Shinojima, Kanagawa, JP;
Hiromasa Nakamura, Saitama, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
Construction is achieved that is capable of ensuring reliability of a learned value for a position of an adjustment memberwhich becomes the criterion for the transmission gear ratio control of a toroidal continuously variable transmission. As conditions for allowing learning of a controllerthat controls the adjustment member, in which the controlleradjusts the transmission gear ratio of the toroidal continuously variable transmissionto a state in which the rotation speed of an output shaftbecomes '0', learns and saves in memory the position of the adjustment memberin this state as the position in which the output shaftis stopped while an input shaftis rotated as is, the controllerdetermining whether or not the enginerpm is unstable, and prohibiting execution of this learning control if the enginerpm is determined as being unstable due to the enginerpm fluctuating greater than the normal amount of fluctuation during idling or the like, are included.