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:
Nov. 17, 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 step position of a stepping motorwhich becomes the criterion for the transmission gear ratio control of a toroidal continuously variable transmissionwithout losing opportunities for learning more than necessary even when the ignition switch is turned OFF during learning of the step position. The controllerdetermines the ON/OFF state of the ignition switch, and when it is determined that the ignition switchis in the OFF state, the controllerprevents learning control from being executed. The state in which the rpm of the engineis dropping from after the ignition switchis turned OFF is eliminated from being an object of learning control for learning the step position, such that erroneous learning is prevented, while the state in which the rpm of the enginebecomes stable after the ignition switchis turned ON is not eliminated.