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. 10, 2015
Filed:
Feb. 29, 2012
Wataru Matsubara, Nisshin, JP;
Sei Kojima, Okazaki, JP;
Akira Hino, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
In a control device for a vehicle on which is mounted a continuously variable transmission capable of mechanically locking a primary pulley at the time of a maximum gear ratio (maximum Low), an idle rotational speed is not always set high to increase a hydraulic pressure at the time of stopping the vehicle. Instead, at the time of stopping the vehicle, when the gear ratio of the continuously variable transmission is the maximum gear ratio, normal idle rotational speed control is performed, and only when the gear ratio is not the maximum gear ratio, idle-up control is performed so that the idle rotational speed is set high, thereby the hydraulic pressure is set high. Thus, by restricting conditions in which the hydraulic pressure is set high by the idle-up control, it is possible to improve fuel efficiency while suppressing generation of a belt slip.