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:
Oct. 15, 2019
Filed:
Dec. 15, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Akio Natori, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A vehicle driving device includes an engine, a continuously variable transmission, and a controller. The controller controls the engine and the continuously variable transmission such that an operating point determined by a rotation number and an output torque of the engine follows at least one operating line. In a region where the rotation number of the engine is smaller than a predetermined value, the operating line is set on an optimum fuel efficiency line. In a region where the rotation number equals to or larger than a predetermined value an increasing amount of the output torque relative to an increasing amount of the rotation number in the operating line is larger than the increasing amount of the output torque relative to the increasing amount of the rotation number in the optimum fuel efficiency line.