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. 05, 2019
Filed:
Feb. 06, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Norihiro Tsukamoto, Toyota, JP;
Tomohiro Asami, Nisshin, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An internal combustion engine and a multi-speed transmission in series, the shift control device comprising: a control portion providing a downshift control input shaft rotation speed of the multi-speed transmission is increased through a torque-up control of the internal combustion engine toward a post-shift input shaft rotation speed in a neutral state where a release-side frictional engagement device during a downshift of the multi-speed transmission is released, an engagement-side frictional engagement device to be engaged after the shift; and a torque setting portion setting a required torque of the internal combustion engine in the torque-up control of the internal combustion engine increasing rate of an actual torque of the internal combustion engine becomes smaller in the case of a shift pattern having a large internal inertia of the multi-speed transmission during the downshift as compared to the case of a shift pattern in which the internal inertia is small.