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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.:

US 10731548 B1

PDFFull Text
Date of Patent:
Aug. 04, 2020

Filed:

Apr. 04, 2018

Mechanical supercharging system

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventor:

Keiji Yoeda, Numazu, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Hunton Andrews Kurth LLP

Primary Examiner:

Roger L Pang

Int. Cl.
CPC ...
F02B 39/04 (2006.01); F16H 61/02 (2006.01); F02B 33/40 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F16H 59/70 (2006.01); F16H 59/36 (2006.01); F16H 59/68 (2006.01); B60W 30/19 (2012.01);
U.S. Cl.
CPC ...
F02B 39/04 (2013.01); F02B 33/40 (2013.01); F02D 41/0007 (2013.01); F02D 41/023 (2013.01); F16H 61/0204 (2013.01); B60W 30/19 (2013.01); B60W 2510/0638 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/1012 (2013.01); F16H 59/36 (2013.01); F16H 59/70 (2013.01); F16H 2059/366 (2013.01); F16H 2059/6807 (2013.01); Y02T 10/144 (2013.01); Y10T 477/50 (2015.01); Y10T 477/6237 (2015.01); Y10T 477/675 (2015.01);
Abstract

A mechanical supercharging system includes a stepped transmission that connects a crankshaft of an internal combustion engine with driving wheels, a centrifugal supercharger including a rotary drive shaft connected to the crankshaft, a variable speed ratio device that changes a speed ratio of the rotary drive shaft to the crankshaft, the variable speed ratio device being provided between the crankshaft and the rotary drive shaft; and a control device configured to control the speed ratio. The control device increases the speed ratio during the upshift operation more than the speed ratio before start of the upshift operation.

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