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:
Mar. 10, 2020
Filed:
Aug. 07, 2017
Nissan Motor Co., Ltd., Kanagawa, JP;
Ryohey Toyota, Kanagawa, JP;
Tomoyuki Nakano, Kanagawa, JP;
Hiromu Terai, Kanagawa, JP;
Akira Takano, Kanagawa, JP;
Kouhei Toyohara, Sagamihara, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Abstract
A control method of a continuously variable transmission includes supplying oil pressure to a line-pressure oil passage and a secondary pulley oil chamber by a source pressure oil pump, controlling a flow of oil into and from a primary pulley oil chamber by an electric oil pump arranged in an oil passage between the primary pulley oil chamber and the secondary pulley oil chamber, and limiting a discharge flowrate of the electric oil pump to an amount smaller than a discharge flowrate of the source pressure oil pump.