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:
Feb. 04, 2025
Filed:
Nov. 26, 2021
Jatco Ltd, Fuji, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Yuji Oishi, Sagamihara, JP;
Takurou Kawasumi, Ebina, JP;
Yoshihisa Kodama, Sagamihara, JP;
Seiichirou Takahashi, Isehara, JP;
Hironori Miyaishi, Sagamihara, JP;
JATCO LTD, Fuji, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A transmission comprising: a primary pulley; a secondary pulley; a transmission member wound around the primary pulley and the secondary pulley; an oil pump configured to supply oil; a hydraulic control circuit configured to adjust a pressure of the oil supplied from the oil pump to a line pressure which is a source pressure of a primary pulley pressure supplied to the primary pulley and a secondary pulley pressure supplied to the secondary pulley; a line pressure detection unit configured to detect the line pressure; and a controller configured to control the hydraulic control circuit, wherein the controller is configured to select, as a target pulley pressure, a higher one of a target value of the primary pulley pressure and a target value of the secondary pulley pressure, variably set, according to an oil temperature, a target differential pressure including a detection variation of the line pressure detection unit that varies according to the oil temperature, set a target line pressure which is a target value of the line pressure to a total pressure of the target pulley pressure and the target differential pressure, and control the hydraulic control circuit such that the detected line pressure is adjusted to the target line pressure.