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:
Jul. 06, 2021
Filed:
Nov. 13, 2018
Jatco Ltd, Fuji, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Junki Matsui, Odawara, JP;
JATCO LTD, Fuji, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A CVT is provided with a primary pulley () and a secondary pulley () between which a belt () is wound, and hydraulic pressure control valves () which control pulley hydraulic pressures. A CVT controller () sets a base current indicated value to be output to solenoids () of the hydraulic pressure control valves (), on the basis of a pulley hydraulic pressure indicated value. A dither control unit () of the CVT controller () superimposes a dither current onto the base current indicated value to be output to the solenoids () if, during pulley hydraulic pressure control, the situation is determined, on the basis of belt slip determination information, to be such that belt slipping is highly likely to occur.