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. 08, 2016
Filed:
Nov. 28, 2013
Jatco Ltd, Fuji-shi, Shizuoka, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Daisuke Aoki, Ebina, JP;
Takahiro Kobayashi, Isehara, JP;
Seiichiro Takahashi, Isehara, JP;
Yuta Suzuki, Sagamihara, JP;
JATCO LTD, Fuji-Shi, JP;
NISSAN MOTOR CO., LTD., Yokohama-Shi, JP;
Abstract
A control device for a belt-type continuously variable transmission CVT includes an engine, a belt-type continuously-variable transmitting mechanism; a forward/reverse switching mechanismincluding a forward clutchand a reverse brake; and a hydraulic control circuitconfigured to control a pulley hydraulic pressure and engagement-element pressures for the forward clutchand the reverse brake. The control device includes a selection control means for outputting a pulley hydraulic command to obtain an idle-time clamping pressure which is higher than an idle-time minimum pressure (idle-time MIN-pressure) calculated from an input torque, to the hydraulic control circuit, when the engineis in operation during a selection of N-range. A position of an element clearance generated in the belt can be maintained even if drag torque is inputted.