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:
Aug. 20, 2002
Filed:
Jul. 21, 2000
Hiromasa Sakai, Yokosuka, JP;
Toshikazu Oshidarai, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In an infinite speed ratio transmission, a rotation of an input shaft ( ) is input both to a continuously variable transmission ( ) and a fixed speed ratio transmission ( ). A CVT output shaft ( ) of the toroidal continuously variable transmission ( ) is joined to a sun gear ( A) of a planetary gear set ( ), an output shaft ( C) of the fixed speed ratio transmission ( ) is joined to a planet carrier ( B) of the planetary gear set ( ), and a vehicle is driven under the output of a ring gear ( C) of the planetary gear set ( ). A controller of the infinite speed ratio transmission comprises an actuator ( ) which varies an amount of torque transmitted between the input shaft ( ) and the CVT output shaft ( ). A microprocessor ( ) controls the actuator ( ) so that a torque in the opposite direction to the vehicle travel direction shown by a selection range of a selector lever ( ) is not transmitted by the continuously variable transmission ( ).