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. 05, 2008
Filed:
Mar. 09, 2005
Takashi Imanishi, Fujisawa, JP;
Eiji Inoue, Fujisawa, JP;
Takumi Sinojima, Fujisawa, JP;
Toshirou Toyoda, Fujisawa, JP;
Takashi Imanishi, Fujisawa, JP;
Eiji Inoue, Fujisawa, JP;
Takumi Sinojima, Fujisawa, JP;
Toshirou Toyoda, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A continuously variable transmission apparatus includes a toroidal continuously variable transmission, a planetary gear transmission and a clutch apparatus that connects the toroidal continuously variable transmission and the planetary gear transmission. The clutch apparatus includes: a low speed clutch a high speed clutch and a controller. The controller controls the transmission ratio of the toroidal continuously variable transmission so that rotational speeds of members connected via the clutch apparatus equals with each other, and then disengages the one of the low speed clutch and the high speed clutch after engaging the other, whereby an instance of simultaneously transmitting the power by the two clutches is set during a time period until disconnecting the other clutch after starting to transmit the power by the one clutch.