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. 12, 2013
Filed:
Jul. 15, 2010
Seiichiro Takahashi, Isehara, JP;
Hiroyasu Tanaka, Atsugi, JP;
Ryousuke Nonomura, Kawasaki, JP;
Jouji Seki, Zama, JP;
Takuichiro Inoue, Fujisawa, JP;
Mamiko Inoue, Ebina, JP;
Tatsuo Ochiai, Oiso-machi, JP;
Seiichiro Takahashi, Isehara, JP;
Hiroyasu Tanaka, Atsugi, JP;
Ryousuke Nonomura, Kawasaki, JP;
Jouji Seki, Zama, JP;
Takuichiro Inoue, Fujisawa, JP;
Mamiko Inoue, Ebina, JP;
Tatsuo Ochiai, Oiso-machi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A continuously variable transmissionfor a vehicle includes a variatorthat modifies a speed ratio continuously and a subtransmission mechanismthat is connected in series to the variatorand applies a first speed and a second speed, which is higher than the first speed, selectively. When the vehicle is running under a low load/high speed upshift condition having a lower load or a higher speed than a normal upshift condition, the subtransmission mechanismis upshifted from the first speed to the second speed at a lower vehicle speed than under the normal upshift condition, and as a result, both rotation variation in an internal combustion engineaccompanying upshifting of the subtransmission mechanismand an increase in a fuel consumption amount of the internal combustion enginedue to the shift operation in the continuously variable transmissionare suppressed.