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. 14, 2012
Filed:
Mar. 19, 2010
Tateki Jozaki, Yokohama, JP;
Hideaki Suzuki, Yokohama, JP;
Ryousuke Nonomura, Kawasaki, JP;
Mamiko Inoue, Machida, JP;
Seiichiro Takahashi, Isehara, JP;
Tatsuo Ochiai, Oiso-machi, JP;
Masato Koga, Hiratsuka, JP;
Masaaki Uchida, Yokosuka, JP;
Ryoji Kadono, Kawasaki, JP;
Tateki Jozaki, Yokohama, JP;
Hideaki Suzuki, Yokohama, JP;
Ryousuke Nonomura, Kawasaki, JP;
Mamiko Inoue, Machida, JP;
Seiichiro Takahashi, Isehara, JP;
Tatsuo Ochiai, Oiso-machi, JP;
Masato Koga, Hiratsuka, JP;
Masaaki Uchida, Yokosuka, JP;
Ryoji Kadono, Kawasaki, JP;
Jatco Ltd, Fuji-shi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A continuously variable transmission includes a variator capable of varying a speed ratio continuously, and a subtransmission mechanism provided in series with the variator. When an actual through speed ratio passes a predetermined mode switch speed ratio, a transmission controller performs a coordinated shift in which a gear position of the subtransmission mechanism is changed and a speed ratio of the variator is varied in an opposite direction to a speed ratio variation direction of the subtransmission mechanism. When the rapid deceleration is determined to be underway, the transmission controller decreases a speed ratio variation amount of the variator in the direction of a High side accompanied by a downshift of the subtransmission mechanism compared with the coordinated shift.