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:
May. 02, 2017
Filed:
Nov. 16, 2015
Hyundai Motor Company, Seoul, KR;
Seong Wook Ji, Ansan-si, KR;
Kang Soo Seo, Yongin-si, KR;
Jae Chang Kook, Hwaseong-si, KR;
Hyu Tae Shim, Hwaseong-si, KR;
Myeong Hoon Noh, Seongnam-si, KR;
Won Min Cho, Hwaseong-si, KR;
Wook Jin Jang, Yongin-si, KR;
Seong Wook Hwang, Gunpo-si, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A multi-stage transmission for a vehicle includes an input shaft, an output shaft, first to fourth planetary gear devices each having three rotary elements and transmitting rotary forces between the input and output shafts, and at least six shifting elements connected to the rotary elements of the planetary gear devices. Of the first planetary gear device, the first rotary element is installed to be fixable by any one of the shifting elements and permanently connected to the second rotary element of the third planetary gear device and the third rotary element of the fourth planetary gear device, the second rotary element is variably connected to the third rotary element of the second planetary gear device and the third rotary element of the third planetary gear device, and the third rotary element is variably connected to the first and second rotary elements of the second planetary gear device.