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:
Jan. 03, 2017
Filed:
Oct. 15, 2015
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
Jae Chang Kook, Hwaseong-si, KR;
Seong Wook Hwang, Gunpo-si, KR;
Hyun Sik Kwon, Seoul, KR;
Seong Wook Ji, Ansan-si, KR;
Won Min Cho, Hwaseong-si, KR;
Wook Jin Jang, Yongin-si, KR;
Myeong Hoon Noh, Seongnam-si, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/66 (2006.01);
U.S. Cl.
CPC ...
F16H 3/66 (2013.01); F16H 2200/0069 (2013.01); F16H 2200/2012 (2013.01); F16H 2200/2046 (2013.01);
Abstract
A transmission for a vehicle includes: a first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set each including three rotary elements; and a plurality of friction members for controlling rotation of the rotary elements. The transmission improves fuel efficiency by implementing multiple steps of shifting and improves vehicle driving comfort by using operating points in a low RPM range of an engine.