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. 20, 2015
Filed:
Mar. 01, 2012
Applicants:
Jae Woong Hwang, Yongin-si, KR;
Yong Wook Jin, Suwon-si, KR;
Wan Soo OH, Yongin-si, KR;
Inventors:
Assignee:
Hyundai Motor Company, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 48/12 (2006.01); B60W 10/06 (2006.01); B60W 10/115 (2012.01); B60W 30/18 (2012.01); F16H 61/00 (2006.01); F16H 61/21 (2006.01); F16H 61/686 (2006.01); F16H 59/46 (2006.01); F16H 59/18 (2006.01);
U.S. Cl.
CPC ...
B60W 10/06 (2013.01); B60W 10/115 (2013.01); B60W 30/18072 (2013.01); B60Y 2300/432 (2013.01); B60W 2030/18081 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/1015 (2013.01); B60W 2530/16 (2013.01); B60W 2540/10 (2013.01); B60W 2540/12 (2013.01); B60W 2550/142 (2013.01); B60W 2710/025 (2013.01); B60Y 2300/46 (2013.01); F16H 61/00 (2013.01); F16H 61/21 (2013.01); F16H 61/686 (2013.01); F16H 2059/465 (2013.01); F16H 2061/0015 (2013.01); F16H 2200/006 (2013.01); F16H 2200/201 (2013.01); F16H 2200/2023 (2013.01); F16H 2200/2046 (2013.01); F16H 2200/2066 (2013.01); F16D 2500/1085 (2013.01); F16D 2500/3127 (2013.01); F16D 2500/5085 (2013.01); F16H 2059/186 (2013.01); Y02T 10/76 (2013.01);
Abstract
A method for controlling a clutch of an automatic transmission for improvement of fuel efficiency may include determining whether external driving conditions of a vehicle meets coasting conditions, determining a clutch slip control time and an amount of clutch slip torque according to internal driving conditions of the vehicle, performing slip control on a clutch that works at each step of the automatic transmission using the determined clutch slip control time and torque, wherein an engine brake torque transmitted to a final output shaft of the automatic transmission may be reduced.