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.

Date of Patent:
Nov. 21, 2017

Filed:

Mar. 14, 2016
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Sung Hyun Cho, Yongin-si, KR;

Seung Sam Baek, Suwon-si, KR;

Ho Young Lee, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 25/00 (2006.01); F16H 61/00 (2006.01); F16D 48/08 (2006.01); F16D 23/02 (2006.01); F16H 61/688 (2006.01); F16H 63/46 (2006.01);
U.S. Cl.
CPC ...
F16D 48/08 (2013.01); F16D 23/02 (2013.01); F16H 61/688 (2013.01); F16H 63/46 (2013.01); F16D 2500/102 (2013.01); F16D 2500/10412 (2013.01); F16D 2500/30415 (2013.01); F16D 2500/50245 (2013.01);
Abstract

A method for learning a touch point of a clutch in a Dual Clutch Transmission (DCT) vehicle includes a synchronization determination step, a drive shaft slip inducement step in which the controller induces a clutch of the drive shaft to slip, a non-drive shaft torque application step in which the controller applies torque to a clutch of the non-drive shaft, and a touch point learning step in which, while the speed of the non-drive input shaft follows the engine speed in the non-drive shaft torque application step, the controller searches for a certain point at which the speed of the non-drive input shaft changes and differs from the speed of the drive input shaft, and learns the point as the touch point of the clutch of the non-drive shaft.


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