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. 30, 2011
Filed:
Nov. 18, 2008
Ho Wook Lee, Seoul, KR;
Ho Wook Lee, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
The present invention relates to a system and a method for controlling the thrust force of a belt of a CVT. The method includes: determining whether a rough road condition is satisfied; continuously calculating, in a case that the condition is satisfied, a thrust force for a first predetermined time by gradually increasing a safety factor to a safety factor of the rough road condition; increasing the thrust force of the belt to the calculated thrust force; and maintaining the thrust force according to the safety factor of the rough road condition for a second predetermined time. With that method, belt slip can be prevented and fuel efficiency can be improved.