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. 15, 2008
Filed:
Feb. 16, 2005
Muneer Abusamra, Southern Pines, NC (US);
Ludger Ronge, Eriskirch, DE;
Charles E. Allen, Jr., Rochester Hills, MI (US);
Winfried Sturmer, Euerbach, DE;
Karl-fritz Heinzelmann, Meckenbeuren, DE;
Loren Christopher Dreier, Vass, NC (US);
Robert Anthony Sayman, Laurinburg, NC (US);
James Henry Devore, Laurinburg, NC (US);
Ronald Peter Muetzel, Friedrichshafen, DE;
Muneer AbuSamra, Southern Pines, NC (US);
Ludger Ronge, Eriskirch, DE;
Charles E. Allen, Jr., Rochester Hills, MI (US);
Winfried Sturmer, Euerbach, DE;
Karl-Fritz Heinzelmann, Meckenbeuren, DE;
Loren Christopher Dreier, Vass, NC (US);
Robert Anthony Sayman, Laurinburg, NC (US);
James Henry DeVore, Laurinburg, NC (US);
Ronald Peter Muetzel, Friedrichshafen, DE;
Meritor Transmission Corporation, Troy, MI (US);
Abstract
A clutch assembly includes a reaction surface that provides several disengagement surfaces that cause axial movement of a front plate to reduce torque transmission at rotational speeds above an engagement speed. The disengagement surfaces reduce torque to break torque lock at rotational speeds corresponding to desired gear changes. The clutch assembly is controlled to tailor the relationship between clutch torque and engine speed to current vehicle operating conditions to provide consistent vehicle performance over different operating conditions.