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:
Mar. 04, 2008
Filed:
Feb. 11, 2005
Ludger Ronge, Eriskirch, DE;
Charles E. Allen, Jr., Rochester Hills, MI (US);
Winfried Sturmer, Euerbach, DE;
Karl-fritz Heinzelmann, Meckenbeuren, DE;
James H. Devore, Laurinburg, NC (US);
Loren C. Dreier, Vass, NC (US);
Robert A. Sayman, Laurinburg, NC (US);
Ronald P. 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;
James H. DeVore, Laurinburg, NC (US);
Loren C. Dreier, Vass, NC (US);
Robert A. Sayman, Laurinburg, NC (US);
Ronald P. Muetzel, Friedrichshafen, DE;
Muneer AbuSamra, Southern Pines, NC (US);
Meritor Transmission Corporation, Troy, MI (US);
Abstract
A vehicle power train system includes an engine, a transmission, and a centrifugal clutch assembly that selectively couples an engine output shaft to a transmission input shaft in response to an operator input. An operator selects a desired vehicle-operating mode by actuating a shift lever or shift switch from a gear selection device. The gear selection device indicates many different operating modes and includes a low-speed maneuvering mode that is selected for low-speed operations such as coupling a truck to a trailer, or positioning a truck and/or trailer in relation to a loading dock area. Once the low-speed maneuvering mode is selected, a control unit controls at least one of engine speed and engine torque to indirectly effect clutch slippage, which results in improved vehicle speed control at low-speed operations.