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. 20, 2002
Filed:
Dec. 22, 2000
Applicant:
Inventors:
G. George Zhu, Columbus, IN (US);
Dennis O. Taylor, Columbus, IN (US);
Thomas L. Bailey, Columbus, IN (US);
Assignee:
Cummins Engine Company, Inc., Columbus, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
G01G 1/903 ; G01G 1/908 ; B60P 5/00 ; B60T 8/18 ;
U.S. Cl.
CPC ...
G01G 1/903 ; G01G 1/908 ; B60P 5/00 ; B60T 8/18 ;
Abstract
A method and apparatus is disclosed for recursively estimating vehicle mass and/or aerodynamic coefficient of a moving vehicle. The vehicle speed and push force data are collected and a segment of qualified data is then selected from the collected data. Newton's second law is integrated to express vehicle mass and/or aerodynamic coefficient in terms of vehicle push force and vehicle speed. This expression is then used in a recursive analysis of the qualified data segment to determine an estimated vehicle mass and/or aerodynamic coefficient.