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:
Nov. 13, 2001
Filed:
Mar. 06, 2000
Applicant:
Inventor:
Robert P Uhlig, Rochester Hills, MI (US);
Assignee:
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 7/00 ;
U.S. Cl.
CPC ...
G01M 7/00 ;
Abstract
The vibration damping properties of brake rotors and drums can be represented accurately and repeatably by a single factor obtained from a curve fitting based on an eighth order sine function. A series of test points taken only around one or more vibrational antinodes is used to measure resonant frequencies and vibration decay times around the periphery of a part. This data is then used to determine Q-factors, which are found to vary sinusoidally around an annular brake part.