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. 09, 1990
Filed:
Dec. 24, 1987
Applicant:
Inventors:
John N Rogers, Tucson, AZ (US);
James M Lady, Tucson, AZ (US);
Donald W Bilsbarrow, Tucson, AZ (US);
Rene S Trujillo, Tucson, AZ (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ; G06F / ;
U.S. Cl.
CPC ...
36442601 ; 73126 ; 73132 ;
Abstract
A brake test method measures the brake force per axle of a vehicle by having an operator linearly depress the vehicle brake pedal while the axle's left and right wheels positioned on torque motor driven, constant speed rollers. The roller drive torque magnitude is periodically sampled and the samples are filtered to remove ovality discontinuities, the left and right side filtered samples are then compared to detect the maximum brake force imbalance.