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. 27, 2002
Filed:
Jun. 11, 1998
Applicant:
Inventor:
Angela Dawn Magruder, Merritt Island, FL (US);
Assignee:
Lear Automotive Dearborn, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 1/100 ;
U.S. Cl.
CPC ...
B60Q 1/100 ;
Abstract
A microprocessor based control detects actuation of the vehicle's braking system and compares the actual magnitude of the lamp current drawn by the system's brake lamps during illumination with reference signals indicative of the nominal value of brake lamp excitation current required for illumination of a full complement of brake lamps and that associated with successively lesser numbers of operating lamps, to determine the presence and number of inoperative lamps and to record the existence of failed lamps in memory which may be accessed by external diagnostic equipment.