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:
Jul. 08, 2003
Filed:
Dec. 18, 2000
Applicant:
Inventors:
Paschal J. Romano, Fenton, MI (US);
Daniel A. Crawford, Burton, MI (US);
Diana K. Voges, Fenton, MI (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 1/738 ;
U.S. Cl.
CPC ...
G01C 1/738 ;
Abstract
A method for automatically calibrating a vehicle speed sensor signal input to an electronic control system includes operating a vehicle at a reference speed. A speed signal pulse period, generated by a vehicle speed sensor operatively coupled to the vehicle, is measured. The measured speed signal pulse period is then compared to a stored set of pulse period scalings within the electronic control system. A corresponding pulse period scaling is stored in memory if the measured speed signal pulse period matches one of the stored set of pulse period scalings.