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:
Feb. 24, 2004
Filed:
Aug. 08, 2001
Yingjie Lin, El Paso, TX (US);
Esau Aguinaga, Chihuahua, MX;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method for compensating signals from an absolute angular position sensor assembly is used in conjunction with an absolute angular position sensor assembly having an input gear coupled to a rotating shaft. The input gear is meshed with an output gear that rotates as the input gear and the shaft rotate. The sensor assembly includes an input gear sensor and an output gear sensor placed in proximity to the input gear and output gear, respectively. The gears are configured so as to be sensed by the sensors. The method includes determining an angular position compensation value that is used to adjust an absolute position of the input gear, which in turn is used to compute the absolute position of the rotating shaft. The angular position compensation value for the revolution N+1 is determined as APCV =(APRS −AAPIG )/&agr;+APCV , wherein APCV is the angular position compensation value for the revolution N+1, APRS is the angular position of the rotating shaft for the revolution N, AAPIG is the adjusted angular position of the input gear for the revolution N, &agr; is a compensation factor that is greater than one, and APCV is angular position compensation value for the revolution N.