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. 11, 2006
Filed:
Sep. 17, 2004
Toshio Kohno, Nagoya, JP;
Atsuhisa Asada, Obu, JP;
Toshio Kohno, Nagoya, JP;
Atsuhisa Asada, Obu, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
An electric power steering apparatus includes a first resolver whose pole pair number is 'm' and a second resolver whose pole pair 'n'. The electric power steering apparatus further includes a torsion calculating means which calculates the a torsion angle of the torsion bar from a difference between the rotating angle detected by the first resolver and the rotating angle detected by the second resolver. The torsion calculating means compensates the angle difference by a compensation value obtained by a table on the basis of the value obtained by multiplying an electrical angle of the first resolver by ‘n’ and the value obtained by multiplying an electrical angle of the second resolver by ‘m’.