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. 13, 2007
Filed:
Mar. 05, 2002
Sadaaki Mori, Mie, JP;
Hideki Jonokuchi, Kashihara, JP;
Hirohide Inayama, Yamatokoriyama, JP;
Atsushi Ishihara, Headington, GB;
Sadaaki Mori, Mie, JP;
Hideki Jonokuchi, Kashihara, JP;
Hirohide Inayama, Yamatokoriyama, JP;
Atsushi Ishihara, Headington, GB;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
The power steering apparatus comprises a torque sensor for detecting a steering torque applied to a steering wheel and a steering assist motor which is driven to rotate based on the detected steering torque. The motor is driven under field weakening control in a high-speed rotation area. The motor is a brushless motor comprising a rotor having a plurality of permanent magnets which are respectively fixed in a plurality of recesses provided in a rotor core. With the electric power steering apparatus, a steer-assisting force can be obtained in high-speed steering.