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:
Nov. 03, 2015
Filed:
Oct. 17, 2011
Applicant:
Hiroshi Suzuki, Okazaki, JP;
Inventor:
Hiroshi Suzuki, Okazaki, JP;
Assignee:
JTEKT CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01); H02P 25/22 (2006.01); H02P 29/02 (2006.01); H02P 5/747 (2006.01);
U.S. Cl.
CPC ...
B62D 5/04 (2013.01); B62D 5/0403 (2013.01); B62D 5/046 (2013.01); B62D 5/0484 (2013.01); H02P 5/747 (2013.01); H02P 25/22 (2013.01); H02P 29/022 (2013.01);
Abstract
A steering force assisting device that includes an electric motor and includes independent two sets of motor driving circuit and control unit, and the electric motor includes coils having the same polarity and different motor characteristics, the coils being wound around each of teeth of a stator of the electric motor. The motor characteristics are a high speed/low torque characteristic and a low speed/high torque characteristic, and may be selected on the basis of the running condition of a vehicle.