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:
May. 26, 2020
Filed:
Mar. 14, 2018
Applicant:
Nsk Ltd., Tokyo, JP;
Inventor:
Takahiro Tsubaki, Maebashi, JP;
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01); B62D 6/00 (2006.01); B62D 15/02 (2006.01); B60W 10/20 (2006.01);
U.S. Cl.
CPC ...
B62D 5/0463 (2013.01); B62D 5/0472 (2013.01); B62D 6/008 (2013.01); B60W 10/20 (2013.01); B60W 2510/20 (2013.01); B60W 2540/18 (2013.01); B60W 2710/20 (2013.01); B62D 15/021 (2013.01);
Abstract
An electric power steering apparatus that easily obtains desired steering torques to a steering angle without being affected by a road surface state and changes of mechanism characteristics of a steering system due to aging. The apparatus includes a target steering torque generating section to generate a target steering torque based on at least one of EPS/vehicle information, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate the current command value based on the target torsional angle, a steering angle, a torsional angle of a torsion bar and a motor angular velocity.