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. 24, 2018
Filed:
Feb. 04, 2015
Kyb Corporation, Tokyo, JP;
Hiroyuki Gotou, Gifu, JP;
Hisazumi Ishikawa, Gifu, JP;
Kazuhiro Sasaki, Gifu, JP;
Yuichiro Okamoto, Hessen, DE;
Nobuyuki Kimura, Ota, JP;
Takayuki Nagase, Ooizumi-machi, JP;
Kazuma Yamazaki, Gyoda, JP;
KYB Corporation, Tokyo, JP;
Abstract
A electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction to return a steering wheel to a neutral position on the basis of a steering angle of the steering wheel, a return command value calculation unit configured to calculate a return command value by correcting the basic return command value by the first correction gain, and an opposite return command value calculation unit configured to calculate an opposite return command value in a direction not to return the steering wheel to the neutral position on the basis of an angular acceleration of an electric motor. A correction return command value is calculated on the basis of the return command value and the opposite return command value and the electric motor is driven by adding the correction return command value to the assist command value.