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:
Sep. 12, 2023
Filed:
Oct. 04, 2021
Nsk Ltd., Tokyo, JP;
Tetsuya Kitazume, Maebashi, JP;
Shoya Maruyama, Maebashi, JP;
NSK LTD., Tokyo, JP;
Abstract
A control device includes a current command value calculation unit configured to calculate a first current command value causing an actuator to generate steering assist torque, a correction value calculation unit configured to, when an absolute value of steering angle is greater than or equal to a threshold value, calculate a correction value for suppressing increase in an absolute value of the steering angle by correcting the steering assist torque, a correction unit configured to calculate a second current command value obtained by correcting the first current command value by the correction value, and a driving unit configured to drive the actuator, based on the second current command value. The correction value calculation unit calculates the correction value, based on first torque, the first torque changing nonlinearly with respect to steering angular velocity.