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:
Oct. 18, 2022
Filed:
Mar. 15, 2021
Nsk Ltd., Tokyo, JP;
Tetsuya Kitazume, Maebashi, JP;
NSK LTD., Tokyo, JP;
Abstract
A hands-off detection device includes: a first steering angle acquisition unit configured to acquire a first steering angle of a steering wheel; a second steering angle acquisition unit configured to acquire a second steering angle of a steering mechanism connected to the steering wheel via a torsion bar; a steering angle estimation unit configured to obtain an estimation angle of the first steering angle in a state where the steering wheel is not being grasped on a basis of the second steering angle; and a grasping state determination unit configured to determine a grasping state of the steering wheel on a basis of the frequency component of a angle difference between the first steering angle and the estimation angle and a reference frequency component being the frequency component of the angle difference in the state where the steering wheel is not being grasped.