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:
Jan. 07, 2025
Filed:
Mar. 12, 2021
Kokusai Keisokuki Kabushiki Kaisha, Tama, JP;
Sigeru Matsumoto, Tokyo, JP;
Hiroshi Miyashita, Tokyo, JP;
Kazuyoshi Tashiro, Kanagawa, JP;
Kazuhiro Murauchi, Tokyo, JP;
Hiroyuki Miura, Tokyo, JP;
Akihiro Yonekawa, Kanagawa, JP;
Kazuki Shinohara, Tokyo, JP;
KOKUSAI KEISOKUKI KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A test device includes an input side drive part that drives a steering shaft of a steering device, a control part that controls the input side drive part, and a position detecting part that detects an angular position of the steering shaft. The control part restricts a maximum value of a torque of the steering shaft when the angular position reaches an end-abutment position. The control part also controls driving of the steering shaft by a position control in which the angular position is used as a controlled variable and a torque control in which the torque is used as a controlled variable. The control part performs the position control when the angular position is outside a first angular range including the end-abutment position and switches the driving of the steering shaft from the position control to the torque control when the angular position reaches within the first angular range.