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. 17, 2019
Filed:
May. 16, 2018
Hocheol Shin, Daejeon, KR;
Chang-hoi Kim, Daejeon, KR;
Yong-chil Seo, Daejeon, KR;
Jongwon Park, Daejeon, KR;
Byung-seon Choi, Daejeon, KR;
Jeikwon Moon, Daejeon, KR;
Hocheol Shin, Daejeon, KR;
Chang-Hoi Kim, Daejeon, KR;
Yong-Chil Seo, Daejeon, KR;
Jongwon Park, Daejeon, KR;
Byung-Seon Choi, Daejeon, KR;
Jeikwon Moon, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Abstract
Disclosed are a device and a method for controlling a motor. According to a specific embodiment of the present disclosure, an input shaft of a motor is provided with a low-resolution absolute position detector and an output shaft of the motor is provided with a low-resolution absolute position detector having a resolution greater than or equal to a reduction gear ratio. An initial offset and an offset are defined accordingly, and a high-resolution output shaft absolute position is derived from a relational expression, which is defined by an input shaft absolute position received at a predetermined time interval, a derived offset, an output shaft absolute position, and the reduction gear ratio, such that it is possible to easily detect the high-resolution output shaft absolute position by using a low-price absolute position detector without the modification or addition of an actuator.