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:
May. 22, 2018
Filed:
Nov. 22, 2016
Hyundai Motor Company, Seoul, KR;
Seoyon Electronics Co., Ltd., Ansan-si, Gyeonggi-do, KR;
Jeong Gi Yun, Seoul, KR;
Dong June Song, Anyang-si, KR;
Hun Joung Yoon, Suwon-si, KR;
Kwan Hyung Lee, Pyeongtaek-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
SEOYON ELECTRICS CO., LTD., Ansan-si, Gyeonggi-Ro, KR;
Abstract
A ripple current sensing type motor controlling apparatus includes: an H bridge circuit switched depending on at least one control; a first resistor of which one end is connected to one end of the motor through the H bridge circuit and the other end is connected to a ground; a second resistor of which one end is connected to the other end of the motor through the H bridge circuit and the other end is connected to one end of the first resistor and is connected to one end of the motor through the H bridge circuit; and a controller calculating a RPM of the motor using a voltage across the first resistor in the case in which the driving power is applied to the motor and calculating the RPM of the motor using a voltage across the second resistor in the case in which the driving power is blocked.