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:
Apr. 06, 2021
Filed:
Aug. 29, 2019
Applicant:
Mando Corporation, Pyeongtaek-si, KR;
Inventor:
Jong Hoon Lee, Incheon, KR;
Assignee:
MANDO CORPORATION, Pyeongtaek-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/00 (2016.01); H02P 21/22 (2016.01); H02P 21/06 (2016.01); G01R 19/165 (2006.01); G01R 35/00 (2006.01); B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
H02P 21/22 (2016.02); G01R 19/16528 (2013.01); G01R 35/00 (2013.01); H02P 21/06 (2013.01); B62D 5/049 (2013.01);
Abstract
A method and apparatus for detecting a failure of a current sensor measuring the magnitude of a current, by which a motor is driven. A required current calculator calculates a phase and a magnitude of a current required for a motor, in accordance with a torque required for the motor. An estimated current calculator calculates an estimated current, in accordance with the phase and the magnitude of the required current. A failure detector detects a failure of a current sensor by comparing the estimated current with a current measured by the current sensor.