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:
Nov. 19, 2024
Filed:
Dec. 08, 2020
Hitachi Astemo, Ltd., Hitachinaka, JP;
Takafumi Hara, Tokyo, JP;
Toshiyuki Ajima, Tokyo, JP;
Akihiro Ashida, Hitachinaka, JP;
Kiyoshi Kuroda, Hitachinaka, JP;
Yoshinori Aoshima, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A deviation between a detection result of an output current of an inverter and an actual current is suppressed. A current detection unitdetects a three-phase AC current output from an inverteror input to the inverter. An inverter control devicecontrols the inverterbased on a current detection value based on a detection result of the three-phase AC current by the current detection unitand a predetermined current command value. The inverter control devicecorrects the current detection value so as to correct a detection error of the three-phase AC current generated due to a delay time of a filterwhich is a filter element provided in the current detection unit