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:
Jun. 07, 2022
Filed:
Mar. 12, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
To improve control characteristics of an inverter while suppressing manufacturing cost. An inverter control deviceis a device for controlling an inverter devicehaving a plurality of switching elements. The inverter control deviceincludes a current control unitthat calculates three phase voltage command signals Vu*, Vv*, and Vw* based on a d-axis current command signal id* and a q-axis current command signal iq* at each predetermined calculation period T, a sampling period conversion unitthat outputs three phase voltage command signals Vu**, Vv**, and Vw** after update at each predetermined update period Tdifferent from the calculation period Tbased on a calculation result of the three phase voltage command signals Vu*, Vv*, and Vw* by the current control unit, and a gate signal generation unitthat generates a gate signal for switching-driving a plurality of the switching elements based on the three phase voltage command signals Vu**, Vv**, and Vw** after update output from the sampling period conversion unit