Crowell & Moring LLP
Inverter control device
An object of the invention is to correct a variation of a gain of a current sensor without causing an increase in size and a high cost of an inverter control device. An inverter control device according to the invention includes a 3-phase/dq-axis conversion unit which converts the output current detected by a current sensor into a dq-axis current and a gain adjustment unit which adjusts a detection gain of the current sensor for each phase. In a case where a current value of a secondary harmonic component contained in the dq-axis current is equal to or more than a predetermined threshold, the gain adjustment unit corrects the gain of the current sensor such that the current value of the secondary harmonic component becomes less than the threshold.
Hitachi Automotive Systems, Ltd.
H B H H
H02P B62D H02P H02P
inventional additional inventional inventional
Hirokazu Shigeyuki Hiroyuki Hiroshi
Matsui Nonomura Yamada Tamura