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Patent Searching and Data


Title:
INVERTER CONTROL DEVICE, ELECTRIC POWER STEERING SYSTEM, ELECTRIC VEHICLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/037579
Kind Code:
A1
Abstract:
This inverter control device comprises a PWM pulse generation unit for generating, for each predetermined control cycle, a PWM pulse signal for controlling an inverter. The PWM pulse generation unit generates a PWM pulse signal asynchronous with the control cycle, and generates the PWM pulse signal so as to satisfy conditions that at least three pulses exist in one cycle of a fundamental wave of an output voltage of the inverter, and that the on/off state of the PWM pulse signal is switched at a zero crossing point at which the fundamental wave changes and crosses a value of 0.

Inventors:
AJIMA, Toshiyuki (JP)
TANIGUCHI, Shun (JP)
NAKAO, Noriya (JP)
NEMOTO, Takuya (JP)
GOTO, Kosei (JP)
MATSUO, Kentaro (JP)
KADOTA, Keiji (JP)
Application Number:
PCT/JP2022/005924
Publication Date:
March 16, 2023
Filing Date:
February 15, 2022
Export Citation:
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Assignee:
HITACHI ASTEMO, LTD. (JP)
International Classes:
H02M7/48
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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