Title:
ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/057728
Kind Code:
A1
Abstract:
This electric motor control device comprises: a first drive system including a first MCU and a first inverter; and a second drive system including a second MCU and a second inverter. The first MCU performs drive control on an electric motor by the first inverter and also performs a failure diagnosis by energizing the first inverter. When a failure occurs in the first drive system, the second MCU performs drive control on the electric motor by the second inverter connected to an electrical path connecting the first inverter and the electric motor to each other and also performs the failure diagnosis by energizing the second inverter. The first MCU performs the failure diagnosis on the first inverter when the second inverter is not energized in the second drive system, and the second MCU performs the failure diagnosis on the second inverter when the first inverter is not energized in the first drive system.
Inventors:
SAKASHITA TOMIO (JP)
ISHII AKIRA (JP)
KANEKO SUSUMU (JP)
ISHII AKIRA (JP)
KANEKO SUSUMU (JP)
Application Number:
PCT/JP2023/027092
Publication Date:
March 21, 2024
Filing Date:
July 25, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P27/06
Domestic Patent References:
| WO2019049731A1 | 2019-03-14 | |||
| WO2017159160A1 | 2017-09-21 | |||
| WO2019053992A1 | 2019-03-21 |
Foreign References:
| JP2014091455A | 2014-05-19 | |||
| JP2015202019A | 2015-11-12 |
Attorney, Agent or Firm:
OGAWA, Moriaki et al. (JP)
Download PDF: