CONTROL DEVICE AND ROTATING ELECTRIC MACHINE SYSTEM

WIPO Patent Application WO/2020/145078

A1

This control device controls a rotating electric machine that comprises a rotor having a magnet part and a stator having a slotless structure with a stator winding. The control device comprises a temperature estimation unit (S10, S20), an overcurrent determination unit (S30, S40, S50), and a control unit (S60, S70). The temperature estimation unit acquires temperature information at least including the temperature of the stator winding and estimates the temperature of the magnet part on the basis of the temperature information. The overcurrent determination unit sets an overcurrent threshold for the current flowing through the stator winding according to the estimated temperature of the magnet part, acquires the current flowing through the stator winding, and determines whether the current flowing through the stator winding is excessive current on the basis of the set overcurrent threshold. The control unit controls the rotating electric machine on the basis of the result of the determination by the overcurrent determination unit.

ISHIDA MINORU (JP)
TAKAHASHI YUKI (JP)
SAKUISHI TSUBASA (JP)
KATAYAMA NAOKI (JP)

PCT/JP2019/049903

July 16, 2020

December 19, 2019

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DENSO CORP (JP)

H02P29/68; H02K11/25; H02K11/27; H02K11/30; H02M7/493; H02P25/024; H02P25/18; H02P25/22; H02P27/06; H02P29/66

WO2018078845A1

2018-05-03

JPH07337072A	1995-12-22
JP2012503972A	2012-02-09
JP2017175844A	2017-09-28
JP2016111793A	2016-06-20

JIN Shunji (JP)

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