Title:
DRIVE CONTROL DEVICE FOR ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JP2015154695
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve motor controllability in the case where a brake current is generated by electrification abnormality in any one of a plurality of electrification systems in a drive control device for an electric motor including the plurality of electrification systems, each electrification system being formed from an inverter and coils corresponding to a plurality of phases.SOLUTION: When electrification abnormality occurs in any one of a plurality of electrification systems, an inverter in the electrification system where the electrification abnormality occurs is controlled into a predetermined state. A current is detected between an output point of the inverter in the electrification system where the electrification abnormality occurs and a coil or between a coil and a junction point of the coil. On the basis of the detected current, brake torque is detected. On the basis of the detected brake torque, inverters in normal electrification systems are controlled.
Inventors:
KOSEKI TOMONOBU
YATSUGI FUMISHIGE
YATSUGI FUMISHIGE
Application Number:
JP2014029411A
Publication Date:
August 24, 2015
Filing Date:
February 19, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
H02P27/06
Domestic Patent References:
| JP2011078230A | 2011-04-14 | |||
| JP2011091962A | 2011-05-06 | |||
| JP2009278790A | 2009-11-26 | |||
| JP2009195026A | 2009-08-27 |
Attorney, Agent or Firm:
Moriaki Ogawa
Haruyuki Nishiyama
Mitsuji Sekiya
Tomijio Sasashima
Haruyuki Nishiyama
Mitsuji Sekiya
Tomijio Sasashima
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