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1. (WO2015125543) ELECTRIC MOTOR DRIVE CONTROL DEVICE AND DRIVE CONTROL METHOD

Pub. No.:    WO/2015/125543    International Application No.:    PCT/JP2015/051555
Publication Date: Fri Aug 28 01:59:59 CEST 2015 International Filing Date: Thu Jan 22 00:59:59 CET 2015
IPC: H02P 27/06
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: KOSEKI, Tomonobu
小関 知延
YATSUGI, Tomishige
矢次 富美繁
Title: ELECTRIC MOTOR DRIVE CONTROL DEVICE AND DRIVE CONTROL METHOD
Abstract:
The present invention relates to an electric motor drive control device equipped with a plurality of activation paths consisting of an inverter and windings corresponding to a plurality of phases and also to an electric motor drive control method. The electric motor drive control device comprises: a current detection unit for detecting currents between the output points of an inverter and windings or between the windings and the connection point of the windings; an inverter setting unit for setting an inverter in an activation path where an activation abnormality has occurred to a predetermined state; a torque detection unit for, based on the currents detected by the current detection unit in the activation path where the activation abnormality has occurred, detecting torque; and a control unit for, based on the torque detected by the torque detection unit, controlling an inverter that is normal. This improves the controllability of an electric motor when a braking torque occurs due to an activation abnormality.