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    • 5. 发明授权
    • Motor drive control apparatus
    • US11881798B2
    • 2024-01-23
    • US17784066
    • 2020-12-07
    • HITACHI ASTEMO, LTD.
    • Tomio Sakashita
    • H02P23/14H02P25/22
    • H02P23/14H02P25/22
    • A motor drive control apparatus includes energization systems for energizing a motor having a plurality of independent winding sets, with the energization systems corresponding one-to-one to the winding sets. A plurality of sensors is provided for each of the energization systems. A controller is provided for each of the energization systems and controls energization of the corresponding winding set based on output signals of the corresponding sensors. A plurality of sub power supply paths is provided for their respective energization systems. Each sub power supply path connects a power supply path for supplying power to the corresponding sensors and a power supply path in another energization system. A semiconductor switch is provided for each of the sub power supply paths, and, between two different energization systems, when one of the two energization systems exhibits a sensor power supply failure, electrically connects the power supply paths of these two energization systems.