MOTOR CONTROL DEVICE, ELECTRIC POWER STEERING DEVICE PROVIDED WITH SAME, AND VEHICLE

[Problem] An object of the present invention is to provide a highly reliable motor control unit which can securely prevent the power supply reset of a control section even when the power supply (battery) voltage decreases. [Means for solving the problem] The present invention is the motor control un...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FUKINUKI Shigeru, URYU Kyosho
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:[Problem] An object of the present invention is to provide a highly reliable motor control unit which can securely prevent the power supply reset of a control section even when the power supply (battery) voltage decreases. [Means for solving the problem] The present invention is the motor control unit which drives a motor through an inverter based on a calculated command value of a control section to which a power supply voltage is supplied, comprising: a charging/discharging mechanism for charging and discharging electric charges of an inverter voltage supplied to the inverter; and a separation means for separating the charging/discharging mechanism from the power supply voltage, wherein when a warning signal informing of a drop in the power supply voltage is inputted, the charging/discharging mechanism is separated from the power supply voltage by the separation means as well as a voltage is applied to the control section from the charging/discharging mechanism to avoid power supply reset of the control section. The motor may be a motor with multi-system windings.