Drive device

The invention provides a drive device capable of suppressing vibration while suppressing an increase in cost and an increase in weight. A drive device (20) is provided with: an electric motor (MG) including a stator (30) having a stator core (32) and a stator coil (34), and a rotor (40); a drive gea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NITO MASARU, YASUI, JUNICHIRO, MINAMI KAZUKI, NISHINO TATSUYA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a drive device capable of suppressing vibration while suppressing an increase in cost and an increase in weight. A drive device (20) is provided with: an electric motor (MG) including a stator (30) having a stator core (32) and a stator coil (34), and a rotor (40); a drive gear (52) connected to a rotor shaft (46), which is a shaft of the rotor; and an electronic control device (90) that controls the drive current flowing to the stator coil, in which the number of teeth (Z) of the drive gear is set such that the number of times of torque pulsation generated in the motor and the number of times of variation in meshing torque (Tgear) generated in the drive gear match each other. When the magnitude of the vibration of the drive gear caused by the fluctuation of the torque ripple and the meshing torque exceeds a predetermined determination value, the electronic control device executes harmonic superposition control in which the harmonic current and the fundamental wave of the drive current