ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide an electric power steering device which can secure current responsiveness while suppressing vibration caused by decoupling control.SOLUTION: When decoupling control to compensate interference components of a d-axis command voltage and a q-axis command voltage is carr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KASHIMA TOKUMI, YOSHITAKE ATSUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an electric power steering device which can secure current responsiveness while suppressing vibration caused by decoupling control.SOLUTION: When decoupling control to compensate interference components of a d-axis command voltage and a q-axis command voltage is carried out, a corrected angular velocity is determined so as to reduce influences of an angular velocity of a rotator in the q-axis decoupling correction value when the angular velocity of the rotator is equal to or less than a predetermined value, and also a corrected angular velocity is determined so as to obtain a change rate of the angular velocity of the rotator in the d-axis decoupling correction value and the q-axis decoupling correction value to be almost equal to the change rate of the angular velocity of the rotator when the angular velocity of the rotator is larger than the predetermined value.