MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE MOUNTED WITH THE SAME

PROBLEM TO BE SOLVED: To provide a motor control device that is configured to compensate for characteristics of a reverse voltage and a reverse voltage compensating route with a feedforward route and allows actual currents to surely follow a current command value, extensively without delay and witho...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HOSHI YUZURU, SUEHIRO KANAME
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a motor control device that is configured to compensate for characteristics of a reverse voltage and a reverse voltage compensating route with a feedforward route and allows actual currents to surely follow a current command value, extensively without delay and without changing sensitivity to noise, and provide an electric power steering device.SOLUTION: The motor control device drives and controls a motor by current feed-back control based on a current command value and compensates for a motor reverse voltage with an angle of a motor or a reverse voltage compensating signal based on the angle of the motor. An LPF for removing noise is provided in a route for compensating the motor reverse voltage, and an error compensating filter for offsetting a reverse voltage compensating error, a difference between the motor reverse voltage and the reverse voltage compensating signal, is provided in a feedforward route for controlling the motor.SELECTED DRAWING: Figure 11 【課題】ノイズに対する感度を変化させずに、広範囲にわたって遅れなく、逆起電圧及び逆起電圧補償経路の特性をフィードフォワード経路で補償し、実電流を電流指令値に確実に追従させるモータ制御装置を提供すると共に、操舵フィーリングを向上した電動パワーステアリング装置を提供する。【解決手段】電流指令値に基づく電流フィードバック制御でモータを駆動制御すると共に、モータ角度若しくはモータ角速度に基づく逆起電圧補償信号によりモータ逆起電圧の補償を行うモータ制御装置において、モータ逆起電圧を補償する経路にノイズ除去用のLPFが設けられると共に、モータ制御のフィードフォワード経路に、モータ逆起電圧と逆起電圧補償信号との差である逆起電圧補償誤差を相殺する誤差補償フィルタが設けられている。【選択図】図11