ELECTRIC POWER STEERING DEVICE

An electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction returning the steering wheel to a neutral position, on the basis of detection results of a steering angle detector detecting a steering angle o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GOTOU, Hiroyuki, OKAMOTO, Yuichiro, SASAKI, Kazuhiro, YAMAZAKI, Kazuma
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction returning the steering wheel to a neutral position, on the basis of detection results of a steering angle detector detecting a steering angle of the steering wheel, a first correction gain calculation unit configured to calculate a first correction gain correcting the basic return command value, on the basis of detection results of a vehicle speed detector detecting vehicle speed, and a second correction gain calculation unit configured to calculate a second correction gain correcting the basic return command value, on the basis of a change amount of the steering torque detected by the torque sensor. The basic return command value is corrected by the first and second correction gains so as to calculate a return command value. The return command value is added to the assist command value so as to drive the electric motor.