A rear steering system can improve vehicle stability by actively controlling the rear wheel angles. For designing the rear steering system, environmental conditions, performance deterioration due to ageing and component variation as a result of manufacturing tolerance under mass production must be taken into consideration. The authors have applied two-degree-of-freedom (2DOF) feedback control with feed-forward control for the motor servo control so that the rear steering actuator can track the target rear steering angle accurately and stably. The control system is designed based upon a nominal mathematical model and its variation range. As a result, the rear steering actuator can be controlled with excellent performance and high reliability. This paper describes the mathematical model construction in the frequency domain and a robust motor servo controller design based on 2DOF feedback control with feed forward control.
Development of robust motor servo control for rear steering actuator based on two-degree-of-freedom control system
Entwicklung einer robusten Servomotorregelung für einen Hinterachslenkungs-Aktuator
International Journal of Vehicle Design ; 29 , 1/2 ; 51-64
2002
14 Seiten, 14 Bilder, 2 Tabellen, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
SAE Technical Papers | 1999
|British Library Conference Proceedings | 1999
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