| 201B2 |
|---|
| Active Suspension Control Taking Weight Changes into Consideration |
| AUTHORS |
| Junichiro Mikita, Makoto Wada, Masahiro Oya (Kyusyu Instirute of Technology) Toshinori Suehiro (Mechanics and Electronics Research Institute Fukuoka Industrial Technology Center) |
| ABSTRACT |
| In recently, control strategies using active automotive suspensions have become of general interest. A lot of design methods to improve ride comfort have been proposed. In general, weight of vehicle changes in wide range. If the changes of weight are ignored, we cannot design a controller to achieve good ride comfort. To resolve the problem, the authors have proposed a model tracking controller. The ideal model is designed by using one nominal model with one nominal weight. However, there is the problem in the proposed control system that when the weight of vehicle changes from the nominal weight, required magnitude of force becomes larger than that for nominal weight. That is, when actuators are chosen so that the maximum force can be generated, there is much room for improvement in ride comfort. In this paper, to overcome the problem mentioned above, a new strategy to design an ideal model is proposed. The new ideal model is designed by using two nominal models with different nominal weight. In model tracking control system using the new ideal model, it is shown by using numerical simulations that the required magnitude of force does not change even if the weight of vehicle changes and the ride comfort becomes better than that in conventional controller using only one nominal weight. |
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Annual Conference 2002