乗り心地と操縦安定性の両立を図る自動車用セミアクティブサスペンションの制御系設計

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  • Design of Controller for Automotive Semi-Active Suspension Considering Both Ride Comfort and Driving Stability

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In passive suspension for automobiles, the ride comfort and the driving stability are a trade-off relationship. In this study, a semi-active suspension system of variable stiffness and damping is dealt with. For the semi-active control system, a disturbance accommodation frequency-shaped control method is proposed in order to improve both the ride comfort and the handling performance in a higher level. Furthermore, the frequency control needs the adjustment of many parameters in a design of the frequency weightings, but we suggest method of determining frequency weightings by genetic algorithm by can include the evaluation value that can consider both balance in function of adaptation degree. By carrying out computer simulations, it is demonstrated that the proposed method is effective.

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