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悬架是用来支持车身的系统,通过隔离道路干扰使得乘客感觉舒适、并确保车辆稳定.为此研究了全车模型悬架系统在下列几种控制方式下的性能:被动控制、半主动控制、自适应标准可加性模型(SAM)下的主动控制.全车模型可以为车辆悬架系统提供一些必要的性能参数,如车身偏移、车轮偏移和悬架偏斜.乘坐的舒适性和车辆的操控性决定了所需悬架系统的性能.乘坐的舒适性取决于车身偏移和乘客座位的偏移,而车辆的稳定由其他自由度(如俯仰和滚转)决定.半主动和主动悬架控制的设计通过MATLAB/SIMULINK加以实现,充分考虑了不规则的路面,并以此验证半主动控制和SAM主动控制的性能.实验结果表明,SAM主动控制能够改善乘坐的舒适性和车辆的操控性.
Suspension is a system used to support the car body, which can make the passengers feel comfortable by isolating the road and ensure the stability of the vehicle.Therefore, the performance of the car model suspension system under the following control modes is studied: passive control, semi-active control , Adaptive control under standard additive model (SAM) The full vehicle model provides some of the necessary performance parameters for vehicle suspension systems such as body offset, wheel offset and suspension skew. And controllability of the vehicle determines the performance of the desired suspension system.The ride comfort is dependent on the body offset and the passenger seat offset and the vehicle stability is determined by other degrees of freedom such as pitch and roll Semi-active And active suspension control design by MATLAB / SIMULINK, taking full account of the irregular road surface, and to verify the semi-active control and SAM active control performance.The experimental results show that SAM active control can improve ride comfort and Vehicle handling.