摘要
针对汽车主动悬架系统在转向过程中的动力学行为建立了全车转向模型.从提高汽车转向时的乘坐舒适性和操纵稳定性角度出发,从时域和频域2方面研究了整车系统的最优控制问题.设计并用TMS320F206DSP处理器实现最优控制器.试验结果表明,该方法能够有效抑制由转向和路面不平引起的振动,在人体敏感频段的垂直和旋转方向振动的幅值明显降低,悬架动挠度有所下降.
Based on the active suspension dynamics in steering, a full-vehicle steering model was built. In order to improve the ride comfort and the stability of driving, the optimal control method of the full vehicle is studied in timedomain and frequency-domain. The H∞ optimal controller is designed and realized by TMS320F206 DSP. The experiment results show that this method can effectively reduce the vibrations of the vehicle body caused by steering and the road roughness. In the human sensitive frequency ranges, the amplitudes of vertical and rotational vibrations are considerably decreased, and the suspension deflections are restrained as well.
出处
《宁夏大学学报（自然科学版）》
CAS
北大核心
2007年第2期128-131,共4页
Journal of Ningxia University(Natural Science Edition)
基金
浙江省宁波市自然科学基金资助项目(2006A610029)
关键词
主动悬架
全车转向模型
频域加权
DSP
active suspension
full-vehicle steering model
frequency-domain weighted
DSP
