基于动力学模型与改进GA算法的车辆主动悬架控制方法研究  

Vehicle Active Suspension Control Method Based on Dynamic Model and Improved GA Algorithm

作　　者：韩乐 HAN Le(Xianyang Vocational Technical College,Xianyang Shaanxi 712000,China)

机构地区：[1]咸阳职业技术学院,陕西咸阳712000

出　　处：《自动化与仪器仪表》2024年第5期110-114,共5页Automation & Instrumentation

基　　金：咸阳职业技术学院科研基金资助项目(2022KJB04)。

摘　　要：针对传统悬架系统缺乏对复杂动态环境的适应性问题,研究首先设计了悬架系统的动力学模型和路面模型,然后在GA算法中引入迁移和全局搜索策略,最后根据动力学模型和改进GA算法设计出了一种主动悬架控制方法。仿真结果显示,该方法俯仰角加速度以及倾侧角加速度的均方根与被动悬挂系统相比分别降低了26.9%、21.3%,与自扰抗悬挂控制系统相比分别降低了20.8%、27.0%。该方法的质心位移等三种性能指标均方根分别比被动悬挂系统降低40.6%、41.4%、42.9%。证明了设计方法应用于车辆时,车辆的平顺性与稳定性较好,为车辆悬架控制技术的发展和应用提供了有力支撑。In response to the lack of adaptability to complex dynamic environments in traditional suspension systems,the study first designed a dynamic model and road surface model of the suspension system.Then,migration and global search strategies were introduced into the GA algorithm.Finally,an active suspension control method was designed based on the dynamic model and improved GA algorithm.The simulation results show that the root mean square of pitch angle acceleration and pitch angle acceleration of this method are reduced by 26.9%and 21.3%respectively compared to passive suspension systems,and by 20.8%and 27.0%respectively compared to self disturbance anti suspension control systems.The root mean square of the three performance indicators such as centroid displacement of this method are 40.6%,41.4%,and 42.9%lower than those of the passive suspension system,respectively.It has been proven that when the design method is applied to vehicles,the smoothness and stability of the vehicle are good,providing strong support for the development and application of vehicle suspension control technology.

关 键 词：动力学模型 路面模型 改进GA算法 主动悬架控制 

分 类 号：U463.33[机械工程—车辆工程] TP273[交通运输工程—载运工具运用工程]