汽车侧向加速度软测量方法研究  

Research on Soft Measurement Method of Vehicle Lateral Acceleration

作　　者：白海英[1] 王秀英[1] 张云辉[1] 

机构地区：[1]吉林大学

出　　处：《汽车技术》2011年第10期42-45,共4页Automobile Technology

基　　金：国家自然科学基金项目(项目号:50775096)

摘　　要：针对实车侧向加速度难以测量的问题,以车辆2自由度动力学模型为基础,构建了基于自适应卡尔曼滤波器的侧向加速度软测量方法。通过仿真试验表明,软测量得到的侧向加速度与车辆的实际侧向加速度基本一致,该软测量方法能够在车辆行驶的全工况(涵盖线性区和非线性区)下对侧向加速度进行准确估计。The measurement of vehicle lateral acceleration is a problem which is difficult to solve,so the authors establish a lateral acceleration soft measurement method based on adaptive Kalman filter with a dynamic model with 2 degree-of-freedom.The results show that the lateral acceleration obtained with soft measurement is roughly identical with vehicle real lateral acceleration,this soft measurement method can be used to accurately estimate lateral acceleration in all driving conditions（covering linear area and non-linear area）.

关 键 词：侧向加速度 软测量方法 自适应卡尔曼滤波 

分 类 号：U463.834[机械工程—车辆工程]