参数估计在汽车动态称重中的应用

Application of Parameter Estimation in Weigh-in-Motion of Vehicles

本文主要介绍了参数估计法在车辆动态称重中的应用。在讨论动态称重模型的基础上,得出了汽车轴重表达式的参数形式,用递推最小二乘法进行参数估计,从而得出了汽车轴重的估计,最后利用采样数据进行了实验。结果表明,参数估计法是有效的,动态系数的偏差小于4.75%。

The application of parameter estimation in weigh-in-motion of vehicles is presented. On the basis of discussion of the models of weigh-in-motion, the parameter equation of axle weight is obtained. The estimations of parameters are calculated with the recursive least square method, thus the axle weight is estimated. Finally, the experiment is made with the sampling data. The result shows that the method of parameter estimation is effective and the deviation of dynamic coefficient is less than 475%.