Abstract
Axle weighing system measures axle weights of in-motion vehicles. Mass estimation methods have been studied for estimating axle weights by processing the weight signal to improve the accuracy of measured axle weights. The method has been applied to in-motion vehicles at the velocity of less than 15 km/h and axle weights have been obtained in high accuracy. However, the examination of the accuracy of estimated axle weights of in-motion vehicles with higher velocity has not yet completed. To examine and improve the accuracy of the estimated axle weight, miniature models have been developed. Through the experiments using these miniature models, motion data of vehicle body and weight signals have been obtained when the miniature instrumented vehicle passes on the weighbridge in various situations. Also, we have tried to apply the estimation method to the obtained weight signals. In this paper, we describe the basic idea of the method we have proposed, the development of the miniature models and the results of applying the estimation method.
