Vehicle load measurement method based on acceleration sensor

Abstract

The invention discloses an accelerated speed sensor-based vehicle load capacity measuring method and belongs to the technical field of vehicle load capacity measuring. According to the accelerated speed sensor-based vehicle load capacity measuring method, a pair of accelerated speed sensors are fixed on two ends of a steel plate spring of a vehicle and are symmetric about a vehicle axle; as an absorbing spring, the steel plate spring is high in vibration reducing performance, force applied on the steel plate spring has a linear relation with shape change, and the shape change of a steel plate is caused by loads; conversely, the loads can be calculated via deflection of the steel plate; based on a fact that a left suspension rack and a right suspension rack of a high load axle have the same characteristics, all loads are weighted in calculation via axle load distribution factors of a front suspension rack and a rear suspension rack, and therefore actual vehicle load mass can of the whole vehicle can be calculated, load capacity of the vehicle can be measured indirectly, a measured transient value can be subjected to road surface gradient estimating operation and EMD filtering operation, and therefore a measured load capacity value of a high accuracy can be obtained. When the accuracy of the measured load capacity value of the vehicle is higher, more convenience for operation and management of a lorry can be realized.

Description

technical field [0001] The invention belongs to the technical field of vehicle measurement, and relates to a vehicle load measurement method, in particular to a vehicle load measurement method based on an acceleration sensor. Background technique [0002] At present, most of the vehicle traffic accidents and road and bridge damage accidents are caused by the problem of vehicle overloading. Therefore, for the field of trucks with a high accident rate, the weight detection of vehicle cargo is very important in the process of transporting goods. It is of vital significance to the safe transportation of trucks, the safety of roads and the operation and management of enterprises. Now, in order to control the overload problem, some vehicles are equipped with weight detection devices, and these devices simply measure the weight of the vehicle without considering the influence of the speed and acceleration of the vehicle on the measured weight value during driving, At the same time...

AI Technical Summary

Problems solved by technology

Now, in order to control the overload problem, some vehicles are equipped with weight detection devices, and these devices simply measure the weight of the vehicle without considering the influence of the speed and acceleration of the vehicle on the measured weight value during driving, At the same time, the influence of the flatness of the driving road on the measured vehicle weight value is ignored, which makes the final vehicle weight detection value less accurate and has certain errors, which reduces the application value of the overload detection device.

[0003] In addition, in addition to the problem of vehicle overloading, the loss and theft of goods during driving are also common problems in the transportation process. If the vehicle load cannot be detected in real time, these situations cannot be discovered in time, which will also make vehicle weight detection. The device loses its meaning

Images