Self-weighing device of air suspension truck and method thereof

Abstract

The invention discloses a self-weighing device of an air suspension truck and a method thereof. The method comprises the following steps: collecting inner air pressure of air springs via a pressure sensor, converting the inner air pressure into analogue electrical signals, transmitting the analogue electrical signals to an analogue-to-digital converter connected with the pressure sensor, then carrying out data processing on digital signals subjected to analogue-to-digital conversion via an electronic control unit ECU, calculating corresponding vertical load applied to each group of air springs, carrying out summation calculation on the data so as to obtain sprung mass, and primarily calculating to obtain the total mass of the truck because unsprung mass is a constant value. In view of the system errors, compared with a fixed on-ground weigher, correction factors are introduced into the algorithm, so that the more accurate total mass can be obtained; a driver can more conveniently obtain the total weight of the truck in real time; the occurrence of overweight phenomenon is effectively controlled.

Description

technical field [0001] The invention belongs to the field of vehicle mechanics and electronics, and in particular relates to a self-weighing device and method for an air suspension truck. Background technique [0002] In order to ensure the driving safety of trucks, maintain roads, and avoid overloading tickets, the method of weighing trucks has become a hot research topic in the industry. At present, the commonly used truck weighing methods in the industry mainly include portable dynamic weighing method and strain type dynamic weighing method. The portable dynamic weighing method is easy to install, easy to carry and flow, but the weighing accuracy is low. The strain-type dynamic weighing method has a simple structure and high weighing accuracy, but it is greatly affected by the speed of the vehicle. Generally, it is strictly required that the speed of the vehicle passing the weighing platform must be lower than 10km / h. These two weighing methods are all in a fixed place,...

AI Technical Summary

Problems solved by technology

The portable dynamic weighing method is easy to install, easy to carry and flow, but the weighing accuracy is low

The strain-type dynamic weighing method has a simple structure and high weighing accuracy, but it is greatly affected by the speed of the vehicle. Generally, it is strictly required that the speed of the vehicle passing the weighing platform must be lower than 10km / h

Both of these weighing methods are in a fixed location, occupying dozens of square meters, and require a dedicated scaler, which is not only inefficient, but also very expensive, time-consuming and labor-intensive.

Images