Tank truck whole vehicle mass dynamic estimation method based on plate spring deformation

Abstract

The invention provides a tank truck whole vehicle mass dynamic estimation method based on plate spring deformation. The method comprises the following steps: defining parameters for estimating the whole vehicle mass and an acquisition mode thereof, designing a typical driving scene of a tank truck, carrying out a real car test to obtain sample information, fitting a function expression of resistance of a resistance strain gauge and the whole vehicle mass by using an LS-SVM (Least Square Support Vector Machine), and finally, realizing dynamic estimation of the tank truck whole vehicle mass based on the fitted function expression. The method utilizes the resistance induction plate spring deformation to estimate the tank truck whole vehicle mass, and is convenient to operate and convenient for engineering use. Meanwhile, the influence of the mass center position of the tank car is reflected through different deformation degrees of the plate springs on the two sides, and errors caused by shaking to whole vehicle mass estimation are reduced.

Description

technical field [0001] The invention relates to a method for dynamically estimating the mass of a tank car, in particular to a method for dynamically estimating the mass of a tank car based on deformation of a leaf spring, which belongs to the technical field of vehicle-mounted estimation. Background technique [0002] In recent years, due to the large loading capacity and high transportation efficiency, tankers have been used more and more. People's demand for tankers is no longer simply limited to the category of transportation tools, but the pursuit of operating efficiency, driving stability and active safety. Higher and higher, so driving assistance electronic systems are widely used in tankers, such as anti-lock braking system (ABS), electronic stability system (ESP) and so on. Most of these electronic systems work according to the driving state parameters of the tanker, among which the vehicle quality is a key parameter. However, the volume of the tanker is large, and ...

AI Technical Summary

Problems solved by technology

However, the established dynamic model is complex and difficult to engineer, and most of the methods verify the effectiveness of the algorithm through multi-dimensional simulation tests, and the algorithm has not been tested on the real vehicle road; and, when estimating the mass of the tank car, due to the Due to the influence of liquid disturbance, the movement of the center of mass of the tank car is variable, which brings certain errors to the model estimation

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