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

A vehicle quality and dynamic estimation technology, applied in the field of on-board estimation, can solve problems such as model estimation errors, engineering difficulties, algorithm real vehicle road tests, etc., to achieve the effect of easy engineering use, convenient operation, and reduced errors

Inactive Publication Date: 2021-02-23
RES INST OF HIGHWAY MINIST OF TRANSPORT
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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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  • Tank truck whole vehicle mass dynamic estimation method based on plate spring deformation
  • Tank truck whole vehicle mass dynamic estimation method based on plate spring deformation
  • Tank truck whole vehicle mass dynamic estimation method based on plate spring deformation

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[0031] The present invention will be described in detail below in conjunction with accompanying drawings and embodiments, but those skilled in the art should know that the following embodiments are not the only limitation to the technical solution of the present invention, and any work done under the spirit of the technical solution of the present invention Equivalent transformation or modification shall be considered as belonging to the protection scope of the present invention.

[0032] The overall implementation process of the tank car vehicle quality dynamic estimation method of the present invention, such as figure 1 As shown, the specific steps include the following:

[0033] Step 1: Determine the parameters and acquisition methods used for vehicle quality estimation

[0034] The mass distribution of the tanker vehicle acts on each wheel, and the vehicle mass can be estimated indirectly through the vertical load on the wheels. However, it is difficult to measure the loa...

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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 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/13
CPCB60W40/13
Inventor 周炜韦坤李文亮张学文
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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