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Tire side-tipping side-inclining steady-state aligning torque characteristic radius semi-empirical modeling method

A technology of aligning torque and modeling method, which is applied in special data processing applications, instruments, electrical and digital data processing, etc., and can solve the problems of unclear physical meaning of model parameters and low model prediction ability.

Inactive Publication Date: 2015-04-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above tire models either use simplified theoretical expressions or pure empirical formulas when expressing the characteristics of tire roll and side yaw straightening moment, which leads to problems such as unclear physical meaning of model parameters and low predictive ability of the model.

Method used

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  • Tire side-tipping side-inclining steady-state aligning torque characteristic radius semi-empirical modeling method
  • Tire side-tipping side-inclining steady-state aligning torque characteristic radius semi-empirical modeling method
  • Tire side-tipping side-inclining steady-state aligning torque characteristic radius semi-empirical modeling method

Examples

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Embodiment Construction

[0097] The present invention will be further described below in conjunction with the accompanying drawings. The tires used in the verification of this method are GeneralP215 / 70R16 99S tires with a tire pressure of 262kPa. figure 1 The tire mechanical characteristics test bench test shown in the table obtained the test data under the tire roll and yaw conditions, and used the invented semi-empirical modeling method for the tire roll and yaw steady-state return moment characteristics, and adopted the curve fitting technology to identify the tire The parameters of the model. Specific steps are as follows:

[0098] Step 1: Install General P215 / 70R16 99S tires on such as figure 1 On the tire mechanical characteristic test bench shown in Table 1, complete the steady-state mechanical characteristic test under the tire roll and yaw condition according to the test requirements shown in Table 1, and record the test data. The test data include tire roll angle, side slip angle, vertical...

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Abstract

The invention belongs to the technical field of tire dynamics and discloses a tire side-tipping side-inclining steady-state aligning torque characteristic radius semi-empirical modeling method. The method comprises decomposing aligning torque in the condition of non-linear stacking of the tire side-tipping side-inclining into side-inclining side force aligning torque, side-tipping side force aligning torque and side-tipping longitudinal force aligning torque, and tire side-tipping side-inclining steady-state aligning torque test data are obtained by testing through a tire mechanical characteristic test table, and parameters of the built tire model are obtained by identification through a curve fitting technology. The model has the advantages of being high in accuracy, clear in parameter physical meaning, capable of meeting theoretical boundary conditions and high in predictive capacity and can be used for high-accuracy car dynamic simulation.

Description

technical field [0001] The invention belongs to the technical field of tire dynamics, and in particular relates to a semi-empirical modeling method for tire roll and side yaw steady-state righting moment characteristics. The tire roll and side deflection test data obtained through the tire mechanical characteristic test bench test adopts curve fitting The technology identifies the parameters of the tire model, and obtains the tire roll and side yaw steady-state righting moment model, which is used for vehicle dynamics simulation. Background technique [0002] Tires are an important part of the car, and the force between the vehicle and the ground is transmitted through the tires. The mechanical characteristics of tires are the basis of automobile performance analysis and design, and have an important impact on automobile safety, operating stability, ride comfort and other performances. [0003] The tire model is to establish the relationship between the tire motion paramete...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 卢荡张海涛刘兵
Owner JILIN UNIV
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