Vehicle-ground interaction dynamic simulation system

A dynamic simulation and vehicle technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of few types of tire and soil models, cumbersome data output, and no user graphical interface, so as to shorten the development time. effect of cycles

Inactive Publication Date: 2010-07-07
王萌
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] To sum up, although a variety of vehicle ride comfort analysis software has been developed at home and abroad, there are still the following deficiencies: firstly, there are fewer types of tire and soil models, which cannot meet the

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  • Vehicle-ground interaction dynamic simulation system
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[0022] In the following, a detailed description will be given with reference to the accompanying drawings and a specific simulation case in order to have a deeper understanding of the purpose and technical solutions of the present invention.

[0023] The specific implementation steps are described as follows:

[0024] The first step is to determine the performance parameters of the simulated vehicle, and establish a variety of theoretical models of the interaction between tires and the ground based on the type of tires used by the vehicle and the working environment of the vehicle. Models include a vehicle model with rigid tires and a vehicle model with elastic tires. The former is used when the ground stiffness is much greater than the tire stiffness, and the latter is used when the ground and tires are simultaneously deformed.

[0025] Vehicle model with rigid tires (roller model): When the vehicle is running on the ground, the geometric relationship between the rigid wheel and the...

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Abstract

The invention relates to a vehicle-ground interaction dynamic simulation system, which can effectively predict the comfort of a driver and the crew in the running process of a vehicle on a computer provided with MATLAB software and belongs to the technical field of the smoothness of vehicles. The invention firstly determines a proper vehicle working environment and a theoretical model, also determines the generation mode and the generation type of a road surface spectrum, then constructs a user figure interface and realizes the functions of parameter input and result output. The invention carries out simulation on any one computer installed with an edition above MATLAB 6.5 and does not need any other setting. Meanwhile, the invention can play an important role in vehicle research and development stages, can guide the development of a novel vehicle and the improvement of a traditional vehicle, shortens the development cycle of the vehicle and creates a value for an enterprise.

Description

technical field [0001] The invention relates to a vehicle-ground interaction dynamics simulation system, which can effectively predict the comfort of drivers and passengers during vehicle running on a computer installed with MATLAB software, and belongs to the technical field of vehicle ride comfort. Background technique [0002] With the continuous advancement of technology and the improvement of living standards, people's requirements for vehicle performance are also getting higher and higher. A car with superior performance not only emphasizes power and safety, but also emphasizes comfort. Ensuring vehicle performance while improving the comfort of drivers and passengers is an important task in the vehicle research and development process. [0003] Currently, the more popular vehicle ride comfort research tools are the multibody dynamics analysis software ADAMS and the vehicle dynamics software VEDYNA. However, when the above software is used, the modeling cycle is long...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 王萌孙蓓蓓张晓阳
Owner 王萌
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