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Automobile bumper electromagnetic characteristic simulation analysis and evaluation method

A technology of automobile bumper and electromagnetic characteristics, applied in the direction of design optimization/simulation, special data processing applications, etc., can solve the problems of cumbersome testing, difficulty in obtaining the bumper structure, high cost, etc., and the process is simple and convenient, and it is convenient for design evaluation , low-cost effect

Active Publication Date: 2021-02-12
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology

Usually, a large number of repeated tests are required to obtain a bumper structure that meets the design requirements. Although this test evaluation method is relatively simple, it has defects such as high cost, cumbersome tests, and difficulty in obtaining an accurate bumper structure. Not suitable for large-scale promotional use

Method used

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  • Automobile bumper electromagnetic characteristic simulation analysis and evaluation method
  • Automobile bumper electromagnetic characteristic simulation analysis and evaluation method
  • Automobile bumper electromagnetic characteristic simulation analysis and evaluation method

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Embodiment Construction

[0024]The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025]Such asFigure 1~5As shown, follow the steps below:

[0026]Step 1: Analyze the appearance of the simulation object. In this embodiment, the bumper is analyzed, and the local structure of the bumper directly in front of the forward millimeter-wave radar is extracted and analyzed, which corresponds to the electromagnetic window of the millimeter-wave radar, and the millimeter-wave radar emits The electromagnetic wave irradiates the electromagnetic window, part passes through the electromagnetic window, part is reflected by the electromagnetic window, and part is absorbed by the electromagnetic window;

[0027]Such asfigure 1 As shown, the cross-sectional schematic diagram of the electromagnetic window part of the bumper of this embodiment, including the base material, primer, varnish and color paint from near to far away from the millimeter wave radar. In act...

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Abstract

The invention relates to the technical field of radar electromagnetic simulation, in particular to an automobile bumper electromagnetic characteristic simulation analysis and evaluation method. The method comprises the steps: performing structural analysis on a designed bumper, obtaining structural parameters and material parameters of an electromagnetic window corresponding to the millimeter-waveradar, inputting the material parameters into electromagnetic simulation software, setting simulation boundary conditions and excitation conditions to simulate an electromagnetic wave to irradiate the electromagnetic window, extracting simulation data, and evaluating the designed bumper according to the simulation data. The electromagnetic wave simulation experiment is carried out on the designedbumper in the simulation software, whether the bumper meets the requirement or not can be accurately evaluated without physical experiment operation, bumper design evaluation is facilitated to a great extent, the cost is low, and great popularization value is achieved.

Description

Technical field[0001]The invention relates to the technical field of radar electromagnetic simulation, in particular to a method for simulation analysis and evaluation of the electromagnetic characteristics of automobile bumpers.Background technique[0002]With the rapid development of autonomous driving technology, advanced driver assistance systems such as millimeter wave radar, cameras and lidar sensors that realize autonomous driving are also developing rapidly. At present, millimeter-wave radar sensors have become one of the mainstream sensors because of their moderate cost, strong environmental adaptability and good long-distance detection capabilities. The common installation method of millimeter wave radar sensor is to install it behind the bumper of the car that absorbs and relieves external impact and protects the front and rear of the body. The advantage of this installation is that the appearance of the vehicle will not be changed due to the introduction of radar sensors.[...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20Y02T90/00
Inventor 郭军朝屈新田夏云
Owner DONGFENG MOTOR CORP HUBEI
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