Method and device for carrying out external radiation disturbance evaluation on vehicles

A radiation disturbance assessment, vehicle technology, applied in measuring devices, instruments, measuring electrical variables, etc., can solve the problems of high cost and high cost of vehicles

Active Publication Date: 2016-09-07
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the high cost of building electromagnetic anechoic chambers, most domestic vehicle companies do not have their own electromagnetic anechoic chambers, and they all conduct evaluations

Method used

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  • Method and device for carrying out external radiation disturbance evaluation on vehicles
  • Method and device for carrying out external radiation disturbance evaluation on vehicles
  • Method and device for carrying out external radiation disturbance evaluation on vehicles

Examples

Experimental program
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Effect test

Embodiment 1

[0070] An embodiment of the present invention provides a method for evaluating external radiation disturbances of vehicles, and the execution subject of the method may be any terminal or server with computing capabilities; see figure 1 , the method includes:

[0071] Step 101: When the vehicle to be detected is parked in an open field, set the antennas at multiple measurement points corresponding to the vehicle to be detected.

[0072] Step 102: Set the vehicle to be detected in a working mode in which the engine is turned off but the electrical appliances work, and the first radiation data of the antenna at each of the multiple measurement points are measured by a spectrum analyzer.

[0073] Step 103: Set the vehicle to be detected to the working mode of idling but the electrical appliances are turned off, and measure the second radiation data of the antenna at each measurement point through a spectrum analyzer.

[0074] Step 104: When the detected vehicle that has been dete...

Embodiment 2

[0079] An embodiment of the present invention provides a method for evaluating external radiation disturbances of vehicles, and the execution body of the method may be any terminal or server with evaluation capabilities; see diagram 2-1 , the method includes:

[0080] Step 201: When the vehicle to be detected is parked in an open field, set the antennas at multiple measurement points corresponding to the vehicle to be detected.

[0081] The open site is an open site with flat terrain, no high-power electromagnetic emission sources around, and a power supply that is convenient for the connection of the spectrum analyzer; the video bandwidth of the spectrum analyzer is at least 3 times the resolution bandwidth.

[0082] In this step, in order to improve the accuracy of evaluating the vehicle for external radiation disturbance, before this step, the vehicle to be detected is parked in the central position of the open field.

[0083] The plurality of measurement points may inclu...

Embodiment 3

[0164] An embodiment of the present invention provides a device for evaluating external radiation disturbance of vehicles, see image 3 , the device consists of:

[0165] Setting module 301, for when the vehicle to be detected is parked in an open field, the antenna is respectively arranged at a plurality of measurement points corresponding to the vehicle to be detected;

[0166] The first measurement module 302 is used to set the vehicle to be detected as a working mode in which the engine is turned off but the electrical appliances work, and the first radiation data of the antenna at each of the plurality of measurement points are respectively measured by a spectrum analyzer;

[0167] The second measurement module 303 is used to set the vehicle to be detected to the working mode of idling but the electrical appliances are turned off, and measure the second radiation data of the antenna at each measurement point through a spectrum analyzer;

[0168] The third measurement mod...

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PUM

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Abstract

The invention discloses a method and device for carrying out external radiation disturbance evaluation on vehicles and belongs to the automotive electronic electromagnetic compatibility technical field. The method includes the following steps that: a vehicle to be detected is set to a work mode according to which the vehicle to be detected is in a flameout state while electrical appliances work, first radiation data of antennas at each measurement point in a plurality of measurement points are measured through a spectrum analyzer; the vehicle to be detected is set to a work mode according to which the vehicle to be detected is in an idle state while the electrical appliances are switched off, and second radiation data of the antennas at each measurement point are measured through the spectrum analyzer; a detected vehicle is set to a work mode according to which the detected vehicle is in a flameout state while electrical appliances work, third radiation data of the antennas at each measurement point are measured through the spectrum analyzer; the detected vehicle is set to a work mode according to which the detected vehicle is in an idle state while the electrical appliances are turned off, and fourth third radiation data of the antennas at each measurement point are measured through the spectrum analyzer; and external radiation disturbance evaluation is performed on the vehicle to be detected according to the first radiation data, the second radiation data, the third radiation data and the fourth radiation data.

Description

technical field [0001] The invention relates to the technical field of electromagnetic compatibility of automobile electronics, in particular to a method and a device for evaluating external radiation disturbance of vehicles. Background technique [0002] With the wide application of electronic technology in automobiles, the problem of EMC (Electro Magnetic Compatibility, electronic electromagnetic compatibility) of automobiles has become increasingly prominent. During normal operation, automobiles will generate electric and magnetic field disturbances to the outside. However, when the electric and magnetic field disturbances are too large, they will It poses a threat to human health. Therefore, before the car leaves the factory, it is necessary to conduct an external radiation harassment assessment on the vehicle. [0003] At present, when the vehicle to be tested is evaluated for external radiation disturbance, the vehicle to be tested is parked in an electromagnetic wave ...

Claims

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Application Information

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IPC IPC(8): G01R29/08
CPCG01R29/0857
Inventor 奚院生范成慧吴凤英李张银
Owner CHERY AUTOMOBILE CO LTD
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