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Method and system for quickly evaluating EMC test risk of whole vehicle

It is a fast and risky technology, which is applied in the direction of testing electrical devices in transportation, measuring interference from external sources, instruments, etc., and can solve the problems of high EMC test costs and few resources of the whole vehicle, so as to achieve the goal of not being restricted by the site, reducing costs, cost-free effect

Active Publication Date: 2020-05-29
HOZON NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The cost of EMC testing for the whole vehicle is high, and the resources are relatively scarce. Reserving third-party resources has now become a confusing problem for some OEMs

Method used

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  • Method and system for quickly evaluating EMC test risk of whole vehicle
  • Method and system for quickly evaluating EMC test risk of whole vehicle
  • Method and system for quickly evaluating EMC test risk of whole vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a method for quickly evaluating the EMC test risk of a vehicle, such as figure 1 shown, including steps:

[0036] S11. Receive the whole vehicle EMC test radiation disturbance data of the vehicle and the EMC radiation disturbance data of any electronic components in the vehicle;

[0037] S12. Screen out several first frequency point data according to the received vehicle EMC test radiation disturbance data of the vehicle; obtain the number of data in the EMC radiation disturbance data of any electronic component in the vehicle according to the several first frequency point data a number of second frequency point data; according to the obtained several first frequency point data and several second frequency point data, the first reference frequency point data of the current vehicle is obtained;

[0038] S13. Screen out several third frequency point data according to the received EMC radiation disturbance data of any electronic component in the v...

Embodiment 2

[0072] This embodiment provides a system for quickly assessing the risk of the vehicle EMC test, such as figure 2 shown, including:

[0073] The receiving module 11 is used to receive the vehicle EMC test radiation disturbance data of the vehicle and the EMC radiation disturbance data of any electronic components in the vehicle;

[0074] The first calculation module 12 is used to filter out several first frequency point data according to the received vehicle EMC test radiation disturbance data of the vehicle; obtain the EMC of any electronic component in the vehicle according to the several first frequency point data Several second frequency point data in the radiation disturbance data; calculate and obtain the first reference frequency point data of the current vehicle according to the obtained several first frequency point data and several second frequency point data;

[0075] The second calculation module 13 is used to filter out several third frequency point data accordi...

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Abstract

The invention discloses a method for quickly evaluating the EMC test risk of a whole vehicle. The method comprises the steps of receiving whole vehicle EMC test radiation disturbance data of the vehicle and EMC radiation disturbance data of any electronic part in the vehicle; selecting out first frequency point data according to the received whole vehicle EMC test radiation disturbance data; obtaining second frequency point data in the EMC radiation disturbance data of any electronic part according to the first frequency point data; calculating first reference frequency point data of the current vehicle according to the first frequency point data and the second frequency point data; selecting out third frequency point data according to the received EMC radiation disturbance data of any electronic part; obtaining fourth frequency point data in the whole vehicle EMC test radiation disturbance data according to the third frequency point data; calculating second reference frequency point data of the current vehicle according to the third frequency point data and the fourth frequency point data; and comparing the calculated first reference frequency point data and second reference frequency point data with a standard limit value to obtain a comparison result.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method and system for rapidly evaluating the EMC test risk of a complete vehicle. Background technique [0002] New energy electric vehicles do not have the same problems as conventional power vehicles, such as fuel economy and engine mechanical performance, and have the advantages of zero emissions, no air pollution, sustainable energy and some clean energy; therefore, research on new energy electric vehicles is now more and more attention. However, because the motor needs a large current to drive, when the motor's working state changes, there is a sharp current and voltage change in the system, so electromagnetic compatibility has become a core issue that affects the safety of electric vehicle electronic systems. [0003] EMC test, also known as Electromagnetic Compatibility (EMC), refers to the comprehensive evaluation of the electromagnetic field interference (EMI...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/001G01R31/006
Inventor 奚院生
Owner HOZON NEW ENERGY AUTOMOBILE CO LTD