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Electromagnetic compatibility (EMC) testing method of new-energy electric automobile

A test method and electric vehicle technology, which is applied in vehicle testing, machine/structural component testing, electromagnetic field characteristics, etc., can solve problems such as inability to accurately measure electromagnetic disturbances, and achieve the effect of shortening the development cycle

Inactive Publication Date: 2019-03-19
SUZHOU APP SCI ACAD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it impossible to accurately measure electromagnetic disturbances during its normal operation

Method used

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  • Electromagnetic compatibility (EMC) testing method of new-energy electric automobile
  • Electromagnetic compatibility (EMC) testing method of new-energy electric automobile
  • Electromagnetic compatibility (EMC) testing method of new-energy electric automobile

Examples

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no. 1 example

[0018] The first embodiment: the frequency range is 0.15MHz~30MHz radiation disturbance test method, wherein,

[0019] Test site: meet the requirements of the semi-anechoic chamber in GB14023

[0020] Detection method: peak detection

[0021] Pre-test minimum scan time 9kHz ~ 150kHz 100ms / kHz;

[0022] Measurement Antenna: For electric field measurement, a 1m vertical monopole with antenna matching unit is used For magnetic field measurement, a 60cm electrostatically shielded loop antenna is used

[0023] Measurement method: The vehicle is run on a loaded chassis dynamometer at a constant speed of 64km / h on the wheel drum of the chassis dynamometer, or in other words, the electric drive vehicle is set on the chassis dynamometer at a speed of 64km / h or Run the electric drive vehicle under load at other predetermined speeds on a chassis dynamometer to simulate road conditions. If this speed cannot be reached, operate at the highest speed. Turn on all electronic and electrica...

no. 2 example

[0031] The second embodiment: a radiation disturbance test method with a frequency range of 30 MHz to 1000 MHz, wherein,

[0032] Test site: meet the requirements of the semi-anechoic chamber in GB14023

[0033] Measurement method: The vehicle is run on the wheel drum at a constant speed of 40km / h on the loaded chassis dynamometer, or in other words, the electric drive vehicle is set on the chassis dynamometer at a speed of 40km / h or other predetermined speeds. The chassis dynamometer simulates road conditions to run the electric drive vehicle under load. Turn on all electronic and electrical equipment in the car, such as radio, navigator, Bluetooth hands-free, air conditioner, high and low beams, wiper, left turn signal, etc. If this speed cannot be reached, operate at the highest speed.

[0034] Such as image 3 As shown, the distance d3 between the antenna 3 and the nearest part of the vehicle 100 is 10m, and the height of the center of the antenna 3 from the ground or f...

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Abstract

The invention provides an electromagnetic compatibility (EMC) testing method of a new-energy electric automobile. Due to the fact that electromagnetic disturbance of the new-energy electric automobileis different from common internal combustion engine automobiles, the new-energy electric automobile has stronger electromagnetic disturbance characteristics according to its working principle, and large-scale electronic system application produces higher anti-electromagnetic interference. The new-energy electric automobile is arranged on a loaded chassis dynamometer to operate on the chassis dynamometer at a specific speed, so that chassis dynamometer achieves energy absorption, the electromagnetic compatibility characteristic of one automobile in an operating state is evaluated from the viewpoint of electromagnetic disturbance of the automobile, and accordingly the electromagnetic disturbance of the automobile during normal operation can be accurately measured.

Description

technical field [0001] The invention relates to an automobile performance testing method, in particular to an automobile electromagnetic compatibility testing method. Background technique [0002] As a new energy vehicle, an electric drive vehicle no longer simply uses an engine as a power source, but instead uses various batteries including fuel cells as a driving energy source. A fuel cell generates electricity by means of an electrochemical process, which powers the vehicle's drive system and all other electronic devices. In addition to the same electronic and electrical equipment as the current conventional fuel vehicles, various batteries including fuel cells and their controllers, drive motors and their controllers have been added. A large number of high-power power electronic devices are used in these two systems, and their electromagnetic compatibility issues are particularly important. [0003] Most of the EMC test methods for automobiles in various standards and ...

Claims

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Application Information

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IPC IPC(8): G01R29/08G01M17/007
CPCG01M17/007G01R29/0821G01R29/0871
Inventor 胡德霖丁卫营李杰杨支峰陈仁治
Owner SUZHOU APP SCI ACAD CO LTD
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