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Apparatus and method for testing automobile electromagnetic sensitivity

An electromagnetic sensitivity, automotive technology, applied in the measurement of electricity, vehicle testing, electromagnetic field characteristics, etc., can solve problems such as low efficiency and errors, and achieve the effect of reducing the possibility of errors, reducing labor intensity, and protecting power amplifiers

Active Publication Date: 2008-06-04
BYD CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to the need to perform multiple repeated operations on one or more instruments according to the operating procedures of the test, sometimes it is necessary to record the experimental data of multiple instruments, which is undoubtedly very heavy work for the experimenters, and the efficiency is low. there is a possibility of error

Method used

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  • Apparatus and method for testing automobile electromagnetic sensitivity
  • Apparatus and method for testing automobile electromagnetic sensitivity

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with two preferred embodiments of the large current injection test and the free field test and the accompanying drawings:

[0028] a) Bulk current injection (BCI) test

[0029] The high current injection test is mainly used to detect the sensitivity of the product under test to the induced current effect when it is in use. The components include control unit, GPIB card, signal generator, power amplifier, power meter, current injection probe, current monitoring probe, power supply and artificial power network, etc. Among them, the control unit, GPIB card, signal generator, power amplifier, and power meter are placed in the control room, and the current injection probe, current monitoring probe, power supply and artificial power network, and the product under test are placed on the ground plane of the shielding room. Its principle diagram see figure 1 .

[0030] There is at least one PCI slo...

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Abstract

The invention discloses an apparatus for detecting the electromagnetic sensitivity of an automobile. For a heavy current injection detection, the invention comprises a power supply, an artificial power supply network, a current injection probe, a current monitor probe, a control unit, an interface card, a signal generator, a power amplifier, a first power unit and other units; for a freefield detection, the invention comprises the power supply, the artificial power supply network, a radio frequency emission antenna, a field intensity probe, the control unit, the interface card, the signal generator, the power amplifier, a field intensity monitor and other units. The invention can be adopted to achieve the heavy current injection automatic detection and the freefield automatic detection for automobile electronic products with high detection efficiency, can effectively reduce the labor intensity of detecting staffs, and reduce the possibility of detection errors.

Description

technical field [0001] The invention relates to an electromagnetic compatibility automatic testing device and method, which are used for testing the electromagnetic susceptibility of automotive electronic products, especially for large current injection testing and free field testing of automotive electronic products. Background technique [0002] All automotive electronic products need to undergo electromagnetic compatibility tests, including electromagnetic susceptibility tests, to verify whether automotive electronic products can work normally under the action of electromagnetic interference. Electromagnetic susceptibility reflects the ability of the tested product to resist interference. [0003] The test of automobile electromagnetic susceptibility was mainly carried out by manually operating the test instrument in the past. Due to the need to perform multiple repeated operations on one or more instruments according to the operating procedures of the test, sometimes it...

Claims

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Application Information

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IPC IPC(8): G01R29/08G01R31/00G01M17/007
Inventor 周宇奎毛重阳龙光展
Owner BYD CO LTD
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