Electromagnetic compatibility immunity test system used for key-free system

A test system and anti-interference test technology, applied in the automotive field, can solve problems affecting test results, broadband noise and harmonic noise of the keyless system, and performance judgment of the keyless system, so as to achieve accurate test results and improve accuracy Effect

Active Publication Date: 2014-04-23
ZHEJIANG GEELY HLDG GRP CO LTD +1
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition to the interfering test signal, the antenna and probe used for testing may also generate broadband noise and harmonic noise that affect the normal operation of th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electromagnetic compatibility immunity test system used for key-free system
  • Electromagnetic compatibility immunity test system used for key-free system
  • Electromagnetic compatibility immunity test system used for key-free system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] figure 1 It is a structural schematic diagram of an EMC immunity test system for a keyless system according to an embodiment of the present invention.

[0062] The testing system of the present invention may include a control room (not shown) and an anechoic room which are arranged separately. Usually, the electronic control unit to be tested is set in an anechoic chamber. In the embodiment of the present invention, the electronic control unit to be tested is the keyless system of the vehicle, which is also called the keyless system 3 to be tested in the present invention.

[0063] The EMC immunity test system of the present invention may also include a key signal transmitting device 5 . The key signal transmitting device 5 includes a key signal transmitting antenna 501 arranged in the anechoic chamber 4 , and transmits a key signal to the keyless system 3 to be tested arranged in the anechoic chamber 4 through the key signal transmitting antenna 501 . And, when the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an electromagnetic compatibility immunity test system used for a key-free system. The system comprises a key signal transmitting device whose key signal transmitting antenna is arranged inside an anechoic chamber, so as to transmit a key signal to a key-free system to be tested which is arranged inside the anechoic chamber, and operation is carried out according to the key signal when the key signal received by the key-free system to be tested is a required working signal. In addition, the test system in the invention also comprises an anti-interference test system whose test signal transmitting antenna is arranged inside an anechoic chamber, so as to transmit test signals that interfere with work of the key-free system to be tested inside the anechoic chamber, and a test signal band elimination filter is arranged in the anti-interference test system and used for filtering from the test signals those within a band elimination frequency band corresponding to the frequency of a working signal, so as to eliminate influence of the test signals on the key signal, thereby enabling a test result to be relatively accurate.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an electromagnetic compatibility immunity test system for a keyless system. Background technique [0002] As more and more electronic control units are used in vehicles, the electromagnetic environment in which vehicles are located is also becoming more and more complex. Therefore, in order to avoid the failure of the electronic control unit on the vehicle caused by electromagnetic interference and threaten the life safety of users, the vehicle needs to do a specific Electro Magnetic Compatibility (EMC) for the anti-electromagnetic interference ability of each electronic control unit before leaving the factory. test. [0003] At present, the traditional electromagnetic compatibility test system is mainly for testing wired electronic control unit equipment. Such a test system cannot meet the test requirements of many vehicle wireless control units, especially keyless systems....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/00G05B23/02
Inventor 胡鹏博路影陈文强潘之杰吴成明冯擎峰
Owner ZHEJIANG GEELY HLDG GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap