| With the growing integration of vehicle electronic equipment and the complexity of automobile electromagnetic enviroment,the Electromagnetic Compatibility(EMC)issue has become increasingly prominent,and turned into a technical barrier of the improvement of automobile electronic level.To solve this problem,the research of EMC test has got more and more attention.In this paper,the various test technology of EMI and EMS are analyzed,and the test system of the radiation susceptibility for mobile equipment is built.Firstly,the background and significance of this thesis is briefly introduced,and the current status of the automobile testing technology of electromagnetic emission(EMI)and electromagnetic susceptibility(EMS)are summaried.The related EMC the-ory,the definition of automobile EMC and the testing standards of automobile EMC is briefly introduced.The electromagnetic interference sources,the coupling path and senetive equipment is analyzed.Secondly,it has analyzed the basic principle of component level EMI test tech-nology,introduced the testing technology of electric-field emissions and conducted emissions;it has analyzed the basic principle of component level EMS test technology,introduced the testing technology of anechoic chamber radition immunity,the bulk current injection,conducted immunity and the electrostatic discharge.Thirdly,based on the standard specification of GMW 3097 and regulatory testing condition,the control module of has been tested by EMI and EMS.We has obtained the relevant test results,analyzed the existing problems and put forward the test scheme.It has offered a useful reference for the EMC design of automobile component level EMC.Finally,the radiation susceptibility test system has been constructed,and the pro-cess of constrction of hardware equipment and templated of EMC32 software has been introduced.The radiation characteristics of double flat dipole antenna has been ana-lyzed.The experimental results shows that the maximum field strength produced by the radiating antenna is close to 100V/m,meeting the actual radition of mobile equipment. |
PDF Full Text Request