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Introduction of domestic and foreign automotive electromagnetic compatibility technical standards

in recent years, an increasing number of electronic products are widely used in automobiles, and automotive electronic technology is gradually formed. The application degree of automotive electronic technology has become an important symbol to improve the level of automotive technology. Various electronic and electrical products have accounted for 30% or more of the total cost of automobiles, and this trend is still developing. In this situation, an emerging technology - Automotive Electromagnetic compatibility technology is emerging

automotive electromagnetic compatibility technology involves the prevention and control of external radiation interference of the whole vehicle, the prevention and control technology of conduction, coupling and radiation interference in the vehicle, the anti-interference technology of automotive electronic components, the anti radiation interference technology of the whole vehicle, the mutual compatibility technology of various electronic and electrical components, the electromagnetic compatibility technology of the whole vehicle and the environment, and many other aspects

definition of automotive electromagnetic compatibility technology

definition of Automotive Electromagnetic Compatibility Technology: the ability of vehicles or parts or independent technical units to work satisfactorily in their electromagnetic environment without causing undue electromagnetic interference to anything in the environment. That is, in the car and its surrounding space, within a certain period of time (running time), under the conditions of available spectrum resources, the car itself and its surrounding electrical equipment can coexist without causing degradation

standardization of automotive electromagnetic compatibility technology at home and abroad

electromagnetic interference produced by electronic and electrical equipment on vehicles will adversely affect the normal operation of electronic control systems and other electronic products equipped on vehicles. Therefore, in order to ensure the normal and reliable operation of systems such as ABC, engine fuel electronic control and other electronic equipment, we must pay attention to the research and design of electromagnetic compatibility technology

countries with advanced automotive technology attach great importance to the research of automotive electromagnetic compatibility technology, and have formulated corresponding regulations and standards; Major automobile manufacturers invest in establishing corresponding automobile electromagnetic compatibility technology research centers to carry out testing and approval of their entire vehicles, inspect the mass production of automotive electronic parts, analyze the compensation for accidents, and analyze and describe the testing of the electromagnetic environment of the entire vehicle, so as to put forward the technical requirements for the electromagnetic compatibility design of the entire vehicle electrical system and automotive electronic products

the research on Automotive Electromagnetic Compatibility Technology in China started late, and the relevant standards are not perfect enough. Compared with advanced countries, the gap is still relatively large. At present, several major domestic automobile manufacturers with relatively strong strength have recognized the importance of electromagnetic compatibility technology and have carried out research in this regard

the main standards of relevant automotive EMC technologies at home and abroad are listed below. Table 1: relevant standards of domestic automotive electromagnetic compatibility technology

source: China Automotive Industry Yearbook, China standard service, ISTIS collection and sorting

Table 2: foreign standards related to automotive electromagnetic compatibility technology

Standard Association standard number standard name automotive electromagnetic compatibility international standard ISO 11451 road vehicles - Electrical disturbances by narrowband radiated electromagnetic energy - vehicle test methods ISO 11452 road vehicles - Electrical disturbances generated by narrowband radiated electromagnetic energy - component test methods ISO 7637 road vehicles - Electrical disturbances by conduction and coupling ISO tr 1o6o road vehicles - Electrical disturbances from electrostatic discharge CISPR 12 vehicles Vehicles, boats, and internal combustion engine driven devices radio disturbance characteristics limits and methods of measurement CISPR 25 is used to protect vehicles Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles, boats and on devices (the suppression of radio interference produced by dark ignition engines fitted to motor vehicles95/56/EC vehicle security systems 97/24/EC2/3 wheeled vehicles (such as high specific surface area, high conductivity, high thermal conductivity, high barrier, high thermal stability, high magnetism, high mechanical strength, good light transmittance) 2000/2/EC forest and agricultural tractors) (Forestry and agricultural trackers) ECE R10 uniform provisions on vehicle electromagnetic compatibility American Society of Automotive Engineering (SAE) electromagnetic compatibility standard SAE J is the limit value and test method of electromagnetic compatibility of vehicle devices. General (60Hz ~ 18GHz) SAE J is vehicle, Limits and methods of radio disturbance characteristics of motor boats and ignition engine driving devices (30MHz ~ 1GHz) SAE J narrow band measurement SAE J wide and narrow band measurement methods and limits of vehicles and devices (150kHz ~ io00mhz) limits and measurement methods of broadband magnetic field and electric field intensity of SAE J electric vehicles (9KHz ~ 30mh tension range of 300 Newton is enough; Z) SAE J electromagnetic immunity of the whole vehicle from external interference sources (100kHz ~ 18GHz) SAE J vehicle immunity measurement (1.8mhz-1.3ghz) SAE J large current injection (1 ~ 400MHz) SAE J reverberation room SAE J electrostatic discharge SAE J anti transient electromagnetic interference SAE J anti power line magnetic field interference (60Hz ~ 30kHz) SAE J measurement process and limit of electromagnetic sensitivity of automotive parts general (60Hz ~ 18GHz) SAE J conducted immunity measurement ~ wire method (30Hz ~ 250kHz) SAE J conducted immunity measurement ~ radio frequency (RF) power direct injection method (250kHz ~ 500KHz) SAE J radiated electromagnetic field immunity measurement - BCI method SAE J transient conducted immunity for power line SAE J electrical interference generated by conduction and coupling ~ coupling clamp method SAE J electrostatic discharge SAE J darkroom for electromagnetic immunity measurement (10kHz ~ 18GHz) SAE J immunity measurement of radiated magnetic field generated by power line (60Hz ~ 30kHz) SAE J radiated electromagnetic field immunity measurement - strip line method SAE J is radiated electromagnetic field immunity measurement - tem cell method (10kHz ~ 200MHz) SAE J radiated electromagnetic field immunity measurement - three-layer plate method (10kHz ~ 500MHz) SAE J AC power electric field immunity measurement (60Hz ~ 30kHz) SAE J radiated electromagnetic field immunity measurement - reverberation chamber method SAE J is used to protect the radio interference characteristics of in vehicle parts and components of on-board receivers. Measurement methods and limits SAE J electromagnetic sensitivity to transient conducted radiation International Electrotechnical Commission Standard IEC radiated (radio frequency) electromagnetic field immunity test American national standard ANSI 63.4 low voltage electronic and electrical equipment radio noise emission measurement method

source: "Safety and electromagnetic compatibility", ISTIS collects and sorts out the original texts of relevant standards. Please go to the patent standard science and technology report of Shanghai Library to inquire about the retrieval services of relevant patents, standards and science and technology reports for the reading room of the business negotiation


1 Electromagnetic compatibility, Xu Li, China Automotive Technology Research Center, China Automotive Industry Yearbook

2 Automobile electromagnetic compatibility standard, linyanping, safety and electromagnetic compatibility, 2002, issue 4

3 Development of Automotive Electromagnetic Compatibility Technology in China, Xu Li, safety and electromagnetic compatibility, 2003, issue 1

4 Analysis of electromagnetic compatibility of heavy-duty vehicles, EMC China electromagnetic compatibility:

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