In the rapid development of automobile industry and car market under intense competition, contributed greatly to the various electrical, electronic and information equipment widely used in automotive, for today's auto industry, the degree of applied electronic technology has become one of the important symbol of improving car technology. With the increasing number and variety of Automotive electrical equipment, frequency of continuous improvement, the increasingly complex electromagnetic environment in the car, car electronic equipment and devices, especially semiconductor logic devices are sensitive to electromagnetic interference, mutual interference of electronic equipment often the car interior. When electromagnetic interference occurred, ranging from lead to downgrades in disturbed function of sensitive electronic equipment, leading to its failure, serious implications for the safe driving of the car.
The development of automotive electronics industry
For nearly 5 years, China's auto electronic industry to maintain a high growth rate, by 2010, the industry break through the 200 billion. All this thanks to the prosperity of China's auto industry as a whole. Consumer demand for automotive safety, comfort and entertainment to improve domestic advances in electronic information technology, many internationally renowned automotive manufacturers also put a lot of effort to develop the Chinese market. Future car electronic Hou market also will quickly development, national car electronic manufacturers to caught this a development opportunities, implementation brand strategy; intelligent of, and digital and bus of is products development direction; security, and energy-saving, and comfortable and entertainment is future car electronic application of theme; car electronic technology and aviation, and railway electronic technology will further interactive; levels Government will increased on car electronic industry chain of support efforts, promoted has new energy car development, car countryside policy will further implementation.
EMC problems of automotive electronics
With auto electronic products using the increase in the number, frequency, and power to make the car work environment filled with electromagnetic waves, electromagnetic interference problems will become increasingly prominent, ranging from affecting the normal operation of electronic products, heavy damage important components, resulting in vehicle accidents. Electromagnetic compatibility is seen not to feel, what it will cause vehicle impact?, for example.
Put the phone in front of a moving car dashboards, when the cell phone call, dual lamp suddenly lit up. This is because phone signal to electromagnetic waves form radiation interference headlights control system, caused double flash lamp switch exception; a sound mine ring, car of anti-theft system suddenly started, Haw ring, this is car anti-instant State interference capacity insufficient of performance; a car automatically driving of car, if by outside of interference, on May will runaway; owners since purchased a audio to modified has car within existing audio system Hou, whenever open double flash lamp Shi, modified Hou of speaker always issued has law of noise, this is because modified of audio system anti-interference capacity insufficient, Double Flash of electromagnetic radiation interference to refit in open sound; there are more serious disruption, a moving vehicle after the radio station, suddenly died, lost power; when in a moving vehicle passing by radar stations, air bags suddenly opened, these are the vehicle itself EMC problems caused by a lack of resistance to external electromagnetic radiation. Therefore, along with the automobile intelligent and networked in the future, electronic technology is used more and more in the vehicle, also faces more severe electromagnetic compatibility (EMC) the challenges and implications.
How to improve automotive electromagnetic compatibility technology
According to the life cycle of product development, complete automotive electromagnetic compatibility system can be summarized as → test → design → simulation reform 4 steps. Car good behavior from good system design of electromagnetic compatibility, electromagnetic compatibility problem for the earlier, more measures you can take to solve problems, and corresponding costs are also lower. Electromagnetic compatibility design of the car, first depending on vehicle safety, performance, functionality, target market and regulatory requirements proposed vehicle electromagnetic compatibility indicators, systems and components and, secondly, to develop electromagnetic compatibility control plan and test plan, and then also according to experience, systems and vehicle electrical architecture design level of claims.
OEMs choose EMC test verification of automotive electronics, balancing the electromagnetic compatibility of the vehicle and automotive electronics, function and improve vehicle safety; automotive electronics plant to fully understand the vehicle in advance the specific model of the electromagnetic compatibility requirements, and design and production of products with high compatibility. Vehicle and car electronics factory can be detected by third-party agencies, such as holding technical assistance testing automotive electromagnetic compatibility, reduce costs and risks. Facing the ailing Chinese stock market start ups
Shenzhen City game Sheng technology limited as domestic EMC technology of lead who, game Sheng technology service of industry involved communications, and computer/server, and medical, and military products, and car electronic, and appliances, and industrial control, and digital consumption, field, Professional provides products of EMC, and anti-mine, aspects of technology design, and problem rectification, and products certification, for Enterprise provides EMC technical advice, and internal training, and EMC test certification and enterprise development EMC design process construction, service.
EMC standards of China's independent brand car companies are not perfect, most refer to the standard car companies in Europe and America. The general trend is that as more and more electronic, automotive intelligence and networking, automotive EMC issues will be more and more, EMC requirements will become more comprehensive and more stringent.
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