汽车电子系统电磁兼容设计.docVIP

摘 要 随着汽车工业和电子技术的迅速发展，越来越多的新技术在汽车上得到了应用，尤其是微电子技术，更加有力的促进了汽车工业向高附加值的方向发展。而这些新技术的应用，也对整个汽车系统的可靠性提出了更高的要求，即各个电子装置和电子控制系统必须互相适应，汽车应用电子产品也就涉及到了一个共性的问题——汽车的电磁兼容性。 电磁兼容性(electromagnetic compatibility，EMC)是指电子电器或设备在工作环境中能够正常的工作，并且不产生影响其他设备的电磁干扰。目前，汽车电子技术已广泛应用于汽车的发动机控制、底盘控制、车身控制等各个方面。汽车电子化程度还在逐年增加，随之而来的汽车电子系统电磁兼容性问题日益显著。在促进汽车电子化的同时解决电子系统的兼容性问题，有助于提高汽车可靠性、安全性、舒适性．因此，如何解决汽车电子系统的电磁兼容问题，提高汽车的可靠性和安全性，已经成为一个重要和迫切的研究问题。 论文介绍了汽车电子系统电磁兼容的设计。首先讲述了汽车电磁兼容性的研究意义和就国内外汽车电子系统电磁兼容现状及发展趋势进行了简单概括。接着分析了汽车电子系统电磁干扰三要素，对电磁干扰的来源，汽车电磁干扰传播途径，电磁干扰敏感器进行了简单介绍。然后分析了在汽车电子系统电磁兼容设计中的主要问题。针对上述问题提出了有关汽车电子系统电磁兼容设计的方法。再接下来介绍了汽车电子系统电磁兼容的标准分析。最后，根据以上内容重点进行了汽车电子系统电磁兼容的设计。 关键词：电磁干扰；电子系统；电磁兼容；设计；标准 ABSTRACT The auto industry and the rapid development of electronic technology, more and more new technology has been applied in the bus, especially microelectronics technology, more powerful promoted the auto industry to high value-added direction. And these new technology applications, but also to the whole car system reliability put forward higher request, namely every electronic device and electronic control system must mutually adapt, automobile application of electronic products also involves a common problem - car the electromagnetic compatibility. The electromagnetic compatibility (EMC) electromagnetic compatibility, refers to the electronic appliances or equipment in the work environment to normal work, and did not affect the electromagnetic interference of other equipment. At present, the automobile electronic technology has been widely used in automobile engine control, chassis control, carbody control, etc. Automobile electronic degree increase year by year, subsequent automotive electronic system emc problem increasingly significant. In promoting car electronic simultaneously solve the electrical system compatibility problems, help to improve reliability, safety, comfort car. Therefore, how to solve the automobile electronic system emc, improve the reliability of the automobile and security, has