随着环保标准的日趋严格以及人们对汽车本身的经济安全性要求的逐步提高,汽车技术的发展与现代电子技术的组合变得愈来愈紧密,尤其是近十年来,车用电子技术的发展及应用称得上是日新月异。其中最具代表性的部分有车载诊断系统(ODBⅡ),电控模块(ECM)、电子燃油喷射系统(EFI)、废气再循环(EGR)、燃油蒸发再循环(EVAP)及三元催化转化器(CAT)的 With the increasingly stringent environmental standards and the gradual improvement of people’s economic security requirements of the automobile itself, the combination of the development of automobile technology and the modern electronic technology has become more and more closely. Especially in the recent decade, the development of automotive electronics technology And the application is called to change with each passing day. The most representative parts are ODBⅡ, ECM, EFI, EGR, EVAP and three-way catalytic converter (CAT)