【作者】 刘梅；

【导师】 陈梅；

【作者基本信息】 合肥工业大学 ， 控制理论与控制工程， 2005， 硕士

【摘要】 本文论述了基于CAN(Controller Aera Network)总线的汽车车身控制系统的设计和实现。它是以AT89C51CC01/03为核心,基于μ COS Ⅱ操作系统的CAN智能节点在某品牌商务车车身控制系统中的应用,文章简述了其硬件电路设计及软件结构,并对设计中的难点及实现过程中应注意的问题进行了介绍。随着现代汽车新技术的飞速发展,车辆安全系统和舒适系统的不断完善,用于车辆中的电气设备越来越多。为了更好地监控这些电气设备,我们对车身电控系统进行了重新布置,并加装车载网络控制单元。该系统承担了以前由单独的继电器和控制单元所执行的功能,并在车载网络控制单元中集成了数据总线诊断接口,实现了不同的CAN数据总线系统间的数据交换。在整车上,仅用六个通讯节点就代替繁杂的线束,轻松实现了全车数据共享。全车数据共享让汽车成为一个智能化的整体,从而具有更好的自我调节能力。CAN总线技术是一种新兴的现代通讯技术,具有实时性好、可靠性高、性能价格比高等突出优点,特别适用于汽车车身控制系统。实验测试结果表明本系统各部分电路运行基本稳定,设计合理,达到了课题的预期效果。更多还原

【Abstract】 In this paper, we discuss the design and realization of the control system of the automobile bodies based on the control area network(CAN). This control system takes AT89C51CC01/03 as a core technique and is based on the application of the (J.COS II operating system in the control system of some commercial automobile bodies. We briefly discuss the design of its hardware circuit and software framework, and introduce the difficulties in the design and key questions in the realization.With the fast development of the modern automobile techniques and the gradual improvement of the automobile safety system and convenience system, more and more electrical equipments have been used in the automobiles nowadays. In order to better monitor these electrical equipments, we re-dispose the electrical control system of the automobile bodies and fix internet control units on automobile. This control system takes on all the functions of the former individual relay and control unit and integrates data bus diagnosis interface into the internet control units on automobile, therefore, it realizes the data exchange between different CAN data bus systems. In the whole automobile, no more than six communication nodes can replace those miscellaneous wiring harness and easily realize the data share in a whole automobile. Data share in a whole automobile makes automobiles become a intelligentized whole and thus have better self-adjustment.The CAN bus technique is a burgeoning modern communication technique, which has many outstanding advantages such as good real time, high reliability, high ratio of performance to price and so on. It especially suits to the control system of the automobile bodies.The experimental results show that every circuit of this control system has a logical design and runs smoothly, so we believe this system has reached the anticipated purpose.更多还原