总线化车身控制及诊断系统的设计

低成本和低功耗、高可靠性和智能化是制约网络化技术在车身控制中应用的重要因素。兼顾实时性和成本，设计开发了基于CAN／LIN总线的车身电子电器网络化控制系统，该系统由左、右前车灯模块，左、右后车灯模块，左、右后视镜模块，车项灯光控制模块，组合开关模块等组成。在介绍了车身控制网络的拓扑结构、各CAN／LIN控制模块的软硬件设计的基础上，着重讨论了模块的智能驱动、冗余设计、抗干扰措施、异常保护、故障诊断和报警的软硬件实现方法，以及控制模块的低功耗设计等内容。完成的控制网络已在桑塔纳2000上进行了装车，实验结果验证了方案的可行性和正确性。

Design of Body Control and Diagnosis System Based on CAN Bus and LIN Bus

Low cost,low power consumption,high reliability and intelligence restrain in-vehicle network from application.In this paper,a body electronics system which is based on CAN and LIN bus is presented with the trade-off between the real-time requirements and low cost.The system consists of left front,right front,left rear,right rear lamp modules,left and right mirror modules,column switch etc.This paper discuss the topology of in-vehicle network,the hardware and software design of CAN/LIN network and emphasis is placed on the implementation of intelligence control,redundancy design,noise immunity,diagnosis,alarming and the low power consumption design of modules.The system described in this paper has been installed on SANTANA2000 and result shows that the design is feasible to practice.