汽车CAN总线技术及其检测维修

汽车CAN总线技术是一种全新的汽车电控系统信息通信方式,是为解决现代汽车中众多的电控模块(ECU)之间的数据交换而开发的一种串行通信协议,适应汽车恶劣的工作环境和通信速度要求,在信息传递、资源共享方面有着独特的优势,并可有效减少线束的长度和节点数量;同时汽车CAN总线也有着自身独特的结构、工作特性以及相应的故障特点,对其性能的检测、故障的诊断和排除也应有其对应的方法和注意事项。

CAN Bus Technology of Vehicle and Maintenance

CAN bus of vehicle, which is a new way for information communication of vehicle electrical control system, is a serial communication protocol that designed for sloving data exchange among numerous electrical control modules. Moreover, it would be able to adapt wicked work circumstance and meet the need of communication speed. Since the CAN bus has unique superiority in information transfer and source share, it can reduce the length of wiring harness and amounts of nodes. At the meantime, CAN bus has particular structure, principle characteristic and fault characteristic, so there must be corresponding methods for performance detection and fault diagnosis.