关键词: 总线关闭, 车载网络, 汽车开放系统架构（AUTOSAR）, 汽车仪表

Abstract: For network management based on AUTOSAR, there exist deficiencies in node fault and bus off processing, and inter-node coordination. In order to ensure reliability and stability of vehicle network communication, an improved strategy is proposed for CAN bus. Two fault processing states are added into the original state transition diagram, and the node fault and bus shutdown are effectively processed. Meanwhile, a network wake-up indication bit is added to the Network Management Protocol Data Unit, and then the inter-node coordination operation is implemented. Finally, the specific improvement policy is given, and it is tested on a platform which is constructed by the automotive instrumentation and CANoe software. The test results illustrate the effectiveness and reliability of the proposed strategy.

Key words: bus off, vehicle network, AUTOSAR, automotive instrumentation