摘 要：CAN总线是车辆电子系统的关键通信链路，其稳定运行对保障车辆性能与安全至关重要。针对智能电动汽车中CAN总线物理层通信延时引发的故障，本文系统分析了相应的排查方法与优化策略，并结合实际案例阐述了具体的排查步骤与解决措施，旨在为相关技术人员提供有效的故障诊断思路与方法。
关键词：智能电动汽车；CAN总线；物理层；延时
中图分类号：U463.67 文献标志码：A DOI：10.15917/j.cnki.1006-3331.2026.03.007
Intelligent Electric Vehicle CAN Bus Physical Layer Delay Control
QIN Gaofeng,AN Yanting
Abstract: As a key communication link in vehicle electronic systems,the stable operation of the CAN bus proves critical to ensuring vehicle performance and safety.Focusing on faults induced by physical-layer communication delays of the CAN bus in intelligent electric vehicles,this paper systematically analyzes diagnostic methods and optimization strategies.Practical case studies illustrate detailed troubleshooting procedures and corrective measures,thereby providing effective guidance for engineers in fault diagnosis.
Key words: intelligent electric vehicle; CAN bus; physical layer;delay
