汽车电子控制系统的故障诊断技术述评

Diagnostic Techniques in Automotive Control System:A Survey

现代汽车电子控制系统是一种分布式、网络化的嵌入式系统。传统针对个体组件的诊断方法往往无法充分识别系统异常行为的真正原因,因为这种方法本身所运用的知识所限。目前对于汽车电子控制系统的诊断研究,日益增长的趋势是站在系统全局的观点的方法进行故障诊断,并对系统有一个持续性的整体状况监测。这一研究的目的是希望提升线下维修的便捷性和车辆运行时的安全性。

Modem automotive electronic control systems are distributed networked embedded systems. Diagnostic routines implemented on individual components cannot adequately identify the true cause of anomalous behavior because their view is restricted to component-local information. A growing trend in diagnostics research for these systems is to use system-level approaches to diagnose anomalous behavior and provide a consistent, global view of the system＇s health. Current approaches are typically motivated by a desire to improve either off-line maintenance or run-time safety