车载总线通讯安全分析

Safety Analysis of Vehicle Bus Communication

随着汽车智能化和网联化的快速发展,车辆上应用的电子控制单元(ECU)数量越发庞大。在成本有效控制的基础上保证不同种类的电子控制单元可以有效地通讯,不同的总线协议被应用到车辆上。车辆作为对于安全性要求非常高的一种产品,不同的总线协议有着其独有的特点。对不同总线应用过程可能出现的安全性问题进行分析,是保证车辆安全开发的必要的条件。文章对不同的车载总线应用情况进行简要介绍,明确常见总线类型的各自特点,归纳不同协议类型的总线在应用过程中的面临的共性问题,分析风险问题的产生,可能风险点并提出简要防护措施。

With the rapid development of automobile intelligence and networking,the number of electronic control units(ECUs)used in vehicles is increasing.On the basis of cost-effective control,it is ensured that different types of electronic control units can communicate effectively,and different bus protocols is applied to the vehicle.As a product with very high safety requirements,different bus protocols have their own unique characteristics.The analysis of the safety problems that may occur during the application of different buses is a necessary condition to ensure the safe development of vehicles in advance.This article briefly introduces the application of different vehicle buses,clarifies the respective characteristics of common bus types,summarizes the common problems faced by different protocol types in the application process,analyzes the occurrence of risk problems,and proposes possible risk points and proposes a brief protection measures.