汽车集成安全系统硬件架构功能安全概念设计

Functional Safety Conceptual Design of Hardware Architecture for Automotive Integrated Safety System

随着科技不断进步,在现代汽车安全技术中的主动安全和被动安全正在向着集成化方向发展。接下来,如何保证功能复杂的汽车集成安全系统不会因为不必要的失效故障导致适得其反的严重后果是一个关键问题。本文在汽车集成安全系统控制器的硬件架构概念设计中引入了功能安全的理念,提出了安全完整性要求下的可靠架构设计原则以及其中传感器、执行机构组件、硬件看门狗监控和内存保护的具体要求。基于此硬件架构概念,设计失效故障率更低、更可靠的汽车集成安全系统就有了基础和保证。

With advances in technology have made continuous progress, the integration of active safety and passive safety technology has been the trend of vehicle safety. Next, how to guarantee the automotive integrated safety system can＇t cause any because unnecessary failures in counter- productive results are a key problem. This paper builds the ideas of functional safety into the system hardware architectures＇ conceptual design. It put forward a list of principles for reliable architecture design under ASIL（Automotive Safety Integrity Level） requirements and specific requirements for the memory protection and the monitoring of sensors, actuator components and hardware watchdog. With these, the designing more reliable automotive integrated safety system is guaranteed.