基于ISO26262混合ASIL系统设计应用研究  

System Design of Hybrid ASIL Based on ISO26262

作　　者：谢凌云 Xie Lingyun(Shanghai Automobile Gear Works,Shanghai 201800,China)

机构地区：[1]上海汽车变速器有限公司,上海201800

出　　处：《传动技术》2021年第4期32-38,共7页Drive System Technique

摘　　要：在AUTOSAR软件架构下设计了一套符合ISO26262标准免于干扰要求的混合ASIL系统,将内存保护、时序保护和通讯保护应用到了该系统中,在主控芯片英飞凌TriCore277和电源管理芯片TLF35584的控制板上验证了MPU内存保护、程序流保护和E2E通讯保护等相关系统设计的正确性。研究结果为汽车功能安全软件的开发提供了一定的指导意义和应用价值。A hybrid ASIL system based on AUTOSAR is designed, which meets the ISO26262 requirements of the freedom from interference between software elements. The memory protection, timing protection and communication protection are applied to the system. Finally, the correctness of MPU memory protection, program flow supervision and E2 E communication protection is verified on the control board of the main control chip Infineon TriCore277 and the power management chip TLF35584. A certain guiding significance and application value were provided for the development of vehicle functional safety software.

关 键 词：AUTOSAR 功能安全 MPU 程序流 E2E 

分 类 号：U463.6[机械工程—车辆工程]