基于异构系统的OTA升级优化研究  

Research on optimization of Over⁃The⁃Air upgrades based on heterogeneous systems

作　　者：吴怀仁 车龙 李志新 WU Huairen;CHE Long;LI Zhixin(Guangzhou Automobile Group Co.,Ltd.,Guangzhou 510656,China)

机构地区：[1]广州汽车集团股份有限公司,广东广州510656

出　　处：《电子设计工程》2025年第1期160-165,共6页Electronic Design Engineering

基　　金：广东省汽车电子电气架构企业重点实验室(2023年度)(2023B1212020010)。

摘　　要：针对异构系统在升级时面临的多系统并发升级往往耗时较长,会加重用户等待负担的问题,采用OTA升级技术进行优化。通过对升级流程的深度革新,提出了基于A核与M核并行刷写,且M核的Norflash擦写采用流控并发的方法。通过实验证明,提出的方法可有效缩短异构系统升级时间,确保在各种电量条件下都能高效安全地完成升级任务,为智能汽车的OTA升级体验带来了实质性的改善。To address the issue of multiple concurrent system upgrades that heterogeneous systems face,which often take a long time and increase the waiting burden on users.Optimization using OTA upgrade technology.Through a deep innovation of the upgrade process,a parallel flashing method based on A core and M core was proposed,and the Norflash flashing of M core adopted a concurrent flow control method.Experimental results have shown that it can effectively shorten the upgrade time of heterogeneous systems,ensure efficient and safe completion of upgrade tasks under various power conditions,and bring substantial enhancement to the OTA upgrade experience of intelligent vehicles.

关 键 词：智能汽车 汽车电子架构 异构系统 OTA 升级时长 

分 类 号：TN130[电子电信—物理电子学]