摘要
目前整车E/E架构由于面临来自不同控制器和传感器的数据交互需求而变得愈加复杂,所需要解决的问题包括:功能复杂性,通信带宽,计算能力,灵活性,可拓展性等。其中域控制器上层应用算法对获取数据的同步尤其敏感,数据融合需要针对同一时间点获取到的数据做融合处理。因此,对域控制器内部的异构多核、外部控制器数据以及传感器数据时间同步的研究尤其重要。基于此,文章详细介绍了域控制器片内及片外时间同步的方法,解决了域控制器内外部数据时间不同步的技术缺陷。
At present,the E/E architecture of the whole vehicle is becoming more and more complex due to the data interaction requirements from different controllers and sensors.The problems to be solved include:functional complexity,communication bandwidth,computing capacity,flexibility,scalability,etc.The upper application algorithm of domain controller is particularly sensitive to the synchronization of data acquisition.Data fusion needs to be processed for the data obtained at the same time point.Therefore,it is particularly important to research the time synchronization of heterogeneous multi-core,external controller data and sensor data in domain controller.This paper introduces the method of time synchronization in and out of chip of domain controller in detail,and solves the technical defects of the time synchronization of internal and external data of domain controller.
作者
凤良山
李俊
FENG Liangshan;LI Jun(SAIC TTTech Auto Technology Co.,Ltd.,Shanghai 201206)
出处
《汽车实用技术》
2022年第1期61-64,共4页
Automobile Applied Technology
关键词
域控制器
数据融合
传感器数据
异构多核
时间同步
Domain controller
Data fusion
Sensor data
Heterogeneous multi core
Time synchronization
