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Mr. John Smith

Job title



Currently, intelligent and connected vehicles(ICVS) have been gradually proven to be the next generation of mobility. With the rapid development of automobile electronization, intelligentization and networking, the scale and complexity of the in-car electronic system are increasing day by day, and its intelligent systems such as lane departure warning and active collision avoidance system are also becoming more and more common. These systems require a lower delay, higher bandwidth and more reliability for vehicle network. Traditional vehicular network architecture can no longer meet the demand for automatic driving, entertainment, Multimedia, remote Diagnostic and Software Update, etc. Higher requirements are put forward for the relevant capability of automotive network architecture. For example, HD cameras, lidar and millimeter-wave radars are widely used in autonomous driving systems, and the data transmission of HD cameras and lidar requires a higher communication speed and more reliable network architecture to serve vehicle users. In the research of ICVS, network security has been paid more and more attention. In the field of ICVS, any network security is related to life safety. Therefore, the consideration of network security in network architecture is so critical. At the same time, to make ICVS more reliable, redundant design in the network architecture is also very important. The traditional CAN network cannot support the development of network security, while CANFD can support the functions of encryption and message authentication, and CANFD's bandwidth is much higher than that of CAN network. Automotive Ethernet can also carry out corresponding network security design, and its bandwidth has reached 100Mbps which is continuously developing. At the same time, in-vehicle Ethernet proposes AVB and TSN protocols, which can provide extremely low delay for keyframes. The synchronization protocol IEEE802.1AS and multiple scheduling protocols of the in-vehicle Ethernet work together to ensure the real-time performance of the system. The full-duplex transmission function of automotive Ethernet can also support the redundancy of the network architecture better. This paper analyzes the traditional vehicular network architecture and the current mainstream network architecture research and related technologies. This paper discusses the development trend of vehicular network architecture in the future. In consideration of real-time, bandwidth, reliability and safety requirements, a redundant hybrid network architecture with Ethernet backbone for future intelligent networked vehicles(ICVS) is proposed in this paper.

Mr. Zihao Fang, Tongji University, CHINA Mr. Feng Luo, Tongji University, CHINA Mr. Bowen Wang, Tongji University, CHINA Mr. Yutao Jin, Tongji University, CHINA Mr. Qiujian Li, Tongji University, CHINA

A Study On Network Architecture For The Future Intelligent And Connected Vehicles(ICVS)

F2021-ACM-106 • Paper + Video • FISITA World Congress 2021 • ACM - Automated and Connected Mobility


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