晏欣炜+周奎+朱政泽+王思山+周海鹰

摘要：

汽车产业正朝智能化方向发展，对汽车电控系统的网络架构与通信能力提出了挑战。具有高带宽、高实时、高安全性和高可靠性的车内实时以太网技术作为下一代车载网络的发展方向，受到广泛关注。分析了现有国内外新能源汽车车载网络技术（In-vehicle Network， IVN）的发展现状，阐述了车载网络在带宽压力及高可靠性需求下面临的挑战，讨论了未来以太网技术结合汽车产业的发展趋势，最后指出进一步完善汽车电控架构设计，开发车载以太网产品，制订相关标准规范的必要性。

关键词：车载网络技术；汽车电控架构；汽车智能化；实时以太网技术

DOIDOI：10.11907/rjdk.173318

中图分类号：TP393

文獻标识码：A文章编号文章编号：16727800（2018）001000404

Abstract：Intelligentization is the direction of the development of automobile industry. Automotive electronic control system network architecture and communications capabilities are facing new challenges. Invehicle Realtime Ethernet technology with high bandwidth， high realtime， high security and high reliability attracts a lot of attention as the development direction of the next generation of vehicular network. In this paper， the current development of Invehicle Network （IVN） technology for new energy vehicles was analyzed. The challenges faced by IVN technology under the demand of bandwidth pressure and high reliability were expounded. The future development trend of Ethernet technology combined with automobile industry was also discussed. Finally， this paper pointed out the necessity of further improving the design of automotive electronic control structure， developing vehicle Ethernet products and formulating relevant standards.

Key Words：Invehicle Network （IVN）； automotive electronic control structure； automotive intelligentization； realtime ethernet technology

0引言

发展新能源汽车既是有效缓解能源和环境压力，也是推动汽车产业可持续发展的紧迫任务。中国颁布了《节能与新能源汽车产业发展规划（2012-2020）》，将“节能与新能源汽车”纳入《中国制造2025》的战略任务和重点突破领域。尽管中国新能源汽车产业发展较快、初具规模，但作为新能源汽车三大核心技术之一的电控系统尚未取得突破，相关的技术标准、协议专利及核心零部件仍由国外企业垄断，新能源汽车的成本居高不下，产业的盈利水平和竞争能力难以持续与国外企业抗衡[1]。

目前，汽车技术正沿着智能化、轻量化、电动化的方向发展，汽车影音娱乐、主动安全、智能驾驶与智能网联等新兴业务正在或即将涌现。智能化……