Deterministic Communications for In-vehicle Network: Overview and Challenges

In recent years, intelligence has become an inevitable trend in the development of automobile industry, and advanced assistant driving or autonomous driving are important features of automobile intelligence. The increasing level of self-driving puts forward higher demands for in-vehicle communication. And traditional in-vehicle networks are difficult to cover a series of complex deterministic communication requirements including high-bandwidth, low latency, low jitter and zero congestion. Therefore, Automotive Ethernet technology came into being. IEEE developed a series of Time Sensitive Networks (TSN) standard protocols based on traditional Ethernet. TSN added a series of key mechanisms that provide realtime and reliability guarantees for data transmission. In this paper, we reviewed the evolution of in-vehicle networks and outlined the development of Time Triggered Ethernet (TTE) and TSN researches in recent years. We also discussed the importance of deterministic researches on in-vehicle networks and the challenges in the development of the Internet of Things, E/E (Electrical/Electronic) architectures, intelligent driving, and new energy vehicles.