An Architecture for In-Vehicle Network

TL;DR

This paper proposes an Ethernet-based in-vehicle network architecture that ensures guaranteed performance, supporting complex sensor communication needs in modern vehicles with simple configuration.

Contribution

It introduces a novel Ethernet architecture for vehicles that provides provable guaranteed performance and ease of configuration, addressing the limitations of traditional and dedicated networks.

Findings

Supports high-bandwidth sensor data transmission

Provides provable latency guarantees

Simplifies network configuration

Abstract

As vehicles get equipped with increasingly complex sensors and processors, the communication requirements become more demanding. Traditionally, vehicles have used specialized networking technologies designed to guarantee bounded latencies, such as the Controller Area Network (CAN) bus. Recently, some have used dedicated technologies to transport signals from cameras, lidars, radars, and ultrasonic sensors. In parallel, IEEE working groups are defining Ethernet standards for time-sensitive networks (TSN). This paper describes an Ethernet-based architecture with provable guaranteed performance and simple configuration that is suitable for supporting the communication requirements of many vehicles.