Fast Failover in Ethernet-Based Automotive Networks

The IEEE 802.1Q-2018 standard embeds in Ethernet bridges novel features that are very important for automated driving, such as the support for time-driven communications. However, cars move in a world where unpredictable events may occur and determine unforeseen situations. To properly react to such situations, the in-car communication system has to support event-driven transmissions with very low and bounded delays. This work provides the performance evaluation of EDSched, a traffic management scheme for IEEE 802.1Q bridges and end nodes that introduces explicit support for event-driven real-time traffic. EDSched works at the MAC layer and builds upon the mechanisms defined in the IEEE 802.1Q-2018 standard.

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Automotive Networks Based Intra-Vehicular Communication Applications

New Advances in Vehicular Technology and Automotive Engineering ◽

10.5772/45792 ◽

2012 ◽

Cited By ~ 1

Author(s):

Preeti Bajaj ◽

Milind Khanapurkar

Keyword(s):

Vehicular Communication ◽

Automotive Networks

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Hybrid FlexRay/CAN Automotive Networks

Embedded Computing Systems ◽

10.4018/978-1-4666-3922-5.ch016 ◽

2013 ◽

pp. 323-342

Author(s):

Rodrigo Lange ◽

Rômulo Silva de Oliveira

Keyword(s):

Communication Networks ◽

Exponential Growth ◽

Information Exchange ◽

Controller Area Network ◽

Area Network ◽

Vehicular Communication ◽

Control Units ◽

Vehicular Communication Networks ◽

Automotive Networks ◽

Embedded Applications

In recent years, the automotive industry has witnessed an exponential growth in the number of vehicular embedded applications, leading to the adoption of distributed implementations for systems in the powertrain and chassis domains. The Controller Area Network (CAN) protocol has been a de facto standard for intra-vehicular communications, while the FlexRay Communication System is being promoted as the future de facto standard for network interconnections of applications related to X-by-wire systems. Due to the characteristics of CAN and FlexRay, the coexistence of both protocols in the same vehicle is expected, leading to the use of gateways to manage the information exchange between electronic control units connected to different network segments. This chapter describes the main characteristics of CAN and FlexRay protocols, surveying the literature addressing schedulability and time analysis in both FlexRay and CAN protocols. The chapter also outlines the state-of-the-art in research about gateways for intra-vehicular communication networks.

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