4 challenges of designing communications systems with automotive Ethernet

 

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Electrification, autonomous driving, and cloud connectivity – these are just a few of the major trends that are having a significant impact on the way automobiles design and manufactured today. By 2025, it’s estimated that plug-in electric cars will comprise 23% of new passenger vehicle sales globally, and about 75% will be fully electric.

But that’s not all that’s changing. McKinsey projects that up to 15% of new cars sold in 2030 could be fully autonomous – and that will require seamless Vehicle-to-Everything (V2X) communication over cellular and dedicated short-range communication (DSRC) networks, as well as cloud connectivity for real-time data transfer.

All of these requirements drive up complexity and cost. As a result, network communication architectures are evolving to provide scale and efficiency, along with additional processing power and performance. 

However, even as networking architectures evolve, traditional protocols are still central to the communications network. These protocols must support AUTOSAR, the industry’s de facto standard for automotive design. Automotive Ethernet is increasingly being used in automotive network design because of its ability to provide the necessary bandwidth for cameras, sensors, and other new technologies. An established protocol, automotive Ethernet is well understood among developers and provides a common network stack that’s suitable for handling gateway traffic between protocols.

However, there are several design challenges associated with using Ethernet as the communication protocol for automotive networks. 

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