Car Ethernet promotes the next wave of connected cars

Nowadays, drivers and passengers are expecting more and more digital cars, and the demand for in-vehicle interconnections is becoming more and more sophisticated. This has prompted the automotive industry to continue to grow in demand for in-vehicle network construction and bandwidth. In fact, analysts predict that by 2025, all vehicles will have some form of interconnection.

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Ethernet technology has been used for a long time, spread across cloud data centers, carriers and enterprise-class networks, and is currently infiltrating into the automotive industry. Car Ethernet provides a more scalable and open architecture that can be enjoyed by the public. Access to entertainment information features and security features in ultra-luxury cars.

Dr. Ali Abaye, Senior Director, Automotive Business, Broadcom

Automotive Ethernet has all the elements you need to implement the next generation of connected cars. At present, multiple networks in the car run simultaneously, including the camera system network, the infotainment network, and the driver safety network. Each network uses a different wiring. In fact, cabling systems are a major cost factor considered by automakers – studies have shown that cable bundles are the second most important component in the car, second only to the engine, both in terms of cost and overall vehicle weight.

Single-pair Ethernet is a new technology introduced in 2011. The technology has been optimized to meet the ever-increasing bandwidth requirements while meeting the automotive industry's stringent requirements for reliability, electromagnetic emissions and power consumption. Single-pair unshielded automotive Ethernet cables work with smaller, more compact connectors to deliver up to 100 Mbps of bandwidth while reducing connection costs by up to 80% and connecting wire weight by 30%2.

With single-pair automotive Ethernet, you can move from multiple closed applications to a unified open, scalable network, enabling automakers to adopt a variety of electronic systems and devices, such as advanced security features (ie 360-degree panoramic parking assist systems) , rear view camera, collision avoidance system) and comfort and infotainment features.

With the development of connected cars, people are increasingly concerned about car network security issues. In automotive applications, the entire car will become a mobile data center that takes full advantage of the security features of Ethernet itself. Using single-pair car Ethernet as the backbone of the car, you can use the network security features such as device/message authentication and message encryption to protect the vehicle from malicious attacks and eavesdropping, and to avoid installing unauthorized devices.

Single-pair car Ethernet also reduces latency in the car network, making the car a true entertainment center that seamlessly interfaces with mobile devices and live streaming. In the not-too-distant future, drivers can use the full-range audio navigation function, front passengers can download streaming music from the Internet, and passengers in the rear can watch different videos through the display in front of them - without affecting Ethernet The quality of any data stream within.

Standardization is an important driver in the implementation of new and innovative in-vehicle applications. Standardization allows automakers to meet customer needs and ensure product quality. Developing solutions based on relevant standards not only shortens time-to-market, but also ensures product availability, lifecycle, upgradeability, and interoperability. The OPEN Alliance Standards Industry Group was established in 2011 and is primarily comprised of leading technology and automotive companies to encourage widespread adoption and application of automotive Ethernet as an industry standard.

In the process of building a future automotive network, OPEN will play an important role – helping automotive OEMs minimize design risks and meet stringent environmental and demanding industry requirements for automotive electronics components through a proven platform.

On this basis, a compatible, open architecture system will significantly reduce the network complexity and wiring costs of automotive OEMs, enabling new generations of cars to have exciting new features and benefits.

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