AUTOMOTIVE ELECTRONICS FEATURE SHIFTING INTO
GEAR GIGABIT Why is Ethernet the best choice for in-vehicle networking?
O
ne of the most complex mobile computing devices, surprisingly, is used for commuting, daily goings-on, not for your cellular or networking exercises: your car. Up to one-half of a vehicle’s cost is down to the electronics installed inside, such as electronic control units and sensors. As a result, the data traffic within vehicles has increased massively and is putting a strain on established in-vehicle networking technologies. When vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) are added to the mix, it is clear that a new approach is necessary. Networking in a vehicle is somewhat different
to an office or even an industrial environment. Not only is the environment harsher with high temperatures, electromagnetic interference
4,000+ S,4 0 00 + Standar d e n c l o s ures
pe
prote cti on fo r e l e ct r i c al and electronic products
rotection for electrical and electr on i c prod ct
perfect ts
Watch our guide to simple
ndard enclosures ct
(EMI) and constant vibration; many of the systems require time-critical operation of the network. Ethernet has been the ‘de-facto’ networking standard for almost all business networking for decades, and is now coming to the fore as the most popular choice for future in-vehicle networking. As the standard has evolved, later versions offer deterministic operation, meaning that critical, safety-related information can be transmitted without delay, a step forward in leading Ethernet towards being automotive friendly. Offering speeds of up to 10Gbps and based upon unshielded twisted pair (UTP) cables, Ethernet removes the weight and cost often associated with in-vehicle wiring, thereby improving vehicle economy and lowering manufacturing costs: there is already a wealth of knowledge on Ethernet and its components available, ensuring a rapid and low-cost implementation.
Security is an increasing concern for automakers however: as vehicles become more ‘connected’, so too do the chances for malicious interference. However, actions over security in data centres have augmented the authentication and security features of Ethernet, technology that can be migrated to make in-vehicle networking more secure: if they can cope with the pressures of data management in these centres, an automotive setting shouldn’t prove too challenging.
Molex offers multi-Gigabit Ethernet solutions in this vein. Using their products, 10Gbps Ethernet network systems have been prototyped to deliver the end-to-end V2V/V2I connectivity needed to manage high volumes of sensor data, while simultaneously offering microkernel-based security algorithms to protect communications between the in-vehicle systems and connected cloud services. Mouser Electronics
www.eumouser.com
The Ethernet-based architecture for automotive systems
Tel: 01952 605849
Email:
sales@spelsberg.co.uk Web:
www.spelsberg.co.uk
Find out more
/ ELECTRONICS
ELECTRONICS | SEPTEMBER 2019
15
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44
