Automotive Electronics
vehicle susceptible to problems encountered elsewhere in the internet world. With the increasing connectivity, achieving maximum security will become a key target for the automotive industry. Even more than the financial world where credit cards, pin numbers and ATM machines are designed to operate in a closed system, the automotive industry faces particular technical challenges when it comes to security. There are already examples of security
problems with today's more technically advanced vehicles. There is the possibility an increasing number of reported hacks which are taking place through driver's in-car entertainment system. An example of this is where hackers have been introducing false MP3 files into the car. As today's cars are completely interconnected, if a malicious file gets into the car system via a compromised MP3 player in a car, other automotive components can quickly be affected and cause more significant damage. If the future car is going to be able to safeguard us against traffic incidents then these security issues need to be eliminated. In order to safeguard systems against attacks, technology companies and car OEMs need to ensure that the right technology is in place to provide proper encryption and authentication for secure data exchange, authentication and privacy protection. One important thing that has been learned from automotive hacking attempts is the electronics architecture of modern cars must consider security aspects from the design
phase. It is necessary to isolate the individual subsystems and to secure critical functions. Any communication between critical and non-critical systems and networks must be verified, ECUs have to authenticate themselves when they exchange messages. The solution of choice to protect the integrity of vehicles is the integration of a trustworthy component – a trust anchor – into the ECU. To be able to withstand sophisticated physical attacks, the usage of hardware based trust anchors, is absolutely vital. NXP, is a manufacturer of crypto- and authentication solutions, is well positioned to offer secure elements based on SmartMX to the automotive industry in an attempt to bringbanking- level security into the automotive world.
Making the connected car a reality
At the ITS World Congress in Detroit in September global companies specialised in intelligent transport systems (ITS) showed the power of the connected car. NXP Semiconductors gave a live demonstration of V2X there to have people experience its latest generation of technology in action.
The student-designed, "Stella", the world's first solar-powered family car, was equipped with NXP RoadLINK technology. The Eindhoven University of Technology built "Stella" to highlight next-generation urban mobility solutions to address the current and future mobility needs of mega cities. RoadLINK is designed to provide the mobility performance and flexibility that is needed
to cover safety messaging tasks in the challenging automotive environment. The chip technology behind RoadLINK combines the SAF5100 software-defined radio processor with TEF510x, a dual radio multi band RF transceiver. RoadLINK technology is especially designed to help to bring safety-critical information to the driver significantly faster than current, conventional applications can. For this purpose NXP is working closely together with Cohda Wireless, based in Australia. Two RoadLINK products have already been brought to market and the technology is set to hit the road in mass production already in 2017. These products are the SAF5100 and the TEF510x.
The SAF5100, for automotive customer design-in, is a flexible, software defined radio processor for Vehicle2Vehicler and Vehicle2Infrastructure communication. The processor was introduced last year by NXP, and brings us one step closer in realising the vision of enabling a complete V2X infrastructure – to reduce CO2 emissions, reduce traffic congestion, avoid accidents, and save lives. The SAF5100 processor is fully programmable and can support unique algorithms to improve reception in wireless communication as well as support multiple wireless standards and different car manufacturer antenna configurations. It also provides wireless link performance via the 802.11p firmware from Cohda Wireless. With a 12-mm x 12-mm LFBGA package, the
SAF5100 has a very small PCB footprint which allows the receiver to fit into confined spaces. The software-defined radio approach allows car manufacturers to deploy a global V2X service based on a single hardware platform with end-of- line configurability by firmware download.
The TEF510x is a dual radio multi band RF transceiver for V2X applications. Supporting global V2X and Wi-Fi standards, the TEF510x provides car manufacturers with an optimised solution to meet 802.11p modem functionality on one chip. The chip has the flexibility to incorporate most of the world's standards and various system configurations including Japanese 760Mz V2X requirements, US and European (5.9GHz) as well as Wi-Fi and DSRC (5.8GHz) specifications. It will be released for automotive production in 2015 and is expected to be available to consumers as early as 2016. To adapt to a variety of model configurations as well as body structures, the TEF510x supports various antenna configurations and diversity schemes. Together with SAF510x, it enables 802.11p reception for mobility use cases even in non-line-of-sight conditions.
The building blocks for the connected
car are slowly but surely being put in place.
NXP Semiconductors |
www.nxp.com
Maurice Geraets is Sr. Director New Business, NXP Semiconductors
www.cieonline.co.uk
Components in Electronics
October 2014 11
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