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Audi says new 48 volt micro-hybrid system improves fuel economy, paves way for electrification

Most cars use a 12-volt system to power their electrical components. But, with more and more electric bits and bobs being added to new vehicles, a dozen volts is looking a bit weak these days. In fact, Audi says that standard 12-volt systems are being stretched "to their very limits." Enter 48 volts. If used in a car that gets 40 mpg, that would translate to around 43.5 mpg. Audi is testing a supplemental 48-volt electric system in two prototype vehicles – modified mild-hybrid versions of the A6 TDI and the RS 5 TDI – in order to add in more electric technology (an electric compressor, for example, to improve acceleration) and "convenience systems for dynamic chassis control." Audi says it has more applications in the pipeline, but the overall gist is that the German automaker sees 48 volts as an "important building block in electrification strategy." As you can see in the picture above (click to enlarge), the RS 5 TDI concept uses a li-ion battery installed in the back of the car and an alternator to provide 48 volts when the engine is off. Audi says that the 48-volt system can save up to 0.4 liters of fuel per 100 kilometers. To put that into US numbers, if used in a car that gets 40 miles per gallon today, that would translate into a bump up to around 43.5 mpg. The Advanced Lead Acid Battery Consortium (ALABC) is also working on a 48-volt system to improve fuel economy and we've got a deep dive of Audi's electric turbocharger here. Even more powerful and efficient – the new 48-volt technology from Audi Important building block in electrification strategy More voltage and more power for new technologies Scalable platform concept suitable for wide-ranging uses Ingolstadt, August 25, 2014 – Audi is to upgrade part of its vehicle electrical system from twelve to 48 volts. The move represents another technical building block for facilitating the integration of new automotive technologies while increasing the power and efficiency of its cars. "We are using the full bandwidth of electrification in our drive principles strategy. Running part of the vehicle electrical system at 48 volts plays a central role in this," commented Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi. "It enables us to make more energy available.

Honda, Audi sweep European tin-top championships

Despite his win at the Japanese Grand Prix this weekend, Sebastian Vettel still has another race or two to go before he can claim his fourth consecutive World Championship in Formula 1. Back in Europe, however, this weekend saw several championship titles decided in a variety of tin-top racing series.
In the British Touring Car Championship, Gordon Shedden won the final round at Brands Hatch this weekend, but that wasn't enough to defend his title. Instead, the ultimate glory went to Andrew Jordan, also driving a Honda Civic, coming in ninth place to take a seven-point victory over Shedden in the final standings. Little wonder then that Honda took the constructors' championship and the Honda Yuasa Racing team took the teams' title. Four-time BTCC champion and Fifth Gear co-host Jason Plato, now driving for MG, landed third in the standings.
While Honda dominated the British championship, it was Audi that reigned supreme in mainland Europe. In the Superstars International Series - Italy's touring-car championship - Gianni Morbidelli drove the Audi RS5 to his fifth title, finishing the season's final race in a calculated third place behind the BMW racecars of Giovanni Berton and Max Mugelli. It's the second consecutive win for the RS5 in the Superstars series (Johan Kristoffersson won the title last year), and the second this year following Mike Rockenfeller's title in the RS5 DTM.

Audi first to bring LTE to the car later this year

It appears Audi will be the first to market with in-car LTE service later this year. We knew that BMW was working on LTE integration last year with its ConnectedDrive, and we've been told that, by the end of 2015, most General Motors products will have it, but LTE can be ordered on the S3 Sportback (pictured) as soon as July. Other models in the A3 line-up will add the option in November.
Inserting an LTE-enabled SIM card into the Audi's MMI navigation will make the S3 a WLAN hotspot that can quickly shuffle high-definition content from the cloud to the cockpit. It will also bolster Audi Connect services like Google Earth, Facebook and Twitter, e-mail, and streaming internet radio.
We've been told that we'll be offered the LTE option when the 2015 A3 sedan gets here in the spring of 2014. Since the service requires you to provide a SIM card, we expect that costs and data caps will be a matter between you and the service provider; speaking of which, Audi hasn't announced yet who that provider will be on this side of the Atlantic. The press release below has more details.