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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.

Audi says gas-electric Q7 E-Tron PHEV coming to US, China

That 166 MPGe diesel-electric Audi Q7 E-Tron Quattro we wrote about last week from the Geneva Motor Show? The US might eventually get those, too. With one important change. Audi disclosed details about the upcoming Q7 E-Tron Quattro SUV plug-in hybrid at the Geneva show that were truly impressive. The model will be able to go as far as 35 miles on electric power alone and will have a fuel-efficiency rating of 166 miles per gallon equivalent. The 373-horsepower beast will also be able to go from 0 to 60 miles per hour in about six seconds. Like we said, impressive. Now, we're finding out from Automotive News Europe that not only will the model debut in Germany next year, but the US and China will get versions as well. The difference? Whereas the standard European version pairs a 3.0-liter six-cylinder diesel engine with an electric motor, our version will use a 2.0-liter turbocharged gas engine as its non-electric mill, said Automotive New Europe, citing comments from Audi development chief Ulrich Hackenberg in Geneva. No word on when the US will start seeing its version of the Q7 E-Tron, so we'll just have to take a look at Audi's press release below from earlier this month for full details on the diesel Q7 E-Tron. Related Videos: Great class, minimal emissions – the new Audi Q7 e-tron 3.0 TDI quattro First diesel plug-in hybrid with quattro drive in its segment Best value in the segment: up to 56 kilometers (34.8 mi) electric range Maximum efficiency with hybrid management Audi Q7 e-tron 3.0 TDI quattro It accelerates from a standstill to 100 km/h (62.1 mph) in six seconds, and yet consumes not even two liters of diesel per 100 kilometers (117.6 US mpg). The Audi Q7 e-tron quattro is sporty, comfortable and at the same time highly efficient. The world's first TDI plug in hybrid with quattro drive, it is also the first plug-in hybrid with a diesel engine from Audi. The Q7 e-tron quattro is Audi's second model with a powerful plug-in hybrid drive system. The model combines the best of two worlds: Powered by the lithium-ion battery, the large SUV covers up to 56 kilometers (34.8 mi) on electric power alone – quietly, powerfully and with zero local emissions. Together with the diesel engine, the car can cover a total distance of 1,410 kilometers (876.1 mi). Sporty power and minimum consumption The Audi Q7 e-tron quattro is the world's first plug-in hybrid car with a six-cylinder diesel engine and permanent all-wheel drive.

Malaise Era All-Stars

A few weeks ago, we bid a fond happy 40th anniversary to the automotive dark ages of 1973-84 that have come to be known as "The Malaise Era" - the performance ice-age when 160 horsepower was a lot and a 0-60 time of under 10 seconds was remarkable. Like music in the 1980s, everything in automobiledom didn't suck, however. There were a few bright spots. Here are five of our favorites:
1976-79 Porsche 930, aka 911 Turbo Carrera (above)
Photo Credit: Dorotheum