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Audi is working on a suspension that gets power from bumpy roads

Regenerative brakes aren't new. They're on virtually every hybrid and EV, and they're even starting to pop up on traditional gas-powered cars, like with the i-ELOOP-equipped Mazda6. But even with these systems, cars can get more efficient, and Audi thinks it found yet another source of wasted energy. The source? The suspension. The idea is to turn the kinetic energy that goes into the dampers into usable energy instead of as waste heat. Audi isn't the first auto company to come up with regenerative suspension – nearly three years ago, ZF introduced its GenShock technology, which used a valve attached to traditional, oil-filled hydraulic shocks to recapture kinetic energy from movement caused by bumps in the road. Audi's prototype technology, which it calls eROT, replaces traditional dampers with horizontally oriented electromechanical rotary dampers. eROT is apparently short for electromechanical rotary damper. Neat. In testing, eROT recovered an average of 100 to 150 watts on a typical German road, three watts from a fresh piece of pavement, and 613 watts on a rough stretch of tarmac (wattage is calculated as power over time, so this is actually the rate at which the system harvests energy). The dampers channel that energy to a tiny, 0.5-kWh, 48-volt battery. The prototype is claimed to cut CO2 emissions by three grams per kilometer (4.8 grams per mile), while the company believes a future production version could save up to 0.7 liters of fuel per 100 kilometers of driving. Converting the savings to American miles per gallon isn't easy, so we'll use a practical example. In the US, the Q7's supercharged 3.0-liter V6 returns a combined rating of 21 miles per gallon, which works out to 11.2 liters per 100 kilometers. Apply eROT's 0.7L/100km savings, and the Q7's economy would improve to 10.5L/100km, or 22.4 mpg, a 1.4-mpg improvement. That's not huge, but because math, 0.7L/100km is more dramatic on a more fuel efficient vehicle – taking an A3's 27-mpg combined rating and adding eROT would drive efficiency up 2.4 mpg, for example. There are a few other big benefits beyond fuel and emissions savings – Audi claims eROT provides a more comfortable ride than traditional active suspensions, because engineers can tune the compression and rebound strokes independently of each other. Beyond that, the horizontally oriented rear suspension geometry means more cargo space, since the dampers don't poke up into the cabin like they normally do.

Audi Q3 recalled for wanting to stay dry

Volkswagen of America has announced a recall of the 2015 Audi Q3 because in one instance the car might not stop what it's doing even when you turn it off. If you shut down the car while the sunroof is closing, the sunroof could keep on closing. That possibility contravenes federal standards concerning roof panel systems and affects up to 3,646 examples of the Q3 manufactured between April 4, 2014 and November 5, 2014. Customers are asked to bring their Q3s to their Audi dealers, where the sunroof control module will be updated free of charge. You'll find a bit more information in the bulletin from the National Highway Traffic Safety Administration below. Related Video: Report Receipt Date: APR 03, 2015NHTSA Campaign Number: 15V200000Component(s): VISIBILITYPotential Number of Units Affected: 3,646Vehicle Make Model Model Year(s): AUDI Q3 2015Manufacturer: Volkswagen Group of America, Inc.SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2015 Audi Q3 vehicles manufactured April 4, 2014, to November 5, 2014. If the vehicle is turned off while the sunroof is closing, the sunroof may continue to close instead of stopping. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 118, "Power-Operated Window, Partition, and Roof Panel Systems."CONSEQUENCE: If the sunroof is closing while the vehicle is shut off and a vehicle occupant is in its path, there is an increased risk of injury.REMEDY: Audi will notify owners, and dealers will update the sunroof control module software, free of charge. The recall began on April 13, 2015. Owners may contact Audi customer service at 1-800-253-2834 FREE. Volkswagen's number for this recall is 60C1.NOTES: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 FREE (TTY 1-800-424-9153 FREE), or go to www.safercar.gov.

Audi RS3 and Volkswagen Golf R face off in Evo test

Typically when an automotive publication pits two rivals against each other, they come from different companies. After all, why would one automaker – even one parent company – develop two distinct models to compete against each other? Well, the Volkswagen Group isn't like most. It pits Porsches against Lamborghinis, Audis against Bentleys, Seats against Skodas... all under the same roof. In the high-powered hot hatch market, it offers both the VW Golf R and the Audi RS3. The question is, which is the better drive? Evo put them both on track for a quick bout of sibling rivalry to find out. On paper it would seem like an unfair fight. Sure, both are based on the same platform and channel their power to the tarmac through all four wheels. But the Audi's five-cylinder engine packs considerably more muscle than the Golf's four: 362 horsepower and 343 pound-feet of torque trump 296 hp and 280 lb-ft. There's just no way around that – at least until the Golf R 400 comes along. The Audi, as you might have guessed, also costs substantially more than the Volkswagen. But that's not Evo's concern here. This is a cost-no-object, bare-knuckle throw-down. Watch the ten-minute video above to find out if the cheaper, less powerful Golf R can keep pace with its more upscale and brawnier brother. Related Video: News Source: Evo via YouTube Audi Volkswagen Hatchback Performance Videos vw golf r evo