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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 reveals virtual reality 'dealership in a briefcase'

Virtual reality still seems like technology that should be lumped in with the flying car and colonizing the moon as the sort of perennially "almost-here" Next Big Thing that never quite arrives. However, devices like gaming's Oculus Rift suggests that it's too soon to write off VR just yet, and Audi apparently agrees. The heart of its new VR Experience is a headset that customers wear that lets them see a virtual car before their eyes. Using the technology, the potential buyer can sit behind the wheel or open up the trunk. A camera tracks their head movements and adjusts the image on the goggles accordingly. To make the whole experience even more immersive, headphones let them hear the sound of the door or listen to the radio. The German automaker claims that the VR Experience technology will be available in "dynamic growth markets" by the end of 2015. The system will essentially offer the entire dealership experience in a device the size of a briefcase, and it'll be possible to view every possible equipment combination and color on all of the brand's models. The immersive hardware sounds amazing, if it's as good as the automaker claims. Among other things, VR will allow buyers to pick out just the right color and trim, even if the dealer doesn't have that specific combo in stock. Read below for Audi's announcement of this sci-fi gadget that the company claims is on the way. Audi VR experience: the dealership in a briefcase Innovative virtual reality headset extends advisory service at Audi dealers Sales chief Luca de Meo: "Further proof of Audi's pioneering role in sphere of digitization" First Audi dealerships to introduce new sales tool by end of 2015 Audi is taking the next big step in integrating digital technologies into automotive retail: The Audi VR experience gives customers the opportunity to configure their preferred car at the dealership through virtual reality headsets and experience it in a unprecedentedly realistic way. The headset showcases the entire model portfolio of the four rings, including all possible equipment combinations. Audi has become the first automotive manufacturer to develop a dedicated retail software solution for virtual reality headsets.

Autoblog Podcast #408

Episode #408 of the Autoblog Podcast is here, and this week, Dan Roth, Steven Ewing, and Brandon Turkus talk about the possibility of France banning diesel, Cadillac putting Porsche in its sights, and the lineup of high-performance Fords potentially coming to the Detroit Auto Show. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening! Autoblog Podcast #408: The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics: France to ban diesel? Cadillac to go Porsche hunting Ford NAIAS lineup In The Autoblog Garage: 2015 Cadillac ATS Coupe 2015 Audi S3 Long-Term 2014 Jeep Cherokee Hosts: Dan Roth, Steven Ewing, Brandon Turkus Runtime: 01:04:56 Rundown: Intro and Garage - 00:00 France Diesel Ban - 27:13 Cadillac vs. Porsche - 34:32 Ford Performance at NAIAS - 42:23 Q&A - 49:46 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Podcasts Detroit Auto Show Audi Cadillac Ford Jeep