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Watch Stanford's self-driving Audi hit the track

Sending a self-driving race car around a track with nobody inside seems pointless – there's no driver to enjoy the ride, and the car certainly isn't getting a thrill out of it. But the students performing research with Stanford University's Audi TTS test rig "Shelley" (not to be confused with Audi's own self-driving race cars) are getting a kick out of the numbers generated by the machine. "A race car driver can use all of a car's functionality to drive fast," says Stanford Professor Chris Gerdes. "We want to access that same functionality to make driving safer." The teams push the car to speeds over 120mph and the computers have executed lap times nearly as fast as professional drivers. However, they also spend a lot of time maneuvering at 50 to 75 mph, the speeds where accidents are most likely to happen. That way, the students can figure out how to incorporate braking, throttle and maneuvering to develop new types of automatic collision avoidance algorithms. Better technology, for instance, could have saved Google from a recent slow-speed accident where its vehicle was struck by a bus. During race days, students break into teams to perform different types of research. "Once you get to the track, things can go differently than you expect. So it's an excellent lesson of advanced planning," says Gerdes. In the latest rounds of testing, for instance, one PhD student developed emergency lane-change algorithms, while another recorded a skilled human driver in an attempt to convert his behavior into a driving algorithm. The main goal, of course, is to prepare students for something they may not have expected -- an automotive industry that is adopting self-driving technology at breakneck speeds. This article by Steve Dent originally ran on Engadget, the definitive guide to this connected life. Green Audi Technology Coupe Autonomous Vehicles Racing Vehicles Performance Videos racecar research

VW execs didn't think diesel problem would be so serious

Volkswagen Group has admitted that former chairman Martin Winterkorn received two memos about the diesel scandal in 2014. Top execs ignored the problem because they didn't think it was a serious issue. VW disclosed these details to counter allegations in a German shareholder lawsuit that alleged the automaker violated the law by withholding the info from investors. A memo on May 23, 2014 first advised Winterkorn about emissions cheating. A memo on May 23, 2014, first advised Winterkorn about the study from the International Council on Clean Transportation, which identified the emissions cheating. According to VW, the document was part of the exec's weekend mail, and the company's investigation didn't discover whether Winterkorn actually read it. A rumor last month alleged this memo existed. Another memo for Winterkorn on November 14, 2014 was about several defects, including the diesel engines. The document estimated it would cost 20 million euros ($22 million US at current rates) to fix the problem. The chairman learned about the issue again on July 27, 2015, during a meeting on product issues. "Mr. Winterkorn asked for further clarification of the issue," according to VW's statement. Things got serious at the end of August 2015. Things got serious at the end of August 2015 when technicians explained the diesel issue to the legal department. VW came clean to the California Air Resources Board and the Environmental Protection Agency on September 3. A memo told Winterkorn the next day, which was also previously alleged. According to this investigation, management didn't believe the diesel problem would affect the stock price, and they estimated the cheating might cost at most a few hundred million dollars in fines. The execs were clearly wrong. The share price dropped after the scandal broke last September, and the problems have started to affect its divisions. According to Reuters, Audi reported it suffered 228 million euros ($249 million) in costs in 2015 from the emissions issue and repairing Takata's faulty airbag inflators. Volkswagen still doesn't know the exact costs of the scandal, but the automaker's law firm, Jones Day, plans to release a report in the second half of April to explain the whole affair. By that time, we might also know how VW plans to fix the problem because a judge recently gave the company until March 24 to outline a fix for the 2.0-liter TDI. CARB started evaluating a repair plan for the 3.0-liter TDI in early February.

Audi to show hydrogen Q6 in Detroit

Audi is allegedly bringing a hydrogen-powered concept to the Motor City next month. The report comes from Autocar, which cites German media in claiming the new concept, tipped to be called the Q6 H-Tron, will ride on the same MLB architecture as the E-Tron Quattro Concept, shown at Frankfurt earlier this year. In fact, it sounds like the Detroit concept will look more or less like the Frankfurt concept, just with low-mounted hydrogen fuel cells instead of battery packs. That said, Audi didn't come right out and tell Autocar that the Q6 H-Tron was coming to Detroit. Instead, a company spokesman told the website that "a concept car with new drive technology" will be shown at next month's show. But this seems like a safe bet. As Audi continues to cope with the fallout of its diesel emissions scandal, shifting focus to an even more alternative fuel source would be a sound strategy, even if it is just a PR move. Whatever Audi ends up showing in Detroit, we'll be live at the show to report on all of it. Look for more in mid January.