Surprise surprise Dwight Giles Jr. Wickford RI
On Aug 13, 2018 8:19 PM, "Craig via Mercedes" <mercedes@okiebenz.com> wrote: > http://www.landlinemag.com/Story.aspx?StoryID=72797 > > The self-driving vehicle movement has reached another roadblock, one that > apparently some autonomous vehicles cannot see. In a report released by > the Insurance Institute for Highway Safety, some Level 2 autonomous > vehicles failed to stop for stationary objects, failed to stay in lanes, > or experienced safety issues in other ways. > > IIHS evaluated the 2017 BMW 5-series with Driving Assistant Plus, 2017 > Mercedes-Benz E-Class with Drive Pilot, 2018 Volvo S90 with Pilot Assist, > 2018 Tesla Model 3 and 2016 Model S with Autopilot. Road and track tests > studied the effectiveness of adaptive cruise control and active > lane-keeping features. > > In studying adaptive cruise control, vehicles were subject to four series > of track tests to examine how they respond to another vehicle in front of > them stopped and exiting lanes. One test had the cars going 31 mph toward > a stationary vehicle target with cruise control off and autobrake on. > Both Teslas hit the stationary target. > > With adaptive cruise control on, the BMW, Mercedes and both Tesla > vehicles came to a slow, gradual stop, with Tesla cars braking earlier. > However, the Volvo S90 braked just 1.1 seconds before impact to avoid > collision, resulting in a forceful stop. > > Another test had the cars following a lead vehicle that changed lanes to > reveal a stationary inflatable target ahead with about 4.3 seconds to > impact. With cruise control activated, none of the vehicles struck the > target. The Volvo still had a more forceful brake than the other test > cars. > > However, results were less favorable for the technologies away from the > track and out on the road. Every vehicle except the Tesla Model 3 failed > to respond to stopped vehicles ahead on an actual road. > > One researcher was driving the Mercedes E-Class at 55 mph on U.S. 33 near > Ruckersville, Va., with both active cruise control and lane-keeping > features activated. With no vehicle in front of her, the E-Class detected > a pickup truck stopped at a traffic light ahead. Unfortunately, the > detection system lost sight of the truck and continued at its current > speed. The researcher had to hit the brakes herself to avoid a crash. > > “At IIHS we are coached to intervene without warning, but other drivers > might not be as vigilant,” the researcher said in the report. “(Adaptive > cruise control) systems require drivers to pay attention to what the > vehicle is doing at all times and be ready to brake manually.” > > Other vehicles hit the brakes too much. Tesla’s Model 3 slowed down 12 > times in 180 miles. Researchers noticed that seven of those times > coincided with tree shadows on the road. Other times involved oncoming > traffic (in the correct lanes) and vehicles crossing the road far ahead. > > Looking into lane-keeping features, test vehicles were subjected to six > trials with three different sections of road. The Tesla Model 3 was the > only vehicle to stay in the lane in all 18 trials. The Model S > overcorrected on only one trial. > > Both the E-Class and S90 stayed in their lane in nine of 17 runs. BMW’s > 5-series technology stayed in its lane in only three of 16 runs. In some > cases, the test vehicle would follow a lead vehicle switching lanes, > rather than staying in its original lane. > > IIHS concluded that the outlook is promising for potential safety > benefits of adaptive cruise control. The institute was less impressed > with active lane-keeping, noting the evidence for safety benefits is not > as pronounced as cruise control technology. > > For autonomous vehicles as a whole, IIHS said fully self-driving vehicles > are far away from becoming a reality. > > “We’re not ready to say yet which company has the safest implementation > of Level 2 driver assistance, but it’s important to note that none of > these vehicles is capable of driving safely on its own,” said David Zuby, > IIHS chief research officer. “A production autonomous vehicle that can go > anywhere, anytime isn’t available at your local car dealer and won’t be > for quite some time. We aren’t there yet.” > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
