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Google Patents Self-Driving Car That Glues Pedestrians To The Hood In A Crash (cnn.com)

An anonymous reader quotes a report from CNN: Google just got a patent for a special kind of coating on self-driving cars that could help prevent pedestrian injuries. The company wants to coat autonomous vehicles with a sticky substance so that if they hit a pedestrian, the person would be glued to the car instead of flying off. "[The pedestrian] is not thrown from the vehicle, thereby preventing a secondary impact between the pedestrian and the road surface or other object," says the patent, granted on Tuesday. Google explains that an "adhesive layer" would be placed on the hood, front bumper and front side panels of a car. A thin coating would protect it until an impact occurred. Google is paying Arizona residents $20 per hour to test its self-driving vehicles.

38 of 203 comments (clear)

  1. KATAMARI DAMACY 2017 MODEL by Anonymous Coward · · Score: 5, Funny

    with all the options

    1. Re:KATAMARI DAMACY 2017 MODEL by ShanghaiBill · · Score: 4, Funny

      1. Go to Goodwill and buy some really cheap used clothes.
      2. Look for a SDC going in your direction.
      3. Jump onto the side of the car.
      4. When you get to your destination, squirm out of the clothes, and leave them stuck to the vehicle.

      Uber will also have an optional discount for riding on the hood of the car.

    2. Re:KATAMARI DAMACY 2017 MODEL by AmiMoJo · · Score: 2

      Which makes me wonder, how will they stop the build up of insects and other road debris sticking to the front of the car and making the adhesive ineffective? How will the stop is washing off?

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  2. Or they could be pinned by HalAtWork · · Score: 3, Insightful

    between the car and another object/vehicle

    1. Re:Or they could be pinned by JustAnotherOldGuy · · Score: 4, Insightful

      between the car and another object/vehicle

      Exactly my thought. The car won't be damaged because your body will cushion the (next) impact.

      --
      Just cruising through this digital world at 33 1/3 rpm...
    2. Re:Or they could be pinned by BigDukeSix · · Score: 4, Informative

      Pedestrians either get hit in the street or parking lot, or they get pinned against the wall of a garage (where else are the cars?). In the latter case, the crush injury happens irrespective of the presence of the adhesive layer. We should consider edge cases, but this is a bona fide genius idea. Add a dispersive gel layer underneath the adhesive and this might make a real difference.

      Disclaimer: I am a trauma surgeon, and do crash reconstruction work on the side.

    3. Re:Or they could be pinned by beh · · Score: 4, Funny

      You're forgetting another important point - with one person stuck to the car, google might recoup some of the research funding by exposing their captive audience (i.e. poor schmuck on the fender) to "relevant ads" (lawyers, health professionals)...

  3. Ideas by HumanWiki · · Score: 4, Insightful

    They're not always good.

  4. Great! by Narcocide · · Score: 5, Funny

    Auto safety features inspired by Carmageddon. That's just what we needed.

  5. Steam achievement? by JustNiz · · Score: 4, Funny

    I wonder if you get a steam achievement for collecting multiple pedestrians?

  6. Bonus points by burtosis · · Score: 2

    If you are able to glue the face of the victim to the hood such that they suffocate. Remember this is America and lawsuits are like a friendly hello.

  7. Wrong Google Story (Off Topic) by Anonymous Coward · · Score: 2, Informative

    What we should be discussing is why they have Yuri Kochiyama as today's google doodle with a whitewashed description of what she stood for. Apparently idolizing Mao and Osama Bin Laden is somehow important to google.

  8. I take it all back by PopeRatzo · · Score: 4, Funny

    Self-driving cars are going to be fun after all.

    --
    You are welcome on my lawn.
  9. Re:What does B have to do with A? by dgatwood · · Score: 2

    I can see the job application now:

    • I can lift up to 40 pounds occasionally (yes/no) ___
    • I can tolerate wind speeds of up to 65 MPH (yes/no) ___
    • I can tolerate occasional bird strikes at up to 135 MPH (yes/no) ___
    --

    Check out my sci-fi/humor trilogy at PatriotsBooks.

  10. I've got one thing to say about that! by RyanFenton · · Score: 2
  11. It'll be a "Smart" adhesive... by aklinux · · Score: 4, Insightful

    It will only stick pedestrians. Not dirt, birds, cats, etc ;-)

  12. Dirt, leaves, road grime, etc. by Theovon · · Score: 2

    It can’t JUST be a sticky layer, otherwise it’ll last about 5 minutes before it gets a layer of environmental debris on it.

    1. Re:Dirt, leaves, road grime, etc. by eth1 · · Score: 3, Insightful

      It can’t JUST be a sticky layer, otherwise it’ll last about 5 minutes before it gets a layer of environmental debris on it.

      And another 5 minutes until the miscreants realize how much fun it is to stick crap on people's cars while they're sleeping.

  13. See... by Stormy+Dragon · · Score: 4, Funny

    ...this is what you get when you legalize recreational marijuana.

  14. Re: Are Seagulls going to be stuck to the hood? by alvinrod · · Score: 4, Insightful

    There's bugs in their idea. Literal bugs. They're already a pain in the ass to scrape off a vehicle. This conceivably makes the problem worse. I suppose if you live in the valley the homeless are thicker than he insects, but this is worthless outside of the bubble. . . . err valley.

  15. Re: Are Seagulls going to be stuck to the hood? by olsmeister · · Score: 3, Insightful

    A thin coating would protect it until an impact occurred.

  16. Comment removed by account_deleted · · Score: 2

    Comment removed based on user account deletion

  17. Re: Are Seagulls going to be stuck to the hood? by sexconker · · Score: 2

    Or the car was washed. Or the sky did that thing where water fell out of it. Or the sun hood got hot and cooked it away.

    Any coating thin enough to GTFO upon impact with a person quickly and effectively enough for an underlying adhesive to garb and hold them against the force of the impact isn't going to last long in normal conditions.

  18. A kidnapper's dream... by Glasswire · · Score: 2

    ...you don't even have to slow up to grab someone off the street, just jump the sidewalk, glue them on and haul them away to a secluded point for hiding.

  19. Some Days You're The Windshield by tomhath · · Score: 2

    And some days you're the bug.

  20. Afterwards? by R3d+M3rcury · · Score: 4, Insightful

    Okay, so the concept is the person is hit by the car and does not go flying 20 feet when the car hits them. They have an outer-shell that is reasonably strong so you're not picking up bugs, grass, etc. Sounds like a plan.

    My question is "How do you get the person unstuck afterwards?"

    So I'm standing in the road and the car hits me, I stick to his hood and I'm now traveling the speed of his car, let's say 30 MPH. He jams on his brakes because, let's face it, there's a guy stuck to his hood. The nice thing is that I'm not going to fly off the car at 30 MPH. The car comes to a stop and the driver gets out and asks if I'm okay. I may have some bumps and bruises, but I'm good.

    Okay, that's gotta be pretty good stickum to hold my 180-pounds to the car while it's decelerating. So how do I peel myself off the hood of his car? I mean, I would imagine that any stickum that can hold me in place while a car decelerates from 30 to 0 is not going to let me just get up afterwards.

    And Lord help the hairy shirtless men who get hit. That's gonna hurt!

    1. Re:Afterwards? by burtosis · · Score: 2

      Okay, so the concept is the person is hit by the car and does not go flying 20 feet when the car hits them. They have an outer-shell that is reasonably strong so you're not picking up bugs, grass, etc. Sounds like a plan.

      My question is "How do you get the person unstuck afterwards?"

      So I'm standing in the road and the car hits me, I stick to his hood and I'm now traveling the speed of his car, let's say 30 MPH. He jams on his brakes because, let's face it, there's a guy stuck to his hood. The nice thing is that I'm not going to fly off the car at 30 MPH. The car comes to a stop and the driver gets out and asks if I'm okay. I may have some bumps and bruises, but I'm good.

      Okay, that's gotta be pretty good stickum to hold my 180-pounds to the car while it's decelerating. So how do I peel myself off the hood of his car? I mean, I would imagine that any stickum that can hold me in place while a car decelerates from 30 to 0 is not going to let me just get up afterwards.

      And Lord help the hairy shirtless men who get hit. That's gonna hurt!

      Even better is someone who gets partially stuck and most of them thrown off the car. Most of them....

    2. Re:Afterwards? by BitZtream · · Score: 2, Insightful

      180 pounds covering a 13x13" area is 1 pound per inch.

      That's not a lot of to hold on too, so when you hands apple 180 pounds to smaller areas, of you come.

      Also, how it reacts to fast motion can be different than slow. Think about non-newtonion fluids. You can run across a pool for the proper ratio of water and corn starch ... Or you can stop and sink in it.

      --
      Persistent Volume manager for Kubernetes - https://github.com/dwimsey/openshift-pvmanager
  21. Adhesive only during impact by ilsaloving · · Score: 3, Insightful

    A very quick skim of the patent says that there would be a coating on top of the adhesive coating. This top coat is designed to break during impact, exposing the pedestrian to the adhesive underneath.

    I'm not sure the patent designer considered what to do when the car is inevitably hit with gravel or other objects that are sharp or have enough energy to break the topcoat.

  22. adds a new meaning by Black+Parrot · · Score: 5, Funny

    to the term "bumper sticker".

    --
    Sheesh, evil *and* a jerk. -- Jade
  23. physics! by goombah99 · · Score: 4, Insightful

    I suspect the logic for this idea comes from considering an elastic collision between a heavy and light object.
    for a car with mass M, and intial velocity Vi and pedestrian of mass m, with initially no velocity and then final velocity Vp we can write:

    MVi = MVf + mVp

    MVi^2 = MVf^2 + mVp^2

    for conservation of momentum and energy.

    Solving these equations for Vp we get

    Vp = 2 Vf *M/(M+m) ~ 2Vf

    so an elastic collision throws the pedestrian off at a speed of twice the car's velocity, who then hits the ground.

    If the pedestrian sticks to the car their final velocity if half that and four times less energtic.

    Even if it's not a fully elastic collision the point is taken it's better to stick to the car.

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:physics! by rgbatduke · · Score: 3, Interesting

      Super-good physics. Now consider the practical aspect of driving a car with active glue all over the paint through:

      * Bugs. I can coat my windshield with bug guts in a single night drive from my house to the coast through various swampy regions. And my windshield isn't sticky.

      * Pollen. I live in NC, and in the spring my car -- well, really everything, not just my car, inside and out -- is coated with a layer of tree pollen so thick that it is virtually opaque. Again, this sticks to hard finish PAINT. I can only imagine how tightly it will adhere to glue as it sits out in the sun.

      * Dust. Even when the pollen season is over, there is always dust in the air. Always. That's why we have to wash our cars a few times a year unless we want people to write "wash me" with their fingers on our fenders and windshields.

      * Salt + grime. Yes I live in the south without that problem so much but h/t to our northern cousins who have to drive through slushmelt. I'm guessing immersing an active glue surface in slushmelt would pretty much end the effectiveness of the glue.

      * Fall leaves. For that matter, summer leaves if you park under live oaks or evergreens. Maple seeds. Acorns. Birds. Squirrels. I can't wait to come out some morning and see my self-driving car with a seagull glued to the front fender. Oh my.

      * Children, pets, old people.

      I would say that all of this makes it impractical to drive a car with active sticky flypaper instead of paint as a "permanent" primary front coating. Laughably impractical.

      Which leaves us with the only alternative -- a "glue bag" as a sort of external equivalent of an internal airbag. Now, is it possible to come up with a formula for stickum that can be sprayed in the (say) millisecond before a collision so that it coats a pedestrian -- but not their mouth or eyes or lungs, which would be "bad" -- and the front bumper just in time to catch the human and stick them and hold during the millisecond or so that they are actually in contact with the bumper/hood? Personally I doubt it. I know of no glues that can be applied and will stick and set in a millisecond, especially glues that are non-toxic and safe to spray onto random humans to lower risk of death. Can you imagine an explosion of super-glue all over somebody -- not that super-glue can come close to bonding in a millisecond.

      So this seems like a really stupid idea too. Which makes the entire idea sound incredibly stupid, not worth the money required to patent it. If they wanted to accomplish the same thing in a PRACTICAL way, they could just mount airbags on the front fender that were triggered by certain conditions, such as an impending collision. That would actually be USEFUL -- and not just for humans. Having a heavy-duty airbag go off to cushion a regular collision between two cars could actually significantly reduce the average force during the impulse by spreading it out over a meter BEFORE starting to crumple the front bumper accordion. It would also do exactly the same thing as the glue to a pedestrian only better -- catch them on a meter or so of compressing air while the impulse matches their speed to that of the car. You might even be able to make the bag itself "sticky", although I suspect that would interfere with its explosion -- at least you might be able to make it out of e.g. neoprene with a non-stick stickiness.

      Not impressed, wouldn't invest.

      --
      Even when the experts all agree, they may well be mistaken. --- Bertrand Russell.
    2. Re:physics! by sbrown7792 · · Score: 2
      Literally right in the summary.

      A thin coating would protect it until an impact occurred.

      Sticky adhesive under a thin layer of something which would give way when a sizable impact occurs, allowing the pedestrian to stick to the adhesive.

  24. Re: Are Seagulls going to be stuck to the hood? by Joe_Dragon · · Score: 2

    par for the course when you only hire PHD's

  25. Re: Are Seagulls going to be stuck to the hood? by Ol+Olsoc · · Score: 2

    That thin coating will get destroyed by bugs, bird shit, rocks, scraping snow of your car, high-pressure water from the carwash, etc.

    Whoever thought of this idea never owned a car in his life, and those who decided that this idea was any good are idiots.

    This wonderful adhesive which I see no mention of what it actually is - is going to be freakin' awesome! It will maintain it's adhesive properties from Death Valley summer daytime heat to Minnesota and Alaskan winters.

    It will spread out rapidly enough through the broken non-sticky layer to capture the unfortunate pedestrians What's more, it will be immune to gravity even in the hottest conditions, and stay exactly where it is put. whether in the proposed honeycomb structure, or free range sticky stuff.

    The plastic that gets cracked to release the sticky stuff instantaneously will also maintain all of it's properties over a 100+ degree F temperature range as well.

    It's probably more practical and successful to pass laws forcing people to wear human airbags or not allow anyone outside unless they are in one of those human sized hamster balls.

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
  26. Re:Are Seagulls going to be stuck to the hood? by qubezz · · Score: 2

    The design is that you have a crispity crunchity outer shell with a delicious gooey nougat underneath. In practical use it seems like it would degrade quickly - the front of my car is peppered with rock chips, and there are probably many more impacts that didn't leave a scar, that would affect such a material.

  27. Other Mammals? by VorpalRodent · · Score: 3, Insightful

    I live in Wisconsin. On the back roads, it's not uncommon to see deer attempt to cross traffic, and there are quite a few unlucky motorists who manage to hit one.

    Now, if the impact doesn't kill the deer, I have an angry/terrified deer thrashing about on my hood.

    If the impact *does* kill the deer, I'll need to have tags with me, since I'm now transporting a deer that I just killed.

    --
    Take it to the limit, everybody to the limit, come on, everybody fhqwhgads.
  28. Human flypaper + alcohol -- WCGW? by Hotawa+Hawk-eye · · Score: 2

    If this ever comes out, I give it five minutes before some drunk folks decide to try to stick themselves to their friend's car and go down the road at a high rate of speed for the thrill of it. Let's hope that flypaper is strong enough to hold at 50 or 60 miles per hour.