Slashdot Mirror


Coding Error Sends 2019 Subaru Ascents To the Car Crusher (ieee.org)

An anonymous reader quotes a report from IEEE Spectrum: [A] software remedy can't solve Subaru's issue with 293 of its 2019 Ascent SUVs. All 293 of the SUVs that were built in July will be scrapped because they are missing critical spot welds. According to Subaru's recall notice [PDF] filed with the U.S. National Highway Transportation Safety Administration, the welding robots at the Subaru Indiana Automotive plant in Lafayette, Ind., were improperly coded, which meant the robots omitted the spot welds required on the Ascents' B-pillar. Consumer Reports states that the B-pillar holds the second-row door hinges. As a result, the strength of the affected Ascents' bodies may be reduced, increasing the possibility of passenger injuries in a crash. Subaru indicated in the recall that "there is no physical remedy available; therefore, any vehicles found with missing welds will be destroyed." Luckily, only nine Ascents had been sold, and those customers are going to receive new vehicles. The rest were on dealer lots or in transit.

32 of 183 comments (clear)

  1. I guess that's the downside of a robot workforce by SuperKendall · · Score: 3, Insightful

    Human workforce: One welder misses a spot weld on one car, car has to be scrapped.

    Robot workforce: Every robot purposefully ignores spot welds, hundreds of cars destroyed.

    Extrapolating to Future:

    Human burger flipper: Messes up cooking a burger or two, some people get sick.

    Robot burger flipper: Every robot across the country cooks meat at too low a temp, hundreds die.

    I guess the bright side of the robot firmware-update disaster prone future is that mistakes are more noticeable (would one or two cars missing this spot weld have ever been noticed?), and can be fixed in bulk - until the next flaw...

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  2. I always mess up some mundane detail by JoeyRox · · Score: 3, Funny
  3. Re:I guess that's the downside of a robot workforc by JoeyRox · · Score: 5, Insightful

    Right, because humans never make a process mistake that applies to more than one unit on the production line?

  4. Not that affects everything everywhere by SuperKendall · · Score: 2, Interesting

    Right, because humans never make a process mistake that applies to more than one unit on the production line?

    Yep, it's Slashdot, there's always gotta be that one guy that makes you explain a joke in GREAT DETAIL. Ok then.

    Humans making a process mistake do not generally do so in a way that instantly applies to EVERY production line across multiple facilities, in places where the process was working just fine previously. Also P.S. the joke was about workers, not people defining the process. A process mistake would affect workers and robots the same way so is irrelevant to the joke.

    I'm not saying it's impossible for humans at the topmost level to make mistakes on this scale where human workers all do the wrong thing. But with robots it is tons easier for mistakes to be distributed instantly everywhere to "workers" on the line and affect many more units more quickly.

    I don't even think It negates the advantages of having robot production lines, it's just an interesting and (to me) kind of funny aspect of production automation. There are a whole host of interesting consequences and probably behavior that follow from this if you think forward instead of being pedantic about a joke.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:Not that affects everything everywhere by JoeyRox · · Score: 4, Insightful

      You claim it was a joke, then go on to explain in detail why the claim in your purported joke has merit. I'm confused.

    2. Re:Not that affects everything everywhere by Anonymous Coward · · Score: 5, Insightful

      To be clear, this was not a mistake the robots made. This was a human (i.e. coding) mistake. What would be interesting is to know where the mistake came from - an engineer in the factory, or an offshored or contract position in India.

    3. Re: Not that affects everything everywhere by alvinrod · · Score: 5, Insightful

      Explaining a joke is a bit like dissecting a frog. You might learn a lot from doing it, but it kills the frog in the process.

    4. Re: Not that affects everything everywhere by sodul · · Score: 5, Insightful

      Joke aside the impact of the robot mistake is much greater but it is worth it for several reasons.
      First the probability of mistakes is much lower with the robots than with humans, so for a million cars manufactured, the total number of mistakes by human vs robots will be higher for humans. So thatâ(TM)s the first win.
      Second if humans make mistakes this will be much more random and less likely to be detected, even with quality check sampling. Which mean that more end users will receive the faulty product.
      On the other hand, with robots since the mistake is consistent it is very likely that it will be noticed on one of the end products so it will be easier correct the issue and to track all of the defective units. Which is what happened here.

      Cars manufactured before the advent of robots were much more temperamental and failing in various inconsistent ways from one car to the other even when coming from the same factory, the same week.

    5. Re:Not that affects everything everywhere by cascadingstylesheet · · Score: 3, Insightful

      You claim it was a joke, then go on to explain in detail why the claim in your purported joke has merit. I'm confused.

      The best jokes have some degree of truth to them.

    6. Re:Not that affects everything everywhere by anegg · · Score: 4, Insightful

      Are not all mistakes "made" by robots actually human mistakes? Any sense of agency placed onto robots as entities is misplaced. Robots are tools, and they can fail to be instructed properly, or they can be used in circumstances where their efficacy is questionable, but they cannot "make mistakes."

      Any automated process, if automated incorrectly, will multiple the defective results the same as automated processes multiple effective results. Production line processes must have some form of quality control that checks to make sure that production is proceeded as expected. When a line is being started up, or changes have been made to the processes used on the line, the quality control checks should be frequent until the line is seen to be in control. Once the initial period has passed, statistical techniques to ensure that the line stays in control should be used. Without any more specific information about what went wrong in this case, it seems like either a new line went into production, or changes were made to an existing line, but the quality control checks on the output were not made soon enough to catch the production process mistake.

  5. Re:I guess that's the downside of a robot workforc by BigBlockMopar · · Score: 4, Insightful

    Right, because humans never make a process mistake that applies to more than one unit on the production line?

    Yeah... right. Garbage In = Garbage Out, whether your employees are humans or machines.

    Every employee, human or machine, only works on the best available data. Missing spot welds = missing data.

    If you have one of these cars, hold onto it. Verify that it is one of these cars, then save it someplace warm and dry. Automotive oddities, especially manufacturer recalls, are always important to collectors.

    If you have to drive it, remember that it's a modern car with modern safety systems. In the rare case of one specific kind of accident, it will be weaker than it should be.

    Thirty years ago, you could have had an open beer while you were waiting in line at the DMV. ("I spilled beer all over me, I could have been killed! / A car crashed into me and all you've got is light beer?" - Biff Tannen, Back To The Future, 1985). There were ashtrays in the lineup when I got my driver's license.

    Your Subaru is safe. They made a mistake. 10,000 moving parts, and if it's only 99.99% right, there are how many things still wrong with it?

    Save it, understand the fault, and don't make thousands of tons more greenhouse gas to scrap it.

    Don't drink and drive. Don't text and drive. Your Subaru is safe.

    --
    Fire and Meat. Yummy.
  6. Re:Good. by Known+Nutter · · Score: 2, Funny

    That's what she said.

    --
    Beware of the Leopard.
  7. Striped for spares by Going_Digital · · Score: 3, Insightful

    Surely they should go to a breakers where the engines should be dropped out of them and the faulty shell crushed. Seems like a massive waste to just crush the whole of a brand new vehicle.

    1. Re:Striped for spares by Registered+Coward+v2 · · Score: 4, Insightful

      Surely they should go to a breakers where the engines should be dropped out of them and the faulty shell crushed. Seems like a massive waste to just crush the whole of a brand new vehicle.

      Liability and tax concerns. While the parts are perfectly good, if they sent them elsewhere there's always the concern that a vehicle somehow get sold rather than stripped and leave Subaru liable; or simply a BS lawsuit because the part came from a defective vehicle. In addition, if they scrap the entire vehicle it's a loss write off, if they sell part of it then they have to account for the sale which is more trouble than it is worth.

      --
      I'm a consultant - I convert gibberish into cash-flow.
  8. Re:Good. by serviscope_minor · · Score: 2

    People want bigass SUVs because they're more macho than minivans. So all the SUV makers have to pork up[*] to avoid losing sales. The majority of SUVs are not bought for either the S or the U part. They're bought becase of how they look.

    What always gets me is how little space many of them have inside compared to a minivan. I'd pick the latter any day. With the good ones, the seats either come out completely or fold neatly out of the way, giving pretty decent cargo space.

    [*]I love that! Thanks GP!

    --
    SJW n. One who posts facts.
  9. What do you mean, "can't be fixed"? by hackertourist · · Score: 3, Interesting

    How is it not possible to run a welding torch over the weak seams? Sure, it's a couple hours to remove the seats and some trim, but that's still got to be a lot cheaper than scrapping the whole car.

    1. Re:What do you mean, "can't be fixed"? by mhotchin · · Score: 5, Insightful

      Because it was engineered for spot welds, and certified as such. Your type of repair is neither tested nor certified. It would cost more to *certify* the fix for 290 cars than the cars are worth.

    2. Re:What do you mean, "can't be fixed"? by quonset · · Score: 2

      Obviously it is or the people who designed the vehicles would have done what you suggested.

      There are times it's cheaper to tear an existing building down and build from scratch than it is to update/rehab what is already there. This is one of those cases. The hassle to tear down, spot weld, test, certify then put everything back is more costly than to simply get rid of the vehicles en masse.

    3. Re:What do you mean, "can't be fixed"? by MikeDataLink · · Score: 4, Interesting

      So use a spot welder rather than a torch, and duplicate the intended welding pattern. Still not rocket science.

      I suspect there are two things at play:

      1) It's probably much more difficult to get to the spot than makes sense. Once 2nd and 3rd assemblies are put together it may simple be too complicated to bother with.

      2) The liability. If this car is in an accident and that patchwork weld fails it will cost them a lot more than 293 cars cost.

      --
      Mike @ The Geek Pub. Let's Make Stuff!
    4. Re:What do you mean, "can't be fixed"? by PPH · · Score: 2

      And someone with a state Engineering license has to sign off on the design.

      Nope. Industrial exemption.

      --
      Have gnu, will travel.
    5. Re:What do you mean, "can't be fixed"? by foghelmut · · Score: 2

      Subaru's B-pillar has multiple layers of different types of steel. There are welds under welds, building up the pillar in a multi-step process. You can't just weld on top of it. https://www.planetsubaru.com/s... https://www.firehouse.com/resc...

  10. Re:Good. by b0s0z0ku · · Score: 2

    They've been using rear-facing car seats in Europe for longer than in the US, and generally, cars aren't as big as the barges driven in the US. (Northern Europeans are also taller than Americans, on average.)

  11. Re:Good. by Cmdln+Daco · · Score: 3, Insightful

    SUVs are bought because people have actual families to fit in their car. An economy sedan won't work. A minivan would probably be better and even safer, but people want a 'car' to drive.

    What pisses me off more is the bloat of the 'pickup truck.' They're hardly a pickup anymore, with four doors, two rows of seats and a tiny little symbolic box.

  12. Re: Good. by b0s0z0ku · · Score: 4, Insightful

    A pig of an SUV isn't a "car." A station wagon is a car and generally has more interior room than an SUV of the same size. It's just not lifted and dolled up to look like a truck. Look at the old Legacy wagons, Passat wagon, or Volvo V series.

  13. Re:I guess that's the downside of a robot workforc by Anonymous Coward · · Score: 2, Insightful

    yeah.. I'm gonna have to nope right the fuck out on this. I can control how I drive, but I cannot control everyone else on the road - hence, the chances of that accident happening are way too high for my liking.

  14. Re:Good. by serviscope_minor · · Score: 2

    A minivan would probably be better and even safer, but people want a 'car' to drive.

    Quite. People think they look cool and badass in an SUV or want to race off the lights or something. A minivan has as many seate with more space, more luggage and better economy. And can be converted to hold tons of stuff in about 3 minutes.

    --
    SJW n. One who posts facts.
  15. Re:I guess that's the downside of a robot workforc by toddestan · · Score: 4, Interesting

    I kind of doubt this car with its manufacturing defect will ever hold any significant value. It's quite likely that even if you decide you're going to keep it, the VIN will be invalidated in the system meaning that you will not be able to license and insure it, so forget about driving it on public roads.

    As recalled vehicles go, a more interesting example would be the late 80's Nissan Van. After Nissan recalled the van several times and failed to correct the tendency of the vans to overheat and self-immolate, Nissan gave up trying to fix them and attempted to buy back every single example at above market value and sent them all to the crusher. However, Nissan couldn't actually force anyone to sell their van. So despite all of this, a handful of owners decided to keep their vans anyway, making surviving examples extremely rare today. However, rare doesn't mean valuable, and it seems that the van is considered more of an oddity or a curiosity rather than something collectable.

  16. Re:Good. by Known+Nutter · · Score: 4, Informative

    Hope gas shoots up to $5 per gallon to get some of the mastodons off the roads and restore some rationality to the US auto market.

    That's a fucked up thing to say. It's happened in recent years and the people fucked the most by $5 gas are not limp-dicked asshole Hummer drivers. It's the wage earners -- you know, the working class -- who take the hit.

    --
    Beware of the Leopard.
  17. Re:I guess that's the downside of a robot workforc by uncqual · · Score: 4, Insightful

    However in this case they knew that exactly 293 cars were affected and which ones they were. This made it easy to track down and remove the unsafe cars from the roads and the supply chain.

    If it was humans who occasionally missed welds because they were hung over or were distracted because they had just been dumped by their husband, many would probably make it through inspection and end up on the road never to be noticed until an accident years later causes serious injury or death to the passenger and, for some reason, investigators actually dig into it and discover missing welds. Then, every car of the model/vintage remaining on the roads needs to be inspected for missing welds - which would probably be more expensive and reputation busting, even if not another single missing weld was found, than junking these 293 cars.

    One of the advantages of automation is that it tends to make the same mistake over and over - humans are more random about their mistakes.

    (I do wonder if they pull some usable components out of them - drivetrain, wheels, ECUs etc before crushing them. Probably it's not worth it as they would have to pay for removal and storage and introduce them into the supply chain for warranty repairs or similar - the supply chain is probably too inflexible to make that work. although, maybe they could use them in mechanic training...)

    --
    Why is there an "insightful" mod and why isn't it "-1"? If I wanted insight, I wouldn't be reading /.
  18. Re:Good. by dk20 · · Score: 2

    As someone who has 2 compact cars and a giant SUV i can tell you why some people buy them.

    False sense of safety. the thing weights a ton, almost takes the full lane.. but the significant other things it is "safer" even thought the cars all have 5 star crash ratings.

  19. That's mass production for ya by KingAlanI · · Score: 2

    In general, a downside of mass production is that making new items is more efficient per unit than specialized repair jobs even though the wasted material seems sad.

    As a currency nerd, I'm reminded of some things about US paper money.

    Replacements for damaged bills are 'star notes', a separate serial number range ending in a star - since 1910 it's been easier to make those ahead of time rather than print new ones with the same serial numbers. Not replacing with something would make the print run a nonstandard size or serial number increment.

    If an error on one bill has been discovered after the bills have been cut and wrapped into packs of 100, it's quicker to destroy and replace the whole pack than to find and replace the damaged bill(s) or save the undamaged bills for later use. With the latest $100 bill redesign, there were so many errors (with paper creasing) that it was worthwhile, but it was still a very involved process. The initial printings through much of 2010 and 2011 couldn't be released until 2016 as they were sorted. A new printing was ready for release by late 2013. The first wave was 6% star notes, an abnormally high error rate. The second wave was about 1%, still slightly high. The current wave is about two thirds of a percent, closer to normal.

    *except for a few very small runs of high denomination bills decades ago

    --
    I listen to both RIAA and non-RIAA stuff if I like the music, tangential business/politics nonwithstanding.
  20. Re:Coding error? yeah sure blame the programmer. by Darkling-MHCN · · Score: 3, Insightful

    +1 whoever trained the robots made the mistake. It was human error not robotic error, the robot did exactly what it was trained to do. At this stage of the game training a robot is a very exact meticulous process. Something like welding a car involves a process with no variation. The real fun and games will begin when people begin attempting to train artificially intelligent robots to perform tasks which are less exact and more organic in nature.