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Transportation

Elon Musk Pledges To End "Range Anxiety" For Tesla Model S 286

An anonymous reader writes: Elon Musk has used his Twitter account to announce a press conference on Thursday which he claims will end "range anxiety" for Tesla's Model S sedan. Whatever change they're making will be implemented through an over-the-air software update to the cars, affecting the entire fleet. Range anxiety is the term for a fear that your vehicle won't have enough fuel/charge to reach its destination. It's a common reason for people to avoid buying electric cars, given the much smaller infrastructure build-out compared to gas stations. If Tesla is improving the Model S's range through a software update, then it likely involves optimizations to the battery and to the ways in which power is used. Tesla has also talked about developing a feature called "torque sleep," which puts one of the drive units to sleep while not needed. They say it can wake up and begin delivering torque again "so fast that the driver can't perceive it."
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Elon Musk Pledges To End "Range Anxiety" For Tesla Model S

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  • by Rei ( 128717 ) on Monday March 16, 2015 @08:28AM (#49266101) Homepage

    .. range. For example, more charging stations and/or a better locator (perhaps with a partnership with a nationwide chain of stores or two), better range calculation, a service to have charging trucks come out to you to you should you run out of charge (maybe even heading to the point where you would run out of charge before it even happens so that there's no wait), or all sorts of other possibilities. There's no guarantee that it actually means more range.

    Of course, it could mean that.

    • by itsdapead ( 734413 ) on Monday March 16, 2015 @08:52AM (#49266233)

      Of course, it could mean that.

      No - your suggestions are all better. Unless they're going to download new laws of physics to the cars, the sort of incremental range improvement that a software update might bring is hardly going to end "range anxiety". Range anxiety isn't so much about the absolute range - its about the scarcity of recharging stations c.f. petrol, the time taken to recharge, the uncertainty of the quoted range and the need to be towed to a recharge station if you do run out.

      • by itzly ( 3699663 )

        Well, the uncertainty of the quoted range is something that could be improved with a software update.

    • Since it's OTA, it can't be a new battery. And anyway, they said a few months ago that no significant hardware upgrades (batteries,...) were forthcoming in the near future. And if it's a software upgrade extending range through better battery management, it could never make such a drastic difference that it would "end range anxiety".

      Torque sleep only makes sense for dual engine models, definitely not "the entire fleet". Could be part of the announcement (torque sleep is overdue), but there has to be more. S

      • They have been testing a single swapping station with a limited number of cars. Maybe they are now planning to build more

        How will an OTA software update build more battery swapping stations?

        • by Andy Dodd ( 701 )

          Maybe the stations are already active but not advertised, and the OTA is for a database of them?

      • by gregben ( 844056 )

        Torque sleep only makes sense for dual engine models, definitely not "the entire fleet". Could be part of the announcement (torque sleep is overdue), but there has to be more. Something that also applies to the single engine models.

        Torque "sleep" may refer to a new motor control algorithm. It would work just fine on the single motor cars. Basically apply torque until speed reaches the setpoint, then turn the motor off. Only "wake up" and apply torque when the speed drops below the setpoint. If you do it quickly enough it is unnoticeable. It increases efficiency because it automatically takes advantage of tailwinds and downslopes. The same thing could be done with an i.c.e. car as well, without as much benefit, by stopping fuel flow an

    • a service to have charging trucks come out to you to you should you run out of charge (maybe even heading to the point where you would run out of charge before it even happens so that there's no wait)

      Hmm... I wonder if there is money to be made with some sort of "in air refueling" type scheme. huge truck consisting mainly of batteries or charged super caps pulls up behind a Model S, extends a rigid charging plug (appropriately penis shaped), and inserts it into a port mounted in the center of the rear trunk. Rapid charge exchange, credit account is debited, and the truck pulls away to go to the next customer. All performed at highway speeds...

    • by cplusplus ( 782679 ) on Monday March 16, 2015 @11:20AM (#49267399) Journal
      They rolled out an update to their almost forgotten Roadster that took the range from 245 to 400 miles recently... I assume they've hit upon a new algorithm to manage their drive motors and battery use.
    • by jellomizer ( 103300 ) on Monday March 16, 2015 @11:23AM (#49267425)

      I think the tipping point for electric vehicle range would be 1000 miles on one charge. Yes that is 2 to 4 times as much as most cars, however, the charging time for an electric car is much longer than gasoline, So in order for you to have a car good for all purposes ( Not an electric car for your commute, and a gas car for long trips ) 1000 range, means you can drive for 16 hours then take 8 hours (when you are sleeping ) to charge up.

      I think this 1000 mile per charge should be a goal for Electric auto makers. That or they need to need to match the charge time to a refueling time, and have at least 250 miles per charge.

      • I think you'd find the vast majority of people have never driven 16 hours without stopping. Normal humans need to eat, drink and poop... not to mention stretch.

        • The thing is with a petrol/diesel/lpg/etc powered car you can drive until the tank is nearly empty. Then at a conviniant location along the route stop, fill the fuel tank, go to the toilet, stretch grab a snack etc and be back on the road quickly. Especially if you have more than one person in the car and so can share the burden of driving this allows travelling for long periods with minimal stopped time.

          With an electric car so far you can't do that. You have to go out of your way to find a charging station

      • by AmiMoJo ( 196126 ) * on Monday March 16, 2015 @12:06PM (#49267809) Homepage Journal

        For you it might be 1000 miles, for most people Tesla have already more than exceeded their requirement. On the rare occasions when they do want to drive more than the Tesla allows on a single charge they will probably want to stop for a 45 minute break anyway, during which they can recharge.

        I'm a Leaf owner. I never have range issues, I never worry about it, and charging saves me time compared to pumping liquid fuel because the only time I ever go out of my way to do it I combine the rapid charging with a bathroom/coffee break. For most people most of the time even a Leaf is fine, it's just that they worry about those rare long journeys and seem to forget that they own another petrol car anyway.

      • by CrimsonAvenger ( 580665 ) on Monday March 16, 2015 @12:11PM (#49267849)

        I agree with the general notion that max range on an electric needs to be further than you'll ever drive in a day.

        But 1000 miles is a bit beyond even my idea of acceptable range. If an electric could get 600-700 miles on a charge, I'd be happy.

        Or alternately, if I can fully recharge an electric in ten minutes, that would also work. You might even be able to sweet talk me into a thirty minute recharge if the range were such as to allow for ONE recharge requirement per day of driving (which means a range of 500 miles or thereabouts).

        In neither case would the "but...but...people have to stop for lunch/bathroom/etc" matter. When I'm driving to visit family, I'm not going to stretch a 10-hour drive into a 15-hour drive by taking long breaks on the road....

    • I am betting that the feature will manage speed based on destination and charging. Many people either over or under estimate how speed affects range. By integrating speed/range calculations into driving, a Tesla should be able to manage max speed for the driver without the driver having to constantly guess.

      For bonus point the software update would be able to incorporate other range affecting factors into the calculations such as traffic, speedlimits, elevation changes, weather and driver habits.

  • by cloud.pt ( 3412475 ) on Monday March 16, 2015 @08:36AM (#49266139)
    In order to stop drivers from micromanaging their ranges, is just to let a user know how likely is he to run out of juice, right off the bat when he starts his journey. A simple voice request from the car speech synthesizer, asking for a city, a street, or something not very specific which can be used for broad calculations, and then let the user know: "You might have not enough battery to go/come back home"/"You can make a round trip 8 times to that destination"/"You might run out of juice but there's a supercharger nearby, would you like me to reserve a spot for you at hh:mm AM/PM?"
    • Re: (Score:3, Interesting)

      by Anonymous Coward

      A simple voice request from the car speech synthesizer, asking for a city, a street, or something not very specific which can be used for broad calculations, and then let the user know: "You might have not enough battery to go/come back home"/"You can make a round trip 8 times to that destination"/"You might run out of juice but there's a supercharger nearby, would you like me to reserve a spot for you at hh:mm AM/PM?"

      I love that I live in a day that this is perceived as "simple"!

    • by Rei ( 128717 ) on Monday March 16, 2015 @08:53AM (#49266241) Homepage

      Calculating range is a lot trickier than you might think, as so many factors come into play. I once started a company that worked on such range calculation software, we had to use very detailed vehicle models, use weather forecasts, historical weather data (to estimate road conditions - for example, snow, ice, water etc on the road), reasonably high resolution altitude models, real-time traffic data, traffic estimation, accessory power consumption (including factoring in weather data for climate control systems), driver behavior modelling, etc, and of course the fact that there's not straight roads going out to any given point in any given direction. And everything plays off everything else. The ambient temperature might affect your battery pack temperature which might affect its voltage which might affect the efficiency of the drive system and so forth. We discovered a lot of unexpected behavior, like how in order to get accurate wind resistance calculations we had to estimate realistic wind gusting patterns because the average wind speed (and direction) doesn't give the same results as a wind varied around an average. And there were a lot of things that we just didn't have and couldn't get data on, such as components of the car that weren't performing at the level that they should when new (though we had some ideas on how to estimate that), decisions that the driver might make later (such as to turn on/off accessories, change their driving speed, make unexpected stops, etc), and so forth.

      The standard approach of just drawing a circle around a person might work sometimes but be way, way off at other times. The actual range of an electric vehicle is a sort of pointy polygon warped along terrain contour lines and extending out the furthest on straight moderate-speed country roads with few stop signs / lights.

      Interestingly enough, while we had varying levels of interest from most major manufacturers, there was one manufacturer who made it clear right out that they do all of their software stack devel on such aspects in-house and have no interest in working with an outside entity. That manufacturer was Tesla.

      • by itzly ( 3699663 )

        Maybe the problem can be turned around. Tell the vehicle were you want to go, and it'll tell you if that's possible, and what needs to be optimized to achieve that.

        • Maybe the problem can be turned around. Tell the vehicle were you want to go, and it'll tell you if that's possible, and what needs to be optimized to achieve that.

          But that's the problem, I want to tell the car where to go, not the other way around. At the point where I'm asking the car where I can go, it had bloody well better be able to drive me there.

      • What happened to the company?
        • by Rei ( 128717 ) on Monday March 16, 2015 @10:39AM (#49267075) Homepage

          I got burned out and was out of money. We had a pilot project with GM, they really liked the software, but I just couldn't keep going. :(

          It's by the way part of the reason I really hate the patent system, it games everything against small players. Not that patents were ever used against me - but because I had to *get* patents, everyone wants to know what's in your patent portfolio before they even consider investment or contracting with you. I had to spend a whole programmer's salary of my own money paying for patent attorneys just to get a most minimal amount of coverage. Which meant that all of the programming work fell on me. And everything about the auto industry is such a colossal money pit... hiring marketing people to get you in the door, having these ridiculously expensive dinners with execs, and on and on. I lost so much money on that thing.

          This was in the days before kickstarter and the like took off, it might have been easier to raise enough money to stand a chance these days. But I just couldn't keep doing it. I was overworked and broke and totally out of my comfort zone managing a company. I never should have listened after all the people who beta'ed what I planned to be a free tool told me "oh my god you have to commercialize this!" :

  • This [teslamotorsclub.com]
  • by wonkey_monkey ( 2592601 ) on Monday March 16, 2015 @08:58AM (#49266277) Homepage

    an over-the-air software update [...] affecting the entire fleet

    Yeah. That worked really well for the twelve colonies in Battlestar Galactica.

  • Sounds like all hype to me.

    They mentioned that it's for the entire Model S fleet, most of which does not have dual motors so "torque sleep" may not be the answer. My hope is they eek out an extra 50 miles to a full charge and recommend 100% charging all the time (they currently recommend 90% charge most of the time and only to use 100% for long trips).

  • Re: (Score:2, Interesting)

    Comment removed based on user account deletion
    • Re: (Score:2, Insightful)

      by CanHasDIY ( 1672858 )

      Whining about Jeremy Clarkson "ruining" the reputation of electric cars is like whining that Jerry Seinfeld ruined the reputation of airline food.

      They're fucking comedians, dude. The only people taking Clarkson's jokes seriously are people with no sense of humor.

    • Jeremy Clarkson from the BBC's top gear has done everything in his power, for example, to cast a very negative light on even the most powerful hybrid and electric vehicles.

      Really? Did you see the BMW i8 Hybrid piece a few weeks ago? The one where he chooses the hybrid over the traditionally engined car at the end of the segment? The one where he likes the car for what it is?

      Stop with the bullshit that Clarkson hates hybrids or electric cars - he hates shit cars, so shit cars get hated on by him and the Top Gear team.

  • by Zobeid ( 314469 ) on Monday March 16, 2015 @09:16AM (#49266389)

    First of all, "Range Anxiety" is a registered trademark of General Motors. I hope Elon doesn't get in trouble for using it without GM's permission!

    Most people who actually own electric cars experience very little range anxiety. Far more common is "range anxiety anxiety": the fear that if you got an electric car, you might experience range anxiety.

    Also prevalent among car makers is "range anxiety anxiety anxiety": the fear that, if you made an electric car, range anxiety anxiety might prevent people from buying it.

    Remember folks, we have nothing to fear but. . . fear itself!

    • First of all, "Range Anxiety" is a registered trademark of General Motors. I hope Elon doesn't get in trouble for using it without GM's permission!

      Most people who actually own electric cars experience very little range anxiety. Far more common is "range anxiety anxiety": the fear that if you got an electric car, you might experience range anxiety.

      Also prevalent among car makers is "range anxiety anxiety anxiety": the fear that, if you made an electric car, range anxiety anxiety might prevent people from buying it.

      Remember folks, we have nothing to fear but. . . fear itself!

      Some people want to dismiss range anxiety as being some phantom issue. In the future it may be, but it is a real issue today.

      Most people who own electric cars have it as a second vehicle. They take an ICE car (own, rented, etc.) when they plan on going on a long trip, driving in bad weather (i.e. snow storm), etc.. Range anxiety is a real thing if it is your only vehicle.

      It's bad enough sitting on a highway in a snow storm with traffic backed up for miles because of an accident and seeing that you have a

      • by 140Mandak262Jamuna ( 970587 ) on Monday March 16, 2015 @10:49AM (#49267169) Journal
        You don't idle the electric car. It does not consume any power other than keeping the computer alive and the airconditioner/heater. In a snow storm, even with heat off you will survive well inside the car. Just think of the car as a huge insulated jacket.

        Already the original batch of engineers who worked with Elon have branched off pursuing other electric vehicles. Almost all the package delivery trucks (UPS, USPS, FedEX) can go electric. 90% of the school bus fleet can go electric. Garbage trucks that make lots of stops and starts will benefit greatly by going electric. Panel trucks used by mechanics, plumbers etc can also become electric. Elon is not pursuing them. But there is an active Elon alumnus working on these projects. With quick swap batteries, taxi fleet can become electric.

        It is merely a question of financing. Interest rates are at historic lows. That is what is now fueling the solar panel installations and wind energy projects now.

        • It does not consume any power other than keeping the computer alive and the airconditioner/heater.

          And the heater is a problem when idling in traffic in the snow. If you run the battery down maintaining a comfortable temperature, it's not like AAA can bring you a little can of electricity to make it to the next charging station where you can fill up and be on your way in a few minutes.

          Not only are gas stations more prevalent, but there are also a huge number of other options available if you run a gas powered car out of gas ranging from a passerby letting you siphon some out of their tank to someone dri

  • Better range estimates to give the user the confidence of the number displayed on the dash. Or even using GPS to find the charging stations nearby and letting the user know where to juice up in an emergency etc. Or even coming to an agreement with a huge chain distributed all over USA that already has three phase outlets (like laundromats or even fast food franchises) to make charging stations available for tesla... Since it is a pure software update it could be along these lines.

    But there are other ways

  • by wonkey_monkey ( 2592601 ) on Monday March 16, 2015 @09:22AM (#49266437) Homepage

    Isn't "torque sleep" a manoeuvre for stealing the covers?

    • I'm a reverse blanket bandit. If I don't make sure my GF is well insulated, she'll make me turn [up the heat | down the AC], and I will die of hypothermia before I lose that battle.

  • "Elon Musk ends range anxiety for penises - Film at 11."

  • They intend to brick every Tesla. You won't be worrying about the range anymore because that car is never going anywhere ever again.
  • Software update is software to call it to you when it calculates that you will not be able to make it to your destination.

    I mean, as long as we're all speculating I may as well throw in my prognostication.

    • Software update is software to call it to you when it calculates that you will not be able to make it to your destination.

      And here my first thought was similar but different. Not only will the car complain about how far it can go, it will start complaining if you drive out of battery range of a charging station, letting you know in advance how long the 115V extension cord charge will take to get you back into range of a charging station.

      Oh wait, that only puts certainty into the "how far can I go" calculus, it doesn't really do away with range anxiety, at least if it doesn't prompt you to take the other car out of the motor p

  • In a pure EV, Range Anxiety is a huge problem because obviously if you run out of power it will leave you stranded. Even if you could find an outlet to plug it into, it will take a significant amount of time to recharge especially if it is a low wattage 120v outlet. This could happen due to neglecting to charge up, incorrectly estimating range which is easy to do considering it varies depending on weather / driving conditions or in emergency situations. It's a problem because this means you need to plan

  • He has an absolute real genius for stirring up interest.

    And he's got me. I'd love to get a used, dual-motor Model 3 in 2020. Seriously.
    • I would love to live in a world where a 500hp electric car is 20k usd equiveant and isn't powered by coal power. Unfortunately I think that's probably 50 years out for me.
  • for range anxiety? VW Passat TDI. 690 miles before you have to hunt up a diesel pump.
    • Sadly though diesels pollute less than electrics (CO2 wise) for at least half of America and 80% of the worlds population, they don't get the attention and subsidy needed to reduce global emissions now. Electrics will be the go to best choice for pollution in all major markets only 20-50 years out from now. Probably 35 or so I am guessing.

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