Slashdot Mirror


Toyota and Tesla May Work Together Again

cartechboy writes: Tesla and Toyota have already worked together a few times. The factory in which Tesla builds the electric Model S? It bought that from Toyota. The Toyota RAV4 EV? The battery and software tuning was done by Tesla. Now it sounds like Tesla and Toyota might have another significant project in the pipeline in the next two or three years. Tesla CEO Musk said such a project could be "on a much higher volume level" than the firm's last project with Toyota, the RAV4 EV. Toyota currently has a 2.4 percent stake in Tesla Motors and has sold 2,130 RAV4 EVs through August. For its part, Toyota has no comment regarding Musk's statements about the future project. Given Toyota's stance on electric cars, Musk's comment is a bit confusing. So what exactly will this joint project be?

51 comments

  1. Tesla stories on Slashdot by dgriff · · Score: 1

    How come there are Tesla stories nearly every day on Slashdot?

    1. Re:Tesla stories on Slashdot by i+kan+reed · · Score: 4, Informative

      Because pure electric cars are new technology that are cool and interesting to read about. Because, for the moment, it still reads like an underdog story(not that I actually buy into that being true). Because are we really that interested in what, say, Microsoft is up to now?

    2. Re:Tesla stories on Slashdot by Noughmad · · Score: 3, Funny

      Even though this is really a non-story, it's still much more interesting than Bitcoin.

      --
      PlusFive Slashdot reader for Android. Can post comments.
    3. Re:Tesla stories on Slashdot by Anonymous Coward · · Score: 0

      Pure electric cars have been around for around 120 years. What are you going on about?

    4. Re:Tesla stories on Slashdot by Anonymous Coward · · Score: 0

      But much less appealing than raspberry pie.

    5. Re:Tesla stories on Slashdot by PRMan · · Score: 3, Insightful

      And yet, nobody started buying them in any significant volume until the last couple years.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    6. Re:Tesla stories on Slashdot by Twinbee · · Score: 2

      Then they went away, but only have only recently made a comeback. And they're far, FAR better than ever before due mostly to advancements in battery technology.

      --
      Why OpalCalc is the best Windows calc
    7. Re:Tesla stories on Slashdot by PRMan · · Score: 1

      I find them both interesting. If you don't like the bitcoin stories (or the electric car stories) don't click on them.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    8. Re:Tesla stories on Slashdot by i+kan+reed · · Score: 2

      This is a bit like going "why talk about computers like they're new" in the 50s, because the babbage introduced the difference engine in 1822.

    9. Re:Tesla stories on Slashdot by Anonymous Coward · · Score: 0

      But then how would everybody know that he's "not" interested in them?

    10. Re:Tesla stories on Slashdot by angel'o'sphere · · Score: 1

      Pure electric cars are old technology.
      The first cars all where electric around 1870 ... and later.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    11. Re:Tesla stories on Slashdot by Anonymous Coward · · Score: 0

      Even though this is really a non-story, it's still much more interesting than Bitcoin.

      I'm sure you meant Buttcoin.

    12. Re:Tesla stories on Slashdot by Anonymous Coward · · Score: 0

      People are buying them in the volume at which they are being produced. Tesla, for example, has a waiting list of orders which cannot be filled until the vehicles are produced.

  2. I hope Toyota doesn't write the software by purpledinoz · · Score: 1

    After reading about the terrible software that came out of Toyota, which caused those fatal random unstoppable accelerations, I really hope Tesla will be writing the ECU software.

    1. Re:I hope Toyota doesn't write the software by Anonymous Coward · · Score: 0

      Actually, it's been handed over to Microsoft.
      Everyone is going to die!

    2. Re:I hope Toyota doesn't write the software by i+kan+reed · · Score: 4, Funny

      Hey, sometimes you just want to make a crash a little more literal.

      Or a race condition.

    3. Re:I hope Toyota doesn't write the software by blue+trane · · Score: 1

      Pretty sure those runaways were caused by morons who put their floormats over the accelerator, not software.

    4. Re:I hope Toyota doesn't write the software by kybred · · Score: 2

      Pretty sure those runaways were caused by morons who put their floormats over the accelerator, not software.

      Pretty sure they weren't (at least, not all of them).

      Having spent more than 18 months going in and out of the secure room to study Toyota's code, Michael Barr, CTO of the Barr Group, put together an 800-page report analyzing the 2005 Camry L4's software. On the witness stand, he walked a jury step by step through what the experts discovered in their source-code review.

      ...

      Barr testified that the source-code review indicated "both that task could die by the memory corruption, and that also that one of side effects of that would be that this -- for example, that task died, that many of fail safes would be disabled." But is it possible to prove that the experts' discoveries in that cloak-and-dagger source-code room would manifest themselves in a moving vehicle? How do we know how a car might react to malfunctions or an outright failure in Task X?

      ...

      However, we have confirmed in other vehicle testing that I'll talk about later, that if the incident begins with the peddle, [sic] brake peddle [sic] pressed at all, even lightly then the unintended acceleration will continue, potentially, forever unless the driver tries the risky thing of letting go of the brake while the car is driving away with him.

    5. Re:I hope Toyota doesn't write the software by blue+trane · · Score: 1

      Wikipedia notes that a 2011 report found the problems were all mechanical, not electrical. Barr's report seems to be a lot of "what if"s like a cosmic ray causing a bit flip.

    6. Re:I hope Toyota doesn't write the software by kybred · · Score: 1

      The EE Times article is from 2013. Barr analyzed the source code and found numerous problems:

      Having spent more than 18 months going in and out of the secure room to study Toyota's code, Michael Barr, CTO of the Barr Group, put together an 800-page report analyzing the 2005 Camry L4's software. On the witness stand, he walked a jury step by step through what the experts discovered in their source-code review. According to Barr's testimony, that review revealed:

              Software bugs that specifically can cause memory corruption

              Unmaintainable code complexity in Toyota's software

              A multifunction kitchen-sink Task X designed to execute everything from throttle control to cruise control and many of the fail-safes

              That all Task X functions, including fail-safes, are designed to run on the main CPU in the Camry's electronic control module

              That the brake override that is supposed to save the day when there is an unintended acceleration is also in Task X

              The use of an operating system in which there is no protection against hardware or software faults

              A number of other problems

      Single bit flips can also be caused by memory corruption, not to mention tasks crashing.

  3. My guess:Series Hybrid + recharge tech licensing by Isca · · Score: 4, Interesting

    The current Priuses and other Toyota offerings are parallel hybrids. That is, they have transmissions that directly drive the wheels using the ICE (Internal Combustion Engine).

    In a series hybrid, each wheel has it's own motor, and the ICE engine runs at a steady speed that is very efficient to generate electricity that is then used to recharge the batteries that are fed to the electric motors.

    A second part of my guess is that Toyota is licensing the recharging technology from Tesla, so that they can use the supercharger network as well. This way they can have a vehicle that can run 100% off of electricity only, but have a ICE engine that is available at any time to back that up (faster refueling, can go anywhere there is a gas station, etc.)

  4. I know! by Type44Q · · Score: 1

    So what exactly will this joint project be?

    Refitting the Model S with an Atkinson cycle engine so that its range doesn't suck...

    I kid, I kid! :p

    1. Re:I know! by Anonymous Coward · · Score: 0

      I get you're just being a smart ass, but I'm continually amused by the folks that think a 2-300 mile range between recharge/refuel "sucks". I've driven several ICE vehicles that only have that much range. Even my brand new 2013 vehicle only has 330 mi range.

      With a supercharger, you're only talking ~30 minutes stop per 3-4hr of driving. Not going to win you any cross country races for sure, but hardly "sucks". Most people can't safely drive more than 6-8 hours in a day anyway, so you're talking 1 30 minute refuel stop per day (4-500 miles traveled), or basically the same as an ICE after you factor in taking a piss, grabbing some coffee and stretching your legs.

  5. 2015 Pluggable Prius - Only 11 miles on EV Mode by Kevoco · · Score: 2

    www.toyota.com/prius-plug-in/

    Maybe Tesla can help them to bump that number up by a factor of 10 - otherwise, it almost a joke.
    (I drive a 2005 Prius and my wife drives a LEAF)

    1. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by madbrain · · Score: 2

      Agreed.

      And the Plug-in-Prius can't even drive 100% electric at freeway speeds.

      The "plug-in" part really is a joke on the Prius. It's definitely not worth the extra $5k over the regular Prius.

      FYI, I drive a Leaf and my husband drives a Prius.

      --
      -- Julien Pierre http://www.madbrain.com/blog
    2. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by ArcadeMan · · Score: 2

      So, you're Kevoco's wife?

    3. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by Medievalist · · Score: 3, Interesting

      And the Plug-in-Prius can't even drive 100% electric at freeway speeds.

      I frequently drive a plug-in Prius at 65mph in pure EV mode. It's really no big deal (unless you're one of those people who insist on stopping at the top of the on-ramp, so you have to stand on the accelerator to get up to speed.) I can hit 70 or more on a downhill with a tailwind :) .

      The "plug-in" part really is a joke on the Prius. It's definitely not worth the extra $5k over the regular Prius.

      Unless 90% of your driving is under ten miles round trip, and you don't like to rent cars in order to drive more than the 80 mile range you'd get from a 2014 Leaf, in which case the PiP pays for itself.

      FYI, I drive a Leaf and my husband drives a Prius.

      The Leaf is a great car if you get the 6.6 KWH on-board charger and a level 2 EVSE ($600 minimum). If you have only the level 1 EVSE and the lame charger, you're talking about a vehicle that literally spends far more of its time on the charger than on the road. Not worth the price for most people.

      But in any case you can't just buy a car without analyzing your needs - not even a gas car. It's even more important when you buy an EV or plug-in. You have to know what you'll be doing with it, and how long you plan to keep driving it. They aren't for everyone yet, although Tesla is working on changing that.

      My spouse drives a Leaf and gets three days driving from one charge; I drive the plug-in Prius and charge every day - sometimes two or three times a day. In firewood cutting season I spend more money on gas for my chain saws than I do for my car.

      One thing that does totally suck about both cars is the lack of a spare tire. This offends me so much I am trying to figure out how to mount spares on the rear bumpers! The regular Prius has a spare.

    4. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by drinkypoo · · Score: 1

      Didn't they have a plug-in kit for the original Prius that would let you do more than 11 miles on a charge? ISTR it voided one's warranty, but by now there must be original prii without warrantii.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    5. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by Anonymous Coward · · Score: 0

      I frequently drive a plug-in Prius at 65mph in pure EV mode. It's really no big deal (unless you're one of those people who insist on stopping at the top of the on-ramp, so you have to stand on the accelerator to get up to speed.) I can hit 70 or more on a downhill with a tailwind :) .

      That is quite impressive, considering the plug in prius goes out of EV mode at 100 kph, which is 62 mph. You may start in EV mode, but your gas engine will kick in before you get to 65 mph.

    6. Re:2015 Pluggable Prius - Only 11 miles on EV Mode by Medievalist · · Score: 1

      Perhaps that's what the spec sheet says, but my car will hit 65 in pure EV on any given day (did it twice yesterday) and it will go higher in hot weather (as long as I'm going downhill).

      I always figured the hot weather factor was because at high speed it wants to spin the gas engine with all valves open, and it needs to be properly hot to do that.

      But hey, maybe I got one with improper control calibration - all I can tell you is what I'm seeing empirically!

  6. Tesla/Toyota by turkeydance · · Score: 1

    my inner 7-year-old wants this Transformer.

  7. Anything like 'Slashdot MAY post a dupe'? by Anonymous Coward · · Score: 0

    Or is it more akin to "Slashdot MAY hire real editors"?

    Fucking pathetic hypothetical click-bait headlines.

    Slashdot has jumped the shark, and the shark turned around, ate it, digested it, and shit it back out. As Beta.

  8. What stance? by drinkypoo · · Score: 2

    Given Toyota's stance on electric cars, Musk's comment is a bit confusing.

    So I followed the relevant link in TFS and the only substance there is the following: Toyota's Global R&D Chief Mitsuhisa Kato [...] said: "The cruising distance is so short for [electric cars], and the charging time is so long ... At the current level of technology, somebody needs to invent a Nobel Prize-winning type battery." Somebody needs to for what? Certainly not for Toyota to sell an EV, because they've done that already. But I'm not really clear on what Toyota's stance on EVs is, except that the battery technology is not where they'd like to see it. That's everyone's stance on EVs.

    Here's my prediction: Either Tesla is going to provide the powertrain for another Toyota EV, possibly a RAV4, or Toyota is going to provide the car (perhaps sans plastics and fenders) for Tesla's upcoming cheaper car. I'd like to see such a car made of Aluminum, but Tesla has hinted that the next car or two won't be made of so much of it, and Toyota is generally allergic to it for all but top-end models.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    1. Re:What stance? by rasmusbr · · Score: 1

      IIRC Toyota's stance is that batteries are never going to get good enough to be the main energy storage in a (premium) car and that all-electric cars will run on hydrogen fuel cells.

    2. Re:What stance? by drinkypoo · · Score: 1

      IIRC Toyota's stance is that batteries are never going to get good enough to be the main energy storage in a (premium) car

      Well, Tesla has conclusively proven them wrong, at least for a portion of the market which includes the RAV4 EV. And if they get to move the goalposts to premium car, that leaves them with the option of making another RAV4 EV, for example.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  9. One every 8.5 days, actually by SuperBanana · · Score: 1

    There aren't "stories every day" about Tesla, but every time there's a Tesla story, there is someone bitching and moaning about "all" the Tesla stories.

    There have been 30 stories since January 1st - that equals about one story every 8.5 days.

    You can count yourself, if you like. They do get clustered a bit, probably because when one piece of Tesla news hits, everyone starts paying more attention to Tesla related topics.

    http://slashdot.org/tag/tesla

    1. Re:One every 8.5 days, actually by dgriff · · Score: 1

      Fair enough, I've just started reading Slashdot again and skimming recent stories they seem to keep popping up. And this is the only place I ever see them.

  10. Nananananananana Elon! by Anonymous Coward · · Score: 0

    The Leader is good,
    the Leader is great,
    we surrender our will as of this date!

    Ya'll gonna feel stoooopid you didn't sign on earlier when he buys out the Raelians.

  11. Spelling nazi strikes again. by 140Mandak262Jamuna · · Score: 1
    Radius : Radii == Prius : Prii

    No??

    --
    sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
    1. Re:Spelling nazi strikes again. by Anonymous Coward · · Score: 0

      It's actually Priora --however, Toyota ran a popularity vote on the plural of Prius and the masses decided on Prii.

  12. Tesla powered Toyota FT-1 by Anonymous Coward · · Score: 0

    Watch for Toyota's next halo electric supercar, the FT-1 (Supra replacement) to be powered by Tesla.

  13. The end result of the two by Anonymous Coward · · Score: 0

    Would be an electric car that has a tendency to suddenly accelerate and spontaneously combust. If only Ford was involved in the consortium, then it will also explode upon any rear impact.

  14. Bad definitions of series & parallel hybrid! by Anonymous Coward · · Score: 0

    Those terms became obsolete as soon as the Toyota Prius was built. Neither the Toyota hybrid system nor any other currently shipping hybrid from a major auto company fits in either category.

    You see, before the Insight & Prius, people only built two kinds of hybrids.

    When the gas engine and electric motor were connected in series, they both ran all the time. You could not just spin the crankshaft without spinning the rotor, and vice versa, because the shafts were coupled together in series.

    When the gas engine and electric motor were connected in parallel, you could run either one alone, but you couldn't add their power together - the max HP and torque were determined by the strongest of the two, because Toyota hadn't invented their clever planetary gear transmission yet.

    Modern hybrids use both systems at will. For example the Toyotas will spin their gas engines at high speed with all the valves wide open and no gas to the injectors under some circumstances, which is a series hybrid trick. But it can also add the torque of the electric motor to that of the gas engine if you slam the accelerator to the floor from a dead stop, and that's a parallel hybrid trick.

    The terms you used are obsolete. Modern hybrids are both, or neither.

  15. I'm hoping for a rocket car by Anonymous Coward · · Score: 0

    Hey, it's time to get serious about this singularity thing if we're going to do it at all

  16. Re:Bad definitions of series & parallel hybrid by netsavior · · Score: 2

    Parallel = electric motor and gas motor are both connected to the drive train.
    Series = only the electric motor is connected to the drive train.
    Prius is a "power split" or a "series parallel" hybrid, which is a bullshit term that means "we are special and not just a parallel hybrid"

    In the modern colloquial terminology, slang usage seems to to be
    "Series" = "range extended electric vehicle" or "generater in the trunk"
    "Parallel" = "doesn't work without gasoline"

    In general, people don't care HOW a series/parallel/power split/monkeyass hybrid works... they just care about the "doesn't work without gasoline" part, which is the tough pill to swallow with modern "totally not parallel" hybrids.

  17. Re:My guess:Series Hybrid + recharge tech licensin by drinkypoo · · Score: 1

    In a series hybrid, each wheel has it's own motor,

    Not necessarily. One might reasonably include a differential fore and aft and use just a pair of motors. The problem with having one motor per wheel is that you can never transfer more than 1/4 of the power to any given wheel. With a system with two motors and two differentials you still eliminate transmission loss, while the diff (coupled with ABS) provides the opportunity to transfer up to 1/2 of the power to one wheel. That makes for less need for torque reduction during acceleration when wheel slip is detected. Instead, the power is transferred to the wheel with traction. The end result may well be the ability to use less total motor capacity. Open diffs are cheap and EVs are already heavy, plus this reduces system complexity.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  18. My money is on an electric Camry by damn_registrars · · Score: 1

    Tesla likes to go for flashy and exciting vehicles. Toyota likes to build boring economy cars for the masses. I bet Toyota is eying the gigafactory as a source for batteries for a new all-electric Camry (or similarly bland family sedan). They should be able to use scale to bring down the cost of an all-electric Camry, the question then will be if sucking all the fun out of it will make a notable difference in battery life or not.

    --
    Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.
    1. Re:My money is on an electric Camry by Anonymous Coward · · Score: 0

      Yeah, because Toyota never built a Lexus. They also never built the LFA. They aren't currently building the RC-F. Or the IS350.

      You're abundantly derp.

    2. Re:My money is on an electric Camry by Anonymous Coward · · Score: 0

      100% correct. They never built any of those. You should work on your spelling btw. "derp" is not a word.

    3. Re:My money is on an electric Camry by damn_registrars · · Score: 1
      Wow, a Toyota fanboy. What a surprise...

      Yeah, because Toyota never built a Lexus

      By sales volume Lexus cars are contenders for the least interesting on the road. The ES and RX are the top selling lines by a long shot and neither have more personality than a box of generic wheaties.

      They also never built the LFA

      The LFA might as well not exist, it is not only extraordinarily low in volume to the point where >>99% of the world's population will never see one in person, but it also shares no parts with any other car made by Toyota. It is an exercise in what they can do when they commit enough engineers to a case.

      They aren't currently building the RC-F

      Again, who cares.

      Or the IS350.

      The IS350 is a cold and dull attempt to compete with the BMW 3 series.

      --
      Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.
  19. Supplying batteries for the 70mpg Fit Hybrid? by brentonboy · · Score: 1

    Seeing as Honda just scrapped their Fit EV and the Insight, and the popularity of the Fit Hybrid in Japan, they might be scaling up to release a Hybrid Fit in the US. Things would fly off the shelves.