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Tesla is building new drive unit production lines at the Gigafactory

Discussion in 'Model 3' started by dgindio, Oct 15, 2016.

  1. dgindio

    dgindio dgindio

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  2. calisnow

    calisnow Active Member

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    ...
     
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  3. Sparky22

    Sparky22 Member

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    Make sense to me, anything to speedup the process.
     
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  4. Twiglett

    Twiglett Single pedal driver

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    My flight of fancy says - who is to say that the battery pack doesn't also include the drive unit?
    Model S has a "quick change" battery, but does the Model ☰ need that?
    It could almost be like the engine/transmission unit in an ICE.
    Would also really speed the installation process if both drive units and battery went in together.
     
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  5. Garlan Garner

    Garlan Garner Active Member

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    I wouldn't mind having a lego Tesla.

    I could swap out parts myself.
     
  6. Twiglett

    Twiglett Single pedal driver

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    what if the intent is for a "traction pack" to leave the gigafactory as a battery pack and drive units as a single unit.
     
  7. timk225

    timk225 Member

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    If people are referring to the battery pack and drive unit being attached to each other and leaving the gigafactory that way, I don't think so. In the Model S, the battery is bolted to the frame separately, and so is the drive unit. Given their locations with a couple feet between them, I don't think there's any practical way to connect them.
     
  8. ecarfan

    ecarfan Well-Known Member

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    We know that one of Elon's goals with the Model 3 is to design it to be easier and cheaper to manufacturer. It seems possible that the 3 design is such that the entire drivertrain could be assembled at the Gigafactory as a single unit and then shipped to Fremont for installation into the chassis.

    I say "possible". I am only guessing.
     
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  9. Twiglett

    Twiglett Single pedal driver

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    That's where I was going with that thought.
    Why build battery and drive units in one place and ship them both to CA.
    Just because the Model S isn't like that doesn't mean the ☰ can't

    The other point about the Model S design was that the pack would be quickly replaceable in the battery swap stations. But that seemed to solve a problem that nobody had.
    Without that requirement, the all-in-one may work - it seems to work for most FWD ICE cars where the production line installs the engine/transmission/suspension as a single unit.
     
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  10. Garlan Garner

    Garlan Garner Active Member

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    That's indeed possible. I can see that effort making the production process much simpler.
     
  11. JeffK

    JeffK Active Member

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    Nice! Hopefully that means lower cost performance motors
     
  12. Garlan Garner

    Garlan Garner Active Member

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    Well, As we all know - all you have to do to a robot is feed it electrons and stuff like that and it will keep working without complaining about anything. How simple.
     
  13. RDoc

    RDoc S85D

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    Cell phones have gone to built in batteries, so why not cars?
     
  14. HankLloydRight

    HankLloydRight Fluxing

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    Ever since the GF tour, I was thinking that Tesla was secretly building an entire M3 production line out there. **

    Just like the Japanese did with the duplicate "machine" they built in the movie "Contact".




    ** Yes, I'm aware that they just submitted plans to greatly expand the Fremont factory.
     
  15. Watts 4 Me

    Watts 4 Me Member

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    Didn't Elon say they planned on building the model 3 at the GF? I believe he said it after the GF tour.
     
  16. aronth5

    aronth5 Long Time Follower

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    No he never said that.
    What you may be referring too is when he said he expected the next gigafactory would have raw battery material enter on one end and a finished car would come out the other end.
     
  17. ecarfan

    ecarfan Well-Known Member

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    No he did not say that.
     
  18. brucet999

    brucet999 Active Member

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    Two good reasons NOT to have DU integral with battery;
    1. DU has to withstand considerable torque forces, so it needs a very strong attachment to the car's frame. If attached to the battery pack, the pack would have to be massively re-inforced to withstand that force.

    2. What do you do when a DU needs replacing, remove the battery pack too?
     
  19. Twiglett

    Twiglett Single pedal driver

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    1. I was under the impression that the skateboard was already reinforced and vital part of the body structure. They certainly mention it as contributing a great deal to the crash protection, so I'm making the assumption that its already part of the frame.
    2. Just because they build the pack/drive into one unit doesn't mean that they can't replace a drive unit.
     
  20. JeffK

    JeffK Active Member

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    #20 JeffK, Oct 18, 2016
    Last edited: Oct 18, 2016
    [​IMG]

    The gigafactory simply gives Tesla space for robotics and the ability to experiment with varying production line setups to get the best efficiency while giving them more space for Model 3 production in Fremont. This has nothing to do with directly attaching a motor to the battery which would be a safety nightmare. As you can see from the pic they are separately attached to the frame.
     
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