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Tesla Model 3 Torn Down, Hacked and Set On a Dynamometer, Exposing Unusual Tech Details (electrek.co)

Rei writes: With an estimated 8,670 Model 3s delivered, a race is on as competitors and owners work to figure out its limits and explore the tech behind it. Many-time Tesla teardown expert "Ingineerix" has posted a series of videos and discussed his findings on Reddit. Among them: what appears to be the industry's first switched reluctance motor, a massive "smuggling compartment" allocated for a future front-wheel motor, no physical fuses (all solid-state), significant wiring harness length reductions via the use of multiple body controllers, a swappable crash energy absorption system, a liquid-cooled compute unit, and redundant controllers for all safety-related systems. He followed up by posting a screenshot of the car tricked into "factory mode" to reveal its internal specs, including a 1200A max discharge current, 370kW max discharge power, and a 76 kWh pack with 72,5kWh usable. Meanwhile, Munro and Associates tore down a Model 3 for an undisclosed, "not Tesla" client, releasing a video criticizing its build quality and for difficulty in accessing the HV cables in the event of an accident (Munroe's claims were dismissed by Ingineerix). Meanwhile, engineers from German automakers were extremely impressed by what they found during their teardown -- particularly the power electronics system, which they described as "compact, expandable, fully integrated, modular, easily accessible, well-protected, reasonably priced and astonishingly clever in many details." Other owners have been putting their cars on dynamometers to measure their power. Drag Times suffered some skid and measured a conflicting 281 / 327.6 hp with 552 lb-ft torque. Contrarily, Tesla Repair Channel found consistent readings around 250hp when starting from 30mph, but consistently around 390 hp when starting from 10mph. The reason for the discrepancy is not yet clear.

5 of 227 comments (clear)

  1. Re:One thing Musk seems really good at is hiring by DRJlaw · · Score: 4, Insightful

    Or it might be just that he is spending money on improving things that have been done before, and you are really impressed by it. Tesla isn't the first electric car (that was *gasp* 180 years ago!) or shooting rockets into LEO (*gasp* that was 61 years ago). And I hate to break it to you: people have actually made tunnels before (I know: hard to believe!)

    So by "things that have been done before," you mean way overbroad generalizations of technology, complemented by ignoring the "improv[ed] things" that apparently have not been done before?

    Analogously, every word that you've typed has been used before, and English paragraphs are so old that I guess we shouldn't be impressed by anything quoted above.

  2. Re:One thing Musk seems really good at is hiring by DRJlaw · · Score: 5, Insightful

    SpaceX is even more amazing in terms of tech, getting stuff working like vertical landings that seemed like it was going to remain as science fiction, while also seeming to be very reliable tech as far as the rocket industry goes which is its own feat (even in modern times you still see rockets exploding on launch).

    Tesla isn't the first... shooting rockets into LEO (*gasp* that was 61 years ago).

    Nothing "generalized" about it.

    Sure - changing vertically landing a rocket from 200 km into shooting rockets into LEO isn't an overgeneralization at all. Never mind that the booster is never in an orbit.

  3. Re:Nurburgring fiasco. by R3d+M3rcury · · Score: 4, Insightful

    [...] but what about towing a two-axle mobile stable with two horses in it, steep uphill?

    I don't own any horses.

    You're right--electric cars in general may suck towing heavy trailers up steep hills. So if that's something you're doing a lot of, I would not recommend buying a Tesla.

    Now the other 99% of us who don't tow heavy trailers up steep hills, we'll be quite happy. And you'll be quite happy with your ICE car that does that towing with no problem.

  4. Re:Nurburgring fiasco. by FrankSchwab · · Score: 5, Insightful

    >>> meaningless until Tesla cars can lap the world standard Nurburgring Circuit at speed.
    Can't remember the last time I did that.

    >>> what about towing a two-axle mobile stable with two horses in it, steep uphill?
    I'm pretty sure that the bog-standard BMW 3-series wouldn't be particularly happy about that task either. I'm not quite sure where you'd mount the 5th-wheel hitch, either. That's why there are heavy-duty pickup trucks in the world. I guess we can revisit your challenge once the Tesla Semi is hauling 80,000 pounds around the US.

    Is there a reason that you believe a mid-sized sedan should both lap the Nurburgring at speed, and pull a horse trailer?

    --
    And the worms ate into his brain.
  5. Re:Re, the motor: by sl3xd · · Score: 4, Insightful

    Indeed. None of the Tesla owners I know are wealthy.

    I live in a ~150k/house neighborhood. I have neighbors making ~$50k/year driving a $86k Ford Super Duty. The base model Tesla Model S or X are less than that.

    To say nothing of the guys driving Lexus, BMW, Mercedes, Infiniti, Cadillac, Jaguar, etc.

    Seriously... some people just really really like their cars.

    --
    -- Sometimes you have to turn the lights off in order to see.