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https://twitter.com/REbr0/status/1775314173645250673

  • aaaaaaadjsf [he/him, comrade/them]
    ·
    edit-2
    8 months ago

    Wait so the braking force applied by the regen decreases if the vehicle gets hot?

    Isn't that extremely dangerous? Imagine while driving normally, you know that the car will slow down at a certain rate if you lift the throttle. Now that rate of deacceleration while off throttle changes depending on the temperature of the vehicle. That kind of inconsistency leads to accidents, as shown here.

    • InternetLefty [he/him]
      ·
      8 months ago

      Interestingly enough, hydraulic brakes will also stop working the same way when the temperature of the fluid reaches the boiling point, which reduces the braking pressure significantly. Not a problem in most consumer vehicles in most situations, though. I'm assuming that the regenerative braking is either on or off, and might change quickly. It would be ideal if the mechanical brakes phased in as the regenerative braking phased out - I wonder if that's what they intended to do here, but didn't get it working?

      • CascadeOfLight [he/him]
        ·
        8 months ago

        susie-laugh God, Teslas are truly the gift that keeps on giving, the pinnacle of car technology. Yes please, I would like my car to catch fire when I brake.

      • djphdk [he/him]
        ·
        8 months ago

        Consistent braking or no battery fire; can't have both.

        Truly a pinnacle of engineering.

      • Flyberius [comrade/them]
        ·
        edit-2
        8 months ago

        I think we just expect things to work properly. Maybe a mechanical element that helps normalise these fluctuations.

        But yeah, the car bursting into flames and killing the occupant would be fucking hilarious.

      • Beaver [he/him]
        ·
        8 months ago

        The bus cybertruck can't slow down under 50mph or else it will explode

      • aaaaaaadjsf [he/him, comrade/them]
        ·
        edit-2
        8 months ago

        The car's computer should phase in the mechanical disc brakes as the regen braking force decreases to maintain a consistent deacceleration rate while off throttle or braking.

        • fuckwit_mcbumcrumble@lemmy.dbzer0.com
          ·
          8 months ago

          Tesla explicitly doesn’t mix brakes and regen because the transition between the two is always awful. Instead they use confusers to measure how much regen is needed at any given moment and adjusts the resistance based on that.

          Between hot/full battery, computers being stupid, and their owners even dumber that’s probably how this dumbass hit a pole.

          • alexandra_kollontai [she/her]
            ·
            8 months ago

            I've driven a non-Tesla electric car and the regenerative and mechanical braking both worked great and didn't have a startling transition between them. It just worked like I thought the brake pedal should.

          • aaaaaaadjsf [he/him, comrade/them]
            ·
            edit-2
            8 months ago

            computers being stupid, and their owners even dumber

            After watching some "testing out the self driving features of my Tesla" videos on YouTube, yeah I'd agree with that being the cause of most Tesla related accidents like this. Tesla owners and their cars seem like a terrible combination safety wise.

      • keepcarrot [she/her]
        ·
        8 months ago

        Even in my fake stormworks designs, I have a separate battery/capacitor specifically for regenerative braking that gently bleeds back into the system. Also the regen brakes have their own separate clutch, but that's because I couldn't figure out how to do it otherwise

        • peeonyou [he/him]
          ·
          8 months ago

          i can't do a goddamned thing in that game, but i could probably still design a better machine than this piece of crap teslamobile

      • booty [he/him]
        ·
        8 months ago

        Yes, that actually is exactly what I want. Because I'd never be dumb enough to get in a tesla lmao

    • redtea@lemmygrad.ml
      ·
      8 months ago

      But steel canisters are known for keeping a constant temperature in sunlight. Constantly increasing.