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[-] aaaaaaadjsf@hexbear.net 56 points 7 months ago* (last edited 7 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.

[-] Posadas@hexbear.net 37 points 7 months ago

You've heard of rng.

Now it's time for randomized breaking distance.

[-] ProfessorAdonisCnut@hexbear.net 19 points 7 months ago

Just throw the battery into the ocean to keep it cool

[-] InternetLefty@hexbear.net 14 points 7 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?

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

Do you want it to over charge an already hot battery and start a fire too?

[-] CascadeOfLight@hexbear.net 28 points 7 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.

[-] radiofreeval@hexbear.net 13 points 7 months ago
[-] aaaaaaadjsf@hexbear.net 11 points 7 months ago

Lmao, Tesla made his rear left brake for the Australian GP. New sponsorship!

[-] djphdk@hexbear.net 21 points 7 months ago

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

Truly a pinnacle of engineering.

[-] Flyberius@hexbear.net 20 points 7 months ago* (last edited 7 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@hexbear.net 19 points 7 months ago

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

[-] aaaaaaadjsf@hexbear.net 13 points 7 months ago* (last edited 7 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.

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@hexbear.net 19 points 7 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@hexbear.net 10 points 7 months ago* (last edited 7 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.

[-] booty@hexbear.net 9 points 7 months ago

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

[-] keepcarrot@hexbear.net 9 points 7 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@hexbear.net 4 points 7 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

[-] redtea@lemmygrad.ml 6 points 7 months ago

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

this post was submitted on 03 Apr 2024
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