this post was submitted on 03 Apr 2024
170 points (100.0% liked)

chapotraphouse

13546 readers
808 users here now

Banned? DM Wmill to appeal.

No anti-nautilism posts. See: Eco-fascism Primer

Gossip posts go in c/gossip. Don't post low-hanging fruit here after it gets removed from c/gossip

founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 56 points 7 months ago* (last edited 7 months ago) (5 children)

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.

[–] [email protected] 37 points 7 months ago

You've heard of rng.

Now it's time for randomized breaking distance.

[–] [email protected] 19 points 7 months ago

Just throw the battery into the ocean to keep it cool

[–] [email protected] 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?

[–] [email protected] 13 points 7 months ago (7 children)

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?

[–] [email protected] 28 points 7 months ago (1 children)

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.

[–] [email protected] 13 points 7 months ago (1 children)
[–] [email protected] 11 points 7 months ago

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

[–] [email protected] 21 points 7 months ago

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

Truly a pinnacle of engineering.

[–] [email protected] 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.

[–] [email protected] 19 points 7 months ago

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

[–] [email protected] 13 points 7 months ago* (last edited 7 months ago) (1 children)

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.

[–] [email protected] 10 points 7 months ago (2 children)

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.

[–] [email protected] 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.

[–] [email protected] 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.

[–] [email protected] 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

[–] [email protected] 9 points 7 months ago (1 children)

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

[–] [email protected] 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

[–] [email protected] 6 points 7 months ago

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