this post was submitted on 18 Oct 2024
222 points (99.6% liked)
traingang
22597 readers
35 users here now
Post as many train pictures as possible.
All about urbanism and transportation, including freight transportation.
Home of train gang
:arm-L::train-shining::arm-R:
Talk about supply chain issues here!
List of cool books and videos about urbanism, transit, and other cool things
Titles must be informative. Please do not title your post "lmao" or use the tired "_____ challenge" format.
Archive links for reactionary sites, including the BBC.
LANDLORDS COWER IN FEAR OF MAOTRAIN
"that train pic is too powerful lmao" - u/Cadende
founded 4 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Honest question, why not short the motors so that internal resistance is increased massively or set the motors to coast or apply passive power to prevent overcharging or engage the actual brakes fully to avoid this? I get that solution would destroy the tires, but that's an easier fix than the entire powertrain. How do other EVs avoid the problem?
I'm not sure how other EVs do it, but the Nissan Leaf can be put into neutral, since it uses a single motor under the hood. I'm sure putting motors in the wheels complicates things, but I would think the coast idea would work.
You can put teslas in a Tow mode too but that would mean the owner was aware a tow truck was coming to turn the car on and set it on tow mode. If they didn't, the car needs to be on skates and needs to be lifted up entirely where no wheels can spin.
I guess the other difference is that the Leaf is front wheel drive only, so as long as the truck lifts the front wheels there's no risk to anything going wrong.
Personally I like it when EVs aren't too different from regular cars, the leaf is basically a Nissan Rogue, but instead of a gas engine there's an electric one, and instead of a gas tank there's a battery pack.
If so, why not turn on the car alarm and put the vehicle into tow mode on detecting an overcurrent?
In fact, Teslas have very loud external speakers in lieu of horns. They could just say "you are towing the car wrong. Please stop and consult the manual" on repeat at 100 decibels
Not a bad idea. Shouldn't be too hard to program in.
No truer words have been spoken by someone who has never worked on the system in question. Knowing Tesla, there is probably some arcane bullshit in the code preventing this from happening.
Just a few if else statements, how hard could it be amirite