Tesla big rig fire

   / Tesla big rig fire #22  
A lot of cynicism in this post. Aren’t you guys all buying into the pixie dust Tesla’s put out when they catch fire?

So I’m not sure I understand, the truck wrecked and caught fire or it caught fire and then wrecked.

Tesla may have all the data, then again not much left of the tractor after the fire.

I have wondered if the computer does a sort of burst transmission of data directly after an impact is detected.

Most non complete loss Tesla accidents Tesla has a huge amount of data on what happened when, and whether it was driver input or the autosteer/FSD.
 
   / Tesla big rig fire #23  
I tell my kids There are big problems, and then there are little problems:

Another Tesla story, same day. While that truck burned between Sacramento and Reno, this Tesla went into Folsom Lake 50 mile west of there.

(he backed in and it floated to where we see it.)

Oops.

yb6syyvs8mjd1.jpeg

.

Oh no!
 
   / Tesla big rig fire #24  
I tell my kids There are big problems, and then there are little problems:

Another Tesla story, same day. While that truck burned between Sacramento and Reno, this Tesla went into Folsom Lake 50 mile west of there.

(he backed in and it floated to where we see it.)

Oops.

From a Reddit post:
My buddy was there and saw the whole thing. He was backing in and went too far. Started floating and it spun the Tesla around. Making it look like he drove into the lake

This is not a Tesla problem.
 
   / Tesla big rig fire #25  
Once a lithium battery starts to overheat it produces its own oxygen to continue to cause the flare up to get hotter and hotter. You can't use water to put out the flame of a lithium battery burning, you can only cool it down to slow the self production of oxygen to keep the heat away from other things that might catch on fire.
 
   / Tesla big rig fire #26  
   / Tesla big rig fire #28  
Well at least it wasn't in a residential area where people would need to evacuate thier homes.
It's kind of an residential area mixed with industrial area. They were advising for people to close their windows. Those fumes were getting pretty nasty.

It did start on a Tesla, apparently it was charging at the time it happened. Doesn't say in the article I shared but they said in the TV.
 
   / Tesla big rig fire #29  
apparently it was charging at the time it happened.
??????????

Last I saw the CHP was investigating if the driver fell asleep while the truck was rolling down the freeway ....

At the Laing road offramp from Fwy 80, I'm pretty sure you are far away from any recharging stations. I don't own and EV and cannot say for sure, but I sure haven't seen any in that area and I drive it quite frequently.
 
   / Tesla big rig fire #30  
??????????

Last I saw the CHP was investigating if the driver fell asleep while the truck was rolling down the freeway ....

At the Laing road offramp from Fwy 80, I'm pretty sure you are far away from any recharging stations. I don't own and EV and cannot say for sure, but I sure haven't seen any in that area and I drive it quite frequently.

Different conversation
 
   / Tesla big rig fire #31  
Two things being discussed. One a Tesla big rig and another where a car caught fire in a parking garage.
 
   / Tesla big rig fire #32  
Once a lithium battery starts to overheat it produces its own oxygen to continue to cause the flare up to get hotter and hotter. You can't use water to put out the flame of a lithium battery burning, you can only cool it down to slow the self production of oxygen to keep the heat away from other things that might catch on fire.
If you can get enough cooling on the pack the cell burning will burn out eventually and the neighboring ones won't catch. (We're saying the same thing) The trouble is getting enough water/foam inside the sealed armored battery case to make this happen, spraying the outside won't do it. Procedures are evolving, I've seen an experimental spike that will pierce the pack from below and carry water directly inside. That could work or it could generate a steam explosion where the case ruptures suddenly.

There are alot of different ways this could evolve. Nothing is standardized, every manufacturer has their own solutions. At this point letting it burn is quite valid.
 
   / Tesla big rig fire #34  
Li-Ion batteries when burning, produce their own oxygen to keep burning and no amount of water will extinguish them and that is a fact, not fiction,
 
   / Tesla big rig fire #35  
Now it is being reported that Cal Fire brought in air assets to fight the fire ...

 
   / Tesla big rig fire #38  
Now it is being reported that Cal Fire brought in air assets to fight the fire ...

Plowhog is that an upgrade where he may have been passing a slow truck?

Most of that stretch is steep uphill, climbing from the Valley (sea level) to 7,240 ft Donner Summit in 75 miles.

This local news video (below) is a good description at the time. There are red retardant traces on the pavement and in the trees from the air drop. That is dry high-risk country.

The news video was made during the all-day traffic halt. It includes a CHP representative saying there's no indication of DUI but investigation will look at the possibility that the driver fell asleep.

 
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   / Tesla big rig fire #39  
The company my wife retired from had a Tesla rig as part of the proof of concept.

Much different than typical OTR trucking. Mostly delivery of product within 200 miles or so of a plant...and in Texas, not mountains.

They didn't have any problems, but way too expensive to replace all of their tractors with Tesla ones.
 
   / Tesla big rig fire #40  
Plowhog is that an upgrade where he may have been passing a slow truck?
The accident was reported at Laing road. That is a mild to moderate upslope, not bad. Two lanes eastbound with shoulders on each side. Trucks are usually running full speed at Laing road because the upslope has just started after a pretty long downslope section that lets them build speed. I know the truck speeds are good in that area because when I blew a tire on a travel trailer there it was quite hazardous being in the shoulder with high speed big rigs passing close by.

I went back and looked at the very first picture in post #1. Truck buried off road into the forest, only the rear visible, and no skid marks and no debris indicating a collision with someone else. So I can understand the speculation, also at 3am time, that falling asleep might have been a factor.

I have not seen any report on whether this truck was in service hauling goods or if maybe it was a "test" Tesla truck. I have seen a few Tesla trucks transiting the Sierras, but only a few.
 

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