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I wonder this too. Military jets have a "RESCUE" lever by the canopy to disarm the ejection seats. I wonder why cars don't have something standard and simple

I wonder this too. Military jets have a "RESCUE" lever by the canopy to disarm the ejection seats. I wonder why cars don't have something standard and simple like that. If every car model needs unique training on what secret cuts to make in what order, that's a fail.

toomuchtodo 7y ago
Tesla vehicles disengage the high voltage contactors when an accident is detected. You still don't want to cut through parts that can't be de-energized (ie do not push through the floor pan into your energy storage system). There is also a "first responder cut loop" which does the same, similar to the mentioned "RESCUE" lever on an aircraft cockpit.
- avs733 7y ago
  >Tesla vehicles disengage the high voltage contactors when an accident is detected. Great! Is there a visual indication that has occurred (see for example F1: https://www.racecar-engineering.com/tech-explained/f1-2014-explained-what-are-the-lights-on-the-roll-hoop-for/ https://www.racecar-engineering.com/tech-explained/f1-2014-e...). If not, >You still don't want to cut through parts that can't be de-energized (ie do not push through the floor pan into your energy storage system). You're right! That's why these things are standardized and labeled (http://www.solotogrouptravel.com/wp-content/uploads/2014/01/Sign-on-Peru-Airplane.jpg http://www.solotogrouptravel.com/wp-content/uploads/2014/01/...) >There is also a "first responder cut loop" which does the same, similar to the mentioned "RESCUE" lever on an aircraft cockpit. The point isn't the function it's the labeling. As noted in other discussions (https://jalopnik.com/tesla-model-3-teardown-by-engineering-firm-reveals-qual-1822678045 https://jalopnik.com/tesla-model-3-teardown-by-engineering-f...) of the model 3...there are no externally visible markers of where to cut until you open or remove panels and the markings themselves are unclear. The front first responder loop requires a 12V battery be connected to the vehicle if the frunk won't open under vehicle power. None of this is about whether or not such systems exist...all of this is about the design and indication necessary of those systems in emergency situations. All F1 cars have different manufacturers...but they all have the same iconography and processes for disarming potentially energized systems (e.g., put the car in neutral, put out a fire, check if car is electrically safe). That commonality means it is easy to train first responders AND for first responders to know what to/not to do in an emergency.
  - deleted 7y ago
    [deleted]
  - brooksgarrett 7y ago
    I'm willing to bet my Hurst spreaders will get the frunk open sans battery. If you're cutting the car, it's already totaled and limiting damage to the frunk would be the last concern on my mind.
    - mrpippy 7y ago
      Yeah, prying the frunk open and cutting the battery cables is the first thing they do in the video
      - brooksgarrett 7y ago
        I went back and rewatched it. I completely forgot they forced it. I first saw this a couple months ago when our TC used it for extrication refresher. I have to admit, even though it is staged and the car is completely intact, watching those guys is money. Super smooth execution. The way he handled the halligan solo to create the frunk gap was pleasing to watch.
    - avs733 7y ago
      You willing to apply them to something that you are trying to open specifically because you are concerned about the electrical state of the car? Your spreaders will open it like a tin can...but did Tesla rev the location in real time during manufacturing?
HeWhoLurksLate 7y ago
I don't think I want to have a "kill power" switch on the side of my vehicle where a random up-to-no-good kid (or adult) can kill power to my car while I'm driving it. Disclaimer: I ride a bike.
- nexuist 7y ago
  For what it's worth, there actually are kill switches on the sides of the ICE buses that service my university campus. Opening the little hatch and pushing the button disconnects power from the battery and kills the engine. I imagine it's useful in situations where the engine has caught fire and you need to stop fuel flow ASAP. I've never heard of people abusing it, probably because everyone on board the bus including the driver could easily ID the wrongdoer. Of course, private personal vehicles are a different story.
Animats 7y ago
Most US electric cars now have a cable marked with a yellow and red first responder cut point tag. You can see that briefly in the video. You cut the cable on both sides of the tag, so that the remaining ends can't touch, and the battery is isolated. There are where-to-cut guides.[1] [1] https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/EV_SafetyTraining/EV%20EFG%20Classroom%20Edition.pdf https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/EV_Sa...
- imglorp 7y ago
  I think you also want to disable unfired airbags after the car has stopped crashing. There are cases where rescuers leaned in on passenger side, putting pressure on seat, and had the airbag deploy on them. I think there's other concerns that cutting door sills can cause deployments. Oh and killing the engine would be good too.

toomuchtodo 7y ago

Tesla vehicles disengage the high voltage contactors when an accident is detected. You still don't want to cut through parts that can't be de-energized (ie do not push through the floor pan into your energy storage system). There is also a "first responder cut loop" which does the same, similar to the mentioned "RESCUE" lever on an aircraft cockpit.

avs733 7y ago
>Tesla vehicles disengage the high voltage contactors when an accident is detected. Great! Is there a visual indication that has occurred (see for example F1: https://www.racecar-engineering.com/tech-explained/f1-2014-explained-what-are-the-lights-on-the-roll-hoop-for/ https://www.racecar-engineering.com/tech-explained/f1-2014-e...). If not, >You still don't want to cut through parts that can't be de-energized (ie do not push through the floor pan into your energy storage system). You're right! That's why these things are standardized and labeled (http://www.solotogrouptravel.com/wp-content/uploads/2014/01/Sign-on-Peru-Airplane.jpg http://www.solotogrouptravel.com/wp-content/uploads/2014/01/...) >There is also a "first responder cut loop" which does the same, similar to the mentioned "RESCUE" lever on an aircraft cockpit. The point isn't the function it's the labeling. As noted in other discussions (https://jalopnik.com/tesla-model-3-teardown-by-engineering-firm-reveals-qual-1822678045 https://jalopnik.com/tesla-model-3-teardown-by-engineering-f...) of the model 3...there are no externally visible markers of where to cut until you open or remove panels and the markings themselves are unclear. The front first responder loop requires a 12V battery be connected to the vehicle if the frunk won't open under vehicle power. None of this is about whether or not such systems exist...all of this is about the design and indication necessary of those systems in emergency situations. All F1 cars have different manufacturers...but they all have the same iconography and processes for disarming potentially energized systems (e.g., put the car in neutral, put out a fire, check if car is electrically safe). That commonality means it is easy to train first responders AND for first responders to know what to/not to do in an emergency.
- deleted 7y ago
  [deleted]
- brooksgarrett 7y ago
  I'm willing to bet my Hurst spreaders will get the frunk open sans battery. If you're cutting the car, it's already totaled and limiting damage to the frunk would be the last concern on my mind.
  - mrpippy 7y ago
    Yeah, prying the frunk open and cutting the battery cables is the first thing they do in the video
    - brooksgarrett 7y ago
      I went back and rewatched it. I completely forgot they forced it. I first saw this a couple months ago when our TC used it for extrication refresher. I have to admit, even though it is staged and the car is completely intact, watching those guys is money. Super smooth execution. The way he handled the halligan solo to create the frunk gap was pleasing to watch.
  - avs733 7y ago
    You willing to apply them to something that you are trying to open specifically because you are concerned about the electrical state of the car? Your spreaders will open it like a tin can...but did Tesla rev the location in real time during manufacturing?

HeWhoLurksLate 7y ago

I don't think I want to have a "kill power" switch on the side of my vehicle where a random up-to-no-good kid (or adult) can kill power to my car while I'm driving it. Disclaimer: I ride a bike.

nexuist 7y ago
For what it's worth, there actually are kill switches on the sides of the ICE buses that service my university campus. Opening the little hatch and pushing the button disconnects power from the battery and kills the engine. I imagine it's useful in situations where the engine has caught fire and you need to stop fuel flow ASAP. I've never heard of people abusing it, probably because everyone on board the bus including the driver could easily ID the wrongdoer. Of course, private personal vehicles are a different story.

Animats 7y ago

Most US electric cars now have a cable marked with a yellow and red first responder cut point tag. You can see that briefly in the video. You cut the cable on both sides of the tag, so that the remaining ends can't touch, and the battery is isolated. There are where-to-cut guides.[1] [1] https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/EV_SafetyTraining/EV%20EFG%20Classroom%20Edition.pdf https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/EV_Sa...

imglorp 7y ago
I think you also want to disable unfired airbags after the car has stopped crashing. There are cases where rescuers leaned in on passenger side, putting pressure on seat, and had the airbag deploy on them. I think there's other concerns that cutting door sills can cause deployments. Oh and killing the engine would be good too.