[HN Gopher] Tesla Cybertruck Frunk Is Hungry for Fingers
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       Tesla Cybertruck Frunk Is Hungry for Fingers
        
       Author : stalfosknight
       Score  : 45 points
       Date   : 2024-03-31 21:09 UTC (1 hours ago)
        
 (HTM) web link (jalopnik.com)
 (TXT) w3m dump (jalopnik.com)
        
       | apantel wrote:
       | Automatic doors of any kind are a big hazard. I saw a Tesla SUV's
       | gullwing door slowly closing with a little boy playing
       | underneath. The tip of the door was about to come down right on
       | the child's mushy cranium when he looked up, saw the door, and
       | darted out of the way.
       | 
       | (This is not satire -- it actually happened.)
        
         | polishdude20 wrote:
         | Isn't there some mechanism to sense the torque feedback or
         | something and stop the door closing?
        
           | Rinzler89 wrote:
           | There is, power windows in cars have had it for over 20+
           | years or so, for safety, so kids/dogs don't strangle
           | themselves with the windows.
           | 
           | It's a 1 cent shunt used for monitoring the current
           | consumption of the motor. If the current spikes, it means
           | something jammed it(or it reached the top/bottom) and the
           | microcontroller will cut power to the window lifting motor.
           | 
           | Maybe Tesla can look into that cutting edge tech once they
           | wrap up humanoid robots.
        
             | slipheen wrote:
             | It seems bizarre to me that they wouldn't have that sensor,
             | I wonder if maybe it's because they somehow didn't
             | calibrate properly for the force at the top angle?
             | 
             | I don't have/want to cybertruck, but I wonder if it would
             | stop properly if you were to have something at the bottom
             | blocking it.
        
             | hagbard_c wrote:
             | > ...and the microcontroller will cut power to the window
             | lifting motor.
             | 
             | Usually the controller will reverse the motor instead of
             | just cutting it. You want the window or door to stop
             | strangling the cat, not just do it somewhat more slowly.
             | 
             | source: experimentation with power windows and doors,
             | garage doors and similar objects. I actually started doing
             | this after a misadjusted garage door strangled one of our
             | cats.
        
       | OgsyedIE wrote:
       | I'm surprised there aren't similar complaints about the joints of
       | commercial quadruped robots - they're covered in pinch points.
        
         | slipheen wrote:
         | I apologize, but I'm not sure I understand what point you're
         | making here?
         | 
         | It seems like such a strange comment- surely there is a gulf of
         | difference between a commercial robot that will be interacted
         | with by a few trained factory workers and something which is
         | sold to everyday people and on public streets right?
         | 
         | Can you elaborate more on the comparison you're trying to draw?
         | 
         | I am trying to take it in good faith, but I'm genuinely at a
         | loss trying to understand what you're going for.
        
           | throwaway11460 wrote:
           | Robot dogs are supposed to move outside factories among
           | untrained people.
        
       | nubinetwork wrote:
       | I still encounter elevator and garage doors that close on people.
       | Best to stay clear of any automatic door closers.
        
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       (page generated 2024-03-31 23:02 UTC)