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Tesla making it easier for you to find your lost car keys

Discussion in 'Model S' started by jordanthompson, Nov 6, 2015.

  1. jordanthompson

    jordanthompson 2010 2.0 Sport, VIN 0683

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  2. Zaxxon

    Zaxxon Member

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    Ah, I see you beat me to it. I started a similar thread in the non-Model S-specific forum since my guess is this won't just be an S feature. Guessing the two should be merged.
     
  3. n33d45p33d

    n33d45p33d Member

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    Nice find.
     
  4. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    ...or it could be that the car is going to convert to BLE for the key's functions. That would also allow you to make your phone into a key as well.
     
  5. jpet

    jpet Jan P.

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    The Model X uses triangulation to detect that you are walking towards the front door from behind so that it can open automatically. Maybe this new key makes it easier / faster / more efficient to pick up the signal and your exact location?
     
  6. Subhuman

    Subhuman Member

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    This was my thought as well. It would be nice to be able to ditch the key FOB.
     
  7. woof

    woof Model S #P683 Blue 85 kWh

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    Possibly also to know if the key is in the car vs outside the car. It currently doesn't do that, which I find lacking.
     
  8. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    I was surprised when I found out that it couldn't tell where the fob was. In the Prius the car knew exactly where the fob was and if it was outside, even a little bit, it would not start.
     
  9. CHG-ON

    CHG-ON Still in love after all these miles

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    I lost one of my keys in the house almost a year ago and I still can't find the damn thing. Oh how I would love to have a beacon that could lead me to it. I expect I'll find when I move out, many years after the car is long gone!
     
  10. romp

    romp Member

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    I think this is exactly the reason for the switch to Bluetooth LE. MX needs to know where the key is and how it is moving in order to open the door. If it has two or more receivers on each side, it can measure the difference in signal arrival time and approximate the angle of where it's coming from (and distance from round-trip time). So it could tell if the key is approaching the door from the front, the rear or directly from the side. This technique is called "beamforming".

    It's much easier to do this if the wavelength of the signal is smaller than the area you're trying to deal with (meaning it has multiple waves to deal with). The wavelength of Bluetooth signal is 12cm (5"), but the wavelength of the old style remote is 1m (3'). It's much easier and more precise to deal with the former than with the latter.
     
  11. Andyw2100

    Andyw2100 Well-Known Member

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    Would this technology also make it easier for Tesla to connect fobs to individual driver profiles?
     

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