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Model S E-Brake???

Discussion in 'Model S' started by tdelta1000, Jul 19, 2009.

  1. tdelta1000

    tdelta1000 Active Member

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    #1 tdelta1000, Jul 19, 2009
    Last edited: Jul 20, 2009
    Question? Does anyone know will there be an "E"-Brake (Emergency) available on the "S"? if so will it be electronic like the VW Passt
    074__scaled_600.jpg
    or will it be a manual version? Hand lever or floor pedal?
     
  2. EV_de

    EV_de Model SP10/XP9 EU ZOE#47

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    Don't know but look's like a EPB (Electric Parking Brake)

    [​IMG]
     
  3. tdelta1000

    tdelta1000 Active Member

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    Hey EV_de,

    EPB is cool but in the event it fails I would feel better with an emergency system.
     
  4. vfx

    vfx Well-Known Member

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    This feature is new to me. I thought all cars had to have a mechanical emergency brake.
     
  5. EV_de

    EV_de Model SP10/XP9 EU ZOE#47

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    #5 EV_de, Jul 20, 2009
    Last edited: Jul 20, 2009
    I guess "tdelta1000" meant the Parking Brake System, it's still mechanical just:

    More Detail at:
    Hand brake - Wikipedia, the free encyclopedia

    A pure E-Brake System is still prohibited by Law, but it's just a matter of time ....

    More and more in-Car System switched to E-support

    - ABS / TC
    - hydraulik power steering
    - cooling water pump
    ...aso...

    ---- wait ------------

    even more Info here:
    http://en.wikipedia.org/wiki/Brake-by-wire

    Mercdes have it allready, but still under development....
    http://en.wikipedia.org/wiki/Sensotronic

    Toyota Lexus also:
    http://en.wikipedia.org/wiki/Electronically_Controlled_Brake
     
  6. tdelta1000

    tdelta1000 Active Member

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    It seems that my use of the letter "E" and not the word emergency may be causing some confusion. Allow me to clarify things, the VW Passat has a push button for the emergency brake and I was wondering will Tesla have something similar? Pardon any confusion. Peace
     
  7. vfx

    vfx Well-Known Member

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    #7 vfx, Jul 20, 2009
    Last edited: Jul 20, 2009
    I never knew there was an approved motor-assist mechanical Emergency brake system. I thought the point was to have a system independent of the hydraulics that assist in normal braking.
    http://en.wikipedia.org/wiki/Parking_brake
    It seems the spirit of the law seems was made to have a redundant and totally separate "fail safe" system that is not dependent of the car's electrical/hydraulic operating systems so a leak or electrical fault could not give way on a hill.

    Maybe a motor that ratchets a cable is separate enough that it's been OK'd by the the safety police but in the case of a car that is going for less energy draw and less weight, we might loose niceties like this and motorized seats. Some of those seats must weigh 200 lbs.
     
  8. tdelta1000

    tdelta1000 Active Member

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    #8 tdelta1000, Jul 20, 2009
    Last edited: Jul 20, 2009
  9. shark2k

    shark2k Member

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    I don't get what you mean by a pure e-brake system being prohibited by law? E-brakes have been in cars in the US for quite a while (not sure when they first appeared). But I'm not understanding how an e-brake system can be "pure" and on top of that how it can be prohibited by law. The point of the e-brake was always to prevent the car from moving if whatever was primarily meant to hold the car failed. It also gave you another brake to use in an emergency situation where your actual brakes fail and you could use the e-brake to assist in slowing down.

    -Shark2k
     
  10. EV_de

    EV_de Model SP10/XP9 EU ZOE#47

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    a pure e-brake system is a kind of "regenerative brake" based on an eddy current brake.

    There is no system on the market (yet) that has the reliability and/or the approval to use in mass market.
     
  11. shark2k

    shark2k Member

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    Gotcha. Thanks.

    -Shark2k
     

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