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Can you set stop/hold in the Model S?

Discussion in 'Model S: Driving Dynamics' started by barbja, Sep 3, 2013.

  1. barbja

    barbja Member

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    Is there any way to set the MS to 'stop and hold'? Meaning: When you use the brakes to come to a full stop, the car will not move until you use the accelerator.

    I thought that turning off creep meant this, but apparently not. Seems that 'no creep' is akin to the car being in neutral or something.

    If there is no stop/hold feature, do you think that this is something that could be accomplished with a software update, or do you think that additional electronics would be required in the car?
     
  2. twinklejet

    twinklejet Member

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    1) There isn't such a feature yet.
    2) It can be accomplished by a software update.
     
  3. strider

    strider Active Member

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    I'm no EE but I've been told that this kind of feature (like a Segway) is difficult to accomplish with the AC no-magnet motors that Tesla uses. There is talk of a hill-hold feature but from everything I've read it will use the parking brake like the equivalent systems in ICE cars. The parking brake solution would involve simply a software update.
     
  4. barbja

    barbja Member

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    That's cool. It looks like they can do this one and the guidelines in the backup camera with software updates. Whether they'll do them or not remains to be seen.

    I only have one remaining issue from my test drive yesterday and that is 'top view'. I'm almost certain that that requires an extra set of cameras. I use that feature a lot in my own land yacht (it is only 1/4" wider than the Tesla -- 86.2 vs 86.4). It wouldn't be such an issue if I could manager to park well the first time. I never had such problems until my car bloated and now I have to worry about being 'right in the middle' or else my car will get dinged or people park so close I can't get my door open. I think that people are just being mean with the latter one though.
     
  5. hans

    hans P631

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    #5 hans, Sep 3, 2013
    Last edited: Sep 3, 2013
    It's not hard to push the park button when you want to engage the parking brake. The brake automatically disengages when you put the car back into drive.

    The rear camera has a very strong fish eye lens, so you will get used to the fact that the field of vision wraps all the way around from drivers-side blind spot to passenger-side bind spot. That is at least with the High Def version that comes with the tech package (or whatever it's called now).

    I park often on a one way street, so parallel to the driver side, so I have to open my door a crack to see the curb and avoid getting rash on those pretty rims. When parking in parking lots, I pull in, stop, then flip into reverse, just to get the rear view mirrors to point down and double check my spacing on the lines on either side of the car.

    You will get used to a set of tricks that work for you once you park the car in regular spots.
     
  6. Argelius

    Argelius Member

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    My BMW has this feature and it's great. Seems like it would be a very simple software tweak.

    Once my MS arrives, this will definitely take some getting used to not having. But I'm pretty sure I'll manage to cope. :wink:
     
  7. hans

    hans P631

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    I am curious as I have never heard of this "feature". If you get rear-ended, do the brakes stay on or release? If you wanted to quickly release the brake before impact, can you do that somehow without pushing the accelerator?
     
  8. Argelius

    Argelius Member

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    Those are interesting questions, which I must say I don't know the answer to.
     
  9. strider

    strider Active Member

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    BMW Technology Guide : Electromechanical Parking Brake
     
  10. barbja

    barbja Member

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    Yep, that's what I have. I love it. I've gotten to the point that I'm annoyed that I have to push the 'Auto H' button every time I start the car.

    It stays on.

    Unless you have the presence of mind to hit the parking brake button really fast and also remember if you're supposed to push it down or pull it up to release, you're SOL. What impact condition would you want to release the break, but not hit the accelerator? I know that my first reaction upon seeing an impending collision would be to stand on the brake. I've only seen rear-endings coming though.
     
  11. mknox

    mknox Well-Known Member

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    Yes, and all the door handles extend allowing the carjacker an easy way to hop in with you. I'm actually serious about this one. There are some places I may stop that I certainly don't want my doors unlocked.
     
  12. barbja

    barbja Member

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    Gosh, I guess I would try that once and never do it again.
     
  13. hans

    hans P631

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    My reaction upon seeing a POTENTIAL rear end collision is to check if I am clear to roll forward (or to the right of the car in front of me) and if so, to release the brake (or turn the wheel right) so the impact energy moves the car forward (or to the right, clearing a car in front) rather than crumpling the car, or sandwiching it into the car front. I wouldn't want to hit the accelerator unless I was 100% sure the impact was going to happen ( and there was no car or cross traffic in front of me).
     
  14. Hannes

    Hannes Member

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    . My VW Passat CC automatic also had this feature (even better one than the BMW 5) as well as Audi. Basically one can activate the 'stop-go' function so that the brakes automatically hold the car when you stop (for example at a traffic light) and the brakes automatically are released when you touch the accelerator. The brakes should also hold in case you are rear-ended.
     
  15. mknox

    mknox Well-Known Member

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    My cousin had a 1950-something Studebaker that could do this. If you pressed both the brake and the clutch at the same time, you could take your foot off the brake and the clutch would hold both pedals down. As you pressed the gas and released the clutch, it would also release the brake.

    This is not a new concept.
     
  16. sp4rk

    sp4rk Banned

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    I had a rental car in London (UK) many years ago ... a Merc.

    I too thought creep was the same, but still love creep off.

    That car let me come to a stop at a red light, then I could take my foot off both pedals. Car would stay still even if I was on an incline like an automatic "gentle" park brake.
    It would disengage if I stepped on the gas pedal.

    That would be doubly nice in the MS. Is that what we're talking about here?
     
  17. barbja

    barbja Member

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    Exactly

    - - - Updated - - -

    Sounds like the exact same thing to me. Where does 'even better' come in to play? Perhaps I'm missing something subtle.
     
  18. Shumdit

    Shumdit Member

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    On my e class cabrio you simply push the brake a little harder once you are stopped and it engages this feature.
     
  19. Hodginator

    Hodginator Member

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    My Chevy Volt has this ability and appears to use the brakes to accomplish it. On very steep hills I can feel the brakes release as I step on the accelerator. I imagine Tesla can add this with a software update. I hope they can as this was one thing that caught me off guard when I took a test drive and was leaving a parking garage that was on a steep hill. Not a deal breaker though.
     
  20. jcaspar

    jcaspar Member

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    I don't quite understand why this is necessary on a non manual transmission car. Can't you just put your left foot on the brake?
     

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