TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Brake Hold is one of the coolest features nobody talks about

Discussion in 'Model 3: Driving Dynamics' started by mekberg, Jun 11, 2018.

  1. shrspeedblade

    shrspeedblade Rideshare Monkey

    Joined:
    Sep 29, 2015
    Messages:
    1,117
    Location:
    CA, United States
    I know my Volt's hill hold feature changed driving in San Francisco for me! (Except the nasty financial district LOL!) If it can't already I sure hope they adjust the 3s to be similar because it is wonderful!
     
  2. But_dave

    But_dave Member

    Joined:
    Apr 19, 2018
    Messages:
    26
    Location:
    New Hampshire
    I can do Hold with Creep on. OP thanks for mentioning this - did not know about it - very nice
     
    • Like x 1
  3. SigNC

    SigNC Active Member

    Joined:
    Aug 23, 2017
    Messages:
    1,301
    Location:
    NC
    of course you can, but it doesn't just turn on when you come to a stop. You have to engage it by pressing harder on the pedal. Without creep, if you come to a stop with the brakes the car is put in hold.
     
  4. TT97

    TT97 Active Member

    Joined:
    Aug 6, 2017
    Messages:
    2,150
    Location:
    Los Angeles
    I don't use creep. If I press the brakes normally to a stop, it will not engage hold - once I let go, the car will be in free roll. Pressing again or pressing harder puts it in hold.
     
    • Informative x 1
    • Like x 1
  5. broncobilly

    broncobilly Member

    Joined:
    Aug 8, 2017
    Messages:
    23
    Location:
    Lakewood, CO
    Until now, I have always driven manual transmissions. Subaru is one of the most popular cars in Colorado. "Hill Hold" has been on Subarus for several years and was always very helpful when trying to start UP a hill. I believe there were a few other car models that also had that feature for manual transmissions. Not sure if they had it on automatics. I am curious.
     
    • Like x 1
  6. SigNC

    SigNC Active Member

    Joined:
    Aug 23, 2017
    Messages:
    1,301
    Location:
    NC
    if you come to a stop with the brakes and you foot is on the brake any amount of time with it stopped it will go into hold. I don't have to press harder.
     
  7. mongo

    mongo Well-Known Member

    Joined:
    May 3, 2017
    Messages:
    12,580
    Location:
    Michigan
    It's actually a tricky problem to solve because the wheel speed sensors can't differentiate forward from backward movement. The 3 could likely do it because the PMSR motor requires absolute position information for phasing the drive signals. However, the AC Induction motors on S/X lack such feedback.
    Even if they got fancy and used the SRS accelerometer to detect movement, that still requires preloading the drive train to match the force produced by the incline. With a mass estimation algorithm, it could get close. However, the sensor accuracy/ sensitivity may not be sufficient for such low speeds/ accelerations....

    Cool problem:)
     
    • Informative x 1
  8. MarkinArch

    MarkinArch 1st S.A.TX Non Owner TM3 Delivery

    Joined:
    Jan 2, 2018
    Messages:
    146
    Location:
    San Antonio, Texas
    I ended up just going back to Creep On so I wouldn't run into any issues....or cars. I can barely tell the difference but can rest assured that I won't accidentally roll into the back of someone. No biggie.
     
  9. MorrisonHiker

    MorrisonHiker S 100D 2020.40.4

    Joined:
    Mar 8, 2015
    Messages:
    8,571
    Location:
    Colorado
    #29 MorrisonHiker, Jun 25, 2018
    Last edited: Jun 25, 2018
    How old (or new) is your car? We have three Teslas from 12/2016 to 12/2017 and none of them work that way. In our cars, we have to press harder to engage hill hold after stopping.

    It would be a surprise to me if the Model 3 behaves differently than the Model S. I only have limited driving time in a Model 3 since I'm still waiting to order AWD. I can't remember if hill hold engaged automatically in the 3 but it doesn't in our other Teslas.
     
  10. TT97

    TT97 Active Member

    Joined:
    Aug 6, 2017
    Messages:
    2,150
    Location:
    Los Angeles
    Here is a quick video stopping the car with no creep. Let go of the brake and car does not go into brake hold. I kept my foot on the brake for a little bit after the car stopped to show was fully stopped (you can see with the brake lights on the car).



    I am thinking you may be increasing pressure on the brake without realizing it. Brake hold works the same way with or without creep.
     
    • Like x 3
  11. SigNC

    SigNC Active Member

    Joined:
    Aug 23, 2017
    Messages:
    1,301
    Location:
    NC
    maybe, if i am it's very minimal. I"ll do it again this evening and circle back.
     
  12. insaneoctane

    insaneoctane Active Member

    Joined:
    Apr 6, 2016
    Messages:
    3,249
    Location:
    Southern California
    Funny I was just playing with this this weekend. I *LOVE* the hold feature and use it every single drive. I thought I would try creep. I think I like creep on, but I couldn't get hold to work. I pressed the brake pedal harder than I would have with creep not engaged and decided creep on means hold is not available.... After reading this thread, maybe I didn't push hard enough? I will go try again.
     
  13. SpudLime

    SpudLime Active Member

    Joined:
    Jun 10, 2018
    Messages:
    1,420
    Location:
    Leesburg, Va
  14. insaneoctane

    insaneoctane Active Member

    Joined:
    Apr 6, 2016
    Messages:
    3,249
    Location:
    Southern California
    Just tried again .Hold is available with creep but you have to push so hard it's not worth it IMO
     
  15. SigNC

    SigNC Active Member

    Joined:
    Aug 23, 2017
    Messages:
    1,301
    Location:
    NC
    this is my experience. it's totally different with creep on vs off.
     
  16. Az_Rael

    Az_Rael Supporting Member

    Joined:
    Jan 26, 2016
    Messages:
    5,582
    Location:
    Palmdale, CA
    I am stuck in an automatic Lincoln Continental rental right now that has brake hold that works very similarly to a Tesla with creep off. (It also has walk up unlock, interestingly). Probably it's only redeeming feature since the one I have doesn't have TACC.
     
  17. TT97

    TT97 Active Member

    Joined:
    Aug 6, 2017
    Messages:
    2,150
    Location:
    Los Angeles
    Did some testing driving around today. From what I noticed, it does need additional pressure to set brake hold, however, it is really minimal. With creep on, while working the same way, it needs significant more pressure on the pedal to set it.
     
    • Like x 1
  18. mekberg

    mekberg Member

    Joined:
    Jan 5, 2015
    Messages:
    494
    Location:
    Madison, Wisconsin
    Moar squats?
     
    • Funny x 1
  19. SigNC

    SigNC Active Member

    Joined:
    Aug 23, 2017
    Messages:
    1,301
    Location:
    NC
    So I tried it on the way home from work. To me it feels if i just regen brake to 8mph and then barely have my foot on the brake to stop the car it will go into hold. I don't feel i'm putting any increased pressure from stopping to engaging hold and even the braking pressure is minimal as i'm stopping from 8mph. Either way, it's much easier to engage without creep on but to each their own.
     
  20. jp3pac

    jp3pac Member

    Joined:
    Sep 7, 2017
    Messages:
    12
    Location:
    portland
    I also like the hill hold. But I also like that I don't have to come to a complete stop to shift into reverse. Nor do I have to have my foot on the brake to change direction. That makes parking with several adjustments a lot easier.
    The 3 is such an easy car to drive. I jump at any opportunity to drive it.
     
    • Like x 1

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC