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 or making a Paypal contribution here: paypal.me/SupportTMC

Air Suspension and Body Roll

Discussion in 'Model S' started by grisnjam, Dec 29, 2011.

  1. grisnjam

    grisnjam P6316

    Joined:
    Dec 29, 2011
    Messages:
    247
    Location:
    Austin, Texas
    I am wondering about the air suspension option on the Model S and body roll and pitch. Were the tour cars equipped with the air suspension? Anyone ask about how pronounced the reduction in boll roll the air suspension provides? I am less interested in the aerodynamic against then increased handling.

    Thanks,
     
  2. WhiteKnight

    WhiteKnight _____ P85 #549 _____ Sig Red / Sig White

    Joined:
    Jun 27, 2011
    Messages:
    627
    Location:
    Atlanta
    #2 WhiteKnight, Dec 30, 2011
    Last edited: Dec 30, 2011
    My understanding is the test ride cars on 10/1 did have the Air Suspension. Unfortunately only the employees at Tesla know what a difference Air Suspension makes because they're the only ones who have driven the Model S with and without it.

    In general I believe Air Suspension has the potential to greatly improve handling, ride quality and aerodynamics (by lowering the car on the highway.)

    Because of the low center of gravity due to the location of the battery pack the Model S should perform well from a pitch and roll perspective even without the Air Suspension. With it you potentially could have a world class ride.
     
  3. jcstp

    jcstp Active Member

    Joined:
    Feb 7, 2011
    Messages:
    1,627
    Location:
    Belgium
    I think it must resemble the pneumatic suspension Citroen uses!

    Damping gets firmer in corners and flat surfaces, and gets softer on bad surfaces and slow speed!

    Range-Rover uses same system to get their vehicles corner like sportscars (hard suspension) on asphalt and soft on straits and bad surfaces! Also used to increase rideheight in extreme situations!

    Can also be used to heighten or lower the car for easyer acces!
     
  4. roblab

    roblab Active Member

    Joined:
    Jul 15, 2008
    Messages:
    2,024
    Location:
    Angwin (Napa Valley) CA

    Citroen uses hydraulic (oil) pump and nitrogen. Most other high end cars use only air pump. The results are similar, unless you are Citroen.

    Air suspension - Wikipedia, the free encyclopedia
     
  5. roblab

    roblab Active Member

    Joined:
    Jul 15, 2008
    Messages:
    2,024
    Location:
    Angwin (Napa Valley) CA
    Citroen uses hydraulic pump (oil) which compresses nitrogen. Most high end cars using "air suspension" use an air pump, with no hydraulic oil involved. Many advantages, used on large trucks and busses even, probably similar in ways, unless you are Citroen.

    Air suspension - Wikipedia, the free encyclopedia
     
  6. Tommy

    Tommy Member

    Joined:
    Mar 3, 2010
    Messages:
    880
    Location:
    The great OC
    Tesla Model S will be using an air suspension system by Continental according to this article: Latest News : Vehicle Dynamics International

    Company's web site: Continental Automotive -Electronic Air Suspension System
     
  7. brianman

    brianman Burrito Founder

    Joined:
    Nov 10, 2011
    Messages:
    15,487
    @Tommy - Nice find! Thanks for the links.
     
  8. Tommy

    Tommy Member

    Joined:
    Mar 3, 2010
    Messages:
    880
    Location:
    The great OC
  9. WhiteKnight

    WhiteKnight _____ P85 #549 _____ Sig Red / Sig White

    Joined:
    Jun 27, 2011
    Messages:
    627
    Location:
    Atlanta
    At the risk of touching off another round of complaints, here is a list of other systems that Continental AG can supply to Tesla:

    Adaptive Cruise Control (ACC) - ACC follows the flow of traffic ahead of the vehicle, even if its forward progress is only stop-and-go.

    Blind Spot Detection (BSD) - Blind Spot Detection warns the driver when there are vehicles in the blind spot of the side-view mirror.

    Emergency Brake Assist (EBA) - Emergency Brake Assist detects critical traffic situations and ensures optimum braking.

    Intelligent Headlamp Control (IHC) - Optimal night vision is essential particularly at night when the risk of an accident is twice as great as during the day.

    Lane Departure Warning (LDW) - The Lane Departure Warning (LDW) driver assistance system alerts the driver with acoustical or haptic warnings before his vehicle is about to leave the lane.

    Traffic Sign Recognition (TSR) - Just drive and let the car look out for the current speed limits – it won’t slip out of its mind

    Continental Automotive -Advanced Driver Assistance Systems
     
  10. drbradfo

    drbradfo Member

    Joined:
    Jan 9, 2011
    Messages:
    187
    Location:
    Portland, OR
    I wonder how many of Conti systems will be used... they also have a Autolinq connectivity system.
     
  11. AnOutsider

    AnOutsider S532 # XS27

    Joined:
    Apr 3, 2009
    Messages:
    11,923
    Like I've said before: I hope the model s is upgradable. I'd love to be able to add these things as they make their way into future S versions
     
  12. Kevin Harney

    Kevin Harney Active Member

    Joined:
    Apr 30, 2008
    Messages:
    2,052
    Location:
    Herndon, VA
    I for one am NOT getting the Model S because of it not having these things. OK all except the TSR which I did not know about. I want all of the modern safety features on my luxury car and will accept no less.
     
  13. dsm363

    dsm363 Roadster + Sig Model S

    Joined:
    May 17, 2009
    Messages:
    18,235
    Location:
    Las Vegas, NV
    You canceled your reservation (I thought you had one)?
     
  14. kgb

    kgb Member

    Joined:
    Sep 22, 2009
    Messages:
    605
    Location:
    Houston, TX
    I think he is joking. I find it hard to believe that Traffic Sign Recognition is the option that Kevin cannot live without. I got the joke, but a winking emoticon probably would have helped.
     
  15. kgb

    kgb Member

    Joined:
    Sep 22, 2009
    Messages:
    605
    Location:
    Houston, TX
    Wait, I read that as meaning that he was ok with the car lacking the other options except without TSR he didn't want it. But on second read, it looks like he cares about all the options except TSR. That makes a bit more sense. So if that's what he means, then no winky needed - no joke. I guess the joke is on me.
     
  16. dsm363

    dsm363 Roadster + Sig Model S

    Joined:
    May 17, 2009
    Messages:
    18,235
    Location:
    Las Vegas, NV
    The double negatives are causing my brain to start smoking. I need to go get more coffee:smile:
     
  17. Kevin Harney

    Kevin Harney Active Member

    Joined:
    Apr 30, 2008
    Messages:
    2,052
    Location:
    Herndon, VA
    I order to clarify my post I think that ACC, BSD, EBA, IHC and LDW are must haves in a LUXURY car and TSR would be a nice thing to have that I had not previously known about. And I guess I should have said I am not getting the car because it does not have these things as options.
     
  18. Doug_G

    Doug_G Lead Moderator

    Joined:
    Apr 2, 2010
    Messages:
    15,851
    Location:
    Ottawa, Canada
    #18 Doug_G, Jan 3, 2012
    Last edited: Jan 3, 2012
    Okay the alphabet soup is getting to be a bit much... bears repeating:

    ACC = Adaptive Cruise Control
    BSD = Blind Spot Detection
    EBA = Emergency Brake Assist
    IHC = Intelligent Headlamp Control
    LDW = Lane Departure Warning
    TSR = Traffic Sign Recognition

    ACC - nice to have, will miss it
    BSD - nah, I use Multivex mirrors and turning my head
    EBA - for the driver with sleep disorders
    IHC - sounds nice
    LDW - for the driver with sleep disorders
    TSR - for the driver with no brain... if you're not paying attention, having a machine do it for you really isn't going to help
     
  19. Robert.Boston

    Robert.Boston Model S VIN P01536

    Joined:
    Oct 7, 2011
    Messages:
    7,842
    Location:
    Portland, Maine, USA
    I think it very likely that Tesla will include this full suite in a couple of years. Getting even the "basic" Model S out the door is undoubtedly a heroic effort. Adding on this suite initially would have added to costs and delays, which Tesla simply cannot afford.

    As for me, I have never had any of these options, never had an accident, and am happy not to have six more things to break.
     
  20. tdelta1000

    tdelta1000 Active Member

    Joined:
    Jul 19, 2009
    Messages:
    1,667
    Location:
    South Florida
    that's a good question. Did anyone notice any good amount of body roll? Let us know.
     

Share This Page