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Wonky cruise control

Discussion in 'Model 3: Driving Dynamics' started by KMullen, Jul 13, 2018.

  1. KMullen

    KMullen Member

    Joined:
    Apr 1, 2016
    Messages:
    6
    Location:
    Portland, Oregon
    So yesterday I was a on a single land divided highway, lines were clearly marked, no traffic oncoming or around me, driving during the day. Cruise control was slowing down below 55 around the corners. Is this normal? Usually I just set it and forget it. My 2015 Ford Explorer has adaptive cruise as well but never drops speed unless it senses cars.
     
  2. mtndrew1

    mtndrew1 Member

    Joined:
    May 12, 2015
    Messages:
    390
    Location:
    Gardena, CA
    My car will also slow for corners and then return to the set speed when the path straightens.
     
  3. KMullen

    KMullen Member

    Joined:
    Apr 1, 2016
    Messages:
    6
    Location:
    Portland, Oregon
    These corners were not sharp and did not have reduced speed notices. Were yours slower? I found it annoying and turned it off cruise control all together. Is it a fault "feature" adaptive cruise?

     
  4. mtndrew1

    mtndrew1 Member

    Joined:
    May 12, 2015
    Messages:
    390
    Location:
    Gardena, CA
    Well I don’t have any examples off hand but memory has them as moderate curves that I too would have slowed for, though perhaps not as dramatically. In fairness I almost never use TACC alone so I’m glad that it slows for autosteer which can sometimes be a little over confident.
     
  5. ewoodrick

    ewoodrick Member

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    Apr 13, 2018
    Messages:
    673
    Location:
    Buford, GA
    Yep, it does seem to understand that some curves deserve a little deceleration for taking the turn.
    But, it doesn't add enough for really sharp turns, and it sometimes waits a little late in a turn before decelerating.

    It's definitely a beta type feature.
     
  6. sperkin

    sperkin Member

    Joined:
    Mar 23, 2017
    Messages:
    237
    Location:
    Los Angeles, CA
    Same issue here. I noticed EAP will take turns around 10mph slower than other cars. Some turns I take around 60mph, EAP takes it at 45mph and other cars does it at 55mph. EAP is just trying to stay on the safe side.
     

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