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Adaptive Cruise Control

Discussion in 'Technical' started by Kevin Harney, Apr 9, 2009.

  1. Kevin Harney

    Kevin Harney Active Member

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    Does any manufacturer have an Adaptive Cruise Control that can completely stop the vehicle ? I don't understand why this is so hard to do ?
     
  2. Joseph

    Joseph Member

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    I think Lexus has some sort of system that slows down the car, but never to a complete stop. I saw a Volvo commercial showing their car, at low speeds, coming to a complete stop.
     
  3. Kevin Harney

    Kevin Harney Active Member

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    Yes Lexus , Mercedes and Volvo all have systems that will slow the car down. And the Volvo will actually stop the car if it is going less than like 12 mph. But if you are slowing the car down why not stop it if necessary !?!?!?!!? Say the car in front of you slams on the brakes if they come to a complete stop why not make your car stop also ?!?!!? Does not seem like rocket science to me ....
     
  4. Kevin Harney

    Kevin Harney Active Member

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    Has anyone actually driven a car with ACC? How well does it work on congested highway use ? does it keep the distance too far ? in other words would people be cutting in front of you because there was too much space and then it would constantly be slowing you down ? just curious...
     
  5. SByer

    SByer '08 #383

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    I think because the potential liability issues from false positives scare everybody away from such things.
     
  6. AnOutsider

    AnOutsider S532 # XS27

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    Maybe I'm missing the point here... but if the car in front of me slams on the brakes, I'm going to be slamming on the brakes as well... I wouldn't trust that the car would understand the severity of the situation -- plus it's just reflex.
     
  7. vfx

    vfx Well-Known Member

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    I love it and want it on every car from now on. The smart cruise control feature is second favorite only to keyless enrty/ignition.

    It's what cruise control should be.

    Mine has three 'closeness' settings. Will not come to a complete stop. (I have never had enough nerve to fully test it into a solid object but it seems to beep and kick off at around 25mph)

    There is another great steering wheel feature that each time you reclick the set switch it increases your speed by 1 mph and if you hold it it jumps by 5mph -goes up or down. Very handy.

    Since this feature drives smarter than me it saves a lot of fuel. Should absolutely be required on an Electric Car.

    Cons. Sometimes it brakes when a semi is in front of me but in the lane to the right and sometimes brakes in tight mountain roads when it thinks I'm about to run into a rockface. Brake lights come on but it seems to be only under hard braking.

    Another problem is when I'm in a rental car that I forget that the cruise control is "stupid" and I get quite a shock when it cruises me right up to the back of the car in front of me:eek:.
     
  8. Kevin Harney

    Kevin Harney Active Member

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    Some people can get distracted while driving. Some situations come on too sudenly for human response... I am just saying if it can SLOW the car why not be ABLE to STOP it if necessary.
     
  9. vfx

    vfx Well-Known Member

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    I will reiterate my earlier comment about how much this ACC refines acceleration and braking so it increases miles traveled on a charge.

    I'm sure there have been studies done by Autocruise, Delphi and the various other manufactures of ACC as to how much can be gained in freeway and low-speed driving using the automated feature over inefficient human driving.

    This feature was first introduced in 2000 so by the time the Model S comes out it will be 12 year old technology.
    Note for Franz: The are less expensive laser versions but the various radar devices can be behind plastic grillwork and Toyota/Lexus has been hiding the radar in the font emblem like on the 2009 Lexus 570.
     
  10. vfx

    vfx Well-Known Member

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    AutoBlogGreen writes about using Audi's ACC for getting better mileage.


     
  11. Kevin Harney

    Kevin Harney Active Member

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    This is a flat out MUST HAVE. especially two years from now. Just because they have not talked about the details much does not mean that they will not do them. They have said over and over that this will be a state of the art car with no compromises.
     
  12. dpeilow

    dpeilow Moderator

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    Yeah - we have to remember that this is a prototype and two years from production. Although I would say that cancelling a Roadster because it doesn't have this feature is a bit extreme - it is after all a sports car and a different type of car altogether to what the Model S is aspiring to be.
     
  13. doug

    doug Administrator / Head Moderator

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    Sorry to say it, but sounds to me like you really shouldn't get the Roadster. No point in buying something you're pretty sure you'll be unhappy with before hand. And if you're not into roadsters to begin with, the lack of adaptive cruise control will likely be the least of your complaints.
     
  14. AnOutsider

    AnOutsider S532 # XS27

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    That's likely to raise some eyebrows @ TM HQ
     
  15. vfx

    vfx Well-Known Member

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    I've seen Cruise control kits but never an aftermarket ACC. If it exists maybe that would be the solution.
     
  16. William3

    William3 Member

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    #16 William3, Apr 13, 2009
    Last edited: Apr 14, 2009
    I've already told Elon (via email) and Zak (in person) how important it is to me. I'm just one weirdo, so I'm sure they just dismiss it. If they hear several people complaining about ACC then maybe they'll think about it. They seem to be scrambling to find new expensive options to offer in order to increase their per-car profit, so hopefully they'll start offering it in the future.

    If I had a ton of money and could afford to buy the Roadster as just a weekend toy, then I wouldn't be as critical of it. My reality is that I can barely afford it and I'm going to have to sell my existing car to help pay for it, so the Roadster is going to have to be my primary car and is going to have to earn it's keep.
     
  17. johnr

    johnr Member

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    Since the Roadster and the model S are both software controlled, I would think it should be easy to download a simple software upgrade to add this capability, should they choose to offer it after production - and the only actual modification to the car would be a radar sensor inside the grille.
     
  18. Kevin Harney

    Kevin Harney Active Member

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    I have to agree that it is less necessary on the Roadster. Part of the fun of having a Roadster is actually driving it as opposed to the idea of a Luxury Sedan which should almost drive itself....
     
  19. TEG

    TEG TMC Moderator

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    2010 Prius options...


     
  20. William3

    William3 Member

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    Yeah, in post#9 I mentioned that the new Prius had Adaptive Cruise Control. It's pretty sad when such a cheap car has it, but the super expensive Roadster doesn't, and it looks like the Fisker and the Model S won't have it either. Really sad.
     

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