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Rear cross traffic

Discussion in 'Gen 4 Prius Main Forum' started by annexedwa, Apr 17, 2016.

  1. annexedwa

    annexedwa Junior Member

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    how does it work? Is there cameras on the sides?
     
    #1 annexedwa, Apr 17, 2016
  2. pakitt

    pakitt Senior Member

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    To my knowledge, small radars to the sides of the rear bumpers.
     
    #2 pakitt, Apr 17, 2016
  3. I'mJp

    I'mJp Senior Member

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    small radars, and the ultra sonic transducers.
     
    #3 I'mJp, Apr 17, 2016
  4. Tideland Prius

    Tideland Prius Moderator of the North
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    It uses radar behind the rear bumper on each side of the vehicle (same one used for blind spot monitoring). It detects oncoming vehicles from either side and warn you with a chime and a visual alert (it'll blink the blind-spot warning on the mirror on the side the other vehicle is approaching).
     
    #4 Tideland Prius, Apr 17, 2016
  5. alanclarkeau

    alanclarkeau Senior Member

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    It has you wondering - imagine an underground carpark with 250 cars, each of which have a front RADAR and 2 rear radars.

    Will all the RADARs interact with each other and get confused.
     
    #5 alanclarkeau, Apr 17, 2016
  6. 'LectroFuel

    'LectroFuel Senior Member

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    It uses the small radars on the bumper. They are one of the best functioning (and one of my favorite) things about my car. It warns me way before I can see the other car coming.
     
    #6 'LectroFuel, Apr 17, 2016
  7. I'mJp

    I'mJp Senior Member

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    And with so many cars doing dcc, what will the confusion look(react) like ?
     
    #7 I'mJp, Apr 17, 2016
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  8. alanclarkeau

    alanclarkeau Senior Member

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    What's DCC?
     
    #8 alanclarkeau, Apr 17, 2016
  9. I'mJp

    I'mJp Senior Member

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    dynamic cruise control, uses radar too
     
    #9 I'mJp, Apr 17, 2016
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  10. alanclarkeau

    alanclarkeau Senior Member

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    Ahh, thanks - they seem to call it Autonomous Cruise here - that's what I referred to as front RADAR.

    I'm not certain, but I assume that City Safe Braking uses the same RADAR. Some more high end cars are advertising that they have high speed and low speed Auto Braking - not sure if that means that they have 2 front RADAR systems? (Subaru, though doesn't use RADAR, but visual systems.)
     
    #10 alanclarkeau, Apr 17, 2016
  11. Tideland Prius

    Tideland Prius Moderator of the North
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    Possibly but they're millimetre-wave radar so they have shortwave lengths and aren't long range. (well the forward-facing one will be the longest). The forward facing one will have software to ignore cars that are passing by and only focus on objects that are straight ahead.

    It's typically software driven. The Gen 3 Prius has radar as well but only for cruise control. The amount of brake force applied and the reation time is partially on the hardware (radar quality and the addition of a camera) and software (how fast can it process the data reliably? A camera helps in better recognising the situation so systems with both radar and camera tend to perform better)
     
    #11 Tideland Prius, Apr 18, 2016
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