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Sound of regenerative braking.

Discussion in 'Model S: Driving Dynamics' started by GIdoc, Apr 10, 2014.

  1. GIdoc

    GIdoc Member

    Joined:
    Jan 5, 2014
    Messages:
    35
    Location:
    Michigan
    So, I hear a sound when regen is set to standard and sound is only heard when car is about to come to stop, usually below the speed of 10 mph. If I start regen at 50 mph, I do not hear the sound until car has slowed down below 10 mph and about to come to a full stop. I don't know how to best describe it but almost sounds to me like motor/inverter is unwinding?:confused: I felt that it was significantly less noticeable when regen was set to low. Anyone else experience this. I have not noticed this on acceleration.
     
  2. Raven5000

    Raven5000 Member

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    Aug 16, 2012
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    111
    Location:
    San Francisco, California, United States
    Yeah always been that way for me. Kinda like the sound myself.
     
  3. Ugliest1

    Ugliest1 S85: "Sparky"

    Joined:
    Aug 19, 2013
    Messages:
    1,255
    Location:
    Victoria BC Canada
    Yes, as opposed to complete and utter silence there's a slight changing-pitch humming sound, just noticeable, near the end of the deceleration.
     
  4. SeminoleFSU

    SeminoleFSU Voluntaryist

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    992
    Location:
    Atlanta, GA
    I believe this is normal- mine does this and so did a loaner I got earlier this week
     
  5. Denarius

    Denarius Active Member

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    Apr 27, 2013
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    Location:
    Utah
    Sounds to me like when a jet engine shuts down, I love the sound personally.
     
  6. GIdoc

    GIdoc Member

    Joined:
    Jan 5, 2014
    Messages:
    35
    Location:
    Michigan
    The sound has not bothered be personally and I have only noticed it on some really early morning drives to work when it is really really quiet (no traffic) and I am not in mood to listen to radio. Just wanted to make sure that I do not have to worry about motor/inverter.
     

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