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Charge Control

Discussion in 'Gen 3 Prius Technical Discussion' started by warby99, Jan 28, 2019.

  1. warby99

    warby99 Junior Member

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    Can anyone tell me what a Charge Control sayin -25KW means. I am using the torque Pro app and I am not sure what this is the Aux Battery is showing 14.4. v and al the 14 pods are showing 15.9 v Anyone got any idea Cheers
     
    #1 warby99, Jan 28, 2019
  2. Maarten28

    Maarten28 Active Member

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    I'm guessing this is the HV battery charge, not the 12V. There is a limit to how much energy the HV battery can take, depending on its charge and temperature.
     
    #2 Maarten28, Jan 30, 2019
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  3. warby99

    warby99 Junior Member

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    Hello thank you for your reply The HV Charge control is for the 201 volt battery but I need to know why the charge control is showing minus 25KV, is this normal or is there a fault
     
    #3 warby99, Jan 30, 2019
  4. jerrymildred

    jerrymildred Senior Member

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    I don't use Torque Pro, but it sounds like you're measuring power into and out of the traction battery. It goes both ways and one is positive while the other is negative.

    If there's a fault, you'll get lights on the dashboard.
     
    #4 jerrymildred, Jan 30, 2019
  5. Maarten28

    Maarten28 Active Member

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    I assume it's the charge control limit and there is a charge and discharge limit. One is positive, the other is negative.
     
    #5 Maarten28, Feb 1, 2019
  6. ChapmanF

    ChapmanF Senior Member

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    Big difference between 25 KW and 25 KV ! I think you had it right the first time.

    A limit of −25 KW (that is, 25,000 watts into the battery) would mean limiting the charging rate to less than 125 amps (in practice, I've mostly seen rates under 100).

    25,000 volts into a 201.6 volt battery would be somewhat unreasonable.
     
    #6 ChapmanF, Feb 1, 2019
  7. jerrymildred

    jerrymildred Senior Member

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    But it WOULD be exciting!! :ROFLMAO:
     
    #7 jerrymildred, Feb 1, 2019
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  8. warby99

    warby99 Junior Member

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    Yes it's KW but still had no real answers as to what it should read when normal
     
    #8 warby99, Feb 8, 2019
  9. ChapmanF

    ChapmanF Senior Member

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    -25 KW sounds about right, about 125 amps of charge, I don't think I've ever seen it go above that.

    Did you have a reason for concern?
     
    #9 ChapmanF, Feb 8, 2019
  10. Grit

    Grit Senior Member

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    No "normal" value for KW regen. It varies while coasting, cold soak start up, brake pedal pressure & etc.
     
    #10 Grit, Feb 8, 2019
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