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How many inverters?

Discussion in 'Gen 2 Prius Technical Discussion' started by The Tramp, Mar 28, 2008.

  1. The Tramp

    The Tramp Italian Prius Expert

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    Reading this site

    http://www.artsautomotive.com/PriusMG2.htm

    I discover that the prius Classic has two inverters.

    The MG1 motor temp was 152 deg. F
    The MG2 motor temp was 320 deg. F (clearly too hot!)
    The MG1 inverter temp was 107 deg. F
    The MG2 inverter temp was 91 deg. F

    Is this still true with the Prius THS II?
     
    #1 The Tramp, Mar 28, 2008
  2. JimboK

    JimboK One owner, low mileage

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    Yes.
     
    #2 JimboK, Mar 28, 2008
  3. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Perhaps a few more if you also count:
    • 12 VDC supply (NHW11 and NHW20)
    • AC compressor supply (NHW20 models)
    But we're getting into the weeds at this point. For motive power, both vehicles have two primary power inverters dedicated to MG1 and MG2.

    Bob Wilson

    ps. MG1 and MG2 inverters are bi-directional in that they can covert power back to battery voltage. Most inverters are one-way only. Now we're looking at the root nodules.
     
    #3 bwilson4web, Mar 28, 2008
  4. ken1784

    ken1784 SuperMID designer

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    One more on NHW20.
    • 201.6V to 500V step up converter
    Ken@Japan
     
    #4 ken1784, Mar 28, 2008
  5. The Tramp

    The Tramp Italian Prius Expert

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    Just to understand.....

    Battery 202V DC <--> 500V step up converter <--> MGn Inverter <--> AC MGn

    Am I correct?
     
    #5 The Tramp, Mar 29, 2008
  6. ken1784

    ken1784 SuperMID designer

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    HV battery
    - DC-DC converter -> Aux battery
    - DC-AC inverter --> A/C compressor
    DC-DC step up converter
    - DC-AC inverter --> MG1
    -     DC-AC inverter --> MG2

     Ken@Japan
     
    #6 ken1784, Mar 29, 2008
  7. patsparks

    patsparks An Aussie perspective

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    Thanks for pointing me to that site, a lot of good stuff there.
     
    #7 patsparks, Mar 29, 2008
  8. The Tramp

    The Tramp Italian Prius Expert

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    Thanks Ken. ;)

    One last question: I thought tha the A/C Compressor was 500V. From your schema it looks like 200V
     
    #8 The Tramp, Mar 29, 2008
  9. ken1784

    ken1784 SuperMID designer

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    #9 ken1784, Mar 29, 2008
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