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AC compressor questions

Discussion in 'Gen 3 Prius Main Forum' started by noyztoyz, Apr 12, 2010.

  1. noyztoyz

    noyztoyz New Member

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    Hello Prius owners!
    Im new to this forum!
    I came here because i need some info.

    I have a 25000 watt audio system in my nissan vehicle and i have found need to remove my ac compressor to install additional alternators,
    and i was thinking about replacing it with an electric compressor relocated where there is space somewhere to preserve the ac function in this hot climate.

    I did some research and discovered Denso invented an electric ac compressor in 2004. This is what i need. Current is not a problem in my car. I can throw 1000a of current all day long. Theres 600lbs of batteries. SO i can power up this day and night.

    So i need to know about this compressor like
    what volts does it operate with?
    and what jacks are on it?
    and if any ac tech guys are on here, i would be glad for advice on this project.

    Thanks in advance guys.
     
    #1 noyztoyz, Apr 12, 2010
  2. vertex

    vertex Active Member

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    It is not that simple. It uses an AC motor, and has an invertor to run it.
     
    #2 vertex, Apr 12, 2010
  3. noyztoyz

    noyztoyz New Member

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    an invertor to invert what, thats what i need to know,
    im not familiar with electric cars.
    Does it like take a 12v supply and invert it to whatever it needs?
    I think i read somewhere it goes on 240v ac.
    That wont be a problem for me because 12v dc to 240v ac invertors are commercially available.

    But i think i read also that these electric cars work with 42v or somn. And if it needs a 42v supply that would be a problem for me.

    Please clarify
    thanks
     
    #3 noyztoyz, Apr 13, 2010
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The Prius traction battery produces a nominal voltage of 201.6V. This DC voltage is converted to three-phase AC by an inverter. That inverter is controlled by the hybrid vehicle and air conditioning ECUs.

    25,000 watt audio system? How much heat does that produce? Sounds like you'll need good air conditioning even if your weather wasn't hot.
     
    #4 Patrick Wong, Apr 13, 2010
  5. noyztoyz

    noyztoyz New Member

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    it doesnt produce heat becasue most of the times it plays at 1/40 volume for daily use.
    Thats loud enough.

    The Prius traction battery produces a nominal voltage of 201.6V. This DC voltage is converted to three-phase AC by an inverter. That inverter is controlled by the hybrid vehicle and air conditioning ECUs.

    i need to know if the compressor works with this ac voltage or the dc voltage and if so what voltage, exact 201.6?

    Can someone unplug their compressor and stick in a meter to see what voltage it is??
    Im willing to pay some1 to help me out with this, i need to know this,
    there isnt other info anywhere a it has never really been done before. And no one here has a Prius!
     
    #5 noyztoyz, Apr 28, 2010
  6. vertex

    vertex Active Member

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    201.6 volts AC
     
    #6 vertex, Apr 28, 2010
  7. qbee42

    qbee42 My other car is a boat

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    It's not that simple. You don't stick a meter into it and measure the voltage. The A/C compressor on the Prius is a variable speed high voltage polyphase AC motor. You need to synthesize polyphase AC for your proposed application, and adjust the drive for starting and desired cooling.

    You might want to subscribe to Toyota's documentation web site for a day and download some schematics.

    Tom
     
    #7 qbee42, Apr 30, 2010
  8. Snarfty

    Snarfty New Member

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    Ok I'm going to rehash this topic. NoyzToyz did you ever manage to get this idea off the ground?
    I want to do the same not due to the lack of space in my engine bay due to alternators although I do have a big stereo. But so I can have no-idle aircon. I have a Toyota Hiace van that I have turned into a camper and it gets damn hot inside at night.

    So if anyone can help me with how to achieve this that would be awesome.
     
    #8 Snarfty, Feb 12, 2011
  9. priuscritter

    priuscritter I am the Stig.

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    25000 watts? seriously? That's more power than most radio stations use to transmit. And why would you even consider putting something like that in a car?

    The most powerful amp on Crutchfield is a RF that goes for $1400. It's 2500 watts. Are you telling me that you're going to run 10 of these in a Prius?

    i'm calling shenanigans until I see some pictures/specs of the equipment.
     
    #9 priuscritter, Feb 13, 2011
  10. Holmz

    Holmz New Member

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    Tom,

    How do they change the compressor's motor speed?
    Is it AC frequency or voltage? or both?
    The denso (ES14) unit also has inverter built onto the top of it, so I am not sure what needs to go in to alter the cooling action.

    Saw this video that shows the guy checking a fuse (1 so wondering if it is single phase or 3 phase). youtube.com/watchv=1xdauNpKoV

    The plug on the -04 and later looks like a 3-phase unit in here autoshop101.com/forms/Hybrid06.pdf

    Does anyone know where to get the plug for the A/C orange cable to plug into?

    25000W stereo? I have 100w per side at home in tubes, and the room is acoustically better. One would need the cooling with tubes.
     
    #10 Holmz, Jan 19, 2012
  11. seilerts

    seilerts Battery Curmudgeon

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    The other end of the plug is physically bolted to terminals inside the inverter case, i.e. you have to take the case apart to get/replace the cable.
     
    #11 seilerts, Jan 19, 2012
  12. qbee42

    qbee42 My other car is a boat

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    The drive unit is 3 phase variable frequency. I don't have the specs, but they are available from Toyota's tech web support (for a fee).

    Tom
     
    #12 qbee42, Jan 19, 2012
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