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Max SOC for engaging EV

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Presto, Dec 28, 2006.

  1. Presto

    Presto Has his homepage set to PC

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    Does anyone know the maximum SOC that allows the EV mode to still be engaged? I've been experimenting with that, and the highest SOC that allowed EV for me was 77%.
     
    #1 Presto, Dec 28, 2006
  2. efusco

    efusco Moderator Emeritus
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    Wow, I would have though 65-67% would've been the max....
     
    #2 efusco, Dec 28, 2006
  3. Presto

    Presto Has his homepage set to PC

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    Okay... i did some more experimenting with EV today. The max SOC that allowed EV mode to engage was 80%, although it cancelled right away because the ICE started up to give me heat. After turning down the heat, the ICE shut off, and I engaged EV again at 79%. This time EV stayed on since the ICE didn't cancel it.
     
    #3 Presto, Dec 29, 2006
  4. efusco

    efusco Moderator Emeritus
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    I don't get my SOC that high almost ever, I did get it up to 75% yesterday, thought to try the EV after your question at 74%, but I got a triple beep...tried again at 73% and it went right in... I suspect there are other factors besides just SOC that determine the limit...ICE temp? Cat and Inverter tempp?
     
    #4 efusco, Dec 29, 2006
  5. TheForce

    TheForce Stop War! Lets Rave! Make Love!

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    I dont have a can-view yet to show me whats going on but I remember force charging the battery about a month ago and it would not let me force EV until I was back in the blue.

    My canview and screen should be here in the next week or two and I will try to run a few tests if my screen works. I bought a different screen to use than what was suggested but that will be another topic.
     
    #5 TheForce, Dec 29, 2006
  6. Tideland Prius

    Tideland Prius Moderator of the North
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    so you mean you're trying to engage EV Drive mode with 8 bars?
     
    #6 Tideland Prius, Dec 30, 2006
  7. Presto

    Presto Has his homepage set to PC

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    Yep. EV can engage at 80% but it is still restricted by other parameters like inverter/battery temp, etc... It's been cold enough lately that I thought I would try to see what max SOC allowed EV. There's a hill at the beginning of my commute that takes me up to 80%+ most of the time. On the hill, that time, I was stuck behind a slow driver so the Prius had enough time to fully warm up and the ICE stopped by the time I got to the bottom. I still had to drive a block to let the inverter cool a bit before EV would engage.
     
    #7 Presto, Dec 30, 2006
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