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Motor Generator (MG) Temperatures

Discussion in 'Prime Technical Discussion' started by EdPalmer42, Aug 10, 2023.

  1. EdPalmer42

    EdPalmer42 Member

    Joined:
    Dec 3, 2019
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    Location:
    Canada
    Vehicle:
    2020 Prius Prime
    Model:
    Base
    When I'm on the highway, I'm usually running Hybrid Assistant to see how the car's performing.

    I'm surprised how hard MG1, the smaller motor is working. After driving for a couple of hours, it's running at or even above the temperature of the ICE. I've seen MG1 run at 95C compared to the ICE at 90C. MG2, the main drive motor runs much cooler, maybe 50C. A similar situation exists for the inverters. Inverter 1 runs hotter than Inverter 2 with temperatures of maybe 55C and 45C, respectively.

    Can anyone else confirm these numbers?

    Thanks,
    Ed