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Consistent regen performance with load dump resistor - idea

Discussion in 'Technical' started by tom66, Jan 5, 2014.

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  1. AWDtsla

    AWDtsla Active Member

    Joined:
    Mar 3, 2013
    Messages:
    4,144
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    NE
    Turns out coolant is a good coolant. Let's take a 300 horsepower engine for example, that's ~220kW output. Let's say it runs at 20% thermal efficiency (which would be laughably good), that means the waste heat at full throttle is 880kW. The coolant system in an ICE car deals with that just fine, and that is a big number.


    No the only problem with the Tesla is if there is a max delta-T for the batteries that you can't exceed without damage.

    - - - Updated - - -

    We want to add a flywheel do we? Why not just add warp drive?


    How I see the TMC designed car:

    homercar.jpg
     
  2. TEG

    TEG TMC Moderator

    Joined:
    Aug 20, 2006
    Messages:
    20,597
    Not necessarily saying it is a good idea, just pointing out that it has been tried.
    Tesla seems to have avoided "too much technology" for cost, complexity and weight reasons.
    I suspect that they considered all of these extra regen technologies and decided not to use them.

    By the way, Tesla CTO JB has experience with such things:
    JB Straubel - Wikipedia, the free encyclopedia
     
  3. keshi

    keshi New Member

    Joined:
    Feb 9, 2014
    Messages:
    3
    Location:
    Canada
    And then there's running a coolant loop by the brake pads as a sort of crappy middle ground. Won't save your brakes, but will heat the battery with excess energy in winter. :p
     

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