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Range extender trailer

Discussion in 'Charging Standards and Infrastructure' started by Kipernicus, May 6, 2011.

  1. Kipernicus

    Kipernicus Model S Res#P1440

    Dec 2, 2009
    Belmont, CA
    How's this for a crazy idea?
    Make a trailer that houses an ICE, gas tank, and generator that can charge the car while on the go? Sort of like a rail tender for electric cars. No need to haul around an ICE engine all the time, just on long road trips!

    One could even make it big enough to hold extra cargo, bikes on top, etc.

    Only question is would the generator be able to pump out enough electricity to overcome the extra weight and drag of the trailer? I'm sure the charging software would have to be modified to allow driving while charging too.
  2. TEG

    TEG TMC Moderator

    Aug 20, 2006
    Silicon Valley
    #2 TEG, May 6, 2011
    Last edited: May 6, 2011
  3. dhrivnak

    dhrivnak Active Member

    Jan 8, 2011
    NE Tennessee
    An extender trailer wonderful idea

    I think this is a great idea but unless driven by Tesla this would not be easy to do. I thought about making a lightweight trailer with say a lightweight 4000W gnerator that would give an extra 30 miles per hour. So instead of a 200 mile trip over 4 hours you could go about 350 miles over 5 hours. That way one could take the car to a distant show.

    But a hitch is not simple to attach and the Tesla will not allow you to drive if the charging port is open. So there is no easy way to charge the pack while driving.
  4. marco2228

    marco2228 Roadster Signature #34

    Nov 19, 2010
    Cologne/Bremen , Germany
    If you would take a compact 125ccm 4-stroke engine which runs a small electric motor (e.g. from a model airplane or so with 8-15kW or so;weight is max: 1,9kg) you should get a VERY compact generator which should even fit in the trunk. problems would probably be cooling of the ice and to handle the exhaust gas. So you could get lets say at least 8 kwh/h more capacity.

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