Electrical Vehicle Update – Space pod look-alike with exchangeable wheel/battery

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February 18, 2011

By Bob Difley space_pod_EV1A couple of automotive engineers, Kyu-Hyun and Sol Lee, have created a new concept for the battery of an electric vehicle (EV). Two of the drawbacks of EVs is the number of charging stations on America’s roads, and the length of time it takes to recharge an EV battery. These guys’ solution was to turn the single rear wheel into an exchangeable battery. To change, you simply unhitch the battery from the car, pull it away with the built in handle, and install the spare battery/wheel. Then set the depleted battery to recharge while you use the spare. An LED light monitors the level of charge while charging. A clever concept for a small two-seater city car, which as you can see is small enough to pull behind a motorhome on a small trailer or in your motorhome garage if you have a super-sized motorhome. Don’t know if this kind of dinghy would be practical or if the idea would ever catch on enabling the engineer duo to move from concept to production, but with the EV market changing so rapidly, it is hard to tell whose bright idea will be the next hot deal. space_pod_EV2 space_pod_EV3space_pod_EV4

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  16. Pat

    Great update…Thanks Bob!

    This is the kind of inventive thinking that will in the end get it done.

    One way to resolve the exchange issue might be that owners would be issued a special card/key that when used with a CC (to pay for the charge) would release the battery pack. If the unit is removed any other way, an internal switch could disable its use. Local businesses (eg gas stations, even coffee shops) could keep additional battery packs on hand so there would always be a spare nearby. Lots of exciting possibilities here!

    I say bring it on!

  17. catchesthewind

    Heres a thought. Have all three wheels as battery packs. This way as the drive wheel wears down you exchange it for one of the two front wheel spares.

  18. butterbean carpenter

    Howdy Bob,
    Thanx, for the update on the EV… NOW, WHAT ABOUT THE WINNEBAGO THEY WERE RUNNING UP AND DOWN THE WEST COAST!!!!!!!!!!!!!!!!!!!!!!!

  19. hoppe

    Might be the real deal if you could get it in a bit more of an ‘all terain’ mode. Spare battery packs to power the RV with as well as the car. Multi purpose battery use with a bunch of solar. Could be good competition for the Smarts that ride behind the sleepers too.

  20. Tom

    If the owner is exchanging battery/wheel units with spares he has pre-positioned, then, I could see the concept gaining some traction – but only for those locations the owner frequented on a regular basis.

    On the other hand, if it’s a swap program – you get one when you give one – then, if they don’t have enough “spares” hanging around, you’ll be out of luck if your not there soon enough to get a fully-charged unit.

    Also, it’s the honor system on swapping units. They’d need some way to secure the charging units until another was in place. Perhaps a dual-headed unit with only one bay charging at a time? When yours is inserted into the charger, it free’s the lock on the charged unit, allowing you to remove it while your depleted unit is charged.

  21. Tom

    QUICK !!!! Call George Jetson!!!! Tell him his car has arrived!!!!… I think it looks neat. It may not be the final solution but –with volume they could work out the kinks….Lets start selling it in India!!!!!