GdB wrote:Or you can make it a range extender trailer somehow?
Hmmm, what are you proposing here- taking the i-MiEV battery tray out of the car and setting it on a trailer? Yup, that should be easy enough, or a front-end collision-salvage car could be made into a trailer by just cutting away all the extra body work and leave the drivetrain intact for pushing and regen... The tongue weight would likely be excessive for an i-MiEV if we don't add a counterweight behind the rear axle of the trailer. That also brings up the possibility of an "Electric Pusher Trailer".. That's right, tow an intact i-MiEV behind a gasser and push with it, as well as employing regen. That would be an awesome feature for RV dinghy use. I'm convinced that the ban by Mitsu on flat towing was simply a legal CYA move, and there's no technical reason to not flat tow the car if it is turned on and in Neutral. (Or perform a regen recharge of varying intensity by picking your drive mode before a long downhill grade.)
Here's the only electric pusher that I'm aware of.http://www.evalbum.com/1713
I'd rather not need a trailer for my daily commute, but reserve trailers for 'special trips'. A small range trailer does open the possibility of designing a conversion (or buying and OEM EV) with the smallest pack that will handle your normal routine, and use the trailer for special trips.
Some range trailer concepts like the AC Propulsion Long Ranger, the EP Tender, and Rinnspeed's Dock+Go, are designed to be unobtrusive enough for frequent use. http://www.evnut.com/rav_longranger.htmhttp://www.eptender.com/http://evworld.com/news.cfm?newsid=27012
There was also a cute little animation of a Rinnspeed-type concept for the i-MiEV by some Danish or German college students, IIRC, but I'm not finding it now.