As a EV want to be builder I am always asked how fast will it go first. This is very disharting as to make it go fast it cost money which is the 2nd question (what I could get a almost new gas car for that) . I drive my EV's like a old man as I want to get the most miles on the batteries. I have gone 18k with my work truck and trailer on a set of golf cart batteries ----- > > A Sparrows seems to me a very attractive EV vehicle for commuting > and the yellow tops a good choice.BUT
I think that good old golf cart batteries (6v) may be better if your not into the high performance but I have never had YT's > -1.USA seems not have understood the energy problem they are facing. > Even with the hugest quantity of coal-reserves for the electricity > plants people will be faced with higher energy prices. > Their cars and their EV are way overpowered.Burning tires is fun > but outdated. Plugging in a night will not use more electricity as power com have more that they know what to do with at night ( we could start by putting out those street lights) > > In germany,switserland ,austria ,scandinavia EV people are focusing far > less on > horsepower but on small commuter single person transport vehicles > with far less power but up to 60 , 70 km with 45 km/h speed. > they do this with 3 to 4 pb batteries or with high tension expensive > batteries > I will try to give a descripion later . Tell me how to convey this to my wheel spinning gas burning brothers > http://www.cityel.com/ > http://www.bineco.dk/ellert/lynch/index.htm > > http://www.lynchmotor.com/ > > -2 USA seems stuck with high torque series drive > too strong acceleration and too strong regeneration at low speeds > > read this on torque and regeneration with belts: I had regen 8 years ago and when it burned out I found that I didn't miss it ( don't use the brakes much any more as I am the master of conservative driving :-) > http://www.4qd.co.uk/faq/bmnc4.html#spstab > > > solutions: if you can get to work without highways > - use a smaller engine/shunt or permanent magnet (original > design 8 hp) > - (automatic ) limitation power to 80amp maximum > http://www.hotzenblitz-service.de/I-Matik.htm > > - put smaller wheels on the sparrow as in the original design > (less drag) > > - drive slower / you overturned already once . > > Personally I find the european el city and twike too small. > > http://www.city-el.de/c82.html > > The new designed SAM has two places and that is already better. > > http://www.ch-forschung.ch/fs/0110/S2-1_sam.htm > > > and last but not least these pages: > > http://www.testsam.ch/frame.php?lng=en&cont=vis > > greetings You have some great points but in defense of all the hot rod EV's builders ,they are just trying to get people (USA people) interested. The boat is going down and we can't sell a life boat unless it has Twin Johnson's (big boat motor) .God help us! >
