Don't knock vehicles with limited power, there is absolutely no objective *need* for a family car with 400+HP. My 1994 US Electricar (S10 factory conversion) has a 50kW induction motor and a 250A limited inverter. Original design had a 312V lead acid pack, but due to the inverter's design with 450V components and specified 405V operational voltage (90% derated) it is possible to use a full Leaf pack in the truck which reduced weight from close to 5,000 to somewhere closer to 4,000 lbs. The ~360V (under load) and 250A current limit give the truck a theoretical peak power of 90kW but I hardly ever see the inverter capable of delivering more than 200A so the actual peak is closer to 70kW and that makes this truck very peppy and fun to drive, much better than when the Lead Acid pack was sagging below 280V and the truck was both heavier and only wielding 50kW. I have driven many low powered vehicles, including an original Trabant during a visit to former East Germany, so I know how to handle a vehicle that has just enough power to do what it is designed to do - move people around at freeway speeds. My first car had an air cooled 2 cylinder 800cc engine into a continuous variable transmission. Not fast or quick but very easy to drive ;-) Cor.
On Thu, Nov 4, 2021 at 12:33 PM EVDL Administrator via EV <ev@lists.evdl.org> wrote: > > On 4 Nov 2021 at 11:52, David Nelson via EV wrote: > > > I don't know where to source a 40kWh (note it is not kw, but kWh, > > kilowatt-hour) battery for a Leaf > > Yup. KW measures the battery's ability to deliver power, not its energy > storage capacity. > > But who knows? Maybe some Leaf owners really DO want 40kW batteries. > > After accounting for efficiency, a 40kW battery would give a Leaf roughly > the power of a 1961 VW Beetle, in a car that weighs over twice as much - and > doesn't have a 4-speed transmission for torque multiplication. > > Thirty or 40 years ago, 40kW was a typical small-car conversion - 96 volts > with a 400 amp controller. A 2500lb car with a forklift motor bolted to the > stock 4- or 5-speed transmission could usually manage a top speed of around > 65mph, if you were prepared to give it the better part of a minute and > didn't have too much of a headwind. > > In a 3400lb car with a single-gear transaxle, things might be a bit more > dicey. But maybe the OP is up to the challenge. :-) > > David Roden, EVDL moderator & general lackey > > To reach me, don't reply to this message; I won't get it. Use my > offlist address here : http://evdl.org/help/index.html#supt > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > I was gratified to be able to answer promptly, and I did. > I said I didn't know. > > -- Mark Twain > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
