In this age I declare DC dead. It would be hard to go wrong if you can cram a Tesla Model 3 rear drive unit in there, they are some of the most reliable and efficient units made. Unless you do something special (such as SepEx) you don't get regen with DC. This takes a large efficiency hit, especially in local city driving.
We do OEM-level conversions of the Ram Promaster to all-electric using the Tesla Model 3 Drive unit. They have been proven to be almost bomb-proof even lugging very heavy vans around. But that said, a Conversion is non-trivial. We did 2 years of engineering to bring our vans to market. It's a long project even for someone with deep mechanical and electrical experience. It can be very rewarding, but it's not something I'd suggest unless you have a lot of time (such as being retired) and the skills. (Either that or be willing to pay $50k+ minimum) Some high-quality one-off conversions done by skilled professionals routinely end up in the $200k range. One common "old school" method was to bolt a DC motor to an old ICE transmission with an adapter plate. These drivelines are highly lossy, just the right-angle conversion at the hypoid pinion drive in the rear-end can suck down over a kilowatt of loss! There's a reason why you see the lifted truck guys put big aluminum-finned covers on them. Then there's the transmission... Plus you get no regen. Yeah it's mechanically easier, but you end up with a short range low-performance conversion. On Thu, Apr 25, 2024 at 3:52 AM bill devos via EV <ev@lists.evdl.org> wrote: > Thank you, Lee. I will definitely look up these publications. I believe I > did look at one of these last year and have to admit I was a bit blown over > by the depth of the discussion for instance, how does one decide whether to > go AC or DC? > Bill devos. Rochester, New York. > > Sent from my iPhone > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240425/b8ee0af7/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
