Re: Batteries - EV Conversion

On Sat, 1 Mar 2025 18:41:26 -0700, Bob La Londe <none@none.com99>
wrote:

On 3/1/2025 5:52 PM, bp@www.zefox.net wrote:

EVs benefit from a shiftable transmission exactly the way IC vehicles
do. The transmission minimizes current draw when torque is needed and
minimizes voltage required when speed is needed. Their omission is a
matter of cost control, not design optimization. The only thing they
don't need is a clutch. The current minimzation is especially important,
because electrical efficiency is inversely proportional to the square
of the current draw.

>
You are right of course.  Maybe not exactly, but the principal is
certainly still true.  I would not be a fan of dropping an EV motor in
front of a Dodge automatic transmission.  I'm not even sure it would
operate without being hooked to the Dodge computer.
>
--
Bob La Londe
CNC Molds N Stuff

 Lots od "standalone" computer options for the automatic - that's not
an issue - but the automatic costs you a lot of efficiency in an EV
where idling in gear is not required, and nor is a torque converter
(or clutch) for pulling away. Stick a manual tranny behind it.