Here is an early estimate of capacity and buffers before we had real data from vehicles.
https://www.macheforum.com/site/threads/mach-e-extended-range-battery-buffers-and-dcfc-limits.2431/
the charge curve estimate was pretty optimistic :/
The ER battery has 288 Ah total charge capacity. At a nominal voltage of 342 V, that is 98.7 kWh of total energy capacity.
as delivered, 2021 ER had 88 kWh of useable energy with the rest of the capacity used as buffers at the top and bottom of the battery charge, imposed by software on the...
These docs from https://dis.epa.gov/otaqpub/ (which I have posted about in the past but not recently) often contain quite a bit of information, and are somewhat hard to decode and understand. As is often done, the (zero emissions) certification of newer models is based on the testing of previous...
I am not as familiar with the Bolt as I am with the i3. The Bolt has much more range but is also much more of an economy car - which is good for costs and service. If you have an opportunity to test drive an i3, I would recommend it! The Bolt is probably a more practical lower cost option, but...
I got a 2014 i3 (first year) in 2015 with 1100 miles on it. I had the range extender REx model, and used that on occasion, since the EV range was about 70 highway miles. My son in Flagstaff took this over after I got my job 1 MME AWD ER in 2021.
The early models had 60 Ah battery, about 18 kWh...
and the GTPE has higher torque but the same power as GT from higher maximum inverter output current (below motor base speed), and not any higher maximum battery current.
Remy hvh motor plots!
see this for results from a pretty simple accel model
https://www.macheforum.com/site/threads/mach-e-gt-acceleration-modeling-shows-possible-performance-capability-of-the-gt.9599/
As stated on BorgWarner site quoted earlier, BW makes the case/casting and the gearing for the rear and front GT, others make the motor and the inverter. I think the MME motors are made by LG, and the inverters come from Hitachi. Doesn’t really matter, it’s all typical automotive supply chain...
It’s not about inductance - the cable is generating heat from resistance and current flow. It’s about surface area and convection to air.
there are plenty of pictures of extension cords melting when coiled up.
Great data!
The motor power and torque specs are the motor mechanical output, that then goes into the gear reduction, differential, axles to the tires.
These data line up pretty well with my initial acceleration model - see...