I wish this was produced in large-scale: https://www.koenigsegg.com/dark-matter
Mercedes‑Benz starts large‑scale production of electric axial flux motor
281–290 of 362 posts
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#282Earlier quoted context omitted.
Number 1 problem is battery weight though. Not electric motors. I have a 84 w123 300D, and would love to add some more power to it. Lightweight hub motors would be great, but any decent size battery would be at least 200lbs+, which is hard to do on a old chasy.
Reducing the motor mass by 200 kg means you've just removed 10% of the weight of the vehicle. You could theoretically now reduce the battery pack by 10% as well.
Not true. The CdA (coefficient of drag multiplied by frontal area) matters far more for range than the weight for range. That is a smaller EV, which may very well be heavier can have a higher range and efficiency.
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#283Mercedes acquired Yasa (UK) couple of years ago and now getting up to the speed in the production. Here is a nice video that explains axial flux motors with a factory visit https://youtu.be/B2Hl4c1iZK0?si=VfDYARyuaPVj1nKm They are so, so, small.
That's Kryten, woah! :D Huge fan of Red Dwarf
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#284Mercedes acquired Yasa (UK) couple of years ago and now getting up to the speed in the production. Here is a nice video that explains axial flux motors with a factory visit https://youtu.be/B2Hl4c1iZK0?si=VfDYARyuaPVj1nKm They are so, so, small.
I was curious how this thing works and asked Claude to visualize it -- mostly to see how good Fable is and I have to say, what it made was good enough for me to get a gist of it. Posted it here https://azimi.me/axial-flux-motor-explainer/
can you share your prompts?
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#285For years we've been seeing the hype about how axial flux electric motors will save 100 or even a couple of hundred pounds per car. Does this announcement mean we're finally starting to see the first increment of that actually happening?
(The motor is less important than the battery in terms of total weight, long term durability, etc. But nonetheless, any improvement helps!)
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#286I want to do an engine swap in my 1980s Toyota pickup (like on Back to the Future) from a 100 hp 22r to a 150-250 hp fuel injected inline 4 or turbodiesel to raise the thermodynamic efficiency from 20-25% to ~40% to nearly double fuel economy. Unfortunately, most modern engines are transverse mounted. They can fit any transmission with an adapter plate, but then they're set too far back into the firewall to access st…
something like a BMW 330e drivetrain has that (as do most German RWD hybrids), the biggest issue there is going to be the inverter and control software.
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#287For family cars we need 4x 30-50 hp units. If the motor can weigh around 7 kg it can be placed directly on wheel. Adding durable brake discs (rarely used) and 2 inverters front ad back and we have the EV platform of the next 100 years
do we need disk brakes?
you'd need close to a megawatt of engine/inverter to only brake on regen.
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#288Earlier quoted context omitted.
Number 1 problem is battery weight though. Not electric motors. I have a 84 w123 300D, and would love to add some more power to it. Lightweight hub motors would be great, but any decent size battery would be at least 200lbs+, which is hard to do on a old chasy.
its less hard than you'd think unless you're really going for long range. for my sailboat I am getting rid of a 300lbs diesel and a 30gallon fuel tank with a 45lbs PMAC. That means I have opened up about 465lbs for batteries. Now, with a sailboat you're never truly out of range -- but the point stands : these things are so much lighter than ICEs on average that there is a lot of opportunity even with battery weight a…
This is silly, but I've also wondered if you could make a boat that can anchor and recharge batteries from ambient current, sort of like stationary regenerative braking. I'm sure it would take way too long to be worth it, but it was a fun idle thought.
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#289Earlier quoted context omitted.
Reducing the motor mass by 200 kg means you've just removed 10% of the weight of the vehicle. You could theoretically now reduce the battery pack by 10% as well.
Not true. The CdA (coefficient of drag multiplied by frontal area) matters far more for range than the weight for range. That is a smaller EV, which may very well be heavier can have a higher range and efficiency.
The Cd matters for highway driving, but weight is the dominating factor for city driving.
Re: Mercedes‑Benz starts large‑scale production of electric axial flux motor
#290Earlier quoted context omitted.
>I wonder how developing electric motors compares to combustion engines. My hunch says that it’s the main reason the Chinese high-tech electronics industry was able to develop and iterate leading electric vehicles so fast. The talent had very little impact to be honest. The primary factor was a government looking 50 years down the road seeing that: 1. ICE engines have little to no long-term future in transportation.…
1. There is still no good answer for air transport, trans-oceanic shipping, long-haul trucking, and long-distance rail. ICE will be used there for a good while longer.
With mandatory breaks you have to take while trucking in a lot of countries, is it really that far out? I would imagine you could charge while you sleep.