The Superior Continuous Torque (SCT) motor punches harder for longer, allowing EV designers to run smaller, lighter electric motors - Mahle
Posted on 07/14/2022 6:30:24 AM PDT by Red Badger
Tier-one auto parts supplier Mahle has announced a groundbreaking "superior continuous torque" (SCT) motor for electric vehicles, capable of continuously pounding out more than 90 percent of its peak power without overheating – and it'll work without magnets.
Electric motors, unlike combustion engines, are often specified with separate peak and continuous (or nominal) power ratings. That's because running them flat-out for long periods can generate enough heat to damage components, so manufacturers build in thermal limiting systems that reduce power output down to the continuous level when they start overheating. The difference between the peak and continuous figures reflects the performance of the motor cooling system.
Here are a couple of examples. At the cheaper end of the scale would be something like the e-motor in the Ox Patagonia electric motorcycle. Peaking at 11 kW, it's so badly cooled that it can only handle a continuous 6 kW – 55 percent of the peak power. Energica's fancy new EMCE motor, on the other hand, peaks at 126 kW, but can handle a continuous 110 kW (87 percent of the peak) thanks to a very effective cooling system.
Mahle – a huge German parts supplier consistently posting sales over US$10 billion a year – says its new SCT motor takes things up a notch, with continuous power ratings over 90 percent of the peak. It uses an innovative oil cooling system that draws in oil through a central intake, then uses the centrifugal force of the spinning rotor to pump the oil up and around the stator coils surrounding it. The heat drawn out can be harvested for use elsewhere around the vehicle if required, or extracted through a radiator.
(Excerpt) Read more at newatlas.com ...
The Superior Continuous Torque (SCT) motor punches harder for longer, allowing EV designers to run smaller, lighter electric motors - Mahle
if people wanted ev’s then we’d all be driving ev’s. we don’t want them.
Cool!
Now electric cars can have heaters........................../s
looks like there is plenty of room for the squirrel
No magnets? No electrical induction of a magnetic field? What physics are in play?
Still uses oil, but it puts us one step closer to cars powered by unicorn farts.
AH-HA!!!
EV motors PRODUCE HEAT POLLUTION!
GLOBAL WARMING!
BAN THEM!
We may have no choice in the matter.
Hav eyou been to a dealeship lately?
No NEW cars on the lot............
I hope these in-the-box motor designers chose vegan castor bean oil. Have they tried hollow copper wire with forced air? Electric current doesn’t use the center of a wire.
True. But it is a heatsink...................
Castrol GTX, the best oil ever made!.....................
How is that? How are they staying in business? Is the US government secretly subsidizing the auto industry while we “transition”?
Have they not heard of a continuous duty rated motor?
The Ford, Chevy, Toyota, Mazda and Cadillac/GMC dealers here all have practically empty lots. The only vehicles they have are a few high end 4WD Trucks that nobody needs.
The local Cadillac/Buick/GMC dealer did something unusual to try and get sales, they apparently went out and bought a dozen used Corvettes and have them lined up across their front lot............
Would have to be a very skinny squirrel!...................
Generally the inventory over here is not that bleak.
I do get a kick out of the local BMW dealership commercial that boasts “we guarantee you will not pay over sticker price!”
Gee....that’s mighty nice of ‘em.
SMH
My local Toyota dealer’s website says they have 58 new cars in inventory. Is that a lot or a little, historically speaking?
Pumping the oil up and around the stator coils using the spinning rotor does not come energy-free. How much of the 90% peak power will this oil pumping cost?
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