4 ms·

The motors are not really taking up a lot of useful space in the car and are not underpowered by any stretch so this tech needs to be price competitive. Like Hy

The motors are not really taking up a lot of useful space in the car and are not underpowered by any stretch so this tech needs to be price competitive. Like Hyundai said batteries are where we need to see advances. Don't get me wrong it is interesting and I am glad to see advances but I don't see this as a terribly useful advance today.

yetihehe 7y ago
I see it as a BIG advance for small drones. The same torque from smaller engine where every gram counts is a big win, you can replace that weight with more battery.
- kragen 7y ago
  What counts there is power density, not torque density, isn't it? Quadcopters don't typically gear their motors down, instead preferring to pitch the rotors at shallow angles of attack.
  - yetihehe 7y ago
    So, better for racing drones, they will be able to change speed of propellers faster, they already use higher angles to readuce propeller speed (gyroscopic effects are killing maneuvring). Shallow angles are better for efficiency.
Tepix 7y ago
Getting rid of a gearbox that weighs 70kg seems like a significant weight saving. They also claim more efficiency which could result in smaller batteries or more range.
- Shivetya 7y ago
  Well got to admit, the standard exaggerated imagery implies large battery savings where we really do not know how much it could imply and I bet it would be a big stretch to hit double digits. They may save on reduction gearing but recently Porsche went the other way by adding in a two speed transmission so as to improve high speed efficiency. Electrics would tend towards requiring heavier duty transmissions common to diesels simply because of torque but a good application of multiple gears in a transmission could benefit EVs depending again, on application. We would need to see the amount of electricity being consumed at different load levels and compare the cost of a transmission to increased batteries as to which is best for it. Personally, the less parts the better.
  - Cthulhu_ 7y ago
    In practice, "battery savings" will translate to "we'll do more with the same battery life"; see also: smartphones who have gotten 1000x as fast over the past decade (or whatever) and still only manage a day of intense use on a battery.
zelos 7y ago
Possibly useful for hybrids where you're trying to squeeze an electric motor in next to an existing ICE?
JoeAltmaier 7y ago
Perhaps it has its place -low-velocity lightweight vehicles? They are starting with a scooter, so perhaps they agree.
auiya 7y ago
The main use would be exactly what the article says - a higher output generator for when windmills operate at slow speeds. The car motor conceptualizations are purely there for click bait.
nerpderp82 7y ago
Cars are not where a motor like this will be applied. Exoskeletons, shoes, airplanes will all need lightweight, high power density, high torque, gear free motors.

yetihehe 7y ago

I see it as a BIG advance for small drones. The same torque from smaller engine where every gram counts is a big win, you can replace that weight with more battery.

kragen 7y ago
What counts there is power density, not torque density, isn't it? Quadcopters don't typically gear their motors down, instead preferring to pitch the rotors at shallow angles of attack.
- yetihehe 7y ago
  So, better for racing drones, they will be able to change speed of propellers faster, they already use higher angles to readuce propeller speed (gyroscopic effects are killing maneuvring). Shallow angles are better for efficiency.

Tepix 7y ago

Getting rid of a gearbox that weighs 70kg seems like a significant weight saving. They also claim more efficiency which could result in smaller batteries or more range.

Shivetya 7y ago
Well got to admit, the standard exaggerated imagery implies large battery savings where we really do not know how much it could imply and I bet it would be a big stretch to hit double digits. They may save on reduction gearing but recently Porsche went the other way by adding in a two speed transmission so as to improve high speed efficiency. Electrics would tend towards requiring heavier duty transmissions common to diesels simply because of torque but a good application of multiple gears in a transmission could benefit EVs depending again, on application. We would need to see the amount of electricity being consumed at different load levels and compare the cost of a transmission to increased batteries as to which is best for it. Personally, the less parts the better.
- Cthulhu_ 7y ago
  In practice, "battery savings" will translate to "we'll do more with the same battery life"; see also: smartphones who have gotten 1000x as fast over the past decade (or whatever) and still only manage a day of intense use on a battery.

zelos 7y ago

Possibly useful for hybrids where you're trying to squeeze an electric motor in next to an existing ICE?

JoeAltmaier 7y ago

Perhaps it has its place -low-velocity lightweight vehicles? They are starting with a scooter, so perhaps they agree.

auiya 7y ago

The main use would be exactly what the article says - a higher output generator for when windmills operate at slow speeds. The car motor conceptualizations are purely there for click bait.

nerpderp82 7y ago

Cars are not where a motor like this will be applied. Exoskeletons, shoes, airplanes will all need lightweight, high power density, high torque, gear free motors.