F1technical.net

Andres125sx wrote: ↑

25 Sep 2019, 10:37

This looks quite revolutionary

https://www.youtube.com/watch?v=8gO60bt6rqk

henry wrote: ↑

25 Sep 2019, 11:06

Andres125sx wrote: ↑

25 Sep 2019, 10:37

This looks quite revolutionary

https://www.youtube.com/watch?v=8gO60bt6rqk

Interesting, but I would be concerned about oversell. At the beginning they show a graph where they claim to be at most 20% more efficient and at the end they show a battery that’s quarter the size. And they claim both motors 95% efficient but the graph ends before that is reached suggesting that the efficiency improvement is all at low speed, which may or may not match to a useful speed range.

Big Tea wrote: ↑

25 Sep 2019, 11:15

henry wrote: ↑

25 Sep 2019, 11:06

Andres125sx wrote: ↑

25 Sep 2019, 10:37

This looks quite revolutionary

https://www.youtube.com/watch?v=8gO60bt6rqk

Interesting, but I would be concerned about oversell. At the beginning they show a graph where they claim to be at most 20% more efficient and at the end they show a battery that’s quarter the size. And they claim both motors 95% efficient but the graph ends before that is reached suggesting that the efficiency improvement is all at low speed, which may or may not match to a useful speed range.

As the efficiency boost is at the lower end it would be less problematic to add a little gearing into the system add use the 'sweet spot', if it is as good as they claim. A 2 gear or CVT drive would not make much difference and would take little room. An independent review would be nice, but worthless unless it was a vehicle installation.

henry wrote: ↑

25 Sep 2019, 11:30

Big Tea wrote: ↑

25 Sep 2019, 11:15

henry wrote: ↑

25 Sep 2019, 11:06

Interesting, but I would be concerned about oversell. At the beginning they show a graph where they claim to be at most 20% more efficient and at the end they show a battery that’s quarter the size. And they claim both motors 95% efficient but the graph ends before that is reached suggesting that the efficiency improvement is all at low speed, which may or may not match to a useful speed range.

As the efficiency boost is at the lower end it would be less problematic to add a little gearing into the system add use the 'sweet spot', if it is as good as they claim. A 2 gear or CVT drive would not make much difference and would take little room. An independent review would be nice, but worthless unless it was a vehicle installation.

This theory is being tested by Tesla and Porsche as we speak.

Big Tea wrote: ↑

25 Sep 2019, 11:15

henry wrote: ↑

25 Sep 2019, 11:06

Andres125sx wrote: ↑

25 Sep 2019, 10:37

This looks quite revolutionary

https://www.youtube.com/watch?v=8gO60bt6rqk

Interesting, but I would be concerned about oversell. At the beginning they show a graph where they claim to be at most 20% more efficient and at the end they show a battery that’s quarter the size. And they claim both motors 95% efficient but the graph ends before that is reached suggesting that the efficiency improvement is all at low speed, which may or may not match to a useful speed range.

As the efficiency boost is at the lower end it would be less problematic to add a little gearing into the system add use the 'sweet spot', if it is as good as they claim. A 2 gear or CVT drive would not make much difference and would take little room. An independent review would be nice, but worthless unless it was a vehicle installation.

loner wrote: ↑

19 Sep 2019, 11:56

DAIMLER STOPS COMBUSTION ENGINE DEVELOPMENT .. Full focus on electric drive.
https://www.auto-motor-und-sport.de/tec ... lung-2019/
a decision that delayed just about 70 years sorta, no big deal obsolete is cool.
i lost interest in this thread i won't participate in it again.

Switched reluctance motors have existed almost as long as the internal combustion engine, but have suffered from weaknesses in performance which have limited their use in electric vehicles.

Unlike common DC motor types, in a switched reluctance motor power is delivered to windings in the stator rather than the rotor. This simplifies mechanical design because power does not have to be delivered to a moving part.

AEM’s breakthrough, the subject of a patent, has been to make it possible to drive the SR motor using the same power electronics as a permanent magnet motor

The rotor is made of a “soft” magnetic material such as laminated steel, with projecting magnetic poles. The stator also has a number of poles. When power is applied to the stator windings, the rotor moves to align the rotor pole with the nearest stator pole. To keep the rotor moving, an electronic control system switches on the windings of successive stator poles ahead of the rotor, so it continues to rotate.

Brake Horse Power wrote: ↑

09 Nov 2019, 20:54

Nice one!

Here is another promising company called Volabo. They are developing high power output electric motors at 48volts. This is obvious a lot safer than current high voltage systems and it allows them to work with cheaper components. Also their motor doesn't need rare earth metals and as icing on the cake they have developed a continuously phase shifting technology. So they have the benefits of several types of phase motors combined in one giving a greater efficiency.

https://youtu.be/1UBJqDGGRRU

https://volabo.com/

izzy wrote: ↑

09 Nov 2019, 22:38

Brake Horse Power wrote: ↑

09 Nov 2019, 20:54

Nice one!

Here is another promising company called Volabo. They are developing high power output electric motors at 48volts. This is obvious a lot safer than current high voltage systems and it allows them to work with cheaper components. Also their motor doesn't need rare earth metals and as icing on the cake they have developed a continuously phase shifting technology. So they have the benefits of several types of phase motors combined in one giving a greater efficiency.

https://youtu.be/1UBJqDGGRRU

https://volabo.com/

Cool! but 48v must mean a zillion amps and huge fat cables? isn't cabling why F1 runs at 1,000v?