Tesla patents techniques for improving motor power by changing the shape of some components

[MitchJi]

https://www.teslarati.com/tesla-patent-more-efficient-electric-motors/
Brief excerpt below:

Tesla has invented a technique for increasing its All-electric vehicles’ power and torque by simply adjusting the shape some of its electric motor’s components.

A recently published US patent application titled “Geometry of Rotor End Ring and Stator End Turns” describes how Tesla accomplishes this. According to the application, certain internal parts of an electric motor can be modified to reduce power losses from leaks in the magnetic field that effectively make the motor smaller.

The primary components of electric motors – the rotor and the stator – together generate the motion used to operate a vehicle. Simply, a magnetic field produced by electricity running through copper wires in the stator cause the magnetized bars of the rotor to spin. However, when the motor is operating at high speed, some of the electromagnetic force is lost, reducing the motor’s power.......

 

[eee291]

by simply adjusting the shape some of its electric motor’s components.

Omg no way!

 

[kenkad]

for axial flux motors, flux saturation in coils is a good place to start. This means a non linear winding distribution and laminated core structure to support it.

 

[fechter]

Tesla uses induction motors, so this is not field weakening per se.

Tesla has identified two places where this loss can be reduced – the end parts of the stator and rotor. The copper wiring in these parts is wrapped around cutout shapes, and after some testing, Tesla’s engineers learned that different shapes give different results. Per the application, “geometries for rotor end ring and stator end turns can be chosen in a way that improves performance or other characteristics of the motor.”
Overall, electric current flow becomes concentrated in different spots on the motor depending on the ‘geometry’ of these parts, thus an opportunity to limit any losses has presented itself by controlling where the concentrations happen. Tesla has filed this application to protect the process (‘method’) of building a motor with the geometry knowledge made part of the design and testing.

 

[MitchJi]

Some great information about Tesla motor technology is in this video, starting at about 45 minutes some interesting comments on solid state batteries by sandy Monroe (he has seen prototypes) motor technology starts about 48 minutes introduced by talking about patents:
[Youtube]2DucRxWz_58[/Youtube]

 

[MitchJi]

One more comment:
The controller on the M3 uses ceramic, not silicon.

Some more information here:
[Youtube]pgu6mkKZwNg[/Youtube]