Neu - Y versus D windings

[BrianG]

@Vintage: I used the terms "wye" and "delta" for my search, so it came up with much more...

Based on the last post, it seems like it would be best to have the motors and ESC with 6 wire connections (a set for each coil) and the ESC could decide on the configuration depending on the speed the user is trying to attain. At slow speed, the ESC would configure as Y for max torque; at high speed, the ESC would reconfigure as delta. Wiring would be rather messy though, not to mention being a programming nightmare (from the firmware perspective)...

[VintageMA]

Originally Posted by BrianG

Based on the last post, it seems like it would be best to have the motors and ESC with 6 wire connections (a set for each coil) and the ESC could decide on the configuration depending on the speed the user is trying to attain. At slow speed, the ESC would configure as Y for max torque; at high speed, the ESC would reconfigure as delta. Wiring would be rather messy though, not to mention being a programming nightmare (from the firmware perspective)...

Not for nothing, but that is a totally awesome concept idea for essentially creating an automatic 2-speed e-transmission. No more of this I want high speed but will have to gear down to get torque and not overheat the motor, or I got a monster torque motor geared to the moon so I can get some speed out of it.

Neu / Castle - can you hear me?

[Peter Zicha]

Here is a very simplistic picture that gets to the point on how they are wired internally