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Updated Hoverboard Wheels (markdown)

Candas1
2022-01-04 00:07:51 +01:00
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Hoverboard-Wheels.md

@@ -23,7 +23,7 @@ Phases/hall sensor wires might have to be swapped.<br>
Update n_polepairs parameter in [BLDC_controller_data](https://github.com/EFeru/hoverboard-firmware-hack-FOC/blob/36953c6fe9ba90593d21150113459b0a4bb4e312/Src/BLDC_controller_data.c) if you have a number of pole pairs different than 15 for accurate RPM/Speed measurement.
# Wiring from Star to Delta
Hoverboard wheels can be rewired from Star to Delta to trade Torque for Speed, increasing the KV rate by a factor of 1.73 times (Square root of 3), and increasing the current by the same factor.<br>
Hoverboard wheels can be rewired from Star to Delta to trade Torque for Speed, increasing the KV rate by a factor of 1.73 times(√3), and increasing the current by the same factor.<br>
It was successfully tested with this firmware, resulting in a speed increase from 640rpms to 1120rpms with no load, so an increase of the Kv rating from 16 to 28, and a 0.39 Ohm phase to phase resistance, on wheels with 30mm magnets and 5 parallel wires.<br>
# Links