From 432de5050121658e2d322326c55d6fac6b37ff1f Mon Sep 17 00:00:00 2001 From: Candas1 Date: Tue, 4 Jan 2022 00:07:51 +0100 Subject: [PATCH] Updated Hoverboard Wheels (markdown) --- Hoverboard-Wheels.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Hoverboard-Wheels.md b/Hoverboard-Wheels.md index 5ee2984..7c166b0 100644 --- a/Hoverboard-Wheels.md +++ b/Hoverboard-Wheels.md @@ -23,7 +23,7 @@ Phases/hall sensor wires might have to be swapped.
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.
+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.
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.
# Links