From a3f593ea99a74d284cab019d965030f0960fc958 Mon Sep 17 00:00:00 2001 From: Candas1 Date: Mon, 3 Jan 2022 19:31:22 +0100 Subject: [PATCH] Updated Hoverboard Wheels (markdown) --- Hoverboard-Wheels.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Hoverboard-Wheels.md b/Hoverboard-Wheels.md index b6bdf78..195687f 100644 --- a/Hoverboard-Wheels.md +++ b/Hoverboard-Wheels.md @@ -23,8 +23,8 @@ 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).
-It was successfully tested with this firmware, resulting in a speed increase from rpms to rpms(with no load).
+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.
+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 Here are a few interesting builds with hoverboard wheels, you will find many more on Youtube !!!