EFeru/hoverboard-firmware-hack-FOC
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Updated Hoverboard Wheels (markdown)

Candas1
2022-01-03 18:55:29 +01:00
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Hoverboard-Wheels.md

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Hoverboard wheels come in different sizes(4.5",6.5",8",8.5",10"), different printing, with tube or tubeless.<br> Hoverboard wheels come in different sizes(4.5",6.5",8",8.5",10"), different printing, with tube or tubeless.<br>
![Hoverboard Wheel](https://github.com/EFeru/hoverboard-firmware-hack-FOC/blob/master/docs/pictures/hoverboard_wheel.JPG) ![Hoverboard Wheel](https://github.com/EFeru/hoverboard-firmware-hack-FOC/blob/master/docs/pictures/hoverboard_wheel.JPG)
All have been successfully used with this firmware as the wheel share those same characteristics: All have been successfully used with this firmware as the wheel share those same characteristics:
- same motor winding - 15 pole pairs
- 30 pole pairs
- Wye/star wiring - Wye/star wiring
- Hall sensors are 120° apart - Hall sensors are 120° apart
- 4° resolution - 4° resolution
@@ -15,12 +15,12 @@ Unfortunately the quality of the wheel might differ, over the years the inner de
- different number of coil parallel wires(3,4,5) and thickness - different number of coil parallel wires(3,4,5) and thickness
In fact, you can end up with wheels being rated 250W,300W or 350W.<br> In fact, you can end up with wheels being rated 250W,300W or 350W.<br>
Depending on your project you might want to open your wheels and check how it's built, as it can result in less power and more heating.<br> Depending on your project you might want to open your wheels and check how it's built, as it can result in less power and overheating.<br>
# Using the firmware with other wheels # Using the firmware with other wheels
The firmware might work with different type of Motor/Wheels.<br> The firmware might work with different type of Motor/Wheels.<br>
Phases/hall sensor wires might have to be swapped.<br> Phases/hall sensor wires might have to be swapped.<br>
You might have to update the number of [pole pairs parameter](https://github.com/EFeru/bldc-motor-control-FOC#parameters) in the FOC model for accurate RPM/Speed measurement. Update the number of [pole pairs parameter](https://github.com/EFeru/bldc-motor-control-FOC#parameters) in the FOC model if it's different than 15 for accurate RPM/Speed measurement.
# Wiring from Star to Delta # Wiring from Star to Delta
Hoverboard wheels can be rewired from Star to Delta to trade Torque for Speed, it was successfully tested with this firmware.<br> Hoverboard wheels can be rewired from Star to Delta to trade Torque for Speed, it was successfully tested with this firmware.<br>
@@ -30,7 +30,7 @@ Here are a few interesting builds with hoverboard wheels, you will find many mor
* [Mounting bigger tires on a 6.5" wheel](https://www.youtube.com/watch?v=oUuCi9lp9IE) * [Mounting bigger tires on a 6.5" wheel](https://www.youtube.com/watch?v=oUuCi9lp9IE)
* [Extending the shaft on a 6.5" wheel](https://www.youtube.com/watch?v=aJ_qoiFvPzs) * [Extending the shaft on a 6.5" wheel](https://www.youtube.com/watch?v=aJ_qoiFvPzs)
* [Mounting a disk brake on a 6.5" wheel](https://www.youtube.com/watch?v=GWQx6ymAfUk) * [Mounting a disk brake on a 6.5" wheel](https://www.youtube.com/watch?v=GWQx6ymAfUk)
* [Delta rewiring ona 6.5" wheel](https://www.youtube.com/watch?v=sO9VX6ElDfY) * [Delta rewiring on a 6.5" wheel](https://www.youtube.com/watch?v=sO9VX6ElDfY)
* [3D printed Mecanum wheels](https://hackaday.com/2021/06/25/3d-printed-mecanum-wheels-for-hoverboard-motors/) * [3D printed Mecanum wheels](https://hackaday.com/2021/06/25/3d-printed-mecanum-wheels-for-hoverboard-motors/)
* [Nice teardown with explanation of the characteristics](https://discourse.odriverobotics.com/t/project-hoverarm/441/2?u=madcowswe) * [Nice teardown with explanation of the characteristics](https://discourse.odriverobotics.com/t/project-hoverarm/441/2?u=madcowswe)
* [Torque/Price ratio](https://youtu.be/_VUtfK4bCl8?t=33) * [Torque/Price ratio](https://youtu.be/_VUtfK4bCl8?t=33)