DIY Onewheel with PeiPei Kart Hub motor?

[bocarones]

I'm looking to build a self balancing OneWheel(.com) myself.

Recently discovered below hub motor
http://www.peipeiscooter.com/default/11inch-350w-500w-wide-tire-hub-motor-phub-44
Anyone got experience with it? Looks like exactly what I need.

Below controller suits the motor; but would it be possible to control torque & motor direction via an Arduino?
http://www.peipeiscooter.com/default/brushless-dc-motor-control
Any other controller options I can consider?

Any feedback/help is greatly appreciated! Would be great if I could find someone who has already done such a build before.

 

[sl33py]

Google is your friend...

http://www.instructables.com/id/Self-balancing-one-wheeled-electric-skateboard/

https://www.google.com/search?q=DIY+onewheel&ie=utf-8&oe=utf-8

https://youtu.be/NbiYeF_Hk20

https://youtu.be/sSjI9kYWy4M

Good luck!

 

[bocarones]

Thx for the tip, but that's what I have already been doing the past two weeks

My questions are more specific:
- anyone has experience with that specific brushless hub motor from PeiPei (only one I can find that fits a kart wheel)
- feedback if the controller they provide can be used for self balancing (reverse direction, pwm steering via Arduino)
- suggestions on other brushless controllers that could be used for this

 

[flathill]

use a microworks 30b controller

https://github.com/EGG-electric-unicycle/documentation/wiki/MicroWorks-30B4-30kmh-controller-board-with-bluetooth

good find on the motor

how much torque does it have?

 

[bocarones]

A short update on where I am on my quest for creating a one wheel with the PeiPei hub motor & controller:

- I'm assuming the motor & controller will provide sufficient torque to make a self balancing board (I would go for the 36V motor)
- therefore it comes down to the question: can I drive the controller via Arduino? This requires two things:
1. throttle control via 5V signal. In order to do this I need to convert the PWM signal of the arduino into a signal between 0V and 5V. I will use RC filter for this, based on information found here: http://www.instructables.com/id/Analog-Output-Convert-PWM-to-Voltage
2. in order to trigger the reverse direction of motor power, I need Arduino to short/interrupt the reverse (2pins). I think this can be done via an analog switch, based on information found here: http://forum.arduino.cc/index.php?topic=186034.0;prev_next=next#new

I have ordered the components to test 1 and 2. I will try it first on my eBike controller (I would test 2. on the 2 pin brake interrupt), if it works there I'm assuming it will also work for the PeiPei controller...

 

[ShreddinPB]

A short update on where I am on my quest for creating a one wheel with the PeiPei hub motor & controller:

- I'm assuming the motor & controller will provide sufficient torque to make a self balancing board (I would go for the 36V motor)
- therefore it comes down to the question: can I drive the controller via Arduino? This requires two things:
1. throttle control via 5V signal. In order to do this I need to convert the PWM signal of the arduino into a signal between 0V and 5V. I will use RC filter for this, based on information found here: http://www.instructables.com/id/Analog-Output-Convert-PWM-to-Voltage
2. in order to trigger the reverse direction of motor power, I need Arduino to short/interrupt the reverse (2pins). I think this can be done via an analog switch, based on information found here: http://forum.arduino.cc/index.php?topic=186034.0;prev_next=next#new

I have ordered the components to test 1 and 2. I will try it first on my eBike controller (I would test 2. on the 2 pin brake interrupt), if it works there I'm assuming it will also work for the PeiPei controller...

Out of curiosity, what are you going to use as the hand control?

 

[bocarones]

A onewheel does not require hand control, direction & speed is driven by positioning your bodyweight.

I will use a deadman's switch, to power of motor when I fall, see below link on ebay
http://www.ebay.com/itm/311313223287

 

[sioux612]

Hey,

I found this post while looking for a go kart hub motor, just like PeiPei sells.

This actually is the first time I'm looking at a chinese sellers page and I'm a little confused.
They don't say a KV value, say flexible current but quite a limited max RPM of 700.

Does anybody know if that value is the actual max speed of the motor? Because 10kph (700x11x2.54xPi/60/100) would be a little on the low side for my project.

I want to build a standing kick scooter with go kart wheels and no chain etc. and would like 15+kph speeds.

Edit: Brainfart, apparently the top speed is 32kph, which should be enough