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Discussion Starter · #1 ·
A couple of friends and I just bought a large pile of Yasa axial flux motors and controllers at Makani's going-out-of-business auction.

Makani was a Google X company that spent a lot of money on wind power kites:
and yesterday open sourced all their code, including motor firmware:
https://github.com/google/makani/tree/master/avionics/motor

The motors are similar to and larger than the Yasa 750R:
YASA 750 | YASA Limited
which is an axial flux motor rated at 790Nm peak torque, 200kW peak power.
The Makani controllers have exotic 1700V SiC half bridges, I've posted a teardown here:
Yasa/Makani controller teardown - Endless Sphere

We are now working on getting the Makani controllers operational using the open sourced firmware, and also building our own control board using TI Instaspin to drive the Makani power stage. Here's a video of the first spin using a lab supply with a TI LAUNCHXL-F280049C and BOOSTXL-DRV8320RS:
http://rp.to/7t01q
 

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Discussion Starter · #3 ·
It was straightforward to compile the Makani code from https://github.com/google/makani , download it to the Makani Ozone controllers, and have the motors spinning using the Makani motor_client utility. It's really nice code, well written and commented.
 

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Discussion Starter · #5 ·
Sorry, I'm keeping all the Makani controllers I bought.
The components and engineering are the best I've seen, nothing else comes close.

I have read that controllers such as:
BAMOCAR-PG-D3-700-100/160
Sevcon Size 10 Gen 4
Rinehart PM150DX

should work with the Protean PD18 and the Yasa motors
 

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Discussion Starter · #6 ·
We managed to get our Makani motors spinning by building a very simple metacontroller - i.e. controls the Makani controller -that broadcasts omega setpoint messages on the POF network used by the Makani Ozone controllers. (I'd tell a joke here about UDP, but not everyone would get it...)

Here's a video:

In the little black box is a Pi 3 with an ADS1110 for A/D of the Prius throttle pedal, a Fiberfin POF to ethernet converter, and a couple of power supplies. The open source Makani code made this easy.
 
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