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Forum: Fossil Fuel Free 05-29-2020, 11:28 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
The wires are: 8 wires for resolver. It goes...

The wires are:
8 wires for resolver. It goes right to a plug on the motor.
+12v and gnd
CAN
Forum: Fossil Fuel Free 05-08-2020, 09:20 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
That looks great!! My goodness, I haven't looked...

That looks great!! My goodness, I haven't looked at the code in quite a while. Could you type "config" and post that here?

Do you have max-regen-position < min-regen-position <...
Forum: Open ReVolt: open source DC motor controller 02-20-2020, 01:21 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
Thanks Ben! I will email what I have later today.

Thanks Ben! I will email what I have later today.
Forum: Open ReVolt: open source DC motor controller 02-20-2020, 12:42 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
Oh, yes if the contactor was making intermittent...

Oh, yes if the contactor was making intermittent contact, during the times it was not making contact, the pwm would ramp up to 100% trying to force the current feedback to match the throttle position...
Forum: Open ReVolt: open source DC motor controller 02-19-2020, 04:36 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
jedsmd, could you try rtd-period 100 That...

jedsmd, could you try
rtd-period 100

That should stream the data for your version of the software I think. Here's a list of the commands:
char command0[] = "config";
char command1[] = "save";...
Forum: Fossil Fuel Free 09-01-2019, 11:20 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
EBike first test with diy controller

Here's a first test with a TO-247 mosfet controller.
https://www.youtube.com/watch?v=PU-xj9ljcEc&lc=z23pyrnxlpblddzja04t1aokgqx0qddqsvqpkbcoms2pbk0h00410
Forum: Fossil Fuel Free 07-23-2019, 06:44 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
Here's a quick demonstration of the dyno with one...

Here's a quick demonstration of the dyno with one motor running in torque mode, and the other running in speed mode. I'm getting some really great data, too. The big question I had was about...
Forum: Fossil Fuel Free 07-06-2019, 01:40 AM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
I've almost got a dyno set up. Very soon there...

I've almost got a dyno set up. Very soon there will be lots of testing that can be done. Here's a picture from earlier this week.https://i.imgur.com/r9s052d.jpg
Forum: Fossil Fuel Free 03-10-2019, 03:09 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
It doesn't use the battery voltage for anything...

It doesn't use the battery voltage for anything at this time.
Forum: Fossil Fuel Free 02-26-2019, 06:16 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
Sure, just email me at...

Sure, just email me at PandSPowerElectronics@gmail.com
Forum: Fossil Fuel Free 02-16-2019, 09:29 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
I don't know how to do a wiki, but I can email...

I don't know how to do a wiki, but I can email you a bunch of stuff if you want. It's pandspowerelectronics@gmail.com
there was a wiki at some point, but I don't know where it is now.
Forum: Fossil Fuel Free 05-26-2018, 07:42 AM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
My understanding is, for motors with buried...

My understanding is, for motors with buried permanent magnets (high saliency they call it for some reason), you get some torque from the steel in the rotor, near the edges of the magnets, almost like...
Forum: Open ReVolt: open source DC motor controller 05-15-2018, 06:43 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
They also have some similar to that on...

They also have some similar to that on Mouser/Digikey. The 4 pins on the ends are the gate and emitter that plug into the control/driver board. then the board turns the IGBTs off and on.
Forum: Fossil Fuel Free 05-15-2018, 04:05 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
They call them economizers I think. I've never...

They call them economizers I think. I've never made my own economizer before though. Make sure you reduce Kp and Ki by the same proportion that you increase the voltage. So, if your test was at...
Forum: Fossil Fuel Free 05-15-2018, 10:13 AM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
I've only had to do it once too. Could there be...

I've only had to do it once too. Could there be a loose connection anywhere?
Forum: Open ReVolt: open source DC motor controller 05-14-2018, 12:40 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
The picture has 600v 600amp IGBTs. This type:...

The picture has 600v 600amp IGBTs. This type:...
Forum: Open ReVolt: open source DC motor controller 05-14-2018, 12:17 PM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
Yes, but I just had a picture of a pretty big...

Yes, but I just had a picture of a pretty big one. You can find them quite a bit smaller that have enough power to run it just fine. Mean Well has some 30w ones that would work fine that are almost...
Forum: Open ReVolt: open source DC motor controller 05-14-2018, 11:34 AM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
There's no power board. It just plugs into big...

There's no power board. It just plugs into big IGBT modules like this (this is a bunch of pictures showing one possible assembly process for both the AC and DC motor controllers):...
Forum: Open ReVolt: open source DC motor controller 05-14-2018, 10:53 AM
Replies: 7,381
Views: 2,551,392
Posted By MPaulHolmes
The old DC board on the website is for the 144v...

The old DC board on the website is for the 144v 500amp controller. The new one is here:...
Forum: Fossil Fuel Free 05-11-2018, 10:52 AM
Replies: 55
Views: 8,049
Posted By MPaulHolmes
Thingstodo So with the 600vDC you aren't allowed...

Thingstodo So with the 600vDC you aren't allowed to convert it to 3 phase? Or you are just not allowed to convert single phase grid to 3 phase?
Forum: Fossil Fuel Free 05-10-2018, 12:39 AM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
Also, don't forget pole-pairs 2 ...

Also, don't forget

pole-pairs 2
motor-type 1
Forum: Fossil Fuel Free 05-09-2018, 12:47 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
Actually, do the run-pi-test2 first. That is a...

Actually, do the run-pi-test2 first. That is a locked rotor test (but you don't have to lock the rotor). It doesn't require knowledge of the rotor flux angle, so you don't need the angle offset for...
Forum: Fossil Fuel Free 05-07-2018, 09:46 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
What are the specs of this motor? Like, the full...

What are the specs of this motor? Like, the full load current, and the voltage it's designed to run at (AC voltage), the number of pole pairs (if the nameplate says around 3500 at 60Hz, it's 1 pole...
Forum: Fossil Fuel Free 05-07-2018, 06:50 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
Holy cow I missed a lot! Fortunately, I am now...

Holy cow I missed a lot! Fortunately, I am now unemployed, and can check here more often. haha.

For thingstodo:
You have to pretend that you are from the matrix... Remember how they see the...
Forum: Fossil Fuel Free 05-02-2018, 01:58 PM
Replies: 3,431
Views: 980,577
Posted By MPaulHolmes
I never use caps there but it wouldnt hurt if...

I never use caps there but it wouldnt hurt if they were sufficiently small capacitance. The chip has a noise rejection feature built into the QEI module.
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