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Search took 0.00 seconds. Search: Posts Made By: motorulf
Forum: Fossil Fuel Free 01-21-2017, 04:08 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
The precharge resistor value is a function of...

The precharge resistor value is a function of capacitance, time and voltage.
I dont have a formula though. Or... i found this...
Forum: Fossil Fuel Free 01-21-2017, 03:48 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
OK, here are the DIFF-files for my reverse...

OK, here are the DIFF-files for my reverse function hack.
I used source code from Jan-06-2017.
Paul, may i attach that version of source code here?

Diff.zip (http://improvisera.net/Diff.zip)
...
Forum: Fossil Fuel Free 01-21-2017, 03:49 AM
Replies: 3,480
Views: 915,767
Posted By motorulf
Yes, i was waiting for it for 10 minutes, I could...

Yes, i was waiting for it for 10 minutes, I could not notice it doing anything. I tried a couple of times.

Now i am working again, will be on tour for 4 months, no time to play with my electric...
Forum: Fossil Fuel Free 01-06-2017, 08:11 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
What about having a momentary switch for the...

What about having a momentary switch for the reverse. Then we could also use it for cruise control :snail:

Like this:
Motor is not rotating and the brake is applied, you push the button, it...
Forum: Fossil Fuel Free 01-06-2017, 06:15 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
I hade some success with the reverse. Now there...

I hade some success with the reverse.
Now there is full power going backwards too, but thats just thrilling :p
Not quite ready for public release yet, but soon.

I made a small adapter that...
Forum: Fossil Fuel Free 01-05-2017, 02:52 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Yes i can hold it with my hand, it is very weak. ...

Yes i can hold it with my hand, it is very weak.

I ran pi-test2
i got these results:
+0030,+0529,+0529,+0499,+0463,+0510,+0482,+0482,+0522,+0510,+0493,+0510,+0569,+0510,...
Forum: Fossil Fuel Free 01-05-2017, 02:11 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Yes, now itīs working.:thumbup: I have control...

Yes, now itīs working.:thumbup:
I have control over the motor now.
As you can see in the file, i just had to play around with it a bit.
Drawing a maximum of 8-9 amps from battery.

first_run.xls...
Forum: Fossil Fuel Free 01-04-2017, 02:17 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Unplugged current sensor cable, gave a hardware...

Unplugged current sensor cable, gave a hardware fault.
24V source is an adjustable power supply 0-30V, 0-10A set at 24.0V.
25V source (HV) is a lipo battery 6 cells 8Ah
12V source (for contactors)...
Forum: Fossil Fuel Free 01-04-2017, 12:40 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Yes i have capacitors :) I am connecting your...

Yes i have capacitors :)
I am connecting your controller to the HV side of my old controller, from the Think City -08.
http://improvisera.net/enova.jpg

And no, itīs a 2 pole pair, i just...
Forum: Fossil Fuel Free 01-04-2017, 06:53 AM
Replies: 3,480
Views: 915,767
Posted By motorulf
I have put a resistor on R101, it was a 4.7k so i...

I have put a resistor on R101, it was a 4.7k so i changed to 2k and put the 4.7k at R73.

Hooked up the pot like this:
http://improvisera.net/throttle.png
The red wire is connected via 2k...
Forum: Fossil Fuel Free 01-03-2017, 06:18 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
I managed to setup the throttle, i think. The...

I managed to setup the throttle, i think.
The motor is turning, which is good :)
But it just keep revving up, which is scary.
I disconnect the battery an let it calm down for a while.

When...
Forum: Fossil Fuel Free 01-03-2017, 02:38 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Yes i was shure, but was also very wrong haha I...

Yes i was shure, but was also very wrong haha
I made a mistake on the sensor side of the cable apparently, now that is fixed and that cleared the fault.
Thank you!!
Forum: Fossil Fuel Free 01-03-2017, 12:55 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
So, now i wanted to do some bench testing. I...

So, now i wanted to do some bench testing.
I have only contected 24v, throttle, led, rs232, current sensors and IGBTs.

What might cause the hardware fault?
Also i have measured all cables to the...
Forum: Fossil Fuel Free 12-31-2016, 02:36 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
http://improvisera.net/reversing.jpg

http://improvisera.net/reversing.jpg
Forum: Fossil Fuel Free 12-31-2016, 02:31 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
Ok, now i have been hacking away at Pauls code...

Ok, now i have been hacking away at Pauls code some more.
Now actually think this would work.
As the code is now, it uses maximum regen as maximum reverse. Not very elegant, i know, this will be a...
Forum: Fossil Fuel Free 12-30-2016, 12:53 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
...also, i guess i need to invert the throttle...

...also, i guess i need to invert the throttle value somewhere in the code to control the reversing. I havenīt figured it out yet.
Maybe not the throttle, maybe the IqRefRef or some other refref....
Forum: Fossil Fuel Free 12-30-2016, 12:41 PM
Replies: 3,480
Views: 915,767
Posted By motorulf
I see there is an unused input on the dsPIC, as i...

I see there is an unused input on the dsPIC, as i understand the code it was planned for use as a regen throttle input but i was never used because the PIC cannot read both this and the neighboring...
Showing results 1 to 17 of 17

 
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