Search found 81 matches

by voti
Fri Jun 20, 2025 6:44 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I swapped and connected the brown and red. On pin 2 I'm reading a straight line and pin 3 nothing. My yellow is still connected to pin 1 and my green is now connected on pin 3

I've also attached pictures of the patterns I got when spinning the motor manually.
I had my resolver disconnected when ...
by voti
Fri Jun 20, 2025 6:04 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

Yes I'm still on the FOC firmware, and yes the ligjt bulbs are in parallel with the motor. Ibhave them connected to monitor output PWM.

If i change resolver sin and cos, should I replace them with the ENC A or B. On the tutorials video, Damien had brown and red for his sin and cos. Is that what ...
by voti
Thu Jun 19, 2025 5:41 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

OK. So I swapped pin 3 and 6 and happened to might have happened to get it right for the pedal. I disconnected my resolver because I think that's where the problem is but I'll get to that shorty. I had my inverter in Runmode and the Delta connected light bulbs lit up. When I pressed the pedal, they ...
by voti
Thu Jun 19, 2025 9:12 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I pressed my pedal and Potnom remained 0% all the time. What changed was the values on pot1 and pot2 the valus kept increasing until they reached 4095 when fully pressed. I could only see the changes of this values by refreshing everything I press harder and harder.

I also changed start and add it ...
by voti
Wed Jun 18, 2025 6:28 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

Below I've attached my entire spot values, please go through and check for all the settings you want to see pot1 and pot2 and any other that are important for testinh stage.. Also please check for faults that might appear.

I'm planning on connecting a high Amp 12v battery for my next test to my HV ...
by voti
Wed Jun 18, 2025 9:07 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I changed my resolver connection today and connected it as pair discussed in the screenshot attached below.
I tested first without it connected and I got the same results of having the Delta connected light bulbs connected on the inverters three phase output light up and turn off again continuously ...
by voti
Tue Jun 17, 2025 8:03 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle


Is this what you used as reference?
https://openinverter.org/forum/viewtopic.php?p=14153#p14153


I connected my resolver the way Damien did in the tutorial video. Is it correct or should I change to
pin 1 = yellow ( enc b)
pin 2= green and brown (sin a and cos a)
pin 3= red ( enc a)
pin 4 ...
by voti
Tue Jun 17, 2025 6:11 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

For my resolver i have connected brown and red together and connected them to pin 2 and i have yellow and green connected to pins 1 and the other to pin 3? My excitation is connected on pins 4 and 5, I heard Damien say you can swap the excitation pins it's OK.
My problem is that I'm not sure if ...
by voti
Fri Jun 13, 2025 3:02 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

Incase you missed it.
I have flashed FOC firmware and I can see changes in the parameters.
Please guide me on how to test spin the motor now because the parameters have changed. Under testing now I have manual start, manualiq and manualid

Another question is, should I still set ocurlim -1 even with ...
by voti
Wed Jun 11, 2025 8:56 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle


Well you're half way there. Definitely at a dead end for me, I've never run the FOC firmware


You don't know how much I appreciate the help I'm getting from this forum, especially Johannes. I may not have the knowledge of how electronics work but I'm learning everyday. This project means so much ...
by voti
Tue Jun 10, 2025 9:17 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I have flashed FOC firmware and I can see changes in the parameters.
Please guide me on how to test spin the motor now because the parameters have changed. Under testing now I have manual start, manualiq and manualid

Another question is, should I still set ocurlim -1 still even with the new FOC ...
by voti
Mon Jun 09, 2025 2:53 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I connected my resolver and on the spot values I got an angle reading, does that mean that I've connected it correctly ?

Even with the resolver connected I still could t get the motor spinning, which is sad.

I've taken screenshots of my spot values for you guys to please go through and see if my ...
by voti
Sun Jun 08, 2025 8:03 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle


My question is if the correct combo is brown + yellow
Red + green
Does it mean i should link brown and red together and connected them to pin 2 and the have yellow and green connected to pins 1 and the other to pin 3?

Another question is to which pins on the control board should I connect the ...
by voti
Sat Jun 07, 2025 6:25 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

When watching the collab video of Johannes and Damien, the resolver part of it. The final working pair for the resolver was brown + yellow and red + green.

When Damien first tested these pairs to see which one was the correct one the first group had yellow + brown and green + red. What he did was ...
by voti
Sat Jun 07, 2025 3:04 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

Please don't mind the noise on the scope but I think the duty cycle with PWM is there

by voti
Sat Jun 07, 2025 1:44 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

My encmode was set to resolver but I didn't have my resolver connected to anything yet. So I set encmode 0 in custom command but the motor still won't spin.

My research answers also suggested set focctrl to 0 under custom commands,I did and the results were "unknown parameter focctrl"
by voti
Thu Jun 05, 2025 12:30 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I removed the light bulb and tested, the transaxle didn't rotate. All I noticed was the output shaft rotating back and forth on the same position as seen on the previous video. The shaft was a bit more aggressive as i increased ampnom, it seemed to be receiving enough power to rotate, but couldn't ...
by voti
Wed May 28, 2025 8:41 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I just tested with the car battery. I connected a 12v 55w light bulb in series with the positive line of the car battery which now powers the HV side of the inverter.

I put in the parameters
Set ocurlim -1
Boost 37000
DefaultForward
Manual start_on
Ampnom 70%
I started with fslipspnt 1 and ...
by voti
Tue May 27, 2025 6:48 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

At some point of this troubleshooting, they told me to disconnect all the light bulbs and Resistors in series connection. And ever since I didn't connect them back on.

Should I reconnect the 55w light bulb on the HV positive?
by voti
Sun May 25, 2025 10:04 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle


What was the light bulb that is connected in series on your High Voltage circuit doing? Does it light up brightly?


The lights bulbs were dim at fslipspnt 3, 10 %ampnom but and their brightness grew at 15% all the way to 30% and after that they went dark and stopped blinking. Above 30% ampnom ...
by voti
Sat May 24, 2025 2:31 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

<r><QUOTE author="MattsAwesomeStuff" post_id="82939" time="1748024403" user_id="176"><s>[quote=MattsAwesomeStuff post_id=82939 time=1748024403 user_id=176]</s>
Set your boost to 20 000.
<e>[/quote]</e></QUOTE>
I did test with Boost at 20 000 and it didn't spin. RetroZero said he updated the wiki to ...
by voti
Wed May 21, 2025 9:15 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

I tested with Boost at 3700 but still the motor didn't spin. I've posted a link below of the testing process. Please watch it in full screen due to low picture quality. I had to compress the video for it to be uploaded Here on the forum only to find that the file format isn't supported. I had ...
by voti
Tue May 20, 2025 1:34 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

Having a close look at it made me realize that it might be so.

Continuing with the tests. I connected my transaxle to the inverter three phase output and did as step 10 on the wiki instructed me to.
"Step 9 : Web Interface Basic parameters (
stm32_sine. bin) set up -to confirm PWM
outputs : Full ...
by voti
Tue May 20, 2025 6:10 am
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

RetroZero wrote: Mon May 19, 2025 7:53 pm Did I understand you provided 12v to Pins 11 and 12?
Yes I did. I had connected this pins as per the connection diagram i found on the wiki, Please correct me if I had them wrong.
Check attached screenshot.
by voti
Mon May 19, 2025 7:20 pm
Forum: Toyota/Lexus
Topic: EV Conversion using prius gen 2 inverter/transaxle
Replies: 162
Views: 48916

Re: EV Conversion using prius gen 2 inverter/transaxle

johu wrote: Mon May 19, 2025 6:29 pm Woohoo
Congratulations, the basics are sorted
You are the best man. Thank you so much. You don't know how much this means to me.