Search found 3563 matches
- Thu Dec 27, 2018 4:46 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
Well, got the car home today and tested the spare motor. It is indeed 80ppr on the encoder. Did a little bit of playing and still pritty much the same. ie hits current limit when trying to accelerate. This gets me thinking about a possible hardware problem with my Enova board. What would happen if t...
- Wed Dec 26, 2018 9:28 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
This is probably nuts but what if the encoder bearing data sheet is counting 80 pulses over 2 channels and its really a 40ppr per channel output?
- Wed Dec 26, 2018 8:30 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
I guess it's possible but I hope not. Going to get the car home tomorrow so hopefully will get to the bottom of it.
- Wed Dec 26, 2018 3:26 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
Found this interesting data sheet.
- Wed Dec 26, 2018 2:22 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
I had set fweak high to try and reduce motor current. Almost like the motor is not making any back emf.
- Wed Dec 26, 2018 2:00 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
One other thing of note is I think this is a delta connected motor if that makes any difference?
- Wed Dec 26, 2018 1:59 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
I went down to the car today and changed to the correct 80 ppr setting for the encoder. Sadly however this didn't fix the problem although the motor does run much smoother. The main problem seems to be very high motor amps from the start. With the second parameter set, basically changed fslipmin to ...
- Tue Dec 25, 2018 10:20 am
- Forum: General
- Topic: Welcome to the forum - please read if you're new
- Replies: 90
- Views: 28307
Re: Welcome to the forum
Merry Christmas everyone
- Mon Dec 24, 2018 4:06 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
No I'm not sure:) I just measured the pulses on the scope but could easily have made an error. That could very well be the answer. Thanks very much:)
- Sun Dec 23, 2018 9:03 am
- Forum: Tesla
- Topic: New V4 Small drive unit hardware
- Replies: 2
- Views: 1385
New V4 Small drive unit hardware
For those interested I have released V4 of the small drive unit hardware on Github :
https://github.com/damienmaguire/Tesla-Front-Drive-Unit
Now has onboard WiFi.
https://github.com/damienmaguire/Tesla-Front-Drive-Unit
Now has onboard WiFi.
- Sun Dec 23, 2018 9:01 am
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
It uses an AB encoder bearing with 75ppr. I did have a noise issue on the speed signal but it is now clean. I think Johannes has a good point about the slip. I'll give this a try.
- Sat Dec 22, 2018 5:07 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Re: Ansaldo Motor
Can't seem to add picture of the motor plate. Error parsing server response.
- Sat Dec 22, 2018 5:05 pm
- Forum: Inverters / Motor Controllers
- Topic: Ansaldo Motor
- Replies: 47
- Views: 10965
Ansaldo Motor
My new Ansaldo motor in the E39 hates me. Finally got the cooling done today and decided to go try some tuning. Not very successfully. Can't get more than about 30 amps of battery current into the inverter but motor current very high. Speed signal is clean and current sensors are reading correctly. ...