Search found 572 matches

by jon volk
Wed Jun 26, 2019 12:54 pm
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 137301

Re: Tesla Large Drive Unit Support Thread

Sorry to see. I don't know how common this is, but here is a photo from the first time I had the inverter cover off. Note that there were disturbances in the re-enterable encapsulant before I ever applied power to this unit. You'll need to click on it for better detail. I didnt pay much attention to...
by jon volk
Fri Jun 14, 2019 11:55 am
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

Well I have seen it but feel it is very limited...would like a complete list :-) I bought a fully build and tested Tesla LDU card and am trying to get it up and running. So far I connected Ignition 12V, ground, start button. I don't get it to respond to the start signal, I can only activate it manu...
by jon volk
Thu Jun 06, 2019 6:04 pm
Forum: Nissan
Topic: Current limit error
Replies: 13
Views: 2859

Re: Current limit error

Not on a leaf setup, but Ive had a blown IGBT cause an overcurrent on start issue.
by jon volk
Wed Jun 05, 2019 8:35 pm
Forum: Inverters / Motor Controllers
Topic: Inverter Firmware v4.17.R
Replies: 6
Views: 1636

Re: Inverter Firmware v4.17.R

On the next update, would it be possible to add a decimal to the value of the throttle and brake ramp settings? That would offer a greater level of tuning resolution, particularly if using the throtramp as a launch control by going WOT before letting off the brake. My initial thought would have been...
by jon volk
Thu May 23, 2019 6:24 pm
Forum: Tesla
Topic: Tesla Large Drive Unit Support Thread
Replies: 802
Views: 137301

Re: Tesla Large Drive Unit Support Thread

I too had to swap signal wires at the encoder. I strongly suggest powering up at low voltage and verify smooth running. My symptom was a slow jogging. I swapped the middle two wires and immediately had smooth running. It does seem that there were some variations through the years. Perhaps its just a...
by jon volk
Fri May 17, 2019 9:33 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

The pressure sensor works brilliantly. This has been the smoothest and most usable transition from throttle to braking I’ve experienced with this motor.
by jon volk
Fri May 17, 2019 6:48 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

You should set the brake ramp low, just like the throttle. Unless you want your rear wheels to lock up on a tesla motor. I’d argue even a setting of 1 is too fast for aggressive regen. I almost feel like we would benefit from greater resolution by increasing the time period of the ramp per 100ms in...
by jon volk
Thu May 16, 2019 11:53 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

OK, so I’ve got a 1500psi transducer all set up for pot2. Min (no pedal) at 750 and max (standing on the pedal) at 4095. Now, will this increase or decrease effective brakenom regen with pedal input. I’d like to set it up that it brakes harder the more the pedal is pressed. I have reduced hydraulic ...
by jon volk
Mon May 13, 2019 4:36 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

Ahhhhh I think I've got it. So pin 2 is required to enable pedal braking and the POT2 does not provide any discreet trigger, only acts a trim value to brknompedal/brkmax.
by jon volk
Mon May 13, 2019 12:47 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

So we've had some discussion regarding go paramaters, so Ill sway it toward stopping. Just to clarify the brake parameters slightly. brknompedal : Preset level of regen when 12v is applied to pin 2 on the AMP connector. brkpedalramp: Ramp up time from 0% to brknompedal % setting. From my experience,...
by jon volk
Thu May 09, 2019 8:01 pm
Forum: General
Topic: Weird Speedometer Question
Replies: 72
Views: 12178

Re: Weird Speedometer Question

Correct! Except mine is a 9 tooth wheel. Im undecided which route to take. I can buy a GPS sender for around $150 which would do the trick in relative plug and play fashion.
by jon volk
Thu May 09, 2019 7:59 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

johu wrote: Thu May 09, 2019 7:08 pm I reckon the "bad" parameters should be flagged hidden

Code: Select all

flag encmode hidden
That will prevent them to show up at all. Don't forget to "save" after flagging
Is this active on 4.12 or just on the latest push?
by jon volk
Thu May 09, 2019 12:26 pm
Forum: General
Topic: Weird Speedometer Question
Replies: 72
Views: 12178

Re: Weird Speedometer Question

Another possible thought is motor speed should be directly proportional to ground speed. If you could take a canbus input of motor speed, wouldnt it then become a simple a/b = c output pulses equation?
by jon volk
Thu May 02, 2019 6:45 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

Great explanation. Interesting to note that I had a couple recurring over current faults from a dead stop when the boost was at the pre-loaded 2000 value. That seems to have gone away after backing that value down to 1500. I plan on doing some datalogging over the weekend to get a better understandi...
by jon volk
Thu May 02, 2019 5:46 pm
Forum: User Interface
Topic: Log spot values to .csv file?
Replies: 8
Views: 2602

Re: Log spot values to .csv file?

In the interim, if anyone else gets to it before I do, this is my go-to software for reviewing datalogs from my recent ICE powered endeavors. I do love me a good scatter plot

https://www.efianalytics.com/MegaLogViewerHD/
by jon volk
Thu May 02, 2019 4:01 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

Re: LDU parameter tuning

Good stuff!
Damien, what was your boost value set to when you had the car on the dyno? Aside from breaking driveline, when might the boost value start to have unfavorable consequences from a motor/inverter standpoint?
by jon volk
Thu May 02, 2019 3:20 pm
Forum: User Interface
Topic: Log spot values to .csv file?
Replies: 8
Views: 2602

Re: Log spot values to .csv file?

Awesome! Anxious to try it out this weekend.
by jon volk
Wed May 01, 2019 11:35 pm
Forum: User Interface
Topic: Log spot values to .csv file?
Replies: 8
Views: 2602

Re: Log spot values to .csv file?

The copy and paste doesn’t seem like much of a burden if it simplifies the code part of it. I eventually would like to log over CAN but haven’t purchased any hardware to do so yet.
by jon volk
Sun Apr 28, 2019 11:06 pm
Forum: User Interface
Topic: Log spot values to .csv file?
Replies: 8
Views: 2602

Log spot values to .csv file?

Is there a way to datalog all spot values to a .csv file for review?
by jon volk
Sun Apr 28, 2019 9:49 pm
Forum: Tesla
Topic: Tesla CAD Models
Replies: 25
Views: 10160

Re: Tesla CAD Models

I used the LDU on my build. Dimensions were perfect.
by jon volk
Sun Apr 28, 2019 8:49 pm
Forum: Tesla
Topic: LDU parameter tuning
Replies: 103
Views: 26287

LDU parameter tuning

While the general parameters seem to be well documented on their own, I thought it would be a good conversation to talk specifically about what parameters you should and shouldn’t change on the LDU and how these changes affect actual driveability performance as well as power levels/delivery I’m a ne...
by jon volk
Wed Apr 10, 2019 7:54 pm
Forum: General
Topic: Siemens Elfa2 Reverse Engineering
Replies: 15
Views: 3001

Re: Siemens Elfa2 Reverse Engineering

This might be interesting for my now "spare" inverterless motor.