Search found 371 matches

by joromy
Tue May 19, 2020 1:08 pm
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Re: Tesla charger programming/source code

Here is the code that need to be changed: // Find this: (line 390 or something, depending on version) evseread(); autoShutdown(); watchdogReset(); manualMode(); // Add the following: if (digitalRead(DIG_IN_2) == HIGH) parameters.phaseconfig = Threephase; else parameters.phaseconfig = Singlephase; Yo...
by joromy
Mon May 18, 2020 8:23 am
Forum: Projects
Topic: VW T3 EV Conversion Kit
Replies: 17
Views: 5128

Re: VW T3 EV Conversion Kit

max. 80kW (continuous) The limit to comply with the max. 20% power increase rule would be 77kW The actual power rating of a motor, is not relevant. I use a Siemens motor, and can set about double the power output. If you have a openinverter board you can set whatever power level you want. So if you...
by joromy
Fri May 15, 2020 1:01 pm
Forum: Inverters / Motor Controllers
Topic: Enova(!) Parameters
Replies: 48
Views: 6521

Re: Enova(!) Parameters

Seems really strange that it’s such a neat graph and can be produced consistently. I’m going to start looking into a different encoder but if those plots mean anything to anyone then let me know. Did test this today (Siemens ACIM motor) I got zero RPM at standstill, in RUN mode and off mode. I stil...
by joromy
Thu May 14, 2020 1:45 pm
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Re: Tesla charger programming/source code

I think I found a simpler way to do this. Do you think it will work? :? At least, this way it will not go boom, if contactor fails or get welded!! The charger will be in 1Phase mode all time, N-L1 connected to all modules. When there is 400VAC on L2-L3, contactor will close and connect phase123 to m...
by joromy
Tue May 12, 2020 9:03 pm
Forum: Inverters / Motor Controllers
Topic: Enova(!) Parameters
Replies: 48
Views: 6521

Re: Enova(!) Parameters

How does your angle plot look like, at stand still and manual turn of wheel?
Like this:
viewtopic.php?f=2&t=731#p10711
by joromy
Mon May 11, 2020 9:49 pm
Forum: General
Topic: Weird Speedometer Question
Replies: 72
Views: 11893

Re: Weird Speedometer Question

Maybe this is a stupid question, but can't you use the frequency output from the openinverter?

I use the "pwmfunc speed" for speedometer and servo steering. Works for me.
by joromy
Mon May 11, 2020 7:07 pm
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128851

Re: Tesla Charger Support Thread

Line 822 (for phase 1) : dcvolt[0] = ((frame.data.bytes[3] << 8) + frame.data.bytes[2]) * 0.0105286; //we left shift 8 bits to make a 16bit uint. This is very good finding!! I have the same voltage conversion with correct voltage reading, but with an European model. Maybe we should make a list with...
by joromy
Mon May 11, 2020 6:47 pm
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Re: Tesla charger programming/source code

That sounds like it would work yes. all you have to change/over ride is the variable for the phase wiring type. Here is the code I use now, if you have nothing to do, please feel free to help :D This could be a nice feature to have in the official version to..... https://github.com/jomy-tech/My_Tes...
by joromy
Mon May 11, 2020 6:30 pm
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Re: Tesla charger programming/source code

The OEM setup on the Tesla can do this. Tesla have a module for this that connects to the Gen 2 charger AC. It's a stand alone unit that is not directly controlled by the charger. I posted some information on DIY Electric ( here ). It may not work with the open source controller. Thank you, will fi...
by joromy
Mon May 11, 2020 9:43 am
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Re: Tesla charger programming/source code

The OEM setup on the Tesla can do this. The charger will always be in 3 phase mode, and only shift to 1 phase if missing AC on phase 2 and 3. If relay should close when on 3 phase, then AC fuse in car and grid will blow, and relay would probably go bad... No harm to charger or EVSE, as I can think o...
by joromy
Mon May 11, 2020 8:04 am
Forum: Tesla
Topic: Tesla charger programming/source code
Replies: 11
Views: 2395

Tesla charger programming/source code

Programming question, can you help Tom, or anyone.... I want to be able to close a relay to short phase 1.2.3, when I charge at 1 phase outlet. Relay is connected to DIG_out_3. Is there a safe way to activate the relay in software? I was thinking to read ACpres or acvolt. If AC is only present on ph...
by joromy
Sun May 10, 2020 9:33 pm
Forum: Inverters / Motor Controllers
Topic: What is (ab)normal plots, can you share your's?
Replies: 4
Views: 965

Re: What is (ab)normal plots, can you share your's?

My truck is drive able, but I'm not satisfied with slow speed jitter. And sometimes overcurrent.
Can live with it until Johannes will implement vector control for ACIM :D
by joromy
Sun May 10, 2020 9:08 pm
Forum: Inverters / Motor Controllers
Topic: What is (ab)normal plots, can you share your's?
Replies: 4
Views: 965

Re: What is (ab)normal plots, can you share your's?

Is this normal?
When I plot angle I get changes from 0 to 360, when truck is completely standstill!
angle_at_stand_still.jpg
Sorry about the picture quality, was in a hurry, will u/l a better one.....
by joromy
Sun May 10, 2020 9:03 pm
Forum: Charging
Topic: Type 2 wall charger pin signal .. ?
Replies: 5
Views: 1464

Re: Type 2 wall charger pin signal .. ?

Bigpie wrote: Sun May 10, 2020 8:56 pm https://en.m.wikipedia.org/wiki/SAE_J1772
This is type 1, just to be picky ;)
by joromy
Sun May 10, 2020 6:53 pm
Forum: Charging
Topic: Type 2 wall charger pin signal .. ?
Replies: 5
Views: 1464

Re: Type 2 wall charger pin signal .. ?

There is nothing to crack.
Buy a kit, or have a look at:
https://openevse.com/index.html

Source code here:
https://github.com/openevse
by joromy
Sat May 09, 2020 9:23 pm
Forum: Projects
Topic: VW T3 Westfalia campervan
Replies: 13
Views: 3104

Re: VW T3 Westfalia campervan

tmotion wrote: Sat May 09, 2020 12:26 pm cooling by means of aluminium pipes like i3
I like your cooling system, is it aluminium rectangular tubes welded together?
Very goof idea!
by joromy
Thu May 07, 2020 11:08 pm
Forum: Ford
Topic: TEC battery water heater/cooler
Replies: 4
Views: 4752

Re: TEC battery water heater/cooler

It's mounted where the original charger was, together with a small coolant reservoir.
Tesla chargers are installed inside the truck.
IMG_20200507_150433_1.jpg
by joromy
Thu May 07, 2020 8:13 am
Forum: Open Tasks
Topic: Make CANBus Standard
Replies: 12
Views: 7196

Re: Make CANBus Standard

sfk wrote: Thu May 07, 2020 6:25 am @joromy your breakout/gateway board suddenly looks very interesting.
I started to like the Teensy boards, when I got the SimpBMS.
It has CAN bus, the Teensy 4 has 3 CAN buses.

This is going a little off topic, maybe make another tread.......
by joromy
Wed May 06, 2020 8:51 pm
Forum: Inverters / Motor Controllers
Topic: OpenInverter Mainboard in a Siemens Simotion?
Replies: 37
Views: 9826

Re: OpenInverter Mainboard in a Siemens Simotion?

As discussed in the beginning of this thread, the gate driver board has an active LOW PWM polarity. Does this mean I need a pull-up resistor to each driver channel (L1,2,3 High/Low), or is changing the pwmpol parameter enough? When I made the board for the Ford Siemens inverter (also with LOW polar...
by joromy
Tue May 05, 2020 7:22 pm
Forum: Open Tasks
Topic: Make CANBus Standard
Replies: 12
Views: 7196

Re: Make CANBus Standard

I'm working on a configurable driver board what you can slap into any car and have some configurable lamp, pulse, and PWM outputs to drive older, non-canbus, instrument clusters. Something like this? https://openinverter.org/forum/viewtopic.php?f=16&t=433 I send you a board for free, and we can...
by joromy
Mon May 04, 2020 8:46 am
Forum: General
Topic: 10 kW PV System House Inverter Build
Replies: 3
Views: 1132

Re: 10 kW PV System House Inverter Build

I can imagine a whole world of regulatory problems if you want to do a grid tie inverter.
UL 1741 and IEEE 1547 are the standards you need to follow, for a grid tie inverter.

I haven't thought about, switching between grid and your own power, but a grid tied one would work better, I think....
by joromy
Sun May 03, 2020 2:48 pm
Forum: Inverters / Motor Controllers
Topic: What is (ab)normal plots, can you share your's?
Replies: 4
Views: 965

Re: What is (ab)normal plots, can you share your's?

Same truck, same situation:

il1, il2 and uac.
Plot _il1_il2_uac.JPG
by joromy
Sun May 03, 2020 2:14 pm
Forum: Ford
Topic: Ford Ranger Inverter board Support Thread
Replies: 93
Views: 32102

Re: Ford Ranger Inverter board Support Thread

Edit: Not very relevant any more, use this: https://openinverter.org/forum/viewtopic.php?f=16&t=186&p=16373#p16373 Changed the pwmfrq back to 8.8kHz I spent some hours tuning on level ground yesterday. With boost at 5000 (or higher), ampmin at 20, and fslip at 1.3 the truck starts, stops and...
by joromy
Sun May 03, 2020 7:43 am
Forum: Ford
Topic: Ford Ranger Inverter board Support Thread
Replies: 93
Views: 32102

Re: Ford Ranger Inverter board Support Thread

There is not any specific information on the Ranger motor since it is a OEM. But I got this from info from Eric Tischer (He has built inverter for the Ranger motor, with a industrial VFD) http://etischer.com/awdev/ I guess with "base frequency" he mean fweak? Quoting Eric: I'm using 157hz ...
by joromy
Sat May 02, 2020 9:28 pm
Forum: Ford
Topic: Ford Ranger Inverter board Support Thread
Replies: 93
Views: 32102

Re: Ford Ranger Inverter board Support Thread

I still think boost should be high fo those motors. Isn't boost only to overcome start from 0 RPM, does it have any function after that? At high speed frequency works untill weakening depleats torque. Do you use tramsnission? What is the max RPM value? If you use transmission i suggest you set fmax...