Search found 29 matches

by bewo
Fri Nov 07, 2025 6:40 am
Forum: Classifieds
Topic: Where to obtain this Tesla SDU part?
Replies: 7
Views: 1274

Re: Where to obtain this Tesla SDU part?

It depends on the damage. From my perspective there are only two possibilities. I had a broken hose as well and used my old lathe to build a hose. The diameter varies at the end
Hose.png

I open up the whole in the plate and than used resin that has a good resistance against temperature. If it ...
by bewo
Mon Oct 20, 2025 9:02 am
Forum: General
Topic: German TUEV your papers
Replies: 2
Views: 201

Re: German TUEV your papers

I know that all informations are in the COC.
In the German papers of the Born you find the capacity as well. Point D.3 (Handelsbezeichnung / trade name) the entry is: BORN 170 KW 60/63 KWH.

I just want to know whether you guys have such a detailed information in your conversion papers as well. Like ...
by bewo
Mon Oct 20, 2025 6:33 am
Forum: General
Topic: German TUEV your papers
Replies: 2
Views: 201

German TUEV your papers

Hi guys,
I'm wondering how your German road legal papers look like. We have a self configured battery. For that reason we have maybe more entries in the papers than you guys. You will see that some things are not right, if you try to control with the calculator. I don't want to blame anyone here ...
by bewo
Sat Oct 18, 2025 9:39 pm
Forum: Tesla
Topic: Tesla SDU board out of stock
Replies: 11
Views: 738

What to do with SDU/FDU?

Hi guys, based on the actual situation regarding the SDU drop-in board we're really unsure how to deal with that. As I wrote in an other thread we are planing to jump from a 150V to a 400V environment in our EV conversion. As you can imagine we planned to use the OI board for the FDU, but with the ...
by bewo
Tue Oct 14, 2025 6:51 pm
Forum: Vehicle Control (VCU)
Topic: OI Mainboard & OI SDU dropin board
Replies: 2
Views: 351

Re: OI Mainboard & OI SDU dropin board

The plan is to reuse as much parts as possible. So the battery will be reconfigured to reach the higher voltage. It's based on LiFePo4 cells. AC charing is actually and in the future 10 kW with three Thunderstruck TSM2500. The 123 SmartBMS will be used as well.

We'll See how it goes
by bewo
Tue Oct 14, 2025 2:33 pm
Forum: Vehicle Control (VCU)
Topic: OI Mainboard & OI SDU dropin board
Replies: 2
Views: 351

OI Mainboard & OI SDU dropin board

Hi guys,

we are actually planning to change our T5, working with a Curtis controller, SDU (without original inverter) at 150V, to use the original Tesla inverter with the OI board. The reason for that is the chance to implement CCS charging. Based on the fact that the original car had a DSG several ...
by bewo
Sat Aug 30, 2025 9:35 am
Forum: Drive trains (motors and inverters)
Topic: Searching for: SDU Inverter
Replies: 1
Views: 771

Searching for: SDU Inverter

I'm searching for an Inverter and it's housing for an Tesla SDU. Searched the internet for hours now, but didn't find any. Feel free to contact me if you have one.
In the past our VW T5 Multivan was electrified with an Tesla RSDU with a Curtis Controller. Based on the fact that we would like to use ...
by bewo
Fri Aug 29, 2025 9:02 am
Forum: Tesla
Topic: Tesla SDU / FDU
Replies: 2
Views: 803

Re: Tesla SDU / FDU

Thank you Johannes for the information. I don't have an FDU in my hand, but extended my research. It seems that the inverter housing is the same for SDU and FDU. If you look from the side you see that the housing is turned in a 90° angle.
And as mentioned in an other article here in the forum the ...
by bewo
Wed Aug 27, 2025 1:37 am
Forum: Tesla
Topic: Tesla SDU / FDU
Replies: 2
Views: 803

Tesla SDU / FDU

Hi guys,
I have a question regarding to Teslas SDU and FDU with the different part numbers 1037000-00-F and 1035000-00-F.
Does anyone know whether the inverters are identical? So the electronic itself?
Long story short. I'm searching for an inverter for the 1035 an the question is, can I use an ...
by bewo
Tue Apr 15, 2025 8:37 pm
Forum: General
Topic: Multiple OI Boards Communication
Replies: 3
Views: 5117

Re: Multiple OI Boards Communication

Ok, thanks for the answers.
@tom91: First of all the plan is to combine the OI mainboard V3 and the OI CCS controller.

I hope I understand it right. The goal is to bring all new EV hardware like mainboard, CCS, BMS.... to the drive train can bus. Beforehand I have to be sure, that there are no ...
by bewo
Mon Apr 14, 2025 8:22 pm
Forum: General
Topic: Multiple OI Boards Communication
Replies: 3
Views: 5117

Multiple OI Boards Communication

Actually we have a converted VW T5 with different non OI components. Now we're in the process to add an OI mainboard to get rid of the original ECU with the side effect of getting back some original functionality. So far so good. One of the projects this year will be to add OI CCS and maybe to do an ...
by bewo
Fri Apr 04, 2025 6:44 pm
Forum: Batteries and Charging
Topic: Exact Dimensions Battery case MEB
Replies: 0
Views: 3365

Exact Dimensions Battery case MEB

We are thinking to change the battery of our T5 Multivan conversion. It seems that a VW MEB battery case fits behind the front frame. Here https://www.batterydesign.net/vw-benchmarking-id3-id4-id5-and-id-buzz/ I found the dimensions of the battery case, but I need more information about that.
At the ...
by bewo
Sat Jan 25, 2025 6:54 pm
Forum: Batteries and Charging
Topic: Change to CCS new TÜV Than?
Replies: 4
Views: 3618

Re: Change to CCS new TÜV Than?

Hope the guys at the TÜV station share your opinion :D
by bewo
Sat Jan 04, 2025 11:25 pm
Forum: User Interface
Topic: New parameter CAN Bus
Replies: 7
Views: 5976

Re: New parameter CAN Bus


Have you seen this? https://github.com/jsphuebner/stm32-car

I have partially hard coded some CAN messages and dynamically mapped others. Maybe serves as a template for what you want to do.


So am I right that you include a part of the stm32-car code in the firmware you use on your brain board ...
by bewo
Fri Jan 03, 2025 6:16 pm
Forum: User Interface
Topic: New parameter CAN Bus
Replies: 7
Views: 5976

Re: New parameter CAN Bus

Yes it goes beyond your conversion and I have a CAN sniffer to get logs etc.. Did that to check which messages are on the bus and which are relevant. Just want to know how to configure the brain board to send several CAN messages to emulate the some parts of the original ECU like you did. So where ...
by bewo
Fri Jan 03, 2025 4:35 pm
Forum: User Interface
Topic: New parameter CAN Bus
Replies: 7
Views: 5976

Re: New parameter CAN Bus

So I'm driving a VW Multivan T5.2. Actually I use the brain board rev.3. The idea is to get rid of the original ECU, cause we have some challenges with that. We use a Tesla SDU drive train with a Curtis controller. So the problem is that several things are not working. No heated seats and no heated ...
by bewo
Fri Jan 03, 2025 4:19 pm
Forum: User Interface
Topic: New parameter CAN Bus
Replies: 7
Views: 5976

New parameter CAN Bus

I try to deal with the CAN topic. Car is running basically and everything is fine, but there are still silly messages in the dash like 'Motorstoerung Werkstatt'. As far as I know I use the CAN ID 0x480 byte 6 bit 4 set it to zero and that's it. Using the command line or web interface allows only to ...
by bewo
Tue Dec 31, 2024 1:46 pm
Forum: Batteries and Charging
Topic: Change to CCS new TÜV Than?
Replies: 4
Views: 3618

Re: Change to CCS new TÜV Than?

Thanks for the fast reply. I'm just asking cause my papers are really detailed. Which cells, which inverter etc. The only thing which is missing is the color of the socks the mechanic is wearing during the swap of the car :P
by bewo
Tue Dec 31, 2024 12:37 pm
Forum: Batteries and Charging
Topic: Change to CCS new TÜV Than?
Replies: 4
Views: 3618

Change to CCS new TÜV Than?

Hi guys,

actually we have only a Type 2 for AC charging in our Bus. We plan to use the openinverter CCS board to implement fast charging in the car. We started with the change from the Type 2 inlet to a combined one for AC and DC charging.
Having a look in the papers of the car there is a section ...
by bewo
Fri Oct 18, 2024 7:18 pm
Forum: Batteries and Charging
Topic: Foccci integration with OBCs
Replies: 26
Views: 12085

Re: Foccci integration with OBCs

Maybe it's possible to use the connected AC to switch between two ways of generating the signals. Splitting up the lines of CP and PP and include a simple circuit for generating the signal or do a direct connect to the OBC if needed.
As standard foccci is active. If AC is plugged in a kind of relay ...
by bewo
Wed Oct 02, 2024 9:44 pm
Forum: General
Topic: General Newbe Questions
Replies: 6
Views: 3364

Re: General Newbe Questions

Sorry was busy for a long time.
So the plan is to remove the original engine control unit and start with the Bain Board Rev3. I hope to get my problems fixed with the missing DSP and 4x4 control units.
I think I have read that there are possibly problems with the WiFi, if the board is mounted deep ...
by bewo
Fri Mar 22, 2024 9:00 am
Forum: Projects
Topic: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]
Replies: 813
Views: 855555

Re: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]

Hi juhu,

maybe I missed the information in this really huge thread. How did you deal with the two signals of the generator DFM and L? I know that L is used to activate high load devices like seat heating or the rear window heating.
by bewo
Thu Mar 14, 2024 7:07 pm
Forum: Getting Started
Topic: where to pass TUV in Germany
Replies: 48
Views: 45592

Re: where to pass TUV in Germany

Thanks, added the locations to get EV conversions road legal in Germany
by bewo
Tue Mar 12, 2024 12:41 pm
Forum: Getting Started
Topic: where to pass TUV in Germany
Replies: 48
Views: 45592

Re: Technical acceptance (TÜV in Germany)

I don't have the rights. So I'm not able to extend the wiki.
If it's possible to give them to me I would enter my TÜV contact and the contacts of the thread uhi22 mentioned
by bewo
Tue Mar 12, 2024 7:11 am
Forum: General
Topic: General Newbe Questions
Replies: 6
Views: 3364

Re: General Newbe Questions

Hi Marcexec,

as I said a big part of the work is done by a company, but we have some ideas to improve that conversion.
For that I'll start a project in the forum to give you all an idea what's going on. That will take some time, cause I'm very busy right now.