Search found 43 matches

by Riwi
Tue Sep 05, 2023 1:37 pm
Forum: Projects
Topic: WIP - Fiat 500R -73 + Tesla SDU
Replies: 1
Views: 554

Re: WIP - Fiat 500R -73 + Tesla SDU

@200V (48S)
by Riwi
Sun Aug 20, 2023 2:22 pm
Forum: Projects
Topic: WIP - Fiat 500R -73 + Tesla SDU
Replies: 1
Views: 554

WIP - Fiat 500R -73 + Tesla SDU

Hi! Luigi was first converted back in 2012 using a Agni 95R + Kelly. I decided to upgrade and went for the Tesla SDU. The hardest part so far was CAD-ing up the motormount. More info on intagram.com/wildtech.eu Today i did the first test using 100V, Two 12S MEB-modules. Feels good. https://www.youtu...
by Riwi
Tue May 09, 2023 9:54 am
Forum: Tesla
Topic: Snap-ring tesla front sdu
Replies: 8
Views: 687

Re: Snap-ring tesla front sdu

Thanks!

32,32mm in diameter.
2.2mm thick.
by Riwi
Fri Apr 28, 2023 6:45 am
Forum: Tesla
Topic: Snap-ring tesla front sdu
Replies: 8
Views: 687

Re: Snap-ring tesla front sdu

Zieg wrote: Fri Apr 28, 2023 4:14 am Is it actually a snap ring though, or is it a hog ring (like on an impact gun)?
Hog ring it is!
by Riwi
Fri Apr 28, 2023 6:43 am
Forum: Tesla
Topic: Snap-ring tesla front sdu
Replies: 8
Views: 687

Re: Snap-ring tesla front sdu

Bratitude wrote: Fri Apr 28, 2023 2:53 am Snap rings generally are not oem specific fyi
Ok, you wouldn’t have the diameter and thickness at hand?
by Riwi
Thu Apr 27, 2023 7:40 pm
Forum: Tesla
Topic: Snap-ring tesla front sdu
Replies: 8
Views: 687

Snap-ring tesla front sdu

Hi!

I got a SDU, 1035000-00-J, and I'm trying to find snap-rings for the driveshaft. Its the small ring/clip that keeps the driveshaft in the diff.
Any one got a source for these?

Thanks

Rikard
by Riwi
Mon Apr 17, 2023 9:08 am
Forum: Battery Managment (BMS)
Topic: Master CAN module for Hankzor balancers
Replies: 37
Views: 10125

Re: Master CAN module for Hankzor balancers

tom91 wrote: Mon Apr 17, 2023 8:38 am NO that is for the SimpBMS as it says and the previous posts mention. If you need it to work on EVS-BMS hardware that can be looked at too, do you have an EVS-BMS?
Ok, I haven’t decided on the bms to use yet, still looking though options.

Thanks
by Riwi
Mon Apr 17, 2023 6:29 am
Forum: Battery Managment (BMS)
Topic: Master CAN module for Hankzor balancers
Replies: 37
Views: 10125

Re: Master CAN module for Hankzor balancers

It literally is in the github link. Ok, so loading the evsbms with SimpJK.ino.TEENSY32.hex would do it? When using more than 24s I guess that the jk-balancers needs to be connected like this in order for all cells to be balanced evenly? https://www.jkbms.com/wp-content/uploads/2019/10/figure7.jpg
by Riwi
Sat Apr 15, 2023 8:10 pm
Forum: Battery Managment (BMS)
Topic: Master CAN module for Hankzor balancers
Replies: 37
Views: 10125

Re: Master CAN module for Hankzor balancers

First draft created. https://github.com/Tom-evnut/SimpBMS-JK It reads the info and can command balancing. Balancing is done here, they need to be set once so using a simple integer to do this. if (balancecells == 1) { if (SetBal == 2 || SetBal == 0) { bms.balanceCells(1, 0); //1 is debug SetBal = 1...
by Riwi
Fri Feb 24, 2023 5:56 pm
Forum: Tesla
Topic: SDU parameter tuning - major failure - can't select drive gear
Replies: 36
Views: 3059

Re: SDU parameter tuning - major failure - can't select drive gear

johu wrote: Fri Feb 24, 2023 5:06 pmGod no :) DC bus!
Check! :)
by Riwi
Fri Feb 24, 2023 1:46 pm
Forum: Tesla
Topic: SDU parameter tuning - major failure - can't select drive gear
Replies: 36
Views: 3059

Re: SDU parameter tuning - major failure - can't select drive gear

unidirectional is fine. Spikes in reverse direction, if even possible, would be absorbed by the diodes contained in the phases. Remember, stick your multimeter on there the wrong way round it will measure like 0.5V forward voltage. Ok, I’m placing my tvs+resistor on the dc side. If possible, would ...
by Riwi
Fri Feb 24, 2023 1:45 pm
Forum: Tesla
Topic: SDU parameter tuning - major failure - can't select drive gear
Replies: 36
Views: 3059

Re: SDU parameter tuning - major failure - can't select drive gear

Hi Rikard. If you are thinking of adding TVS I would use bidirectional as spikes could happen with drive and regen possibly so current flow is in either direction. Jump in anyone if you have thoughts please. Thanks! I will try to guesstimate the amount of energy that needs to be absorbed. I’ll keep...
by Riwi
Wed Feb 22, 2023 4:04 pm
Forum: Tesla
Topic: SDU parameter tuning - major failure - can't select drive gear
Replies: 36
Views: 3059

Re: SDU parameter tuning - major failure - can't select drive gear

Hi Rikard. Stick with Tripmode 1, is still the best idea without doubt. I will, I just wanted an extra safety feature. I like the tvs approach. I’ll be running approx 250V on the dc side. There are 300V unidir tvs that can handle up to 30kW for a very short period and combining them with a high eff...
by Riwi
Tue Feb 21, 2023 8:29 am
Forum: Tesla
Topic: SDU parameter tuning - major failure - can't select drive gear
Replies: 36
Views: 3059

Re: SDU parameter tuning - major failure - can't select drive gear

Tripmode 1 is the best idea as Catphish suggests. As an added path to clamp spikes I use suitably voltage rated paralleled TVS in series with a high wattage 25R resistor across the inverter HV input cables as close to the inverter as possible. Hi Peter, Regarding the TVS approach. could you give so...
by Riwi
Mon Feb 20, 2023 11:21 am
Forum: Tesla
Topic: SDU tilt/orientation
Replies: 1
Views: 302

SDU tilt/orientation

Hey! After looking at the weber university run down of the front SDU, avaliable here: https://www.youtube.com/watch?v=FVVT3FD30eY, I learned that in order to gain max cooling of the motor the tilt must be right. Looks like the heat exchanger is supposed to be upright/flat when mounted correctly. I n...
by Riwi
Mon Feb 20, 2023 9:35 am
Forum: Tesla
Topic: SDU cooling options
Replies: 1
Views: 333

SDU cooling options

Hi! Whats your solution for cooling the SDU? 1. Feed the inverter and motor (heat exchanger) in parallell, if so what flow and size of radiator. 2. Serial cooling, first inverter, second motor. 3. Two seperate loops for motor and inverter. Whats your experience and recommendation? BR Rikard
by Riwi
Thu Feb 16, 2023 3:27 pm
Forum: Tesla
Topic: Gain for uaux [SOLVED]
Replies: 2
Views: 389

Re: Gain for uaux [SOLVED]

Ok, so it’s safe to ignore?
by Riwi
Thu Feb 16, 2023 11:38 am
Forum: Tesla
Topic: Gain for uaux [SOLVED]
Replies: 2
Views: 389

Gain for uaux [SOLVED]

Hi! just got my sdu up and running for test. Using a 12v battery for logic and 24v dc for “hv”. Looking at the gains and I see uaux is 16,48 in the spot values. The multimeter reads 11,45. How do I set the gain for uaux? I managed to “unhide” udcgain and set the correctly but I can’t find the gain f...
by Riwi
Mon Jan 30, 2023 10:34 am
Forum: Nissan
Topic: Field weakening
Replies: 5
Views: 704

Field weakening

Hi! I’ve started to play around with the new features regarding field weakening. I got a 24s, 88v, battery connected to the inverter. Precharge and closing of main contactor works like a charm. I upgraded sw to 5.24.R-foc and applied the config found in the database for em57. I can control start, fw...
by Riwi
Tue Dec 06, 2022 8:15 pm
Forum: Nissan
Topic: Unable to close precharge and main contactor
Replies: 8
Views: 973

Re: Unable to close precharge and main contactor

Thank you!
by Riwi
Tue Dec 06, 2022 7:56 am
Forum: Nissan
Topic: Unable to close precharge and main contactor
Replies: 8
Views: 973

Re: Unable to close precharge and main contactor

Hi!

Im having problems finidng a good source for the AP9T18GH-HF mosfet. Do you have any tips?

BR

Rikard
johu wrote: Sat Oct 29, 2022 7:07 am 1. It is driven by the mosfet
2. Yes motor connection is not needed

Maybe swap the mosfet?
by Riwi
Sat Oct 29, 2022 8:15 am
Forum: Nissan
Topic: Unable to close precharge and main contactor
Replies: 8
Views: 973

Re: Unable to close precharge and main contactor

Thanks,

Yes it’s a new card but I tested it with the old, and possible broken contactor.

If I manually engage the contactor after pressing start, it all works so it looks to be isolated to the mosfet.

I have some spares :)
by Riwi
Fri Oct 28, 2022 8:44 pm
Forum: Nissan
Topic: Unable to close precharge and main contactor
Replies: 8
Views: 973

Re: Unable to close precharge and main contactor

Hey! Got some progress on this issue. I am now able to close the precharge relay and get udc=battery voltage. When I press start there is a slight delay before the precharge relay is opened again. The issue now is that the main contactor wont close. Tried a new contactor but that did not help. As I ...
by Riwi
Wed Oct 12, 2022 2:40 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: ID.3 and other MEB battery packs in conversions
Replies: 70
Views: 25421

Re: ID.3 and other MEB battery packs in conversions

Kutato72 wrote: Wed Mar 30, 2022 7:41 pm Fuses. 1206 size SMD fuses in the LG Chem version.
Hi! Does the fuse have a resistance? Can you measure it?
Is the other batch of fuses placed behind the end-cover on the opposite side? Can you change or remove them by opening the end covers?

Br

Rikard
by Riwi
Sat Aug 27, 2022 5:26 pm
Forum: Nissan
Topic: Unable to close precharge and main contactor
Replies: 8
Views: 973

Re: Unable to close precharge and main contactor

Thank you,

Will do. We think that thunder/lightning caused a fault in the inverter. The BMS was affected as well.