Search found 26 matches

by sirpewe
Sun Mar 02, 2025 5:55 pm
Forum: Batteries and Charging
Topic: OBC/CCS System block diagram
Replies: 2
Views: 3026

Re: OBC/CCS System block diagram

Thank you for quick response.
1. Today the inverter controls the positive contactor (and precharge) and the negative is controlled from ignition button.
(Maybe need to clarify in diagram).
2. I have tesla LDU as motor and Tesla M3 LR battery. Car has been operating with tesla's PCS but I have issues ...
by sirpewe
Sun Mar 02, 2025 4:54 pm
Forum: Batteries and Charging
Topic: OBC/CCS System block diagram
Replies: 2
Views: 3026

OBC/CCS System block diagram

Hi.
Need some feedback/comments for my design.
I have a foccci board that shall handle CCS charging and CP-signal.
FOCCCI will communicate via CAN to a raspberry PI which handles communication to OBC.
The RPI will also communicate to FOCCCI and send battery voltage and allowed charge current (based ...
by sirpewe
Fri Oct 25, 2024 3:05 pm
Forum: Batteries and Charging
Topic: Foccci integration with OBCs
Replies: 26
Views: 12085

Re: Foccci integration with OBCs


What I have done in the past, 1K pull up to 12V then pwm it with a nfet. The Outlander charger finds this fine.

Jamie is running a PWM out from zombie into an outlander charger, which is a gate driver.

Also who is the person asking for this? What charger are they running and what other items are ...
by sirpewe
Fri Oct 25, 2024 2:57 pm
Forum: Batteries and Charging
Topic: Foccci integration with OBCs
Replies: 26
Views: 12085

Re: Foccci integration with OBCs

Thank you Johu for moving my post to a more appropriate place.

My first idea was to use the FOCCCI as the primary charge controller for DC and also let it handle AC charging by manipulating the CP signal to OBC.
I also had an idea to connect upto 3 OBC in parallel.
So my idea was to get a signal ...
by sirpewe
Wed Oct 23, 2024 6:55 pm
Forum: Batteries and Charging
Topic: Foccci integration with OBCs
Replies: 26
Views: 12085

Re: Develop a QCA7000 board?

Hi.
Is it possible to setup an output from foccci to "mirror" the CP input signal to be used to route to OBC?
Since the connectors are already full, I'm thinging if it's possible to use one of the testpoints for this (and patch in cable)?
And with this I think it should be possible to also limit the ...
by sirpewe
Tue Oct 08, 2024 9:34 am
Forum: Tesla
Topic: PCS Controller Alerts -charging fails
Replies: 0
Views: 1891

PCS Controller Alerts -charging fails

Hi all.

I have a PCS (which has been working but now refuses to charge and start DCDC).
The PCS and battery is from a European M3 2019 (manufactured 2018?)

SDEVR-4001
DEV-0014584
DEV-0014492
DEV-0014921

PCS Controller FW version 1.01.R (downloaded from github, latest releases).

I loaded ...
by sirpewe
Wed Sep 25, 2024 4:02 pm
Forum: Tesla
Topic: Tesla M3 PCS controller - Won't charge.
Replies: 2
Views: 1271

Tesla M3 PCS controller - Won't charge.

Hi.
My PCS controller has now started to refuse to charge.
I have tested with three different chargers and the charger seems happy but no current is drawn from the car.

When I connect via wifi I see:
Charger state: "Faulty"

One other thing I have noticed (but can't explain) is UDC value is ...
by sirpewe
Wed Sep 25, 2024 7:01 am
Forum: Tesla
Topic: Tesla PCS DC/DC turns off during driving
Replies: 7
Views: 2969

Re: Tesla PCS DC/DC turns off during driving

Hi.
I have a sometimes working PCS.
It refuses to charge sometimes. But when it works I can charge upto 10.5kw
Right now I have an issue that it goes into faulty state after a couple of seconds after I connect the charger.
I can hear the contactor in the charger and then it turns off again.
So if ...
by sirpewe
Mon Sep 23, 2024 7:44 pm
Forum: Tesla
Topic: Looking For Feedback From Actual Tesla Model 3 PCS Users
Replies: 12
Views: 6488

Re: Looking For Feedback From Actual Tesla Model 3 PCS Users

What solution do you use now instead?

BR
// Per


Possibly


Not that I'm aware of.


One thing I'll add, having just removed the PCS from my car, and just done another road trip with a different DC-DC and charger: The PCS, at least as I used it, made a TON of heat, I constantly had thermal ...
by sirpewe
Mon Sep 23, 2024 7:07 pm
Forum: Tesla
Topic: Tesla LDU board -parameters not saved?
Replies: 5
Views: 1561

SOLVED: Re: Tesla LDU board -parameters not saved?

Hi (everyone).
The reason for parameters not saved is due to inverter being in RUN mode.
When I push "stop inverter" button I can now save parameters.
Thank you P.S.Mangelsdorf for pointing this out.

// Per
by sirpewe
Mon Sep 23, 2024 8:01 am
Forum: Tesla
Topic: Tesla PCS controller newer FW Version (1.16?)
Replies: 2
Views: 2575

Tesla PCS controller newer FW Version (1.16?)

Hi.
My PCS had version 1.16 (before I "updated" to the latest on git).
Now after update I have 1.01, So I believe there are newer versions available but can't find any.
If anyone have a link or do have I'm happy to receive.
BR
// Per
by sirpewe
Mon Sep 23, 2024 7:09 am
Forum: Tesla
Topic: Tesla LDU board -parameters not saved?
Replies: 5
Views: 1561

Re: Tesla LDU board -parameters not saved?

1. The first time I was in run mode, another person driving the car and I changed parameters). So I suspected that might be the case and then I rentered when parked and car in neutral.
2. I only use the save parameters to flash button.
I have never seen a message about confirm?
by sirpewe
Sun Sep 22, 2024 4:25 pm
Forum: Tesla
Topic: Tesla LDU board -parameters not saved?
Replies: 5
Views: 1561

Tesla LDU board -parameters not saved?

Hi all.
I have finally managed to get my motor (and car) running again.
I have today tested some with regen parameters.
I set offthrottle regen to 0% and I set brakeon regen to 70% and then save.
When driving the settings work but next time I start settings are back to default (-40% and -25%)?
Any ...
by sirpewe
Sun Aug 25, 2024 4:19 pm
Forum: Tesla
Topic: LDU parameters to reduce power
Replies: 4
Views: 2705

Re: LDU parameters to reduce power

Thank you all very much for the input.
tom91: I like the simplicity in this approach. I plan to send some can messages to be able to set different "power levels" and this should be easy.
Others: Will check parameters more for tuning. :)
by sirpewe
Mon Aug 12, 2024 2:00 pm
Forum: Tesla
Topic: LDU parameters to reduce power
Replies: 4
Views: 2705

LDU parameters to reduce power

Hi.
Can someone please guide me a bit how I can change parameters to decrease power output?
My first idea was to use the current limit but this seems to set the inverter/motor in error state if triggered?

I would like to have the possibility to adjust the power output in a controlled way.

Thanks ...
by sirpewe
Mon Aug 05, 2024 5:37 am
Forum: Tesla
Topic: LDU "False" overcurrent
Replies: 1
Views: 1841

Re: LDU "False" overcurrent

Some update.
The fault signal is "shorted" (1.8ohm) to ground somewhere on the gate driver board.
The fault signal from the infineon IC is not shorted so it's not routed directly to the connector.
I've managed to get hold of another PCB and this seems to work so fault searching on these boards is ...
by sirpewe
Mon Jul 29, 2024 12:20 pm
Forum: Tesla
Topic: LDU "False" overcurrent
Replies: 1
Views: 1841

LDU "False" overcurrent

Hi.
I've rebuild a LDU and performed the coolant delete.
The fet's measured fine (according to diode measurment as Damian describes).
But when all is connected and I'm starting up with gui (No HV yet) I get overcurrent error.
Found a post with similar and removed the cover over the inverter but no ...
by sirpewe
Wed May 08, 2024 6:29 am
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 595265

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

I found a drawing (yours?):
ldu_manifold_cap.jpg

Are these the dimensions you used? (you mentioned .005 oversize which would equal 0.127mm so perhaps reduce 55.2 to ~55.1mm)
I have a contact that can help me mill and lathe so I will go and try this.
Plan to seal the cap with loctite 638 or 648 ...
by sirpewe
Mon May 06, 2024 2:03 pm
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 595265

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

Thank you for the fast feedback, much appreciated. :)
asavage wrote: Mon May 06, 2024 12:07 pm That picture is misleading; if you follow the link, it makes more sense. The red gasket you see above is for the pressure test jig I set up to provide proof positive that the plug would not leak.
by sirpewe
Mon May 06, 2024 7:16 am
Forum: Tesla
Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Replies: 525
Views: 595265

Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance

What do you use for seal material (brownish on the maifold)?
And do you have any drawing or cad file for the plug you like to share?
Or possibly if you can sell a plug? :)
by sirpewe
Wed Mar 27, 2024 5:31 pm
Forum: Tesla
Topic: LDU Coolant delete
Replies: 3
Views: 3216

LDU Coolant delete

Hi.
Anyone that has managed to build / modify the manifold to create a coolant delete?
I'm very interested in this and will probably try to make this but would realy like some input from anyone that has acctually done it (or made any 3D models).

Thanks
// Per
by sirpewe
Mon Mar 25, 2024 8:09 pm
Forum: Tesla
Topic: Tesla PCS DC/DC turns off during driving
Replies: 7
Views: 2969

Re: Tesla PCS DC/DC turns off during driving

I noticed (the day before my motor gone dead) that I lost the DC/DC when I ran slowly over a speed bump which made me wonder if maybe something is loose (in the PCS controller or some connector), your findings points in this direction too. :)
If I get my motor back in working condition I will look ...
by sirpewe
Sun Mar 24, 2024 6:43 pm
Forum: Tesla
Topic: Tesla PCS DC/DC turns off during driving
Replies: 7
Views: 2969

Re: Tesla PCS DC/DC turns off during driving

Thank you very much for your response.
At the moment I have bigger problems with the coolant leak issue (car stopped completly) and we are disassembling the motor now.
Perhaps I will start a new tread about it, at the moment my energy is a bit low.
I'm afraid the stator is ruined (measures below 4 ...
by sirpewe
Wed Mar 13, 2024 7:57 am
Forum: Tesla
Topic: Tesla PCS DC/DC turns off during driving
Replies: 7
Views: 2969

Tesla PCS DC/DC turns off during driving

Hi.
I've now experienced this twice in a short time.
The DC/DC turns off during driving, resulting in no charging of 12V battery and me loosing steering servo and heating in cabin.

Any ideas what can cause this?
Unfortunately I don't have any loggs or error messages.
The DC/DC output seems to be ...
by sirpewe
Tue Mar 12, 2024 5:39 pm
Forum: Tesla
Topic: Set charge current on Tesla PCS and PCS controller
Replies: 2
Views: 1715

Re: Set charge current on Tesla PCS and PCS controller

I played a bit with the settings and found out that changing the IACLIM value resulted in a rather quick response.
So this seems to be the parameter to look at :)

If anyone know status of the FW and version please let me know.
The previous version before "upgrade" reported as 1.16 (?)