TESLA MODEL S P85 85Kwh 2014 years

[lbdein81]

Hello

I can't have any communication with CAN1 native port (STARK CMR) .I confirm signal CAN L and CANH work with other device and it inform SOC 3%.

I have message under Voltage on Events. I don't put CAPA 1000µF on output , you think it prevent CAN communication ?
regards

[lbdein81]

canlog_00-07-06.txt
I send you can log

[dalathegreat]

Yes please follow the Wiki for Legacy Tesla. Make sure you select correct settings: https://github.com/dalathegreat/Battery-Emulator/wiki/Battery:-Tesla-Model-S-X-2012%E2%80%902020

[lbdein81]

Hi dala,

thanks for your reply,
I just upgrade firmware to 10.9.0 version, i take configuration model S/X 2012-2020 with follow https://github.com/dalathegreat/Battery-Emulator/wiki/Battery:-Tesla-Model-S-X-2012%E2%80%902020.
I have NO succes with communication can, noting cells value appear.
I can confirm CAN communication with other reader device.

Note information battery Model S P85 (85kwh-400Vdc) to 2014 , ref sticker :
TESLA part number : 1088815-01-D
TESLA S/N : T14A0029932R1

thanks for your support

[dalathegreat]

Your attached CAN log has no incoming messages. This suggests either wiring problem, or a defective BMS inside the Tesla battery

[v0van]

Check the battery switch and controller to ensure the total resistance of the CAN bus is 60 Ohms.

[lbdein81]

Check the battery switch and controller to ensure the total resistance of the CAN bus is 60 Ohms.

Hi V0van , thanks for you reply I put 120ohm on stack CMR and it work !
On wiki https://github.com/dalathegreat/Battery-Emulator/wiki/Battery:-Tesla-Model-S-X-2012%E2%80%902020 you can add value resitor

regards

[lbdein81]

Hello
Now it's not possible to do work contactor see attachment and datalog.

Therefore normal to have No extra infomation battery ?

canlog_00-01-46.txt
regards

[v0van]

good afternoon After a couple of days of operation, the same error appeared. Contactors do not close. The 12V battery is working and gives normal voltage.

[v0van]

I've already double-checked everything. I replaced the capacitor and installed the latest firmware, but it didn't help. I heard the precharge relay click and that was it.

[dalathegreat]

Try this PR @v0van #2425

[v0van]

Did I get this right? I download the file from this link, extract the firmware from the archive, and update the firmware via OTA update. What's next?

[dalathegreat]

Yes, go to the "More Battery Info" page, and press the "Reset BMS" button. This new pull request will clear more latched errors, and hopefully help!

[v0van]

Good afternoon. I did everything as instructed. I updated to the dev version and reset the BMS. Nothing helped. I changed the capacitor values ​​from 400uF to 800uF, but it didn't help.

[lbdein81]

Hello
I confirm same issue without dev version. I tested with 1000µF capacitor.

[v0van]

Hi everyone. Then I'll try enabling contactor control in the controller and connecting the contactors to the emulator via a relay.

[dalathegreat]

Hi @v0van & @lbdein81
Can you take some CAN logs while running the BMS reset procedure? We need too see what the battery sends back. Instructions on how to log are here: https://github.com/dalathegreat/Battery-Emulator/wiki/CAN-logging

[v0van]

I'll do it tomorrow

[lbdein81]

The same

[v0van]

canlog_00-00-40.txt
canlog_00-00-57.txt
canlog_00-00-58.txt
canlog_00-01-26.txt
canlog_00-00-23.txt

[lbdein81]

canlog_00-01-56.txt
Log file on BMS reset button

[v0van]

Hello everyone. Do you need any other information?

[v0van]

Hello everyone. Has anyone managed to jump-start the battery?

[v0van]

lbdein81 Did you manage to start the battery?

[lbdein81]

no answer no solution no start battery? I'm stopped for this model. Succes with 208 and zoe. TESLA have problem, i think

[v0van]

It's a pity there's no solution, the battery has already been purchased - I'll try to start it.

[v0van]

I tried moving the contactor control to external relays. The emulator started controlling them. Everything starts, but the BMS keeps reporting that the contactors are not closed and preventing the battery from charging or discharging.

[lbdein81]

Hello ,

I have update v12.2.0 and now i can read cells. Events seems to don't allow charge power because critical low voltage is appear. SOC is 3%, it should be possible to allow charge ? you can see pictures
regards

[dalathegreat]

The Tesla Legacy code has 3400mV as the minimum allowed cellvoltage. We should raise this... EDIT: #2814

In the meantime, you can use the "Recover undercharged Battery" feature: https://dalathegreat.github.io/Battery-Emulator-Wiki/setup/hardware/recovering_undercharged_battery/

Finally, you should NOT use GPIO contactor control, Tesla packs are CAN controlled contactors

[lbdein81]

hello thanks for your reply. I just try with .bin. communication is ok with capacitor 1000%F on DC but message don't allow charge

[lbdein81]

canlog_0d00h04m44s.txt

[lbdein81]

I rescale to -10 min value and force recovery mode without effect. It don't work