The "conversion" of your findings into a DBC file is indeed a manual process. You found out, e.g. for Lamp1, which CAN ID and which bit in this message controls the lamp. This information you put manually into the data base file (dbc). You can do this with the DBC editor which is included ...

Do you plan to have isolation between the CAN and the shunt terminals?

Great. In case you are charging (or run into trouble) it would be nice to provide a logfile, and the charger type if possible.

Great. I just used a random ID, for me it does not matter.

Using the bus number 3 the transmitting works. This number is also shown in the main window. Not sure why it is number 3, but at least it works.

One topic to improve in pyPLC, maybe this improves the Tesla behavior: We are sending in the PreChargeRes "EVSEStatusCode_text": "EVSE_NotReady". The alpitronic and the supercharger are sending "EVSEStatusCode_text": "EVSE_Ready" [Edit] Pushed the fix: https:/...

Cross referencing a potential root cause: mixup of PP and CP: viewtopic.php?p=70247#p70247

Regarding the "8 bit" for the ChargeCurrent: Cannot confirm this issue at the moment. Using SavvyCAN to transmit the value 499A (hex 01F3), and this shows up in the web interface: image.png Using this CAN mapping: image.png The path in the software from the parameter itself to the CCS stru...

Just noticed, that the transmit path of WifiCAN has a problem. The transmit messages, which I configure in SavvyCAN are not physically on the bus. Investigation is ongoing.
https://github.com/uhi22/wifican/issues/1

Nobody knows. Best would be a scope to check

Not sure I got it right. You moved the Instruments using vcds and recorded the CAN Düring this? And then play back this recording? This does not help. The vcds uses diagnostic commands (uds on isotp), but you want plain CAN in the car.

Ok, at least the results are stable, that's a good basis for finding the issue. There are two indications, that something with the wiring is wrong: - The CP PWM is reported with 0%. This shows that either the CP is not wired to the charger, or the charger does not provide the PWM at all. - The cable...

The 0% CP duty is clearly pointing to an error, either of the charger, or of the wiring. First point is to take a multimeter, and measure on the unconnected charger whether there are 12V between CP and PE. Second, check whether the CP of the inlet is connected to the CP pin of foccci. Third, with re...

Many thanks for updating the wiki. I also now updated the wifican documentation, and added links to the wiki and to this thread.
https://github.com/uhi22/wifican?tab=re ... tart-guide

Edit 4: Tesla ... also OK now Do you say thay that you convinced the Model Y to close the contactors, without providing physical voltage during the PreCharge? We tried, but without success, using the latest pyPLC and two different Model Y, as I understood one quite old and a newer. They stop the se...

Physically this exacty is the case. You can charge and discharge. The only blocker may be the software of the car, which could have a supervision that stops the thing. Some results are mentioned above in the thread, the MG is showing how great it could work.

serh270 wrote: ↑Tue Apr 23, 2024 7:28 pm is there an upper bound to how many times a sec it can be sent?

Good point. Not sure if somebody tested what happens if you send it each 250µs. But I think everything between 5ms and 500ms cycle time is fine.

Looks like some good progress. Next steps from my point of view: 1. Find a working serial-to-usb, to get a log file. This would help a lot to understand what is going on. 2. I propose to by a cheap STlink adapter for flashing new software. Flashing via the web interface works often, but sometimes cr...

Exactly. If the hybrid solar inverter has a battery voltage range of lets say 200 to 450V, it perfectly matches to a car battery. Somebody uses this here: https://www.goingelectric.de/forum/viewtopic.php?p=2193381#p2193381 He uses an inverter which allows to set the battery type "lead acid"...

Improved the Clara, that it shows also the CP PWM duty cycle in the log. https://github.com/uhi22/ccs32clara/actions/runs/8796526599 At some charger types it is necessary to put the plug back to the plug holder to terminate the charging session and to start a fresh one. For these, just unplugging fr...

The theory says, that it is not a good idea to charge cells which went below a certain voltage thresholds. Because at low voltage, chemical things happen which cannot be reverted (https://electronics.stackexchange.com/questions/219222/is-draining-a-li-ion-to-2-5-v-harmful-to-a-li-ion-cell) So if the...

ardillolambo wrote: ↑Mon Apr 22, 2024 11:21 am extended range and cruising

Does it make a difference in consumption to run in the one motor in neutral? I understand, some cars have a mechanical clutch to decouple the motor if not used.

No. A blocker on the PC would not prevent the esp from connecting your router. Are you sure your router provides a 2.4GHz wifi, not only 5GHz? Is the router near? Are you sure the wifi name and password is the same as the router expects?

Tested two Tesla Model Y - thanks to the great people in the Linux day in Augsburg! They stop at the PreCharge. Most likely it expects a physical voltage on the port during the PreCharge. Log is here: https://github.com/uhi22/pyPLC/blob/master/results/2024-04-20_ModelY_pyPLC_stop_in_precharge.pcapng...

This is normal. With pin 37 high, the device is a "Station", it does not publish an own wifi network. It will try to connect your home network, so it does not appear in a wifi list. The only relevant thing is that you provided the right name and password in the credentials file.