hello from germany again! I am glad to see your car running in the real world! 👍 Keep up with your awesome work, even if chademo charging is not working - I am sure you will succeed at the end! 👍
My experience of the chademo port is that the cable needs to be plugged in & pushed firmly into charge port. Not sure how you have the port mounted, but it looked like all the weight was on the connector. If you look at the leaf, the port is more vertical, and the cable doesn't seem to pull on the connector so much
DC chargers are sometimes a bit tricky, my ID.3 had an issue yesterday with Total Energy ones, so it might not be your fault. Try another one from a different brand. Good luck in fixing. It has been an awesome ride! Seems to drive quite nicely, the gearbox doesn't sound loud!
Hello Flying tools, this comment is intended to cheer you up. From immediate success, even if welcome, not an awful lot can be learnt. However, from failure you can learn a lot. You will have to dig in to the wiring, the signals and signaling, the diagnostic trouble codes and their meaning and conditions, maybe also the safety checks around CHAdeMO charging. My recommendation would be to run this against a CHAdeMO simulation first - not an actual CHAdeMO charger - to mitigate risks. And connect a CAN bus monitor (such as SavvyCAN together with a decent CAN bus interface) to the CAN bus lines on the CHAdeMO socket in your nice car. This way, you can see what is going on between the CHAdeMO side in your car (likely a charge controller or integrated with a BMS) and the CHAdeMO connector on the infrastructure side. This insight and knowledge, that you will get, will also help with eventually later converting it to CCS. You will develop a way of structured analysis of charging problems that can help you with many other problems as well.
I didn't realise you are using a Leaf BMS. Do you monitor it with Leafspy? It's pretty easy to connect up with a Bluetooth ODB2 dongle. I'm using a Leaf BMS with my eGolf battery pack but I cannot use it while driving due to the voltage drop between the front and rear battery boxes. I can see an issue in Leafspy at the cell which connects to the front battery box.
Yes, leaf spy it is. It seems to be sensitive with different lengths of the balance leads. It works ok for me, I which I had the 62kwh BMS though. What kind of issue do you have with your setup? How is the car behaving?
@@flyingtools My BMS is not controlling anything. I can only use it to monitor the cell voltages when the car is stationary as cell 40 (the last at the front of the car) shows very high or very low depending on whether I'm driving or charging. This is because of the voltage drop between cell 40 and 41 due to the length of cable between them even though it is 50mm2. The BMS is not designed to have long connections between the cells. I just keep an eye on the pack voltage to know if I'm close to running out of electrons.
No, I will create my own later. I have to prioritise other stuff at the moment. But it would be super nice to have that and some other functions to work in the dash.