Recent content by Frud

Yes I am using the original dashboard PIDs. I started this project before I even bought the car. It was intended for installation on a replica Porsche 356, on i-miev units. With the outbreak of the war, the customer stopped funding, and I continue to develop it for my car. I use mcp2115+Arduino...

I tried to assemble a dashboard for C-Zero with a custom design using Nextion HMI. Porsche 356 style))

How else can you use cell temperature other than enabling cooling when charging CHAdeMO? Does it affect the movement of the car? Is it acceptable to reduce power/turtle when overheating?

Do I understand correctly that battery cooling is not used while driving?

The temperature of individual cells is indeed available on the BMU/ECU CAN bus, but there is a question! Does this data affect the battery heating/cooling control from the ECU, or does the BMU control the battery heating/cooling directly with a separate PID. This remains to be seen. I don't...

I plan to use an independent cell temperature measurement system and broadcast the data to the BMU bus. I don’t know yet whether it will be necessary to make an additional CAN bridge CMU-BMU, or whether it will be possible to use only the CAN bridge BMU-ECU.

I have to disappoint you. Even if you get rid of the factory plastic case of the cell, you will not be able to accommodate more than 44s1p. You will also need to cut off the jumpers at the bottom of the battery case.

Dimensions of useful volume 385x650x190 mm. I was considering the option with E600B cells. But it can only be placed in one block in the 44s1p configuration; there is not enough space for 44s2p. The approximate size of the 44s1p E600B block is 385x650x140 mm (5x9) or 385x650x170 mm (4x11). This...

The second battery pack is ready. While the old battery is on the car, I assembled and tested the CAN bridge. I used Arduino Nano and 2 MCP2515 boards. So far everything is working well. I managed to change the SoC, cell voltage, battery voltage. The bridge is powered by an Ignition BMU. I...

pid 346[3] bit1 - error pid 346[3] bit4 - turtle pid 346[3] bit5 - ready pid 346[3] bit6 - AC plugged

Here is the discharge curve of NMC LG E63 cells. She seems more suitable.

Thanks David. Now everything has fallen into place. What voltage is considered as 0% SoC?

I built a graph of the storeSoC() function and very accurately combined it with the graphs from the article. A significant discrepancy is visible. How can this be explained? I'm confused.

I built a graph of the storeSoC() function and very accurately combined it with the graphs from the article. A significant discrepancy is visible. How can this be explained? I'm confused.

Can I see the original voltage2SoC curve? I want to compare the resulting modified storeSoC function with the curve.