Renault Kangoo 36
The phase 2 Renault Kangoo 36kWh pack consists of 12 modules, roughly 16kg 14x21x31 cm each in a 2P8S configuration. The usable capacity is apparently 33kWh. It uses a centralised BMS, like the Nissan Leaf, as opposed to a distributed BMS with each module having it's own satellite board. So care must be taken to ensure the cell tap plugs are connected in to the modules in the correct order or the BMS may be damaged. Also note the cell taps will have potentially high voltage across them.
Contactor Box
The pack doesn't have a negative contactor, the only way to isolate it is to pull the service disconnect. In the contactor box there's a current sensor, pre-charge resistor, pre-charge relay, main contactor and a 275a 1000V fuse.
The main contactor is 150a rated.
| Contactor box | Manual Service Disconnect socket | Mid Pack Fuse |
There are 2 external Low voltage Connectors for the battery pack.
Grey Yazaki x
| Pin | Internal Wire | Function |
|---|---|---|
| 1 | Black | 12v BMS supply via 10a fuse |
| 2 | x | |
| 3 | x | |
| 4 | x | |
| 5 | x | |
| 6 | Yellow | Can High |
| 7 | White | 12v Contactor supply via 15a fuse |
| 8 | x | |
| 9 | x | |
| 10 | x | |
| 11 | x | |
| 12 | Blue | Can Low |
Black Yazaki 7283-8854-30
| Pin | Internal Wire | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | x | |
| 3 | Green | Main Contactor (ground to close) |
| 4 | x | |
| 5 | Blue | Pre-charge relay (ground to close) |
BMS
Photos of the wiring below show the correct connection orientation for the BMS and the cell taps to the modules.
I've started putting together a DBC file, but this only covers the standard CAN frames.
DBC file: https://github.com/jamiejones85/DBC-files/blob/master/Kangoo.dbc
For the BMS to send out can frame a message on 0x423 needs to be sent.
When driving the contents of the 0x423 message is
| 0x07 | 0x1D | 0x00 | 0x02 | 0x5D | 0x80 | 0x5D | 0xD8 |
When charging the contents of 0x423 is
| 0x0B | 0x1D | 0x00 | 0x02 | 0xB2 | 0x20 | 0xB2 | 0xD9 |
And When rapid charging the contents of 0x423 is
| 0x07 | 0x1E | 0x00 | 0x01 | 0x5D | 0x20 | 0xB2 | 0xC7 |
I've not yet tested what affect these different messages have, if any.
ISO-TP
To get the individual cell voltages and some other information, ISO TP requests are required. I've written some code that'll decode these. Will be extending to run on an ESP32 to make the ISO-TP requests and decode.