Structure and inner electrical connection
The cell supervision circuits are connected to the battery management electronics (SME) via an internal Local Controller Area Network.
| Item | Explanation |
|---|---|
| 1 | High-voltage battery unit |
| 2 | Cell supervision circuit |
| 3 | Cell module |
| 4 | Fuse |
| 5 | Control electronics for the heating (depending on the options fitted) |
| 6 | Safety box |
| 7 | Switch contactor for the preloading |
| 8 | High-voltage connection (positive terminal) of the high-voltage battery unit |
| 9 | High-voltage connection (negative terminal) of the high-voltage battery unit |
| 10 | High-voltage interlock loop of the high-voltage connection to the high-voltage electrical system |
| 11 | Switch contactor (positive terminal) |
| 12 | Switch contactor (negative terminal) |
| 13 | Connection to the circuit of the high-voltage interlock loop |
| 14 | Safety battery terminal |
| 15 | SME control unit |
| 16 | Bus connection (PT-CAN2) |
| 17 | Cell supervision circuit with sensors for the measurement of the cell voltage. |
| 18 | Cell block with several battery cells |
| 19 | Lithium-ion battery |
| 20 | Sensors for temperature measurement in the cell block |
| 21 | Heating of the high-voltage battery (depending on the options fitted) |
| 22 | Voltage and current sensor |