...
- Separate the power distribution board into front and rear power distribution boards
- Charge the supplemental battery with energy from the DC-DC converters
- Collect data on load voltage and current consumption
- Protection against load or harness being shorted to ground
- Add current limiting
Low-Voltage Systems and Current Requirements
Assume all systems are powered by around 12 V. Ideally, the front and the rear power distribution boards should be very similar.
| Gdriveconnector | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rear Power Distribution Board
...
- MS12: Front and rear solar master boards
- MS14: Single solar sense module?
...
Charging Supplemental Battery
...
High-Side Driver
Low-Current HSD
Current Limit: < 1A @ 12-13.5V
| Front | Rear |
|---|---|
Peripheral Displays & Cameras (Use a simple circuit to distribute the current) | Solar Master (Front) |
| Steering Board | Solar Master (Rear) |
| Pedal Board | Rear View Camera |
| Spare | Spare |
Medium-Current HSD
Current Limit: < 6-8A @ 12-13.5V
| Front | Rear |
|---|---|
| Front Lights Board | Motor Interface |
| Center Console | Rear Lights Board |
| Horn? (8A) | Spare |
High-Current HSD
Current Limit: < 20A @ 12-13.5V
| Front | Rear |
|---|---|
BMS Carrier (Master & Slave) (due to high inrush current to the relays) | Front Power Distribution (around 16A at the maximum) |
Supplemental Battery
MS12 use a 12 V 10-cell? NiMH battery as the supplemental battery. It is used to power the minimal necessary systems to check the battery system and the reset of the car before closing the main battery relays.
...