Audi A2 Conversion
Jump to navigation
Jump to search
On this page we describe the conversion of an Audi A2 1.4 petrol to electric propulsion. We will use the following components:
- Nissan Leaf 24 kWh battery pack with original BMS
- Toyota Prius Gen 2 (2004-2009) transaxle with matching inverter
- openinverter Prius Gen2 motor controller
- openinverter main board running stm32-car (VCU in ECU enclosure)
Pin mapping
We start out by mapping out useful pins of the original wire harness
ECU
The ECU has two connector slots, a smaller one with pins 82-121 and a larger one with pins 1-81. Here we map out pins useful to us
| # | orig function | our function | wire color |
|---|---|---|---|
| 1,2 | GND | ||
| 3 | permanent 12V | ||
| 4 | ignition 12V |