Audi A2 Conversion: Difference between revisions
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(Created page with "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...") |
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On this page we describe the conversion of an Audi A2 1. | On this page we describe the conversion of an Audi A2 1.4i petrol to electric propulsion. We will use the following components: | ||
* Nissan Leaf 24 kWh battery pack with original BMS | * Nissan Leaf 24 kWh battery pack with original BMS | ||
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=== ECU === | === 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 | 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 | ||
VAG wire color codes: | |||
[[File:VAG wire color codes.png|thumb]] | |||
{| class="wikitable" | {| class="wikitable" | ||
|+ECU pinout | |+ECU pinout 1.4i (AUA, BBY) | ||
!# | !# | ||
!orig function | !orig function | ||
| Line 26: | Line 28: | ||
|permanent 12V | |permanent 12V | ||
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| | |ro | ||
|- | |- | ||
|4 | |4 | ||
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|28 | |||
|From generator (maybe DF) | |||
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|li/bl | |||
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|65 | |||
|Fuel pump relay- control | |||
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|ro/br | |||
|} | |} | ||
Revision as of 18:58, 6 February 2022
On this page we describe the conversion of an Audi A2 1.4i 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 VAG wire color codes:
| # | orig function | our function | wire color |
|---|---|---|---|
| 1,2 | GND | ||
| 3 | permanent 12V | ro | |
| 4 | ignition 12V | ||
| 28 | From generator (maybe DF) | li/bl | |
| 65 | Fuel pump relay- control | ro/br |