Revision history of the OPEN ECU - aeonSolutions/AeonLabs-AI-Volvo-MKII-Open-Hardware GitHub Wiki
Main Page >> ECU >> Revision history of the OPEN ECU
Last update 08-08-2024
- Added DC-DC power Isolation
- ..
revision 03-2024
The main EMS microcontroller is the EspressIF Systems ESP32 S3 microcontroller a dual core Xtensa LX7 Core Processor running at 240MHz with 512Kb RAM and of 8MB PSRAM. This is the main MCU that is responsible to do real-time engine management of a vehicle. This hardware revision will be made to fit engines with up to 12 cylinders with an option to run bi-fuel systems such as LPG, each with its own engine map configuration. This hardware revision is a totally new PCB design and a direct replacement of factory ECus found on P2 Volvos. Currently is being fabricated the first prototype boards for later being tested.
revision 12-2023
To design the very first revision (12-2023) for my open hardware electronics ECU I'll be using what is already available on the open communities in particular the Speeduino project (see its GitHub repository here). Their open hardware ECU solution is a flexible, fully featured Engine Management System (EMS aka ECU) based on the low-cost and open source Arduino platform. It provides the hardware, firmware, and software components that make up an engine management system, all provided under open licenses. With over 1000 installations, Speeduino has matured into a product that meets the needs of the hobbyist and enthusiast community without driving prices to the levels of traditional aftermarket ECUs.
The main MCU, the MK64FX512VMD12 from NXP, is a Kinetis® K64 MCU, Based on Arm® Cortex®-M4 Core, running at 120 MHz and it has 256KB of SRAM (also found on the Teensy 3.5). This is the main MCU that is responsible to do real-time engine management of a vehicle. The first hardware revision will be made to fit engines with up to 8 cylinders with an option to run bi-fuel systems such as LPG, each with its engine map configuration. This hardware revision was replaced by revision 03-2024 and it was never tested, however, it is almost a duplicate of the DropBear ECU by Speeduino. It is now available on the KiCad OPEN ECU Folder for anyone to download and use on their projects.
🟢 Fully tested and working
A green circle means the hardware electronics or the programming code was fully tested, each of its functionalities and capabilities. And it can be installed in a vehicle. Keep in mind this does not mean errors won't happen. As in everything related to electronics and software, there are revisions and updates. This open hardware is no different.
💯 Fully tested & working, no improvements necessary - already being sold online
🆓 Fully Open hardware \ source code
🤪 There's better than this. don't use it
🔐 Fully closed hardware \ source code
⚡️ fully tested and working, however, it is a dangerous solution to deploy
🟡 Not tested. Working capability is unknown, it may work or not.
A yellow circle means the hardware electronics or the programming code was not fully tested, each of its functionalities and capabilities. This does not mean it not working, it simply means testing is needed before giving a green circle of approval.
🔴 Fully tested but not working.
A red circle means the hardware electronics or the programming code was fully tested, and found some kind of critical error or fault. This means the electronics or firmware code cannot be used in a vehicle.
⌛ Not started.
The hourglass means the hardware electronics or the programming hasn't started. Most likely because is waiting for the necessary test components needed for reverse engineering and also engineering of the new open solution.
🆕 New updated contents
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