EFIGenie

An open source engine management. It uses a taskmanager and is coded in a operation oriented architecture.

The target microcontroller at the moment are the cheap but powerful STM32 line of processors but any microcontroller can be ported by creating just 4 services, AnalogService, DigitalService, PwmService, TimerService that can be found in the https://github.com/FL0WL0W/EmbeddedIOServices repository. A large benefit to this architecture is that new sensors/abilities/features/etc. can be added very easily and can be chosen between the old and new through the configs. which means decoders can be changed, sensors added or removed, features added or removed. all without having to recompile. There are also some wrapper classes where things like two step rev limiters can be implemented or tri-step or even quad-step. still have a list of things to complete but i am at a state where i am testing the ecu. At this point it has run an engine https://www.youtube.com/watch?v=jJOaTFBkKEE

Features

• Customizable(size, limits, and axis) 3D Fuel and Ignition Maps (Speed Density, Alpha N)
• Customizable formulas for all engine parameters
• Cusotmizable inputs and outputs
• Unlimited cylinder sequential injection and ignition (Depends on hardware)
  • Stm32Devboard - 8 cylinder sequential fuel and ignition (10, 12, 14, 16 wasted spark/banked injection)
• Flexible Crank Cam Decoder
  • GM 24x (Cam + Crank, Crank Only, or Cam only)
  • Universal 1X decoder
  • Configurable Missing Tooth Decoder
  • --More to come
• Firmware features
  • Unit Tests to ensure everything works
  • Operation Architecture
  • Easily add new sensors

Building

After trying with a few different toolchains the tool chain that seemed to work the best is GCC/G++9.

• Ubuntu 20.04
• GCC/G++9
• CMake

VSCode Extensions:

• C/C++
• CMake
• CMake Tools
• Cortex-Debug
• GoogleTest Adapter

sudo apt-get install cmake gcc g++ gdb

Building the Tests

Make

TODO List

• *Logging
• *Idle Control
• *Create unit tests
• Prime
• After Start Enrichment
• Flex fuel Sensors
• Rev Limiting (Hard and Soft Spark)
• Launch control (Hard and Soft Spark)
• Customizable(size and seperations) FuelTrim Predictive Multi Channel Historic Table
• Fuel Trim (Wideband/Pid and Narrowband | predictive based on TPS or MAP)
• Tach Output
• Temperature Bias between ECT and IAT
• TPS and MAP acceleration enrichment
• Individual injector trims
• Transmission Control (Paddle shift transmission solenoid)
• Transmission Control (line pressure control)
• Transmission Control (automatic gear shifts)
• Electric Fan Control
• Fuel Pump (On/Off, PWM Open loop or PID Control Loop)
• VVT control (PWM - Open loop or PID control loop)
• Boost control (PWM - Open loop or PID control loop)
• CAN Bus/OBD2

*High Priority