Each ECU in the vehicle has some features. Since the grouping of vehicle features to ECUs varies a little from OEM to OEM, even vehicle models to models, I cannot give a definitive list of ECUs and its features. But I can provide a list of functions that typically go into individual ECUs.I have combined them into groups to get a better overview
- Powertrain
- Engine control, transmission and gear control;
- Motion control
- ACC (Adaptive Cruise Control), Steering control systems;
- Chassis, e.g.
- ABS (Antilock Braking System), ESP (Electronic Stability Program), Electronic Suspension systems ;
- Body (comfort)
- air conditioning and climate control, dashboard, wipers, lights, doors, seats, windows, mirrors, cruise control, park distance control;
- Telematics/wireless and driver assistance
- infotainment, GPS and in-vehicle navigation systems, rear-seat entertainment, park assist;
- Passive safety
- airbags, belt pre-tensioners;
In addition to these specific applications, the ECUs must have some common features
- Communication - Communication with other ECUs and smart actuators, sensors, etc.. Eg. CAN, LIN, etc..
- Debugging - Facility to debug complicated SW issues during SW development, Typically done with JTAG port connected to Debugger
- Flashing/Re-flashing - Support for flashing during development – via JTAG, DAP ports and Support for flashing for OEM and re-flashing in service center – Bootloader via communication channel
- Measurement/Calibration - Measurement and calibration via communication channel – eg. XCP
- Regulatory - Emission, Brake response time, OBDII, etc..
- Safety & Warranty - ISO26262(driver,passenger safety),component protection ,etc..
- Development considerations - Testability - Facilities to test the HW/SW without too much effort. Eg. – I/O routines, DET, DLT, etc..; Modularity, portability, reusability, scalability, sharing
- Performance - Response time, fault reaction time, etc..
- Diagnostics - Facilities to detect errors by OEM , service centers , Independent testers, etc..
- Security - Tuning protection, cyber-security,etc..
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