An overview of the Automotive Software Area https://www.youtube.com/watch?v=QN0dbWpyPU0

1. Automotive Software
Basics
Medhat HUSSAIN

2. Abstract
The objective is to give an overview about the
Automotive industry today. No deep technical
details will be covered!

3. AGENDA
 Terms
 Production chain
 ECUs within the vehicle (classification and examples)
 Automotive booming areas (AD, e-mobility and connectivity)
 Communication protocols
 Programming languages used
 Technical positions
 AUTOSAR (Classical and adaptive)
 Processes (V-Model, SCRUM and KANBAN)
 Recommended Sites and Trainings

4. Terms
OEM: Is the car manufacture e.g. BMW, Audi,
VOLVO and …
Tier 1: is first supplying level to the OEMs e.g.
BOSCH, Continental VALEO and …., also they are
the ECUs producers.
Tier 2: is the supplier for the Tier 1, mainly to
provide the HW and our some other tools, e.g.
Vector, Elektrobit
ECU: Electronic control unit

5. Production chain
OEM
Tier1
Tier2

6. ECUs within
the vehicle

7. ECUs Examples
 WCU: wiper control unit
 DCU: Door control unit
 TCM: Top column module
 BCM: Body control module
 ASM: Active safety Module (ADAS)
 HU: Head unit “infotainment unit”
 BMU: Battery management unit
 …

8. ECUs Functionalites Areas
Classical ECUs e.g. WCU, DCU, …
Modern ECUs: e.g. ASM, HU and …

9. ECUs
ECU
Classical
Non-real-
time
Hard-
Real-time
Modern
Non-real-
time
Soft-
Real-time

10. Booming Areas
 AD: Autonomous driving.
 EM: Electrical mobility (electrical vehicles).
 Connectivity: V2X communication (V2V, V2 cloud , ….).
 Infotainment : Head units.

11. Booming Areas

12. Communication

13. Communication
Buses
Intra ECU buses
• I2C
• SPI
• …
Inter ECU buses
• LIN
• CAN
• Flexray
• Ethernet
• …

14. Communication

15. Programming
languages
C/C++, mainly for the low level
and the high performance
functionalities.
Matlab/simulink , mainly for the
application layer modeling
Python, mainly for the scripting
and the integration activities

16. Technical positions
DEVELOPMENT INTEGRATION ARCHITECT

17. AUTOSAR
Overview: AUTomotive Open System ARchitecture

18. AUTOSAR
ASR
Classical Adaptive

19. Classical AUTOSAR

20. Classical AUTOSAR

21. Adaptive AUTOSAR

22. AUTOSAR
 Classical
 OS: OSEK (Electrobit, Vector Oss
and …)
 Limited HW resources needed.
 Static: Suitable for safety critical
applications ASIL-D.
 Architecture: CBA „Component
Based Architecture“
 Adaptive
 OS: Posix (RT Linux, QNX , …)
 Needs high resources
Computational capabilities,
memory and connectivity
bandwidth.
 Dynamic: Suitable for application
till ASIL-B
 Architecture: SOA „Service
Oriented Archietcure“

23. AUTOSAR

24. Processes
 V-Model
 Agile
 SCRUM
 Kanban

25. V-MODEL

26. SCRUM

27. Kanban

28. Recommended Sites and Trainings
 https://www.youtube.com/user/Linux4Embedded
 https://en.cppreference.com/w/
 https://www.youtube.com/watch?v=ihXE1Iu5E3o

29. References
 https://www.autosar.org/