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Implementation and Evaluation of an Electronic Control Unit for an Automotive Testbed
KTH, School of Electrical Engineering and Computer Science (EECS).
KTH, School of Electrical Engineering and Computer Science (EECS).
2023 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Modern vehicles rely on heavily electronically implemented functionalities. Withexpanding electrification in the automotive industry, as well as the advent of autonomous vehicles,the amount of implemented functionalities are increasing. This has resulted in a shift towardscentralized electronic architecture in automotive design.The aim of this project is to build and verify the firmware for a microcontroller, to be used in anautonomous driving testbed, with centralized architecture in mind. The microcontroller has tointerface with sensors and actuators, enable communication with a control unit and operate in a realtime system.The automotive testbed was conceived by the division of Electronics and Embedded Systems and thedivision of Mechatronics at KTH to support research activities targeting software platform andapplication aspects in the automotive domain.Drivers are built to operate peripheral components and facilitate communication. A real timeoperating system is used to ensure that the system can operate in real time.Measurements verify that sensor and actuator drivers deliver accurate readings and communicationtests show that the device is capable of transmitting and receiving information. Observations of thesystem demonstrate the successful timing characteristics necessary in a real time system.The report shows that the microcontroller preformes successfully in all tests and are able to meetthe required time constrains.

Abstract [sv]

Moderna fordon är beroende av kraftigt elektroniskt implementerade funktioner.Med växande elektrifiering inom fordonsindustrin, samt tillkomsten av autonoma fordon, ökarmängden implementerade funktioner. Detta har resulterat i en förskjutning mot centraliseradelektronisk arkitektur inom fordonsdesign.Syftet med detta projekt är att bygga och verifiera den fasta programvaran för en mikrokontroller,som ska användas i en testbädd för autonom körning, med centraliserad arkitektur i åtanke.Mikrokontrollern måste samverka med sensorer och ställdon, möjliggöra kommunikation med enstyrenhet och fungera i ett realtidssystem.Testbädden för fordon skapades av divisionen för Inbyggda System och divisionen för Mekatronik påKTH för att stödja forskningsaktiviteter inriktade på mjukvaruplattformar och applikationsaspekterinom fordonsområdet.Drivrutinerna är byggda för att styra kringutrustning och underlätta kommunikation. Ettrealtidsoperativsystem används för att säkerställa att systemet kan fungera i realtid.Mätningar verifierar att sensor- och ställdondrivrutiner levererar korrekta avläsningar ochkommunikationstester visar att enheten kan sända och ta emot information.Rapporten visar att mikrokontrollen presterar med framgång i alla tester och uppfyller kraven förtidsbegränsningarna.

Place, publisher, year, edition, pages
2023. , p. 193-202
Series
TRITA-EECS-EX ; 2023:151
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-341494OAI: oai:DiVA.org:kth-341494DiVA, id: diva2:1821922
Supervisors
Examiners
Projects
Kandidatexjobb i elektroteknik 2023, KTH, StockholmAvailable from: 2023-12-21 Created: 2023-12-21

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