simon lehtonen

Working as a system engineer responsible for the Vehicle Mode Management system and the start function. The work includes function and system design, test case and test process development as well as support of all functions, systems and ECUs with sleep, wake-up and communication behavior solutions.

We investigated the performance of two controller system setups for a cooling system in the combined heat and power plant in Rya. The main part of this thesis was to model and simulate the cooling system in Simulink to enable the analysis of controller performance. Techniques used: Simulink, Thermolib, PID Controller

I reviewed and reworked the test suite for the Vehicle Mode Management system. This required an extensive walkthrough of all requirements describing the system as well as understanding the implementation of the VMM concept and related fields.

I developed a proof of concept for diagnostics of high speed automotive data links. The purpose of this thesis was to investigate if it is possible to detect a broken data link as well as detecting trends showing deteriorating signal quality. The proof of concept included techniques such as signal eye pattern, decoding errors, pixel differences and retransmission errors. A test rig based on Maxim Integrated’s GMSL technology was used for development and verification of the proof of concept. To verify the functionality, EMC disturbances was injected on the data link according to the standard RI130. Techniques used: Python, UART, LVDS, GMSL, EMC, RI130, ISO7637, EN-61000, ISO26262

During this summer course I learned about the fundamentals of Swedish Law.