Power Management in Electric Vehicles
Authors
Madsen, Søren Thyregod ; Nørgaard, Christian Poul
Term
4. term
Education
Publication year
2021
Submitted on
2021-05-28
Pages
93
Abstract
Dette speciale undersøger, hvordan kraftstyring kan optimere ydeevnen i AAU Racings første elektriske Formel Student-racer, AAUER. Med afsæt i teamets designvalg udvikles en samlet MATLAB/Simulink-model af drivlinjen og køretøjsdynamikken for at sammenligne kontrolmetoder til trækkraftkontrol og blokeringsfri bremsning, regenerativ bremsning, feltorienteret styring og maksimal moment pr. ampere. Kontrolstrategierne samles og afprøves i simuleringer af de dynamiske FSAE-discipliner, og resultaterne benchmarkes mod pointsystemet fra FSG Hockenheim 2012. Simuleringerne viser, at en strategi baseret på MTPA kombineret med regenerativ bremsning og en lineær traction- og ABS-kontroller giver den bedste samlede præstation med en score på 527,5 ud af 600 mulige, når skidpad-disciplinen udelades. Arbejdet giver dermed et simuleringsbaseret beslutningsgrundlag for valg af kontrolarkitektur til AAUER.
This thesis examines how power management can improve performance in AAU Racing’s first electric Formula Student car, the AAUER. Based on the team’s design choices, an integrated MATLAB/Simulink model of the drivetrain and vehicle dynamics is developed to compare control methods for traction control and anti-lock braking, regenerative braking, field-oriented control, and maximum torque per ampere. The control strategies are assembled and tested through simulations of the dynamic FSAE events, and the outcomes are benchmarked against the scoring system from FSG Hockenheim 2012. The simulations indicate that a strategy using MTPA with regenerative braking and a linear traction and ABS controller delivers the best overall performance, achieving 527.5 out of 600 points when the skidpad event is excluded. The work provides a simulation-based basis for selecting the control architecture for the AAUER.
[This summary has been generated with the help of AI directly from the project (PDF)]
Keywords
FSAE ; AAU Racing ; EV ; traction control ; anti-lock brake system ; MTPA ; STSMC ; FOC ; regenerative braking ; battery pack design
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