Design And Testing of a Propulsion Supervisory Controller for an Electric Vehicle All-Wheel Drive Powertrain
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Dickson, David Braeden
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Abstract
This research is funded by the EcoCAR EV Challenge, sponsored by the U.S. Department of Energy, GM, and MathWorks. The EcoCAR EV Challenge tasks teams with removing the stock electric powertrain in a 2023 Cadillac LYRIQ and replacing it with a new electric powertrain of the team's choice. This new configuration can include anywhere from one to four electric motors. This thesis covers work aimed at designing and testing a PSC for a 2023 Cadillac LYRIQ. Since the original powertrain for the vehicle will be replaced with an alternative powertrain selected by the team, a custom PSC must be developed to control the non OEM added components and work with the OEM controllers to enable vehicle functionality.
Each chapter of the thesis covers a particular subsystem or group of subsystems within the PSC except for chapters nine and ten. The chapters dedicated to subsystems discuss the system requirements, controller design, controller testing, and current testing statuses for each subsystem or group of subsystems. Chapters nine and ten discuss MIL and HIL testing methodologies which build upon the basic unit testing discussed in each subsystem chapter. In this case, the model fidelity increases with each level of testing building from unit testing, MIL testing, and HIL testing into VIL testing where the PSC is deployed into the vehicle.
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2024-04-15
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