Riccardo Ninfa
Torque Vectoring Controls for Multi-architecture Battery Electric Vehicles.
Rel. Andrea Tonoli, Angelo Bonfitto. Politecnico di Torino, Corso di laurea magistrale in Automotive Engineering (Ingegneria Dell'Autoveicolo), 2022
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Abstract
This study investigates a method for enhancing Battery Electric Vehicle (BEV) longitudinal and lateral stability in a broad range of conditions. As with the state-of-the-art, a hierarchical control is developed: the upper layer uses vehicle state errors and predicted yaw acceleration in order to generate a corrective yaw moment using a sliding mode control (SMC); the lower layer distributes the total requested torque to the electric motors using a vertical-load-based torque distribution algorithm. The main contribution of this work is the additional term inside the yaw moment controller: the expected yaw acceleration of the vehicle is predicted, allowing a more effective action of the controller and thus reducing path errors.
Another contribution of this work is the development of a sliding mode-based cruise control, featuring good responsiveness when the velocity error is high and robustness when it approaches zero
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