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Modelling of fully electric vehicle for driving simulator

By: Contributor(s): Series: ExamensarbetePublication details: Göteborg : Chalmers University of Technology, 2024Description: 125 sSubject(s): Online resources: Dissertation note: Examensarbete (VTI) Abstract: Driving simulators have an important role to play in the automotive industry regarding driver safety and economic benefits, and also carry out some driving behavior studies unsuitable for real roads. Therefore, driving simulators should reflect the real driving experience as much as possible. In order to realize this purpose, it is necessary to develop mathematical car models for driving simulators. This master’s thesis project revises an existing vehicle dynamic model to embody the driving experience of an all-electric vehicle in a driving simulator. The main work of this project is to replace the powertrain system of the original model from an internal combustion engine powertrain to an all-electric vehicle powertrain. This part includes modeling the electric motor, battery, and redistribution of traction force. The features of the all-electric vehicle, such as the one-pedal driving mode, regenerative braking system, and faster response time, are implemented. Also, based on the consideration of regenerative braking, the braking system of the original model was improved in this project so that it can work together with the regenerative braking system. Other parts of the original model were adjusted to fit the relevant parameters of the vehicle used in the experimental tests. Subsequently, the project conducted real-world driving experiments on a Volvo C40. A series of experiments were carried out on the powertrain system by turning the single pedal mode on and off, as well as hard braking experiments. The experimental data were used to adjust the model’s parameters, and the final model was obtained.
Item type: Master thesis
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Examensarbete (VTI)

Driving simulators have an important role to play in the automotive industry regarding driver safety and economic benefits, and also carry out some driving behavior studies unsuitable for real roads. Therefore, driving simulators should reflect the real driving experience as much as possible. In order to realize this purpose, it is necessary to develop mathematical car models for driving simulators. This master’s thesis project revises an existing vehicle dynamic model to embody the driving experience of an all-electric vehicle in a driving simulator. The main work of this project is to replace the powertrain system of the original model from an internal combustion engine powertrain to an all-electric vehicle powertrain. This part includes modeling the electric motor, battery, and redistribution of traction force. The features of the all-electric vehicle, such as the one-pedal driving mode, regenerative braking system, and faster response time, are implemented. Also, based on the consideration of regenerative braking, the braking system of the original model was improved in this project so that it can work together with the regenerative braking system. Other parts of the original model were adjusted to fit the relevant parameters of the vehicle used in the experimental tests. Subsequently, the project conducted real-world driving experiments on a Volvo C40. A series of experiments were carried out on the powertrain system by turning the single pedal mode on and off, as well as hard braking experiments. The experimental data were used to adjust the model’s parameters, and the final model was obtained.