Department of Electrical & Electronics Engineering
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Browsing Department of Electrical & Electronics Engineering by Author "ALHAJDIBO, Moustapha ALHAJDIBO"
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Item TYRE SLIP CONTROL METHODS FOR ELECTRIC VEHICLES(2022-01-17) JAVED, NOFAL; ERTAN, Hulusi Bülent; ALHAJDIBO, Moustapha ALHAJDIBOThe goal of this research is to model an electric vehicle model in Simulink of MATLAB. The vehicle type taken under consideration is 4×4 all individual wheel operating battery electric vehicle with a curb weight of 1080 kg, all wheels are operated under same road conditions. The Newton’s motion laws are the key approach while designing the model. Traction control system (TCS) along with anti-lock brake system (ABS) are the control techniques that are followed as primary aspect while scheming the model. Once an EV model is modelled the simulation give results to different parameter i.e., longitudinal velocity, lateral velocity, yaw rate, longitudinal acceleration, lateral acceleration, yaw acceleration, different type of forces acting on the wheels of an electric vehicle, etc. The aim of my research is to find the Slip of the electric vehicle. Slip is the relative motion between the tyre and the road surface on which the vehicle is moving. The Slip plays different results by applying different steering values, the values of steering angle are taken in between -30º to +30º. Slip also varies and depends on different road conditions i.e., wet, dry, snow or ice. In my electric vehicle model, different road conditions (i.e., dry asphalt, wet asphalt, snow and ice) are taken under consideration. The range of slip is always between 0 and 1. The tyre model I followed is Pacejka tyre model in other words magic tyre formula. After obtaining the Slip three different controller approaches are provided individually. The reason to apply controllers is to obtain the desired and accurate result in terms of slip. The proposed controller techniques are proportional-integral- derivative controller (PID), sliding mode controller (SMC) and fuzzy logic controller (FLC). All three type of controllers are feedback controllers that means the output obtained will be again given back as input to the controller to minimize the error attained. Once the controllers i.e., PID, SMC and FLC are applied then the results of all three individual controllers are obtained and then the comparisons are performed one by one of each controller. The result obtained by my vehicle model i.e., slip particularly, will be later associated with some other seeks made on identical topic. The results performed on the electrical vehicle shows that the FLC give the best result among all three controller techniques.