Method of Electric Bus Protection from Rolling Back on Slopes
DOI:
https://doi.org/10.31181/rme482Keywords:
Electric Bus, Slope, Traction Motor, PID ControllerAbstract
Urban environments may have slopes, and therefore vehicles that operate therein have to ascend and descend these slopes. Ascending slopes may feature signal-controlled intersections, passenger stops, and other points that require vehicles to stop. All these situations are associated with the risk of the vehicle rolling back and causing a traffic accident. This requires a functionality to keep the vehicle on a slope. This problem is especially relevant for electric vehicles. This paper presents the results of developing an electric bus protection method to prevent rolling back on slopes as an algorithm to keep the vehicle in place using the traction motor. This method and algorithms are developed with the MATLAB and Simulink software package. The primary virtual and field trials are carried out on the proving ground of the KAMAZ PJSC Research and Development Center. The authors justify the development of the protection method to prevent electric vehicles from rolling back on slopes. They suggest a method to keep the vehicle in place that does not require measuring the slope angle. Virtual trials were carried out to confirm the control strategy, and field tests were performed to confirm the applicability of the method in real-life conditions. The practical significance of the research and developments lies in the possibility of applying the design methods and principles of the algorithm responsible for keeping an electric car or electric bus in place on slopes and their subsequent implementation.
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