Active neuro-fuzzy integrated vehicle dynamics controller to improve the vehicle handling adn stability at complicated maneuvers

摘要

With the recent advancements in vehicle’s industry, driving safety inpassenger vehicles is considered one of the key issues in designing any vehicle.According to other studies Electronic Stability Control (ESC) is consideredto be the greatest road safety innovation since the seatbelt. Yet ESC hasits drawbacks, that encouraged the development of other stability systems tocorrect or compensate these draw backs. But to efficiently make up for theESC problems the integration of various control systems is needed, which isa pretty complicated task on its own. Lately, solving this stability problembecame a hot research topic accompanied by the market demands for improvingthe available stability systems.Therefore, this thesis aims to add an innovative approach to help improvethe vehicle stability. This approach consists of an intelligent algorithm thatcollects data about the vehicle characteristics and behavior. Then it uses anArtificial Neural Network to construct a fuzzy logic control system throughlearning from the optimum control values that was generated beforehand bythe intelligent algorithm. This way, the proposed controller didn’t depend onlyon experts’ knowledge like the other controllers presented in the literature.This makes the controller more generic and reliable which is a very importantaspect in designing a safety critical controller, like the presented one, whereany fault in it can lead to a fatal accident.Also using the technique of using an Artificial Neural Network to constructa fuzzy logic control allows benefiting from the learning and autoautoadaptioncapability of neural networks and the smooth controlling performancethat fuzzy logic controllers offers.Simulations results show the effectiveness of the proposed controller forimproving the vehicle stability in different driving maneuvers. Where the controller’sresults were compared to an uncontrolled vehicle and another vehicle controlled by a controller from the literature. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------