Optimization of Fuzzy Membership Function in Active Suspension for Improving Stability of a Combat Vehicle

As the combat vehicle should carry out the missions while driving on the uneven terrain, certain level of mobility performance is required before the manufacturing process as well as the firepower performance. Accordingly, it is very important to expect the performance of the combat vehicle with a virtual analysis model. In this paper, 6-wheel combat vehicle model is developed to evaluate the performance of mobility and firepower, and fuzzy logic based controller is applied for active suspension system. Vertical acceleration after passing the bump, pitch angle, and roll angle after firing are observed to evaluate the performance. Based on the results of the evaluation, shapes of the membership functions used in the fuzzy logic controller are optimized to enhance the stability of mobility and firepower of the combat vehicle