نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
Stability control of mobile robots in three-dimensional uneven terrains is of great importance due to the risk of rollover caused by increased lateral angles. In this paper, the design and modeling of a four-wheeled mobile robot with auxiliary mechanisms aimed at enhancing its longitudinal and lateral stability is presented, along with a closed-loop control approach. This research focuses on providing a solution to maximize the stability, safety, and maneuverability of a four-wheeled mobile robot. The proposed approach involves adding two actuators to control the yaw and pitch angles. The yaw angle is managed by a motor connected to an inverted pendulum, while the pitch angle is controlled by a motor linked to a flywheel. Furthermore, the stability of the mobile robot was controlled using torque control methods and a Linear Quadratic Regulator (LQR), applied through the aforementioned mechanisms. Simulation results in MATLAB demonstrate the high efficiency and accuracy of the employed control methods and mechanisms.
کلیدواژهها English