Stability Analysis of a Control System for Automotive Wiper Systems with Nonlinear Friction

In controller design for practical commercial systems, the robust stability analysis is required to guarantee the safety and performance under unknown disturbance and dynamics perturbations. This paper presents a numerical method for analyzing the robust stability of a control system for an automotive wiper system with nonlinear friction. After the dynamics perturbation due to unknown friction is represented by a Lu're system, the small gain theorem is applied to verify the robustness of the control system. Simulation results demonstrate the effectiveness of the proposed approach.