H∞ networked fuzzy control for vehicle lateral dynamic with limited communication

Abstract

This paper concerns the problem of networked control for vehicle lateral dynamic stability. Based on the Takagi-Sugeno (T-S) fuzzy representation of the vehicle, the state feedback and observer-based control designs are addressed. These controllers should guarantee the global stability of the resulting closed-loop fuzzy system with a prescribed H∞ disturbance attenuation level. Digital communication network conditions, such as network-induced delays, data packet dropouts and limited communication capacity due to signal quantization are taken into consideration. Using fuzzy Lyapunov-Krasovski functional, we derive a less conservative delay-dependent criterion for stability analysis and control synthesis of networked control systems with a quantizer. Simulation results illustrate the effectiveness of the proposed approach.