Analysis of electric power steering control based on S/T method

Proceedings of the World Congress on Intelligent Control and Automation (WCICA)（2004）

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摘要

Aimed at the nonlinear MIMO system of electric power steering system, the nonlinear dynamic model of this system was established. Considering of the model error, H-∞ robust controller was obtained based on S/T method. Using mixed weighted sensitivity method, sensitivity function and complementary sensitivity function were designed. The simulation results show that the designed controller is proper. The closed loop system has better robust stability and can reject sensor noise and road perturbation effectively.

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关键词

H∞ control,MIMO systems,closed loop systems,control system analysis,control system synthesis,nonlinear control systems,nonlinear dynamical systems,position control,road vehicles,robust control,sensitivity analysis,steering systems,H∞ robust controller,S/T method,closed loop system,complementary sensitivity function,electric power steering system control,mixed weighted sensitivity method,nonlinear MIMO system,nonlinear dynamic model,road perturbation,robust stability,sensor noise rejection,

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