파라미터 추정을 통한 에어서스펜션 멀티 챔버 밸브 전류 제어

Abstract

Current controller is applied for the air suspension multi-chamber valves by using inductance and resistance of valve as parameter. Since the resistance of multi-chamber valve can be changed from the internal/external temperature sources, current control performance of multi-chamber valve can be degrade due to the uncertainty of resistance. Therefore, estimation for the resistance uncertainty is necessary. In this paper, multi-chamber valve current control of air suspension by using parameter estimation is proposed. By using Lyapunov theorem, control input and parameter estimation law are derived. The validity of the proposed method is shown by simulation results.