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Feedback Control of Pneumatic Brake of Urban Railway Train under ATO Mode

This paper presents an analysis of the accuracy of urban railway train's parking together with an elaboration of the system structure and principle of parking control in ATO mode. Through the construction of the model of pneumatic brake unit, the non-linear character of pneumatic brake unit is analyzed, and thereby the strategy of feedback control based on the train's position signal is given. Further on-vehicle tests have substantiated the feasibility of this method; meanwhile, the superiority of parking accuracy after the adoption of this method is also illustrated.