Study On The Operating Strategy Of20000t Intelligent Connected Train

Increase the marshalling of train is the main method of improving the railway transport capacity. While with the increasing of the marshalling, the longitudinal dynamics performance of the train is deteriorated, which has an adverse impact on the train of the safety and limits the increasing of the load. In the view of the longitudinal impulse of20000t connected train is too serious, this paper discussed the feasibility of applying the intelligent braking system to20000t connected train to release the longitudinal impulse, and the operating strategy of the train under different conditions is discussed.The intelligent braking system can realize the synchronous or asynchronous control based on the braking unit, the control strategy is appropriate or not determines whether the advantage of intelligent brake system can give full play to. In this paper, by using co-simulation systems of train air brake and longitudinal dynamics, analyzed the effect of the line characteristics and the braking characteristics on the longitudinal impulse; Determined the marshalling of the train based on the principle of the safety and the economy; Selected three typical lines of concave line (convex line), identified ten initial braking position on every line, put forward four kinds of asynchronous operating strategy and one synchronous operating strategy, made a comparison of the effect of the operating strategy on the longitudinal impulse with different brake operating conditions、different line、different initial braking position. Put forward the control strategy on all the kinds of the line.The operating strategy of the intelligent connected train is proposed in this paper:when the intelligent train brakes on the flat line or on the single ramp line, synchronous operating strategy should be used; When the train on the concave line, the action of the intelligent device should delay some time from the back to the front, in the other position synchronization control strategy is more appropriate, the delay time and the braking position should be depended on different brake mode and different different difference in gradients; When the train on the convex line, the action of the intelligent device should delay some time from the front to the back, in the other position synchronization control strategy is more appropriate, the delay time and the braking position should be selected depended on different brake mode and different difference in gradients.