Train traction control method and system

Abstract

The invention provides a train traction control method, which comprises the following steps: firstly, setting a to-be-achieved accelerated speed target value a1 and testing a present speed v of a train; acquiring an ideal torque F1(v) and a practical resistance n suffered by the train according to the accelerated speed target value a1 and the present speed v; calculating and acquiring a traction torque F2(v) practically required by the train for achieving the accelerated speed target value a1 according to F2(v)=F1(v)+nr; distributing the traction torque F2(v) practically required by the train to each traction driving device of the train. Through the process, the output power of a traction motor is continuously adjusted, so that the train can run at a constant accelerated speed, and the stability and comfort loss of the train and the burden of a driver during the running process caused by the continuous change of the accelerated speed are avoided.

Description

Technical field [0001] The invention belongs to the technical field of train operation control, and particularly relates to the technical field of train traction control. Background technique [0002] During the acceleration / deceleration process of the train, due to its internal characteristics (changes in the mechanical conversion efficiency of the traction drive system) and constantly changing external disturbances (high winds, road breaks, train weights, rail adhesion coefficients), the trains are different Under operating conditions, the tractive force of the same level cannot guarantee that the train runs at a constant acceleration. The continuous change of train traction acceleration will cause three problems. First, time-varying acceleration will deteriorate the smoothness and comfort of train operation; second, under time-varying acceleration, in order to maintain train stability, the driver needs to constantly adjust the handle level It will increase the burden on the d...

AI Technical Summary

Problems solved by technology

[0002] During the acceleration / deceleration process of the train, due to the influence of its internal characteristics (the change of the mechanical conversion efficiency of the traction drive system) and the constantly changing external disturbances (gale wind, road breaking, train weight, rail adhesion coefficient), the train is in different Under running conditions, traction at the same level cannot guarantee that the train runs at a constant acceleration

The constant change of the traction acceleration of the train will lead to three problems. First, the time-varying acceleration will deteriorate the stability and comfort of the train running; second, under the time-varying acceleration, in order to maintain the train’s position, increasing the driver's burden; third, it is impossible to accurately control the running time of the whole train

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