Braking force distribution method and device for multiple units

Abstract

The invention provides a braking force distribution method and device for multiple units. The method comprises acquiring a target braking force of an entire train at present, wherein the target braking force of the entire train is the maximum braking force required to stop the entire train; acquiring a braking force capability value that can be applied by each unit of the entire train at present, wherein the braking force capability value of each unit includes a sum of an electric braking force and an air braking force that can be applied by all bullet trains and trailers in the unit; according to the target braking force and the braking force capability value of each unit at present, distributing a braking force target value of each unit on the basis of the load ratio of each unit, wherein the sum of the braking force target values of all the units is equal to the target braking force. By applying the method, the situation that the braking force difference between the units is too large when the bullet train or the trailer in a certain unit fails is avoided, so that the safe operation of the train is guaranteed.

Description

technical field [0001] The invention relates to the field of train braking, in particular to a method and device for distributing braking force of an EMU. Background technique [0002] With the sixth large-scale speed increase of the railway, a large number of EMUs with a speed of 200 kilometers per hour and above have been put into use and become the main model of high-speed passenger transportation in my country. In order to ensure the safety of high-speed train operation, the reliability of the train's braking system has become particularly important. The braking system is the safety guarantee for high-speed train operation, and a well-designed control strategy is required to ensure safe parking. [0003] The EMU is composed of multiple vehicles with different functions. Each vehicle is equipped with a braking system. The EMU contains two control devices: electric brake and air brake, while the control device on the trailer is only air brake. The braking system is mainly...

AI Technical Summary

Problems solved by technology

[0006] However, the existing distribution strategies of equal adhesion and equal wear all distribute the braking force according to the whole train. The existing train is divided into several independent air-electric composite braking control units according to the marshalling mode. When the vehicle braking force in a certain unit When there is a fault, if the braking force is distributed according to the equal adhesion and equal wear distribution strategy, the braking force applied by each unit may have a large gap, resulting in a large force on the coupler and reducing the safety of train operation

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