Speed Segmentation Method of Train Braking Curve for High-Speed Railway

被引：0
|
作者：
Zhang Y. [1 ]
Chen Z. [1 ]
Wang J. [1 ]
Zhang G. [1 ]
机构：
[1] Research Institute of Safety Control Technology, CRSC Research & Design Institute Group Co., Ltd., Beijing
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2021年 / 42卷 / 05期
关键词：
Deceleration curvature; Segmented deceleration model; Speed segmentation; Train braking curve calculation; Train control system;
D O I：
10.3969/j.issn.1001-4632.2021.05.18
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In view of the negative influence caused by the large number of speed segmentations when using the European standard method to calculate train braking curves, a speed segmentation method of combining deceleration curvature and equal interval segmentations is proposed. Using the three-point curvature calculation method, the deceleration curvatures of all basic speed segmentation points are calculated. Taking the abrupt change points as the segmentation points, the speed segmentations based on deceleration curvatures are obtained. Then, in the high-speed stage, the speed segmentation with large span is divided into equal interval to obtain the final speed segmentations. Taking CRH 380AL high speed EMU as an example and based on the vehicle braking parameters of this type of EMU, 2 equal and 3 equal interval speed segmentations are carried out respectively according to the proposed method, and the braking curves are calculated. The absolute value of braking distance deviation is compared with that of the braking curve calculated by basic speed segmentation. The results show that the proposed method can obtain more accurate train braking curves with less speed segmentations and achieve a good balance between the accuracy and efficiency of the calculation results of train braking curves, which can ensure the train operation safety without reducing the operation efficiency. © 2021, Editorial Department of China Railway Science. All right reserved.
引用
收藏
页码：155 / 161
页数：6
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