本文件规定了铁路车辆制动性能的计算方法。 本文件描述了使用瞬时值输入计算制动设备和制动性能的通用算法/公式，包括停车/减速距离、制动功率和各类车辆（车辆或机组）的能量。 计算可在铁路车辆评估过程（设计、制造、测试、验证、调查等）的任何阶段进行。本文件未规定具体的验收标准（合格/不合格）。 本文件不打算用作选择制动系统的设计指南，也没有规定性能要求。 当要求的附着力水平超过可用附着力（车轮滑动活动）时，本文件不提供计算停车距离延长的方法。 本文件包含不同制动设备类型的制动力计算示例，以及车辆或装置停车距离计算示例。

This document specifies the methodologies for calculation of braking performance for railway rolling stock. This document describes the general algorithms/formulae using instantaneous value inputs to perform calculations of brake equipment and braking performance, in terms of stopping/slowing distances, braking power and energy for all types of rolling stock, either as vehicles or units. The calculations can be performed at any stage of the assessment process (design, manufacture, testing, verification, investigation, etc.) of railway rolling stock. This document does not set out specific acceptance criteria (pass/fail). This document is not intended to be used as a design guide for the selection of brake systems and does not specify performance requirements. This document does not provide a method to calculate the extension of stopping distances when the level of demanded adhesion exceeds the available adhesion (wheel slide activity). This document contains examples of the calculation of brake forces for different brake equipment types and examples of the calculation of stopping distance for vehicles or units.