1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15380-4:2013Railway applications Classification system for railway vehiclesPart 4: Function groupsBS EN 15380-4:2013 BRITISH STANDARDNational forewordThis British Standard
2、is the UK implementation of EN 15380-4:2013.The UK committee draws users attention to the distinction between normative and informative elements, as defined in Clause 3 of the CEN/CENELEC Internal Regulations, Part 3.Normative: Requirements conveying criteria to be fulfilled if compliance with the d
3、ocument is to be claimed and from which no deviation is permitted. Informative: Information intended to assist the understanding or use of the document. Informative annexes do not contain requirements, except as optional requirements, and are not mandatory. For example, a test method may contain req
4、uirements, but there is no need to comply with these requirements to claim compliance with the standard.When rounded values require unit conversion for use in the UK, users are advised to use equivalent values rounded to the nearest whole number. The use of absolute values for converted units should
5、 be avoided in these cases. For example:5 km/h has an equivalent value of 3 mile/hThe UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e R A E / 1 , R a i l w a y A p p l i c a t i o n s .A list of organizations represented on this committee can be obtained on r
6、equest to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 67611 6ICS 01.110; 45.060.01Compliance wi
7、th a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 15380-4:2013EUROPEAN STANDARD
8、NORME EUROPENNE EUROPISCHE NORM EN 15380-4 January 2013 ICS 01.110; 45.060.01 English Version Railway applications - Classification system for railway vehicles -Part 4: Function groups Applications ferroviaires - Systme de classification pour vhicules ferroviaires - Partie 4: Groupes des fonctions B
9、ahnanwendungen - Kennzeichnungssystematik fr Schienenfahrzeuge - Teil 4: Funktionsgruppen This European Standard was approved by CEN on 3 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
10、us of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ge
11、rman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croat
12、ia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Un
13、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15380-4:20
14、13: EBS EN 15380-4:2013EN 15380-4:2013 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Symbols and abbreviations 85 Functional structure 95.1 General remarks.95.2 Classification system used for functions .95.3 Code letters . 105.3.1 Code lett
15、ers used to designate first level function groups 105.3.2 Code letters used to designate function groups from the first to the third level 115.4 Transverse functions . 38Annex A (informative) Functions on level 4 and level 5 . 40Annex B (informative) Interrelation between EN 15380-2 and EN 15380-4 .
16、 65Annex C (informative) Code letters used to designate detail properties . 67Annex D (informative) Rules to define the function level . 70Annex E (informative) Rules to create function names 71E.1 General . 71E.2 Function terms 71E.3 Rules for creating function short names . 71Bibliography . 102Fig
17、ures Figure 1 Precept of function group indication . 10 Figure B.1 Interrelation between Function Breakdown Structure according to EN 15380-4 and Product Breakdown Structure according to EN 15380-2 . 66 Tables Table 1 Overview of 1st level functions. 11 Table 2 Listing of the level functions from th
18、e 1stlevel to the 3rdlevel 12 Table 3 Listing of the transverse functions and their levelling 38 Table A.1 Functions on level 4 and level 5 . 40 Table C.1 Classification of detail properties 68 Table E.1 List of function abbreviations 73 BS EN 15380-4:2013EN 15380-4:2013 (E) 3 Foreword This document
19、 (EN 15380-4:2013) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2013, a
20、nd conflicting national standards shall be withdrawn at the latest by July 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This
21、document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This series of European Standards “Railway applications Classification system for railway vehicles“ consists of the following parts: Part 1: General principles; Part 2: Product
22、 groups; Part 3: Designation of installation sites and locations; Part 4: Function groups (the present document); Part 5: Systems, System groups System requirements. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implem
23、ent this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
24、Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15380-4:2013EN 15380-4:2013 (E) 4 Introduction The Functional Breakdown Structure is used by all parties involved in the rolling stock product definition phase and the following processes to structure the functional
25、 requirements and use cases according to a standardized list of functions. It starts with the concept and spreads across the whole product life cycle. During this period, the level of detail of the structure could be adapted according to the project progress. This means that functions in a product c
26、oncept catalogue mainly are described by requirements. The transfer into implementable hardware and software takes place later. The Product Breakdown Structure (PBS) shown in EN 15380-2 and the Functional Breakdown Structure (FBS) shown in EN 15380-4 complement each other. While the PBS, consisting
27、of the standardized list of subsystems and devices, is used for structuring system requirements and related use cases, the FBS standard describes the functions of a vehicle and is used to obtain a correlation between functional requirements and the structure of functions and the related use cases. T
28、hese structures describe different views on the rolling stock product. The importance of the two structures may be different according to the users tasks as well the project stage (see also EN 15380-1:2006, Annex C). The FBS can also be used for specifying tasks as well as for analysing tasks. The f
29、unctional assessment supports the whole engineering process and the field of RAMS/LCC (Reliability, Availability, Maintainability, Safety/Life-Cycle Costs). Often during the project process RAMS/LCC values have to be given at a stage when insufficient information regarding the technical solution is
30、available. (At this stage of a project, EN 15380-2 is not applicable.) In all cases in which functionality is a key issue (e.g. safety and reliability analyses, inspections and testing, maintenance programmes, field data acquisition and related documentation), communication is based on a functional
31、vehicle structure composed of functional groups particularly when cross-system or interdisciplinary considerations are important. Functions are grouped into levels regardless of their vehicle specific technical realisation. Hence the function groups and function descriptions were developed without c
32、onsidering how each function may be achieved in practice. This is consistent with the EN 81346 series. This also applies when the functional vehicle breakdown structure is met in tracing vehicle properties, for example during the validation phase. Many of the required properties fixed in the product
33、 concept catalogue are realised, diagnosed and rated as functioning or malfunctioning during operation. Only afterwards is the link made to the physical structure and then to the assessment of the function of technical solutions. There is not necessarily a simple one to one relationship between each
34、 function and its technical realisation. A system or item of equipment can contribute to different functions at the same time or in sequence. This means that an entity can be related to different functions and even from different levels (see Annex A). Assignment of examples for well known function c
35、arriers are given for easier understanding. BS EN 15380-4:2013EN 15380-4:2013 (E) 5 1 Scope This European Standard is concerned with the functions associated with general railway vehicles or their assemblies. It covers functionality associated with systems and equipment such as wheelsets and bogies,
36、 doors, brakes and traction. This standard may also be applied to railway vehicles with very specific functions like track machines and snow ploughs. However, while the functions that are common with general railway vehicles are included, the functions which are specific to their work processes are
37、not included in this standard. They will be added for these individual projects. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undat
38、ed references, the latest edition of the referenced document (including any amendments) applies. EN 15663, Railway applications Definition of vehicle reference masses 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 function specific purpose o
39、r objective to be accomplished, that can be specified or described without reference to the physical means of achieving it SOURCE: IEC 61226:2009 Note 1 to entry: A function transfers (considered as a black-box) input parameters (material, energy, information) into aim related output parameters (mat
40、erial, energy, information) performed by technical means and/or human beings. 3.2 transverse function sub function which may apply to more than one higher level function Note 1 to entry: For example, providing diagnostics or displaying information. 3.3 Functional Breakdown Structure (FBS) hierarchic
41、al structure summarising a set of functions leading to the same general focus or service Note 1 to entry: To define the level of a function within a FBS, see Clause 5. 3.4 function level level of group functions of equal purpose Note 1 to entry: Assignment to the appropriate level is described in th
42、e rules. 3.4.1 1stlevel function functional domain or general focus or service for the considered (rolling stock) system BS EN 15380-4:2013EN 15380-4:2013 (E) 6 Note 1 to entry: In general, the first level function encompasses a set of functions related to a same general focus or service for the con
43、sidered (rolling stock) system. EXAMPLE Provide appropriate conditions to passengers, train crew and load. 3.4.2 2ndlevel function main function which contributes to complete the first level Note 1 to entry: In general, the 2ndlevel function encompasses a set of sub functions and contributes to the
44、completion of the first level. Note 2 to entry: If the next level of the functional domain is not related to a main function there could be a direct relation to a lower level function. 3.4.3 3rdlevel function sub function which contributes to complete the 2ndlevel Note 1 to entry: In general, the 3r
45、dlevel function encompasses a set level 4 functions (usually tasks) and contributes to the completion of the second level. Note 2 to entry: If the next level of the main function is not related to a sub function there could be a direct relation to a lower level function. 3.4.4 4thlevel function func
46、tion related to a task which contributes to complete the third level Note 1 to entry: In general, the 4thlevel function encompasses a set of level 5 functions (usually activities) and contributes to the completion of the third level. Note 2 to entry: If the next level of the sub function is not rela
47、ted to a task there could be a direct relation to lower level function (activity). 3.4.5 5thlevel function function related to an activity necessary for performing the 4thlevel function 3.5 requirement necessary condition or ability to constrain the solutions of a task or an aim Note 1 to entry: A r
48、equirement describes for example, performance characteristics, operational conditions and quality attributes, expressed as measurable and testable technical parameters or indicators. Note 2 to entry: Requirements are usually summarised in a specification. Note 3 to entry: Beside requirements allocat
49、ed to functions are additional requirements allocated to other features (e.g. design, manufacturing). 3.5.1 functional requirements specific need or capability of a FBS function Note 1 to entry: Functional requirements and use cases first come from passenger/payload and operator requests. Later in the engineering process, functional requirements from integrators and suppliers are added. They express the requirements on a certain functionality given in the FBS regarding interoperability
