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1、DRAFT FOR DEVELOPMENT DD CLC/TS 50457-2:2008 Conductive charging for electric vehicles Part 2: Communication protocol between off-board charger and electric vehicle ICS 35.240.60; 43.120 ? Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI DD CLC/TS 50457-2:20
2、08 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008 ISBN 978 0 580 57821 2 National foreword This Draft for Development is the UK implementation of CLC/TS 50457-2:2008. This publication is not to be regarded as a Br
3、itish Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application can be obtained. Comments arising from the use of this Draft for Deve
4、lopment are requested so that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated not later than three years after its publication by the European organization so that a decision can be taken
5、 on its status. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European
6、Standard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent to the Secretary of the responsible BSI Technical Committee at British Standards House, 389 Chiswick High Road, London W4 4AL. The UK participation in its preparation was entrusted to Technical Com
7、mittee PEL/69, Electric vehicles. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Amendments/corrigenda issue
8、d since publication DateComments Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFICATION CLC/TS 50457-2 SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION March 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen
9、de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. CLC/TS 50457-2:2008 E ICS 35.240.60; 4
10、3.120 Supersedes ENV 50275-2-4:1998 English version Conductive charging for electric vehicles - Part 2: Communication protocol between off-board charger and electric vehicle Charge conductive pour vhicules lectriques - Partie 2: Protocole de transmission entre le chargeur extrieur et le vhicule lect
11、rique Konduktive Ladung von Elektrofahrzeugen - Teil 2: Kommunikationsprotokoll zwischen externem Ladegert und Elektrofahrzeug This Technical Specification was approved by CENELEC on 2007-03-01. CENELEC members are required to announce the existence of this TS in the same way as for an EN and to mak
12、e the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany,
13、 Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI Forew
14、ord This Technical Specification was prepared by the CENELEC Reporting Secretariat 69, Electric road vehicles and electric industrial trucks. The text of the draft was submitted to vote in accordance with the Internal Regulations, Part 2, Subclause 11.3.3.3 and was approved by CENELEC as CLC/TS 5045
15、7-2 on 2007-03-01. This Technical Specification is to be used in conjunction with EN 61851-1. This Technical Specification supersedes ENV 50275-2-4:1998. In the framework of the conversion of ENV 50275-2-4, Clause 2 has been updated. The following date was fixed: latest date by which the existence o
16、f the CLC/TS has to be announced at national level (doa) 2008-07-01 _ CLC/TS 50457-2:2008 2 Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI Contents Page Introduction . 4 1 Scope . 5 2 Normative references 5 3 Definitions . 5 4 Off-board charging system 6 5
17、 Communication interchange 6 6 Service definition . 8 7 Communication session 8 8 Coding implementation 12 Annex A (informative) Communication: Example of normal operation . 22 Table 1 List of services used 8 Table 2 Use of services 9 CLC/TS 50457-2:2008 3 Licensed CopyChinese University of Hong Kon
18、g, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI Introduction This Technical Specification “Conductive charging for electric vehicles“ is published in separate parts according to the following structure: This Technical Specification covers the physical, electrical and performance requirements concern
19、ing devices for the charging system, when they are not already standardized. Part 1: D.C. charging station. Part 2: Communication protocol between off-board charger and electric vehicle. CLC/TS 50457-2:2008 4 Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI
20、1 Scope This Technical Specification applies to the communication data link between external charger and electric road vehicle for the charging procedure, using the most common communication link. This Part 2 applies to communication data link between the off-board charging system with direct curren
21、t and electric road vehicles. The aspects covered are the physical layer, the data link layer and the communication applicative layer. This Technical Specification does not cover communication between dedicated off-board charger and their electric vehicle. Annex A gives an example of normal operatio
22、n. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14229 Road vehicles
23、 - Diagnostic systems - Diagnostic services specifications ISO 14230-1 Keyword Protocol 2000 Part 1: Physical layer ISO 14230-2 Keyword Protocol 2000 Part 2: Data link layer ISO 14230-3 Keyword Protocol 2000 Part 3: Application layer 3 Definitions For the purposes of this document, the following ter
24、ms and definitions apply. 3.1 vehicle charging control unit (VCCU) system embedded in the electric vehicle able to command and control the charging parameters of the off-board charger 3.2 charging parameters parameters including set points needed by the off-board charger to generate a current adapte
25、d to the vehicle battery 3.3 charging values values measured during charging process CLC/TS 50457-2:2008 5 Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI 4 Off-board charging system 4.1 General overview Electric vehicles will be equipped with different tec
26、hnologies, voltage and charging current batteries. In order to avoid any error during charging and to guarantee that the off-board charger will be able to charge all existing and future batteries, the charge shall be managed by the vehicle. Any vehicle to be connected to a general purpose off-board
27、charging system must include a charging control unit able to manage the charging process. 4.2 Charging process The off-board charger shall be able to supply controlled DC voltage and/or current to the vehicle battery. The charging values current and voltage shall be measured at least by the off-boar
28、d charger. If the vehicle charging control unit also makes this measurement, a full redundancy system could be established to achieve a high safety charging system. The charging parameters shall be established by the vehicle charging control unit and sent to off-board charger in order to be used as
29、set points. The charging measured values will be sent by the off-board charger to the vehicle charging control unit. 4.3 Safety process The start of the charging process shall be allowed by both the off-board charger and the vehicle charging control unit. The charging process can be stopped at any t
30、ime by the off-board charger or the vehicle charging control unit and shall be stopped in case of communication loss. 5 Communication interchange 5.1 Protocols basis The standard data interchange is based on ISO 14230. 5.2 Adaptation for off-board charging application The scope of ISO 14230 concerns
31、 requirements for diagnostic systems implemented on a serial data link layer, which allows a tester to control diagnostic functions in and on vehicle electronic control unit. The same protocol is used for the communication between an electric vehicle and an off-board charger for the charging procedu
32、re. After the initialization phase by the OBC, the VCCU shall control the charging process of the OBC. Contrarily to communication according to ISO 14230 where the server and the client are fixed during all the session, the roles are definitively reversed after the initialization phase. 5.3 Initiali
33、zation header values Initialization header values are those defined in ISO 14230-2 except for those specified hereafter. CLC/TS 50457-2:2008 6 Licensed CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI 5.3.1 Initialization mode The initialization mode is 5 bauds only.
34、 5.3.2 Address The address sent to open the communication to the vehicle charging control unit shall be 66 h (functional address). NOTE 66 h is the value 66 in hexadecimal code. 5.3.3 Key bytes The key bytes are defined in accordance with ISO 14230-2 with for KB1: AL0 = 1 AL1 = 0 HB0 = 1 HB1 = 0 TP0
35、 = 1 TP1 = 0 That is to say the following two key bytes: KB2 KB1 Hexadecimal code Decimal code 10001111 11010101 8FD5 2005 KB2 is the most significative key byte. The key bytes will define the state of the protocol; any change in the protocols for future use will change the key bytes. 5.4 Message st
36、ructure 5.4.1 Message length The maximum length for charging application shall be 16 bytes (included header and check-sums). 5.4.2 Message header values The message header values shall be changed and defined as follows: number of header bytes: 1 as defined in 8.1.2. CLC/TS 50457-2:2008 7 Licensed Co
37、pyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI 6 Service definition 6.1 Basis The services definition is based upon the draft of ISO 14229 with the following main differences: diagnostic is hereby replaced by data interchange; client (tester) is replaced by the vehic
38、le charging control unit (VCCU); server (ECU) is replaced by the off-board charger (OBC); as there is only one server, no server identifier parameter shall be provided. 6.2 List of services used Table 1 List of services used Services of ISO 14229 used for this application Generic services (client) G
39、eneric services (server) Diagnostic management TesterPresent TestDevicePresent StopDiagnosticSession StopSession Specific code StopSessionRequest Data transmission ReadDataByLocalIdentifier ChargerCharacteristics ChargerIdentification ReadDataByLocalIdentifier VehicleIdentification Stored data trans
40、mission ReadDiagnosticTrouble Codes ReadDiagnosticTrouble Codes Input/Output Control InputOutputControlByLoca lIdentifier SetSafetyLimits SetpointAdjust DisplayMessage StartCharging StopCharging 6.3 Message interchange rules After initialization, at any time the server is waiting for a request. Any
41、request sent by the client must be acknowledged by the server. The server has the possibility to stop the session by using the generic StopSessionRequest answer. 7 Communication session In this clause the generic messages to be sent are written in italics. CLC/TS 50457-2:2008 8 Licensed CopyChinese
42、University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI 7.1 Phases The communication sequence uses 7 main steps: a) communication opening; b) charger identification; c) vehicle identification; d) starting charging process; e) charging process; f) ending charging process; g) closing com
43、munication. The use of services, for each step, is detailed hereafter. Table 2 Use of services Communi- cation Opening (a) Charger identifi- cation (b) Vehicle identifi- cation (c) Safety limits (d1) Starting charging process (d2) Charging process (e) Stopping charging process (f) End of commu- nica
44、tion (g) ChargerCharacteristics M (b) A F F F F F F ChargerIdentification F A F F F F F F VehicleIdentification F M (c) A F F F F F ReadDiagnosticTroubleCodes F A A A A A A F DisplayMessage F A A A A A A F SetSafetyLimits F F M (d1) A F F F F StartCharging F F F M (d2) A A A (d2) F SetpointAdjust F
45、F F F M (e) A F F StopCharging F F F F F A (f) A F StopSession A (g) A (g) A (g) A (g) A (g) A (g) A (g) F StopSessionRequest A A A A A A A F TestDevicePresent A A A A A A A F A = Allowed, A(x) = Allowed, go to step (x), F = Forbidden, M(x) = Mandatory, go to step (x). CLC/TS 50457-2:2008 9 Licensed
46、 CopyChinese University of Hong Kong, 20/10/2008 09:27, Uncontrolled Copy, (c) BSI 7.2 Basic session sequence 7.2.1 Communication opening The off-board charger starts the initialization sequence as defined in ISO 14230-2. Direction OBC-VCCU VCCU-OBC OBC-VCCU VCCU-OBC Content 66h 55h KB1 KB2 70h 99h
47、Speed 5 Bd 10,4 kBd At the end of the initialization sequence, the VCCU becomes the master and shall manage all the other sequences by sending appropriate requests to the OBC. 7.2.2 Charger identification ChargerCharacteristics This request is used to inform the VCCU of the major characteristics of
48、the OBC ChargerIdentification. This request is used to identify the OBC (for instance: OBC manufacturer, OBC owner, OBC version.) 7.2.3 Vehicle identification VehicleIdentification This service intends to identify the vehicle. It can be used for instance to provide the charger with an access control
49、 facility, it can identify the version of the communication protocol. In case of an unauthorised vehicle, the OBC shall answer to the request with a StopSessionRequest message. Any further request request in this session shall get the same answer. 7.2.4 Starting charging process SetSafetyLimits The OBC shall not be allowed to supply any power before receiving this request. StartCharging From receiving this reque