北京新能源汽车整车控制器系统诊断规范.docx

1、北京新能源汽车整车控制器系统诊断规范整车控制器系统诊断规范“EV160”文件编号：“EV160-20150002014” 编制：校对：审核：“业务高级经理”会签：“控制系统集成主管”批准：“部长”XXX年XXX月版本信息版本日期编制校对审核更新描述V1.0初始版本V1.120151127崔晓静崔晓静1、 修改数据链路层描述；2、 删除31服务的02子服务；3、 删除28服务的01、02子服务；4、 删除27 03、04子服务；5、 27添加seed为四个字节的随机数；6、 seed和key在列表中定4个字节；7、 删除2F 02子服务；8、 删除19 06子服务；9、 status改为仅bit

2、0、3支持10、删除NRC11；11、F184修改为9个字节；12、添加故障码中英文对照表；术语DTC故障诊断码BS Block sizeSTminMinimum Separation Time C有条件的M强制性执行U用户选用TBD待定义SID服务标识符DID数据标识符NRC负响应码UDS统一的诊断服务Server服务器Client客户端ECU电控单元1. 参考文献NO.参考文档题目1 ISO11898-1: 2003 Road vehicles - Controller area network (CAN) Part 1:Data link layer and physical signa

3、ling 2 ISO11898-2: 2003 Road vehicles - Controller area network (CAN) Part 2: High-speed medium access unit 3 ISO11898-5: 2007 Road vehicles - Controller area network (CAN) Part 5: High-speed medium access unit with low-power mode 4 ISO15765-2: 2004 Road Vehicle - Diagnostic on CAN Part 2: Networkin

4、g Layer Services 5 ISO15765-3: 2004 Road Vehicle - Diagnostic on CAN Part 3: Application Layer Services 6 ISO14229-1: 2006 Road Vehicle - Diagnostic Systems Diagnostic Services Specification 7 ISO15031-6: 2005 Road vehicles - Communication between vehicle and external equipment for emission-related

5、diagnostic Part 6: Diagnostic trouble code definitions 2. 网络拓扑“由网络工程师统一发布网络拓扑”Fig 1. C70GB-2014整车网络拓扑结构3. 诊断接口Fig 2. OBD诊断接口管脚描述1EVBUS CAN_H2/3/4接地5接地6/7/8/9EVBUS CAN_L10/11/12/13/14/15/16电源Tab 1. OBD 诊断接口针脚定义“由线束工程师统一发布OBD接口定义”4. 诊断需求4.1. 诊断协议4.1.1. 物理层物理层应满足ISO11898-2要求及北京新能源汽车股份有限公司企业标准新能源汽车高速 CA

6、N 网络节点级电子控制单元（ ECU）技术要求要求。4.1.2. 数据链路层数据链路层应满足ISO11898-1要求。所有诊断请求和应答帧的数据长度应为8字节，否则电控单元将忽略该诊断请求帧。当诊断响应长度不足8字节时，空余的字节应用0xAA填充。4.1.3. 网络层网络层应满足ISO15765-2要求和下述要求：4.1.3.1. 寻址方式可以支持物理寻址和功能寻址。诊断消息ID描述见下表：控制器名称简称物理寻址诊断请求ID(Hex)诊断响应ID(Hex)功能寻址诊断请求ID(Hex)实施网段驱动电机控制器MCU0x7E00x7E80x7DFEVBUSTab 2. 诊断 ID列表“由网络工程师

7、统一发布所有诊断ID分配，各系统填写各自的诊断ID至上表”4.1.3.2. 网络层时间参数ParameterValueUnit BS 8- STmin 20msParameterTimeout Performance Requirement Unit N_As/N_Ar 70 n/a ms N_Br n/a 70 ms N_Bs 150 n/a ms N_Cs n/a 70 ms N_Cr 150 n/a ms Tab 3. 网络层时间参数需求4.1.4. 应用层时间参数ParameterMin Max Timeout Unit P2server 0 50 n/a msP2client n/a

8、 n/a 150 msP2*server 0 2000 n/a msP2* clientn/an/a5000msP3client_phys2 P2server n/a n/a ms P3client_func P2server_max n/a n/a ms ParameterMin Nominal Timeout Unit S3server n/a n/a 5000 ms S3client 0 2000 4000 ms Tab 4. 应用层时间参数需求4.2. Diagnostic Services（ISO14229-1）Services shall be implemented accord

9、ing to ISO14229-1. Additional details are specified in this section.4.2.1. Supported Diagnostic ServicesThe overview of ECU supported diagnostic services is described in the following table.Table 5 Supported diagnostic services of ECUDiagnostic Services ListSessionSecurityAccessAddressingSID (Hex)Se

10、rvice NameDefaultExtendedProgrammingPhysical AddressFunction Address10DiagnosticSessionControl 11EcuReset 27SecurityAccess 28CommunicationControl 3ETesterPresent 85ControlDTCSetting 22ReadDataByIdentifier 2EWriteDataByIdentifier 13 2FInputOutputControlByIdentifier 114ClearDiagnosticInformation 19Rea

11、dDTCInformation 31RoutineControl 13 34RequestDownLoad336TransferData337RequestTransferExit3说明：访问权限1表示需要扩展安全级权限，3表示需要编程安全级权限。The services need to support suppressPositveResponseBit (SPRS) are showed in following table.Tab 5. Services supported SPRS bitDiagnostic Services ListSupportSPRS bitSID(Hex)Se

12、rvice Name10DiagnosticSessionControl11EcuReset27SecurityAccess28CommunicationControl3ETesterPresent85ControlDTCSetting22ReadDataByIdentifier2EWriteDataByIdentifier14ClearDiagnosticInformation19ReadDTCInformation2FInputOutputContorlByIdentifier31RoutineControl34RequestDownload36TransferData37RequestT

13、ransferExitThe negativeResponseCodes (NRC) used by ECU are defined as follows:Tab 6. Negative Response CodesNRC(Hex)Description11HserviceNotSupported12HsubFunctionNotSupported13HincorrectMessageLengthOrInvalidFormat22HconditionsNotCorrect24HrequestSequenceError36HexceededNumberOfAttempts31HrequestOu

14、tOfRange33HsecurityAccessDenied37HrequiredTimeDelayNotExpired35HInvalidKey72HgeneralProgrammingFailure78HresponsePending7FHserviceNotSupportedInActiveSession92H/93HVoltageTooHigh / voltageTooLow7EHsubFunctionNotSupportedInActiveSessionIf two or more NRCs are reasonable, the ECU could send the negati

15、ve response message according to the following priority rules： The 7Fh NRC have the highest priority; For others, the NRC with smaller number has higher priority.4.2.2. DiagnosticSessionControl（10H）This service is used by the client to enable different diagnostic sessions in the server(s). A diagnos

16、tic session enables a specific set of diagnostic services in the server(s).4.2.2.1. Message FormatRequest：ByteNameCvtValue(hex)#1RequestServiceIdentifierM10#2Sub-function = DefaultSession ProgrammingSessionExtendedDiagnosticSession M010203Positive Response：ByteNameCvtValue#1PositiveResponseServiceId

17、entifierM50#2Sub-Function=DefaultSessionProgrammingSessionExtendedDiagnosticSession M010203P2server =#3byte#1M00-FF#4byte#2M00-FFP2*server =#5byte#1M00-FF#6byte#2M00-FFTiming P2server value is provided in 1ms resolution.Timing P2*server value is provided in 10ms resolution.Negative Response：ByteName

18、CvtValue#1NegativeResponseServiceIdentifierM7F#2RequestServiceIdentifierM10#3NegativeResponseCodeMNRCSub-function Parameter DefinitionHEXDescription Cvt01 DefaultSessionThis diagnostic session enables the default diagnostic session in the server(s)and does not support any diagnostic application time

19、out handling provisions. (e.g. no TesterPresent service is necessary to keep the session active).M02ProgrammingSessionThis diagnostic session enables all diagnostic services required to supported the memory programming of a server.M03 ExtendedDiagnosticSessionThis diagnostic session can e.g. be used

20、 to enable all diagnostic services required to support the adjustment of functions like “Idle Speed, CO Value, etc.” in the servers memory. It can also be used to enable diagnostic services, which are not specifically tied to the adjustment of functions.MNegative Response Codes (NRC)NRC(Hex)Descript

21、ionCvt12 The sub-function parameter in the request message is not supported.M13 The length of the message is wrong.M22 The ECUcurrent conditions do not allow the change ofdiagnostic Session.M4.2.2.2. Implementation RulesThis service is used by the diagnostic tool to enable different types of diagnos

22、tic sessions in a server. In order to execute a diagnostic service the appropriate session has to be started first.There shall be only one diagnostic session active at a time.Normal/Default Session (01h) shall be enabled automatically by the ECU if no diagnostic session has been requested at power u

23、p.The ECU shall return to Normal/Default Session (01h) after timeout of ExtendedDiagnostic Session.The ECU shall be capable of providing all diagnostic functionality defined for the default diagnostic session under normal operating conditions.The ECU shall first send a DiagnosticSessionControl Posit

24、ive Response (50h xx) message before the new session becomes active in the ECU.A DiagnosticSessionControl Positive Response (50h xx) message shall be returned by an ECU if the diagnostic tool requests a session that is already running. If the ECU has already received the same request message previou

25、sly and performed the requested operation, the ECU shall continue to perform the current operation (i.e. it is not a change of the session).The ECU shall remain in its current diagnostic session if it is not able to switch into the requested diagnostic session.The TesterPresent (3Eh) service shall b

26、e used to keep the non-default diagnostic sessions active by retriggering S3server. Also any other service request shall retrigger S3server.A functional TesterPresent (3Eh) request without response may be sent at any time, even regardless of any other service in progress.When receiving or transmitti

27、ng any diagnostic messages, including 3Eh service, the S3servertimer will reset.Fig 3. Session transition diagram4.2.3. ECUReset (11H)This service requests the server to effectively perform an ECU reset based on the content of the ResetType parameter value (suppressPosRspMsgIndicationBit (bit 7) not shown).4.2.3.1. Message FormatRequest：ByteNameCvtValue(hex)#1RequestServiceIdentifierM11#2Sub-Function= ResetType: HardResetSoftResetM0103Positive Response：ByteNameCvtValue#1PositiveResponseServiceIdentifierM51#2Sub-Func