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宇文皓月“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bit0、3支持1

2、0、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 signaling 2

3、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: Networking Layer

4、 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 diagnos

5、tic 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尺度新能源汽车高速 CAN 网络节点级电子控制单元（

6、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。当诊断响应长度缺乏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“由网络工程师统一发布所有诊断ID分配，各系统填写各

7、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 n/a 150 msP2*server 0

8、 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 according to ISO14229-1. Addit

9、ional 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)Service NameDefaultExtended

10、ProgrammingPhysical AddressFunction Address10DiagnosticSessionControl 11EcuReset 27SecurityAccess 28CommunicationControl 3ETesterPresent 85ControlDTCSetting 22ReadDataByIdentifier 2EWriteDataByIdentifier 13 2FInputOutputControlByIdentifier 114ClearDiagnosticInformation 19ReadDTCInformation 31Routine

11、Control 13 34RequestDownLoad336TransferData337RequestTransferExit3说明：访问权限1暗示需要扩展平安级权限，3暗示需要编程平安级权限。The services need to support suppressPositveResponseBit (SPRS) are showed in following table.Tab 5.Services supported SPRS bitDiagnostic Services ListSupportSPRS bitSID(Hex)Service Name10DiagnosticSess

12、ionControl11EcuReset27SecurityAccess28CommunicationControl3ETesterPresent85ControlDTCSetting22ReadDataByIdentifier2EWriteDataByIdentifier14ClearDiagnosticInformation19ReadDTCInformation2FInputOutputContorlByIdentifier31RoutineControl34RequestDownload36TransferData37RequestTransferExitThe negativeRes

13、ponseCodes (NRC) used by ECU are defined as follows:Tab 6.Negative Response CodesNRC(Hex)Description11HserviceNotSupported12HsubFunctionNotSupported13HincorrectMessageLengthOrInvalidFormat22HconditionsNotCorrect24HrequestSequenceError36HexceededNumberOfAttempts31HrequestOutOfRange33HsecurityAccessDe

14、nied37HrequiredTimeDelayNotExpired35HInvalidKey72HgeneralProgrammingFailure78HresponsePending7FHserviceNotSupportedInActiveSession92H/93HVoltageTooHigh / voltageTooLow7EHsubFunctionNotSupportedInActiveSessionIf two or more NRCs are reasonable, the ECU could send the negative response message accordi

15、ng 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 diagnostic session enables a specific

16、 set of diagnostic services in the server(s).4.2.2.1.Message FormatRequest：ByteNameCvtValue(hex)#1RequestServiceIdentifierM10#2Sub-function = DefaultSession ProgrammingSessionExtendedDiagnosticSession M010203Positive Response：ByteNameCvtValue#1PositiveResponseServiceIdentifierM50#2Sub-Function=Defau

17、ltSessionProgrammingSessionExtendedDiagnosticSession 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：ByteNameCvtValue#1NegativeResponseServi

18、ceIdentifierM7F#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 timeout handling provisions. (e.g.

19、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 to enable all diagnostic servi

20、ces 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)DescriptionCvt12 The sub-function param

21、eter 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 diagnostic sessions in a server. In ord

22、er 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 up.The ECU shall return to Normal

23、/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 Positive Response (50h xx) message be

24、fore 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 previously and performed the requested

25、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 be used to keep the non-default d

26、iagnostic 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 transmitting any diagnostic messages, incl

27、uding 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-Function= ResetType: HardResetSoftResetM0103Negative Response：B