Specification of Diagnostic Event Manager, AUTOSAR R22-11, CP, No.19
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用語(terms)
| Term | Description |
|---|---|
| Activation Mode 1 | Absence of malfunction - The MIL shall blink for one flash. |
| Activation Mode 2 | "on-demand-MI" - The MIL shall show blink for two flashes if the OBD system would command an on-demand-MI according to the discriminatory display strategy. |
| Activation Mode 3 | "short-MI" - The MIL shall blink for three flashes if the OBD system would command a short-MI according to the discriminatory display strategy. |
| Activation Mode 4 | "continuous-MI" - The MIL shall remain continuously ON ("continuous-MI") if the OBD system would command a continuous-MI according to the discriminatory display strategy. |
| Aging | Unlearning/deleting of a no longer failed event/DTC after a defined number of operation cycles from event memory. |
| Aging Counter | The "Aging Counter" or "Aging Cycle Counter" or "DTC Aging Counter" specifies the counter which is used to perform Aging. It counts the number of operation cycles until an event/DTC is removed from event memory. |
| Class B1 counter | Number of engine hours during which a Class B1 malfunction has been Confirmed and TestFailed. |
| Combined DTC | Normal DTC, but referenced by multiple events reported by several monitors (e.g. ECU Defect, consisting of different HW defects). |
| Continuous-MI counter | Hours run by the engine while a continuous MI is commanded. |
| Cumulative Continuous-MI counter | Number of engine hours during which MI has been continuously commanded to be on during its lifetime. |
| Debounce counter | Internal counter for counter-based debouncing algorithm(s). |
| DemComponent / Monitored Component | A monitored component is a part of the system, which is checked for proper operation by one or several monitorings. (see chapter 7.5) |
| Dem-internal data value | Some data values (e.g. the occurrence counter) are calculated by the Dem module itself internally. |
| Denominator | The denominator of a specific monitor m (Denominatorm) is a counter indicating the number of vehicle driving events, taking into account conditions specific to that specific monitor. |
| Dependent / Secondary ECUs | Dependent / Secondary (or dep. / sec. ) ECUs are always related to a Master or a Primary ECU. |
| Directed acyclic graph | Dependency graph without circular dependencies. |
| Displacement | Replacing the the most insignificant event memory entry by a more significant event memory entry which needs to be stored. |
| DTC group | Uniquely identifies an set of DTCs. A DTC group is mapped into the range of valid DTCs. By providing a group of DTCs it is expressed that a certain operation is requested on all DTCs of that group. The DTC group definition is provided by ISO 14229-1[2] and OEM/supplier specific. |
| DtcGroupAllDtcs | Grouping of all configured DTCS (representation is 0xFFFFFF). |
| Event combination | Event combination is a method to merge several events to one specific combined DTC. It is used to adapt different monitor results to one significant fault, which is clearly evaluable in a service station. |
| Event debouncing | Debouncing is a specific mechanism (e.g. counter-based) to evaluate, if the diagnostic event gets qualified. This works on top of potential signal debouncing and can be done within the SW-C or inside the Dem. |
| Event confirmation | A diagnostic event is confirmed in case of repeated detection of qualified events over cycles or time evaluated by means of fault confirmation counters. Therefore, also the UDS status bit 3 (ConfirmedDTC) is set. Event memory An event memory (e.g. Primary memory) consists of several event memory entries. |
| Event memory entry | The event memory entry is a single storage container for an event and its event related data. The event memory entry is dynamically assigned to specific events. |
| Event memory overflow indication | The event memory overflow indication indicates, if this specific event memory is full and the next event occurs to be stored in this event memory. |
| Event qualification | A diagnostic event is qualified in case of a passed or a failed result is set (Dem-internal or reported from another BSW module or SW-C). |
| Event related data | Event related data is additional data, e.g. sensor values or time stamp/mileage, which is stored with an event in an event memory. ISO defines two types of event related data: freeze frames (snapshot records) and extended data. |
| Event status byte | Status byte as defined in ISO 14229-1 [1], based on event level. |
| Extended data record | An extended data record is a record to store specific information assigned to a fault. |
| Failure counter | The Failure counter represents the Trip Counter according to ISO14229-1 [2]. The Trip Counter counts the number of operation cycles (driving cycles) where a malfunction occurred. If the counter reaches the threshold (e.g., 2 driving cycles) the confirmed bit changes from 0 to 1. |
| Fault Detection Counter | sint8 value as used in ISO and FDC-APIs. |
| Freeze frame | Freeze frame is defined as a record of data (DIDs/PIDs). Freeze frames are the same as SnapShotRecords in ISO-14229-1[2]. |
| General Denominator | The general denominator is a counter indicating the number of times a vehicle has been operated, taking into account general conditions. |
| Healing | Switching off the warning indicator including the handling of reported passed results over a period of time / several operation cycles |
| In-Use performance ratio | The in-use performance ratio (IUPR) of a specific monitor m of the OBD system is: IUPRm = Numeratorm / Denominatorm |
| Master ECU | As a primary ECU a Master ECU stores “it’s own” and “reported errors” of related dep. / sec ECUs in it’s event memory. Beside this a Master has to fulfill special Master tasks as MIL Master or provision of “general nominator” information. |
| Monitor | A diagnostic monitor is a routine entity determining the proper functionality of a component. Alternatively the term “diagnostic function” can be used. |
| Numerator | The numerator of a specific monitor m (Numeratorm) is a counter indicating the number of times a vehicle has been operated such that all monitoring conditions necessary for that specific monitor to detect a malfunction have been encountered. |
| NvM is marked for NvM_WriteAll | The Dem has called NvM_SetRamBlockStatus() to set the according NvM Block to be written by NvM_WriteAll() |
| Operating cycle | An ‘operation cycle’ is the base of the event qualifying and also Dem scheduling (e.g. ignition key off-on cycles, driving cycles, etc.) |
| OBD | On-Board Diagnostics, or OBD is a generic term referring to a vehicle’s self-diagnostic and reporting capability. OBD systems give the vehicle owner or a repair technician access to state of health information for various vehicle sub-systems. |
| OBD ECUs | "In a vehicle there can be 3 different types of OBD ECUs: • Master ECU (one per vehicle) • Primary ECUprimary ECUs (several per vehicle) • Dependent / Secondary ECUs (several per vehicle) |
| OBD UDS DTC separation | The feature will report a different 3 byte DTC number for SAE J1979-2 based UDS communication than for none J1979-2 UDS communication |
| P-Code | Power train code |
| PFC cycle | Permanent fault code - driving cycle (OBD Term) |
| Positive Callback from NvM | The Dem module shall use the APIs NvM_WriteBlock and NvM_GetErrorStatus of the NVRAMManager [5], if there is the necessity to store data between Dem_Init and Dem_Shutdown. Furthermore the API NvM_GetErrorStatus shall wait for positive response if writing of block completed successfully. |
| PossibleErrors | PossibleErrors means the ApplicationErrors as defined in meta model |
| Primary ECU | A primary ECU stores “it’s own” and "reported errors" of related dep. / sec ECUs in it’s event memory |
| RBM cycle | OBD Term: General Nominator / Rate-based monitoring - driving cycle (OBD Term) |
| Readiness | The readiness refers to the tested bits TestNotCompletedSinceLastClear (bit 4) and TestNotCompleteThisOperationCycle (bit 6) of the UDS status byte. |
| Triggered to NvM | The Dem module shall use the API NvM_WriteBlock of the NVRAMManager [5], if there is the necessity to trigger the storage of data between Dem_Init and Dem_Shutdown. Furthermore the Dem module shall wait for positive response of NvM_WriteBlock if request has been accepted. |
| UDS status bit 0 | testFailed bit of the UDS status byte. Indicates the result of the most recently performed test. |
| UDS status bit 1 | testFailedThisOperationCycle bit of the UDS status byte. Indicates whether or not a diagnostic test has reported a testFailed result at any time during the current operation cycle. |
| UDS status bit 2 | pendingDTC bit of the UDS status byte. Indicates whether or not a diagnostic test has reported a testFailed result at any time during the current or last completed operation cycle. |
| UDS status bit 3 | confirmedDTC bit of the UDS status byte. Indicates whether a malfunction was detected enough times to warrant that the DTC is desired to be stored in long-term memory. |
| UDS status bit 4 | testNotCompletedSinceLastClear bit of the UDS status byte. Indicates whether a DTC test has ever run and completed since the last time a call was made to ClearDiagnosticInformation. |
| UDS status bit 5 | testFailedSinceLastClear bit of the UDS status byte. Indicates whether a DTC test has completed with a failed result since the last time a call was made to ClearDiagnosticInformation. |
| UDS status bit 6 | testNotCompletedThisOperationCycle bit of the UDS status byte. Indicates whether a DTC test has ever run and completed during the current operation cycle. |
| UDS status bit 7 | warningIndicatorRequested bit of the UDS status byte. Report the status of any warning indicators associated with a particular DTC. |
| UDS status byte | Status byte as defined in ISO 14229-1 [1], based on DTC level. |
| API | Application Programming Interface |
| BSW | Basic Software |
| CDD | Complex Device Driver |
| CRC | Cyclic Redundancy Check |
| Dcm | Diagnostic Communication Manager |
| Dem | Diagnostic Event Manager |
| Det | Default Error Tracer |
| DID | Data Identifier |
| DTC | Diagnostic Trouble Code |
| DTR | Diagnostic Test Result |
| DYC | OBD Term: Driving Cycle (OBD Term) |
| ECU | Electronic Control Unit |
| EcuM | Electronic Control Unit Manager |
| FDC | Fault Detection Counter |
| Fim | Function Inhibition Manager |
| FMI | Failure Mode Indicator (SAE J1939) |
| FT | B Failure Type Byte |
| HW | Hardware |
| ID | Identification/Identifier |
| ISO | International Standardization Organization |
| IUMPR | In Use Monitoring Performance Ratio (OBD Term) |
| J1939Dcm | SAEJ1939 Diagnostic Communication Manager |
| MIL | Malfunction Indicator Light (SAE J1979) or Lamp (SAE J1939) |
| NVRAM | Non volatile RAM |
| OBD | On-Board-Diagnostics |
| OC | Occurrence Count (SAE J1939) |
| OEM | Original Equipment Manufacturer (Automotive Manufacturer) |
| OS | Operating System |
| PID | Parameter Identification (SAE J1587 or SAE J1979) |
| PTO | Power Take Off |
| RAM | Random Access Memory |
| ROM | Read-only Memory |
| RTE | Runtime Environment |
| SPN | Suspect Parameter Number (SAE J1939) |
| SSCP | synchronous server call point |
| SW | Software |
| SW-C | Software Component |
| UDS | Unified Diagnostic Services |
| VOBD | Vehicle On-Board-Diagnostic |
| WUC | OBD Term: Warm up cycle (OBD Term) |
| WIR | Warning Indicator Request |
| WWH-OBD | World Wide Harmonized On-Board-Diagnostic |
英日
日本語は仮訳
T.B.D.
参考(reference)
[1] Unified diagnostic services (UDS) – Part 1: Specification and requirements (Release 2006-12)
http://www.iso.org
[2] Unified diagnostic services (UDS) – Part 1: Specification and requirements (Release 2013-03)
http://www.iso.org
[3] Road vehicles – Implementation of World-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements – Part 1: General information and use case definition
http://www.iso.org
[4] Glossary, AUTOSAR_TR_Glossary
https://www.autosar.org/fileadmin/standards/foundation/22-11/AUTOSAR_TR_Glossary.pdf
[5] Specification of NVRAM Manager
AUTOSAR_SWS_NVRAMManager
[6] General Specification of Basic Software Modules
AUTOSAR_SWS_BSWGeneral
[7] Specification of a Diagnostic Communication Manager for SAE J1939
AUTOSAR_SWS_SAEJ1939DiagnosticCommunicationManager
[8] Requirements on Function Inhibition Manager
AUTOSAR_SRS_FunctionInhibitionManager
[9] Specification of Diagnostic Communication Manager
AUTOSAR_SWS_DiagnosticCommunicationManager
[10] Requirements on Diagnostics
AUTOSAR_RS_Diagnostics
[11] General Requirements on Basic Software Modules
AUTOSAR_SRS_BSWGeneral
[12] Road vehicles – Communication between vehicle and external equipment for emission-related diagnostic – Part 5: Emission-related diagnostic services. http://www.iso.org
[13] SAE J2012-DA Digital
[14] SAE J1939-73 Application Layer – Diagnostics
[15] Road vehicles – Interchange of digital information on electrical connections between towing and towed vehicles – Part 4: Diagnostic communication http://www.iso.org
[16] ISO 17356-3: Road vehicles – Open interface for embedded automotive applications – Part 3: OSEK/VDX Operating System (OS)
[17] SAE J1979
[18] SAE J1979-DA Digital Annex of E/E Diagnostic Test Modes
[19] Title 13, California Code Regulations, Section 1971.1, On-Board Diagnostic System Requirements for 2013 and Subsequent Model-Year Heavy-Duty Engines (HD OBD)
[20] Title 13, California Code Regulations, Section 1968.2, Malfunction and Diagnostic System Requirements for 2004 and Subsequent Model-Year Passenger Cars,
Light-Duty Trucks, and Medium-Duty Vehicles and Engines (OBD II) (Biennial Review MY08-11)
http://www.arb.ca.gov/regact/obdii06/19682clean.pdf
[21] Road vehicles – Implementation of World-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements – Part 3: Common message dictionary http://www.iso.org
[22] Software Component Template
AUTOSAR_TPS_SoftwareComponentTemplate
[23] Diagnostic Extract Template
AUTOSAR_TPS_DiagnosticExtractTemplate
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