A method of and system for performing diagnostics in a hierarchical diagnostics electrical architecture of a vehicle, hosted by a plurality of on-board computing devices. The hierarchical diagnostics electrical architecture comprises: a component diagnostic layer having a plurality of electronic control units (ECUs) 211 each comprising a diagnostics server module or testing module 212; and at least one supervisory diagnostic layer, 22, 23. The method comprises receiving into the diagnostics server modules sensor output data from on-board vehicle sensors; performing, by the diagnostics server modules, diagnostic tasks based on received sensor output data to generate component-level diagnostic notifications, such as trouble codes (DTCs) from detect faults. The component-level diagnostic notifications are received into the supervisory layer from each of a group of the plurality of ECUs and aggregated to generate a supervisory-level diagnostic notification. The supervisory layer may have two separate layers: a system, zone or domain layer 22 and a higher vehicle diagnostic layer 23. The system layer can comprise application services 221, with diagnostics being performed at the service level. The aggregation of component-level notifications can include triaging the notifications. Diagnostic capabilities are localised in a vehicle. The supervisory-level diagnostic notification can be transmitted to an off-board tester.


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    Title :

    Layered electrical architecture for vehicle diagnostics


    Contributors:

    Publication date :

    2021-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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