Abstract: A method of performing diagnostics in a hierarchical diagnostics electrical architecture of a vehicle, the vehicle comprising a plurality of on-board computing devices for hosting the hierarchical diagnostics electrical architecture. The hierarchical diagnostics electrical architecture comprising: a component diagnostic layer having a plurality of electronic control units each comprising a diagnostics server module; and at least one supervisory diagnostic layer.

Abstract: The present disclosure relates to a diagnostics system (2) for a vehicle (1). The diagnostics system (2) comprises a plurality of application functions (10) for controlling functions of the vehicle, a plurality of I/O interface modules (30) hosting drivers for I/O devices associated with the application functions (10), and a vehicle diagnostics manager or VDM (20). The I/O interface modules (30) are configured to transmit output signals pertaining to operation of their associated I/O devices to the application functions (10) together with a signal tag identifying the I/O interface module that generated the output signal. Each I/O interface module (30) is also configured to run physical fault monitors in order to detect physical faults for its associated I/O devices, and to maintain a fault record of detected physical faults. Each application function (10) is configured to run strategic fault monitors in order to detect strategic faults for its associated vehicle function.

Abstract: The present invention relates to a diagnostics system for a vehicle. The diagnostics system comprises a plurality of application functions for controlling functions of the vehicle, a plurality of I/O interface modules hosting drivers for I/O devices associated with the application functions, and an off-board remote diagnostics manager. Each I/O interface module is configured to run physical fault monitors in order to detect physical faults for its associated I/O devices, and to maintain an on-board record of detected physical faults. Each application function is configured to run strategic fault monitors in order to detect strategic faults for its associated vehicle function, and to maintain an on-board record of detected strategic faults.

Abstract: A method of performing diagnostics in a hierarchical diagnostics electrical architecture of a vehicle, the vehicle comprising a plurality of on-board computing devices for hosting the hierarchical diagnostics electrical architecture. The hierarchical diagnostics electrical architecture comprising: a component diagnostic layer having a plurality of electronic control units each comprising a diagnostics server module; and at least one supervisory diagnostic layer.

Abstract: A method of performing diagnostics in a hierarchical diagnostics electrical architecture of a vehicle, the vehicle comprising a plurality of on-board computing devices for hosting the hierarchical diagnostics electrical architecture. The hierarchical diagnostics electrical architecture comprising: a component diagnostic layer having a plurality of electronic control units each comprising a diagnostics server module; and at least one supervisory diagnostic layer.

Abstract: A method of providing diagnostics communication in a diagnostics electrical architecture of a vehicle, the vehicle comprising a plurality of on-board computing devices for hosting the diagnostics electrical architecture. The diagnostics electrical architecture comprises: one or more electronic control units each comprising a diagnostics server module; a service interface module arranged to allow diagnostic communication between the one or more electronic control units and a network service bus of the vehicle; and a diagnostic services registry module.

Abstract: The present disclosure relates to a distributed diagnostics architecture for a vehicle. The diagnostics architecture comprises a plurality of application functions hosted on a central compute platform (CCP) of the vehicle, a plurality of remote input/output concentrator modules (RIOs) provided at different locations within the vehicle, and a vehicle diagnostics manager (VDM). The application functions are configured to control vehicle functions. The application functions are further configured to run diagnostic fault monitors pertaining to strategic or system-level faults for their associated vehicle functions, and to transmit strategic fault data related to their associated vehicle functions to the VDM. The RIO are connected to I/O devices of the vehicle. The RIOs are configured to run diagnostic fault monitors pertaining to physical or component-level faults for their associated I/O devices, and to transmit physical fault data related to their associated I/O devices to the VDM.

Abstract: A method of performing diagnostics in a hierarchical diagnostics electrical architecture of a vehicle, the vehicle comprising a plurality of on-board computing devices for hosting the hierarchical diagnostics electrical architecture. The hierarchical diagnostics electrical architecture comprising: a component diagnostic layer having a plurality of electronic control units each comprising a diagnostics server module; and at least one supervisory diagnostic layer.

Abstract: The present disclosure relates to a control system (2) for a vehicle. The control system is configured to receive a request to initiate a diagnostic conversation, and attempt to initiate the requested diagnostic conversation while the vehicle is in a sleep state. The control system is further configured to determine one or more target participants that are required for participation in a requested diagnostic conversation, to determine an on-board energy status of the vehicle, and to energise the target participants without energising the entire vehicle and initiate the requested diagnostic conversation in dependence on the on-board energy status of the vehicle being sufficient to conduct the requested diagnostic conversation.