Model-based On-Board Diagnosis and Tools for the Developer of On-Board Systems -VMBD and IDD: Two Projects of the European Car Industries

The growing importance of on-board diagnosis for automobiles demands for new diagnostic methodologies and techniques and for a close integration of diagnostic tasks in the entire design process. This report describes work carried out within two European projects. In the "Vehicle Model based Diagnosis" (VMBD) project, demonstrator vehicles with built-in faults provided a serious challenge to model-based diagnosis techniques and a real-life test-bed for their evaluation. One of the guiding applications within VMBD was model-based on-board diagnosis of faults in a turbo diesel engine system with a focus on potential origins of increased carbon emissions. The second, still on-going, project, „Integrated Design Process for onboard Diagnosis„ (IDD) developed a model of a new design process which allows for a better integration of diagnosis related tasks, such as diagnosability analysis, failure-modes-and-effects analysis (FMEA), on-board diagnosis design, in the overall design process of mechatronic subsystems.