Fault diagnostic device and method

US6195763A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Rudi Mayer · Lambach, DE
• Holger Bellmann · Ludwigsburg, DE
• Gudrun Menrad · Stuttgart, DE
• Dieter-Andreas Dambach · Ditzingen, DE
• Jurgen Wolf · Kriftel, DE
• Rainer Frank · Sachsenheim, DE
• Hans Hillner · Ludwigsburg, DE
• Juergen Schiemann · Markgröningen, DE
• Georg Mallebrein · Stuttgart, DE

Key dates

• Filing date: Jun 1, 1998
• Grant date: Feb 27, 2001
• Expiry date: Jun 1, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fault diagnostic device for monitoring and detecting faults in technical functions, in particular in technical functions of a motor vehicle, includes a plurality of monitoring devices for monitoring technical functions, whether they have a fault or not. The fault diagnostic device also includes a storage device for storing (data concerning) direct mutual dependencies of the functions to be monitored, in the form of a matrix representation in the logical YES/NO form. Furthermore, the fault diagnostic device includes a processing device for determining the capacity for validation of faults in corresponding technical functions to be detected in the monitoring, in view of the matrix representation; for controlling the monitoring devices for carrying out the monitoring activities; and, assuming the capacity for validation, for validating the faults to be detected in the monitoring.