| 摘要 |
The invention relates to a method and a system for diagnosis of faults in distributed systems, preferably but not exclusively for distributed electrical systems in vehicles. The distributed system is systematically documented in its entirety in a database (61) as a number of mutually autonomous user functions (70a-70d), each of which entails a functionality of value perceivable by the user. These user functions are documented in a chain of subfunctions, whereby several subfunctions can occur is several user functions, which user functions are then termed overlapping function domains. In accordance with the invention this documentation is used for troubleshooting to exclude non-defective subfunctions from further troubleshooting in defective user functions. By comparing defective user functions with non-defective user functions, systematic and preferably computer-aided troubleshooting can rapidly be implemented. |
