초록 ▼

A data driven, multi-dimensional diagnostic method that combines vehicle system test data, vehicle attributes, symptoms, and extrinsic data to produce vehicle system diagnostics. Data are combined according to predetermined equations to yield intermediate diagnostic results. Intermediate diagnostic

A data driven, multi-dimensional diagnostic method that combines vehicle system test data, vehicle attributes, symptoms, and extrinsic data to produce vehicle system diagnostics. Data are combined according to predetermined equations to yield intermediate diagnostic results. Intermediate diagnostic results are combined recursively according to fixed expressions to produce final diagnostic results relating to the state of the vehicle system under diagnosis. Fixed expressions may be algebraic, Boolean, fuzzy logic, statistical, or relate to an expert system.

대표청구항 ▼

A vehicle fault diagnosis system comprising: a diagnostics control module capable of issuing diagnostic commands; a vehicle system testing module, coupled to the diagnostic control module and configured to initiate diagnostic tests upon the vehicle in response to test commands received by the vehicl

A vehicle fault diagnosis system comprising: a diagnostics control module capable of issuing diagnostic commands; a vehicle system testing module, coupled to the diagnostic control module and configured to initiate diagnostic tests upon the vehicle in response to test commands received by the vehicle system testing module, the vehicle system testing module producing vehicle test results and test completion status indicators; at least one data source, the data sources together capable of providing vehicle attributes and symptoms: and an evaluation module, coupled to the diagnostic control module, the vehicle system testing module and each data source, the evaluation module capable of requesting a first set of information from each data source and the vehicle system testing module in response to a diagnostic command, the evaluation module requesting all necessary information that is particular to determining at least an initial root fault before evaluating any information to determine at least an initial root fault, wherein a root fault is the smallest faulty component or process identifiable by the evaluation module.