Abstract: A method for providing open access to vehicle data is disclosed. From a vehicle under service, the method receives vehicle-diagnostic data in a manufacturer-specified format at a vehicle-service tool, and converts the vehicle data in the manufacturer-specified format into vehicle data in an open format.

Abstract: A system and method for identifying and substituting procedures in an OEM diagnostic tree with alternate procedures analyzed by highly experienced technicians to eliminate the use of potentially unavailable equipment and make the diagnostic tree more accessible to a greater number of technicians. The system includes a diagnostic tree editor and a library.

Abstract: A system for test procedures using pictures for a vehicle diagnostic system that includes a processor, a storage device in communication with the processor, a diagnostic routine that is executed by the processor, and a display device also coupled to the processor. The storage device may house a database that includes a library of vehicle information items. These vehicle information items include text items that may relate to several items, for example: 1) a fault that may be experienced by a vehicle under diagnosis; 2) a test that may be performed on the vehicle for the purpose of diagnosing the causes of the faults; or 3) a solution that may be used to correct the faults. Further, the vehicle information items may also include a library of picture items that correspond to the text items.

Abstract: A method for providing open access to vehicle data is disclosed From a vehicle under service, the method receives vehicle-diagnostic data in a manufacturer-specified format at a vehicle-service tool, and converts the vehicle data in the manufacturer-specified format into vehicle data in an open format.

Abstract: An integrated diagnostic system includes interface connectors to connect to a plurality of instruments/instrument modules, including engine analyzers, gas analyzers, oscilloscopes, scanners, network connections, and/or other desired peripheral modules. These modules advantageously interface to the system through diverse parts, connections and with various protocols. The system may connect to a network, wired or wireless, for interfacing among processors and modules, and with an internet connection for interaction with remote resources including databases and expert systems.

Abstract: Configurable methods and systems allowing a user remote to a vehicle to designate the types of faults or information that an on-board diagnostic system of the vehicle should monitor and report.

Abstract: A method for test procedures using pictures for a vehicle diagnostic system that includes providing text items, examining text items, accessing a database of picture items corresponding to text items, correlating picture items with at least a portion of the text items, replacing the at least a portion of the text items with the corresponding picture items, and displaying an image including at least one picture item.

Abstract: An expert diagnostic service system using a distributed architecture for generating expert diagnostic suggestions based on input received from a plurality of diagnostic systems. The expert service system collects data related to effective diagnostic results, such as effective fixes, corresponding to various symptoms/faults from a plurality of diagnostic systems via a data transmission network, and accumulates the number of each effective fix corresponding to each of the various symptoms. The expert service system then assigns at least one effective fix to one of the various symptoms based on a result of the accumulating step, such as the rank of the accumulated number of each fix. The expert service system uses the assigned fix corresponding to a symptom as expert suggestions.

Abstract: A method is provided for updating a fault tree used in diagnosis of a condition of a machine. The fault tree is a sequence of test modules. Each of the test modules is assigned a confidence score indicating the likelihood that the test module will lead to a diagnosis. The method comprising the steps of obtaining service data from a plurality of service occasions for like machines, revising the confidence score for at least one test module in the fault tree based on the service data; and revising the sequence of the test modules in the fault tree based on the revised confidence score(s). The sequence is revised such that the most likely modules to result in a diagnosis are listed first, and the least likely ones are listed last. The re-ordering is based on feedback from actual service instances in the field, and thus is more likely to reflect real-world conditions. The result is that service technicians using the revised fault trees work more efficiently, at least on a statistical basis.

Abstract: A method for test procedures using pictures for a vehicle diagnostic system that includes providing text items, examining text items, accessing a database of picture items corresponding to text items, correlating picture items with at least a portion of the text items, replacing the at least a portion of the text items with the corresponding picture items, and displaying an image including at least one picture item.

Abstract: A display device can display a diagnostic procedure used in diagnosing a problem with a vehicle. One or more steps in the diagnostic process may be assigned a level, such as a skill level. A user of the display device, such as a vehicle repair technician, can specify one of the possible levels. The user's selected level can then be used as a basis for altering how the display device displays the diagnostic procedure. For example, in one embodiment, the display device can omit from the displayed diagnostic procedure those steps or sub-steps that have a level that is lower than the user's selected level.

Abstract: A method, apparatus, and system are provided for implementing vehicle identification. Characteristic data is obtained from at least one sensing device, the characteristic data being reflective of at least one characteristic of a vehicle. The characteristic data is compared to a pattern in a pattern-recognition database, the pattern being associated with identification data corresponding to a combination of vehicle characteristics. When the characteristic data substantially matches the pattern, the identification data is received. Responsive to receiving the identification data, an identifier is created based at least in part on the identification data. The created identifier reflects that the vehicle has the combination of vehicle characteristics.

Abstract: A system for test procedures using pictures for a vehicle diagnostic system that includes a processor, a storage device in communication with the processor, a diagnostic routine that is executed by the processor, and a display device also coupled to the processor. The storage device may house a database that includes a library of vehicle information items. These vehicle information items include text items that may relate to several items, for example: 1) a fault that may be experienced by a vehicle under diagnosis; 2) a test that may be performed on the vehicle for the purpose of diagnosing the causes of the faults; or 3) a solution that may be used to correct the faults. Further, the vehicle information items may also include a library of picture items that correspond to the text items.

Abstract: A method and system diagnosing vehicle faults using a diagnostic tool capable of communicating with a remote host. Diagnostic data, vehicle data, and a diagnostic routine are stored in data storage of a diagnostic tool. The diagnostic data defines vehicle fault descriptions, corresponding vehicle fault symptoms, and corresponding repair instructions, and the vehicle data defines vehicle operation information. The diagnostic tool is capable of communicating with a remote host that can diagnose vehicle faults using the vehicle data, and send diagnosis information, including a diagnosis and repair instructions to the diagnostic tool. In response to receiving diagnosis information from the remote host, the diagnostic tool displays the information to a user. Advantageously, the system and method can allow the diagnostic tool access to additional computing power and external databases for diagnosing vehicle faults.

Abstract: A system and method for improving diagnostic aids such as fault trees and repair manuals uses feedback in the form of repair data from a distributed base of data collection devices used by technicians. The data is processed by a data analysis computing unit. The computing unit determines proposed modifications to the diagnostic aid based on the data. A diagnostic tool editor is used by a subject matter expert to review the proposed modifications and either accept, reject, or modify the diagnostic aid. The modified aids are then made available to the service technicians in the field, improving their efficiency and ability to more quickly diagnose machine conditions. The disclosure is applicable to machines generally, including for example automobiles or components thereof, such as engines and transmissions.

Abstract: A method is provided for updating a fault tree used in diagnosis of a condition of a machine. The fault tree is a sequence of test modules. Each of the test modules is assigned a confidence score indicating the likelihood that the test module will lead to a diagnosis. The method comprising the steps of obtaining service data from a plurality of service occasions for like machines, revising the confidence score for at least one test module in the fault tree based on the service data; and revising the sequence of the test modules in the fault tree based on the revised confidence score(s). The sequence is revised such that the most likely modules to result in a diagnosis are listed first, and the least likely ones are listed last. The re-ordering is based on feedback from actual service instances in the field, and thus is more likely to reflect real-world conditions. The result is that service technicians using the revised fault trees work more efficiently, at least on a statistical basis.

Abstract: Engine cylinder contribution analysis is provided. An engine cylinder contribution tester includes a displacement measurement device and a signal analyzer. The displacement measurement device detects engine block movements or displacement relative to a fixed position caused by a poorly contributing cylinder. The displacement measurement device provides a displacement signal to the signal analyzer. The signal analyzer includes a cylinder contribution module for evaluating the displacement signal. If a particular cylinder is contributing less than the average of the other cylinders, the displacement signal indicates engine block movement associated with a lack of contribution from that cylinder.

Abstract: An integrated diagnostic system includes interface connectors to connect to a plurality of instruments/instrument modules, including engine analyzers, gas analyzers, oscilloscopes, scanners, network connections, and/or other desired peripheral modules. These modules advantageously interface to the system through diverse parts, connections and with various protocols. The system may connect to a network, wired or wireless, for interfacing among processors and modules, and with an internet connection for interaction with remote resources including databases and expert systems.

Abstract: Engine cylinder contribution analysis is provided. An engine cylinder contribution tester includes a displacement measurement device and a signal analyzer. The displacement measurement device detects engine block movements or displacement relative to a fixed position caused by a poorly contributing cylinder. The displacement measurement device provides a displacement signal to the signal analyzer. The signal analyzer includes a cylinder contribution module for evaluating the displacement signal. If a particular cylinder is contributing less than the average of the other cylinders, the displacement signal indicates engine block movement associated with a lack of contribution from that cylinder.

Abstract: An expert diagnostic service system using a distributed architecture for generating expert diagnostic suggestions based on input received from a plurality of diagnostic systems. The expert service system collects data related to effective diagnostic results, such as effective fixes, corresponding to various symptoms/faults from a plurality of diagnostic systems via a data transmission network, and accumulates the number of each effective fix corresponding to each of the various symptoms. The expert service system then assigns at least one effective fix to one of the various symptoms based on a result of the accumulating step, such as the rank of the accumulated number of each fix. The expert service system uses the assigned fix corresponding to a symptom as expert suggestions.