摘要:
A statistical waveform drawing routine includes forming an image, determining discrete points of the image, forming count totals of the number of discrete points of the image in a sweep of the discrete points in a first direction, and determining a statistical value according to the count totals of the discrete points.
摘要:
A vehicle state tracker tracks the state of a vehicle during a diagnostic test sequence to eliminate redundant steps between diagnostic procedures. The vehicle state tracker maintains a list of preconditions required for each diagnostic procedure, reads a current vehicle state from a memory register and verifies the current setting of the vehicle state corresponding to a specific precondition. If the precondition is required and the current setting is not valid, the state tracker further formats a test preparation step corresponding to the precondition for display to instruct a vehicle technician to satisfy the precondition. Otherwise, if the precondition is not required and the corresponding setting is valid, the state tracker formats an instruction to reverse the corresponding vehicle condition. The state tracker additionally receives feedback indicating when a precondition has been satisfied or the corresponding vehicle condition has been reversed, and updates the vehicle state in memory.
摘要:
A system and method for alerting interested parties of component failure are provided. The system made up of a diagnostic tool for identifying a failed component, a reporting device for creating alerts, a routing device to ensure interested parties receive the proper alerts, and a memory to store information for associating parties with the alerts. Information is gathered to create an alert used to notify interested parties of instances of component failures. The alerts are routed to parties known to have an interest in the failure of the component. The system and method may provide information that allows for better planning and design of parts, greater availability to ensure a sufficient inventory of parts, more accurate diagnosis of issues, and more effective preventative maintenance.
摘要:
A technique and apparatus of displaying a vehicle's information on a display device is provided and include measuring a set of diagnostic and state values of the vehicle, comparing the set of measured values with a set of related predetermined values, the set of predetermined values being within a preset range for operation of the vehicle, displaying on a video image a graphical depiction of the present measured value, and displaying on the same video image, a graphical depiction of the measured set of values in comparison to the related predetermined set of values, with the comparison changing color of a certain portion of the graphical depiction.
摘要:
A vehicle state tracker tracks the state of a vehicle during a diagnostic test sequence to eliminate redundant steps between diagnostic procedures. The vehicle state tracker maintains a list of preconditions required for each diagnostic procedure, reads a current vehicle state from a memory register and verifies the current setting of the vehicle state corresponding to a specific precondition. If the precondition is required and the current setting is not valid, the state tracker further formats a test preparation step corresponding to the precondition for display to instruct a vehicle technician to satisfy the precondition. Otherwise, if the precondition is not required and the corresponding setting is valid, the state tracker formats an instruction to reverse the corresponding vehicle condition. The state tracker additionally receives feedback indicating when a precondition has been satisfied or the corresponding vehicle condition has been reversed, and updates the vehicle state in memory.
摘要:
A statistical waveform drawing routine includes forming an image, determining discrete points of the image, forming count totals of the number of discrete points of the image in a sweep of the discrete points in a first direction, and determining a statistical value according to the count totals of the discrete points.
摘要:
A vehicle diagnostic data collector/analyzer compiles historical vehicle diagnostic data, including measured operating parameters from a number of different vehicles operating under a variety of normal vehicle operating conditions and vehicle component failure conditions, and performs statistical analyses on various vehicle type/operating condition combinations to establish operating parameter ranges corresponding to normal operating conditions and various failure conditions. The diagnostic data collector/analyzer also measures real-time operating parameters on specific test-subject vehicles and evaluates similarities and differences between the measured operating parameters and the established ranges, and correlates the test data with known operating conditions in order to diagnose potential failure modes of vehicle components.
摘要:
An interactive diagnostic schematic generator illustrates diagnostic test procedures for diagnosing failure modes of a vehicle. The schematic generator reads a schematic data file such as a wiring diagram from a computer memory, indicates a test subject in the schematic or illustrates a location where test equipment is to be connected, and formats the schematic for display on a display device. The schematic generator also receives feedback from a vehicle onboard computer, test equipment or user input indicating that the action has been performed, and removes the indication of the test subject in the schematic. The schematic generator further marks the test subject to indicate that the action has been performed with a marking style that is visually distinct from the indicating style, optionally indicating that the result has validated or invalidated the test subject.
摘要:
A diagnostic tool and a computer-implemented method for generating testing and diagnosis procedures for vehicle diagnosis include determining if a first procedure remains to be performed, if a first procedure remains to be performed, then determining whether: there is a second procedure dependent on the first procedure, or the first procedure can run in parallel to the second procedure, if there is a second procedure dependent on the first procedure, then performing the first procedure, if the first procedure can run in parallel to the second procedure, then performing the first procedure, and determining if the second procedure remains to be performed.
摘要:
A dynamic diagnostic plan generator arranges diagnostic test procedures related to a vehicle symptom or operational problem in a sequence based on a probabilistic Failure Mode and Effects Analysis (FMEA). The diagnostic plan generator also tracks a vehicle state, and provides instructions for test preparation steps and instructions for performing the diagnostic test procedures. The plan generator further generates schematic illustrations of the diagnostic test procedures, and creates a diagnostic data structure containing information related to the diagnostic test procedures. In addition, the diagnostic plan generator sends and receives information regarding actual failure mode occurrences, for example, to and from a central database. Furthermore, the diagnostic plan generator facilitates the creation of failure mode tests by an expert diagnostics author.