System and method for vehicle diagnostics and prognostics

• US 20060271255A1
• Filed: 12/28/2005
• Published: 11/30/2006
• Est. Priority Date: 12/30/2004
• Status: Abandoned Application

• Current Assignee: Teradyne Incorporated
• Original Assignee: Teradyne Incorporated
• Inventors: Legate, Ian, Stott, David
• Application Number:
  US11/320,006
• Publication Number:
  US 20060271255A1
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: G05B 23/0232 based on qualitative trend analysis, e.g. system evolution
• CPC Class Codes: G05B 23/0283 Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL] preventive maintenance, i.e. planning maintenance according to the available resources without monitoring the system G06Q10/06

Abstract

A vehicle diagnostic and prognostic system and method is disclosed. The preferred system operates from a centralized processor-based data network system and also includes a vehicle interface architecture subsystem, a vehicle configuration information subsystem, an applications engine, and a presentation subsystem. More specifically, the vehicle interface architecture subsystem is adapted for retrieving operational data and identification data from a vehicle and the vehicle configuration information subsystem is adapted for providing vehicle configuration data, vehicle variant data and/or driving style related data to the diagnostic and prognostic system. Both of these subsystems are also coupled to the applications engine that is adapted for analysing the various data, identifying trends and making an overall diagnosis or prognosis. The vehicle diagnostic and prognostic information presentation subsystem is also coupled to the applications engine and adapted for graphical presentation of information to the repair technician or other interested parties.

Claims

1. A vehicle diagnostic and prognostic system comprising:

a vehicle interface architecture subsystem adapted for interfacing with a vehicle to collect a first subset of data from a vehicle;

a vehicle configuration information subsystem adapted for providing a second set of data about said vehicle from a plurality of external data sources;

an applications engine in operative communication with the vehicle interface architecture subsystem and the vehicle configuration information subsystem, the applications engine adapted for analysing said first subset of data together with the second subset of data and preparing an output information; and

a presentation subsystem operatively coupled to the applications engine and adapted for presentation of said output information.

2. The vehicle diagnostic and prognostic system of claim 1 wherein said output information includes failure analysis information and trend analysis information for said vehicle

3. The vehicle diagnostic and prognostic system of claim 1 wherein said output information includes failure analysis information and case history analysis information for said vehicle.

4. The vehicle diagnostic and prognostic system of claim 1 wherein said vehicle interface architecture subsystem further comprises a plurality of data driven software interfaces between the first subset of data and one or more diagnostic software applications.

5. The vehicle diagnostic and prognostic system of claim 1 wherein said vehicle interface architecture subsystem further comprises vehicle application libraries that contain specific information about said vehicle.

6. The vehicle diagnostic and prognostic system of claim 1 wherein said vehicle interface architecture subsystem further comprises application analysis elements adapted for creation of diagnostic and prognostic software applications.

7. The vehicle diagnostic and prognostic system of claim 1 wherein said second set of data further comprises vehicle configuration data.

8. The vehicle diagnostic and prognostic system of claim 1 wherein said second set of data further comprises driving style data.

9. The vehicle diagnostic and prognostic system of claim 1 wherein said second set of data further comprises vehicle case history data.

10. A method of vehicle diagnostics and prognostics comprising the steps of:

defining a plurality of data inputs and data factors to be monitored for a vehicle;

collecting the defined data inputs and data factors and a case history for said vehicle;

determining the weighting factors of said data inputs and data factors on a set of diagnostic and prognostic results;

analyzing the data inputs and data factors based on said weighting factors to create the initial set of diagnostic and prognostic results;

further analyzing the data inputs and data factors to develop trend information related to the vehicle using the data inputs and data factors;

assessing the vehicle case history to predict likely failures based on historical analysis of data inputs and data factors; and

preparing an overall diagnostic and prognostic output based on said initial set of diagnostic and prognostic results, trend information, and historical analysis.

11. The method of claim 10 wherein the data inputs and data factors include are selected from the group consisting of vehicle identification and operational data;

driving style data;

vehicle configuration and variant data;

vehicle warranty data, and service operations data.

12. The method of claim 11 further comprising the step of defining a vehicle baseline upon which the collected data inputs and data factors shall be compared, said baseline further including one or more of defined thresholds, permissible ranges, or error conditions associated with such data inputs and data factors.

13. A vehicle diagnostic and prognostic system comprising:

a data processing and control subsystem;

a vehicle interface architecture subsystem adapted for retrieving operational data and identification data from vehicles and further adapted for developing diagnostic and prognostic software applications for said vehicles.

a vehicle configuration information subsystem in operative communication with the data processing and control subsystem, the vehicle configuration information subsystem adapted for providing vehicle configuration data and driving style data to the data processing and control subsystem;

an applications engine in operative communication with the vehicle interface architecture subsystem and the data processing and control subsystem, the applications engine adapted for analysing data from vehicles and the vehicle configuration information subsystem using diagnostic and prognostic software applications for said vehicles and preparing output information;

an information presentation subsystem operatively coupled to the applications engine and the data processing and control subsystem and adapted for presentation of said output information.