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WARRANTY COST ESTIMATION BASED ON COMPUTING A PROJECTED NUMBER OF FAILURES OF PRODUCTS

  • US 20160019567A1
  • Filed: 07/14/2015
  • Published: 01/21/2016
  • Est. Priority Date: 07/15/2014
  • Status: Abandoned Application
First Claim
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1. A method for computing a projected number of failures of products having multiple parts, wherein the method comprises:

  • determining, by a processor, part-failure data, wherein the part-failure data is indicative of a number of cycles at which each part fails in and after a first predefined time period;

    determining diagnosed trouble code (DTC) occurrence data from sensor data of the products, wherein the DTC occurrence data is indicative of a number of cycles at which each DTC associated with each part occurs for first time in the first predefined time period, and wherein functioning of each of the multiple parts is diagnosed using DTCs associated with a respective part, and wherein a DTC of the DTCs is associated for a trouble symptom for a part of the products;

    determining DTC observance data from service records data of the products, wherein the DTC observance data is indicative of a number of cycles at which each DTC associated with each part is observed for first time in the first predefined time period;

    identifying, by the processor, dependency parameters between the part-failure data, the DTC occurrence data and the DTC observance data, based on Bayesian Network, wherein the Bayesian Network represents probabilistic relationships between the part-failure data, the DTC occurrence data and the DTC observance data, and wherein the dependency parameters are associated with the probabilistic relationships; and

    computing, by the processor, the projected number of failures of the products in a second predefined time period based on the dependency parameters, and wherein the second predefined time period is indicative of a time period after the first predefined time period.

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