WARRANTY COST ESTIMATION BASED ON COMPUTING A PROJECTED NUMBER OF FAILURES OF PRODUCTS
First Claim
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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Abstract
Estimating warranty cost of products having multiple parts is described. In an implementation, part-failure data indicative of number of cycles at which each part fails in and after a first predefined time period is determined Sensor data and service records data are obtained to determine DTC occurrence data and DTC observance data. The DTC occurrence data and the DTC observance data are indicative of number of cycles at which each DTC associated with each part occurs and is observed for first time in the first predefined time period, respectively. Dependency parameters between the part-failure data, the DTC occurrence data and the DTC observance data are identified based on Bayesian Network that represents probabilistic relationships between the part-failure data, the DTC occurrence data and the DTC observance data. Number of failures of products in a second predefined time period is computed based on the dependency parameters for estimating the warranty cost.
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Citations
18 Claims
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1. A method for computing a projected number of failures of products having multiple parts, wherein the method comprises:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for computing a projected number of failures of products having multiple parts, wherein the system comprises:
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a processor; a memory coupled to the processor , wherein the processor executes computer-readable instructions stored in the memory to; determine part-failure data, wherein the part-failure data is indicative of a number of cycles at which a part of a product fails in a first predefined time period; determine 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 a DTC associated with a part of the products occurs for a first time in and after 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 the DTC is associated for a trouble symptom for the part of the product; and determine DTC observance data from service records data of the products, wherein the DTC observance data is indicative of a number of cycles at which a DTC associated with a part of the products is observed for a first time in the first predefined time period; and identify dependency parameters between the part-failure data, the DTC occurrence data and the DTC observance databased on a 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 compute a number of projected failures of the products in a second predefined time period based on the dependency parameters, wherein the second predefined time period is indicative of a time period after the first predefined time period. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium having embodied thereon a computer program for executing a method for computing a projected number of failures of products having multiple parts, the method comprising:
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determining 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; determine 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 the DTC is associated for a trouble symptom for a part of the one or more products; determine 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 dependency parameters between the part-failure data, the DTC occurrence data and the DTC observance databased on Bayesian Network that 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, a number of projected failures of the products in a second predefined time period based on the dependency parameters, wherein the second predefined time period is indicative of time after the first predefined time period. - View Dependent Claims (18)
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Specification