Digital Twin FRU Identification for Engine Diagnostics

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Solution Overview

Problem

Current diagnostic methods for engines require manual pinpoint testing, leading to substantial vehicle downtime, labor costs, and warranty costs due to the need for manual evaluation of individual component health.

Innovation Solution

A computing system that receives operating data from a telematics circuit associated with an engine system, determines field-replaceable units (FRUs) based on the data, generates computer-based simulations for degradation levels of these FRUs, identifies the most probable failure by ranking the simulations, and transmits an electronic notification with the failure data to a computing device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual pinpoint testing is used to diagnose engine problems, then diagnostic accuracy is improved, but vehicle downtime and labor costs increase substantially

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidvehicle downtime
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary diagnostic actions by continuously monitoring engine parameters and comparing them against known failure patterns before actual failures occur. The digital twin simulates various failure scenarios in advance, allowing the system to pre-identify potential issues and their signatures, thus eliminating the need for time-consuming manual pinpoint testing when problems actually occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates a digital copy (digital twin) of the physical engine system that replicates its behavior and failure modes. This virtual model allows diagnostic testing and analysis to be performed on the copy rather than the actual engine, enabling comprehensive diagnostic evaluation without taking the physical vehicle out of service.

Inventive Principle:
Principle #26Copying

2Measurement precision

If manual pinpoint testing is used to evaluate component health, then diagnostic thoroughness is improved, but labor costs increase substantially

Engineering Contradiction:
Improvediagnostic thoroughnessVSAvoidlabor costs
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The diagnostic system performs self-service by automatically monitoring its own engine parameters, comparing them against the digital twin's simulated failure patterns, and identifying issues without human intervention. The system autonomously evaluates component health, generates diagnostic reports, and recommends repairs, eliminating the need for expensive manual labor while maintaining thorough diagnostic evaluation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical diagnostic procedures with an automated electronic system. Instead of technicians physically testing components with manual tools, the system uses electronic sensors, data processing, and digital twin simulation to automatically evaluate component health, thereby reducing labor costs while maintaining or improving diagnostic quality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If comprehensive manual diagnostics are performed, then identification of specific faulty parts is improved, but operational downtime increases

Engineering Contradiction:
Improveidentification of faulty partsVSAvoidoperational downtime
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system uses a digital copy of the engine (digital twin) to perform comprehensive diagnostic analysis. By simulating various failure scenarios and comparing actual sensor data against these virtual models, the system can rapidly identify specific faulty parts without physically inspecting or testing each component on the actual engine, thus minimizing operational downtime while maintaining accurate fault identification.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The digital twin pre-simulates various failure modes and stores their characteristic signatures. When diagnostic data is received, the system quickly matches actual readings against these pre-prepared failure patterns, enabling rapid identification of faulty parts without time-consuming manual evaluation procedures.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250029435A1Systems and methods for identifying field-replaceable units using a digital twin
Publication Date: 2025.01.23 CUMMINS INC
  • US20250029435A1 patent drawing
  • US20250029435A1 patent drawing
  • US20250029435A1 patent drawing

AI summary

A system can include one or more processors coupled with memory in communication with a vehicle system comprising a plurality of field-replaceable units (FRUs). The one or more processors can be configured to: generate, for each FRU of the plurality of FRUs of the vehicle system, a computer-based simulation; determine a degradation level for each FRU of the plurality of FRUs based on the computer-based simulation and operating data of each FRU of the plurality of FRUs; identify, from the plurality of FRUs, an FRU corresponding to a failure in the vehicle system based on the degradation level for the FRU; and provide an electronic notification identifying the failure in the vehicle system as corresponding to the FRU.