Automated Vehicle Diagnostic System for Root Cause Analysis
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Solution Overview
Problem
Design engineers face challenges in identifying and optimizing the root cause of undesirable vehicle behavior, as existing methods are time-consuming and often rely on trial and error, lacking efficient systems for diagnosing issues in vehicle performance, systems, and components.
Innovation Solution
A diagnostic system that includes an input device for receiving desirable performance characteristics and test data, a diagnostic processor to compare these with detected data, and an output device to generate an analysis of likely causes of undesirable performance, specifically identifying vehicle, system, and component data points, thereby providing an automated diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If design engineers manually examine the vehicle to determine root cause of undesirable behavior, then they can identify the component or control causing the issue, but the process is very time-consuming and may require hours upon hours of examination
Solution Approach 1:
The patent replaces manual mechanical examination by engineers with an automated computer-based diagnostic system that processes test data through algorithms to identify root causes, thereby eliminating the time-consuming manual analysis while maintaining diagnostic accuracy
Solution Approach 2:
The diagnostic system enables the vehicle testing process to self-diagnose issues by automatically comparing test data against desired performance characteristics and autonomously identifying undesirable behavior and its root causes without requiring continuous human intervention
2Adaptability or versatility
If design engineers use trial and error to discover optimization opportunities, then they may identify components for optimization, but the process is very difficult or even impossible and extremely time-consuming
Solution Approach 1:
The system implements automated feedback by continuously comparing actual test data against desired performance characteristics, automatically identifying deviations and ranking potential root causes, which eliminates the need for time-consuming trial and error optimization discovery
Solution Approach 2:
The diagnostic system performs preliminary automated analysis of test data to identify and rank potential root causes before engineers begin optimization work, preparing the groundwork in advance and eliminating the need for time-consuming trial-and-error exploration during the optimization phase
Data Source
AI summary
A system includes an input device that receives desirable performance characteristics of a vehicle a diagnostic processor that receives vehicle test data, and determines undesirable vehicle performance data points by comparing the desirable vehicle performance characteristics to the test data. The diagnostic processor also determines undesirable system data points that correspond to likely causes of the undesirable vehicle performance data points by comparing the desirable system performance characteristics to the test data, and determines undesirable component data points that correspond to likely causes of the undesirable system data points by comparing the desirable component performance characteristics to the test data. The diagnostic processor also generates an analysis of the undesirable component data points including selected component data points of the undesirable component data points that are likely causes of the undesirable vehicle performance data points, and controls an output device to output the analysis of the undesirable component data points.