Sensor Fault Hierarchy for Reliable Engine Control
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Solution Overview
Problem
Existing control systems for engines face challenges in managing faulty sensor inputs, leading to inefficient operation, increased wear-and-tear, or catastrophic failure due to undetected or uncorrected faulty signals.
Innovation Solution
A method and system for sensor fault management that involves obtaining potential faults, associating severity levels, and generating a fault management tool to accommodate faulty behavior by implementing a hierarchy of accommodation approaches, which includes fault detection and correction mechanisms within the control system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fault management tool is implemented with hierarchy of accommodation approaches, then reliability is improved, but device complexity increases
Solution Approach 1:
The fault management system is segmented into multiple hierarchical levels (first accommodation approach, second accommodation approach, third accommodation approach) where each level handles specific types of faults. This segmentation allows the system to address complex fault management requirements through modular, organized approaches rather than a monolithic complex system.
Solution Approach 2:
The system performs preliminary fault detection and classification before implementing accommodation approaches. By预先 identifying potential faults and organizing accommodation strategies in advance, the system reduces the complexity of real-time decision-making while maintaining high reliability in fault management.
2Productivity
If multiple accommodation approaches are implemented for different fault severity levels, then operational efficiency is improved, but ease of operation deteriorates
Solution Approach 1:
The control system automatically selects and implements the appropriate accommodation approach based on the detected fault severity level without requiring manual intervention. The system self-manages the complexity of multiple accommodation strategies by autonomously determining which approach (first, second, or third) to apply based on pre-established severity criteria.
Solution Approach 2:
The system continuously monitors sensor inputs and feedback loops to detect faults, classify their severity, and adjust the accommodation approach accordingly. This automated feedback mechanism maintains operational efficiency while hiding the complexity of multiple accommodation strategies from operators.
Data Source
AI summary
Methods and systems for sensor fault management are provided. A plurality of potential faults associated with a sensor are obtained. Accommodation approaches are associated with the plurality of potential faults. Severity levels are associated to the plurality of potential faults to produce a hierarchy of potential faults. A fault management tool is generated based on the hierarchy, the fault management tool defining a framework implementable by a controller associated with the sensor for accommodating faulty behaviour of the sensor by following the accommodation approaches of the hierarchy for the plurality of potential faults.