Aircraft Icing Detection via Power Feed Deviation
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Solution Overview
Problem
Aircraft icing poses risks to stability and controllability, and existing anti-icing and de-icing measures consume excessive power and weight, necessitating a method to determine actual icing conditions without additional sensor systems to reduce energy consumption and weight.
Innovation Solution
A method that estimates power feed based on flight state and conditions, comparing estimated and actual power consumption to determine icing presence, allowing for targeted activation of icing counter-measures only when necessary, thereby reducing energy and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If icing counter-measures are activated independently of actual icing conditions, then aircraft stability and safety are maintained, but power consumption and operating resource requirements increase
Solution Approach 1:
The system continuously monitors actual power feed and compares it with estimated power feed to detect deviations indicating icing conditions. This feedback mechanism allows activation of counter-measures only when actually needed, resolving the contradiction between maintaining safety and reducing power consumption.
Solution Approach 2:
The aircraft's existing power system serves dual purposes: providing power to components and simultaneously detecting icing conditions through power consumption analysis. This eliminates the need for separate detection systems and enables on-demand activation of counter-measures.
2Measurement precision
If additional sensor systems are installed to detect icing conditions, then detection accuracy improves, but aircraft weight increases
Solution Approach 1:
The aircraft's existing power system serves dual purposes: providing power to components and simultaneously detecting icing conditions through power consumption analysis. This eliminates the need for separate detection systems and enables on-demand activation of counter-measures.
Solution Approach 2:
The power feed measurement system performs multiple functions: normal power distribution and icing detection. By making the existing system multi-functional, the patent avoids adding weight while maintaining detection capability.
3Speed
If icing counter-measures are activated based on icing conditions alone, then response time is reduced, but power consumption increases due to false activations
Solution Approach 1:
The system continuously monitors actual power feed and compares it with estimated power feed to detect deviations indicating icing conditions. This feedback mechanism allows activation of counter-measures only when actually needed, resolving the contradiction between maintaining safety and reducing power consumption.
Solution Approach 2:
The system dynamically adjusts its detection threshold and response based on real-time power consumption data. By making the detection system adaptive rather than static, it can respond quickly to actual icing while avoiding false activations that would waste power.
Data Source
AI summary
A method and a device are disclosed for determining icing on an aircraft, as well as an aircraft. The method can include acquiring a current flight state of the aircraft, acquiring current flight conditions of the aircraft, estimating an estimated power feed of a power supply of the aircraft for the current flight state under the current flight conditions, comparing the estimated power feed with an actual power feed of the power supply of the aircraft, and determining a presence of icing on the aircraft when a probability of an existence of icing conditions exceeds a predetermined probability threshold and the estimated power feed exceeds the actual power feed by a predetermined amount.