Propeller Identification via Sensor-Based Engine Control
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Solution Overview
Problem
Contemporary turbo-prop engine aircraft lack an efficient system to automatically identify and adjust engine performance based on the type of propeller installed, leading to potential inefficiencies and user errors during operation.
Innovation Solution
A system comprising an electronic engine controller module, sensors, and a propeller assembly that senses unique parameters of the propeller and adjusts engine performance accordingly, allowing for automated identification and calibration of propeller types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual identification and configuration of propeller types is used, then device complexity is reduced, but user errors increase and reliability decreases
Solution Approach 1:
The propeller identification system enables the engine control system to automatically identify the installed propeller type through sensors detecting unique parameters (such as blade count, pitch range, or coded features on the propeller hub). The system self-configures engine performance parameters based on the detected propeller characteristics without requiring manual intervention, thereby eliminating user errors while maintaining simple operation for the end user.
Solution Approach 2:
The patent replaces manual mechanical identification methods with an automated sensor-based detection system. Sensors mounted on the engine detect electrical or magnetic signals from the propeller (such as toothed wheel patterns, magnetic markers, or electrical connections) to automatically determine propeller type, substituting human operator actions with automated electronic detection and configuration processes.
2Ease of operation
If automated propeller identification system is implemented, then user errors are reduced, but device complexity increases
Solution Approach 1:
The engine control system integrates multiple functions into a single automated identification and configuration process. The same sensor system that detects propeller type also provides data for performance optimization, and the control module that configures engine parameters also monitors and adjusts performance in real-time. This multi-functionality reduces the need for separate manual procedures while consolidating complexity into integrated system functions.
Solution Approach 2:
The system performs automatic self-configuration upon propeller installation or change detection. When the sensor detects a different propeller type, the system automatically retrieves the appropriate performance parameters from stored data and configures the engine control without requiring user intervention, making operation as simple as installing the propeller itself.
3Adaptability or versatility
If engine performance is manually configured, then adaptability is reduced, but device complexity is minimized
Solution Approach 1:
The system pre-stores performance parameter sets for multiple propeller types in the engine control module's memory. Each propeller type has its optimal performance characteristics (fuel injection timing, ignition timing, RPM limits, etc.) pre-calculated and stored. When a propeller is installed, the sensor quickly identifies the type and the system immediately retrieves and applies the pre-configured parameters, enabling rapid adaptation without complex real-time calculations or manual configuration.
Solution Approach 2:
The system automatically changes multiple engine performance parameters simultaneously based on the detected propeller type. This includes adjusting fuel injection quantities and timing, ignition timing, maximum RPM limits, and other performance characteristics to match the optimal settings for the installed propeller, enabling the engine to adapt its behavior to different propeller configurations.
Data Source
AI summary
A method and system are provided for coordinating a propeller with a controller module including a machine having a controller module and a propeller mounted to a propeller shaft at a hub. The shaft is arranged to be received in the machine, and a sensor is mounted to the machine, connected to the electronic controller module, and configured to sense the propeller when the propeller shaft is received in the machine.