Autothrottle Control System for Turbopropeller Aircraft
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Solution Overview
Problem
The dual nature of control systems in turbopropeller-powered aircraft complicates the implementation of automation for autothrottle control, which is not as streamlined as in turbofan-powered aircraft.
Innovation Solution
A method and system for controlling autothrottle in turbopropeller-powered aircraft, involving determining a target position for manual inputs based on digital power requests and engine operating parameters, transmitting these positions to actuators, and evaluating autothrottle readiness conditions to alert operators and adjust engine power accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate control systems are used for engine and propeller in turbopropeller-powered aircraft, then the existing control architecture is maintained, but the implementation of automation becomes complicated
Solution Approach 1:
The patent combines the separate engine control system and propeller control system into a unified autothrottle control system that manages both components through a single integrated architecture, enabling automated control while simplifying the overall system structure
Solution Approach 2:
The control system is designed to perform multiple functions including engine power management, propeller speed control, and autothrottle automation within a single system framework, making it adaptable to various operational modes and aircraft configurations
2Measurement precision
If manual control inputs are used for engine power management, then operator control is maintained, but operational consistency and precision are reduced
Solution Approach 1:
The autothrottle system continuously monitors engine operating parameters and automatically adjusts power output to maintain precise control settings, providing feedback-based correction that ensures operational consistency without requiring constant manual intervention
Solution Approach 2:
The control system automatically manages engine power adjustments based on predetermined parameters and sensor inputs, enabling the system to self-regulate power output without requiring continuous operator input, thereby maintaining precision while reducing operational effort
Data Source
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AI summary
Herein provided are methods and systems for a method for controlling autothrottle of an engine (150). A digital power request is obtained from an autothrottle controller (204), the digital power request based on an autothrottle input (203) to the autothrottle controller (204). A manual input mode for the engine (150) is terminated, the manual input mode based on a second power request obtained from a manual input (202) associated with the engine (150). An autothrottle mode for the engine (150) is engaged to control the engine (150) based on the digital power request.