Rotorcraft Pilot Training Control for Asymmetric Engine Simulation
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Solution Overview
Problem
Existing pilot training methods for rotorcraft engine failures do not effectively simulate asymmetrical flight phases, leading to engine stress and costly maintenance, and lack a realistic simulation of engine transitions between asymmetrical and symmetrical flight modes.
Innovation Solution
A method and system for training rotorcraft pilots that simulates asymmetrical flight by regulating engine power distribution and displaying distinct simulated powers, allowing transitions between asymmetrical and symmetrical flight modes, reducing engine stress and maintaining engine efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all engines are operated simultaneously during simulated engine failure training, then engine stress is reduced and maintenance costs decrease, but the realism of the asymmetrical flight phase simulation is compromised
Solution Approach 1:
The patent creates a virtual copy of the failed engine's power output through software simulation. The functioning engine(s) physically provide all necessary power, while a display system presents a virtual representation of the failed engine's power contribution to the pilot, achieving both engine protection and training realism simultaneously
Solution Approach 2:
The patent introduces a power distribution control system as an intermediary between the pilot's control inputs and the engine power delivery. This intermediary automatically manages the asymmetrical power distribution, allowing the simulation of engine failure conditions while preventing actual asymmetrical operation that would stress the engines
2Manufacturing precision
If asymmetrical engine operation is implemented during training, then realistic engine failure simulation is achieved, but engine stress increases and maintenance costs rise
Solution Approach 1:
Instead of creating asymmetrical physical engine operation to simulate failure, the patent inverts the approach by maintaining symmetrical physical operation (both engines running normally) while creating asymmetrical visual representation through the display system, thereby achieving simulation realism without the harmful physical asymmetry
Solution Approach 2:
The patent creates a virtual copy of the failure condition through software and display systems rather than physical engine modification. The functioning engine(s) physically provide all necessary power symmetrically, while the display presents a virtual representation of the failed engine's power contribution, eliminating stress on engines while maintaining training value
3Ease of operation
If engine power is reduced to zero or greatly reduced during transition phase, then autorotation flight training is enabled, but power transmission to rotor becomes insufficient
Solution Approach 1:
The patent prepares compensatory measures in advance by having additional functioning engine(s) ready to immediately compensate for the simulated power loss. When the simulation presents a virtual engine failure, the remaining physical engine(s) are already positioned to provide increased power output, cushioning against any actual power deficiency and enabling safe autorotation training
Data Source
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AI summary
The present invention relates to a method for training the pilot of a rotorcraft (1) comprising at least two engines (3, 4) and at least one rotor (5) contributing to the lift of said rotorcraft (1) in the air. Such a method (10, 20) comprises at least the following steps: - piloting (11, 21) said rotorcraft (1) in a mode where each engine (3, 4) provides motive power to the rotor (5), and - activation (12, 22) of a first control to start a training phase simulating asymmetric flight, said training phase comprising a first flight phase including initial regulation with a controller (6) regulating said at least two engines (3, 4) and a first display with a display (7) of information carrying at least two simulated power levels.