Aircraft Control System with Sensor-Driven Plasma Actuators

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Solution Overview

Problem

Supersonic and hypersonic aircraft face challenges in achieving quick response rates and stability due to high-frequency disturbances and heavy control surfaces, which affect flight efficiency and control.

Innovation Solution

Incorporation of plasma actuators along the leading edges of aircraft wings, controlled by a processing unit, to generate plasma for enhanced control and stability, utilizing sensors for real-time adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional control surfaces are used for aircraft control, then structural strength and reliability are maintained, but the weight and drag increase, reducing aircraft efficiency

Engineering Contradiction:
Improvecontrol surface reliabilityVSAvoidcontrol surface weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces conventional mechanical control surfaces with plasma actuators that generate plasma forces to control aircraft flight. This substitution eliminates the need for heavy mechanical components while maintaining control functionality, directly addressing the weight reduction goal without sacrificing reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the fundamental operating parameter from mechanical force to plasma force. By controlling plasma properties (temperature, density, distribution) through electrical energy input, the system achieves lightweight control while maintaining the ability to generate sufficient aerodynamic forces for stable flight.

Inventive Principle:
Principle #35Parameter changes

2Strength

If conventional control surfaces are used for aircraft control, then structural strength is maintained, but the response rate becomes slower, reducing adaptability to high-frequency disturbances

Engineering Contradiction:
Improvecontrol surface strengthVSAvoidresponse rate
Core Design Contradiction:
StrengthVSSpeed

Solution Approach 1:

The patent replaces the mechanical actuation system with an electromagnetic plasma generation system. Plasma actuators can be rapidly switched on and off and adjusted in real-time without the inertial limitations of mechanical systems, enabling much faster response rates to handle high-frequency disturbances during supersonic and hypersonic flight.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention introduces dynamic control through plasma generation that can be rapidly adjusted in real-time. The plasma actuators can be modulated at high frequencies to dynamically counteract disturbances, providing adaptive control that responds much faster than conventional mechanical surfaces.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If heavier control surfaces are used to improve stability, then flight stability is enhanced, but aircraft efficiency decreases due to increased weight and drag

Engineering Contradiction:
Improveflight stabilityVSAvoidaircraft efficiency
Core Design Contradiction:
Stability of the object's compositionVSLoss of energy

Solution Approach 1:

The patent replaces heavy mechanical control surfaces with lightweight plasma actuators that generate control forces through plasma. This substitution maintains flight stability capability while dramatically reducing weight and associated energy losses, thereby improving overall aircraft efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention uses periodic or pulsed plasma generation to provide stable control forces. By timing and modulating plasma activation patterns, the system achieves stable flight control without requiring continuous heavy mechanical structures, reducing energy consumption while maintaining stability.

Inventive Principle:
Principle #19Periodic action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Improves aircraft control and stability at supersonic and hypersonic speeds by providing quicker response rates and reducing the weight and drag of conventional control surfaces.

Implementation Method 1

at least one plasma actuator disposed in the vicinity of an aircraft wing leading edge... The control processing unit commands the plasma actuator to generate plasma

Methodology Applied
Scientific EffectPlasma: Plasma

Data Source

PatentUS20250282474A1Control system for an aircraft
Publication Date: 2025.09.11 GENERAL ELECTRIC CO
  • US20250282474A1 patent drawing
  • US20250282474A1 patent drawing
  • US20250282474A1 patent drawing

AI summary

An aircraft includes a combustion engine including a fuel injector, a plurality of plasma actuators disposed in the combustion engine downstream of the fuel injector, a control processing unit communicatively coupled to each plasma actuator of the plurality of plasma actuators, and at least one sensor communicatively coupled to the control processing unit, wherein the control processing unit commands the fuel injector and at least one plasma actuator of the plurality of plasma actuators to generate plasma in response to a signal from the at least one sensor.