Flight Vehicle Stabilization for Tilted and Rotating Payload Sections

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Solution Overview

Problem

Existing flight vehicle control and stabilization systems are inadequate in managing the orientation and perturbations of non-fixed components relative to fixed components, particularly in multi-rotor vehicles, leading to instability and loss of control during tilting and rotation.

Innovation Solution

A system and method that detect the orientation and perturbations of a non-fixed portion of a flight vehicle relative to a fixed portion, calculating directional adjustments to re-orient the fixed portion and maintain stability by adjusting propulsion forces and mechanical means, such as springs, to match the new orientation of the non-fixed portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If existing control and stabilization systems are used for flight vehicles, then basic flight control is achieved, but stability is lost during tilting and rotation of non-fixed components

Engineering Contradiction:

Improveflight vehicle stabilityVSAvoidhandling of non-fixed component orientation

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The system uses sensors to detect the orientation of non-fixed portions relative to fixed portions, feeds this information back to a controller, which then adjusts propulsion forces to maintain stability. This closed-loop feedback mechanism enables the system to respond dynamically to orientation changes and maintain stability during tilting and rotation operations.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts propulsion forces based on real-time orientation detection of non-fixed components. The control system modifies thrust distribution across multiple rotors in response to detected orientation changes, enabling the flight vehicle to maintain stability while accommodating dynamic tilting and rotation of non-fixed portions.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the non-fixed portion is allowed to tilt and rotate freely, then maneuverability is improved, but control is lost

Engineering Contradiction:

ImprovemaneuverabilityVSAvoidcontrol reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

Sensors continuously monitor the orientation of non-fixed portions, providing feedback to the control system. This enables the system to maintain control reliability by detecting orientation changes and adjusting propulsion forces accordingly, while still allowing free tilting and rotation for improved maneuverability.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system changes propulsion force parameters dynamically in response to detected orientation changes. By adjusting the magnitude and direction of thrust from individual rotors based on non-fixed portion orientation, the system maintains control reliability while enabling enhanced maneuverability through free tilting and rotation.

Inventive Principle:

Principle #35Parameter changes

3Stability of the object's composition

If traditional stabilization algorithms are used, then level flight is maintained, but perturbations from non-fixed portions cannot be compensated

Engineering Contradiction:

Improvelevel flight stabilityVSAvoiddetection of non-fixed portion orientation

Core Design Contradiction:

Stability of the object's compositionVSDifficulty of detecting and measuring

Solution Approach 1:

The system implements feedback detection specifically for non-fixed portion orientation using sensors that measure the relative orientation between fixed and non-fixed portions. This feedback enables the control system to compensate for perturbations from non-fixed portions while maintaining level flight stability, overcoming the limitations of traditional algorithms that only monitored overall vehicle attitude.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system segments the flight vehicle into fixed and non-fixed portions, with separate orientation detection for each segment. By independently measuring the orientation of non-fixed portions relative to the fixed structure, the system can detect and compensate for local perturbations while maintaining overall flight stability, addressing the detection difficulty of traditional unified systems.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11216012B2Control and stabilization of a flight vehicle from a detected perturbation by tilt and rotation

Publication Date: 2022.01.04 RHOMAN AEROSPACE CORP

AI summary

A flight vehicle control and stabilization process detects and measures an orientation of a non-fixed portion relative to a fixed frame or portion of a flight vehicle, following a perturbation in the non-fixed portion from one or both of tilt and rotation thereof. A pilot or rider tilts or rotates the non-fixed portion, or both, to intentionally adjust the orientation and effect a change in the flight vehicle's direction. The flight vehicle control and stabilization process calculates a directional adjustment of the rest of the flight vehicle from this perturbation and induces the fixed portion to re-orient itself with the non-fixed portion to effect control and stability of the flight vehicle. The flight vehicle control and stabilization process also detects changes in speed and altitude, and includes stabilization components to adjust flight vehicle operation from unintentional payload movement on the non-fixed portion.