Aircraft Parachute Control System for Reliable Deployment

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Solution Overview

Problem

Existing aircraft parachute deployment systems suffer from high rates of incorrect and failed deployments due to insufficient interaction and unreliable decision-making by the parachute controller, which lacks comprehensive information about the aircraft's motion state.

Innovation Solution

Implement a control system where the aircraft's flight controller determines parachute deployment based on comprehensive sensing data, with a redundant parachute controller as a backup, ensuring accurate deployment even in communication failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the parachute controller independently determines deployment based on limited sensing data, then the parachute deployment decision can be made autonomously, but the rate of incorrect and failed deployments increases due to insufficient information

Engineering Contradiction:

Improveautonomous parachute deployment decisionVSAvoidparachute deployment accuracy

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The patent merges the parachute controller with the flight controller to form an integrated control system. The parachute controller gains access to comprehensive sensing data from the flight controller including attitude, position, velocity, and acceleration information. This integration allows the parachute deployment decision to be made with complete flight information while maintaining autonomous operation, thereby resolving the contradiction between automation and reliability.

Inventive Principle:

Principle #5Merging (Combining)

2Device complexity

If the parachute controller uses limited sensing data for deployment decisions, then the device complexity is reduced, but the measurement precision of the motion state is insufficient leading to high failure rates

Engineering Contradiction:

Improveparachute controller structureVSAvoidmotion state detection accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The flight controller is designed to serve multiple functions: it controls the aircraft flight operations and simultaneously provides comprehensive motion state data to the parachute controller for deployment decisions. By making the flight controller universal, the system avoids adding separate sensing systems while ensuring high measurement precision for parachute deployment, thus resolving the contradiction between device complexity and measurement precision.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If the flight controller sends parachute activation instructions via communication connection, then the parachute deployment can be controlled centrally, but the deployment may fail when communication connection is abnormal

Engineering Contradiction:

Improvecentralized parachute controlVSAvoidparachute deployment success rate

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The parachute controller is pre-configured with the capability to independently determine deployment conditions and activate the parachute without waiting for flight controller instructions. The controller continuously monitors flight data and is ready to autonomously trigger parachute deployment if communication with the flight controller fails or if deployment conditions are met. This preliminary preparation ensures that centralized control is maintained when communication is normal, while autonomous backup is available when communication fails, resolving the contradiction between ease of operation and reliability.

Inventive Principle:

Principle #10Preliminary 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

Reduces the rates of incorrect and failed parachute deployments by leveraging the flight controller's comprehensive information and reliable algorithm, with the parachute controller providing redundancy for backup control.

Implementation Method 1

A parachute can reduce the speed of the aircraft when landing through air resistance

Methodology Applied

Scientific EffectAir resistance: Drag

Data Source

PatentEP4691910A1Flight platform, parachute device, aerial vehicle, and control method and system therefor

Publication Date: 2026.02.11 SZ SHANZHI TECH CO LTD

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AI summary

A flight platform, a parachute device, an aircraft, and a control method and system thereof are provided, the flight platform includes an aircraft and a parachute device mounted on the aircraft; the aircraft includes a flight controller and a first sensing system, the parachute device includes a parachute controller and a second sensing system, the control system of the flight platform includes a flight controller in communication connection with the parachute device, the flight controller is configured to determine whether the motion state of the flight platform is abnormal based on sensing data from the first sensing system, and if the motion state of the flight platform is abnormal and the communication connection is normal, send a parachute activation instruction to the parachute device via the communication connection to control the parachute device to activate; a parachute controller is configured to determine whether the motion state of the flight platform is abnormal according to sensing data of the second sensing system, and if both the communication connection and the motion state of the flight platform are abnormal, the parachute controller controls the parachute device to activate.