Deicing Vehicle Boom One-Key Return Control

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Solution Overview

Problem

Existing airplane deicing vehicles suffer from slow operation actions, high misoperation probability, high labor intensity, slow boom retraction speed, and long boom retraction time due to manual control of the aerial operating arm, leading to reduced work efficiency and aircraft safety concerns.

Innovation Solution

A deicing vehicle with a one-key return function, equipped with sensors and a control system that automatically retraces the aerial operating arm to its initial position using a boom controller, folding arm angle sensor, first-section arm angle sensor, stay wire sensor, and rotary table angle encoder, allowing for precise and rapid retraction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual control of the aerial operating arm is used, then the operator can control the boom movement, but the operation action is slow and the labor intensity is high

Engineering Contradiction:
Improveease of operationVSAvoidproductivity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system uses sensors to automatically detect the boom's position and control system to autonomously control the hydraulic cylinders, enabling the aerial operating arm to return to the initial position without manual intervention. This self-service mechanism reduces labor intensity while maintaining operational efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical control with an automated control system that uses sensors to detect position and electronic control signals to operate the hydraulic cylinders. This substitution of mechanical manual operation with automated electromechanical control reduces labor intensity and improves operational speed.

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

2Reliability

If manual control of the aerial operating arm is used, then the operator can monitor the boom position, but the boom retraction speed is slow and retraction time is long

Engineering Contradiction:
ImprovereliabilityVSAvoidboom retraction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system incorporates sensors that continuously detect the boom's position and feed this information back to the control system. The control system uses this feedback to automatically adjust the hydraulic cylinder operation, ensuring the boom returns to the initial position accurately and efficiently, reducing retraction time while maintaining reliability.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system is pre-programmed with the initial position coordinates of the boom. When retraction is needed, the system automatically executes the pre-planned return path, eliminating delays associated with manual monitoring and adjustment, thus reducing overall retraction time.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If manual control of the aerial operating arm is used, then the operator can control the boom movement, but the misoperation probability is high

Engineering Contradiction:
Improveease of operationVSAvoidmisoperation probability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The automated system performs self-control of the boom movement based on sensor feedback, eliminating human error and manual misoperation. The system independently determines the appropriate movement and execution, significantly reducing the probability of misoperation while maintaining ease of use through automatic functionality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The sensor feedback mechanism continuously monitors the boom's actual position and compares it with the target position, automatically adjusting the control signals to the hydraulic cylinders. This closed-loop feedback system prevents misoperation by ensuring accurate positioning without manual intervention.

Inventive Principle:
Principle #23Feedback

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 operator labor intensity, increases boom retraction speed, shortens retraction time, and prevents misoperations, thereby enhancing work efficiency and aircraft safety.

Implementation Method 1

a hydraulic pump, a folding arm hydraulic cylinder, a first-section arm lifting hydraulic cylinder, a second-section arm telescopic hydraulic cylinder

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Implementation Method 2

a folding arm angle sensor, a first-section arm angle sensor, a stay wire sensor, a rotary table angle encoder

Methodology Applied
Scientific EffectElectrical signal detection:

Data Source

PatentEP4375199B1Deicing vehicle having function of one-key return and method for controlling return of boom
Publication Date: 2026.01.28 WEIHAI GUANGTAI AIRPORT EQUIP CO LTD
  • EP4375199B1 patent drawingFigure 1~2
  • EP4375199B1 patent drawingFigure 3~4
  • EP4375199B1 patent drawingFigure 5~6

AI summary

The invention relates to a deicing vehicle with a one-key return function and a boom return control method, and solves the technical problems of slow operation action, high misoperation probability, high labor intensity of an operator, slow boom retraction speed and long boom retraction time in a process of controlling an aerial operating arm to retract to an initial position by the operator after a deicing operation of an existing airplane deicing vehicle is finished; and the invention comprises an electric vehicle chassis, a power battery pack, an aerial operating device, a deicing spray system, a deicing liquid tank, a folding arm angle sensor, a first-section arm angle sensor, a stay wire sensor, a rotary table angle encoder and a boom one-key return switch, and the aerial operating device comprises an operating cabin, a folding arm, a second-section arm, a first-section arm, a rotary table, a hydraulic pump, a folding arm hydraulic cylinder, a second-section arm telescopic hydraulic cylinder, a first-section arm lifting hydraulic cylinder, a boom control valve set, a rotary table hydraulic motor, a rotary support, a driving gear and a driven gear.