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Unmanned aerial vehicle aileron deceleration system and method

A deceleration system, UAV technology, applied in the field of aircraft control

Inactive Publication Date: 2019-11-01
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no case of using the aileron deceleration system for landing roll deceleration, and there is no report on the design of the aileron deceleration system

Method used

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  • Unmanned aerial vehicle aileron deceleration system and method
  • Unmanned aerial vehicle aileron deceleration system and method
  • Unmanned aerial vehicle aileron deceleration system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An unmanned aerial vehicle aileron deceleration system, including aileron command generator, aileron deceleration system, flight control system, sensor system, and aileron control system; wherein, the aileron control system controls the rudder according to instructions to realize aileron deflection ; The sensor system detects the status information of the UAV; the flight control system issues control commands to control the UAV according to the status information of the sensor system; the aileron deceleration system sends out aileron deflection commands after the UAV is grounded to achieve Increase drag and decelerate; the aileron command generator sends out the aileron deflection command, which is coupled with the aileron deflection command of the aileron deceleration system and the aileron deflection command issued by the flight control system to control the attitude of the UAV.

Embodiment 2

[0030] A method for decelerating UAV ailerons, the steps are:

[0031] The S1 flight control system determines whether the UAV system has entered the decelerating and rolling phase:

[0032] S11 judges whether the drone is grounded according to the information provided by the sensor system, and thus determines the grounding state of the drone, and judges whether the drone enters the landing roll phase according to the judgment command; if it enters the landing roll phase, follow-up operations are performed. Otherwise, re-judge whether the UAV has entered the decelerating and rolling phase;

[0033] S12 Determine whether the UAV enters the deceleration and roll phase according to whether the flight control system issues a stop take-off instruction; if it enters the landing and roll phase, follow up operations, otherwise judge whether the UAV enters the deceleration and roll phase again;

[0034] S2 After the UAV enters the deceleration and roll phase, the aileron command generator send...

Embodiment 3

[0039] A deceleration method for the aileron of an unmanned aerial vehicle. After the flight control system judges that the unmanned aerial vehicle system enters the deceleration and roll phase, the aileron command generator sends out the aileron deflection angle command, and the aileron command generator sends the preset aileron deflection angle The instruction is: set the speed stage number n of the drone and the corresponding speed segment value V 1 , V 2 ...V n , The speed value decreases sequentially, and different speed segment values ​​correspond to different aileron deflection angles; after the aileron control system receives the aileron deflection command, it controls the aileron deflection to the specified state. A preset aileron deflection angle command selection is: as the speed of the UAV decreases, the aileron deflection angle gradually increases.

[0040] Example 3

[0041] A deceleration method for ailerons of an unmanned aerial vehicle. After the flight control sys...

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Abstract

The invention discloses an unmanned aerial vehicle aileron deceleration system and method. After an unmanned aerial vehicle enters a deceleration slipping phase, an aileron instruction generator issues an aileron drift angle instruction; the aileron drift angle instruction is coupled with an aileron deflection instruction of the aileron deceleration system and an aileron deflection instruction sent by a flight control system by controlling the posture of the unmanned aerial vehicle; the following two types of situations are contained: normal situation: the aileron instruction generator sends apreset aileron drift angle instruction; emergency situation: the aileron instruction generator sends an aileron maximum drift angle instruction; and after receiving the aileron drift angle instruction, an aileron control system controls an aileron to deflect to a specified state. The preset aileron drift angle instruction is: different aileron drift angles with different speed segment values. Theunmanned aerial vehicle aileron deceleration system disclosed by the invention are applicable to all types of unmanned aerial vehicle platforms, has high versatility, clear program logic, high operability, easy implementation, a low cost and a remarkable deceleration effect, and can effectively shorten the slipping time and reduce the slipping distance, thereby reducing risks.

Description

Technical field [0001] The invention belongs to the technical field of aircraft control, in particular to a method for decelerating an aircraft. Background technique [0002] In the existing technology, the landing control method of most UAVs is that after the UAV has landed and touched down, the flight control computer automatically controls to complete the deceleration and stop; currently the deceleration measures or deceleration systems commonly used by UAVs are the following equipment or below The combination of equipment: deceleration parachute, brake, deceleration plate; the current deceleration system has simple deceleration measures and less redundancy. When a certain deceleration device cannot be used, its deceleration effect will be greatly reduced, thereby increasing the deceleration time and extending the deceleration distance. Affects landing safety; on the basis of the existing conventional deceleration system, the aileron deceleration system adds deceleration equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08G05D1/10
CPCG05D1/0808G05D1/101
Inventor 李锐韩锐夏斌李涛李阳潘怡衡唐克兵
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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