CN113753226A - Integrated embedded aircraft braking system - Google Patents
Integrated embedded aircraft braking system Download PDFInfo
- Publication number
- CN113753226A CN113753226A CN202110951117.8A CN202110951117A CN113753226A CN 113753226 A CN113753226 A CN 113753226A CN 202110951117 A CN202110951117 A CN 202110951117A CN 113753226 A CN113753226 A CN 113753226A
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- CN
- China
- Prior art keywords
- brake
- skid
- auxiliary controller
- airplane
- control software
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/42—Arrangement or adaptation of brakes
- B64C25/44—Actuating mechanisms
- B64C25/46—Brake regulators for preventing skidding or aircraft somersaulting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
- B60T8/1703—Braking or traction control means specially adapted for particular types of vehicles for aircrafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses an integrated embedded airplane brake system, which comprises anti-skid brake control software, a brake command sensor, a speed sensor and a servo valve, wherein the anti-skid brake control software comprises a first control module, a second control module and a first control module; the antiskid brake control software is integrated in an auxiliary controller of the airplane; when the airplane brakes, a pilot steps on the brake command sensor by foot, the brake command sensor outputs a voltage signal to the auxiliary controller, a main program in the auxiliary controller calls anti-skid brake control software, the anti-skid control software outputs a control current to the servo valve, and the servo valve outputs brake pressure to a brake main wheel to brake the airplane; meanwhile, the speed sensor senses the speed of the main wheel of the brake, outputs an alternating current sine signal to the auxiliary controller, and respectively collects signals of the brake command sensor and the speed sensor to control the increase and decrease of brake pressure, so that the anti-skid brake function is realized. The invention improves the integration level of the product, can still normally realize the brake anti-skid function and greatly reduces the weight of a brake system and an airplane.
Description
Technical Field
The invention belongs to the technical field of airplanes, and particularly relates to an airplane brake system.
Background
The existing aircraft brake system is mainly composed of a brake command sensor, an antiskid brake control box, a servo valve and a speed sensor, namely, when an aircraft lands and brakes, a pilot steps on the brake command sensor, the brake command sensor outputs a voltage signal which is in direct proportion to the stepping displacement of the pilot to the antiskid brake control box, the antiskid brake control box outputs a control current which is in direct proportion to the voltage to the servo valve according to the magnitude of the input voltage signal, and controls and outputs a brake pressure which is in direct proportion to the stepping displacement of the pilot to a brake owner wheel so as to brake the aircraft. Meanwhile, the speed sensor arranged in the main wheel of the brake is used for sensing the speed of the main wheel of the brake and outputting an alternating current sinusoidal signal which is in direct proportion to the speed of the main wheel of the brake to the anti-skid brake control box, the anti-skid brake control box is used for respectively acquiring signals of the brake command sensor and the speed sensor, and after comprehensive processing, a control current signal is output to the servo valve to control the increase and decrease of brake pressure and adjust anti-skid brake, so that the anti-skid brake function is realized.
At present, an anti-skid brake control unit serving as a key part in a brake system at home and abroad is mainly in an anti-skid brake control box form and is divided into an analog control box and a digital control box. Compared with an analog anti-skid control box, the digital anti-skid control box has the advantages that the control precision is higher, the function is more complete, the detection on the working state of the brake system is more thorough, the safety is higher, meanwhile, the communication function of the digital anti-skid control box enables the working state of the brake system in the whole brake process to be well recorded and reflected, and the analysis and the improvement on each stage of the brake process are facilitated. The weight of the domestic antiskid brake control unit product is generally maintained at about 2.5kg or even higher, and the antiskid brake control unit product is also independently installed on an airplane, so that the antiskid brake control box exists as an independent finished product mode in the composition of a brake system, and a large amount of space and weight of the airplane can be inevitably occupied.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an integrated embedded aircraft brake system, which comprises anti-skid brake control software, a brake command sensor, a speed sensor and a servo valve, wherein the anti-skid brake control software comprises a first control module, a second control module and a first servo valve; the antiskid brake control software is integrated in an auxiliary controller of the airplane; when the airplane brakes, a pilot steps on the brake command sensor by foot, the brake command sensor outputs a voltage signal to the auxiliary controller, a main program in the auxiliary controller calls anti-skid brake control software, the anti-skid control software outputs a control current to the servo valve, and the servo valve outputs brake pressure to a brake main wheel to brake the airplane; meanwhile, the speed sensor senses the speed of the main wheel of the brake, outputs an alternating current sine signal to the auxiliary controller, and respectively collects signals of the brake command sensor and the speed sensor to control the increase and decrease of brake pressure, so that the anti-skid brake function is realized. The invention improves the integration level of the product, can still normally realize the brake anti-skid function and greatly reduces the weight of a brake system and an airplane.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an integrated embedded aircraft brake system comprises anti-skid brake control software, a brake command sensor, a speed sensor and a servo valve; the anti-skid brake control software is integrated in an auxiliary controller of the airplane; when an airplane lands and brakes, a pilot steps on a brake command sensor, the brake command sensor outputs a 1.8-6.3V voltage signal which is in direct proportion to the stepping displacement of the pilot to an auxiliary controller, a main program in the auxiliary controller calls anti-skid brake control software, the anti-skid control software controls the auxiliary controller to output 0-40mA control current which is in direct proportion to the voltage signal to a servo valve according to the magnitude of an input voltage signal, and the servo valve controls and outputs brake pressure which is in direct proportion to the stepping displacement of the pilot to a brake owner wheel to brake the airplane;
meanwhile, a speed sensor arranged in the main wheel of the brake senses the speed of the main wheel of the brake and outputs an alternating current sinusoidal signal with the frequency of 0-2000Hz which is in direct proportion to the speed of the main wheel of the brake to an auxiliary controller, anti-skid brake control software in the auxiliary controller respectively collects signals of a brake command sensor and the speed sensor and controls the auxiliary controller to output a current signal to a servo valve to control the increase and decrease of brake pressure and adjust anti-skid brake, so that the anti-skid brake function is realized.
The invention has the following beneficial effects:
the hardware part of the auxiliary controller which is necessary to be matched with the airplane is shared with the functional hardware in the anti-skid brake control box, the software part which completes the anti-skid brake control function in the anti-skid brake control box is completely integrated and embedded into the main program of the auxiliary controller in a subprogram mode, hardware resources are saved, the anti-skid brake control box is omitted in the brake system, the integration level of the product is improved, the brake anti-skid function can still be normally realized, and the weight of the brake system and the airplane is greatly reduced.
Drawings
FIG. 1 is a schematic block diagram of an integrated embedded brake system according to the present invention.
FIG. 2 is a schematic block diagram of a conventional universal braking system.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The invention aims to provide an innovative design for the control mode of the existing brake system, and the brake system cancels the arrangement of an anti-skid brake control box, thereby greatly improving the integration level of products and reducing the weight of the brake system and an airplane.
As shown in fig. 2, current brake systems are configured with anti-skid brake control boxes that must occupy a significant amount of space and weight of the aircraft. Therefore, in order to reduce the weight of the brake system and the airplane and improve the integration level of products, the invention carries out design improvement, an auxiliary controller hardware part which is necessary to be matched with a flight control system on the airplane is shared with functional hardware in an anti-skid brake control box, a software part which completes the anti-skid brake control function in the anti-skid brake control box is completely integrated and embedded into a main program of the auxiliary controller in a subprogram mode, the anti-skid brake control box is cancelled in the brake system, hardware resources are saved, the integration level of the products is improved, the weight of the brake system and the airplane is reduced, and the integrated embedding of the brake system is realized.
As shown in fig. 1, an integrated embedded aircraft braking system includes anti-skid braking control software, a braking command sensor, a speed sensor, and a servo valve; the anti-skid brake control software is integrated in an auxiliary controller of the airplane; when an airplane lands and brakes, a pilot steps on a brake command sensor, the brake command sensor outputs a 1.8-6.3V voltage signal which is in direct proportion to the stepping displacement of the pilot to an auxiliary controller, a main program in the auxiliary controller calls anti-skid brake control software, the anti-skid control software controls the auxiliary controller to output 0-40mA control current which is in direct proportion to the voltage signal (the specific current index is determined by the pressure flow characteristic of a servo valve) to the servo valve according to the magnitude of an input voltage signal, and the servo valve controls and outputs brake pressure which is in direct proportion to the stepping displacement of the pilot to a brake owner wheel to brake the airplane;
meanwhile, a speed sensor arranged in the main wheel of the brake senses the speed of the main wheel of the brake and outputs an alternating current sinusoidal signal with the frequency of 0-2000Hz which is in direct proportion to the speed of the main wheel of the brake to an auxiliary controller, anti-skid brake control software in the auxiliary controller respectively collects signals of a brake command sensor and the speed sensor and controls the auxiliary controller to output a current signal to a servo valve to control the increase and decrease of brake pressure and adjust anti-skid brake, so that the anti-skid brake function is realized.
Claims (1)
1. An integrated embedded aircraft brake system is characterized by comprising anti-skid brake control software, a brake command sensor, a speed sensor and a servo valve; the anti-skid brake control software is integrated in an auxiliary controller of the airplane; when an airplane lands and brakes, a pilot steps on a brake command sensor, the brake command sensor outputs a 1.8-6.3V voltage signal which is in direct proportion to the stepping displacement of the pilot to an auxiliary controller, a main program in the auxiliary controller calls anti-skid brake control software, the anti-skid control software controls the auxiliary controller to output 0-40mA control current which is in direct proportion to the voltage signal to a servo valve according to the magnitude of an input voltage signal, and the servo valve controls and outputs brake pressure which is in direct proportion to the stepping displacement of the pilot to a brake owner wheel to brake the airplane;
meanwhile, a speed sensor arranged in the main wheel of the brake senses the speed of the main wheel of the brake and outputs an alternating current sinusoidal signal with the frequency of 0-2000Hz which is in direct proportion to the speed of the main wheel of the brake to an auxiliary controller, anti-skid brake control software in the auxiliary controller respectively collects signals of a brake command sensor and the speed sensor and controls the auxiliary controller to output a current signal to a servo valve to control the increase and decrease of brake pressure and adjust anti-skid brake, so that the anti-skid brake function is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110951117.8A CN113753226A (en) | 2021-08-18 | 2021-08-18 | Integrated embedded aircraft braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110951117.8A CN113753226A (en) | 2021-08-18 | 2021-08-18 | Integrated embedded aircraft braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113753226A true CN113753226A (en) | 2021-12-07 |
Family
ID=78790396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110951117.8A Pending CN113753226A (en) | 2021-08-18 | 2021-08-18 | Integrated embedded aircraft braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113753226A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342365A (en) * | 1989-07-11 | 1991-02-22 | Kayaba Ind Co Ltd | Brake system for aircraft |
| DE102009060562A1 (en) * | 2009-12-23 | 2011-06-30 | Deutsches Zentrum für Luft- und Raumfahrt e.V., 51147 | Device for guiding stabilization of a vehicle |
| US20120175943A1 (en) * | 2009-06-29 | 2012-07-12 | Jan Grebe | Pressure control valve arrangement having an eccentrically mounted double magnet |
| CN102602382A (en) * | 2011-04-14 | 2012-07-25 | 中南大学 | Anti-skid braking controller for airplane |
| CN103640693A (en) * | 2013-12-02 | 2014-03-19 | 西安航空制动科技有限公司 | DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system |
| CN105523179A (en) * | 2014-09-28 | 2016-04-27 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft brake pressure feedback regulation system and aircraft brake pressure feedback regulation method |
| CN210375525U (en) * | 2019-09-24 | 2020-04-21 | 浙江毅力汽车空调有限公司 | New energy automobile pressure sensor intelligence calibration and sieving mechanism |
-
2021
- 2021-08-18 CN CN202110951117.8A patent/CN113753226A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342365A (en) * | 1989-07-11 | 1991-02-22 | Kayaba Ind Co Ltd | Brake system for aircraft |
| US20120175943A1 (en) * | 2009-06-29 | 2012-07-12 | Jan Grebe | Pressure control valve arrangement having an eccentrically mounted double magnet |
| DE102009060562A1 (en) * | 2009-12-23 | 2011-06-30 | Deutsches Zentrum für Luft- und Raumfahrt e.V., 51147 | Device for guiding stabilization of a vehicle |
| CN102602382A (en) * | 2011-04-14 | 2012-07-25 | 中南大学 | Anti-skid braking controller for airplane |
| CN103640693A (en) * | 2013-12-02 | 2014-03-19 | 西安航空制动科技有限公司 | DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system |
| CN105523179A (en) * | 2014-09-28 | 2016-04-27 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft brake pressure feedback regulation system and aircraft brake pressure feedback regulation method |
| CN210375525U (en) * | 2019-09-24 | 2020-04-21 | 浙江毅力汽车空调有限公司 | New energy automobile pressure sensor intelligence calibration and sieving mechanism |
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