CN104290905B - A kind of lifting airscrew electric brake system - Google Patents
A kind of lifting airscrew electric brake system Download PDFInfo
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- CN104290905B CN104290905B CN201410424780.2A CN201410424780A CN104290905B CN 104290905 B CN104290905 B CN 104290905B CN 201410424780 A CN201410424780 A CN 201410424780A CN 104290905 B CN104290905 B CN 104290905B
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Abstract
A kind of lifting airscrew electric brake system, belong to rotatable parts braking technology field.It is characterized in that, after system receives the brake signal that driver gives, sensor collecting temperature signal, rotor tach signal and brake torque feedback signal, DSP control unit is input to jointly after conditioning unit and A/D conversions, DSP control unit carries out comprehensive analysis to signal, and controlling the pwm signal and motor steering signal of brshless DC motor all the way according to control strategy output, pwm signal is transformed into six road pwm signals of suitable brshless DC motor work by CPLD logic array units all the way.The weight and volume of present system is greatly lowered, and stability, security and maintainability also greatly improve.Simultaneously, it is ensured that rotor brake is in optimum Working, and braking quality is greatly improved, and manoeuvrable, man-machine efficacy are good, easily realizes automatic manipulation.
Description
Technical field
The invention belongs to the manipulation technology field of rotatable parts braking, and being braked more particularly to a kind of lifting airscrew is
System.
Background technology
Lifting airscrew brake gear is rotor is quickly stalled and can be kept at rotor after helicopter engine cut-offs
In a kind of mechanism of inactive state, the mechanism widely used hydraulic brake system and mechanical brake system at present.
The shortcomings of big weight, low-response being present and be difficult to safeguard in hydraulic brake system, and the failure of hydraulic unit is not easy to supervise
Survey and hydraulic oil leakage burning equivalent risk be present, have impact on the security of aircraft.And mechanical brake system brake torque is small, operation
Heaviness, it is only applicable to small tonnage helicopter.And said system, to brake torque feedback-less, braking efficiency is low, easily causes helicopter
Dynamic component impacts, and brake shoes and brake disc life-span are relatively low, is difficult to realize modularized design, does not possess real-time detection function, safeguards
Property is poor.
With the development of Helicopter Technology, especially requirement of the civil helicopter market to lifting airscrew brake system is got over
Come higher, both needed its simple in construction, manoeuvrable, in light weight, man-machine efficacy is good, it is also necessary to possess high economy, reliability,
Security, ease for maintenance and automatic handling etc..
The content of the invention
The purpose of the present invention：
A kind of lifting airscrew electric brake system is designed, makes its simple in construction, manoeuvrable, in light weight, braking quality
It is good, man-machine efficacy is good, and economy, reliability, security, maintainability and automatic handling be largely increased.
Technical scheme：
A kind of lifting airscrew electric brake system, including brake controller, braking action device, torque sensor, temperature
Spend sensor, speed probe and lifting airscrew etc..
Torque signal during torque sensor collection brake, speed probe gather the tach signal of rotor, TEMP
Device gathers the temperature value of brake disc.
Brake controller includes：Brake torque conditioning unit, rotor rotating speed conditioning unit, DSP control unit, CPLD logics
Display unit, isolation circuit unit, power drive unit and current acquisition unit and over-current protecting unit etc..
Brake torque adjustment unit：The brake torque signal gathered to sensor is amplified, filtered, and is then fed into A/D
Collecting unit, by signal output to DSP control unit after A/D conversions；
Rotor rotating speed conditioning unit：The rotor tach signal gathered to sensor is amplified, filtered, and is then fed into A/D
Collecting unit, by signal output to DSP control unit after A/D conversions；
DSP control unit receives brake instruction, sets according to rotor rotating speed, braking torque, the change of brake temperature and in advance
Fixed braking time progress is analysis integrated, and corresponding brake weight is calculated by PI classic controls algorithm, exports brushless for controlling
The pwm signal all the way and motor steering signal of direct current generator simultaneously input CPLD；
The pwm signal all the way that CPLD logic arrays unit sends over DSP is brushless straight into being used in by logical conversion
The road pwm signal of motor six is flowed, avoids and six road pwm signal problems is directly transmitted by DSP, the software and hardware of preciousness has been saved for DSP
Resource.In addition, CPLD logic arrays unit also has motor positive and inverse control defencive function.
Power drive unit：The logic level of CPLD logic devices output is generally inadequate to motor operation, therefore need pair
It, which carries out power amplification, can just make motor normal work.
Braking action device includes：Brake disc, brake shoes, brshless DC motor and actuation mechanism.Brshless DC motor connects
After receiving electric signal, start to rotate and drive connected actuation mechanism, driving brake block makees straight reciprocating motion, realizes and stops
The clamping and release operation of hull.
To prevent power drive unit from producing interference to digital circuits section, isolation circuit is employed to digital circuits section
Isolated with power driving circuit part.
Temperature, rotor rotating speed and torque signals are fed back to DSP central control units comprehensive analysis and calculated by three kinds of sensors
Go out to draw that corresponding brake weight is exported to electric actuator, make dynamic to brake torque according to different service conditions and adjust,
Ensure that rotor brake is in optimum Working, braking quality is greatly improved, the system weight is light, manoeuvrable, people
Machine effect is good, easily realizes automatic manipulation.
The key point of the present invention：
1. instead of water brake mechanism using electric actuator, cancel the hydraulic packages such as hydraulic pipeline, pump, the weight of system
Amount and volume are greatly lowered, and stability, security and maintainability also greatly improve；
2. braking quality is improved using advanced polynary feedback brake controller, can be according to different service conditions to brake
Torque is made dynamic and adjusted, it is ensured that rotor brake is in optimum Working, and braking quality is greatly improved, the system weight
Amount is light, manoeuvrable, man-machine efficacy are good, easily realizes automatic manipulation.
Beneficial effects of the present invention：
The present invention instead of water brake mechanism using electric actuator, it is not necessary to the liquid such as any hydraulic pipeline, pump and valve
Component is pressed, the danger of hydraulic oil leakage and burning is avoided, improves security, alleviate the weight of helicopter；Brake torque,
Brake temperature feedback control system significantly improves braking quality, reduces brake process and machine upper-part is impacted, and improves rotor and stops
Car brake shoes and brake disc access times, reduce maintenance cost；The modularization and real-time detection function of system substantially increase directly
The maintainability of the machine of liter；The braking action frequency and braking efficiency of electric brake system are higher than hydraulic brake system, and easily realize certainly
Dynamic manipulation.
Brief description of the drawings
Fig. 1 is lifting airscrew electric brake system composition structure chart
Fig. 2 is lifting airscrew electric brake system control block figure
Fig. 3 is lifting airscrew rotating speed, brake torque conditioning unit circuit diagram
Fig. 4 lifting airscrews brake fundamental diagram
Embodiment
A kind of lifting airscrew electric brake system, including brake controller, braking action device, torque sensor, temperature
Spend sensor, speed probe and lifting airscrew etc..
Torque signal during torque sensor collection brake, speed probe gather the tach signal of rotor, TEMP
Device gathers the temperature value of brake disc.
Brake controller includes：Brake torque conditioning unit, rotor rotating speed conditioning unit, DSP control unit, CPLD logics
Display unit, isolation circuit unit, power drive unit and current acquisition unit and over-current protecting unit etc..
Brake torque adjustment unit：The brake torque signal gathered to sensor is amplified, filtered, and is then fed into A/D
Collecting unit, by signal output to DSP control unit after A/D conversions；
Rotor rotating speed conditioning unit：The rotor tach signal gathered to sensor is amplified, filtered, and is then fed into A/D
Collecting unit, by signal output to DSP control unit after A/D conversions；
DSP control unit receives brake instruction, sets according to rotor rotating speed, braking torque, the change of brake temperature and in advance
Fixed braking time progress is analysis integrated, and corresponding brake weight is calculated by PI classic controls algorithm, exports brushless for controlling
The pwm signal all the way and motor steering signal of direct current generator simultaneously input CPLD；
The pwm signal all the way that CPLD logic arrays unit sends over DSP is brushless straight into being used in by logical conversion
The road pwm signal of motor six is flowed, avoids and six road pwm signal problems is directly transmitted by DSP, the software and hardware of preciousness has been saved for DSP
Resource.In addition, CPLD logic arrays unit also has motor positive and inverse control defencive function.
Power drive unit：The logic level of CPLD logic devices output is generally inadequate to motor operation, therefore need pair
It, which carries out power amplification, can just make motor normal work.
Braking action device includes：Brake disc, brake shoes, brshless DC motor and actuation mechanism.Brshless DC motor connects
After receiving electric signal, start to rotate and drive connected actuation mechanism, driving brake block makees straight reciprocating motion, realizes and stops
The clamping and release operation of hull.
To prevent power drive unit from producing interference to digital circuits section, isolation circuit is employed to digital circuits section
Isolated with power driving circuit part.
Temperature, rotor rotating speed and torque signals are fed back to DSP central control units comprehensive analysis and calculated by three kinds of sensors
Go out to draw that corresponding brake weight is exported to electric actuator, make dynamic to brake torque according to different service conditions and adjust,
Ensure that rotor brake is in optimum Working, braking quality is greatly improved, the system weight is light, manoeuvrable, people
Machine effect is good, easily realizes automatic manipulation.
Claims (6)
1. a kind of lifting airscrew electric brake system, it is characterised in that including brake controller, braking action device, moment of torsion
Sensor, temperature sensor, speed probe and lifting airscrew, after system receives the brake signal that driver gives, sensing
Device collecting temperature signal, rotor tach signal and brake torque feedback signal, inputted jointly after conditioning unit and A/D conversions
To DSP control unit, DSP control unit carries out comprehensive analysis to signal, and is controlled all the way according to control strategy output brushless straight
The pwm signal and motor steering signal of motor are flowed, pwm signal is transformed into suitable brushless straight by CPLD logic array units all the way
Flow six road pwm signals of motor work；The logic level of logic array unit output is by power drive unit to motor control
Signal carries out power amplification, meanwhile, to prevent power drive unit from producing interference to digital circuits section, employ isolation circuit
Unit is isolated to digital circuits section and power driving circuit part；Motor driving actuation mechanism motion, realizes brake
Clamping and release operation on disk, to reach rotor brake functional requirement；
The DSP control unit receives brake instruction, sets according to rotor rotating speed, braking torque, the change of brake temperature and in advance
Fixed braking time progress is analysis integrated, and corresponding brake weight is calculated by PI classic controls algorithm, exports brushless for controlling
The pwm signal all the way and motor steering signal of direct current generator simultaneously input CPLD；
The power drive unit：The logic level of CPLD logic devices output is generally inadequate to motor operation, therefore need pair
It, which carries out power amplification, can just make motor normal work；
The braking action device includes：Brake disc, brake shoes, brshless DC motor and actuation mechanism, brshless DC motor connect
After receiving electric signal, start to rotate and drive connected actuation mechanism, driving brake block makees straight reciprocating motion, realizes and stops
The clamping and release operation of hull.
2. lifting airscrew electric brake system according to claim 1, it is characterised in that the torque sensor collection
Torque signal during brake, speed probe gather the tach signal of rotor, and temperature sensor gathers the temperature value of brake disc.
3. lifting airscrew electric brake system according to claim 1, it is characterised in that the brake controller bag
Include：Brake torque conditioning unit, rotor rotating speed conditioning unit, DSP control unit, CPLD logic arrays unit, isolation circuit list
Member, power drive unit and current acquisition unit and over-current protecting unit.
4. lifting airscrew electric brake system according to claim 3, it is characterised in that the brake torque conditioning is single
Member：The brake torque signal gathered to sensor is amplified, filtered, and is then fed into A/D collecting units, will letter after A/D conversions
Number output is to DSP control unit.
5. lifting airscrew electric brake system according to claim 3, it is characterised in that the rotor rotating speed conditioning is single
Member：The rotor tach signal gathered to sensor is amplified, filtered, and is then fed into A/D collecting units, will letter after A/D conversions
Number output is to DSP control unit.
6. lifting airscrew electric brake system according to claim 1, it is characterised in that the CPLD logic arrays list
The member pwm signal all the way that sends over DSP by logical conversion into being used in the road pwm signal of brshless DC motor six, in addition,
CPLD logic arrays unit also has motor positive and inverse control defencive function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424780.2A CN104290905B (en) | 2014-08-26 | 2014-08-26 | A kind of lifting airscrew electric brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424780.2A CN104290905B (en) | 2014-08-26 | 2014-08-26 | A kind of lifting airscrew electric brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104290905A CN104290905A (en) | 2015-01-21 |
| CN104290905B true CN104290905B (en) | 2018-02-23 |
Family
ID=52310910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410424780.2A Active CN104290905B (en) | 2014-08-26 | 2014-08-26 | A kind of lifting airscrew electric brake system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104290905B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564634B (en) * | 2016-01-11 | 2019-09-10 | 北京中科遥数信息技术有限公司 | A kind of device and its control method locking unmanned plane propeller |
| EP3372495B1 (en) | 2017-03-09 | 2019-10-23 | Ratier-Figeac SAS | Brake device |
| CN108082533B (en) * | 2017-12-03 | 2021-02-26 | 中国直升机设计研究所 | Helicopter ground combined test bed rotor wing braking method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6193464B1 (en) * | 1998-12-02 | 2001-02-27 | Mcdonnell Douglas Helicopter Company, | Active brake control for rotor/wing aircraft |
| DE102007017107B4 (en) * | 2007-04-10 | 2010-08-26 | Eurocopter Deutschland Gmbh | Rotor brake for a rotary wing aircraft |
| EP2003054B1 (en) * | 2007-06-15 | 2009-12-16 | Saab Ab | Device for supplying electricity |
| CN101497370A (en) * | 2009-01-14 | 2009-08-05 | 陈焕龙 | Helicopter without empennage |
| CN101973396B (en) * | 2010-10-08 | 2013-05-01 | 陈焕龙 | Rapid helicopter |
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2014
- 2014-08-26 CN CN201410424780.2A patent/CN104290905B/en active Active
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| Publication number | Publication date |
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| CN104290905A (en) | 2015-01-21 |
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