CN207676174U - A kind of steering gear control system - Google Patents
A kind of steering gear control system Download PDFInfo
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- CN207676174U CN207676174U CN201721918707.6U CN201721918707U CN207676174U CN 207676174 U CN207676174 U CN 207676174U CN 201721918707 U CN201721918707 U CN 201721918707U CN 207676174 U CN207676174 U CN 207676174U
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- steering gear
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Abstract
A kind of steering gear control system is disclosed in the utility model, including control unit, current detecting unit, rotation speed detection unit, position detection unit and electric-motor drive unit, the electric-motor drive unit includes photoelectric isolating circuit, driving circuit and inverter circuit, the photoelectric isolating circuit connects control unit, photoelectric isolating circuit, driving circuit and inverter circuit are sequentially connected, the inverter circuit is connected to driving motor, driving motor is connected to deceleration mechanism, the current detecting unit includes current detection circuit, the rotation speed detection unit uses photoelectric encoder, the position detection unit includes position detecting circuit.System realizes the control to steering engine using fpga chip as control core, and system associated peripheral circuits are simple in structure, and system stability is higher, by being accurately controlled to steering engine to steering engine electric current, rotating speed, the real-time acquisition of position and feedback control, realization.
Description
Technical field
The utility model is related to servos control technical field, more particularly to a kind of steering gear control system.
Background technology
Aircraft steering engine is the important executing agency for realizing the movement of the posture changings such as aircraft pitching, yaw, rolling, property
The guidance precision of aircraft can be had decisive impact.Aircraft steering engine can be divided into electronic rudder according to the used energy
Machine, pneumatic servo etc., steering engine are receiving the composite control signal from control system, are overcoming Aerodynamic binge moment and bending force
Square drives control surface deflection, generates control force, the flight attitude of aircraft is controlled, to control aircraft according to scheduled track
Flight.
Device receives the instruction that ground is sent to the control principle of steering engine in order to control, and control steering engine drives rudder face rotation, simultaneously will
Real-time rudder face position feedback realizes the real-time amendment of angle of rudder reflection to controller, to achieve the purpose that control aircraft flight track.
Utility model content
The purpose of this utility model is to provide a kind of steering gear control system, realization accurately controls steering engine.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
A kind of steering gear control system, including control unit, current detecting unit, rotation speed detection unit, position detection unit
And electric-motor drive unit, the electric-motor drive unit include photoelectric isolating circuit, driving circuit and inverter circuit, the photoelectricity every
Control unit is connected from circuit, photoelectric isolating circuit, driving circuit and inverter circuit are sequentially connected, and the inverter circuit is connected to
Driving motor, driving motor are connected to deceleration mechanism, and the current detecting unit includes current detection circuit, the current detecting
Circuit connects inverter circuit, and current detection circuit is connected to control unit, the Rotating speed measring list by an A/D conversion circuit
Member uses photoelectric encoder, photoelectric encoder to be separately connected driving motor and control unit, and the position detection unit includes position
Detection circuit is set, position detecting circuit is connected to deceleration mechanism, and position detecting circuit connects control list by an A/D conversion circuits
Member.
In above-mentioned technical proposal, further, described control unit is to be formed using fpga chip and its peripheral circuit
Minimum system.
In above-mentioned technical proposal, further, the photoelectric isolating circuit is using TLP521 photoelectrical coupler and its outside
Enclose the circuit of circuit composition.
In above-mentioned technical proposal, further, the driving circuit uses IR2130 three-phase bridge driving chips, described inverse
Become circuit as the three-phase bridge circuit that is formed using 6 MOSFET elements, 6 MOSFET elements are connected respectively to driving core
H01, H02, H03, L01, L02 and L03 output pin of piece.
In above-mentioned technical proposal, further, the driving circuit is also associated with current foldback circuit, the overcurrent protection
Circuit includes the resistance R1 and adjustable resistance R2 for being connected to driving chip ITRIP pins, adjustable resistance other end ground connection.
In above-mentioned technical proposal, further, the position detecting circuit is to be connected with operational amplifier using potentiometer
The output end of the circuit of composition, the potentiometer is connected to the noninverting input of operational amplifier.
In above-mentioned technical proposal, further, described control unit is connected with serial port unit, and the serial port unit includes string
Port communications circuit, control unit are connected to PC machine by serial communication circuit, and the serial communication circuit is serially led to using RS422
Believe interface circuit.
Advantageous effect possessed by the utility model：
The system realizes the control to steering engine, the structure letter of system associated peripheral circuits using fpga chip as control core
Single, system stability is higher, by steering engine electric current, rotating speed, the real-time acquisition of position and feedback control, realizing the essence to steering engine
Really control；Serial port unit is arranged simultaneously can facilitate the dependence test operation realized to control system.
Description of the drawings
Fig. 1 is Tthe utility model system structure diagram.
Fig. 2 is photoelectric isolating circuit circuit diagram in the utility model.
Fig. 3 is driving circuit and inverter circuit circuit diagram in the utility model.
Fig. 4 is current detection circuit circuit diagram in the utility model.
Fig. 5 is position detecting circuit circuit diagram in the utility model.
Specific implementation mode
The utility model is further described in the following with reference to the drawings and specific embodiments.
Such as Fig. 1, a kind of steering gear control system of the present embodiment, including control unit, current detecting unit, Rotating speed measring list
Member, position detection unit and electric-motor drive unit.Current detecting unit is adopted for detecting driving motor start-up circuit by electric current
Collection and negative-feedback realize that the quick startup to driving motor controls.Rotation speed detection unit for realizing control driving motor rotating speed
Fluctuation, ensures the rotation precision of driving motor, by acquiring the rotating speed of driving motor, and feeds back to control as the amount of being conditioned
System processed realizes the closed-loop control to driving motor rotating speed.Position detection unit, will by acquiring steering engine control surface deflection angle signal
It feeds back to control unit, realizes detecting and controlling in real time to steering engine control surface deflection angle.
In the present embodiment, control unit is the minimum system formed using fpga chip and its peripheral circuit.Specifically, originally
Using EP1C12 type fpga chips in embodiment, EP1C12Q240C8N chips are specifically used.Its peripheral circuit includes power supply
It is each in system that PKV3325PI78 power supply chips and three-terminal regulator chip, which can be used, in circuit and reset circuit, wherein power circuit
Unit provides operating voltage.For reset circuit for the reset in upper reset and fpga chip operational process, which is conventional
Circuit is not specifically described its structure here.
Specifically, electric-motor drive unit includes photoelectric isolating circuit, driving circuit and inverter circuit, and photoelectric isolating circuit connects
Control unit is connect, photoelectric isolating circuit, driving circuit and inverter circuit are sequentially connected, and inverter circuit is connected to driving motor, are driven
Dynamic motor is connected to deceleration mechanism.
In the present embodiment, as shown in Fig. 2, photoelectric isolating circuit is using TLP521 photoelectrical couplers and its peripheral circuit group
At circuit.There are prodigious gaps in terms of voltage and power with power drive signal for the pwm signal of fpga chip output, need
The signal of the two is isolated, prevents high voltage from being interfered to FPGA signals.
If Fig. 3 is driving circuit and inverter circuit circuit diagram, driving circuit uses IR2130 three-phase bridge driving chips, inverse
Become circuit as the three-phase bridge circuit that is formed using 6 MOSFET elements, 6 MOSFET elements are connected respectively to driving core
H01, H02, H03, L01, L02 and L03 output pin of piece.IR2130 chips can control 6 MOSFET elements conducting and
Shutdown sequence, the output of HO1, HO2, HO3 output pin control three MOSFET elements of upper half-bridge of three phase inverter bridge respectively
The turn-on and turn-off of H1, H2, H3, the output of LO1, LO2, LO3 output pin control the lower half-bridge three of three phase inverter bridge respectively
The turn-on and turn-off of MOSFET element L1, L2, L3, by the logical drive signal of fpga chip output motor forward and backward, through work(
It is realized after rate amplification and driving motor rotation direction is accurately controlled.Such as Fig. 3, which is also associated with overcurrent protection electricity
Road, current foldback circuit include the resistance R1 and adjustable resistance R2 for being connected to driving chip ITRIP pins, the adjustable resistance other end
Ground connection.The ITRIP pins of driving chip are over-current detection input terminal can make driving when it detects that electric current is excessive in circuit
The drive signal of chip output becomes low level, and then MOSFET is made all to end, and plays the role of overcurrent protection.
In the present embodiment, current detecting unit includes current detection circuit, and current detection circuit connects inverter circuit, electric current
Detection circuit is connected to control unit by an A/D conversion circuit.As shown in figure 4, by operational amplifier by the letter of detection
It is sent to A/D conversion circuits after number being amplified processing.
In the present embodiment, rotation speed detection unit uses photoelectric encoder, photoelectric encoder to be separately connected driving motor and control
Unit processed.
In this implementation, position detection unit includes position detecting circuit, and position detecting circuit is connected to deceleration mechanism, position
Detection circuit connects control unit by an A/D conversion circuits.Position detecting circuit is to be connected using potentiometer and operational amplifier
The circuit of composition is connect, the output end of potentiometer is connected to the noninverting input of operational amplifier.Specifically, potentiometer uses
The voltage division signal of WDJ22A precision conductive plastic potentiometers, potentiometer output inputs the progress of A/D conversion circuits after TL084 amplifies
Conversion, position detecting circuit are as shown in Figure 5.
In the present embodiment, A/D conversion circuits use AD7865-1 conversion chips.
Control unit is connected with serial port unit, and serial port unit includes serial communication circuit, and control unit passes through serial communication
Circuit is connected to PC machine, and serial communication circuit uses RS422 serial communication interface circuits, in realization and test system between PC machine
Communication.
The description and the appended drawings of the utility model are considered illustrative and not restrictive, on the utility model basis
On, for those skilled in the art according to disclosed technology contents, not needing performing creative labour can be to some of technology
Feature makes some and replaces and deform, within the protection scope of the present utility model.
Claims (7)
1. a kind of steering gear control system, it is characterised in that：Including control unit, current detecting unit, rotation speed detection unit, position
Detection unit and electric-motor drive unit, the electric-motor drive unit include photoelectric isolating circuit, driving circuit and inverter circuit, institute
Photoelectric isolating circuit connection control unit is stated, photoelectric isolating circuit, driving circuit and inverter circuit are sequentially connected, the inversion electricity
Road is connected to driving motor, and driving motor is connected to deceleration mechanism, and the current detecting unit includes current detection circuit, described
Current detection circuit connects inverter circuit, and current detection circuit is connected to control unit by an A/D conversion circuit, described turn
Fast detection unit uses photoelectric encoder, photoelectric encoder to be separately connected driving motor and control unit, the position testing unit
Member includes position detecting circuit, and position detecting circuit is connected to deceleration mechanism, and position detecting circuit is connected by an A/D conversion circuits
Connect control unit.
2. steering gear control system according to claim 1, it is characterised in that：Described control unit be using fpga chip and
The minimum system of its peripheral circuit composition.
3. steering gear control system according to claim 1, it is characterised in that：The photoelectric isolating circuit is using TLP521
The circuit of photoelectrical coupler and its peripheral circuit composition.
4. steering gear control system according to claim 1, it is characterised in that：The driving circuit uses IR2130 three-phase bridges
Formula driving chip, the inverter circuit are the three-phase bridge circuit formed using 6 MOSFET elements, 6 MOSFET members
Part is connected respectively to H01, H02, H03, L01, L02 and L03 output pin of driving chip.
5. steering gear control system according to claim 4, it is characterised in that：The driving circuit is also associated with overcurrent protection
Circuit, the current foldback circuit include the resistance R1 and adjustable resistance R2 for being connected to driving chip ITRIP pins, adjustable resistance
The other end is grounded.
6. steering gear control system according to claim 1, it is characterised in that：The position detecting circuit is using potentiometer
The circuit of composition is connected with operational amplifier, the output end of the potentiometer is connected to the noninverting input of operational amplifier.
7. steering gear control system according to claim 1, it is characterised in that：Described control unit is connected with serial port unit,
The serial port unit includes serial communication circuit, and control unit is connected to PC machine, the serial communication by serial communication circuit
Circuit uses RS422 serial communication interface circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721918707.6U CN207676174U (en) | 2017-12-29 | 2017-12-29 | A kind of steering gear control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721918707.6U CN207676174U (en) | 2017-12-29 | 2017-12-29 | A kind of steering gear control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676174U true CN207676174U (en) | 2018-07-31 |
Family
ID=62972151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721918707.6U Active CN207676174U (en) | 2017-12-29 | 2017-12-29 | A kind of steering gear control system |
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| CN (1) | CN207676174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683532A (en) * | 2019-01-08 | 2019-04-26 | 上海应用技术大学 | A kind of steering engine and more steering engine controllers and unmanned aerial vehicle control system |
-
2017
- 2017-12-29 CN CN201721918707.6U patent/CN207676174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683532A (en) * | 2019-01-08 | 2019-04-26 | 上海应用技术大学 | A kind of steering engine and more steering engine controllers and unmanned aerial vehicle control system |
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