CN111044900A - Novel steering wheel test platform - Google Patents
Novel steering wheel test platform Download PDFInfo
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- CN111044900A CN111044900A CN201911284215.XA CN201911284215A CN111044900A CN 111044900 A CN111044900 A CN 111044900A CN 201911284215 A CN201911284215 A CN 201911284215A CN 111044900 A CN111044900 A CN 111044900A
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000012545 processing Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 238000012552 review Methods 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
Abstract
The invention discloses a novel steering engine test platform, which comprises: the upper computer, the motion control box and the motor driving module box are connected in sequence; the motion control box is connected with a sensor system of the steering engine to be tested; the motor driving module box is connected with a motor and an encoder of the steering engine to be tested; the upper computer is used for sending instructions, receiving data and displaying test data. The test platform carries out man-machine interaction by using the upper computer, can be compatible with various programming languages to carry out software program development, and is simple, convenient and flexible to operate and small in occupied space. In addition, the test platform can meet the requirements of real-time performance, programmability, multi-axis control, convenience in expanding channels and the like of tests. The modular method is adopted, the performance of the EHA can be tested, the performance of the EMA can also be tested, the testing efficiency is high, and the platform universality is high.
Description
Technical Field
The invention relates to the technical field of servo actuators, in particular to a novel steering engine test platform.
Background
The steering engine is an important component of a flight control system and is also a position servo element of an aircraft, and the steering engine has the functions of overcoming complicated air pneumatic load, converting a control instruction into a deflection angle of a control surface and further realizing attitude control of the aircraft under the condition of load, so that the flight quality and safety of the aircraft are directly influenced by the quality of the working performance of the steering engine.
As the carrying capacity requirements of aircraft continue to increase, the power output requirements of the required servo actuation system also increase. At present, a high-Power servo actuating system of an aircraft is developing from a traditional hydraulic valve control mode to a Power electric transmission mode, and compared with the traditional hydraulic valve control actuating system, the Power By Wire (PBW) actuating system has the advantages of high efficiency, high reliability and convenience for later maintenance. In many aerospace applications, it has become a necessary trend for power electro-pneumatic actuation systems to replace conventional hydraulic valve-controlled actuation systems. Because of its outstanding advantages, it has a great deal of applications in other fields, such as ships in the sea, civil engineering machinery and equipment, etc., and the power electric transmission actuating system has wide application range and great development potential.
The power electric transmission system is more complete than a hydraulic servo system, and the content is more abundant, which is particularly represented by different core components. There are two main forms of power Electro-Mechanical actuators, Electro-hydrostatic actuators (EHA) and Electro-Mechanical actuators (EMA). Unlike a hydraulic servo system, the EHA controls the speed of a motor by using an electronic power unit, so as to change the output pressure and flow rate of a pump and finally realize the adjustment of the actuating displacement. Compared with the EHA, the EMA has only a mechanical structure inside and does not have a hydraulic circuit, so that the EMA has the advantages of simple and compact structure, high efficiency, easy maintenance and the like.
The output flow of the hydraulic pump can be changed by adjusting the inclination angle of a swash plate and also can be changed by adjusting the rotating speed of a main shaft, and the EHA can be divided into three types according to the change mode of the flow: the Variable-displacement electro-hydrostatic actuating system comprises a Fixed-displacement Variable-speed electro-hydrostatic actuating system (EHA-FPVM), a Variable-displacement Fixed-speed electro-hydrostatic actuating system (EHA-VPFM), and a Variable-displacement Variable-speed electro-hydrostatic actuating system (EHA-VPVM).
The performance test is particularly important for the designed high-performance novel steering engine. Because novel steering wheel is different with current steering wheel structure, the steering wheel test experiment platform that has at present not only the size is heavy, and area is great, and the wiring is comparatively complicated, can't satisfy the test demand of novel steering wheel. For accomplishing the original paper and the system capability test of novel steering wheel smoothly, it is very important to design one set of efficiency of software testing height, the commonality is strong.
Disclosure of Invention
The invention aims to provide a novel steering engine test platform which can test a novel steering engine consisting of an EHA and an EMA, and belongs to an electro-hydrostatic actuator with variable displacement and fixed rotating speed. The novel steering engine test platform can test the performance of the EHA and the performance of the EMA, and is high in test efficiency and strong in platform universality.
The embodiment of the invention provides a novel steering engine test platform, which comprises: the upper computer, the motion control box and the motor driving module box are connected in sequence;
the motion control box is connected with a sensor system of the steering engine to be tested;
the motor driving module box is connected with a motor and an encoder of the steering engine to be tested;
the upper computer is used for sending instructions, receiving data and displaying test data.
Further, the motion control box includes: the motion control central processing unit, the I/O board card, the information acquisition board card and the power supply module;
the motion control central processing unit is used for receiving the instruction sent by the upper computer and feeding back test data to the upper computer;
the information acquisition board card is connected with a sensor system of the steering engine to be tested and acquires data of various sensors; the sensor system includes: the device comprises a rotary transformer, a displacement sensor, a pressure sensor, a liquid level sensor and a temperature sensor;
the motion control central processing unit is connected with the motor driving module box through the I/O board card and is used for outputting a motor control instruction and acquiring feedback information of an encoder;
the motion control central processing unit is connected with the electromagnetic valve of the steering engine to be tested through the I/O board card and is used for controlling a mode valve;
the power supply module is integrated in the motion control box and uniformly supplies power to the motion control box.
Furthermore, the motion control central processing unit takes a control chip as a core and is connected with the upper computer through RS232 or Ethernet to realize communication.
Further, a motor driving module and an adapter plate are arranged in the motor driving module box;
strong current and weak current are isolated in the motor driving module box, so that mutual interference is prevented;
the patch cord coming out of the motor driving module box is connected to a motor of a steering engine to be tested;
and the encoder arranged on the motor feeds back a speed signal to the motor driving module box and then feeds back the speed signal to the motion control central processor on the motion control box.
Further, the motion control box and the motor driving module box are integrated in the control cabinet;
a switch indicator lamp, a power supply interface and a plurality of aviation socket interfaces are arranged on the outer side of the control cabinet; the power interface is used for connecting a 220V power supply; the plurality of aviation socket interfaces are respectively as follows:
the information acquisition board card is connected with the sensor system of the steering engine to be tested;
the motor driving module box is connected with a motor connecting interface of the steering engine to be tested;
the motor driving module box is connected with an encoder connecting interface of the steering engine to be tested;
the I/O board card is connected with an electromagnetic valve of the steering engine to be tested through an interface;
the control cabinet bottom plate is also provided with a lockable pulley.
The novel steering engine test platform provided by the embodiment of the invention adopts a modularized means, and has strong universality and wide testable range. The upper computer is used for man-machine interaction, multiple program languages can be compatible for software program development, the operation is simple, convenient and flexible, and the occupied space is small. . The requirements of real-time performance, programmability, multi-axis control, convenience for expanding channels and the like of the test can be met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic connection diagram of a novel steering engine test platform provided by an embodiment of the invention.
Fig. 2 is a block diagram of a motion control box according to an embodiment of the present invention.
Fig. 3 is a schematic view of the overall structure of the novel steering engine test platform provided by the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, the novel steering engine test platform provided by the embodiment of the invention comprises an upper computer 1, a motion control box 2 and a motor driving module box 3 which are connected in sequence; wherein: the motion control box 2 is connected with a sensor system of a steering engine to be tested; the motor driving module box 3 is connected with a motor and an encoder of a steering engine to be tested; the upper computer 1 is used for sending instructions, receiving data and displaying test data.
As shown in fig. 2, the motion control box 2 includes: the motion control central processing unit 21, the I/O board 22, the information acquisition board 23 and the power supply module 24; the motion control central processing unit 21 is used for receiving the instruction sent by the upper computer 1 and feeding back the test data to the upper computer; the information acquisition board card 23 is connected with a sensor system of the steering engine to be tested and acquires data of various sensors; the sensor system includes: the device comprises a rotary transformer, a displacement sensor, a pressure sensor, a liquid level sensor and a temperature sensor;
the motion control central processing unit 21 is connected with the motor drive module box 3 through an I/O board card 22 and is used for outputting a motor control instruction and acquiring feedback information of the encoder;
the motion control central processing unit 21 is connected with an electromagnetic valve of a steering engine to be tested through an I/O board card 22 and is used for controlling a mode valve; the power supply module 24 is integrated in the motion control box 2 and uniformly supplies power to the motion control box.
In the embodiment, the upper computer is in communication connection with the motion control box through the Ethernet, so that the sending of commands and the feedback of data are realized, and the real-time performance of data transmission is effectively ensured. And the lead wire of the motion control box is connected to the motor driving module box.
The motor driving module box is internally provided with a motor driving module and a patch panel, and a patch cord coming out of the motor driving module box is connected to a motor of a steering engine to be tested. The encoder arranged on the motor feeds back a speed signal to the motor driving module box and then feeds back the speed signal to the motion control central processor on the motion control box through the I/O board card. .
In the specific connection process, all related connecting wires are made into cables and covered with a shielding layer, and an aviation socket and an aviation plug are used at the connection part, so that the electromagnetic interference is reduced. And sending an instruction to the steering engine to be tested on the upper computer, and displaying the working state of the current steering engine on the upper computer. One part of the upper computer compiling the motor motion control program is completed on the programming software of the motion control central processing unit, and the other part of the upper computer developing the control algorithm on the debugging software of the driver; the upper computer can realize the functions of sending commands, observing signals and data and the like.
The novel steering engine test platform provided by the embodiment of the invention adopts a modularized means, and has strong universality and wide testable range. The upper computer is used for man-machine interaction, can be compatible with various programming languages for software program development, and is simple, convenient and flexible to operate and small in occupied space. The requirements of real-time performance, programmability, multi-axis control, convenience for expanding channels and the like of the test can be met.
Further, the motion control central processing unit 21 takes a control chip as a core, and is in communication connection with the upper computer 1 through RS232 or ethernet. The control system with the modular structure can meet the requirements of real-time property, programmability, multi-axis control, convenience for expanding channels and the like of measurement and control. Different modules can respectively realize acquisition of multi-path rotary variable signals and control of a plurality of channel motors; controlling a multi-way mode valve; collecting multi-channel analog signals, such as signals collected by pressure, temperature, liquid level and other sensors in an analog quantity mode; and acquiring SSI, LVDT or other types of displacement sensor signals and the like. Therefore, the controller can meet the requirements of multi-channel signal acquisition and subsequent redundancy actuation system expansion in a novel steering engine test platform.
Further, for miniaturization, the motion control box 2 and the motor drive module box 3 can be integrated into one control cabinet; the control cabinet adopts 220V power supply to facilitate connection with a power supply.
A switch indicator lamp, a power supply interface and a plurality of aviation socket interfaces are arranged on the outer side of the control cabinet; for example, an aviation socket connected with the outside is arranged on the side face of the cabinet body, and the cable of the actuating system can be conveniently connected through plugging and unplugging the aviation socket. The reserved interfaces are, for example:
1) the interface is used for connecting the information acquisition board card with a sensor system of the steering engine to be tested;
2) the motor driving module box is connected with a motor connecting interface of a steering engine to be tested;
3) the motor driving module box is connected with an encoder connecting interface of a steering engine to be tested;
4) the I/O board card is connected with an electromagnetic valve of a steering engine to be tested through an interface;
the aviation socket interface arranged on the outer side of the cabinet body can be conveniently connected with a cable of an actuating system.
The cabinet control cabinet can adopt a black box mode, is highly integrated, and can carry out various operations and tests only by electrifying and connecting an actuating system and a human-computer interface (an upper computer) and opening debugging software.
In addition, in order to move conveniently, a pulley can be arranged on the bottom plate of the control cabinet, and the control cabinet can have a locking function; the single person can easily move and can also be locked to avoid random sliding.
For example, the human-computer interface of the upper computer comprises an initialization interface, real-time display, parameter setting, data analysis and the like.
Wherein: the initialization interface is an initial panel for a tester to open the human-computer interface, is used for detecting the connection state between the human-computer interface and the motion control box, and can select a switching signal channel to test a plurality of channels. The real-time display interface is a main interface for testers during working, can set test tasks to be executed by the measurement and control system, simultaneously displays data acquired by each sensor in real time in a display window, and can select multiple paths of different signals in the window so as to facilitate monitoring of the running state of the system. After the test task at every turn, the motion control box can automatically transmit the data collected by the test back to the upper computer and store the data in the disk, and the data are checked or exported again after the test is finished. Various parameters of the control algorithm are adjusted in the parameter setting interface or the current control parameters are returned from the control box, and in addition, the method can also be used for realizing various control algorithms to verify the control effect of the control algorithms. The data processing interface can review previous test results and can process the data to better analyze the test results.
In order to meet the requirements of real-time performance, programmability, multi-axis control, convenience for expanding channels and the like of the measurement and control system, the measurement and control system with a modular structure is adopted. The structure of the device takes a control chip as a core and adopts RS232 or Ethernet to communicate with an upper computer. Different modules can respectively realize acquisition of multi-path rotary variable signals and control of a plurality of channel motors; controlling a multi-way mode valve; collecting multi-channel analog signals, such as signals collected by pressure, temperature, liquid level and other sensors in an analog quantity mode; and acquiring SSI, LVDT or other types of displacement sensor signals and the like. Therefore, the test platform can meet the requirements of the measurement and control system on multi-channel signal acquisition and subsequent redundancy actuation system expansion.
According to the novel steering engine test platform provided by the embodiment of the invention, the overall structure of the test platform is shown in fig. 3 according to the composition and the functions of the parts. The human-computer interface sends instructions and processes data, sensor signals acquired by the information acquisition card are finally displayed in the human-computer interface, feedback signals are used for controlling an algorithm to generate control quantity in the motion control central processing unit, the motor is controlled to move, and then the discharge capacity of the pump is changed to drive the load to move. In addition, a printer is connected with the computer, and can print displayed images or data tables stored in the computer in a human-computer interface.
This novel steering wheel test platform, the spare part of mainly used test novel steering wheel and entire system's performance. Such as:
1. a variable pump is adopted in the electromechanical hydrostatic actuating system as a pump source of a hydraulic part, and the performance of the variable pump is tested in an experiment.
2. And (4) carrying out a rotation speed experiment on the motor, inputting a rotation speed instruction, and testing the step response of the rotation speed instruction.
3. In order to test the quick response performance of the swash plate, a step signal and a sine signal are respectively set on a swash plate inclination angle ring, and the response data result is recorded in real time.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides a novel steering wheel test platform which characterized in that includes: the upper computer (1), the motion control box (2) and the motor driving module box (3) are connected in sequence;
the motion control box (2) is connected with a sensor system of a steering engine to be tested;
the motor driving module box (3) is connected with a motor and an encoder of the steering engine to be tested;
the upper computer (1) is used for sending instructions, receiving data and displaying test data.
2. A novel steering engine test platform as claimed in claim 1, wherein the motion control box (2) comprises: the motion control system comprises a motion control central processing unit (21), an I/O board card (22), an information acquisition board card (23) and a power supply module (24);
the motion control central processing unit is used for receiving the instruction sent by the upper computer and feeding back test data to the upper computer;
the information acquisition board card (23) is connected with a sensor system of the steering engine to be tested and acquires data of various sensors; the sensor system includes: the device comprises a rotary transformer, a displacement sensor, a pressure sensor, a liquid level sensor and a temperature sensor;
the motion control central processing unit (21) is connected with the motor drive module box (3) through the I/O board card (22) and is used for outputting a motor control instruction and acquiring feedback information of an encoder;
the motion control central processing unit (21) is connected with the electromagnetic valve of the steering engine to be tested through the I/O board card (22) and is used for controlling a mode valve;
the power supply module (24) is integrated in the motion control box (2) and uniformly supplies power to the motion control box.
3. The novel steering engine test platform of claim 2, wherein the motion control central processing unit (21) is connected with the upper computer (1) through RS232 or Ethernet to realize communication with a control chip as a core.
4. The novel steering engine test platform of claim 1, wherein a motor drive module and an adapter plate are arranged in the motor drive module box (3);
strong current and weak current are separated in the motor driving module box (3) to prevent mutual interference;
the patch cord coming out of the motor driving module box (3) is connected to a motor of a steering engine to be tested;
and the encoder arranged on the motor feeds back a speed signal to the motor driving module box (3) and then feeds back the speed signal to the motion control central processing unit (21) on the motion control box (2).
5. A novel steering engine test platform according to any one of claims 1 to 4, characterized in that the motion control box (2) and the motor drive module box (3) are integrated in a control cabinet;
a switch indicator lamp, a power supply interface and a plurality of aviation socket interfaces are arranged on the outer side of the control cabinet; the power interface is used for connecting a 220V power supply; the plurality of aviation socket interfaces are respectively as follows:
the information acquisition board card (23) is connected with the sensor system of the steering engine to be tested;
the motor driving module box (3) is connected with a motor connecting interface of the steering engine to be tested;
the motor driving module box (3) is connected with an encoder of the steering engine to be tested through an interface;
the I/O board card (22) is connected with an electromagnetic valve of the steering engine to be tested through an interface;
the control cabinet bottom plate is also provided with a lockable pulley.
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| CN201911284215.XA CN111044900A (en) | 2019-12-13 | 2019-12-13 | Novel steering wheel test platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911284215.XA CN111044900A (en) | 2019-12-13 | 2019-12-13 | Novel steering wheel test platform |
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| CN111044900A true CN111044900A (en) | 2020-04-21 |
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| CN111855184A (en) * | 2020-07-29 | 2020-10-30 | 北京航空航天大学 | Friction disc friction performance testing device and testing method thereof |
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Application publication date: 20200421 |
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