CN2898807Y - Throttle executer - Google Patents
Throttle executer Download PDFInfo
- Publication number
- CN2898807Y CN2898807Y CN 200620113604 CN200620113604U CN2898807Y CN 2898807 Y CN2898807 Y CN 2898807Y CN 200620113604 CN200620113604 CN 200620113604 CN 200620113604 U CN200620113604 U CN 200620113604U CN 2898807 Y CN2898807 Y CN 2898807Y
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- CN
- China
- Prior art keywords
- controller
- signal
- throttle
- data acquisition
- servomotor
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- Expired - Lifetime
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Abstract
The utility model relates to a throttle executer, which comprises a controller (1), a data acquisition conditioning unit (2), a servo controller (4) and a servo motor (3), wherein, the controller (1) receives the parameters for controlling the turndown ratio of the throttle inputted by user, the data acquisition conditioning unit (2) acquires the parameters for controlling the turndown ratio of the throttle from the controller (1) and converts the parameters into the pulse number signal and direction signal, the servo controller (4) receives the pulse number signal and direction signal from the data acquisition conditioning unit (2) and generates the signal to control the rotation of the servo motor (3), the servo motor (3) turns a corresponding angle and direction according to the signal generated by the servo controller; the servo controller (4) receives the position feedback signal from the servo motor (3) and adjusts the rotation of servo motor (3) based on the feedback signal.
Description
Technical field
The utility model relates to a kind of throttle actuator, relates to a kind of throttle actuator that the control throttle is opened in the engine performance test stand TT﹠C system that is applied in particular.
Background technology
The throttle actuator of engine performance test stand uses torque motor mostly now, and it is adjustable to adopt the angular displacement sensor FEEDBACK CONTROL to realize that throttle is opened.And there is following shortcoming in torque motor: it is slow to add/slow down (comprising starting/stop) dynamic response; No dynamic response repeatability; The temperature increase rate that works long hours is fast, can't adapt to working long hours of stand; Along with there is the demagnetization phenomenon in the growth of service time, exportable like this moment of torsion is just had a greatly reduced quality, and must consider that the periodic replacement motor just can address this problem.And adopt angular displacement sensor to do FEEDBACK CONTROL, and the location poor repeatability, local adjust (zero point and full scale point) exists very serious shake and overshoot phenomenon, can't realize the static precisely location of throttle.
In some transmission field, need realize high-precision position control to controlled device, and realize that a pacing items of Accurate Position Control is to need high-precision topworks.When pulse equivalency and speed of feed all require when too high, traditional torque motor, stepper motor will face a series of problems, and it is big to implement difficulty, and cost is higher.And the AC servo motor drive technology that rose in recent years can obtain high position control accuracy with lower cost.
The utility model content
That the utility model overcomes that torque motor in the throttle actuator exists is repeated low, dynamic response is slow, temperature increase rate is fast, reliability is low and position control inaccurate, the accurate inadequately defective in angular displacement sensor location, provides that a kind of reliability and repeatability height, dynamic adjustments are good, polarization precision throttle actuator accurately.
The utility model provides a kind of throttle actuator, and this actuator comprises: controller, data acquisition conditioning device, it is characterized in that, and also comprise servo controller and servomotor; Wherein, described controller receives the parameter of the control accelerator open degree of user's input, the parameter that the collection of described data acquisition conditioning device comes from the control accelerator open degree of described controller also is converted into pulse number signal and direction signal with this parameter, described servo controller receives pulse signal and the direction signal that comes from described data acquisition conditioning device, generate the signal that the control servomotor rotates, described servomotor rotates corresponding angle and direction according to the signal that servo controller generates; Described servo controller receives position feed back signal that comes from described servomotor and the rotation of adjusting servomotor according to this feedback signal.
Control the unlatching of throttle owing to adopt servomotor in the throttle actuator provided by the utility model, and servomotor itself has the high temperature that opens/stops transport the characteristic of changeing, motor dynamically to raise can not to surpass 50 degree, stator not to use the characteristic of permanent-magnet structure and stator, rotor winding and does not have demagnetization phenomenon, servomotor self to have scrambler as feedback unit, and feedback unit determines that the precision and the reliability of FEEDBACK CONTROL, polarization are higher.Two kinds of mode of operations that throttle actuator provided by the utility model has: position control mode and zeroing pattern.Wherein, described position control mode has ensured the static precisely location and the better dynamic adjusting of throttle reliably; The zeroing pattern can realize the pre-tensioning of throttle drag-line, to reach the repeatability at zero point of each action.Through every evidence throttle actuator provided by the utility model of long-term engine pedestal have that dynamic response is good, good reproducibility, service time is long, the polarization precision is high characteristics, can satisfy the requirement of the every test of engine pedestal fully.This throttle actuator can both use in the door-plate formula throttle valve structure of dynamic adjustments.
Description of drawings
Fig. 1 is the structured flowchart of the throttle actuator that provides of the utility model;
The throttle actuator that Fig. 2 the utility model provides is applied to the connection diagram that the control throttle is opened in the engine performance test stand TT﹠C system.
Embodiment
Be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model provides a kind of throttle actuator, and this actuator comprises: controller 1, data acquisition conditioning device 2, servo controller 4 and servomotor 3; Wherein, described controller 1 receives the parameter of control accelerator open degree, described data acquisition conditioning device 2 is electrically connected with described controller 1, the parameter that collection comes from the control accelerator open degree of described controller 1 also is converted into pulse number signal and direction signal with this parameter, described servo controller 4 is electrically connected with described data acquisition conditioning device 2, reception comes from the pulse number signal and the direction signal of described data acquisition conditioning device 2, generate the signal that control servomotor 3 rotates, described servomotor 3 is electrically connected with described servo controller 4, and the signal that generates according to this servo controller rotates corresponding angle and direction; Described servo controller 4 receives position feed back signal that comes from described servomotor 3 and the rotation of adjusting servomotor 3 according to this feedback signal.
Wherein, the control signal of described controller 1 input is the aperture of throttle, and this aperture also comprises the direction that throttle is opened except the size that comprises the throttle unlatching, for example can represent forward rotation 30 degree with "+30 ", and " 30 " represent backward rotation.Described controller 1 can be single-chip microcomputer, computing machine, preferably has the computer of PCI slot, and is connected to data acquisition conditioning device 2 by pci bus.Because pci bus has and the processor independence, expanded range of application; Support automatic configuration feature, have standard configuration function widely and unique plug and play; Overlapping burst operation pattern has reduced stand-by period of data transmission, has improved the characteristics of data transmission rate.
Described data acquisition conditioning device 2 is preferably the multifunctional data acquisition card with pci bus, the PCI-6221 multifunctional data acquisition card of NI company for example, this 6221 capture card has modulus sampling rate, 16 road analog input channels, 2 tunnel pulse I/O passages and the 8 way word I/O passages of 12 sampling precisions, 250k, cheap, performance good, can satisfy the requirement of motor car engine test bench for performance test experiments fully.
This aperture is converted into pulse number signal and direction signal through algorithm, the rotational angle of described pulse number signal controlling servomotor 3, the rotation direction of described direction signal control servomotor 3.The transfer algorithm that accelerator open degree is converted to pulse number is known for those skilled in the art, and for example: for the servomotor of the scrambler with 17 bits, servomotor 3 rotates 360 degree, and data acquisition conditioning device 2 will export 2
17Individual pulse, general servo-drive system all are the lattice of 4 pulses corresponding to the scrambler numeral, so 4 pulse servomotors of every output 3 just rotate
Degree, and the like, so according to the angle of the required rotation of servomotor, just the parameter that is used to control accelerator open degree according to slave controller 1 input just can converse the pulse number that the data acquisition conditioning device will be exported.Can utilize the difference of level to control the direction of servomotor, for example, when being input as "+", described controller data is gathered conditioning device 2 can make servomotor 3 clockwise rotate with the output signal indication servo controller 4 of high level, when being input as "-", make servomotor 3 rotate counterclockwise with low level output signal indication servo controller 4.
As shown in Figure 2, controller 1 links to each other with 6221 multifunctional data acquisition cards by the PCI slot, the pulse number signal that described 6221 data collecting cards obtain outputs to " PULSE " port of servo controller 4 by port " Countl ", simultaneously the opening direction signal is outputed to " SIGN " port of clothes controller 4 from the DIO mouth, control described servo controller 4, thereby realize the precisely really output of position of servomotor 3.The fixing pulse number of wherein said output is the speed that the height of the frequency of output pulse determines the running speed of servomotor 3, promptly realizes the speed that the throttle unlatching is regulated.
The angle that described servomotor 3 usefulness are rotated is controlled the unlatching of throttle, be preferably AC servo motor, this AC servo motor 3 comprises the scrambler (not shown) so that position feed back signal to be provided, as the exert oneself AC servo motor of full stroke of max. output torque 7NM and response time 200ms.
Under the preferable case, described scrambler is an incremental-rotating coder.
Described servo controller 4 is drivers of servomotor 3, except reception comes from the signal of described data acquisition conditioning device 2, also receives the position feed back signal of the scrambler that comes from described servomotor 3.Under the preferable case, described scrambler is an incremental-rotating coder, because the incremental encoder simple structure is easy to grasp, mean lifetime is long, the resolution height, and practical application is more.Servomotor 3 and servo controller 4 cooperate mainly power and electric current, rated speed and nominal torque according to motor.Generally speaking servo controller 4 all is according to the supporting use of the power of servomotor 3, and to those skilled in the art, selecting to be fit to supporting servo controller 4 and servomotor 3 is general knowledge, does not need creative work.
Under the preferable case, the throttle actuator that the utility model provides further comprises the accelerator open degree sensor (not shown), the actual aperture of this sensor sensing throttle and the actual accelerator open degree that will sense send to described controller 1, at this moment, described controller 1 further comprises comparer, the parameter of the control accelerator open degree of butt joint user input and the actual aperture of throttle of accelerator open degree sensor sensing compare, and comparative result sent to data acquisition conditioning device 2, data acquisition conditioning device 2 is converted into the two difference the direction letter signal of corresponding pulse number again.This comparer can be realized by the mode of hardware or software.Described accelerator open degree sensor is at the accelerator open degree sensor that can be existing any kind of.
The throttle actuator that the utility model provides also comprises mode selector 5, is used to select the control model of described servo controller 4, thereby further controls the work of servomotor 4.As shown in Figure 2, the input end of described mode selector 5 links to each other with servo controller 4 with data acquisition conditioning device 2 respectively with output terminal, specifically, the input end of described mode selector 5 comprises PULSE and two ports of SIGN, is connected to the Countl port and the DIO port of data acquisition conditioning device 2; The output port of this servo controller 4 comprises PUSLE output port, SIGN output port and control model output port, export pulse number signal, opening direction signal and control model signal respectively, these three signals are input to the corresponding port (PULSE port, SIGN port and control model port) on the described servo controller 4 respectively.
According to the utility model, described mode selector 5 comprises a control button (position control button), zero-setting button, zeroing arrow button and zeroing start button, these buttons all are connected with the input end of described servo controller 4, more particularly, be connected with control model port on the described servo controller 4.Wherein, institute's rheme control button and zero-setting button can be switches that can switch, thereby select control model by toggle switch, the zeroing arrow button is when having set the zeroing pattern, select the zeroing direction of servo controller 4, when configuring above-mentioned functions, press the zeroing start button, then can produce a voltage signal, thereby control the zeroing of described servo controller 4 by described control model port.It will be appreciated that the realization of above-mentioned functions need be done corresponding the change to servo controller 4, has both needed the subroutine or the circuit of the voltage that can discern these buttons in the servo controller.To those skilled in the art, the function of setting or changing servo controller 4 as required is general technical operations, does not need creative work, therefore no longer describes in detail here.
Under position control mode, servo controller 4 control servomotors 3 are in position control mode, and throttle actuator is in accurate position control, can carry out the high dynamic adjustments of throttle.Described servo controller 4 is preferably full output torque protection and reaches opening/stopping property of good servomotor 3.The pulsed frequency of the output port output of the counter by data acquisition conditioning device 2 and the controlling party of DIO mouth line output to, be input to servo controller 4, be input to the angle of number of pulse signals decision servomotor 3 rotations of servo controller 4, the direction that direction signal decision servomotor 3 rotates.These two groups of signals can be controlled the operation under the position control mode of servomotor 3 fully, thereby the position control that realizes servomotor 3 is accurately exported.
Under the zeroing pattern, be to use the speed control in the servo controller 4 to add torsion protection function.When the needs air throttle returns to zero, switch to speed control mode.Be unlikely to counter-rotating excessively when adopting the torsion protection function assurance zeroing under each pattern simultaneously.Be specially the direction of selecting zeroing according to concrete installation environment, promptly the sense of rotation of Xian Chang servomotor 3 is restarted/is stopped to return to zero and controls the pre-tensioning that realizes the throttle drag-line.
Under the preferable case, the mode selector 5 that the utility model provides further comprises the modulate circuit (not shown), and the pulse signal that comes from data acquisition conditioning device 2 is amplified and the level shaping, and the pulse signal behind the output Shaping is to servo controller 4.
The throttle actuator that the utility model provides is a complete two level closed loop control system.Upper strata rank closed loop is the angle that the needs of controller 1 output rotate; Lower floor's closed loop is that promptly incremental-rotating coder constitutes by the feedback unit scrambler of servo controller 4 with servomotor 3, can guarantee the angle that the solar term door-plate rotates reliably by the reformed motor rotational angle of continuous correction.
Introduce the course of work below according to throttle actuator of the present utility model.
The concrete workflow of the throttle actuator that the utility model provides is: when throttle actuator of the present invention is started working, described servomotor 3 is in the position feedback state of scrambler always, controller 1 is with pre-set gasoline throttle angle output, i.e. output comprises the number of pulse and the data of direction signal; Then, controller 1 reads in the actual angle of throttle, wherein, and can be by being installed in the actual angle that proving installation on the throttle reads in throttle, for example accelerator open degree sensor or the like; Controller 1 compares setting value of importing and the throttle actual angle that reads in and judges, if the two equates that then controller 1 stops input; Otherwise, controller 1 calculates the angle and direction that needs rotation, export to servo controller 4 together, this moment, servo controller 4 read the real-world operation angle of servomotor 3 from scrambler, the actual angle of set-point and servomotor 3 is compared and judge, if the two equates that then servo controller stops control, adjusting and the control to throttle this time finishes; If do not wait, then servo controller 4 calculates servo specified rate, servomotor 3 is controlled, thereby realization is to precisely definite position of throttle again.
Claims (9)
1. throttle actuator, this actuator comprises: controller (1), data acquisition conditioning device (2) is characterized in that this actuator also comprises servo controller (4) and servomotor (3); Wherein, described controller (1) receives the parameter of the control accelerator open degree of user's input, the parameter that described data acquisition conditioning device (2) collection comes from the control accelerator open degree of described controller (1) also is converted into pulse number signal and direction signal with this parameter, described servo controller (4) receives pulse number signal and the direction signal that comes from described data acquisition conditioning device (2), generate the signal that control servomotor (3) rotates, described servomotor (3) rotates corresponding angle and direction according to the signal that servo controller generates; Described servo controller (4) receives position feed back signal that comes from described servomotor (3) and the rotation of adjusting servomotor (3) according to this feedback signal.
2. throttle actuator according to claim 1, wherein, described controller (1) is for having the computer of PCI slot.
3. throttle actuator according to claim 2, wherein, described data acquisition conditioning device (2) is the PCI-6221 multifunctional data acquisition card.
4. throttle actuator according to claim 1, wherein, described servomotor (3) is an AC servo motor, this AC servo motor comprises scrambler, to provide position feed back signal to described servo controller (4).
5. throttle actuator according to claim 4, wherein, described scrambler is an incremental-rotating coder.
6. throttle actuator according to claim 1, wherein, this actuator further comprises accelerator open degree sensor, the actual aperture of this sensor sensing throttle and the actual accelerator open degree that will sense send to described controller (1), described controller (1) further comprises comparer, the parameter of the control accelerator open degree of user input and the actual aperture of throttle of accelerator open degree sensor sensing are compared, and comparative result is sent to data acquisition conditioning device (2).
7. throttle actuator according to claim 1, wherein, this throttle actuator also comprises mode selector (5), the input and output of described mode selector (5) link to each other with servo controller (4) with data acquisition conditioning device (2) respectively.
8. throttle actuator according to claim 7, wherein, described mode selector (5) comprises a control button, zero-setting button, zeroing arrow button and zeroing start button, these buttons all are connected with the input end of described servo controller (4).
9. throttle actuator according to claim 7, wherein, described mode selector (5) comprises modulate circuit, and the pulse signal that comes from data acquisition conditioning device (2) is amplified and the level shaping, and the pulse signal behind the output Shaping is to servo controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113604 CN2898807Y (en) | 2006-04-30 | 2006-04-30 | Throttle executer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113604 CN2898807Y (en) | 2006-04-30 | 2006-04-30 | Throttle executer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898807Y true CN2898807Y (en) | 2007-05-09 |
Family
ID=38074142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620113604 Expired - Lifetime CN2898807Y (en) | 2006-04-30 | 2006-04-30 | Throttle executer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898807Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169055A (en) * | 2010-12-31 | 2011-08-31 | 潍柴动力股份有限公司 | Jack horse measuring and controlling device, measuring and controlling system and method for engine |
| CN103090083A (en) * | 2013-01-18 | 2013-05-08 | 陕西科技大学 | Closed-loop high-precision proportional valve |
| CN108867748A (en) * | 2018-06-29 | 2018-11-23 | 徐州徐工挖掘机械有限公司 | A kind of throttle calibration control method suitable for excavator |
-
2006
- 2006-04-30 CN CN 200620113604 patent/CN2898807Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169055A (en) * | 2010-12-31 | 2011-08-31 | 潍柴动力股份有限公司 | Jack horse measuring and controlling device, measuring and controlling system and method for engine |
| CN103090083A (en) * | 2013-01-18 | 2013-05-08 | 陕西科技大学 | Closed-loop high-precision proportional valve |
| CN103090083B (en) * | 2013-01-18 | 2014-11-12 | 陕西科技大学 | Closed-loop high-precision proportional valve |
| CN108867748A (en) * | 2018-06-29 | 2018-11-23 | 徐州徐工挖掘机械有限公司 | A kind of throttle calibration control method suitable for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |