CN101982650A - Electric execution device - Google Patents
Electric execution device Download PDFInfo
- Publication number
- CN101982650A CN101982650A CN2010105196119A CN201010519611A CN101982650A CN 101982650 A CN101982650 A CN 101982650A CN 2010105196119 A CN2010105196119 A CN 2010105196119A CN 201010519611 A CN201010519611 A CN 201010519611A CN 101982650 A CN101982650 A CN 101982650A
- Authority
- CN
- China
- Prior art keywords
- angle
- output shaft
- unit
- performance device
- electric performance
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention provides an electric execution device. The device comprises an output shaft, an angle measurement component, a control component and a drive component, wherein the angle measurement component measures the current angle of the output shaft by a non-contact mode; the control component is connected with the angle measurement component, compares the current angle of the output shaft detected by the angle measurement component with an angle to be adjusted, and calculates the controlled variable in real time according to the deviation value to generate a drive signal; and the drive component is connected with the control component, and drives the output shaft to rotate to the angle to be adjusted according to the drive signal of the control component.
Description
Technical field
The present invention relates to the control technique field of actuator, particularly a kind of electric performance device that is used for variable geometry turbocharger.
Background technique
Turbosupercharger is a kind of air compressor, increases air inflow by pressurized air.The waste gas inertia impulsive force that turbosupercharger utilizes motor to discharge promotes the turbine in the turbine chamber, and turbine drives coaxial impeller again, and the air that the impeller force feed is sent here by the air-strainer pipeline makes it supercharging and enters cylinder.When engine speed speeds, the waste gas velocity of discharge and secondary speed also speed synchronously, and impeller just compresses more air and enters cylinder, and the pressure of air and density increase the more fuel that can burn, corresponding increase fuel quantity and adjust the rotating speed of motor can increase the output power of motor.
The patent disclosure that existing application number is 01805931.7, the applying date is 2001.3.2 a kind of electric performance device, as shown in Figure 1.This electric performance device not only needs to measure the rotating speed of turbo-charger shafts, also need to measure by temperature transducer and pressure transducer etc. the temperature and pressure of the outlet of compressor gateway, turbo machine gateway and EGR flow control valve by velocity transducer 46.Therefore, need sample lot of data, structure of present as can be seen electric performance device is very complicated, thereby causes cost very high.
In addition, the control unit in the existing electric performance device adopts potentiometer as the position feedback element more, and carries out closed loop control with servoamplifier as power amplification element.Since the intrinsic defect of potentiometer, easy to wear, shortcomings such as working life short, anti-environment capacity is poor, zero drift is serious, complex structure, assembling difficulty that above-mentioned electric performance device exists.And servoamplifier is operated in linear region, and power loss is big, and it is very serious to generate heat.These problems have restricted all that electric performance device needs high temperature resistant, long lifetime in turbosupercharger etc., the application of highly reliable service behaviour occasion.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency.At existing electric performance device, proposed a kind of improved electric performance device especially, realized non-contact measurement, avoided mechanical wear and heat conducting problem output corner, and simple in structure, be convenient to produce and install.
For achieving the above object, the present invention proposes a kind of electric performance device, comprising: output shaft; Angle measurement assembly, described angle measurement assembly are measured the current angle of described output shaft by contactless mode; Control unit, described control unit links to each other with described angle measurement assembly, described control unit compares according to the current angle and the angle to be adjusted of the described output shaft of described angle measurement component detection, and in real time according to departure compute control amount to produce drive signal; And driven unit, described driven unit links to each other with described control unit, according to the described output shaft of the drive of described control unit to turn to described angle to be adjusted.
In one embodiment of the invention, described angle measurement assembly further comprises: magnetic, described magnetic are fixed on the described output shaft; The magnetoresistive transducer corresponding with described magnetic, described magnetoresistive transducer obtains the electrical signal output corresponding with the current angle of described output shaft according to the position of described magnetic.
In one embodiment of the invention, the induction direction of described magnetoresistive transducer and described output shaft are perpendicular.Preferably, described magnetoresistive transducer is KMZ241.
In other embodiments of the invention, described angle measurement assembly also can be capacitance type angle sensor or inductosyn formula angle transducer.
In one embodiment of the invention, magnetic guiding cycle is installed, thereby makes the magnetic line of force form the closed-loop path, and isolated external magnetic field disturbs, increase the magnetoresistive transducer measuring accuracy in the periphery of described angle measurement assembly.
In one embodiment of the invention, described control unit further comprises: the signal condition unit, described signal condition unit links to each other with described magnetoresistive transducer, described signal condition unit carries out pretreatment to the output signal of described magnetoresistive transducer, output and the corresponding voltage signal of the current angle of described output shaft; Input unit, described input unit receive from the angle to be adjusted of electronic control unit ECU and adjust instruction; Computing unit, described computing unit links to each other with input unit with described signal condition unit respectively, described computing unit compares current angle of described output shaft and angle to be adjusted, and real-time calculation deviation controlled quentity controlled variable is to export the pulse-width-modulating signal of described Deviation Control amount correspondence; With pulse width modulated power amplification unit, described pulse width modulated power amplification unit links to each other with described computing unit, and described pulse width modulated power amplification unit carries out power amplification to described pulse-width-modulating signal, to obtain the drive signal of Deviation Control amount correspondence.
In one embodiment of the invention, described driven unit comprises: motor, and described motor links to each other with described control unit, rotates under the driving of described drive signal; With adjust assembly, described adjustment assembly links to each other with described motor, according to the described output shaft of the controlling and driving of described motor to turn to described angle to be adjusted.
In one embodiment of the invention, described adjustment assembly further comprises: first gear reducer, and described first gear reducer is subjected to described motor driving; Second gear reducer, described second gear reducer and described first gear reducer are meshing with each other; Worm screw, described worm screw is coaxial with described second gear reducer; And turbine, described turbine is coaxial with described output shaft, described worm screw and described turbine are meshing with each other, by driving described turbine so that described output shaft turns to described angle to be adjusted.
In one embodiment of the invention, this electric performance device also comprises: rocking arm, described rocking arm is driven by described output shaft.
In one embodiment of the invention; described control unit further comprises: over-current detection and protective circuit; described over-current detection links to each other with described pulse width modulated power amplification unit with protective circuit, and described over-current detection and protective circuit are carried out over-current detection and protection.
The electric performance device of the embodiment of the invention has the following advantages:
(1) directly detects the current angle of output shaft, simplified the structure of electric performance device, reduced cost of production, and be convenient to install and produce.
(2) adopt magnetoresistive transducer and magnetic as the angle measurement assembly,, realized the non-contact measurement of output corner between the two without any machinery or be electrically connected.Adopt above-mentioned non-contact measurement, avoided mechanical wear and heat conducting problem.And because non-contact measurement can also carry out sealing and reinforcing to circuit board, electric performance device of the present invention so just can be used in the scene of sealing or flame proof requirement.
(3) adopt motor as power source, need not external air source or vacuum source, easy to use and driving moment is big; Adopt the turbine and worm retarder, make output shaft have auto-lock function, the pressurized machine flow does not have driving current consumption when constant, more energy-conservation.Simultaneously, it is out of control or close situation can not occur valve during the system accident power-off, more safe and reliable.
(4) adopt digitizing one chip microcomputer technology, make the collection, processing of signal and realize the high performance of control algorithm flexibility and reliability that becomes, the actual output corner scope and the output characteristics of change angle actuating device can be set by software easily, and can realize the control logic that some are special, satisfy different control needs.
(5) electric performance device of the embodiment of the invention has applicable surface very widely, except that being used for the control of variable geometry turbocharger Flow-rate adjustment, also can satisfy of the user demand of multiple industries such as automobile, mine, chemical industry, oil, metallurgy, water treatment, Aero-Space to the angle final controlling element.And by the rocker-arm link device, also the angle stroke motion can be converted to displacement movement after, also can be used in the drive controlling of linear course actuators such as backguy throttle, push-and-pull valve.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the electric performance device structural drawing of prior art;
Fig. 2 is the electric performance device structural drawing of the embodiment of the invention; With
Fig. 3 is the electric performance device structural drawing of one embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
As shown in Figure 2, be the electric performance device structural drawing of the embodiment of the invention.This electric performance device comprises output shaft 110, angle measurement assembly 120, control unit 130 and driven unit 140.Wherein, angle measurement assembly 120 is measured the current angle of output shaft 110 by contactless mode.Like this, the present invention directly measures the current angle of output shaft 110 with respect to prior art, thereby can greatly reduce the complexity of the structure of electric performance device.Further preferably, the present invention adopts contactless mode to measure the current angle of output shaft 110, thereby can avoid the problem of mechanical wear and heat conduction, also can carry out sealing and reinforcing to be suitable for having the scene of sealing or flame proof requirement to circuit board in addition.In one embodiment of the invention, angle measurement assembly 120 can be a magnetoresistive transducer, also can be capacitance type angle sensor.Certainly those skilled in the art also can select other angle transducers, but are based on purpose of the present invention, and reaching other angle transducers that are equal to purpose all should be included within protection scope of the present invention.Control unit 130 links to each other with angle measurement assembly 120, and control unit 130 compares according to the current angle and the angle to be adjusted of the output shaft 110 that angle measurement assembly 120 detects, and real-time calculation deviation controlled quentity controlled variable is to produce the corresponding driving signal.Wherein, in one embodiment of the invention, described control unit 130 is produced and be sent to angle to be adjusted by ECU (electronic control unit).Driven unit 140 links to each other with control unit 130, driven unit 140 according to the drive output shaft 110 of control unit 130 to turn to angle to be adjusted.
Understand in order to have clearly the embodiment of the invention; below will the present invention be described in detail in the mode of specific embodiment; but need to prove that following examples only are optimal way of the present invention; be not that the present invention only can realize by following examples; those skilled in the art's above-mentioned thought according to the present invention is made modification or the variation that is equal to following examples, and these all should be included within protection scope of the present invention.Following examples are that example is described with the magnetoresistive transducer.
As shown in Figure 3, be the electric performance device structural drawing of one embodiment of the invention.This electric performance device comprises rocking arm 150 that output shaft 110, output shaft 110 drive, be fixed on magnetic 121 on the output shaft 110, the magnetoresistive transducer 122 corresponding with magnetic 121, wherein, magnetic 121 and the magnetoresistive transducer 122 common magnetoresistive angle-sensor configuration of forming, magnetoresistive transducer 122 is according to the position output electrical signal corresponding with the current angle of output shaft of magnetic 121.In one embodiment of the invention, the induction direction and the output shaft 110 of magnetoresistive transducer 122 are perpendicular, to being fixed on the output shaft 110 and magnetic direction is responded to perpendicular to the direction of the magnetic 121 of output shaft 110.Preferably, the model of magnetoresistive transducer 122 can be KMZ241, and those skilled in the art also can select the magnetoresistive transducer of other types certainly.Preferably, magnetic guiding cycle is installed, thereby makes the magnetic line of force form the closed-loop path, and isolated external magnetic field disturbs, improve the measuring accuracy and the stability of magnetoresistive transducer 122 in the periphery of magnetoresistive transducer 122.
This electric performance device also comprises signal condition unit 131, input unit 132, computing unit 133 and the pulse width modulated power amplification unit 134 that links to each other with magnetoresistive transducer 122.Wherein, the output signal of the 131 pairs of magnetoresistive transducers 122 in signal condition unit is carried out pretreatment, output and the corresponding voltage signal of the current angle of described output shaft.Input unit 132 receives from the angle to be adjusted of ECU and adjusts instruction, and wherein how calculating problem such as angle to be adjusted about ECU is that prior art does not repeat them here.Computing unit 133 links to each other with input unit 132 with signal condition unit 121 respectively, and computing unit 133 compares the current angle and the angle to be adjusted of output shaft 110, and real-time calculation deviation controlled quentity controlled variable is with the pulse-width-modulating signal of output bias controlled quentity controlled variable correspondence.Particularly, in one embodiment of the invention, computing unit 133 can adopt anti-triangulo operation to calculate the angle of magnetic direction and magnetoresistive transducer 122 responsive baselines, the i.e. output angle of final controlling element.Computing unit 133 also can adopt independently AD converter and chip microcontroller certainly in other embodiments for being integrated with the single-chip microcomputer of AD converter in embodiments of the present invention, and these all should be included within protection scope of the present invention.Pulse width modulated power amplification unit 134 links to each other with computing unit 133, and the pulse-width-modulating signal of 134 pairs of computing units of pulse width modulated power amplification unit, 133 outputs carries out power amplification, to obtain the drive signal of Deviation Control amount correspondence.
This electric performance device also comprises motor 141, the first gear reducer 142a, the second gear reducer 142b, worm screw 142c and the turbine 142d that is subjected to pulse width modulated power amplification unit 134 controls.Wherein, the first gear reducer 142a is driven by motor 141.The second gear reducer 142b and the first gear reducer 142a are meshing with each other.Worm screw 142c is coaxial with the second gear reducer 142b.Turbine 142d is coaxial with output shaft 110, and worm screw 142c and turbine 142d are meshing with each other, by driving turbine 142d so that output shaft 110 turns to angle to be adjusted.Certainly in other embodiments of the invention, also can adopt other retarders, for example plane table thermoconductivity meter, harmonic gear reducer etc.By the invention enables output shaft 110 to have auto-lock function, therefore when the pressurized machine flow is constant, there is not driving current consumption, thus more energy-conservation.Simultaneously, when system's accident power-off, can not occur inventing situation out of control or that close, thereby further improve Security and reliability.
And, when driven unit 140 drives output shaft 110, computing unit 133 also can continue the to follow up current angle signal of output shaft 110 of magnetoresistive transducer 122 outputs calculates output shaft 110 actual rotational angles, thereby carry out closed loop control, equal input instruction corner until output shaft 110 actual rotational angles, reach and make the final controlling element output angle follow the purpose of instruction angle.
In a preferred embodiment of the invention; this electric performance device also comprises over-current detection and protective circuit 135; over-current detection links to each other with computing unit 133 with pulse width modulated power amplification unit 134 respectively with protective circuit 135; over-current detection and protective circuit 135 are carried out over-current detection and protection; thereby can when faults such as generation stall, short circuit, in time cut off current of electric, guarantee safety.
The electric performance device of the embodiment of the invention has the following advantages:
(1) directly detects the current angle of output shaft, simplified the structure of electric performance device, reduced cost of production, and be convenient to install and produce.
(2) adopt magnetoresistive transducer and magnetic to form the angle measurement assembly,, realized the non-contact measurement of output corner between the two without any machinery or be electrically connected.Adopt above-mentioned non-contact measurement, avoided mechanical wear and heat conducting problem.And because non-contact measurement can also carry out sealing and reinforcing to circuit board, electric performance device of the present invention so just can be used in the scene of sealing or flame proof requirement.
(3) adopt motor as power source, need not external air source or vacuum source, easy to use and driving moment is big; Adopt the turbine and worm retarder, make output shaft have auto-lock function, the pressurized machine flow does not have driving current consumption when constant, more energy-conservation.Simultaneously, it is out of control or close situation can not occur valve during the system accident power-off, more safe and reliable.
(4) adopt digitizing one chip microcomputer technology, make the collection, processing of signal and realize the high performance of control algorithm flexibility and reliability that becomes, the actual output corner scope and the output characteristics of change angle actuating device can be set by software easily, and can realize the control logic that some are special, satisfy different control needs.
(5) electric performance device of the embodiment of the invention has applicable surface very widely, except that being used for the control of variable geometry turbocharger Flow-rate adjustment, also can satisfy of the user demand of multiple industries such as automobile, mine, chemical industry, oil, metallurgy, water treatment, Aero-Space to the angle final controlling element.And by the rocker-arm link device, also the angle stroke motion can be converted to displacement movement after, also can be used in the drive controlling of linear course actuators such as backguy throttle, push-and-pull valve.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiments.
Claims (12)
1. an electric performance device is characterized in that, comprising:
Output shaft;
Angle measurement assembly, described angle measurement assembly are measured the current angle of described output shaft by contactless mode;
Control unit, described control unit links to each other with described angle measurement assembly, described control unit compares according to the current angle and the angle to be adjusted of the described output shaft of described angle measurement component detection, and in real time according to departure compute control amount to produce drive signal; With
Driven unit, described driven unit links to each other with described control unit, according to the described output shaft of the drive of described control unit to turn to described angle to be adjusted.
2. electric performance device as claimed in claim 1 is characterized in that, described angle measurement assembly further comprises:
Magnetic, described magnetic are fixed on the described output shaft;
The magnetoresistive transducer corresponding with described magnetic, described magnetoresistive transducer obtains the electrical signal output corresponding with the current angle of described output shaft according to the position of described magnetic.
3. electric performance device as claimed in claim 2 is characterized in that, the induction direction and the described output shaft of described magnetoresistive transducer are perpendicular.
4. electric performance device as claimed in claim 3 is characterized in that, described magnetoresistive transducer is KMZ241.
5. electric performance device as claimed in claim 1 is characterized in that, described angle measurement assembly is a capacitance type angle sensor.
6. electric performance device as claimed in claim 1 is characterized in that, described angle measurement assembly is an inductosyn formula angle transducer.
7. electric performance device as claimed in claim 2 is characterized in that, in the periphery of described angle measurement assembly magnetic guiding cycle is installed.
8. electric performance device as claimed in claim 2 is characterized in that, described control unit further comprises:
The signal condition unit, described signal condition unit links to each other with described magnetoresistive transducer, and described signal condition unit carries out pretreatment to the current angle signal of the described output shaft that described magnetoresistive transducer obtains;
Input unit, described input unit receive from the angle to be adjusted of electronic control unit ECU and adjust instruction;
Computing unit, described computing unit links to each other with input unit with described signal condition unit respectively, described computing unit compares current angle of described output shaft and angle to be adjusted, and real-time calculation deviation controlled quentity controlled variable is to export the pulse-width-modulating signal of described Deviation Control amount correspondence; With
Pulse width modulated power amplification unit, described pulse width modulated power amplification unit links to each other with described computing unit, and described pulse width modulated power amplification unit carries out power amplification to described pulse-width-modulating signal, to obtain the drive signal of Deviation Control amount correspondence.
9. electric performance device as claimed in claim 1 is characterized in that, described driven unit comprises:
Motor, described motor links to each other with described control unit, rotates under the driving of described drive signal; With
Adjust assembly, described adjustment assembly links to each other with described motor, according to the described output shaft of the controlling and driving of described motor to turn to described angle to be adjusted.
10. electric performance device as claimed in claim 9 is characterized in that, described adjustment assembly further comprises:
First gear reducer, described first gear reducer is subjected to described motor driving;
Second gear reducer, described second gear reducer and described first gear reducer are meshing with each other;
Worm screw, described worm screw is coaxial with described second gear reducer; With
Turbine, described turbine is coaxial with described output shaft, described worm screw and described turbine are meshing with each other, by driving described turbine so that described output shaft turns to described angle to be adjusted.
11. electric performance device as claimed in claim 1 is characterized in that, also comprises:
Rocking arm, described rocking arm is driven by described output shaft.
12. electric performance device as claimed in claim 1 is characterized in that, described control unit further comprises:
Over-current detection and protective circuit, described over-current detection links to each other with described pulse width modulated power amplification unit with protective circuit, and described over-current detection and protective circuit are carried out over-current detection and protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105196119A CN101982650A (en) | 2010-10-19 | 2010-10-19 | Electric execution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105196119A CN101982650A (en) | 2010-10-19 | 2010-10-19 | Electric execution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101982650A true CN101982650A (en) | 2011-03-02 |
Family
ID=43619556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105196119A Pending CN101982650A (en) | 2010-10-19 | 2010-10-19 | Electric execution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982650A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486209A (en) * | 2015-11-27 | 2016-04-13 | 苏州朗高电机有限公司 | Magnetic-resistance resolver precision measuring instrument |
| CN106091918A (en) * | 2016-06-22 | 2016-11-09 | 清华大学 | A kind of dynamic measures the device and method of mechanical transmission clutch collar angular displacement |
| CN106369112A (en) * | 2016-08-31 | 2017-02-01 | 北京维弦科技有限责任公司 | Driving device |
| CN107100716A (en) * | 2014-02-25 | 2017-08-29 | 三菱重工业株式会社 | Booster and ship |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6326781B1 (en) * | 1999-01-11 | 2001-12-04 | Bvr Aero Precision Corp | 360 degree shaft angle sensing and remote indicating system using a two-axis magnetoresistive microcircuit |
| CN1556308A (en) * | 2004-01-07 | 2004-12-22 | 吉林大学 | Variable cross section turbine pressurizer electron control cross section opening executor |
| EP1871002A2 (en) * | 2006-06-22 | 2007-12-26 | Robert Bosch Gmbh | Adjustment drive for adjusting at least one moveable part in a motor vehicle |
| US20100001721A1 (en) * | 2008-07-01 | 2010-01-07 | Niles Co., Ltd | Rotation angle sensor |
| CN201410933Y (en) * | 2009-04-30 | 2010-02-24 | 浙江关西电机有限公司 | Automobile electric windshield wiper |
-
2010
- 2010-10-19 CN CN2010105196119A patent/CN101982650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6326781B1 (en) * | 1999-01-11 | 2001-12-04 | Bvr Aero Precision Corp | 360 degree shaft angle sensing and remote indicating system using a two-axis magnetoresistive microcircuit |
| CN1556308A (en) * | 2004-01-07 | 2004-12-22 | 吉林大学 | Variable cross section turbine pressurizer electron control cross section opening executor |
| EP1871002A2 (en) * | 2006-06-22 | 2007-12-26 | Robert Bosch Gmbh | Adjustment drive for adjusting at least one moveable part in a motor vehicle |
| US20100001721A1 (en) * | 2008-07-01 | 2010-01-07 | Niles Co., Ltd | Rotation angle sensor |
| CN201410933Y (en) * | 2009-04-30 | 2010-02-24 | 浙江关西电机有限公司 | Automobile electric windshield wiper |
Non-Patent Citations (1)
| Title |
|---|
| 《微特电机》 20100831 孟武胜，苗溢文，董蓉 一种新型差动变压器式角位移传感器 第1也第0段引言 5，6 , 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100716A (en) * | 2014-02-25 | 2017-08-29 | 三菱重工业株式会社 | Booster and ship |
| CN107100716B (en) * | 2014-02-25 | 2019-09-17 | 三菱重工业株式会社 | Booster and ship |
| CN105486209A (en) * | 2015-11-27 | 2016-04-13 | 苏州朗高电机有限公司 | Magnetic-resistance resolver precision measuring instrument |
| CN106091918A (en) * | 2016-06-22 | 2016-11-09 | 清华大学 | A kind of dynamic measures the device and method of mechanical transmission clutch collar angular displacement |
| CN106091918B (en) * | 2016-06-22 | 2019-07-02 | 清华大学 | A kind of device and method of dynamic measurement mechanical transmission clutch collar angular displacement |
| CN106369112A (en) * | 2016-08-31 | 2017-02-01 | 北京维弦科技有限责任公司 | Driving device |
| CN106369112B (en) * | 2016-08-31 | 2020-11-20 | 北京一维弦科技有限责任公司 | Drive device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101499753B (en) | Brushless servo control system and driving apparatus based on permanent magnet brushless DC motor | |
| RU2401388C2 (en) | Engine with supercharger (versions) | |
| CN101571723B (en) | High-precision drive and control integration motor | |
| CN101982650A (en) | Electric execution device | |
| CN203773247U (en) | Marine diesel engine governor testing stand | |
| CN101701546A (en) | Sequential turbocharging system anti-surge control device and control method | |
| CN201403064Y (en) | Brushless servo system and driving device based on permanent magnet brushless direct current motor | |
| CN105229275A (en) | There is turbine and the controller thereof of the turbine compound engine of variable load | |
| CN103760777A (en) | Marine diesel engine governor testing stand | |
| CN201818360U (en) | Electric actuating device | |
| CN103437833B (en) | Air inlet guide vane adjusting device | |
| WO2012129749A1 (en) | Air volume calculation system for variable speed or constant speed fan | |
| CN207994965U (en) | A kind of rotary positioning apparatus of double PG controls | |
| CN110594009A (en) | Intelligent cold adjustment device and method for diesel engine | |
| CN102691583B (en) | Constant speed and constant frequence double-closed-loop control system and method for small-power diesel generator | |
| CN104295543A (en) | Hybrid power engineering machine composite motion control method | |
| CN204921057U (en) | VGT control system terminal | |
| CN103174524A (en) | Electronic throttle valve control system | |
| CN207019652U (en) | A kind of valve drive gap measurement apparatus | |
| CN211755909U (en) | System for controlling material flow by using pump speed | |
| CN202560605U (en) | Multistage compressor control system | |
| CN202026269U (en) | Controller for automobile direct-current brushless electric fuel pump without position sensor | |
| EP3236042B1 (en) | Supercharging system for internal combustion engine and control method for supercharging system | |
| CN103967594B (en) | The method of large two-stroke diesel engine and acquisition fly valve feature wherein | |
| CN201963411U (en) | Independent automatic control device for electronic throttle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110302 |