CN108692653A - Portable rotating gyration, rotating speed and angular acceleration measuring instrument and measuring system - Google Patents
Portable rotating gyration, rotating speed and angular acceleration measuring instrument and measuring system Download PDFInfo
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- CN108692653A CN108692653A CN201810487850.7A CN201810487850A CN108692653A CN 108692653 A CN108692653 A CN 108692653A CN 201810487850 A CN201810487850 A CN 201810487850A CN 108692653 A CN108692653 A CN 108692653A
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- angular acceleration
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- rotating speed
- gyration
- measuring instrument
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- 230000001133 acceleration Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 6
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 241001347978 Major minor Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/16—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal
- G01P15/165—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal for measuring angular accelerations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention relates to the rotational angle of wiper, angular speed and angular acceleration measuring techniques.The present invention solve the problems, such as tradition machinery formula survey wiper rotation angle and rotational speed devices precision it is low, have a single function, using with it is inconvenient to carry, it proposes a kind of Portable rotating gyration, rotating speed and angular acceleration measuring instrument and measuring system, drip irrigation device is:The magnet rotation angle within the scope of 360 ° and time when passing through same position are perceived using magnetoresistive sensor, is then calculated by main control module, is carried out data transmission by bluetooth, real-time update rotation angle value and tachometer value on mobile phone;After the angle for detecting a certain position in real time, data can be handled, angular speed and angular acceleration is calculated using main control module, further drawn the relation curve of the angular acceleration and time of shaft, compared with the curve of theoretical modeling.The beneficial effects of the invention are as follows:Measure that multiple functional, precision is high and is convenient to use and carry, it is more preferable to help analysis optimization wiper body.
Description
Technical field
The present invention relates to wiper technology, more particularly to wiper rotation angle, rotating speed and angle under real vehicle state accelerates
The measuring technique of degree.
Background technology
Vehicle wiper must satisfy the wiping region A of rules and regulations and wipe the requirement of region B wiping rates, therefore in order to
Determine the wiping range of wiper, it is necessary to measure the rotation angle that major-minor scrapes shaft.After producing, meeting exists usual wiper
Performance test bed upper test major-minor scrapes the rotation angle of shaft, but there is no effective means to measure under real vehicle state.It is existing
Measurement means be mechanical pointer measuring device, that is, utilize shaft that pointer is driven to rotate, then read with dial plate, no
Foot place has:The precision of dial plate can only achieve 1 °, and the precision of design tolerance ± 0.1 ° is not achieved;Visible reading will have error;
Operation and the inconvenience carried.The patent of Publication No. CN 101762246B is authorized, it discloses a kind of windscreen wiper wiping angles
Measuring instrument and its measurement method, specifically disclose:The measuring instrument includes visual laser transmitting probe and cambered surface dial, visually
Laser emission probe is provided with for by itself and the fixed geometrical clamp of wiper output shaft, cambered surface dial to be provided with for fixing
The holder of cambered surface dial, holder include pallet and the bar for cambered surface dial to be fixedly connected with the tray, pallet setting
There is index point, and the index point is located on the circle central axis corresponding to the cambered surface of cambered surface dial;The cambered surface institute of cambered surface dial
Corresponding circle central axis is overlapped with the output rotation axis of wiper to be measured.In measurement process, visual laser transmitting probe is with waiting for
The output rotation axis for surveying wiper is reciprocating, and the light beam launched can move on cambered surface dial, and the light beam arrives
The distance of the same horizontal line of dial is all identical, more accurate so as to ensure to measure.As it can be seen that the windscreen wiper wiping angle
Measuring instrument and its measurement method are that the measurement of windscreen wiper wiping angle is carried out by mechanical graduation apparatus.
In addition, the wiping speed of vehicle wiper is also critically important performance indicator, regulation is to the high low speed of rain shaving electrical machine
It is distinctly claimed.At rainy day, either wiping excessive velocities of wiper or excessively slow can all make the sight of driver
It is obstructed, to cause the security risk in vehicle travel process.In real vehicle state, existing measurement means be using stopwatch into
Row artificial counting, it is very original.
In addition, the rotating angular acceleration of shaft is also an important performance indicator, existing means are by profession
3D softwares carry out the size that theory analysis determines parts, control element size during then manufacturing, not yet
A instrument can measure the actual angular acceleration of shaft.
Therefore the measuring instrument of a wiper rotation angle, rotating speed and the angular acceleration for having high-accuracy portable is researched and developed
Device, it appears particularly important.
Invention content
The object of the present invention is to provide a kind of Portable rotating gyration, rotating speed and angular acceleration measuring instrument and measuring system,
Solve the problems, such as tradition machinery formula survey wiper rotation angle and rotational speed devices precision it is low, have a single function, using with it is inconvenient to carry.
The present invention solves its technical problem, the technical solution adopted is that:Portable rotating gyration, rotating speed and angular acceleration are surveyed
Measure instrument, which is characterized in that including magnetoresistive sensor, main control module, data transmission module, power module, support column, holder and angle
Detecting module is spent, the magnetoresistive sensor, main control module, data transmission module and power module are welded on same printed circuit
On plate, the magnetoresistive sensor, main control module and data transmission module are electrically connected with power module, the magnetoresistive sensor
Output end and a data input/output interface of main control module connect, another data input/output of main control module connects
Mouth is connect with the input terminal of data transmission module, and data transmission module is led to by output end with the intelligent terminal to be connect
Letter;
The printed circuit board is detachably connected by support column and holder, and the angle detection module includes magnet and company
Fitting, the connector include upper buckling groove, lower buckling groove and two side walls, and the two side walls and holder of the connector are removable
Connection is unloaded, the magnet is arranged in printed circuit board the lower section of magnetoresistive sensor and is detachably connected with upper buckling groove, described
The output shaft of lower buckling groove and wiper to be tested is detachably connected.
Further, the power module includes USB interface, and the USB interface is used to pass through data line and power supply unit
Connection.
Specifically, the power supply unit is mobile power;
Or it is intelligent terminal or tablet computer or laptop.
Still further, the power supply voltage range of the mobile power is 9~18V.
Specifically, the data transmission module is bluetooth module.
Still further, the holder includes two card slots.
Specifically, further include two fixed blocks, being clamped respectively with two card slots of holder for described two fixed blocks is described
The output shaft of two fixed blocks and wiper to be tested is adapted.
Still further, further including dustproof cover, the dustproof cover is covered in the top of printed circuit board.
Portable rotating gyration, rotating speed and angular acceleration measuring system, which is characterized in that including as claimed in claim 8
Portable rotating gyration, rotating speed and angular acceleration measuring instrument and intelligent terminal, be provided in the intelligent terminal and data pass
The defeated corresponding data reception module of module, is communicated by data reception module with data transmission module.
It is a kind of Preferable scheme is that, further include corresponding application programs in the intelligent terminal, the corresponding application programs are used
In display data transmissions content.
The invention has the advantages that passing through above-mentioned Portable rotating gyration, rotating speed and angular acceleration measuring instrument and measurement
System perceives the magnet rotation angle within the scope of 360 ° and time when passing through same position using magnetoresistive sensor, then leads to
The calculating for crossing main control module, is carried out data transmission by bluetooth module, the real-time update in corresponding application programs in intelligent terminal
Rotation angle value and tachometer value.After the angle for detecting a certain position in real time, data can be handled, utilize main control module
Angular speed and angular acceleration is calculated, the relation curve of the further angular acceleration and time for drawing shaft, with theoretical mould
Quasi- curve is compared.Rotation angle, rotating speed and angle to accurately measure out wiper under real vehicle state accelerate
Degree, and real-time display can be carried out by the common intelligent terminal of user, impact force, solution in analysis optimization wiper body
Wiper body strike note in terms of improving the practical engineering applications such as windscreen wiper system service life, there is very high practical value.
Description of the drawings
Fig. 1 is the front view of Portable rotating gyration of the present invention, rotating speed and angular acceleration measuring instrument;
Fig. 2 is the vertical view of Portable rotating gyration of the present invention, rotating speed and angular acceleration measuring instrument;
Fig. 3 is the A-A sectional views in Fig. 2;
Wherein, 1 printed circuit board is indicated, 2 indicate dustproof cover, and 3 indicate holder, and 4 indicate magnet, and 5 indicate connector, 6 tables
Show fixed block.
Specific implementation mode
With reference to embodiment and attached drawing, detailed description of the present invention technical solution.
Portable rotating gyration, rotating speed and angular acceleration measuring instrument of the present invention, by magnetoresistive sensor, main control module,
Data transmission module, power module, support column, holder and angle detection module composition, front view is referring to Fig. 1, vertical view ginseng
See Fig. 2, for A-A sectional views referring to Fig. 3, the fulcrum bearing in Fig. 1-Fig. 3 is structure in wiper ontology to be tested in vertical view,
In, magnetoresistive sensor, main control module, data transmission module and power module are welded on same printed circuit board 1, and magnetic resistance passes
Sensor, main control module and data transmission module are electrically connected with power module, the output end and main control module of magnetoresistive sensor
The connection of a data input/output interface, another data input/output interface of main control module and data transmission module
Input terminal connects, and data transmission module is communicated by output end with the intelligent terminal to be connect;Printed circuit board 1 passes through branch
Dagger is detachably connected with holder 3, and angle detection module includes magnet 4 and connector 5, and connector 5 includes upper buckling groove, lower card
Access slot and two side walls, two side walls and the holder of connector 5 are detachably connected, and magnetic resistance is arranged in printed circuit board 1 in magnet 4
It the lower section of sensor and is detachably connected with upper buckling groove, the output shaft of lower buckling groove and wiper to be tested is detachably connected.
Portable rotating gyration, rotating speed and angular acceleration measuring system, by Portable rotating gyration, rotating speed and angular acceleration
Measuring instrument and intelligent terminal composition, wherein be provided with data reception module corresponding with data transmission module in intelligent terminal, lead to
Data reception module is crossed to be communicated with data transmission module.
Embodiment
Portable rotating of embodiment of the present invention gyration, rotating speed and angular acceleration measuring instrument, including magnetoresistive sensor, master control mould
Block, data transmission module, power module, support column, holder and angle detection module, wherein magnetoresistive sensor, main control module,
Data transmission module and power module are welded on same printed circuit board 1, magnetoresistive sensor, main control module and data transmission
Module is electrically connected with power module, the output end of magnetoresistive sensor and main control module data input/output interface
Connection, another data input/output interface of main control module and the input terminal of data transmission module connect, data transmission module
It is communicated with the intelligent terminal to be connect by output end;Printed circuit board 1 is detachably connected by support column and holder 3,
Angle detection module includes magnet 4 and connector 5, and connector 5 includes upper buckling groove, lower buckling groove and two side walls, connector 5
Two side walls be detachably connected with holder, magnet 4 be arranged in printed circuit board 1 lower section of magnetoresistive sensor and with upper clamping
Slot is detachably connected, and the output shaft of lower buckling groove and wiper to be tested is detachably connected.
In above-mentioned apparatus, power module may include USB interface, and USB interface is used to connect by data line and power supply unit
It connects;The measuring instrument is powered for convenience, power supply unit is preferably mobile power, or intelligent terminal or tablet electricity
Brain or laptop etc. have the smart machine of USB interface;In order to make the measuring instrument be operated under stable operating voltage, move
The power supply voltage range of dynamic power supply is preferably 9~18V;In order to which the data for handling main control module are preferably transmitted, data
Transmission module is preferably bluetooth module.
In above-mentioned apparatus, holder 3 can also include two card slots;The measuring instrument can also include two fixed blocks 6, can
Better fixing printed circuit plate 1, the two fixed blocks 6 are clamped with two card slots of holder 3 respectively, and two fixed blocks 6
It is adapted with the output shaft of wiper to be tested;In addition, in order to protect magnetoresistive sensor on printed circuit board 1, main control module,
Data transmission module and power module, and magnetoresistive sensor, main control module, data transmission module and power module in order to prevent
Dust and other impurities object are stained with when using and laying up, which can also include dustproof cover 2, and dustproof cover 2 is preferred
Ground is covered in the top of printed circuit board 1.
Portable rotating gyration, rotating speed and angular acceleration measuring system, by Portable rotating gyration, rotating speed and angular acceleration
Measuring instrument and intelligent terminal composition, wherein be provided with data reception module corresponding with data transmission module in intelligent terminal, lead to
Data reception module is crossed to be communicated with data transmission module;Further include corresponding application programs, respective application journey in intelligent terminal
Sequence is used for display data transmissions content, and Data Transmission Content here includes the rotation of main control module treated wiper to be tested
Gyration, rotating speed and angular acceleration.
In actual use, the principle of measurement output shaft rotation angle is specially:Magnetoresistive sensor is according to the angle of radial magnet
Degree output corresponding data, wherein radial magnet rotation angle range are 0~360 degree, corresponding magnetoresistive sensor output numerical value range
It is 0~4095, output numerical value and radial magnet angle are linear, can be arranged:It is corresponded to when radial magnet rotates clockwise
Magnetoresistive sensor output numerical value increases, and the reduction of magnetoresistive sensor output numerical value, magnet rotation are corresponded to when radial magnet rotates counterclockwise
During turning, if corresponding magnetoresistive sensor output numerical value no longer increases, that is, the position for being identified as wiper to be tested is upper overturning
Position, if corresponding magnetoresistive sensor output numerical value no longer reduces, that is, the position for being identified as wiper to be tested is lower upturned position;
Can equally it be arranged:It can be arranged:The reduction of magnetoresistive sensor output numerical value, radial magnet are corresponded to when radial magnet rotates clockwise
Magnetoresistive sensor output numerical value is corresponded to when rotation counterclockwise to increase, in magnet rotary course, if corresponding magnetoresistive sensor exports number
Value no longer increases, that is, the position for being identified as wiper to be tested is lower upturned position, if corresponding magnetoresistive sensor output numerical value is not
Reduce again, that is, the position for being identified as wiper to be tested is upper upturned position.
Measure shaft rotating speed principle be specially:It is how much per minute to calculate to measure time of the magnet by same position when
Turn, calculate for the first time, magnet is needed to expire three swing circles by same position, to calculate rotating speed by main control module
Average value, after later magnet often runs one turn, speed update is primary, is equally turned to calculate with three nearest spin cycle times
Fast average value.
The principle of the angular acceleration of shaft and the curve of time is specially:The times such as one whole cycle are set as more parts,
And the data of the angular speed of each timing node shaft are exported to come, so that it may to go out the Drawing of Curve of angular acceleration and time
Come, and will be carried out in the angular acceleration drawn out and the curve transmission of time to intelligent terminal set by user by bluetooth module
It has been shown that, in order to preferably show rotation angle, rotating speed and the angular acceleration of wiper to be tested, can be arranged respective application journey
Sequence, user can by the application program in real time observation curette the case where and the rotation angle by measuring, rotating speed and
The angular acceleration and rotation angle of setting, rotating speed and angular acceleration comparison judge whether windscreen wiper wiping situation complies with standard.
Claims (10)
1. Portable rotating gyration, rotating speed and angular acceleration measuring instrument, which is characterized in that including magnetoresistive sensor, main control module,
Data transmission module, power module, support column, holder and angle detection module, the magnetoresistive sensor, main control module, data
Transmission module and power module are welded on same printed circuit board, the magnetoresistive sensor, main control module and data transmission
Module is electrically connected with power module, the output end of the magnetoresistive sensor and main control module data input/output
Interface connects, another data input/output interface of main control module and the input terminal of data transmission module connect, data transmission
Module is communicated by output end with the intelligent terminal to be connect;
The printed circuit board is detachably connected by support column and holder, and the angle detection module includes magnet and connection
Part, the connector include upper buckling groove, lower buckling groove and two side walls, and the two side walls and holder of the connector are detachable
Connection, the magnet is arranged in printed circuit board the lower section of magnetoresistive sensor and is detachably connected with upper buckling groove, under described
The output shaft for connecing section slot and wiper to be tested is detachably connected.
2. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 1, which is characterized in that described
Power module includes USB interface, and the USB interface by data line with power supply unit for being connect.
3. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 2, which is characterized in that described
Power supply unit is mobile power;
Or it is intelligent terminal or tablet computer or laptop.
4. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 3, which is characterized in that described
The power supply voltage range of mobile power is 9~18V.
5. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 1, which is characterized in that described
Data transmission module is bluetooth module.
6. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 1, which is characterized in that described
Holder includes two card slots.
7. Portable rotating gyration, rotating speed and angular acceleration measuring instrument according to claim 6, which is characterized in that also wrap
Include two fixed blocks, described two fixed blocks are clamped with two card slots of holder respectively, described two fixed blocks be intended to test
The output shaft of wiper is adapted.
8. according to Portable rotating gyration, rotating speed and angular acceleration measuring instrument described in claim 1-7 any one, feature
It is, further includes dustproof cover, the dustproof cover is covered in the top of printed circuit board.
9. Portable rotating gyration, rotating speed and angular acceleration measuring system, which is characterized in that including as claimed in claim 8
Portable rotating gyration, rotating speed and angular acceleration measuring instrument and intelligent terminal, are provided in the intelligent terminal and data transmission
The corresponding data reception module of module is communicated by data reception module with data transmission module.
10. Portable rotating gyration according to claim 9, rotating speed and angular acceleration measuring system, which is characterized in that institute
It further includes corresponding application programs to state in intelligent terminal, and the corresponding application programs are used for display data transmissions content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487850.7A CN108692653B (en) | 2018-05-21 | 2018-05-21 | Portable rotation angle, rotation speed and angular acceleration measuring instrument and measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487850.7A CN108692653B (en) | 2018-05-21 | 2018-05-21 | Portable rotation angle, rotation speed and angular acceleration measuring instrument and measuring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108692653A true CN108692653A (en) | 2018-10-23 |
| CN108692653B CN108692653B (en) | 2024-09-06 |
Family
ID=63847696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810487850.7A Active CN108692653B (en) | 2018-05-21 | 2018-05-21 | Portable rotation angle, rotation speed and angular acceleration measuring instrument and measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108692653B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856418A (en) * | 2019-02-11 | 2019-06-07 | 西安卓士博液压工程有限责任公司 | A kind of radial plunger piston motor rotation-speed measuring device and its installation method |
| CN110275045A (en) * | 2019-06-12 | 2019-09-24 | 杭州智缤科技有限公司 | A kind of devices and methods therefor detecting rotating cycle and direction |
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| CN101875342A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Electric windshield wiper of automobile and control method thereof |
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| CN104272579A (en) * | 2012-04-16 | 2015-01-07 | 株式会社美姿把 | Brushless motor and wiper device |
| US20160223577A1 (en) * | 2015-01-30 | 2016-08-04 | Vision Service Plan | Systems and methods for tracking motion of a bicycle or other vehicles |
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| CN106169838A (en) * | 2015-05-21 | 2016-11-30 | Dyauto株式会社 | For motor vehicle wiper motor equipment |
| CN107000693A (en) * | 2014-12-12 | 2017-08-01 | 阿斯莫株式会社 | Wiper control device |
| JP2017159908A (en) * | 2017-06-27 | 2017-09-14 | アスモ株式会社 | Wiper device |
| CN206968611U (en) * | 2017-05-19 | 2018-02-06 | 成都华川电装有限责任公司 | Screen wiper |
| CN208505237U (en) * | 2018-05-21 | 2019-02-15 | 成都华川电装有限责任公司 | Portable rotating gyration, revolving speed and angular acceleration measuring instrument and measuring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008160941A (en) * | 2006-12-21 | 2008-07-10 | Mitsuba Corp | Wiper motor |
| CN101875342A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Electric windshield wiper of automobile and control method thereof |
| CN104272579A (en) * | 2012-04-16 | 2015-01-07 | 株式会社美姿把 | Brushless motor and wiper device |
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| CN105989704A (en) * | 2015-02-15 | 2016-10-05 | 上海卜珑智能科技有限公司 | Apparatus for realizing intelligent data measurement through sensor and Bluetooth communication mode |
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|---|---|---|---|---|
| CN109856418A (en) * | 2019-02-11 | 2019-06-07 | 西安卓士博液压工程有限责任公司 | A kind of radial plunger piston motor rotation-speed measuring device and its installation method |
| CN110275045A (en) * | 2019-06-12 | 2019-09-24 | 杭州智缤科技有限公司 | A kind of devices and methods therefor detecting rotating cycle and direction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108692653B (en) | 2024-09-06 |
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