CN205843857U - A kind of car load device for testing power for electric bicycle motor - Google Patents
A kind of car load device for testing power for electric bicycle motor Download PDFInfo
- Publication number
- CN205843857U CN205843857U CN201620675111.7U CN201620675111U CN205843857U CN 205843857 U CN205843857 U CN 205843857U CN 201620675111 U CN201620675111 U CN 201620675111U CN 205843857 U CN205843857 U CN 205843857U
- Authority
- CN
- China
- Prior art keywords
- electric bicycle
- power
- rotary speed
- steel disc
- torque rotary
- 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.)
- Expired - Fee Related
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
This utility model provides a kind of car load device for testing power for electric bicycle motor, including front wheel fixing device, it includes pneumatic lever that rail plate, the slide block being installed on described rail plate slidably, the mounted perpendicular bearing block on described slide block, level be installed on described bearing block and is installed in described pneumatic lever and the locking mechanism of described bearing block junction；Bottom bracket bearing driven device, it includes servomotor, axis shaft coupling, axis torque rotary speed sensor and the axis parallel coupler being sequentially connected with；Load means, it includes nut and the screw rod corresponding with described nut；Power measurement arrangement, it includes cylinder, 1# shaft coupling, measurement of power torque rotary speed sensor, 2# shaft coupling and the brake being sequentially connected with；Suspension arrangement, it includes 1# steel disc, 2# steel disc and is located at the force value sensor on front side of described 1# steel disc；Framework；And host computer.Described device for testing power disclosure satisfy that electric bicycle tests its output power of motor under car load running status.
Description
Technical field
This utility model relates to electric bicycle motor power test technical field, particularly relate to a kind of for electronic from
The device of driving car load its power of motor of runtime test, specifically, is a kind of car load power for electric bicycle motor
Test device, is particularly suited for the test of Intelligent electric bicycle power of motor.
Background technology
Traditional electric bicycle motor power testing method needs to get off motor disassembling, is arranged on dynamometer machine and carries out
Test.But along with the development of electric bicycle, motor is installed and is tended to integrated with entire vehicle design, it is impossible to dismounting, needs car load to transport
Its power of motor could be measured during row.
The most in recent years, Intelligent electric bicycle market at home is gradually popularized.Intelligent electric bicycle belongs to
In manpower and the electric bicycle of electric power combination drive, all-electric drive pattern, Intelligent electric bicycle motor is not taked to drive
Dynamic need manpower to ride cooperations, i.e. by the pedal moment of sensor senses people, processed by micro computer, control motor output accordingly
The output of ratio.Intelligent electric bicycle be mainly characterized by foot-operated startup, foot stops power-off, simulation people when needing test
Power riding condition.In current prior art, it is possible to the test device accurately measuring this kind of Intelligent electric bicycle is the most little
See, therefore, a kind of car load device for testing power for electric bicycle motor be those skilled in the art in the urgent need to.
Utility model content
In order to overcome defect and the limitation of prior art, this utility model provides a kind of for electric bicycle motor
Car load device for testing power, it is possible to meet electric bicycle and test its output power of motor under car load running status, further
Ground, its flexible operation, practicality are wide, accuracy rate is high, can carry out flexible Application according to different situations and measurement requirement.
The technical solution of the utility model is: a kind of car load device for testing power for electric bicycle motor, including:
Front wheel fixing device, it includes rail plate, the slide block being installed on described rail plate slidably, vertically fills
Be located at the bearing block on described slide block, pneumatic lever that level is installed on described bearing block and be installed in described pneumatic lever
With the locking mechanism of described bearing block junction, wherein, described rail plate and described slide block are used for regulating described front-wheel to be fixed
Device is in the position in front-wheel central horizontal direction, and described bearing block and described pneumatic lever are used for regulating described front wheel fixing device
In vertical direction position, front-wheel center, described locking mechanism is used for being locked；
Bottom bracket bearing driven device, it servomotor including being sequentially connected with, axis shaft coupling, axis torque rotary speed sensor and
Axis parallel coupler, wherein, described servomotor is for inputting the torque rotary speed of simulation riding condition, and described middle shaft torque turns
Speed sensor for measuring the torque rotary speed value of described servomotor input by described axis shaft coupling, and described axis is parallel
Axial organ is for being connected with electric bicycle pedal position；
Load means, it includes nut and the screw rod corresponding with described nut, for the saddle to described electric bicycle
Load；
Power measurement arrangement, it cylinder including being sequentially connected with, 1# shaft coupling, measurement of power torque rotary speed sensor, 2# shaft coupling and
Brake, wherein, rear wheel drive drives described cylinder, and the resistance that described brake is subject to for simulating wheel, described measurement of power turns
Square speed probe is used for measuring torque rotary speed value；
Suspension arrangement, it includes 1# steel disc, 2# steel disc and is located at the force value sensor on front side of described 1# steel disc, described force value
Sensor is for measuring the tangential driving force suffered by described electric bicycle operationally wheel；
Framework, is used for carrying and fix described front wheel fixing device, described bottom bracket bearing driven device, described load means, institute
State power measurement arrangement and described suspension arrangement；
And host computer, it connects described force value sensor, described axis torque rotary speed sensor and described measurement of power torque
Speed probe.
Further, described pneumatic lever is to be made up of orthogonal two bars.
Further, the upper end of described 1# steel disc and described 2# steel disc connects described framework, and lower end connects described slip and leads
Rail, described front wheel fixing device, described bottom bracket bearing driven device and described load means are hung by described 1# steel disc and 2# steel disc
On said frame, do not contact with ground.
Further, described force value sensor one end is installed on front side of described 1# steel disc, and one end is arranged on framework, uses
In measuring the tangential driving force suffered by described electric bicycle operationally wheel.
Further, described screw rod enters described nut by screw thread rotation, acts perpendicularly to described electric bicycle
On saddle.
Further, described screw acting is provided with pressing plate in one end of described saddle, is used for load stepless action in institute
State saddle；The other end is provided with rotating handles, is used for rotating described screw rod.
Further, described host computer obtains described force value sensor, described axis torque rotary speed by data collecting card
Sensor and the signal of described measurement of power torque rotary speed sensor.
The described car load device for testing power for electric bicycle motor that this utility model provides, it is possible to described electricity
Its output power of motor tested under car load running status by dynamic bicycle.
Drive cylinder to rotate when electric bicycle driving wheel (trailing wheel) runs, this test device designs two kinds of motors defeated
Go out power test scheme:
A kind of is cylinder, measurement of power torque rotary speed sensor and the power-measuring system of brake composition, calculating power:
P=T*n/9549
Wherein, P represents power (kW)；T represents torque (Nm)；N represents rotating speed (rpm).
Another kind is to analyze the driving force suffered by car load and rotation speed relation calculating power, and driving force is surveyed by force value sensor
Going out, rotating speed is measured by measurement of power torque rotary speed sensor, and rating formula is:
P= F*R*n /9549
Wherein, P represents power (kW)；F represents driving force (N)；R represents that radius roller (m), n represent rotating speed (rpm).
Accompanying drawing explanation
Fig. 1 is the front view of the car load device for testing power for electric bicycle motor described in the utility model；
Fig. 2 is the top view of the car load device for testing power for electric bicycle motor described in the utility model；
Fig. 3 is the side view of the car load device for testing power for electric bicycle motor described in the utility model.
Specifically, 1-front wheel fixing device, 11-rail plate, 12-slide block, 13-bearing block, the pneumatic lever of 14-, 15-locks
Locking structure, 2-bottom bracket bearing driven device, 21-servomotor, 22-axis shaft coupling, 23-axis torque rotary speed sensor, 24-axis
Parallel coupler, 3-load means, 31-nut, 32-screw rod, 4-power measurement arrangement, 41-cylinder, 42-1# shaft coupling, 43-measurement of power
Torque rotary speed sensor, 44-2# shaft coupling, 45-brake, 5-suspension arrangement, 51-1# steel disc, 52-force value sensor, 53-2#
Steel disc, 6-framework, 7-host computer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, it should be noted that term " on ", D score, "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " interior ", " outward " etc. or position relationship be based on orientation shown in the drawings or position relationship, merely to just
Describe in description this utility model and simplification rather than indicate or imply that the device of indication or element must have specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " 1# ", " 2# "
It is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
Fig. 1 is the front view of the car load device for testing power for electric bicycle motor described in the utility model；Fig. 2
Top view for the car load device for testing power for electric bicycle motor described in the utility model；Fig. 3 is that this practicality is new
The side view of the car load device for testing power for electric bicycle motor described in type.
With reference to Fig. 1-3, this utility model provides a kind of car load device for testing power for electric bicycle motor, bag
Include:
Front wheel fixing device 1, it includes rail plate 11, is installed in the slide block on described rail plate 11 slidably
12, mounted perpendicular bearing block 13 on described slide block 12, level be installed in the pneumatic lever 14 on described bearing block 13 and
It is installed in described pneumatic lever 14 and the locking mechanism 15 of described bearing block 13 junction, wherein, described rail plate 11 and institute
State slide block 12 for regulating the front wheel fixing device position in front-wheel central horizontal direction, described bearing block 13 and described pneumatic thick stick
Bar 14 is for regulating the front wheel fixing device position in front-wheel center vertical direction, and described locking mechanism 15 is used for being locked；
Bottom bracket bearing driven device 2, it includes that the servomotor 21 being sequentially connected with, axis shaft coupling 22, axis torque rotary speed pass
Sensor 23 and axis parallel coupler 24, wherein, described servomotor 21 is for inputting the torque rotary speed of simulation riding condition, institute
State axis torque rotary speed sensor 23 to turn for the torque being measured the input of described servomotor 21 by described axis shaft coupling 22
Speed value, described axis parallel coupler 24 is for being connected with electric bicycle pedal position；
Load means 3, it includes nut 31 and the screw rod 32 corresponding with described nut 31, for described electric bicycle
Saddle load；
Power measurement arrangement 4, it includes that the cylinder 41 being sequentially connected with, 1# shaft coupling 42, measurement of power torque rotary speed sensor 43,2# join
Axial organ 44 and brake 45, wherein, rear wheel drive drives described cylinder 41, the resistance that described brake 45 is subject to for simulating wheel
Power, described measurement of power torque rotary speed sensor 43 is used for measuring torque rotary speed value；
Suspension arrangement 5, it includes 1# steel disc 51,2# steel disc 53 and is located at the force value sensor on front side of described 1# steel disc 51
52, described force value sensor 52 is for measuring described electric bicycle tangential driving force operationally；
Framework 6, is used for carrying and fix described front wheel fixing device 1, described bottom bracket bearing driven device 2, described load means
3, described power measurement arrangement 4 and described suspension arrangement 5；
And host computer 7, it connects described force value sensor 52, described axis torque rotary speed sensor 23 and described measurement of power
Torque rotary speed sensor 43.
In a particular embodiment, wherein, described pneumatic lever 14 is to be made up of orthogonal two bars；Further,
The upper end of described 1# steel disc 51 and described 2# steel disc 53 connects described framework 6, and lower end connects described rail plate 11, described front-wheel
Fixing device 1, described bottom bracket bearing driven device 2 and described load means 3 are suspended on institute by described 1# steel disc 51 and 2# steel disc 53
State on framework 6；Further, described force value sensor 52 one end is installed on front side of described 1# steel disc 51, and one end is arranged on frame
On frame 6；Further, described screw rod 32 enters described nut 31 by screw thread rotation, acts perpendicularly to described electric bicycle
Saddle on；Further, one end that described screw rod 32 acts on described saddle is provided with pressing plate 321, for uniformly being made by load
For described saddle；The other end is provided with rotating handles 322, is used for rotating described screw rod 32；Further, described host computer 7 leads to
Cross data collecting card and obtain described force value sensor 52, described axis torque rotary speed sensor 23 and described measurement of power torque rotary speed biography
The signal of sensor 43.Each technical scheme can select one or more of which to combine main technical schemes to be applied to above
In embodiment.
Specifically, front wheel fixing device 1 is by rail plate 11, slide block 12, bearing block 13, pneumatic lever 14 and locking mechanism
15 compositions.When after trailing wheel center and cylinder 41 center alignment, the rail plate 11 in front wheel fixing device 1 and slide block 12 structure,
Regulation front wheel fixing device is in the position in front-wheel central horizontal direction, and bearing block 13 and pneumatic lever 14 structure regulation front-wheel are fixed
Device is in the position of front-wheel center vertical direction, and is locked with locking mechanism 15.
Bottom bracket bearing driven device 2 is designed, by servomotor 21, axis torque rotary speed sensor at electrical bicycle middle shaft
23, axis shaft coupling 22, parallel coupler 24 form
Input torque rotating speed, the riding condition of simulation people is controlled by the mode of servomotor 21 frequency control.Middle shaft torque
Speed probe 23 measures the torque rotary speed value of servomotor 21 input by axis shaft coupling 22.Parallel by governor motion
Axial organ 24, at horizontal level regulation bottom bracket bearing driven device 2 and location mid-shaft, solves bottom bracket bearing driven device 2 by parallel coupler 24
The eccentricity issues being connected with axis.
Bottom bracket bearing driven device 2 is for simulating moment when people rides produced pedal, it is adaptable to Intelligent electric bicycle.
When Intelligent electric bicycle control system is ridden by judgement, whether people produces pedal force and pedal force size to pedal, comes
Control motor whether output and output size.For the general electric bicycle driven with full power mode, survey
It not be used at axis during examination power of motor and fix bottom bracket bearing driven device 2.
Whole front wheel fixing device 1, bottom bracket bearing driven device 2 and load device 3 1# steel disc 51 and 2# steel disc 53 is suspended on
On framework 6.The driving force that tangential driving force acts on suffered by suspension arrangement 5, i.e. wheel when electric bicycle runs passes through
Force value sensor 52 is measured.
At electrical salf-walking back wheels of vehicle by cylinder 41, measurement of power torque rotary speed sensor 43, brake 45 and shaft coupling 42,
44 composition power measurement arrangements 4.Driving cylinder 41 to rotate during rear wheel drive, brake 45 plays load effect, resistance suffered by simulating wheel
Size, the torque rotary speed value recorded by measurement of power torque rotary speed sensor 43 calculates output power of motor.
Electrical salf-walking saddle is loaded by load device 3 by the vertical tightening mechanism of screw rod 42 nut 41, and simulation people carries
Lotus, is pressed on trailing wheel on cylinder 41.
Force value sensor 52, axis torque rotary speed sensor 23, the signal of measurement of power torque rotary speed sensor 43, pass through data
Capture card is sent to host computer 7 and carries out data process, shows each sensor values in real time at host computer 7 simultaneously, input power with
And output power of motor.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (7)
1. the car load device for testing power for electric bicycle motor, it is characterised in that including:
Front wheel fixing device, it includes that rail plate, the slide block, the mounted perpendicular that are installed on described rail plate slidably exist
Pneumatic lever that bearing block on described slide block, level are installed on described bearing block and be installed in described pneumatic lever and institute
Stating the locking mechanism of bearing block junction, wherein, described rail plate and described slide block are used for regulating described front wheel fixing device
In the position in front-wheel central horizontal direction, described bearing block and described pneumatic lever are used for regulating described front wheel fixing device front
The position of wheel center vertical direction, described locking mechanism is used for being locked；
Bottom bracket bearing driven device, it includes servomotor, axis shaft coupling, axis torque rotary speed sensor and the axis being sequentially connected with
Parallel coupler, wherein, described servomotor is for inputting the torque rotary speed of simulation riding condition, and described axis torque rotary speed passes
Sensor for measuring the torque rotary speed value of described servomotor input, described axis parallel coupler by described axis shaft coupling
It is connected for the pedal position with described electric bicycle；
Load means, it includes nut and the screw rod corresponding with described nut, for carrying out the saddle of described electric bicycle
Load；
Power measurement arrangement, it includes cylinder, 1# shaft coupling, measurement of power torque rotary speed sensor, 2# shaft coupling and the braking being sequentially connected with
Device, wherein, rear wheel drive drives described cylinder, and the resistance that described brake is subject to for simulating wheel, described measurement of power torque turns
Speed sensor is used for measuring torque rotary speed value；
Suspension arrangement, it includes 1# steel disc, 2# steel disc and is located at the force value sensor on front side of described 1# steel disc, and described force value senses
Device is for measuring the tangential driving force suffered by described electric bicycle operationally wheel；
Framework, is used for carrying and fix described front wheel fixing device, described bottom bracket bearing driven device, described load means, described survey
Merit device and described suspension arrangement；
And host computer, it connects described force value sensor, described axis torque rotary speed sensor and described measurement of power torque rotary speed
Sensor.
Car load device for testing power for electric bicycle motor the most according to claim 1, it is characterised in that described
Pneumatic lever is to be made up of orthogonal two bars.
Car load device for testing power for electric bicycle motor the most according to claim 1, it is characterised in that described
The upper end of 1# steel disc and described 2# steel disc connects described framework, and lower end connects described rail plate, described front wheel fixing device, institute
State bottom bracket bearing driven device and described load means to be hung on said frame, not with ground by described 1# steel disc and described 2# steel disc
Face contacts.
Car load device for testing power for electric bicycle motor the most according to claim 1, it is characterised in that described
Force value sensor one end is installed on front side of described 1# steel disc, and one end is arranged on framework, is used for measuring described electric bicycle
The operationally tangential driving force suffered by wheel.
Car load device for testing power for electric bicycle motor the most according to claim 1, it is characterised in that described
Screw rod enters described nut by screw thread rotation, acts perpendicularly on the saddle of described electric bicycle.
Car load device for testing power for electric bicycle motor the most according to claim 5, it is characterised in that described
Screw acting is provided with pressing plate in one end of described saddle, is used for load stepless action in described saddle；The other end is provided with rotation
Handle, is used for rotating described screw rod.
Car load device for testing power for electric bicycle motor the most according to claim 1, it is characterised in that described
Host computer obtains described force value sensor, described axis torque rotary speed sensor and described measurement of power torque by data collecting card and turns
The signal of speed sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675111.7U CN205843857U (en) | 2016-06-30 | 2016-06-30 | A kind of car load device for testing power for electric bicycle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675111.7U CN205843857U (en) | 2016-06-30 | 2016-06-30 | A kind of car load device for testing power for electric bicycle motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205843857U true CN205843857U (en) | 2016-12-28 |
Family
ID=57620605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620675111.7U Expired - Fee Related CN205843857U (en) | 2016-06-30 | 2016-06-30 | A kind of car load device for testing power for electric bicycle motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205843857U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540550A (en) * | 2019-01-03 | 2019-03-29 | 广州华工机动车检测技术有限公司 | A kind of method of electric two-wheel vehicle performance detection |
| CN110608902A (en) * | 2019-10-30 | 2019-12-24 | 无锡市产品质量监督检验院 | Pedal riding capacity testing method and test stand for electric bicycle |
| CN110879358A (en) * | 2019-12-17 | 2020-03-13 | 亿科检测认证有限公司 | Reliability testing equipment and method for electric cart |
| CN113465970A (en) * | 2021-08-04 | 2021-10-01 | 中山小神童创新科技有限公司 | Stair climbing machine tester and testing method thereof |
| CN113465958A (en) * | 2021-05-31 | 2021-10-01 | 中山小神童创新科技有限公司 | Stair climbing device test system and stair climbing device test method |
| CN117330326A (en) * | 2023-09-25 | 2024-01-02 | 珠海市钧兴机电有限公司 | Dynamic testing device and testing method for transmission system |
-
2016
- 2016-06-30 CN CN201620675111.7U patent/CN205843857U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540550A (en) * | 2019-01-03 | 2019-03-29 | 广州华工机动车检测技术有限公司 | A kind of method of electric two-wheel vehicle performance detection |
| CN110608902A (en) * | 2019-10-30 | 2019-12-24 | 无锡市产品质量监督检验院 | Pedal riding capacity testing method and test stand for electric bicycle |
| CN110879358A (en) * | 2019-12-17 | 2020-03-13 | 亿科检测认证有限公司 | Reliability testing equipment and method for electric cart |
| CN113465958A (en) * | 2021-05-31 | 2021-10-01 | 中山小神童创新科技有限公司 | Stair climbing device test system and stair climbing device test method |
| CN113465958B (en) * | 2021-05-31 | 2022-05-20 | 中山小神童创新科技有限公司 | Stair climbing device test system and stair climbing device test method |
| CN113465970A (en) * | 2021-08-04 | 2021-10-01 | 中山小神童创新科技有限公司 | Stair climbing machine tester and testing method thereof |
| CN117330326A (en) * | 2023-09-25 | 2024-01-02 | 珠海市钧兴机电有限公司 | Dynamic testing device and testing method for transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205843857U (en) | A kind of car load device for testing power for electric bicycle motor | |
| CN101650410B (en) | Test stand system of electric automobile driving motor | |
| CN109297723A (en) | A kind of Electric Vehicles Driving Cycle simulator stand and analogy method | |
| CN103134692A (en) | Simulation test board line frame and test method for electric car power-driven system | |
| CN105700460B (en) | The supervising device and method of motor operation efficiency under a kind of complex working condition | |
| CN102494885A (en) | Testing device of a pure electric vehicle power transmission system assembly | |
| CN109540550A (en) | A kind of method of electric two-wheel vehicle performance detection | |
| CN107976593A (en) | Energy expenditure test system in a kind of electric automobile operational process | |
| CN108982122A (en) | It is a kind of to assess the method and device for dragging influence of the torque to automobile energy consumption | |
| CN109298213A (en) | Rapid installation device and method of the motor in thread test | |
| CN107577221B (en) | Device and method for testing traction/brake control system of vehicle driving motor or engine | |
| CN202204498U (en) | Meter counter for cable | |
| CN206378572U (en) | A kind of pure electric automobile motor testboard | |
| CN206038328U (en) | Dull and stereotyped brake test bench | |
| CN105067278A (en) | Energy-saving competitive racing car sliding internal resistance measuring device and measuring method | |
| CN115144751B (en) | Traction motor fault diagnosis device and method | |
| CN106525451A (en) | Dynamometer testing stand for new energy vehicles | |
| CN101852665B (en) | Method and system for testing brake pressure without dismantling rail transit brake system | |
| CN103558038A (en) | Traction control detection system | |
| CN108801656A (en) | A kind of countershaft assembly detection device for combination property | |
| CN202383261U (en) | Testing system for driving motor | |
| CN209640722U (en) | A kind of distribution driving control system testboard | |
| CN208805530U (en) | A kind of test car speed device for electric vehicle production | |
| CN2738223Y (en) | Bicycle brake performance testing machine | |
| CN208780377U (en) | Band paddle unmanned plane liter helps real-time testing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |