CN109187050A - Arrangements for automotive doors closing speed and resistance idol test device - Google Patents
Arrangements for automotive doors closing speed and resistance idol test device Download PDFInfo
- Publication number
- CN109187050A CN109187050A CN201811144505.XA CN201811144505A CN109187050A CN 109187050 A CN109187050 A CN 109187050A CN 201811144505 A CN201811144505 A CN 201811144505A CN 109187050 A CN109187050 A CN 109187050A
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- Prior art keywords
- hall sensor
- differential hall
- voltage signal
- shell
- permanent magnet
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
Abstract
The present invention relates to a kind of arrangements for automotive doors closing speeds and resistance idol test device, belong to speed and force characteristic the field of test technology.Solves the technical issues of arrangements for automotive doors closing speed test device in the prior art easily occurs error repeatedly, need to repeatedly demarcate.Test device of the invention, including acquisition device, numeric keypad, display screen and fixing piece；Wherein, acquisition device includes shell, the first differential Hall sensor, the second differential Hall sensor, the differential Hall sensor of third, the first permanent magnet, the second permanent magnet, third permanent magnet, circuit board, power module, signal processing module and microcontroller.The test device structure is simple, be easily installed, be easy to use, test result is accurate, is suitable for various automobiles.
Description
Technical field
The present invention relates to a kind of arrangements for automotive doors closing speeds and resistance idol test device, belong to speed and force characteristic test skill
Art field.
Background technique
With the continuous development of automotive engineering, the performance indexes of automobile is also being continuously improved, the difficulty or ease of close door
Degree becomes one of the major criterion for measuring car mass, and door closing power is to measure the important indicator of car door quality, in automobile
Manufacturing industry is using the door-hinge system of door closing power characterization car door and the performance of lock system.
Door closing speed testing device can provide reference for evaluation door closing power, also further to evaluate car door
The analysis and experiment of the finite element theory of energy and car door and gasket structure provide reference standard.
The master thesis of Changchun University of Science and Technology 2010 one entitled " sedan door closing force test system development "
A kind of door closing force tester system is disclosed, calculates door closing power by detecting the linear velocity of vehicle door edge point.
The tester used in text is a kind of linear velocity tester, and velocity test process is to emit two beams at a distance of very close parallel sharp
Light, using their flare as investigate target, since the optical reflective characteristics of car door are different from environment, when car door point according to
Secondary when passing through at two beam parallel laser irradiations, the received flare optical characteristics of tester changes, and records the reflected light
At the time of spot optical characteristics changes, at the time of using the moment as car door point by laser irradiation, vehicle is thus obtained
Certain point of door is by the time at two beam parallel laser irradiations.The spacing of two beam parallel lasers is known parameters, and very small, is surveyed
The average linear velocity tried is equivalent to the instantaneous velocity of car door point.However, the tester after mounting, need to mark before use
It is fixed, and tester electronic component it is non-linear due to, tester tests relatively low speed and relatively high speed, surveys
Test result needs to demarcate there are nonlinear system error；In addition, tester is in use for some time, due in tester
The aging of electronic component, testing laser reasons, the test result such as strength retrogression will appear new error again, need to demarcate, it is complete
The Velocity Reference source of a standard is needed at calibration.
Summary of the invention
In view of this, the present invention to solve the deficiencies in the prior art, provides a kind of arrangements for automotive doors closing speed and resistance is even
Test device, it is even by test arrangements for automotive doors closing speed and resistance, evaluate arrangements for automotive doors closing performance.
It is as follows that the present invention solves the technical solution that above-mentioned technical problem is taken.
Arrangements for automotive doors closing speed and resistance idol test device, including acquisition device, numeric keypad, display screen and fixation
Part；
The acquisition device includes that shell, the first differential Hall sensor, the second differential Hall sensor, third are differential suddenly
That sensor, the first permanent magnet, the second permanent magnet, third permanent magnet, circuit board, power module, signal processing module and micro-control
Device processed；
The shell is hollow cube structure；
The first differential Hall sensor, the second differential Hall sensor and the differential Hall sensor of third are along to measuring car
The closing direction of door is sequentially fixed in the one side of circuit board, and three differential Hall sensors are located on the same line, should
Plane where when straight line is closed completely with car door to be measured is vertical；First differential Hall sensor and the second differential Hall sensor
Centre distance is D1, and the centre distance of the second differential Hall sensor and the differential Hall sensor of third is D2；
First permanent magnet, the second permanent magnet, third permanent magnet are each attached on the another side of circuit board, the first permanent magnetism
Iron and the first differential Hall sensor coaxial arrangement, car door to be measured is when by the first differential Hall sensor, with the first permanent magnetism
Iron effect, the first differential Hall sensor output voltage signal S1；Second permanent magnet and the second differential Hall sensor are coaxially set
It sets, car door to be measured acts on when by the second differential Hall sensor with the second permanent magnet, the second differential Hall sensor output
Voltage signal S2；Third permanent magnet and the differential Hall sensor coaxial arrangement of third, car door to be measured are passing through the second differential Hall
When sensor, acted on third permanent magnet, the differential Hall sensor output voltage signal S3 of third；
The circuit board is fixed inside the shell, and the first differential Hall sensor, the second differential Hall sensor and third
Differential Hall sensor is towards car door motion profile；
The power module, signal processing module and microcontroller are integrated on circuit boards；
Power module and the first differential Hall sensor, the second differential Hall sensor, the differential Hall sensor of third, letter
Number processing module, microcontroller and display screen connection, are the first differential Hall sensor, the second differential Hall sensor, third
Differential Hall sensor, signal processing module, microcontroller and display screen power supply；
Signal processing module and the first differential Hall sensor, the second differential Hall sensor and the differential hall sensing of third
Device connection, amplifies received voltage signal S1, voltage signal S2 and voltage signal S3, filters and Shape correction, and will
Treated, and voltage signal S1, voltage signal S2 and voltage signal S3 are transmitted to microcontroller；
Microcontroller carries out A/D conversion to received treated voltage signal S1, voltage signal S2 and voltage signal S3,
Record receives the time interval t of voltage signal S1 and voltage signal S21And receive the time of voltage signal S2 and voltage signal S3
It is spaced t2, and according to centre distance D1, centre distance D2, vertical range D3, car door quality m and car door radius of gyration R, by formulaCalculate angle theta1, by formulaCalculate angle theta2, by formulaCalculate angle theta3, by formulaDoor closing angular velocity omega is calculated, by formulaDoor closing acceleration alpha is calculated, by formula J=mR2Calculate car door around door-hinge rotary inertia J,
And then door closing speed v is calculated by formula v=ω R, door closing resistance idol M is calculated by M=Ja；
The numeric keypad is fixed on the outer surface of shell, and is connect with microcontroller, is transmitted and is used to microcontroller
The car door quality m and car door radius of gyration R of person's input；
The display screen is fixed on the outer surface of shell, and is connect with microcontroller, shows the calculating knot of microcontroller
Fruit；
The fixing piece is fixed on the outer surface of shell, and arrangements for automotive doors closing speed and resistance idol test device is removable
On the car body, the vertical range in the face that fixing piece is contacted with car body to the center of third Hall switch is D3 for the fixation unloaded.
Further, the shell is cuboid metal box, and material is metallic aluminium.
Further, the microcontroller record receives the time interval t of voltage signal S1 and voltage signal S21And it receives
The time interval t of voltage signal S2 and voltage signal S32Process are as follows: when receiving voltage signal S1, starting internal first
Timer starts timing, when receiving voltage signal S2, stops internal first timer, reads the numerical value of the first timer simultaneously
Calculate the time interval t for receiving voltage signal S1 and voltage signal S21, while starting internal second timer and starting timing, when
When receiving voltage signal S3, stop internal second timer, read the second timers value and calculates reception voltage signal S2
With the time interval t of voltage signal S32。
Further, the numeric keypad be matrix keyboard, comprising " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ",
" 7 ", " 8 ", " 9 " ten numbers and " ", " removing " and " confirmation " 13 keys.
Further, the display screen uses liquid crystal display.
Further, the display screen shows door closing speed v and door closing resistance idol M.
Further, the fixing piece is soft rubber iron, another on the outer surface of soft rubber iron one side fixing shell
Face can be absorbed and fixed on car body.
Further, the mode of the soft rubber ferropexy on the shell is to paste fixed or compressed by connecting screw
It is fixed.
Further, the signal processing module includes integrated operational amplifier and Schmidt trigger.
Further, circuit board is parallel with the back plate of shell, fixes the back plate for being located proximate to shell or is directly anchored to
In the back plate of shell；Numeric keypad is fixed on the foreboard of shell, and display screen is fixed on the top plate of shell, and fixing piece is fixed on
On the right side plate of shell.
Compared with prior art, the invention has the benefit that
Arrangements for automotive doors closing speed of the invention and resistance idol test device test car door closing speed and resistance idol result
Accurately, error is small.
For arrangements for automotive doors closing speed and resistance idol test device of the invention compared with optical testing device, structure is simple,
The reality occasionally surveyed to door closing speed and resistance can be realized by three difference Hall sensors and coherent signal processing circuit
When test.
Arrangements for automotive doors closing speed of the invention and the installation of resistance idol test device and using simple, convenient, when use, are logical
Crossing on the car body that the soft magnet of test device bottom is adsorbed on by car door can be completed test, without the operation such as calibration.
Arrangements for automotive doors closing speed and resistance idol test device versatility of the invention is good, need to only measure returning for car door to be measured
Turn radius, the test of door closing speed and resistance idol can be realized, is suitable for various.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of arrangements for automotive doors closing speed of the invention and resistance idol test device；
Fig. 2 is the structural schematic diagram of arrangements for automotive doors closing speed of the invention and resistance idol test device；
Fig. 3 is the working principle diagram of arrangements for automotive doors closing speed of the invention and resistance idol test device；
Fig. 4 is the structure that arrangements for automotive doors closing speed of the invention and resistance idol test device are connect with automobile when in use
Schematic diagram；
Fig. 5 is that arrangements for automotive doors closing speed and resistance idol test device of the invention car body and car door to be measured in test revolve
Turning point angulation；
In figure, 1-1, shell, 1-2, the first differential Hall sensor, 1-3, the second differential Hall sensor, 1-4, third
Differential Hall sensor, 1-5, the first permanent magnet, 1-6, the second permanent magnet, 1-7, third permanent magnet, 1-8, circuit board, 2, number
Keyboard, 3, display screen, 4, fixing piece, 5, car body, 6, car door to be measured.
Specific embodiment
Technical solution of the present invention is further illustrated below in conjunction with attached drawing 1-5.
As shown in Figure 1, arrangements for automotive doors closing speed and resistance idol test device of the invention includes: acquisition device, number
Keyboard 2, display screen 3 and fixing piece 4.
As shown in Fig. 2, acquisition device includes: shell 1-1, the first differential Hall sensor 1-2, the second differential hall sensing
The differential Hall sensor 1-4 of device 1-3, third, the first permanent magnet 1-5, the second permanent magnet 1-6, third permanent magnet 1-7, circuit board
1-8, power module, signal processing module and microcontroller.
Wherein, shell 1-1 is hollow cube structure, and such as cuboid or square, material is metallic aluminium.
The differential Hall sensor 1-4 of first differential Hall sensor 1-2, the second differential Hall sensor 1-3, third along to
6 closing direction of measuring car door is fixed in the one side of circuit board 1-8, and the first differential Hall sensor 1-2, the second differential Hall pass
The differential Hall sensor 1-4 of sensor 1-3, third is located on the same line, where when the straight line and car door 6 to be measured are closed completely
Plane is vertical.The centre distance of the first differential differential Hall sensor 1-3 of Hall sensor 1-2 and second is D1, and second is differential
The centre distance of the Hall sensor 1-3 and differential Hall sensor 1-4 of third is D2.First permanent magnet 1-5, the second permanent magnet 1-
6 and third permanent magnet 1-7 is each attached on the another side of circuit board 1-8.First permanent magnet 1-5 and the first differential Hall sensor
1-2 coaxial arrangement, the differential Hall sensor 1-3 coaxial arrangement of the second permanent magnet 1-6 and second, third permanent magnet 1-7 and third
Differential Hall sensor 1-4 coaxial arrangement.Car door 6 to be measured is when by the first differential Hall sensor 1-2, with the first permanent magnet
1-5 effect, the first differential Hall sensor 1-2 output voltage signal S1；Car door 6 to be measured is passing through the second differential Hall sensor
When 1-3, acted on the second permanent magnet 1-6, the second differential Hall sensor 1-3 output voltage signal S2；Car door 6 to be measured is passing through
When the second differential Hall sensor 1-4, acted on third permanent magnet 1-7, the differential Hall sensor 1-7 output voltage signal of third
S3.Its principle is: when car door 6 to be measured is without differential Hall sensor, by the magnetic field strength very little of differential Hall sensor,
The output voltage very little of differential Hall sensor；When car door 6 to be measured is by differential Hall sensor, car door 6 and permanent magnet to be measured
Effect is increased by the magnetic field strength of differential Hall sensor, and the output voltage of differential Hall sensor increases.
Circuit board 1-8 is fixed in shell 1-1, parallel with the back plate of shell 1-1, is fixed after being located proximate to shell 1-1
Plate is directly anchored in the back plate of shell 1-1；And the first differential Hall sensor 1-2, the second differential Hall sensor 1-
3, the differential Hall sensor 1-4 of third is towards car door motion profile.Fixed form, which can paste, fixes or passes through circuit board slot
It is fixed.
Power module, signal processing module and microcontroller are integrated on circuit board 1-8.
Power module and the differential Hall of the first differential Hall sensor 1-2, the second differential Hall sensor 1-3, third pass
Sensor 1-4, signal processing module, microcontroller and display screen 3 connect, be the first differential Hall sensor 1-2, second it is differential suddenly
You power at sensor 1-3, the differential Hall sensor 1-4 of third, signal processing module, microcontroller and display screen 3.Power module
Power module commonly used in the art can be used, 9V rechargeable battery is such as used, by obtaining 5V voltage and 3.3V electricity after LM117 pressure stabilizing
Pressure, 5V voltage are that three differential Hall sensors, signal processing module and display screen 3 are powered, and 3.3V voltage is microcontroller confession
Electricity.
Signal processing module and the first differential Hall sensor 1-2, the second differential Hall sensor 1-3 and third are differential suddenly
Your sensor 1-4 connection amplifies received voltage signal S1, voltage signal S2 and voltage signal S3, filters and shaping
Processing, and voltage signal S1, voltage signal S2 and voltage signal S3 are transmitted to microcontroller by treated.Signal processing module
Including integrated operational amplifier and Schmidt trigger.
Microcontroller carries out A/D conversion to received treated voltage signal S1, voltage signal S2 and voltage signal S3；
And microcontroller is when receiving voltage signal S1, starts internal first timer and starts timing, when receiving voltage signal S2
When, stop internal first timer, reads the numerical value of the first timer and calculate reception voltage signal S1's and voltage signal S2
Time interval t1, while starting internal second timer and starting timing, when receiving voltage signal S3, stops internal second and count
When device, read the second timers value simultaneously calculate receive voltage signal S2 and voltage signal S3 time interval t2；And in
Heart distance D1, centre distance D2, vertical range D3, car door quality m and car door radius of gyration R, by formulaCalculate car door and car body angle theta1, by formulaIt calculates car door and car body presss from both sides
Angle θ2, by formulaCalculate car door and car body angle theta3, by formulaCalculate door closing angular speed
ω, by formulaDoor closing acceleration alpha is calculated, by formula J=mR2Car door is calculated around door-hinge
Rotary inertia J, and then door closing speed v is calculated by formula v=ω R, door closing resistance idol M is calculated by M=Ja.Microcontroller
Device is element commonly used in the art, such as single-chip microcontroller, chip STM32.D1, D2 and D3 are when the algorithm to microcontroller is designed
It is written in microcontroller.
On the outer surface of the foreboard of 2 fixing shell 1-1 of numeric keypad.Numeric keypad 2 is connect with microcontroller, to microcontroller
Device transmits the car door quality m and car door radius of gyration R of user's input.Numeric keypad generallys use matrix keyboard, includes
" 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 " ten numbers and " ", " removing " and " confirmation " 13 are pressed
Key.
Display screen 3 is fixed on the outer surface of the top plate of shell 1-1.Display screen 3 is connect with microcontroller, micro- for showing
The calculated result of controller, i.e. arrangements for automotive doors closing speed v and resistance idol M.Display screen 3 preferably uses liquid crystal display.
Fixing piece 4 is fixed on the outer surface of the right side plate of shell 1-1, and arrangements for automotive doors closing speed and resistance are occasionally tested
Device is detachably mounted on the car body 5 on 6 side of car door to be measured, and the face of fixing piece 4 contacted with car body 5 is opened to third Hall
The vertical range for closing the center 1-4 is D3.It is preferred that fixing piece 4 is soft rubber iron, soft rubber iron is fixed on shell 1-1's on one side
On the outer surface of right side plate, fixed form is not particularly limited, and can paste fixation, can also be fixed with connecting screw, another
Face can be absorbed and fixed on car body 5.
As shown in Figure 3 and Figure 4, when in use, test device of the invention is first fixed on car door to be measured by fixing piece 4
On the car body 5 on 6 sides, car door quality m and car door radius of gyration R are input to by microcontroller by numeric keypad 2, then with hand
Car door 6 to be measured is driven to close, car door 6 to be measured successively passes through the first differential Hall sensor 1- of acquisition device during the shutdown process
2, the second differential Hall sensor 1-3 and third differential Hall sensor 1-4, the first differential Hall sensor 1-2, second differential
Hall sensor 1-3 and the differential Hall sensor 1-4 difference output voltage signal S1 of third, voltage signal S2 and voltage signal
Signal acquisition module acquisition collection voltages signal S1, voltage signal S2 and the voltage signal S3 of S3, circuit board 1-8, and be transmitted to
Signal processing module, voltage signal S1, voltage signal S2 and voltage signal S3 amplify through signal processing module, filter, at shaping
After reason, it is transmitted to microcontroller, after microcontroller carries out A/D conversion to voltage signal, in conjunction with centre distance D1, centre distance
D2, vertical range D3, car door quality m and car door radius of gyration R calculate door closing speed and door closing resistance is even, and pass through
Display screen 3 is shown.
Claims (10)
1. arrangements for automotive doors closing speed and resistance idol test device, which is characterized in that including acquisition device, numeric keypad (2), show
Display screen (3) and fixing piece (4)；
The acquisition device includes shell (1-1), the first differential Hall sensor (1-2), the second differential Hall sensor (1-
3), the differential Hall sensor of third (1-4), the first permanent magnet (1-5), the second permanent magnet (1-6), third permanent magnet (1-7), electricity
Road plate (1-8), power module, signal processing module and microcontroller；
The shell (1-1) is hollow cube structure；
The first differential Hall sensor (1-2), the second differential Hall sensor (1-3) and the differential Hall sensor of third
(1-4) is sequentially fixed in the one side of circuit board (1-8) along the closing direction of car door to be measured (6), and three differential hall sensings
Device is located on the same line, and plane where when which is closed completely with car door to be measured (6) is vertical；First differential hall sensing
The centre distance of device (1-2) and the second differential Hall sensor (1-3) is D1, the second differential Hall sensor (1-3) and third
The centre distance of differential Hall sensor (1-4) is D2；
First permanent magnet (1-5), the second permanent magnet (1-6), third permanent magnet (1-7) are each attached to circuit board (1-8)
On another side, the first permanent magnet (1-5) and the coaxial arrangement of the first differential Hall sensor (1-2), car door (6) to be measured is by the
When one differential Hall sensor (1-2), acted on the first permanent magnet (1-5), the first differential Hall sensor (1-2) output voltage
Signal S1；Second permanent magnet (1-6) and the second differential Hall sensor (1-3) coaxial arrangement, car door (6) to be measured are passing through second
It when differential Hall sensor (1-3), is acted on the second permanent magnet (1-6), the second differential Hall sensor (1-3) output voltage letter
Number S2；Third permanent magnet (1-7) and the differential Hall sensor of third (1-4) coaxial arrangement, car door (6) to be measured is poor by second
When dynamic Hall sensor (1-4), acted on third permanent magnet (1-7), the differential Hall sensor of third (1-7) output voltage signal
S3；
The circuit board (1-8) is fixed in shell (1-1), and the first differential Hall sensor (1-2), the second differential Hall pass
Sensor (1-3) and the differential Hall sensor of third (1-4) are towards car door motion profile；
The power module, signal processing module and microcontroller are integrated on circuit board (1-8)；
Power module and the first differential Hall sensor (1-2), the second differential Hall sensor (1-3), the differential Hall of third pass
Sensor (1-4), signal processing module, microcontroller and display screen (3) connection, are the first differential Hall sensor (1-2), second
Differential Hall sensor (1-3), the differential Hall sensor of third (1-4), signal processing module, microcontroller and display screen (3)
Power supply；
Signal processing module and the first differential Hall sensor (1-2), the second differential Hall sensor (1-3) and third are differential suddenly
Your sensor (1-4) connects, and amplifies, filters and whole to received voltage signal S1, voltage signal S2 and voltage signal S3
Shape processing, and voltage signal S1, voltage signal S2 and voltage signal S3 are transmitted to microcontroller by treated；
Microcontroller carries out A/D conversion, record to received treated voltage signal S1, voltage signal S2 and voltage signal S3
Receive the time interval t of voltage signal S1 and voltage signal S21And receive the time interval of voltage signal S2 and voltage signal S3
t2, and according to centre distance D1, centre distance D2, vertical range D3, car door quality m and car door radius of gyration R, by formulaCalculate angle theta1, by formulaCalculate angle theta2, by formulaCalculate angle theta3, by formulaDoor closing angular velocity omega is calculated, by formulaDoor closing acceleration alpha is calculated, by formula J=mR2Calculate car door around door-hinge rotary inertia J,
And then door closing speed v is calculated by formula v=ω R, door closing resistance idol M is calculated by M=Ja；
The numeric keypad (2) is fixed on the outer surface of shell (1-1), and connect with microcontroller, transmits to microcontroller
The car door quality m and car door radius of gyration R of user's input；
The display screen (3) is fixed on the outer surface of shell (1-1), and connect with microcontroller, shows the meter of microcontroller
Calculate result；
The fixing piece (4) is fixed on the outer surface of shell (1-1), by arrangements for automotive doors closing speed and resistance idol test device
It is detachably mounted on car body (5), the face that fixing piece (4) is contacted with car body (5) to the center of third Hall switch (1-4)
Vertical range is D3.
2. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the shell
(1-1) is cuboid metal box, and material is metallic aluminium.
3. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the micro-control
Device record processed receives the time interval t of voltage signal S1 and voltage signal S21And receive voltage signal S2's and voltage signal S3
Time interval t2Process are as follows: when receiving voltage signal S1, start internal first timer and start timing, when receiving electricity
When pressing signal S2, stop internal first timer, reads the numerical value of the first timer and calculate reception voltage signal S1 and voltage
The time interval t of signal S21, while starting internal second timer and starting timing, when receiving voltage signal S3, in stopping
The second timer of portion reads the second timers value and calculates the time interval t for receiving voltage signal S2 and voltage signal S32。
4. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the number
Keyboard (2) be matrix keyboard, comprising " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 " ten numbers and
" ", " removing " and " confirmation " 13 keys.
5. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the display
Shield (3) and uses liquid crystal display.
6. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the display
Shield (3) and shows door closing speed v and door closing resistance idol M.
7. arrangements for automotive doors closing speed according to claim 1 and resistance idol test device, which is characterized in that the fixation
Part (4) is soft rubber iron, and on the outer surface of soft rubber iron one side fixing shell (1-1), another side can be absorbed and fixed at
On car body (5).
8. arrangements for automotive doors closing speed according to claim 7 and resistance idol test device, which is characterized in that the rubber
The mode that soft magnet is fixed on shell (1-1) is to paste fixed or be fixed by connecting screw (5).
9. arrangements for automotive doors closing speed according to claim 7 and resistance idol test device, which is characterized in that the signal
Processing module includes integrated operational amplifier and Schmidt trigger.
10. arrangements for automotive doors closing speed according to claim 7 and resistance idol test device, which is characterized in that circuit board
(1-8) is parallel with the back plate of shell (1-1), fixes the back plate for being located proximate to shell (1-1) or is directly anchored to shell (1-1)
Back plate on；Numeric keypad (2) is fixed on the foreboard of shell (1-1), and display screen (3) is fixed on the top plate of shell (1-1),
Fixing piece (4) is fixed on the right side plate of shell (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144505.XA CN109187050A (en) | 2018-09-29 | 2018-09-29 | Arrangements for automotive doors closing speed and resistance idol test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144505.XA CN109187050A (en) | 2018-09-29 | 2018-09-29 | Arrangements for automotive doors closing speed and resistance idol test device |
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| CN109187050A true CN109187050A (en) | 2019-01-11 |
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| CN201811144505.XA Pending CN109187050A (en) | 2018-09-29 | 2018-09-29 | Arrangements for automotive doors closing speed and resistance idol test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304629A (en) * | 2019-07-26 | 2021-02-02 | 上海沃尔沃汽车研发有限公司 | Adjustable automobile closing member closing speed testing device |
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