CN209535096U - The real-time wheel footpath measurement of rail vehicle and vehicle control system - Google Patents
The real-time wheel footpath measurement of rail vehicle and vehicle control system Download PDFInfo
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- CN209535096U CN209535096U CN201920265179.1U CN201920265179U CN209535096U CN 209535096 U CN209535096 U CN 209535096U CN 201920265179 U CN201920265179 U CN 201920265179U CN 209535096 U CN209535096 U CN 209535096U
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Abstract
The utility model relates to a kind of real-time wheel footpath measurement of rail vehicle and vehicle control systems, including speed measurement module and vehicle control module, the velocity information that speed measurement module obtains passes to vehicle control module, vehicle control module shows the speed and control for brake of rail vehicle with this, speed measurement module includes the measure speed gears and Hall sensor, the distance measuring sensor being set on rail vehicle framework being set at rail vehicle axletree core, and distance measuring sensor is for measuring the distance between distance measuring sensor and orbital plane.Speed can be effectively shown according to actually measured wheel footpath and control for brake is carried out to vehicle, improve accurately testing the speed and control for brake for rail vehicle.
Description
Technical field
The utility model relates to rail vehicle control technologies, more particularly, to a kind of measurement of rail vehicle real-time route and vehicle
Control system.
Background technique
Railway vehicle wheel diameter directly participates in speed calculating, and speed plays a very important role for vehicle control.Speed meter
The main stream approach calculated are as follows: * 2 π R (radius of wheel) of V (speed)=f (vehicle wheel rotational speed).If it is less than normal to calculate wheel footpath, calculate
Obtained speed is lower than true vehicle degree, on the contrary, wheel footpath is bigger than normal, and the speed being calculated is higher than true speed if calculated, this
The deviation of sample has a certain impact for vehicle control.On the other hand, it is different from normal road vehicle, when rail vehicle braking is
Desired deceleration, excessive and too small brake force will affect stopping power, not up to standard so as to cause braking distance.For folder
This braking model of pincers-brake disc, wheel footpath directly affect the calculating of brake force.If it is bigger than normal to calculate wheel footpath, calculated
Brake force is more than required brake force, causes braking distance too short.If it is less than normal to calculate wheel footpath on the contrary, calculated brake force
Lower than required brake force, lead to poor stop.
Most rail vehicles are steel wheel, need spinning roller after runing certain kilometer, are then needed after spinning roller aobvious in HMI manually
Display screen or braking maintenance port input true wheel footpath, to reduce wheel footpath error as far as possible, but can not accomplish real-time automatic input
Wheel footpath.The rubber tyre rail vehicle occurred in recent years, although rubber tyre abrasion loss is substantially reduced compared with steel wheel abrasion loss, rubber
For rubber tire tire because load-carrying causes wheel diameter variation to be far longer than steel wheel, this means that different load-carryings has different wheel footpaths.At present
The preferable wheel footpath measurement method in real time of temporary nothing, can only take fixed wheel footpath, in this way to car speed calculating and brake force in design
Accuracy is calculated to have a certain impact.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of measurement of rail vehicle real-time route and vehicle controls
System, can solve existing rail vehicle wheel footpath can not real-time typing automatically, causing car speed and brake force to calculate has deviation
The problem of, while deviation caused by can solve real-time speed due to wheel diameter deviation.
The technical solution adopted by the utility model to solve its technical problems is that: a kind of real-time wheel footpath measurement of rail vehicle with
Vehicle control system, including speed measurement module and vehicle control module, the speed letter that the speed measurement module obtains
Breath passes to vehicle control module, and vehicle control module shows the speed and control for brake of rail vehicle, the speed with this
Measurement module includes being set to measure speed gears at rail vehicle axletree core and Hall sensor, being set to rail vehicle framework
On distance measuring sensor, the distance measuring sensor is for measuring the distance between distance measuring sensor and orbital plane, by calculating
To real-time wheel footpath.
Further specifically, the distance measuring sensor is ultrasonic distance-measuring sensor.
Further specifically, distance measuring sensor at least two on each framework of the rail vehicle, is calculated
Multiple real-time wheel footpaths be averaged.
Further specifically, being respectively provided with distance measuring sensor on the framework of the rail vehicle wheel two sides.
Further specifically, a distance measuring sensor is at least arranged on the framework of the rail vehicle wheel side.
Further specifically, the vehicle control module includes that vehicle control center and vehicle control center communicate
Control for brake center and display unit for showing speed and wheel footpath, the control for brake center receive tachometric survey
The information of module is simultaneously communicated and is controlled with vehicle control center, is shown by display unit.
Further specifically, the vehicle control module includes the external input unit with vehicle control center communication.
Further specifically, the distance measuring sensor is located at wheel central spindle hereinafter, the distance measuring sensor is apart from vehicle
The vertical range for taking turns central spindle is H1, and vertical range of the distance measuring sensor apart from orbital plane is H2, and real-time wheel footpath is H=H1
+H2。
Further specifically, the distance measuring sensor is located at wheel central spindle or more, the distance measuring sensor is apart from vehicle
The vertical range for taking turns central spindle is H1, and vertical range of the distance measuring sensor apart from orbital plane is H2, and real-time wheel footpath is H=
H2-H1。
The beneficial effects of the utility model are: 1, for do not need manually to pass through after steel wheel spinning roller drivers' cab display screen or
Wheel footpath after maintenance port input measurement can be transmitted to vehicle control module after automatic data measured；2, for because load-carrying cause compared with
The rubber wheeled vehicle of big wheel diameter variation, can accurately measure the true wheel footpath under different loads, can be transmitted to after automatic data measured
Vehicle control module；3, it may be used as car weight redundant computation, before vehicle launch, wheel static state wheel footpath measured, according to Wheel deflection
Amount and tire rigidity, calculate true car weight, the backup as air spring load signal；It can be logical according to actually measured wheel footpath
The control for calculating display speed and vehicle braking is crossed, accurate positioning and the control for brake of rail vehicle are improved.
Detailed description of the invention
Fig. 1 is the flow chart of Tthe utility model system；
Fig. 2 is the structural schematic diagram of the utility model speed measurement module.
In figure: 1, wheel；2, framework；3, measure speed gears；4, Hall sensor；5, distance measuring sensor.
Specific embodiment
The utility model is explained in detail with reference to the accompanying drawing.
A kind of real-time wheel footpath measurement of rail vehicle and vehicle control system as shown in Figures 1 and 2, including speed measurement module
And vehicle control module, the velocity information that the speed measurement module obtains pass to vehicle control module, vehicle control
Module shows that the speed and control for brake of rail vehicle, the speed measurement module include being set to rail vehicle wheel with this
Measure speed gears 3 and Hall sensor 4, the distance measuring sensor 5 being set on rail vehicle framework 2, the ranging at 1 central spindle pass
Sensor 5 is obtained by calculation real-time wheel footpath, surveys in this programme for measuring the distance between distance measuring sensor 5 and orbital plane
Ultrasonic distance-measuring sensor is used away from sensor 5, the measurement of distance is carried out by ultrasonic wave, it can also be using other ranging sides
Formula, such as laser ranging etc..
In actual use since it is desired that being measured to the wheel footpath to each wheel 1, therefore can according to need
At least two distance measuring sensors 5 are installed on each framework 2 of rail vehicle and take the average value of the wheel footpath measured in real time, these surveys
It is evenly distributed in away from sensor 5 by the wheel 1 of 2 two sides of framework；It can according to need on the framework 2 for guaranteeing each 1 side of wheel
One distance measuring sensor 5 is installed, the accuracy of real-time measurement wheel footpath is improved.
Rail vehicle is during exercise, inconsistent so as to cause 1 wheel footpath of wheel due to vehicle body load-carrying meeting so that wheel 1 deforms,
And can 1 wheel footpath of wheel be measured and be fed back in real time by way of ultrasonic distance-measuring sensor ranging, according to ultrasonic wave
Distance measuring sensor installation site can be divided into three kinds and be calculated, the first, the installation position of ultrasonic distance-measuring sensor is installed
It sets in the horizontal plane where 1 central spindle of track wheel of vehicle hereinafter, according to Fig. 1, ultrasonic distance-measuring sensor is apart from 1 axis of wheel
The vertical range of core is set as H1, this distance is fixed value, ultrasonic distance-measuring sensor after ultrasonic distance-measuring sensor installation
Vertical range apart from orbital plane is set as H2, this distance can change according in vehicle load and driving process, and real
When wheel footpath H=H1+H2, due to H2 can change so that in real time wheel footpath H be also changed；Second, ultrasonic distance measurement is passed
The installation site of sensor is arranged in where 1 central spindle of track wheel of vehicle above the horizontal plane, and ultrasonic distance-measuring sensor is apart from vehicle
The vertical range for taking turns 1 central spindle is set as H1, and vertical range of the ultrasonic distance-measuring sensor apart from orbital plane is set as H2, and H1 is solid
Definite value, H2 are changing value, and wheel footpath H=H2-H1 in real time, real-time wheel footpath H can follow the variation of H2 and change；The third,
The installation site of ultrasonic distance-measuring sensor is arranged on the horizontal plane where 1 central spindle of track wheel of vehicle, above-mentioned setting
The value of H1 is 0, therefore the value H2 of vertical range of the ultrasonic distance-measuring sensor apart from orbital plane is real-time wheel footpath H, real-time wheel footpath H
Change with the variation of H2.
Vehicle control module includes vehicle control center, the control for brake center communicated with vehicle control center and is used for
Show the display unit of speed and wheel footpath, the control for brake center receives the information of speed measurement module and calculated
Brake force communicates later and is carried out with vehicle control center control for brake, shown by display unit, vehicle control module
It further include the external input unit with vehicle control center communication, external input unit includes keyboard, mouse and touch screen, side
Just operator can voluntarily calculate brake force by the data received to the input control of various parameters, realize accurate system
It is dynamic.
The calculating of speed is according to V=f_ wheelThe π of × H × 2 is calculated, wherein f_ wheelFor wheel rotation frequency, H is to pass through above-mentioned three
The real-time wheel footpath that kind mode measures；Wheel rotation frequency f_ wheel=f_ motor/ i, wherein f_ motorPass through Hall sensor 4 and the tooth that tests the speed
Wheel 3 measures, and i is motor drive ratio, and the motor rotation frequency that Hall sensor 4 is read is f_ motor。
Above-mentioned calculation formula is designed as software to be embedded in vehicle control center, it can be with by the detection to real-time wheel footpath
Quickly obtain speed, the numerical value of speed and wheel footpath can be shown by display unit, facilitate operator can be to rail
The state of road vehicle is adjusted, and can accurately be controlled speed and vehicle braking by these numerical value, be improved rail vehicle row
The safety sailed.
To sum up, the real-time wheel footpath detection of ultrasonic wave, and the wheel footpath data measured are transmitted to vehicle control center and control for brake
Center calculates for speed and brakes force compensating input；Hall sensor 4 examines vehicle revolving speed with the cooperation of measure speed gears 3
It surveys, and the revolving speed measured is transmitted to vehicle control center, calculated for speed；Vehicle control center is receiving wheel footpath and wheel
After 1 revolving speed, speed is calculated；It after control for brake center receives real-time wheel footpath, inputs, calculates required when braking as brake calculation
Brake force；It can be inputted according to the real-time wheel footpath of variation automatic measurement of wheel footpath, the true carrying of vehicle can be calculated, improve vehicle
Traveling safety.
It is emphasized that: the above is only the preferred embodiment of the present utility model, not appoints to the utility model
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (9)
1. a kind of real-time wheel footpath of rail vehicle measures and vehicle control system, including speed measurement module and vehicle control mould
Block, the velocity information that the speed measurement module obtains pass to vehicle control module, and vehicle control module shows rail with this
The speed and control for brake of road vehicle, which is characterized in that the speed measurement module includes being set to rail vehicle wheel (1)
Measure speed gears (3) and Hall sensor (4), the distance measuring sensor (5) being set on rail vehicle framework (2), institute at central spindle
Distance measuring sensor (5) are stated for measuring the distance between distance measuring sensor (5) and orbital plane, real-time wheel footpath is obtained by calculation.
2. the real-time wheel footpath of rail vehicle according to claim 1 measures and vehicle control system, which is characterized in that described
Distance measuring sensor (5) is ultrasonic distance-measuring sensor.
3. the real-time wheel footpath of rail vehicle according to claim 1 or 2 measures and vehicle control system, which is characterized in that institute
Distance measuring sensor (5) at least two on each framework (2) for the rail vehicle stated, the multiple real-time wheel footpaths being calculated are made even
Mean value.
4. the real-time wheel footpath of rail vehicle according to claim 3 measures and vehicle control system, which is characterized in that described
Distance measuring sensor (5) are respectively provided on the framework (2) of rail vehicle wheel (1) two sides.
5. the real-time wheel footpath of rail vehicle according to claim 4 measures and vehicle control system, which is characterized in that described
One distance measuring sensor (5) is at least set on the framework (2) of rail vehicle wheel (1) side.
6. the real-time wheel footpath of rail vehicle according to claim 1 measures and vehicle control system, which is characterized in that described
Vehicle control module includes vehicle control center, with the control for brake center of vehicle control center communication and for showing speed
And the display unit of wheel footpath, the control for brake center receive the information of speed measurement module and lead to vehicle control center
It interrogates and controls, shown by display unit.
7. the real-time wheel footpath of rail vehicle according to claim 6 measures and vehicle control system, which is characterized in that described
Vehicle control module includes the external input unit with vehicle control center communication.
8. the real-time wheel footpath of rail vehicle according to claim 1 measures and vehicle control system, which is characterized in that described
Distance measuring sensor (5) is located at wheel (1) central spindle hereinafter, the vertical range of the distance measuring sensor (5) apart from wheel (1) central spindle
For H1, vertical range of the distance measuring sensor (5) apart from orbital plane is H2, and real-time wheel footpath is H=H1+H2.
9. the real-time wheel footpath of rail vehicle according to claim 1 measures and vehicle control system, which is characterized in that described
Distance measuring sensor (5) is located at wheel (1) central spindle or more, vertical range of the distance measuring sensor (5) apart from wheel (1) central spindle
For H1, vertical range of the distance measuring sensor (5) apart from orbital plane is H2, and real-time wheel footpath is H=H2-H1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265179.1U CN209535096U (en) | 2019-03-01 | 2019-03-01 | The real-time wheel footpath measurement of rail vehicle and vehicle control system |
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|---|---|---|---|
| CN201920265179.1U CN209535096U (en) | 2019-03-01 | 2019-03-01 | The real-time wheel footpath measurement of rail vehicle and vehicle control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979403A (en) * | 2019-12-16 | 2020-04-10 | 中铁工程机械研究设计院有限公司 | Wheel diameter compensation method for suspension type rail train air tire |
| EP4116670A1 (en) * | 2021-07-07 | 2023-01-11 | AGCO International GmbH | Mobile machine and method |
-
2019
- 2019-03-01 CN CN201920265179.1U patent/CN209535096U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979403A (en) * | 2019-12-16 | 2020-04-10 | 中铁工程机械研究设计院有限公司 | Wheel diameter compensation method for suspension type rail train air tire |
| EP4116670A1 (en) * | 2021-07-07 | 2023-01-11 | AGCO International GmbH | Mobile machine and method |
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Effective date of registration: 20201124 Address after: 4301, 43 / F, building 3, yard 1, East Automobile Museum Road, Fengtai District, Beijing 100071 Patentee after: CHINA RAILWAY HI-TECH INDUSTRY Corp.,Ltd. Patentee after: CHINA RAILWAY RAIL TRANSPORTATION EQUIPMENT Co.,Ltd. Address before: 210 000 Buyue Road, 29 Qiaolin Street, Pukou District, Nanjing City, Jiangsu Province, 12-253 Patentee before: CHINA RAILWAY RAIL TRANSPORTATION EQUIPMENT Co.,Ltd. |