CN111301486A - Railway vehicle carriage overload control method and control system - Google Patents
Railway vehicle carriage overload control method and control system Download PDFInfo
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- CN111301486A CN111301486A CN202010136611.4A CN202010136611A CN111301486A CN 111301486 A CN111301486 A CN 111301486A CN 202010136611 A CN202010136611 A CN 202010136611A CN 111301486 A CN111301486 A CN 111301486A
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- 229910000831 Steel Inorganic materials 0.000 abstract description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
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Abstract
The invention discloses a railway vehicle carriage overload control method and a control system; the control method judges the load of each carriage by combining the running speed of the vehicle and the pressure of the air spring, does not judge whether the vehicle load is overloaded when the vehicle is detected to run at a preset speed, avoids the situation that the vehicle body floats and sinks due to the line conditions such as unsmooth steel rails, curves and ramps during running, further causes dynamic change of the internal pressure of the air spring and reports an excessive alarm by mistake, and improves the reliability of overload control of the carriages of the railway vehicle. The control method of the invention presets the early warning value and the alarm value in advance, realizes the multi-stage understanding of carriage bearing, and performs early warning before the vehicle is overloaded, so that even if the crew adjusts the passenger load, once the carriage bearing is detected to be greater than the alarm value, the vehicle is prohibited to start in addition to the alarm, thereby greatly improving the form safety of the rail vehicle.
Description
Technical Field
The invention relates to the technical field of vehicle overload, in particular to a railway vehicle carriage overload control method and a railway vehicle carriage overload control system.
Background
A rail vehicle is an important vehicle, and the rail vehicle has a characteristic of large passenger capacity, and the vehicle is usually controlled within an overload range in order to ensure the safety of vehicle operation.
The overload of the prior railway vehicle mainly considers the bearing condition of the whole vehicle, controls the weight of the whole vehicle within the operation requirement, neglects the bearing capacity of a single carriage, and causes hidden troubles in driving if the passenger is unevenly distributed in the carriage and exceeds the maximum load of the single vehicle.
Therefore, how to improve the accuracy of the overload control of the railway vehicle carriage is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention provides a railway vehicle carriage overload control method, wherein a railway vehicle comprises at least two carriages, each carriage is supported on a bogie frame through an air spring, and the railway vehicle carriage overload control method comprises the following steps:
s1, acquiring the pressure value of the air spring corresponding to each carriage in real time and the running speed of the vehicle in the current state;
s2, when the running speed of the vehicle in the current state is less than the preset value,
judging the magnitude of the air spring pressure value corresponding to each obtained carriage and a pre-stored early warning value, and the magnitude of the air spring pressure value and a pre-stored warning value, and when the air spring pressure value corresponding to one carriage is larger than the early warning value and smaller than the warning value, sending an overload early warning prompt signal and displaying the carriage corresponding to the air spring pressure value larger than the early warning value;
and when the pressure value of the air spring corresponding to one carriage is greater than the alarm value, sending an overload alarm prompt signal and displaying the carriage corresponding to the pressure value greater than the alarm value.
The control method of the invention judges the load of each carriage by combining the running speed of the vehicle and the pressure of the air spring, when the vehicle is detected to run at the preset speed, whether the vehicle load is overloaded or not is not judged, the phenomenon that the vehicle body floats and sinks due to the line conditions of unsmooth steel rails, curves, ramps and the like during running so as to cause dynamic change of the internal pressure of the air spring and report an excessive alarm is avoided, and the reliability of the overload control of the carriages of the rail vehicle is improved. The control method of the invention presets the early warning value and the alarm value in advance, realizes the multi-stage understanding of carriage bearing, and performs early warning before the vehicle is overloaded, so that even if the crew adjusts the passenger load, once the carriage bearing is detected to be greater than the alarm value, the vehicle is prohibited to start in addition to the alarm, thereby greatly improving the form safety of the rail vehicle.
Optionally, the preset value is 0-6 km/h.
Optionally, the front end portion and the rear end portion of each car are provided with the bogie frame, two air springs which are bilaterally symmetrical are arranged between each bogie frame and the car, and the step S1 specifically includes: acquiring pressure values of four air springs corresponding to each carriage; in step S2, an average pressure value is first calculated according to the pressure values of the four air springs corresponding to the same car, and the average pressure value is compared with the warning value or the warning value.
Optionally, when the air spring pressure value is greater than the early warning value and less than or equal to the alarm value, only the compartment information corresponding to the air spring pressure value is displayed on one or more of a display screen in a crew room, a network display screen in a mechanic room or a network display screen in a cab console, and the vehicle can run normally.
Optionally, when the air spring pressure value is greater than the alarm value, the carriage information corresponding to the air spring pressure value is simultaneously displayed on a crew room display screen, a mechanic room network display screen, a cab console network display screen and a carriage inside and outside display screen, and the carriage door buzzer is controlled to sound and the vehicle is controlled to be in a non-driving state.
Optionally, the early warning values of all the cars are the same, and the early warning value F1 is G3+ G1+ W1+ G2; wherein G3 is the expected load of a single carriage and has the unit of Newton (N); g1 is the unit of the self vehicle weight of the single carriage in Newton (N), the error value W1 of the air spring pressure value is in Newton (N), and G2 is the additional weight in Newton (N).
Optionally, the alarm values of all the cars are the same, and the alarm value F2 is G; wherein G is the axle weight of the bogie of the single carriage, and the unit is Newton (N).
Alternatively, when it is determined in step S2 that the traveling speed of the vehicle in the current state is greater than or equal to the preset value, the process proceeds to step S1.
In addition, the invention also provides a railway vehicle carriage overload control system, which comprises the following components:
the pressure sensor is used for detecting the pressure value of the air spring corresponding to each carriage;
the controller comprises the railway vehicle carriage overload control method, and is electrically connected with the pressure sensors to acquire the pressure value of each air spring.
Optionally, the controller is a rail vehicle network system, the rail vehicle network system includes a display screen, and an input area is provided on the display screen to input the early warning value and the warning value.
The control method is integrated into the railway vehicle carriage overload control system, so the control system also has the technical effects of the control method.
Drawings
Fig. 1 is a flow chart of a method for controlling overload of a railway vehicle carriage according to the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the present invention in detail with reference to the control method, the control system, the drawings and the specific embodiments.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for controlling an overload of a railway vehicle carriage according to the present invention.
The invention provides a railway vehicle carriage overload control method, wherein a railway vehicle comprises at least two carriages, each carriage is supported on a bogie frame through an air spring, and the railway vehicle carriage overload control method comprises the following steps:
s1, acquiring the pressure value of the air spring corresponding to each carriage in real time and the running speed of the vehicle in the current state;
usually, bogies are arranged at both ends of each carriage, two air springs are arranged on each bogie frame, and the two air springs on the same frame are symmetrically arranged about a longitudinal center plane. That is, each car is supported on two frames by four air springs.
In the step S1, only the pressure value of one air spring may be detected, but of course, in order to reduce the error as much as possible, the pressure values of four air springs may be detected, the pressure value of the section of the vehicle compartment may be obtained from the pressure values of the four air springs, the pressure value of the section of the vehicle compartment may be an average value of the four pressure values, and may also be calculated in other manners.
S2, when the running speed of the vehicle in the current state is smaller than a preset value, the magnitude of the air spring pressure value and a pre-stored early warning value is the same, and the magnitude of the air spring pressure value and a pre-stored warning value is the same, when the air spring pressure value corresponding to one carriage is larger than the early warning value and smaller than the warning value, an overload early warning prompt signal is sent out, the carriage corresponding to the air spring pressure value larger than the early warning value is displayed, and the acquired carriage corresponding to each section is judged;
and when the pressure value corresponding to one carriage is greater than the alarm value, sending an overload alarm prompt signal and displaying the carriage corresponding to the pressure value greater than the alarm value.
That is, when the traveling speed of the vehicle in the current state is greater than or equal to the preset value, the step S2 is not performed, and the step S1 may be returned to; otherwise, go to step S2;
the preset value can be set according to a specific vehicle, the range of the preset value can be 0-6km/h, in a specific embodiment, the preset value is 5km/h, of course, the preset value can also be other values, and the preset value is mainly set for judging whether the rail vehicle is in a running state or not. When the running speed in the current state is greater than or equal to the preset value, the vehicle is considered to be in the form state, and the load of the carriage is not judged at the moment, so that the situation that false alarm is caused due to shaking, curves and the like in the running process of the vehicle can be avoided, and the reliability of overload alarm is greatly improved.
The early warning value and the warning value can be specifically set according to specific vehicles, and all the carriages can be the same, namely each carriage corresponds to one group of the early warning value and the warning value, and the early warning value and the warning value of each carriage can also be different. The technical scheme and the technical effect are continuously introduced by taking the corresponding same early warning value and alarm value of each carriage as an example.
The vehicle-mounted state of each carriage is roughly divided into three stages, wherein the stage is smaller than the early warning value, is between the early warning value and the alarm value and is larger than the alarm value, when the stage is smaller than the early warning value, the load of the carriage is completely positioned in a safety range, when the stage is between the early warning value and the alarm value, the control method can send an overload early warning prompt signal and display the carriage corresponding to the pressure value larger than the early warning value, namely, a driver or a crew member is prompted that the carriage is about to reach the load safety range limit, the crew member can timely adjust the carriage load at the moment to ensure that the load of the carriage is positioned in the safety range limit, and the normal starting and the form of the vehicle cannot be influenced at. When the detected pressure is greater than the alarm value, the situation that the pressure of the carriage exceeds the bearing safety limit at the moment is shown, the control method sends an overload alarm prompt signal and displays the carriage corresponding to the pressure value greater than the alarm value, and at the moment, the passengers in the carriage need to be shunted to enable the pressure of the carriage to be less than the alarm value, so that the vehicle can be started and run.
From the above description, the control method in the invention judges the load of each carriage by combining the vehicle running speed and the pressure of the air spring, when the vehicle is detected to run at the preset speed, whether the vehicle load is overloaded or not is not judged, thereby avoiding the situation that the vehicle body floats and sinks due to the line conditions such as uneven steel rails, curves and ramps during the running of the vehicle, further causing the dynamic change of the internal pressure of the air spring to report an excessive alarm by mistake, and improving the reliability of the overload control of the carriages of the rail vehicle. The control method of the invention presets the early warning value and the alarm value in advance, realizes the multi-stage understanding of carriage bearing, and performs early warning before the vehicle is overloaded, so that even if the crew adjusts the passenger load, once the carriage bearing is detected to be greater than the alarm value, the vehicle is prohibited to start in addition to the alarm, thereby greatly improving the form safety of the rail vehicle.
As described above, the front end portion or the rear end portion of each car is provided with the bogie frame, and two air springs which are bilaterally symmetrical are provided between each bogie frame and the car, and the step S0 specifically includes: acquiring pressure values of four air springs corresponding to each carriage; in step S2, an average pressure value is first calculated according to the pressure values of the four air springs corresponding to the same car, and the average pressure value is compared with the warning value or the alarm value.
This can improve the accuracy of control.
In a specific embodiment, when the pressure value is greater than the early warning value and less than or equal to the warning value, only the carriage information corresponding to the pressure value is displayed on one or more of the display screen in the crew room, the network display screen in the mechanic room or the network display screen of the cab console, and the vehicle can run normally.
At this time, only the driver or the crew member is prompted to pay attention to the evacuation of the passenger flow.
When the pressure value is greater than the alarm value, the carriage information corresponding to the pressure value is simultaneously displayed on a display screen in a crew room, a network display screen in a mechanic room, a network display screen in a cab console and a display screen inside and outside the carriage, and a buzzer of a carriage door is controlled to sound and the vehicle is controlled to be in a non-driving state.
In the above embodiments, when the load of a single car is greater than the warning value, in addition to the driver or the crew member, the passenger in the car is also reminded, and the car is in an overload state and the vehicle is prohibited from starting.
In the above embodiments, the warning values of the cars are the same, and the warning value F1 is G3+ G1+ W1+ G2; wherein G3 is the expected load of a single carriage and has the unit of N (Newton); g1 is the unit of the self weight of the single carriage N (Newton), the error value W1 of the air spring pressure value is the unit of N (Newton), G2 is the additional weight N (Newton).
Similarly, in the above embodiments, the warning values of the cars are the same, and the warning value F2 is G; wherein G is the axle weight of the bogie of the single carriage, and the unit is N (Newton). The axle weight is the rated maximum weight capable of being borne by the motor train unit bogie.
In addition, the invention also provides a railway vehicle carriage overload control system, which comprises the following components:
the pressure sensor is used for detecting the pressure value of the air spring corresponding to each carriage;
and the controller comprises the railway vehicle carriage overload control method, and is electrically connected with each pressure sensor to acquire the pressure value of each air spring.
In one embodiment, the controller is a rail vehicle network system including a display screen having an input area for inputting the warning value and the alarm value.
The control method is integrated into the railway vehicle carriage overload control system, so the control system also has the technical effects of the control method.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A rail vehicle carriage overload control method is characterized in that a rail vehicle comprises at least two carriages, each carriage is supported on a bogie frame through an air spring, and the rail vehicle carriage overload control method comprises the following steps:
s1, acquiring the pressure value of the air spring corresponding to each carriage in real time and the running speed of the vehicle in the current state;
s2, when the running speed of the vehicle in the current state is smaller than a preset value, judging the magnitude of the air spring pressure value corresponding to each obtained carriage and a pre-stored early warning value, and the magnitude of the air spring pressure value and a pre-stored warning value, and when the air spring pressure value corresponding to one carriage is larger than the early warning value and smaller than the warning value, sending an overload early warning prompt signal and displaying the carriage corresponding to the air spring pressure value larger than the early warning value;
and when the pressure value of the air spring corresponding to one carriage is greater than the alarm value, sending an overload alarm prompt signal and displaying the carriage corresponding to the pressure value greater than the alarm value.
2. The method of claim 1, wherein the predetermined value is 0-6 km/h.
3. The method for controlling overload on railway vehicle carriage according to claim 1, wherein the bogie frame is disposed at the front end and the rear end of each carriage, two air springs are disposed between each bogie frame and the carriage, and the step S1 is specifically: acquiring pressure values of four air springs corresponding to each carriage; in step S2, an average pressure value is first calculated according to the pressure values of the four air springs corresponding to the same car, and the average pressure value is compared with the warning value or the warning value.
4. The method as claimed in claim 1, wherein when the air spring pressure value is greater than the pre-warning value and less than or equal to the warning value, only the car information corresponding to the air spring pressure value is displayed on one or more of a display screen in a crew room, a network display screen in a mechanic room or a network display screen in a cab console, and the car can run normally.
5. The method for controlling overload of the carriage of the railway vehicle as claimed in claim 1, wherein when the pressure value of the air spring is greater than the alarm value, the carriage information corresponding to the pressure value of the air spring is simultaneously displayed on a display screen in a crew room, a network display screen in a mechanic room, a network display screen in a cab console, and a display screen inside and outside the carriage, and a buzzer of the carriage door is controlled to sound and the vehicle is controlled to be in a non-driving state.
6. The method for controlling overload of railway vehicle carriages according to claim 1, wherein the early warning values of the carriages are the same, and the early warning value F1 is G3+ G1+ W1+ G2; wherein G3 is the expected load of a single carriage and has the unit of Newton (N); g1 is the unit of the self vehicle weight of the single carriage in Newton (N), the error value W1 of the air spring pressure value is in Newton (N), and G2 is the additional weight in Newton (N).
7. The method for controlling overload of railway vehicle carriages according to any one of claims 1 to 6, wherein the alarm value of each carriage is the same, and the alarm value F2 ═ G; wherein G is the axle weight of the bogie of the single carriage, and the unit is Newton (N).
8. The method for controlling overload on a railway vehicle carriage as claimed in any one of claims 1 to 6, wherein when it is determined in the step S2 that the traveling speed of the vehicle in the current state is greater than or equal to the preset value, the step S1 is continuously performed.
9. A rail vehicle car overload control system, comprising the following components:
the pressure sensor is used for detecting the pressure value of the air spring corresponding to each carriage;
a controller including the rail vehicle body overload control method according to any one of claims 1 to 8, the controller being electrically connected to each of the pressure sensors to acquire a pressure value of each of the air springs.
10. The rail vehicle car overload control system of claim 9, wherein the controller is a rail vehicle network system including a display screen having an input area disposed thereon for inputting the warning value and the warning value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136611.4A CN111301486A (en) | 2020-03-02 | 2020-03-02 | Railway vehicle carriage overload control method and control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136611.4A CN111301486A (en) | 2020-03-02 | 2020-03-02 | Railway vehicle carriage overload control method and control system |
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| CN111301486A true CN111301486A (en) | 2020-06-19 |
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| CN202010136611.4A Pending CN111301486A (en) | 2020-03-02 | 2020-03-02 | Railway vehicle carriage overload control method and control system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080672A (en) * | 2016-06-21 | 2016-11-09 | 中车唐山机车车辆有限公司 | A kind of train overload detection system and method thereof |
| CN205916151U (en) * | 2016-08-30 | 2017-02-01 | 华东交通大学 | Be applied to security alarm device of hillside orchard single -rail transportation machine |
| CN207875674U (en) * | 2018-01-10 | 2018-09-18 | 中车青岛四方机车车辆股份有限公司 | A kind of overload warning system of rail vehicle and station information linkage |
| CN110001677A (en) * | 2018-01-04 | 2019-07-12 | 中车长春轨道客车股份有限公司 | A kind of overcrowding detection system of EMU and method |
-
2020
- 2020-03-02 CN CN202010136611.4A patent/CN111301486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080672A (en) * | 2016-06-21 | 2016-11-09 | 中车唐山机车车辆有限公司 | A kind of train overload detection system and method thereof |
| CN205916151U (en) * | 2016-08-30 | 2017-02-01 | 华东交通大学 | Be applied to security alarm device of hillside orchard single -rail transportation machine |
| CN110001677A (en) * | 2018-01-04 | 2019-07-12 | 中车长春轨道客车股份有限公司 | A kind of overcrowding detection system of EMU and method |
| CN207875674U (en) * | 2018-01-10 | 2018-09-18 | 中车青岛四方机车车辆股份有限公司 | A kind of overload warning system of rail vehicle and station information linkage |
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Application publication date: 20200619 |
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