CN111923961B - Coupling speed protection method based on traction acceleration limitation - Google Patents
Coupling speed protection method based on traction acceleration limitation Download PDFInfo
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- CN111923961B CN111923961B CN202010707322.5A CN202010707322A CN111923961B CN 111923961 B CN111923961 B CN 111923961B CN 202010707322 A CN202010707322 A CN 202010707322A CN 111923961 B CN111923961 B CN 111923961B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004590 computer program Methods 0.000 claims description 9
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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Abstract
The embodiment of the invention provides a coupling speed protection method based on traction acceleration limitation, which comprises the following steps: the VOBC sends a real-time working condition signal to the target vehicle, and the target vehicle receives the real-time working condition signal; if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement; and the automatic train operation device of the target vehicle completes train control according to the emergency braking curve. According to the embodiment of the invention, the aim of increasing the running speed of the target vehicle is fulfilled on the premise of unchangeable speed by reducing the distance between the emergency braking trigger curve and the emergency braking curve, and the range requirement of the coupling speed of the target vehicle is realized.
Description
Technical Field
The invention relates to the technical field of traffic, in particular to a coupling speed protection method based on traction acceleration limitation.
Background
Generally, the requirement on the speed of the train coupler for allowing repeated collision is not higher than 5km/h, meanwhile, the range of the coupled speed is ensured to be 2-5km/h, the speed of the train coupler cannot be over 10km/h when the running speed of the train is 2-5km/h according to the calculation of a safety brake model of IEEE 1474.1, namely, the speed of the train should be over 10km/h under any condition, and the requirement on the highest allowed collision speed of the coupler cannot be met due to the contradiction with the running speed range of the train.
Therefore, a method for preventing coupling speed based on limiting traction acceleration is needed.
Disclosure of Invention
In order to solve the above problem, an embodiment of the present invention provides a coupling speed protection method based on traction acceleration limitation.
In a first aspect, an embodiment of the present invention provides a hitching speed protection method based on limited traction acceleration, including:
the VOBC sends a real-time working condition signal to a target vehicle, and the target vehicle receives the real-time working condition signal;
if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement;
and the automatic train operation device of the target vehicle completes train control according to the emergency braking curve.
Preferably, the narrowing the gap between the emergency braking triggering curve of the target vehicle and the emergency braking curve of the target vehicle specifically includes:
and under the condition of keeping the emergency braking curve of the target vehicle unchanged, improving the emergency braking triggering curve of the target vehicle.
Preferably, the narrowing the gap between the emergency braking triggering curve of the target vehicle and the emergency braking curve of the target vehicle further comprises:
reducing the traction acceleration of the target vehicle.
Preferably, the emergency braking trigger curve indicates that the target vehicle performs emergency braking after the target vehicle reaches a first preset speed.
Preferably, the emergency braking curve represents a curve corresponding to a maximum non-breachable speed of the target vehicle.
In a second aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the hitching speed protection method based on the limited towing acceleration provided in the first aspect of the present invention.
In a third aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of a hitching speed protection method based on limiting traction acceleration provided by the first aspect of the present invention.
According to the coupling speed protection method based on the limitation of the traction acceleration, the distance between the emergency braking trigger curve and the emergency braking curve is reduced, so that the aim of increasing the running speed of the target vehicle is fulfilled on the premise that the speed cannot be changed, and the range requirement of the coupling speed of the target vehicle is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart of a hitching speed protection method based on limited towing acceleration according to an embodiment of the present invention;
fig. 2 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of a hitching speed protection method based on limited towing acceleration according to an embodiment of the present invention, as shown in fig. 1, the method includes:
s1, a VOBC (video object controller) sends a real-time working condition signal to a target vehicle, and the target vehicle receives the real-time working condition signal;
s2, if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement;
and S3, the automatic train operation device of the target vehicle finishes train control according to the emergency braking curve.
Firstly, a vehicle-mounted controller (VOBC) sends a real-time working condition signal to a target vehicle, the target vehicle receives the real-time working condition signal, if the real-time working condition signal received by the target vehicle is a coupling working condition signal, the target vehicle enters a coupling working condition, under the condition that the vehicle is coupled, the maximum traction acceleration output by the target vehicle is limited, and the VOBC reduces the difference between an emergency braking trigger curve of the target vehicle and an emergency braking curve of the target vehicle according to the maximum traction acceleration limited by the target vehicle. Taking a train as an example for explanation, since the emergency braking trigger curve represents the situation that the train performs emergency braking after the train reaches a certain speed, the emergency braking curve represents the curve of the speed which the train can not break through, that is, the highest speed which the train can reach, and then an automatic train operation device (ATO for short) completes the control of the target vehicle according to the emergency braking curve.
The emergency braking means that when the target vehicle encounters an emergency in the running process, a driver quickly and correctly uses a brake to stop the vehicle within the shortest distance.
According to the coupling speed protection method based on the limitation of the traction acceleration, the distance between the emergency braking trigger curve and the emergency braking curve is reduced, so that the aim of increasing the running speed of the target vehicle is fulfilled on the premise that the speed cannot be changed, and the range requirement of the coupling speed of the target vehicle is met.
On the basis of the foregoing embodiment, preferably, the narrowing the gap between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle specifically includes:
and under the condition of keeping the emergency braking curve of the target vehicle unchanged, improving the emergency braking triggering curve of the target vehicle.
Specifically, the difference between the emergency braking triggering curve of the target vehicle and the emergency braking curve of the target vehicle is reduced, and the specific implementation method is as follows:
under the condition of keeping the emergency braking curve of the target vehicle unchanged, the emergency braking triggering curve of the target vehicle is improved, and the principle is as follows:
when the target vehicle enters the emergency brake, the target vehicle can not be stopped immediately due to the time delay, and the speed of the target vehicle can be further increased under the action of the traction force of the target vehicle, so that the aim of increasing the running speed of the train on the premise of unchangeable speed can be fulfilled.
On the basis of the above embodiment, preferably, the narrowing a gap between an emergency braking trigger curve of the target vehicle and an emergency braking curve of the target vehicle further includes:
reducing the traction acceleration of the target vehicle.
The train starts emergency braking after meeting an emergency braking triggering curve, because of the existence of time delay, the speed of the train can be continuously increased due to the existence of traction acceleration in the time delay, the emergency braking speed is higher than the emergency braking triggering speed, and the time delay cannot be avoided, so the traction acceleration is reduced, the speed increase generated in the time delay by the emergency braking triggering speed after the traction acceleration is reduced, and the emergency braking speed can be increased.
Fig. 2 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 2, the electronic device may include: a processor (processor) 201, a communication Interface (communication Interface) 202, a memory (memory) 203 and a bus 204, wherein the processor 201, the communication Interface 202 and the memory 203 complete communication with each other through the bus 204. The communication interface 202 may be used for information transfer of an electronic device. The processor 201 may call logic instructions in the memory 203 to perform a method comprising:
the VOBC sends a real-time working condition signal to a target vehicle, and the target vehicle receives the real-time working condition signal;
if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement;
and the automatic train operation device of the target vehicle finishes train control according to the emergency braking curve.
In addition, the logic instructions in the memory 203 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-described method embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission method provided in the foregoing embodiments when executed by a processor, and for example, the method includes:
the VOBC sends a real-time working condition signal to a target vehicle, and the target vehicle receives the real-time working condition signal;
if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement;
and the automatic train operation device of the target vehicle completes train control according to the emergency braking curve.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A coupling speed protection method based on traction acceleration limitation is characterized by comprising the following steps:
the VOBC sends a real-time working condition signal to a target vehicle, and the target vehicle receives the real-time working condition signal;
if the real-time working condition signal is a coupling working condition signal, the target vehicle limits the maximum traction acceleration output by the target vehicle, and the VOBC reduces the difference between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle according to the limited maximum traction acceleration of the target vehicle so as to enable the coupling speed of the target vehicle to meet the preset requirement;
the automatic train operation device of the target vehicle finishes controlling the train according to the emergency braking curve;
the narrowing of the gap between the emergency braking triggering curve of the target vehicle and the emergency braking curve of the target vehicle specifically includes:
under the condition of keeping the emergency braking curve of the target vehicle unchanged, improving the emergency braking triggering curve of the target vehicle;
the narrowing the gap between the emergency braking trigger curve of the target vehicle and the emergency braking curve of the target vehicle, further comprising:
reducing the traction acceleration of the target vehicle.
2. The method of claim 1, wherein the emergency braking trigger curve indicates that the target vehicle is emergency braking after the target vehicle reaches a first predetermined speed.
3. The method of claim 1, wherein the emergency braking profile represents a profile corresponding to a maximum unthreading speed of the target vehicle.
4. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the steps of the method of hitching velocity protection based on limiting traction acceleration according to any one of claims 1 to 3.
5. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the method of limiting traction acceleration based hitching speed protection according to any one of claims 1 to 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010707322.5A CN111923961B (en) | 2020-07-21 | 2020-07-21 | Coupling speed protection method based on traction acceleration limitation |
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| CN202010707322.5A CN111923961B (en) | 2020-07-21 | 2020-07-21 | Coupling speed protection method based on traction acceleration limitation |
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| CN112528212A (en) * | 2020-12-24 | 2021-03-19 | 交控科技股份有限公司 | Engineering truck EBI curve calculation method and device with ATP protection |
| CN114802367A (en) * | 2022-04-02 | 2022-07-29 | 浙江众合科技股份有限公司 | Target speed calculation method integrating actual running capacity of vehicle |
| CN115195818B (en) * | 2022-06-27 | 2024-04-26 | 交控科技股份有限公司 | Trailer control method, vehicle-mounted device, electronic device and storage medium |
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| KR100627603B1 (en) * | 2004-08-30 | 2006-09-25 | 샬롬엔지니어링 주식회사 | A device for automatically detecting separation of a trainformation |
| DE202014001833U1 (en) * | 2014-02-26 | 2014-04-07 | Daniel Hartley | Innovative safety concept for high-speed trains / freight trains |
| CN109421766B (en) * | 2017-09-04 | 2022-03-11 | 上海稳得新能源科技有限公司 | Operation method of intelligent car coupler system |
| CN109649409B (en) * | 2018-12-21 | 2020-04-17 | 交控科技股份有限公司 | Train marshalling processing method in urban rail transit |
| CN110877618B (en) * | 2019-12-06 | 2020-10-27 | 中车大连电力牵引研发中心有限公司 | Automatic trailer control system and method for railway locomotive |
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