CN113658479B - Train gas circuit simulation method, device and medium - Google Patents

Abstract

The application provides a train gas circuit simulation method, a device and a medium, wherein the method comprises the following steps: according to the gas path structure of the train, constructing a simulation train model, wherein the simulation train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder; responding to a first control instruction aiming at a simulated train model, controlling a simulated brake valve to act, and controlling the simulated brake valve to output a brake signal to a simulated train pipe of a simulated train section; after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe; and determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder. The method can conveniently and intuitively display the condition change in the train gas path.

Description

Train gas circuit simulation method, device and medium

Technical Field

The application relates to the field of train simulation, in particular to a train gas circuit simulation method, device and medium.

Background

In China, which is a big-ground world, railways are the most important transportation means and are the backbones of the national transportation system. Over twenty years, the speed of the train is increased again and again from the traditional green train to the present harmony, and the number of the trains is also increased.

The speed of the train is increased again and again, and higher requirements are placed on the braking system of the train. The train can be braked safely, so that the safety of train braking is important guarantee for running safely, and if the safety of train braking cannot be guaranteed, the train cannot be started, and safe running cannot be guaranteed.

The change of the air pressure in the air path of the train is closely related to whether the train can safely brake or not, so that a train driver and an overhauling personnel must be skilled in grasping the change condition of the air path of the train, thereby having the capability of timely managing and processing the abnormal condition in the air path. However, because it is difficult to call a special train to arrange a real vehicle for special training, and the space area of the cab of the real vehicle is small, the number of accommodating students is extremely limited, so that the time for training the students is small; even if students train in the field in a following mode, the system and visual training are still lacking, so that the capacities of normal inspection, abnormal condition judgment and processing of the air paths of train crews and maintenance personnel still need to be improved.

Disclosure of Invention

In view of the above, the present application aims to provide a train gas circuit simulation method, device and medium, which can conveniently and intuitively display the condition change in a train gas circuit, so as to fully train students to perform normal inspection and abnormal condition judgment and processing on the gas circuit.

The embodiment of the application provides a train gas circuit simulation method, which comprises the following steps:

constructing a simulation train model corresponding to the train according to the gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

responding to a first control instruction aiming at the simulated train model, controlling the action of the simulated brake valve, and controlling the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe;

and determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

In some embodiments, the train gas circuit simulation method further includes:

the simulation vehicle section also comprises a simulation angle cock, a simulation cut-off cock and a connecting hose;

responding to a second control instruction aiming at the simulated train model, and controlling the simulated train section to have a fault condition; the fault condition includes at least one of: the simulated angle cock is closed, the simulated cutoff cock is closed and the connecting hose is disconnected;

the simulated train section in the fault condition responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe under the fault condition according to the influence of the braking signal on the pressure of the simulated train pipe;

and determining braking force change information of the simulation braking cylinder under the fault condition according to the influence of the pressure of the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

In some embodiments, when the constructed simulated train model includes a plurality of simulated train sections, the simulated train pipe of the preset simulated train section includes, after receiving the brake signal:

Determining the pressure change condition of the simulated train pipes in each section of simulated train section according to the influence of the braking signals on the pressure of the simulated train pipes in each section of simulated train section;

and determining the braking force change condition of the simulation braking cylinders in each section of simulation train section according to the influence of the pressure in the simulation train pipe in each section of simulation train section on the braking force of the simulation braking cylinders in the section of simulation train section.

In some embodiments, when the constructed simulated train model includes a plurality of simulated train sections, the method further comprises:

responding to a third control instruction aiming at the simulated train model, and controlling the train model to generate abnormal conditions; the abnormal conditions of the train model are as follows: at least one simulated vehicle section experiences the fault condition;

the train model is in the abnormal condition, responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of a preset simulated train section;

after receiving the braking signal, the simulated train pipe of the preset simulated train section determines the pressure change condition of the simulated train pipe in each simulated train section of the train model under the abnormal condition according to the influence of the braking signal on the pressure of the simulated train pipe in each simulated train section;

And according to the influence of the pressure in the simulated train pipe in each section of simulated train section on the braking force of the simulated braking cylinder in the section of simulated train section, the braking force change condition of the simulated braking cylinder in each section of simulated train section of the train model under the abnormal condition.

In some embodiments, when the simulated train model performs integral braking, determining a pressure change condition of the simulated train pipe in each simulated train section according to the influence of the braking signal on the pressure of the simulated train pipe in each simulated train section includes:

calculating the target pressure reduction amount of the train pipe of each section of the simulated train section according to the braking signal;

according to the structure of the simulated train model, determining a simulated train section which should be subjected to ventilation in the simulated train model;

controlling the pressure in the simulated train pipe of the simulated train section which is required to be blown off to be reduced to the target pressure reduction according to a preset pressure change rule;

and repeating the following steps until the pressure of the simulated train pipes of each simulated train section is reduced to the target pressure reduction in the process that the pressure in the simulated train pipes of the simulated train section which should be subjected to the air release is reduced to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe:

Judging whether the pressure in the simulated train pipe of each simulated train section is greater than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

and if the pressure in the simulated train pipe of the simulated train section is at least greater than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, reducing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule.

In some embodiments, when the simulated train model performs overall relief, determining a pressure change condition of the simulated train pipe in each simulated train section according to an influence of the brake signal on the pressure of the simulated train pipe in each simulated train section includes:

calculating the target pressure reduction amount of the train pipe of each section of the simulated train section according to the braking signal;

according to the structure of the simulated train model, determining a simulated train section which is to be inflated in the simulated train model;

controlling the pressure in the simulated train pipe of the simulated train section to be inflated to be increased to the target pressure reduction according to a preset pressure change rule;

and repeating the following steps in the process that the pressure in the simulated train pipes of the simulated train sections to be inflated is increased to the target pressure reduction amount until the pressure in the simulated train pipes of each simulated train section is increased to the target pressure reduction amount, so as to determine the pressure change condition in each simulated train pipe:

Judging whether the pressure in the simulated train pipe of each simulated train section is smaller than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

if the pressure in the simulated train pipe of the simulated train section is at least smaller than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, the pressure in the simulated train pipe of the simulated train section is increased according to a preset pressure change rule.

In some embodiments, the simulated train model further comprises a simulated master cylinder;

when the train model is relieved, after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe, and the method further comprises the following steps: and determining the pressure change condition in the simulation total air cylinder according to the pressure change condition of the simulation train pipe.

In some embodiments, the train gas circuit simulation method further includes, in response to a fourth control instruction for the simulated train model, controlling the simulated train model to be in a hold state so that a simulated master cylinder, a simulated train pipe and a simulated brake cylinder of the simulated train model are in a hold state;

Determining the pressure change conditions of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder when the simulation train model is in a holding state according to the pressure drop rules of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder of the simulation train model; the pressure drop rule is determined according to the air tightness of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder.

In some embodiments, there is also provided a train gas circuit simulation device, the device comprising:

the building module is used for building a simulation train model corresponding to the train according to the gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

the control module is used for responding to a first control instruction aiming at the simulation train model, controlling the simulation brake valve to act and controlling the simulation brake valve to output a brake signal to a simulation train pipe of the simulation train section;

the first determining module is used for determining the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe after the simulated train pipe of the simulated train section receives the braking signal;

And the second determining module is used for determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

In some embodiments, a computer readable storage medium having a computer program stored thereon, which when executed by a processor performs the steps of the train gas circuit simulation method is also provided.

According to the method, the change condition of the braking force of the train under various control instructions is displayed through the simulation train model, the gas path change process in the train can be conveniently displayed by related train staff, the difficulty of training of a real vehicle is solved, the space limit of a display field is small, the number of the containing students is large, and the display effect of the gas path change is guaranteed; the change condition of the air channel is very visual, and after the train related staff is trained by the simulation method, the change condition of the air channel can be specifically and intuitively perceived, so that the capabilities of the train related staff in normal inspection, abnormal condition judgment and processing of the air channel during working are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a method flow diagram of a train gas circuit simulation method according to an embodiment of the present application;

FIG. 2 is a flow chart of a method for determining pressure change conditions in each section of simulated train pipe when the simulated train model performs overall braking according to an embodiment of the present application;

FIG. 3 is a flow chart of a method for determining pressure change conditions in each section of simulated train pipe when the simulated train model is subjected to overall mitigation in accordance with an embodiment of the present application;

FIG. 4 shows a method flow diagram of a train gas circuit fault simulation method according to an embodiment of the present application;

fig. 5 shows a schematic structural diagram of a train gas circuit simulation device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the accompanying drawings in the present application are only for the purpose of illustration and description, and are not intended to limit the protection scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this application, illustrates operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to the flow diagrams and one or more operations may be removed from the flow diagrams as directed by those skilled in the art.

In addition, the described embodiments are only some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the presence of the features stated hereinafter, but not to exclude the addition of other features.

The change of air pressure in the train air path is related to whether the train can safely brake. The structure of the gas path in the train is as follows: the train comprises a main air cylinder and a brake valve corresponding to the main air cylinder, wherein the brake valve is commonly called a big brake and a small brake; the main air cylinder and the big brake and the small brake of the train are usually arranged in the train head; each section of the train is provided with an auxiliary reservoir, a brake cylinder and a train pipe, and in this embodiment, the train head may also be referred to as a section. The train sections of the train are sequentially connected in series, train pipes of the train sections are also sequentially connected in series and are communicated with the master air cylinder, the train pipe corresponding to each train section is also communicated with the auxiliary air cylinder of the train section, and the auxiliary air cylinder is communicated with the brake cylinder. The front end and the rear end of each car section are respectively provided with a bevel cock and a connecting hose, and the bevel cock and the connecting hose are used for controlling the communication or non-communication between the car section and the train pipe of the adjacent car section. Each car section is provided with a cut-off plug door, and the cut-off plug door is used for controlling the auxiliary air cylinder to be communicated or not communicated with the brake cylinder.

The braking process of the train gas circuit is as follows: when the big brake and the small brake are pulled, the control signal is directly sent to the corresponding valve of the train pipe directly connected with the main air cylinder to control the pressure change of the train pipe. When the train is released, the main air cylinder is controlled to charge air into the train pipe; the control signal enables the pressure in the train pipe to change, the pressure in the train pipe is transmitted to the brake cylinder through the auxiliary air cylinder, so that the brake cylinder acts, and the braking force of the brake cylinder changes along with the pressure change in the train pipe.

In the process of braking or relieving the train, the braking force of the brake cylinder, the pressure in the train pipe and the pressure in the total air cylinder in the process of relieving the train are gradually changed along with time, the changes are collectively called as air passage change conditions, the air passage change conditions can reflect whether an air passage system of the train is normal or not, and the air passage change conditions in the train are displayed to related staff such as students, maintenance staff, train staff and crews, so that the related staff of the train can master the change conditions of the air passage of the train skillfully, and the abnormal conditions in the air passage can be timely processed and handled.

However, as the requirements for transportation are continuously increased, the turnover rate of the train is continuously improved, the traffic is tight, the training of the real vehicles is difficult to arrange, and the change condition in the gas path in the braking or relieving process is displayed for the train related staff; the related real-vehicle cab has small space area, the number of accommodating students is extremely limited, and the display effect of the air path change is limited; the gas path change situation is related to the length of a single section of the train, the number of sections of the train and other train structures, and corresponding display cannot be carried out on the train model of the train where related personnel are located when the actual train is trained, so that the related personnel of the train have errors on the cognition of the gas path change and the actual situation; finally, the change condition of the air path is not intuitive enough, and even if students train in the field through following vehicles and the like, the students still lack systematic and visual cognition; in summary, the capability of the gas path normal inspection, abnormal condition judgment and processing of the train related staff during working still needs to be improved.

In view of the above problems, the present application proposes a train gas circuit simulation method, as shown in fig. 1, where the method includes:

s101, constructing a simulation train model corresponding to a train according to a gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

s102, responding to a first control instruction aiming at the simulated train model, controlling the simulated brake valve to act, and controlling the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

s103, after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe;

s104, determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

The braking force of the simulated brake cylinder may also be referred to as the pressure of the simulated brake cylinder.

According to the method, the change condition of the braking force of the train under various control instructions is displayed through the simulation train model, the gas path change process in the train can be conveniently displayed by related train staff, the difficulty of training of a real vehicle is solved, the space limit of a display field is small, the number of the containing students is large, and the display effect of the gas path change is guaranteed; the change condition of the air channel is very visual, and after the train related staff is trained by the simulation method, the change condition of the air channel can be specifically and intuitively perceived, so that the capabilities of the train related staff in normal inspection, abnormal condition judgment and processing of the air channel during working are improved.

The various control instructions include: when the simulated train model is in normal condition and abnormal condition, the simulated train section performs independent braking, and when the simulated train section performs independent relieving; when the whole brake or the whole release of the simulation train model is carried out; the simulated train model is in a hold state, etc.

For each control command, the pressure change condition of the simulated train pipe and the braking force change condition of the simulated brake cylinder corresponding to each control command are determined.

In the step S101, a simulated train model corresponding to the train is constructed according to the gas path structure of the train; the air path structure of the simulation train model is not identical to the air path structure of the train, and the pressure change condition in the main air cylinder and the train pipe and the braking force change condition of the braking cylinder are mainly observed in practice, and the pressure in the main air cylinder is unchanged in the braking process, so that the air path system in the constructed simulation train model mainly comprises the train pipe and the braking cylinder so as to display the pressure change condition of the train pipe and the braking cylinder under a control instruction.

The constructed simulated train model can be in a data form, and the change of each part of the gas circuit is only shown through the data change on a display screen of the running simulated train model; and an image model or an animation model of the train gas circuit system can be further constructed, and the image model or the animation model is marked with data changes to show the change conditions of all parts of the gas circuit.

The built simulation train model is mainly related to the model of the train and comprises parameters such as the length and the model of a train pipe of a train gas circuit structure, the model of a master cylinder, the model of a brake cylinder, the number of train sections and the like, so that the built simulation train model is consistent with the trains of all models, and when the model of the train where related staff is located is displayed or trained, the corresponding display is carried out according to the model of the train where the related staff is located, and the error between the cognition of the related staff of the train on the gas circuit change and the actual situation is reduced.

Because the types of the trains are relatively fixed, the structure of the trains in each type of train is also relatively fixed, and therefore, a plurality of types of simulation train sections, simulation master cylinders and simulation brake valves corresponding to the simulation master cylinders can be preset;

in the process of constructing a simulation train model corresponding to the train, determining the model number of the real train to be simulated and the number n of the serially connected train sections; the simulation master cylinder, the simulation brake valve and the n simulation train section modules corresponding to the real train of the model are selected, and the n simulation train section modules are connected in series to form the simulation train model, so that the simulation train model is fast in construction speed, accords with the gas circuit structure of the real train, and can enable related staff to better recognize the gas circuit system.

In step S102, the first control command is a gear of a large brake and a small brake of an externally input simulated brake valve, and different gears of the simulated brake valve correspond to different brake signals. The first control instruction is a plurality of control instructions, and the control instructions comprise braking, speed reduction and alleviation; the speed reduction comprises the step of reducing the speed of the train to different levels and the like, so that related staff of the train can comprehensively learn the gas path change conditions in the train under various control instructions.

In step S103, after receiving the braking signal, the simulated train pipe of the simulated train section controls the train pipe of the simulated train section to charge or discharge air so as to increase or decrease the pressure in the train pipe, thereby enabling the brake cylinder to change along with the pressure change in the train pipe, and the braking signal determines the target pressure reduction amount of the pressure in the train pipe. It should be noted that the target pressure reduction amount is a term commonly used in the art, and does not indicate that the train pipe pressure is reduced, and when the actual pressure in the train pipe is greater than the target pressure reduction amount, the actual pressure in the train pipe is reduced, and otherwise the actual pressure in the train pipe is increased.

When the pressure in the train pipe reaches the target pressure reduction amount, the pressure in the train pipe stops changing, and at the same time, the braking force of the brake cylinder also stops changing.

And simulating the pressure change condition of the train pipe, wherein the pressure of the train pipe is changed from an initial value to a target value, and the pressure of the train pipe is a value at each moment. The target value is determined according to the braking signal received by the simulated vehicle section.

In the step S104, according to the influence of the pressure in the train pipe on the braking force of the simulation brake cylinder in the simulation train section, determining the braking force change condition of the simulation brake cylinder, where the braking force change condition is: the braking force of the brake cylinder is changed from an initial value to a target value in the process of the control of the train pipe pressure signal, and the braking force of the brake cylinder is a value at each moment. The braking force change condition of the simulation braking cylinder is determined according to the pressure in the simulation train section train pipe and a preset function. The target value is determined according to the braking signal received by the simulated vehicle section.

According to the influence of the braking signal on the pressure in the train pipe and the braking force of the simulation braking cylinder in the simulation train section, determining the pressure in the train pipe and the braking force variation condition of the simulation braking cylinder of the simulation train models with different structures; the simulated train model of the different structures comprises: the simulated vehicle section is a single vehicle section and the simulated vehicle section is a plurality of vehicle sections.

When the simulated train section is a single train section, respectively determining the pressure in a train pipe of the simulated train model and the braking force change condition of the simulated braking cylinder under different braking signals: the different braking signals include: a separate brake signal and a separate release signal.

When the braking signal is a single braking signal, determining the braking force change condition of the pressure simulation braking cylinder in the simulation train section according to the influence of the braking signal on the pressure in the simulation train section and the braking force of the simulation braking cylinder, wherein the method specifically comprises the following steps of:

calculating a target pressure reduction amount of the pressure in the simulated train pipe and a target braking force increment with the simulated brake cylinder according to the independent braking signals; the target braking force increment is the braking force which the brake cylinder should increase under the control of the single pressure braking signal;

and determining the pressure change condition in the simulated train pipe and the braking force change condition of the simulated brake cylinder according to a preset function, and displaying the value of the pressure in the simulated train pipe at each moment and the braking force value of the simulated brake cylinder corresponding to the pressure in the process of changing the pressure in the simulated train pipe to the target pressure reduction.

When the pressure signal is a single release signal, determining the change condition of the pressure in the train pipe and the braking force of the simulation braking cylinder according to the influence of the pressure signal on the pressure in the train pipe in the simulation train section and the braking force of the simulation braking cylinder, wherein the method specifically comprises the following steps:

according to the independent release signal, calculating a target pressure reduction amount of the pressure in the simulated train pipe and a target braking force decrement of the simulated brake cylinder corresponding to the independent braking pressure signal; the target braking force is reduced to the braking force which the brake cylinder should reduce under the control of the single pressure relief signal;

and determining the pressure in the simulated train pipe and the braking force change condition of the simulated brake cylinder according to a preset function.

When the constructed simulated train model comprises a plurality of simulated train sections, the simulated train pipe of the preset simulated train section comprises the following components after receiving the braking signal:

determining the pressure change condition of the simulated train pipes in each section of simulated train section according to the influence of the braking signals on the pressure of the simulated train pipes in each section of simulated train section;

and determining the braking force change condition of the simulation braking cylinders in each section of simulation train section according to the influence of the pressure in the simulation train pipe in each section of simulation train section on the braking force of the simulation braking cylinders in the section of simulation train section.

When the constructed simulated train model comprises a plurality of simulated train sections, the corresponding first control instruction of the simulated train model can be integral braking or integral alleviation.

As shown in fig. 2, when the simulated train model performs overall braking, determining a pressure change condition of the simulated train pipe in each simulated train section according to an influence of the braking signal on the pressure of the simulated train pipe in each simulated train section includes:

s201, calculating the target pressure reduction amount of the train pipe of each section of the simulation train section according to the braking signal;

s202, determining a simulated train section which should be subjected to ventilation in the simulated train model according to the structure of the simulated train model;

s203, controlling the pressure in the simulated train pipe of the simulated train section which is required to be blown out to be reduced to the target pressure reduction according to a preset pressure change rule;

s204, repeating the following steps until the pressure of the simulated train pipes of each simulated train section is reduced to the target pressure reduction in the process that the pressure in the simulated train pipes of the simulated train section which should be subjected to air release is reduced to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe:

S205, judging whether the pressure in the simulated train pipe of each simulated train section is greater than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

s206, if the pressure in the simulated train pipe of the simulated train section is at least greater than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, reducing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule.

When the pressure in the simulated train pipe changes, the braking force of the corresponding braking cylinder of the simulated train pipe also changes.

In this embodiment, the preset pressure change rule is as follows: determining a value to be reduced of the train pipe of the simulated train section at each moment compared with the last moment according to a preset function; when the pressure in the simulated train pipe of the simulated train section is only larger than the adjacent simulated train section on one side of the simulated train section, the pressure in the simulated train pipe is reduced to a numerical value calculated according to a preset function; when the pressure in the simulated train pipe of the simulated train section is larger than the adjacent simulated train sections on two sides of the simulated train section, the decrement of the pressure in the simulated train pipe is double the value.

In some embodiments, the decrement of the pressure in the train pipe when the pressure in the simulated train pipe of the simulated train section is only greater than the simulated train section adjacent to one side of the simulated train section and greater than the simulated train section adjacent to both sides can also be directly calculated through a preset function.

As shown in fig. 3, when the simulated train model performs overall relief, determining a pressure change condition of the simulated train pipe in each simulated train section according to an influence of the brake signal on the pressure of the simulated train pipe in each simulated train section includes:

s301, calculating target pressure reduction quantity of the train pipes of each section of simulation train section according to the braking signals;

s302, determining a simulated train section which is to be inflated in the simulated train model according to the structure of the simulated train model;

s303, controlling the pressure in the simulated train pipe of the simulated train section to be inflated to be increased to the target pressure reduction according to a preset pressure change rule;

s304, repeating the following steps until the pressure of the simulated train pipes of each simulated train section is increased to the target pressure reduction in the process that the pressure in the simulated train pipes of the simulated train sections to be inflated is increased to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe;

s305, judging whether the pressure in the simulated train pipe of each simulated train section is smaller than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

S306, if the pressure in the simulated train pipe of the simulated train section is at least smaller than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, increasing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule.

When the pressure in the simulated train pipe changes, the braking force of the corresponding braking cylinder of the simulated train pipe also changes.

In this embodiment, the preset pressure change rule is as follows: determining a value to be added to the train pipe of the simulated train section at each moment compared with the last moment according to a preset function; when the pressure in the simulated train pipe of the simulated train section is only larger than the adjacent simulated train section on one side of the simulated train section, the pressure increment in the simulated train pipe is a numerical value calculated according to a preset function; when the pressure in the simulated train pipe of the simulated train section is larger than the adjacent simulated train sections on two sides of the simulated train section, the increment of the pressure in the simulated train pipe is double the value.

In some embodiments, the increase in pressure in the train pipe when the pressure in the simulated train pipe of the simulated train section is only greater than the simulated train section adjacent to one side of the simulated train section and greater than the simulated train section adjacent to both sides can also be directly calculated by a preset function.

When simulating multiple train sections in a train model, the pressure change conditions in the train pipe are complex, the pressure change conditions in the train pipe are different for different vehicle types, the number of the train sections is different for the same vehicle type, the train sections for charging and discharging air are different, the pressure change conditions in the train pipe are also different, and the traditional training is difficult to enable train related staff to have perfect cognition on the pressure change conditions; therefore, when the train section in the simulation train model is respectively displayed, the pressure of the train pipe of the train and the change condition of the braking force of the braking cylinder in the whole vehicle braking and the relief of the whole vehicle are displayed, the cognition of the train related workers on the change condition of the air path is further enriched, particularly the cognition of the pressure change condition in the train pipe of the train with the related model is further enriched, and therefore the capacities of the train related workers in normal checking, abnormal condition judging and processing of the air path during working are further improved.

In this embodiment, the simulated train model further includes a simulated total air cylinder;

when the train model is relieved, after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe, and the method further comprises the following steps: and determining the pressure change condition in the simulation total air cylinder according to the pressure change condition of the simulation train pipe.

The total air cylinder pressure can be reduced when the train is relieved, and the total air cylinder pressure is used for charging the train pipe and the auxiliary air cylinder, so that the pressure of the train pipe is increased, the total air cylinder pressure is reduced, and the pressure change condition in the simulated total air cylinder can be determined according to the pressure change condition of the simulated train pipe; the amount of pressure decrease in the total reservoir increases equally as the number of knots increases. Meanwhile, when the pressure in the total air cylinder is reduced to a certain value, the air compressor is automatically activated to work, and then the pressure of the total air cylinder is increased. When the pressure of the train pipe is reduced, the total air cylinder pressure is not changed.

Therefore, when the simulated train section of the simulated train model is a plurality of sections, the pressure change condition in the simulated total air cylinder is determined according to the pressure change condition of each section of simulated train pipe.

The embodiment of the application further shows the pressure change condition in the total air cylinder when the simulation train model is relieved, and further enriches the cognition of the train related workers on the air path change condition.

The train gas circuit simulation method provided by the embodiment of the application further comprises the following steps: responding to a fourth control instruction aiming at the simulation train model, and controlling the simulation train model to be in a holding state so as to enable a simulation master cylinder, a simulation train pipe and a simulation brake cylinder of the simulation train model to be in a holding state;

Determining the pressure change conditions of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder when the simulation train model is in a holding state according to the pressure drop rules of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder of the simulation train model; the pressure drop rule is determined according to the air tightness of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder.

In the embodiment of the application, the pressure drop rule is a preset pressure drop function, and the pressure drop function can determine the pressure drop value in the simulation total air cylinder, the simulation train pipe and the simulation brake cylinder at each moment.

The total air cylinder pressure, the train pipe pressure and the brake cylinder pressure can be spontaneously reduced due to air tightness when the train pipe pressure is maintained, so that the embodiment of the application further shows the pressure change condition of the simulated train model in the total air cylinder, and further enriches the cognition of related train workers on the air path change condition.

In the embodiment of the application, the simulation train model is used for simulating and displaying some abnormal conditions in the train gas circuit system so as to enrich the cognition of related train workers on the abnormal conditions of the gas circuit.

As shown in fig. 4, the train gas circuit simulation method further includes:

s401, constructing a simulation train model corresponding to a train according to the gas path structure of the train; the simulation vehicle section also comprises a simulation angle cock, a simulation cut-off cock and a connecting hose;

s402, responding to a second control instruction aiming at the simulated train model, and controlling the simulated train section to generate a fault condition; the fault condition includes at least one of: the simulated angle cock is closed, the simulated cutoff cock is closed and the connecting hose is disconnected;

s403, the simulated train section in the fault condition responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

s404, after receiving the braking signal, determining the pressure change condition of the simulated train pipe under the fault condition according to the influence of the braking signal on the pressure of the simulated train pipe;

s405, determining braking force change information of the simulation braking cylinder under the fault condition according to the influence of the pressure of the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

When the constructed simulated train model comprises a plurality of simulated train sections, determining the pressure of the simulated train pipes in each simulated train section and the braking force fault change condition of the simulated braking cylinders according to the influence of the braking signals on the pressure of the simulated train pipes and the braking force of the simulated braking cylinders in each simulated train section under the abnormal condition; comprising the following steps:

responding to a third control instruction aiming at the simulated train model, and controlling the train model to generate abnormal conditions; the abnormal conditions of the train model are as follows: at least one simulated vehicle section experiences the fault condition;

the train model is in the abnormal condition, responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of a preset simulated train section;

after receiving the braking signal, the simulated train pipe of the preset simulated train section determines the pressure change condition of the simulated train pipe in each simulated train section of the train model under the abnormal condition according to the influence of the braking signal on the pressure of the simulated train pipe in each simulated train section;

And according to the influence of the pressure in the simulated train pipe in each section of simulated train section on the braking force of the simulated braking cylinder in the section of simulated train section, the braking force change condition of the simulated braking cylinder in each section of simulated train section of the train model under the abnormal condition.

The simulated train model not only simulates the abnormal conditions of the simulated angle cock closing, the simulated cutoff cock closing, the abnormal disconnection of a connecting hose and the like, but also simulates other abnormal conditions of the gas circuit, such as gas leakage of a train pipe and the like.

In the embodiment of the application, functions for calculating the pressure changes of the total air cylinder, the train pipe and the brake cylinder in various states of the air circuit system are obtained through real data corresponding to the simulation train model in operation.

For a specific vehicle model, the structure and parameters of the total air cylinder, the train pipe and the brake cylinder are fixed, so that the function for calculating the pressure change can be calculated in a table look-up or function image mode without using a complex formula.

The following table one is an example table for calculating train pipe pressure changes for look-up tables:

list one

The number in the table represents the pressure change in unit time, which may be 10ms or other values, and the pressure change display should be performed by using the simulation train model according to the actual situation, so that a better simulation effect should be achieved by using a smaller pressure interval.

In this embodiment, the determined gas path change conditions required in the simulation method mainly include:

the simulation vehicle section determines the braking force change condition of the brake cylinder according to the received pressure signal;

when the simulated train section performs independent braking, the pressure of the train pipe and the braking force of the braking cylinder are changed;

when the simulated train section is independently relieved, the pressure of the train pipe and the braking force of the brake cylinder are changed;

when the simulation train model is braked wholly or relieved wholly, the pressure change condition in the train pipe is changed;

when the simulated train model is relieved, the pressure change condition in the total air cylinder is changed;

when the simulation train model is in a holding state, simulating the pressure change conditions of the main air cylinder, the simulation train pipe and the simulation brake cylinder;

when the simulated train model carries out fault simulation, the pressure of the simulated train pipe and the braking force change condition of the simulated brake cylinder are simulated.

Therefore, more than one function is needed to calculate the pressure change, for example, when the simulated train model is in a holding state, the simulated total air cylinder, the simulated train pipe and the simulated brake cylinder have pressure drop conditions due to air tightness, and the drop quantity can be calculated by a specific function every second or even every 10 seconds due to the very small change quantity (the drop of the total air cylinder pressure per minute is required to be less than 10kPa under normal conditions), so that the air path change conditions are obviously different from the pressure change conditions in an air path when the whole train brakes or is released; in the one-time whole vehicle relieving process, under the control of a braking signal, three different functions are needed for calculating a total air cylinder, a train pipe and a braking cylinder. Different functions are used under different conditions, so that the simulation method can accurately display various pressure change conditions in the gas circuit system.

When the simulation of the gas path change condition under the condition is carried out by using the function corresponding to each condition, the function (which can be a table) is corrected at any time according to the comparison of the test data during simulation and the collected real data of the real train, so that the simulation method can accurately display the pressure change condition in the gas path system, and the related staff of the train can accurately recognize the gas path change condition.

The embodiment of the application also provides a train gas circuit simulation device, as shown in fig. 5, the device comprises:

the construction module 501 is configured to construct a simulated train model corresponding to a train according to a gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

the control module 502 is used for responding to a first control instruction aiming at the simulated train model, controlling the action of the simulated brake valve and controlling the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

a first determining module 503, configured to determine a pressure change condition of the simulated train pipe according to an influence of the braking signal on the pressure of the simulated train pipe after the simulated train pipe of the simulated train section receives the braking signal;

And the second determining module 504 is used for determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium is stored with a computer program, and the computer program executes the steps of the train gas circuit simulation method when being run by a processor.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the method embodiments, which are not described in detail in this application. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, and the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, and for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, indirect coupling or communication connection of devices or modules, electrical, mechanical, or other form.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a platform server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (8)

1. The train gas circuit simulation method is characterized by comprising the following steps of:

constructing a simulation train model corresponding to the train according to the gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

responding to a first control instruction aiming at the simulated train model, controlling the action of the simulated brake valve, and controlling the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe;

determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder;

When the constructed simulated train model comprises a plurality of simulated train sections, after receiving the braking signals, the simulated train pipes of the preset simulated train sections determine the pressure change condition of the simulated train pipes in each section of simulated train section according to the influence of the braking signals on the pressure of the simulated train pipes in each section of simulated train section;

determining the braking force change condition of the simulation braking cylinders in each section of simulation train section according to the influence of the pressure in the simulation train pipe in each section of simulation train section on the braking force of the simulation braking cylinders in the section of simulation train section;

when the simulation train model carries out integral braking, determining the pressure change condition of the simulation train pipes in each section of simulation train section according to the influence of the braking signal on the pressure of the simulation train pipes in each section of simulation train section, wherein the method comprises the following steps:

calculating the target pressure reduction amount of the train pipe of each section of the simulated train section according to the braking signal;

according to the structure of the simulated train model, determining a simulated train section which should be subjected to ventilation in the simulated train model;

controlling the pressure in the simulated train pipe of the simulated train section which is required to be blown off to be reduced to the target pressure reduction according to a preset pressure change rule;

And repeating the following steps until the pressure of the simulated train pipes of each simulated train section is reduced to the target pressure reduction in the process that the pressure in the simulated train pipes of the simulated train section which should be subjected to the air release is reduced to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe:

judging whether the pressure in the simulated train pipe of each simulated train section is greater than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

if the pressure in the simulated train pipe of the simulated train section is at least greater than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, reducing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule;

the preset pressure change rule during integral braking is as follows: determining a value to be reduced of the train pipe of the simulated train section at each moment compared with the last moment according to a preset function; when the pressure in the simulated train pipe of the simulated train section is only larger than the adjacent simulated train section on one side of the simulated train section, the pressure in the simulated train pipe is reduced to a numerical value calculated according to a preset function; when the pressure in the simulated train pipe of the simulated train section is larger than the adjacent simulated train sections on two sides of the simulated train section, the decrement of the pressure in the simulated train pipe is double the value.

2. The train gas circuit simulation method according to claim 1, further comprising:

the simulation vehicle section also comprises a simulation angle cock, a simulation cut-off cock and a connecting hose;

responding to a second control instruction aiming at the simulated train model, and controlling the simulated train section to have a fault condition; the fault condition includes at least one of: the simulated angle cock is closed, the simulated cutoff cock is closed and the connecting hose is disconnected;

the simulated train section in the fault condition responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of the simulated train section;

after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe under the fault condition according to the influence of the braking signal on the pressure of the simulated train pipe;

and determining braking force change information of the simulation braking cylinder under the fault condition according to the influence of the pressure of the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder.

3. The train gas circuit simulation method according to claim 2, wherein when the constructed simulated train model includes a plurality of simulated train sections, the method further comprises:

responding to a third control instruction aiming at the simulated train model, and controlling the train model to generate abnormal conditions; the abnormal conditions of the train model are as follows: at least one simulated vehicle section experiences the fault condition;

the train model is in the abnormal condition, responds to a first control instruction aiming at the simulated train model, controls the simulated brake valve to act, and controls the simulated brake valve to output a brake signal to a simulated train pipe of a preset simulated train section;

after receiving the braking signal, the simulated train pipe of the preset simulated train section determines the pressure change condition of the simulated train pipe in each simulated train section of the train model under the abnormal condition according to the influence of the braking signal on the pressure of the simulated train pipe in each simulated train section;

and determining the braking force change condition of the simulation braking cylinder in each simulation train section of the train model under the abnormal condition according to the influence of the pressure in the simulation train pipe in each simulation train section on the braking force of the simulation braking cylinder in the simulation train section.

4. The train gas circuit simulation method according to claim 1, wherein when the simulated train model is subjected to overall relief, determining the pressure change condition of the simulated train pipe in each section of the simulated train section according to the influence of the brake signal on the pressure of the simulated train pipe in each section of the simulated train section comprises:

calculating the target pressure reduction amount of the train pipe of each section of the simulated train section according to the braking signal;

according to the structure of the simulated train model, determining a simulated train section which is to be inflated in the simulated train model;

controlling the pressure in the simulated train pipe of the simulated train section to be inflated to be increased to the target pressure reduction according to a preset pressure change rule;

in the process that the pressure in the simulated train pipes of the simulated train sections which are to be inflated is increased to the target pressure reduction, repeating the following steps until the pressure of the simulated train pipes of each simulated train section is increased to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe:

judging whether the pressure in the simulated train pipe of each simulated train section is smaller than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

If the pressure in the simulated train pipe of the simulated train section is at least smaller than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, increasing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule;

the preset pressure change rule during overall relief is as follows: determining a value to be added to the train pipe of the simulated train section at each moment compared with the last moment according to a preset function; when the pressure in the simulated train pipe of the simulated train section is only larger than the adjacent simulated train section on one side of the simulated train section, the pressure increment in the simulated train pipe is a numerical value calculated according to a preset function; when the pressure in the simulated train pipe of the simulated train section is larger than the adjacent simulated train sections on two sides of the simulated train section, the increment of the pressure in the simulated train pipe is double the value.

5. The train gas circuit simulation method according to claim 1, wherein the simulated train model further comprises a simulated master cylinder;

when the train model is relieved, after receiving the braking signal, the simulated train pipe of the simulated train section determines the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe, and the method further comprises the following steps: and determining the pressure change condition in the simulation total air cylinder according to the pressure change condition of the simulation train pipe.

6. The train gas circuit simulation method according to claim 5, wherein the simulated train model is controlled to be in a hold state in response to a fourth control instruction for the simulated train model so that a simulated master cylinder, a simulated train pipe and a simulated brake cylinder of the simulated train model are in a hold state;

determining the pressure change conditions of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder when the simulation train model is in a holding state according to the pressure drop rules of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder of the simulation train model; the pressure drop rule is determined according to the air tightness of the simulation master cylinder, the simulation train pipe and the simulation brake cylinder.

7. A train gas circuit simulation device, the device comprising:

the building module is used for building a simulation train model corresponding to the train according to the gas path structure of the train; the simulated train model comprises: simulation car section and simulation brake valve; the simulation train section comprises a simulation train pipe and a simulation brake cylinder;

the control module is used for responding to a first control instruction aiming at the simulation train model, controlling the simulation brake valve to act and controlling the simulation brake valve to output a brake signal to a simulation train pipe of the simulation train section;

The first determining module is used for determining the pressure change condition of the simulated train pipe according to the influence of the braking signal on the pressure of the simulated train pipe after the simulated train pipe of the simulated train section receives the braking signal;

the second determining module is used for determining the braking force change condition of the simulation braking cylinder according to the influence of the pressure in the simulation train pipe in the simulation train section on the braking force of the simulation braking cylinder;

when the constructed simulated train model comprises a plurality of simulated train sections, after receiving the braking signals, the simulated train pipes of the preset simulated train sections determine the pressure change condition of the simulated train pipes in each section of simulated train section according to the influence of the braking signals on the pressure of the simulated train pipes in each section of simulated train section;

determining the braking force change condition of the simulation braking cylinders in each section of simulation train section according to the influence of the pressure in the simulation train pipe in each section of simulation train section on the braking force of the simulation braking cylinders in the section of simulation train section;

when the simulation train model carries out integral braking, determining the pressure change condition of the simulation train pipes in each section of simulation train section according to the influence of the braking signal on the pressure of the simulation train pipes in each section of simulation train section, wherein the method comprises the following steps:

Calculating the target pressure reduction amount of the train pipe of each section of the simulated train section according to the braking signal;

according to the structure of the simulated train model, determining a simulated train section which should be subjected to ventilation in the simulated train model;

controlling the pressure in the simulated train pipe of the simulated train section which is required to be blown off to be reduced to the target pressure reduction according to a preset pressure change rule;

and repeating the following steps until the pressure of the simulated train pipes of each simulated train section is reduced to the target pressure reduction in the process that the pressure in the simulated train pipes of the simulated train section which should be subjected to the air release is reduced to the target pressure reduction, so as to determine the pressure change condition in each simulated train pipe:

judging whether the pressure in the simulated train pipe of each simulated train section is greater than the pressure in the simulated train pipes of the adjacent simulated train sections on two sides of the simulated train section;

if the pressure in the simulated train pipe of the simulated train section is at least greater than the pressure in the simulated train pipe of the simulated train section adjacent to one side of the simulated train section, reducing the pressure in the simulated train pipe of the simulated train section according to a preset pressure change rule;

the preset pressure change rule during integral braking is as follows: determining a value to be reduced of the train pipe of the simulated train section at each moment compared with the last moment according to a preset function; when the pressure in the simulated train pipe of the simulated train section is only larger than the adjacent simulated train section on one side of the simulated train section, the pressure in the simulated train pipe is reduced to a numerical value calculated according to a preset function; when the pressure in the simulated train pipe of the simulated train section is larger than the adjacent simulated train sections on two sides of the simulated train section, the decrement of the pressure in the simulated train pipe is double the value.

8. A computer readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when run by a processor, performs the steps of the train gas circuit simulation method according to any of claims 1 to 6.

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