A skid brake control method, device, equipment and storage medium for a magnetic levitation train

Abstract

The present invention discloses a skid braking control method, device, electronic device and storage medium for a maglev train, which are applied to the technical field of maglev trains. In order to solve the problem that skid braking has high requirements on the thermal capacity index of skid materials and high costs, the method comprises: when the train is in the skid braking process, obtaining the actual braking force of the train; judging whether the actual braking force meets the braking force requirement; when the actual braking force does not meet the braking force requirement, determining a car to be braked from each car to which the skid braking has not been applied; and applying the skid braking to the car to be braked; when the skid braking is performed on the train, the present application does not brake the skid on each car at the same time, but increases the skid braking force of one car when the actual braking force of the train does not meet the braking force requirement, thereby avoiding continuous friction of all cars, reducing excessive thermal capacity, and lowering the skid's requirements on the thermal capacity index, so as to select a more economical skid material and reduce the overall cost of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic levitation trains, and in particular to a skid braking control method, device, electronic equipment and computer-readable storage medium for a magnetic levitation train. Background Art

[0002] Currently, during maglev train skid braking, each car brakes simultaneously, and the skids maintain constant friction. This creates excessive frictional heat capacity for each car. To ensure skid performance, the skid material must meet higher thermal capacity requirements. Using materials with high thermal capacity requirements also increases costs, leading to higher overall train costs.

[0003] In view of this, how to reduce the requirements of the skid on the heat capacity index and reduce the cost has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a skid braking control method, device, electronic device and computer-readable storage medium for a magnetic levitation train, which can reduce the situation of excessive heat capacity to a certain extent, thereby lowering the skid's requirements for heat capacity indicators, allowing the selection of more economical skid materials, and helping to reduce the overall cost of the vehicle.

[0005] To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

[0006] In one aspect, the present invention provides a skid brake control method for a magnetic levitation train, comprising:

[0007] When the train is in the process of skid braking, the actual braking force of the train is obtained;

[0008] determining whether the actual braking force meets the braking force requirement;

[0009] In the case that the actual braking force does not meet the braking force requirement, determining a car to be braked from among the cars to which the skid brake has not been applied;

[0010] Applying skid brakes to the vehicle to be applied.

[0011] In an exemplary embodiment, the method further includes:

[0012] When the actual braking force meets the braking force requirement, obtaining the duration of the sled brake application of each car currently having the sled brake applied;

[0013] Determining a target skid-brake-applied vehicle whose skid-brake-applied time reaches the preset thermal capacity limit time according to the skid-brake-applied time of each vehicle currently having the skid brake applied and the preset thermal capacity limit time;

[0014] Determine a target non-application car from among the cars to which the skid brake is not applied;

[0015] The skid brake of the target vehicle with the skid brake applied is removed, and the skid brake is applied to the target vehicle without the skid brake applied.

[0016] In an exemplary embodiment, before determining a target vehicle where the skid brake is not applied among the vehicles where the skid brake is not applied, the method further includes:

[0017] It is determined whether there is a car in each car section that does not apply the skid brake. If so, the step of determining a target car that does not apply the skid brake from each car section that does not apply the skid brake is performed.

[0018] In an exemplary embodiment, determining whether the actual braking force meets the braking force requirement includes:

[0019] Obtain the braking force required by the entire train;

[0020] Determining whether the actual braking force reaches the braking force required by the vehicle;

[0021] When the actual braking force reaches the braking force required by the entire vehicle, the actual braking force meets the braking force requirement;

[0022] When the actual braking force is lower than the braking force required by the entire vehicle, the actual braking force does not meet the braking force requirement.

[0023] In an exemplary embodiment, obtaining the braking force required by the entire train includes:

[0024] Obtaining current speed information and train load of the train;

[0025] determining the position information of the train according to the speed information and the speed-position curve of the train;

[0026] Calculating the required braking force of the entire train according to the speed information, the position information and the train load;

[0027] Then, obtaining the actual braking force of the train includes:

[0028] The actual braking force of the train is calculated according to the speed information and the train load.

[0029] In an exemplary embodiment, the calculating the required braking force of the entire train according to the speed information, the position information, and the train load includes:

[0030] Obtaining a current required acceleration of the train according to the speed information and the position information in combination with a first calculation formula;

[0031] The required braking force of the train is obtained based on the required acceleration of the train and the train load in combination with a second calculation formula; wherein:

[0032] The first calculation relationship is: ;

[0033] The second calculation relationship is: ;

[0034] in, Indicates the required acceleration of the vehicle, represents the speed at time t1, represents the speed at time t2, represents the position at time t1, represents the position at time t2, It represents the braking force required for the whole vehicle, and M represents the train load.

[0035] In an exemplary embodiment, calculating the actual braking force of the train according to the speed information and the train load includes:

[0036] The actual braking force of the train is obtained based on the speed information and the train load in combination with a third calculation formula; wherein:

[0037] The third relational expression is: , Indicates the actual braking force of the train.

[0038] Another aspect of the present invention provides a skid brake control device for a magnetic levitation train, comprising:

[0039] The first acquisition module is used to obtain the actual braking force of the train when the train is in the skid braking process;

[0040] A first judging module, configured to judge whether the actual braking force meets the braking force requirement;

[0041] A first determining module is configured to determine a car to be subjected to skid brake application from among the cars to which skid brake has not been applied, when the actual braking force does not meet the braking force requirement;

[0042] A braking module is used to apply skid brakes to the vehicle to be applied.

[0043] Another aspect of the present invention provides an electronic device, comprising:

[0044] Memory for storing computer programs;

[0045] The processor is configured to implement the steps of the above-mentioned method for controlling the skid brake of a magnetic levitation train when executing the computer program.

[0046] Another aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned method for controlling the skid brake of a magnetic levitation train are implemented.

[0047] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0048] An embodiment of the present invention provides a skid braking control method for a magnetic levitation train, comprising: obtaining the actual braking force of the train when the train is in the skid braking process; judging whether the actual braking force meets the braking force requirement; if the actual braking force does not meet the braking force requirement, determining a car to be subjected to skid braking from among the cars to which skid braking has not been applied; and applying skid braking to the car to be subjected to skid braking.

[0049] It can be seen that in the embodiment of the present invention, when the train is in the sled braking process, the current actual braking force of the train is obtained, and then it is determined whether the actual braking force meets the braking force requirement of the train. If the braking force requirement is not met, a car to be braked is determined from the cars of the train that have not applied the sled brake, and then the sled brake is applied to the car to be braked. In this application, when the train is sled braked, the sled brake is not applied to each car at the same time, but the sled braking force of one car is increased when the actual braking force of the train does not meet the braking force requirement, so as to avoid continuous friction of all cars and reduce the situation of excessive heat capacity to a certain extent, thereby reducing the requirements of the sled on the heat capacity index, and more economical sled materials can be selected, which is conducive to reducing the overall cost of the vehicle.

[0050] In addition, the present invention also provides corresponding implementation devices, electronic devices and computer-readable storage media for the skid braking control method of a magnetic levitation train, further making the method more practical, and the devices, electronic devices and computer-readable storage media have corresponding advantages.

[0051] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the prior art and the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 A schematic flow chart of a skid braking control method for a magnetic levitation train provided in an embodiment of the present invention;

[0054] Figure 2 A schematic flow chart of another method for controlling skid braking of a magnetic levitation train provided by an embodiment of the present invention;

[0055] Figure 3 A schematic flow chart of another method for controlling skid braking of a magnetic levitation train provided by an embodiment of the present invention;

[0056] Figure 4 A schematic structural diagram of a skid brake control device for a magnetic levitation train provided by an embodiment of the present invention;

[0057] Figure 5 A schematic structural diagram of an electronic device provided by an embodiment of the present invention;

[0058] Figure 6 A schematic structural diagram of a computer-readable storage medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0059] Embodiments of the present invention provide a skid braking control method, device, electronic device, and computer-readable storage medium for a magnetic levitation train, which can reduce the situation of excessive heat capacity to a certain extent, thereby lowering the skid's requirements for heat capacity indicators, allowing the selection of more economical skid materials, and helping to reduce the overall cost of the vehicle.

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0061] Please refer to Figure 1 , Figure 1 A schematic flow chart of a skid brake control method for a maglev train provided in an embodiment of the present invention. The skid brake control method for a maglev train includes:

[0062] S110: When the train is in the process of skid braking, obtaining the actual braking force of the train;

[0063] It should be noted that, in the embodiment of the present invention, when a sled braking signal is detected, sled braking can be applied to one car of the train, specifically, sled braking can be applied to the first car. When the train is in the sled braking process, the current actual braking force of the train can be obtained in real time or periodically.

[0064] S120: Determine whether the actual braking force meets the braking force requirement;

[0065] Specifically, after obtaining the current actual braking force of the train, it is possible to further determine whether the actual braking force meets the current braking force requirement of the train, wherein the braking force requirement can be determined based on the braking force required by the entire train. That is, the braking force required by the entire vehicle can be obtained, and the actual braking force can be compared with the braking force required by the entire vehicle. By determining whether the actual braking force reaches the braking force required by the entire vehicle, it is determined whether the actual braking force meets the braking force requirement.

[0066] S130: If the actual braking force does not meet the braking force requirement, a car to be braked is determined from among the cars to which the skid brake has not been applied;

[0067] It should be noted that when the actual braking force does not meet the braking force requirement, that is, when the actual braking force does not reach the braking force required by the entire vehicle, it means that the braking force of the current sled brake of the train cannot meet the braking force requirement of the train. At this time, a car can be determined from the various cars on the train that have not applied the sled brake as the car to be applied, and a car seat can be randomly selected from the various cars that have not applied the sled brake to be applied, or a car located after the current last car with the sled brake applied among the various cars that have not applied the sled brake can be used as the car to be applied.

[0068] S140: Apply skid brake to the vehicle to be braked.

[0069] Specifically, after determining the vehicle to be applied, the sled brake can be applied to the vehicle to be applied. In actual application, an instruction to apply the sled brake can be sent to the vehicle to be applied. After receiving the instruction to apply the sled brake, the vehicle to be applied executes the sled brake according to the instruction to apply the sled brake, that is, lowers the corresponding sled to apply the sled brake to the vehicle.

[0070] It can be seen that in the embodiment of the present invention, when the train is in the sled braking process, the current actual braking force of the train is obtained, and then it is determined whether the actual braking force meets the braking force requirement of the train. If the braking force requirement is not met, a car to be braked is determined from the cars of the train that have not applied the sled brake, and then the sled brake is applied to the car to be braked. In this application, when the train is sled braked, the sled brake is not applied to each car at the same time, but the sled braking force of one car is increased when the actual braking force of the train does not meet the braking force requirement, so as to avoid continuous friction of all cars and reduce the situation of excessive heat capacity to a certain extent, thereby reducing the requirements of the sled on the heat capacity index, and more economical sled materials can be selected, which is conducive to reducing the overall cost of the vehicle.

[0071] Based on the above examples, please refer to Figure 2 and Figure 3 The embodiments of the present invention will further illustrate and introduce the technical solution:

[0072] S210: When the train is in the sled braking process, obtain the actual braking force of the train;

[0073] S220: Determine whether the actual braking force meets the braking force requirement;

[0074] Specifically, after obtaining the current actual braking force of the train, it is possible to further determine whether the actual braking force meets the listed current braking force requirements, wherein the braking force requirements can be determined based on the listed braking force required for the entire vehicle, that is, the braking force required for the entire vehicle can be obtained, and the actual braking force can be compared with the braking force required for the entire vehicle, and whether the actual braking force meets the braking force requirements can be determined by determining whether the actual braking force reaches the braking force required for the entire vehicle.

[0075] Furthermore, the process of determining whether the actual braking force meets the braking force requirement in S220 may specifically include:

[0076] Obtain the braking force required by the entire train;

[0077] Determine whether the actual braking force reaches the braking force required by the vehicle;

[0078] When the actual braking force reaches the braking force required by the vehicle, the actual braking force meets the braking force requirement;

[0079] When the actual braking force is lower than the braking force required by the entire vehicle, the actual braking force does not meet the braking force requirement.

[0080] It should be noted that after obtaining the current actual braking force of the train, the current braking force required by the entire vehicle can also be obtained, and it can be further judged whether the actual braking force reaches the braking force required by the entire vehicle. Specifically, the actual braking force can be compared with the braking force required by the entire vehicle to determine whether the actual braking force reaches (that is, is greater than or equal to) the braking force required by the entire vehicle. If the actual braking force is greater than or equal to the braking force required by the entire vehicle, it means that the current braking force meets the braking force requirement. If the applied braking force is lower than (that is, less than) the braking force required by the entire vehicle, it means that the current braking force does not meet the braking force requirement.

[0081] Furthermore, the above process of obtaining the braking force required by the entire train may include:

[0082] Get the current train speed information and train load;

[0083] Determine the train's position information based on the speed information and the train's speed-position curve;

[0084] Calculate the required braking force of the train based on speed information, position information and train load;

[0085] Specifically, the current required acceleration of the train can be obtained based on the speed information and the position information combined with the first calculation formula;

[0086] The required braking force of the train is obtained based on the required acceleration of the train and the train load in combination with the second calculation formula; wherein:

[0087] The first calculation relationship is ;

[0088] The second calculation relationship is: ;

[0089] in, Indicates the required acceleration of the vehicle, represents the speed at time t1, represents the speed at time t2, represents the position at time t1, represents the position at time t2, It represents the braking force required for the whole vehicle, and M represents the train load.

[0090] Furthermore, the process of obtaining the actual braking force of the train may include:

[0091] Calculate the actual braking force of the train based on speed information and train load.

[0092] Specifically, the actual braking force of the train can be obtained based on the speed information and the train load in combination with the third calculation formula; wherein:

[0093] The third relationship is: , Indicates the actual braking force of the train.

[0094] It should be noted that the specific implementation process of S120 in the above embodiment may also be the implementation process of S220 in the embodiment of the present invention.

[0095] S230: If the actual braking force does not meet the braking force requirement, determine a car to be braked from among the cars to which the skid brake has not been applied;

[0096] S240: Apply skid brake to the vehicle to be braked.

[0097] It should be noted that S210 to S240 in the embodiment of the present invention correspond to S110 to S140 in the above embodiment. Therefore, for the introduction of S210 to S240 involved in the embodiment of the present invention, reference can be made to S110 to S140 in the above embodiment, and the embodiment of the present invention will not be repeated here.

[0098] S250: When the actual braking force meets the braking force requirement, obtaining the skid braking application time of each car currently having the skid brake applied;

[0099] It should be noted that when the actual braking force meets the braking force requirement, that is, when the actual braking force reaches the braking force required by the entire vehicle, it means that the current sled brake braking force of the train can meet the train's braking force requirement. At this time, the sled brake application time corresponding to each vehicle in the train that has applied the sled brake can be obtained. In actual application, the timing can be started when the sled brake is applied to the vehicle, so as to obtain the sled brake application time corresponding to the vehicle from the start of the sled brake application to the current moment.

[0100] S260: Determine a target skid-brake-applied vehicle whose skid-brake-applied time reaches the preset thermal capacity limit time based on the skid-brake-applied time of each vehicle currently having the skid brake applied and the preset thermal capacity limit time;

[0101] Specifically, to prevent excessive sled thermal capacity from being caused by a prolonged sled braking time, a sled thermal capacity limit time can be pre-determined. This can be determined experimentally or empirically. Specifically, if the sled braking time does not exceed the sled thermal capacity limit time, the sled will not malfunction due to excessive thermal capacity. However, if the sled braking time exceeds the sled thermal capacity limit time, the sled may malfunction due to excessive thermal capacity. Therefore, in embodiments of the present invention, a preset thermal capacity limit time can be pre-determined. Then, if the actual braking force of the train meets the braking force requirement, the sled braking time of each car currently applying the sled brake is compared with the preset thermal capacity limit time. If a car with a sled brake applied for a time greater than the preset thermal capacity limit time exists, that car is identified as the target sled brake applied car A.

[0102] S270: Determine whether there is a car in each car section that has not applied the skid brake. If so, proceed to S280;

[0103] It should be noted that if there is a car with sled brakes applied whose sled brake application duration exceeds the preset thermal capacity limit, in order to further ensure the required braking force for the entire vehicle, it is necessary to identify a car without sled brakes from all cars in the train that are not sled braked to replace the identified target car A with sled brakes applied. In this embodiment of the present invention, it can first be determined whether there are any cars in the train that are not sled braked.

[0104] S280: Determine a target un-applied skid brake car from among the cars to which the skid brake is not applied;

[0105] It can be understood that, when it is determined that there is a car in each car section that does not have the skid brake applied, one car is determined as the target non-application car B from among the cars in which the skid brake is not applied.

[0106] S290: Cancel the skid brake of the target vehicle with skid brake applied, and apply the skid brake to the target vehicle without skid brake applied.

[0107] Specifically, after determining that the target vehicle A has not been applied, the sled brake of the target vehicle A with sled brake applied and the sled brake application time determined above to be longer than the preset thermal capacity limit time can be canceled, and at the same time, the sled brake is applied to the target vehicle B without being applied, so that the sled of the target vehicle with sled brake applied and the sled brake application time longer than the preset thermal capacity limit time can be given a rest while ensuring that the braking force of the train meets the braking force required by the entire vehicle. That is, the present application can avoid friction and excessive thermal capacity caused by continuous friction of the sled of a single vehicle by adjusting the number of sled descents, the timing of sled descents, the number of resets and the timing of resets, thereby ensuring the performance of the sled and reducing the requirements of the sled on the thermal capacity index, so as to select more economical sled materials and reduce costs.

[0108] The present invention also provides a corresponding device for the sled brake control method for a maglev train, further enhancing the practicality of the method. The device can be described from the perspective of functional modules and hardware. The following describes the sled brake control device for a maglev train provided by the present invention. This device is used to implement the sled brake control method for a maglev train provided by the present invention. In this embodiment, the sled brake control device for a maglev train can include or be divided into one or more program modules. These one or more program modules are stored in a storage medium and executed by one or more processors to implement the sled brake control method for a maglev train disclosed in the above embodiment. A program module, as referred to in the present invention, refers to a series of computer program instruction segments capable of performing a specific function. These modules are more suitable for describing the execution process of the sled brake control device for a maglev train in a storage medium than the program itself. The following description will specifically explain the functions of each program module in this embodiment. The sled brake control device for a maglev train described below can be referenced in conjunction with the sled brake control method for a maglev train described above.

[0109] From the perspective of functional modules, see Figure 4 , Figure 4 This is a structural diagram of a skid brake control device for a magnetic levitation train provided by the present invention in a specific embodiment. The device may include:

[0110] The first acquisition module is used to obtain the actual braking force of the train when the train is in the skid braking process;

[0111] A first judging module, configured to judge whether the actual braking force meets the braking force requirement;

[0112] A first determining module is configured to determine a car to be subjected to skid brake application from among the cars to which skid brake has not been applied, when the actual braking force does not meet the braking force requirement;

[0113] A braking module is used to apply skid brakes to the vehicle to be applied.

[0114] In an exemplary embodiment, the method further includes:

[0115] The second acquisition module is used to acquire the sled brake application time of each car currently having the sled brake applied, when the actual braking force meets the braking force requirement;

[0116] a second determining module for determining a target skid-brake-applied vehicle whose skid-brake-applied time reaches the preset thermal capacity limit time according to the skid-brake-applied time of each vehicle currently having the skid brake applied and the preset thermal capacity limit time;

[0117] The third determining module is used to determine a target non-sled braked car from among the cars that have not had the skid brake applied;

[0118] The control module is configured to cancel the skid brake of the target vehicle that has the skid brake applied, and to apply the skid brake to the target vehicle that has not applied the skid brake.

[0119] In an exemplary embodiment, the method further includes:

[0120] The second judging module is used to judge whether there is a car in each car section that has not applied the skid brake, and if so, trigger the third determining module.

[0121] In an exemplary embodiment, the first judgment module includes:

[0122] A first obtaining unit is used to obtain the braking force required by the entire train;

[0123] The first judging unit is used to judge whether the actual braking force reaches the braking force required by the vehicle;

[0124] The first determining unit is configured to determine whether the actual braking force meets the braking force requirement when the actual braking force reaches the braking force required by the vehicle;

[0125] The second determining unit is configured to determine that, when the actual braking force is lower than the braking force required by the entire vehicle, the actual braking force does not meet the braking force requirement.

[0126] In an exemplary embodiment, the first acquiring unit includes:

[0127] A first acquisition subunit is used to obtain the current speed information and train load of the train;

[0128] a first determining subunit, configured to determine the position information of the train based on the speed information and the speed-position curve of the train;

[0129] The first calculation subunit is used to calculate the braking force required by the entire train according to the speed information, the position information and the train load;

[0130] Then, the first acquisition module includes:

[0131] The second calculation subunit is used to calculate the actual braking force of the train according to the speed information and the train load.

[0132] In an exemplary embodiment, the first computing subunit includes:

[0133] The third calculation subunit is configured to obtain the current required acceleration of the train according to the speed information and the position information in combination with the first calculation formula;

[0134] The fourth calculation subunit is used to obtain the required braking force of the train according to the required acceleration of the train and the train load in combination with the second calculation relationship; wherein:

[0135] The first calculation relationship is ;

[0136] The second calculation relationship is: ;

[0137] in, Indicates the required acceleration of the vehicle, represents the speed at time t1, represents the speed at time t2, represents the position at time t1, represents the position at time t2, It represents the braking force required for the whole vehicle, and M represents the train load.

[0138] In an exemplary embodiment, the second computing subunit is specifically configured to:

[0139] The actual braking force of the train is obtained based on the speed information and train load in combination with the third calculation formula; where:

[0140] The third relationship is: , Indicates the actual braking force of the train.

[0141] It should be noted that the sled braking control device for a magnetic levitation train provided in an embodiment of the present invention has the same beneficial effects as the sled braking control method for a magnetic levitation train provided in the above-mentioned embodiment, and for a detailed introduction to the sled braking control method for a magnetic levitation train involved in the embodiment of the present invention, please refer to the above-mentioned embodiment, and this application will not go into details here.

[0142] The above-mentioned skid brake control device for the magnetic levitation train is described from the perspective of functional modules. Furthermore, the present invention also provides an electronic device, which is described from the perspective of hardware. Figure 5A structural diagram of an electronic device provided in an embodiment of the present application, such as Figure 5 As shown, the electronic equipment includes:

[0143] Memory 20, for storing computer programs;

[0144] The processor 21 is configured to implement the steps of the sled braking control method for a magnetic levitation train in the above embodiment when executing a computer program.

[0145] The electronic device provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer, or a desktop computer.

[0146] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 21 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 21 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 21 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0147] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more magnetic disk storage devices or flash memory storage devices. In some embodiments, the memory 20 may be an internal storage unit of the electronic device, such as a server's hard drive. In other embodiments, the memory 20 may also be an external storage device of the electronic device, such as a plug-in hard drive equipped on a server, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. Furthermore, the memory 20 may include both an internal storage unit and an external storage device of the electronic device. The memory 20 may be used not only to store application software installed in the electronic device and various data, such as program code used during the execution of the skid brake control method, but also to temporarily store data that has been output or is to be output. In this embodiment, the memory 20 is used to store at least the following computer program 201. When loaded and executed by the processor 21, this computer program is capable of implementing the relevant steps of the skid brake control method disclosed in any of the aforementioned embodiments. In addition, resources stored in memory 20 may include an operating system 202 and data 203, which may be stored in either a temporary or permanent manner. Operating system 202 may include Windows, Unix, Linux, etc. Data 203 may include, but is not limited to, data corresponding to the results of the skid brake control method.

[0148] In some embodiments, the electronic device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26. Among them, the display screen 22 and the input / output interface 23, such as a keyboard, are user interfaces, and the optional user interface may also include a standard wired interface, a wireless interface, etc. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device and to display a visual user interface. The communication interface 24 may optionally include a wired interface and / or a wireless interface, such as a WI-FI interface, a Bluetooth interface, etc., which is generally used to establish a communication connection between the electronic device and other electronic devices. The communication bus 26 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0149] Those skilled in the art will understand that Figure 5 The structure shown in the figure does not constitute a limitation of the electronic device, and may include more or fewer components than shown in the figure.

[0150] It is understood that if the skid brake control method in the above-mentioned embodiment is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard drives, read-only memories (ROM), random access memories (RAM), electrically erasable programmable ROMs, registers, hard drives, removable disks, CD-ROMs, magnetic disks, or optical disks, among other media that can store program code.

[0151] Based on this, Figure 6As shown, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program 31 is stored. When the computer program 31 is executed by a processor, the steps of the above-mentioned skid brake control method are implemented.

[0152] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0153] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly included, or also includes elements inherent to such process, method, article or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising the element.

[0154] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0155] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0156] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A skid brake control method for a magnetic levitation train, characterized in that: include: When the train is in the process of skid braking, the actual braking force of the train is obtained; determining whether the actual braking force meets the braking force requirement; In the case that the actual braking force does not meet the braking force requirement, determining a car to be braked from among the cars to which the skid brake has not been applied; Applying skid brakes to the vehicle to be applied; wherein: Also includes: When the actual braking force meets the braking force requirement, obtaining the duration of the sled brake application of each car currently having the sled brake applied; Determining a target skid-brake-applied vehicle whose skid-brake-applied time reaches the preset thermal capacity limit time according to the skid-brake-applied time of each vehicle currently having the skid brake applied and the preset thermal capacity limit time; Determine a target non-application car from among the cars to which the skid brake is not applied; canceling the skid brake of the target vehicle that has skid brake applied, and applying skid brake to the target vehicle that has not skid brake applied; Before determining a target vehicle where the skid brake is not applied from among the vehicles where the skid brake is not applied, the method further comprises: It is determined whether there is a car in each car section that does not apply the skid brake. If so, the step of determining a target car that does not apply the skid brake from each car section that does not apply the skid brake is performed.

2. The method for controlling the skid brake of a suspended train according to claim 1, characterized in that: The determining whether the actual braking force meets the braking force requirement includes: Obtain the braking force required by the entire train; Determining whether the actual braking force reaches the braking force required by the vehicle; When the actual braking force reaches the braking force required by the entire vehicle, the actual braking force meets the braking force requirement; When the actual braking force is lower than the braking force required by the entire vehicle, the actual braking force does not meet the braking force requirement.

3. The method for controlling the skid brake of a levitation train according to claim 2, characterized in that: The step of obtaining the braking force required by the entire train includes: Obtaining current speed information and train load of the train; determining the position information of the train according to the speed information and the speed-position curve of the train; Calculating the required braking force of the entire train according to the speed information, the position information and the train load; Then, obtaining the actual braking force of the train includes: The actual braking force of the train is calculated according to the speed information and the train load.

4. The method for controlling the skid brake of a suspended train according to claim 3, characterized in that: The calculating the required braking force of the entire train according to the speed information, the position information, and the train load includes: Obtaining a current required acceleration of the train according to the speed information and the position information in combination with a first calculation formula; The required braking force of the train is obtained based on the required acceleration of the train and the train load in combination with a second calculation formula; wherein: The first calculation relationship is: ; The second calculation relationship is: ; in, Indicates the required acceleration of the vehicle, represents the speed at time t1, represents the speed at time t2, represents the position at time t1, represents the position at time t2, It represents the braking force required for the whole vehicle, and M represents the train load.

5. The method for controlling the skid brake of a levitation train according to claim 4, characterized in that: Calculating the actual braking force of the train according to the speed information and the train load includes: The actual braking force of the train is obtained based on the speed information and the train load in combination with a third calculation formula; wherein: The third calculation relationship is: , Indicates the actual braking force of the train.

6. A skid brake control device for a magnetic levitation train, characterized in that: include: The first acquisition module is used to obtain the actual braking force of the train when the train is in the skid braking process; A first judging module, configured to judge whether the actual braking force meets the braking force requirement; A first determining module is configured to determine a car to be subjected to skid brake application from among the cars to which skid brake has not been applied, when the actual braking force does not meet the braking force requirement; A braking module is used to apply skid brakes to the vehicle to be braked; wherein: Also includes: The second acquisition module is configured to acquire the duration of the sled brake application of each car currently having the sled brake applied, when the actual braking force meets the braking force requirement; a second determining module for determining, based on the skid brake application duration of each car currently having the skid brake applied and the preset thermal capacity limit duration, a target skid brake-applied car whose skid brake application duration reaches the preset thermal capacity limit duration; The second judging module is used to judge whether there is a car in each car section that has not applied the skid brake, and if so, trigger the third determining module; The third determining module is used to determine a target non-sled braked car from among the cars that have not had the skid brake applied; The control module is configured to cancel the skid brake of the target vehicle that has the skid brake applied, and apply the skid brake to the target vehicle that has not applied the skid brake.

7. An electronic device, characterized in that: include: Memory for storing computer programs; A processor is configured to implement the steps of the sled braking control method for a magnetic levitation train according to any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the skid brake control method for a magnetic levitation train according to any one of claims 1 to 5 are implemented.

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