JP2023066591A - BRAKE DEVICE HEALTH DETERMINATION DEVICE AND BRAKE DEVICE STRENGTH DETERMINATION METHOD - Google Patents

Abstract

To provide a brake device health determination device and a brake device health determination method capable of reducing inspection time and effort by more accurately determining the health of brake pressure.SOLUTION: A brake device health determination device for determining the health of air brake pressure of a train includes a reference value calculation part for calculating an air brake pressure reference value of a train by using information of an operation command of the train, an occupancy rate of the train and information of regenerative brake force, and calculating a determination propriety signal showing whether to execute the health determination of the air brake pressure of the train, and a health determination part for executing the health determination of the air brake pressure of the train in accordance with contents of the determination propriety signal, and performing the determination by comparing the air brake pressure reference value with the measured air brake pressure of the train.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a brake device soundness determination device and a brake device soundness determination method, and more particularly to a brake device soundness determination device and a brake device soundness determination method for determining soundness of a brake device of a railway vehicle.

In railcars, the soundness of brake devices is generally inspected at monthly inspections every three months and general inspections every four years. In this inspection, the brake pressure is measured on the assumption that the car is empty in a garage or the like. This is used to check whether the brake pressure is sufficiently applied to the command.

However, conventional periodic inspections of garages, etc., are performed by manually opening the brake valve, issuing a brake pressure command, and measuring the actual brake pressure. For this reason, the inspection is very time-consuming and troublesome. In order to reduce the number of man-hours required for periodic inspections, research is underway to substitute inspections using running data. For example, Patent Literature 1 discloses a device that determines the validity of braking using running data.

Japanese Patent Application Laid-Open No. 2019-223206

However, the method of Patent Literature 1 requires a large amount of data to make decisions based on AI (artificial intelligence) technology. Also, the braking force is dependent on the weight of the railcar and the operating command. When the brake operation command is varied, the braking force also varies, but there is a delay before the target braking force is reached. During this fluctuation, the braking force does not remain constant, and the braking pressure becomes unstable for a predetermined period of time. Since the method of Patent Document 1 always makes a determination, such an unstable brake pressure state is also used, and there is a high possibility of erroneous detection.

Furthermore, the braking equipment of railway systems consists of both regenerative braking and pneumatic braking. In normal braking, braking force is exerted by both the power regeneration brake and the air brake. On the other hand, when the output of the electric power regenerative braking force is reduced due to regeneration invalidation or the like, the air braking force increases to compensate for the electric power regenerative braking force. In this case, it takes a predetermined time until the air braking force increases, and the state becomes unstable during that time. Furthermore, if normal braking and regeneration failure cases coexist, there is a high possibility that a normal judgment cannot be made and an erroneous detection will occur. Patent Document 1 does not assume these cases.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a brake device soundness determination device and a brake device soundness determination method that can more accurately determine the soundness of brake pressure and reduce labor for inspection. do.

In order to achieve the above object, one of the typical braking device soundness determining devices of the present invention is a braking device soundness determining device for determining the soundness of the air brake pressure of a train. Calculates the air brake pressure reference value of the train using information on the train's occupancy rate and the regenerative braking force of the train, and determines whether it is permissible to judge the soundness of the air brake pressure of the train. A reference value calculation unit that calculates a signal, and a determination of the soundness of the air brake pressure of the train according to the content of the determination signal, the determination is made by comparing the air brake pressure reference value with the measured air brake pressure of the train. and a soundness determination unit that compares and determines the air brake pressure.

Furthermore, one of the brake system soundness determination methods of the present invention is a brake system soundness determination method for determining the soundness of the air brake pressure of a train, wherein the operation command of the train, the occupancy rate of the train, and the regeneration of the train a reference value calculating step of calculating an air brake pressure reference value of the train using the information of the brake force and calculating a decision propriety signal indicating whether the soundness of the air brake pressure of the train can be judged; , judging the soundness of the air brake pressure of the train according to the content of the judgment signal, and making the judgment by comparing the air brake pressure reference value and the measured air brake pressure of the train. and a soundness determination step.

ADVANTAGE OF THE INVENTION According to this invention, in a brake-system soundness determination apparatus and a brake-system soundness determination method, the soundness of a brake pressure can be judged more correctly and the labor of an inspection can be reduced.
Problems, configurations, and effects other than those described above will be clarified by the following embodiments.

FIG. 1 is a block diagram of a computer system for implementing aspects according to embodiments of the invention. FIG. 2 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 1 of the present invention. FIG. 3 is a block diagram showing an example of a reference value calculator according to the first embodiment of the present invention; FIG. 4 is a flow chart showing an example of processing of a determination determination unit according to the first embodiment of the present invention. FIG. 5 is a flowchart illustrating an example of processing of the soundness determination unit according to the first embodiment of the present invention; FIG. 6 is a graph showing an example of air brake pressure abnormality degree display in the first embodiment of the present invention. FIG. 7 is a block diagram showing an example of a brake soundness determination device according to Embodiment 2 of the present invention. FIG. 8 is a flow chart showing an example of processing of a determination yes/no signal calculation unit according to the second embodiment of the present invention. FIG. 9 is a flow chart showing an example of processing of a soundness determination unit according to the second embodiment of the present invention. FIG. 10 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 3 of the present invention. FIG. 11 is a block diagram showing an example of a reference value calculator in Example 3 of the present invention. FIG. 12 is a flow chart showing an example of processing of a determination possibility determination unit according to the third embodiment of the present invention. FIG. 13 is a flow chart showing an example of processing of the soundness determination unit according to the third embodiment of the present invention. FIG. 14 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 4 of the present invention. FIG. 15 is a block diagram showing an example of a reference value calculator according to the fourth embodiment of the present invention; FIG. 16 is a flow chart showing an example of processing of a determination possibility determination unit according to the fourth embodiment of the present invention. FIG. 17 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 5 of the present invention. FIG. 18 shows an example of an air brake pressure determination threshold table according to Embodiment 5 of the present invention. FIG. 19 is a flow chart showing an example of processing of a soundness determination unit according to the fifth embodiment of the present invention. FIG. 20 is a block diagram showing an example of a railway system in Embodiment 6 of the present invention. FIG. 21 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 6 of the present invention.

A mode for carrying out the present invention will be described.

FIG. 1 is a block diagram of a computer system 1 for implementing aspects according to embodiments of the invention. The mechanisms and apparatus of various embodiments disclosed herein may be applied to any suitable computing system.

The major components of computer system 1 include one or more processors 2 , memory 4 , terminal interface units 12 , storage interface units 14 , I/O (input/output) device interface units 16 and network interfaces 18 . These components may be interconnected via memory bus 6 , I/O bus 8 , bus interface unit 9 and I/O bus interface unit 10 .

Computer system 1 may include one or more processing units 2 A and 2 B, collectively referred to as processors 2 . Each processor 2 executes instructions stored in memory 4 and may include an on-board cache. In some embodiments, computer system 1 may include multiple processors, and in other embodiments, computer system 1 may be a single processing unit system. As the processing device, a CPU (Central Processing Unit), FPGA (Field-Programmable Gate Array), GPU (Graphics Processing Unit), or the like can be applied.

In some embodiments, memory 4 may include random access semiconductor memory, storage devices, or storage media (either volatile or non-volatile) for storing data and programs. In some embodiments, memory 4 represents the entire virtual memory of computer system 1 and may include the virtual memory of other computer systems connected to computer system 1 via a network. Although memory 4 may conceptually be considered a single entity, in other embodiments memory 4 may be a more complex arrangement, such as a hierarchy of caches and other memory devices. For example, memory may exist as multiple levels of caches, and these caches may be partitioned by function. As a result, one cache may hold instructions and another cache may hold non-instruction data used by the processor. The memory may be distributed and associated with various different processing units, such as in the so-called NUMA (Non-Uniform Memory Access) computer architecture.

Memory 4 may store all or part of the programs, modules, and data structures that implement the functions described herein. For example, memory 4 may store latent factor identification application 50 . In some embodiments, latent agent identification application 50 may include instructions or descriptions that perform the functions described below on processor 2, or may include instructions or descriptions that are interpreted by other instructions or descriptions. In some embodiments, latent factor identification application 50 may be implemented in semiconductor devices, chips, logic gates, circuits, circuit cards, and/or other physical hardware instead of or in addition to processor-based systems. It may be implemented in hardware via a device. In some embodiments, latent agent identification application 50 may include data other than instructions or descriptions. In some embodiments, a camera, sensor, or other data input device (not shown) may be provided in direct communication with bus interface unit 9, processor 2, or other hardware of computer system 1. . Such a configuration may reduce the need for processor 2 to access memory 4 and the latent factor identification application.

Computer system 1 may include a bus interface unit 9 that provides communication between processor 2 , memory 4 , display system 24 and I/O bus interface unit 10 . I/O bus interface unit 10 may be coupled to I/O bus 8 for transferring data to and from various I/O units. I/O bus interface unit 10 connects via I/O bus 8 to a plurality of I/O interface units 12, 14, 16, also known as I/O processors (IOPs) or I/O adapters (IOAs). and 18. Display system 24 may include a display controller, a display memory, or both. The display controller can provide video, audio, or both data to display device 26 . Computer system 1 may also include devices such as one or more sensors configured to collect data and provide such data to processor 2 . For example, computer system 1 may include environmental sensors that collect humidity data, temperature data, pressure data, etc., and motion sensors that collect acceleration data, motion data, etc., and the like. Other types of sensors can also be used. The functions provided by bus interface unit 9 may be implemented by an integrated circuit including processor 2 .

The I/O interface unit provides the ability to communicate with various storage or I/O devices. For example, the terminal interface unit 12 may include user output devices such as video displays, speaker televisions, etc., and user input devices such as keyboards, mice, keypads, touch pads, trackballs, buttons, light pens, or other pointing devices. Such user I/O devices 20 can be attached. A user inputs input data and instructions to the user I/O device 20 and the computer system 1 by operating the user input device using the user interface, and receives output data from the computer system 1. good too. The user interface may be displayed on a display device, played by a speaker, or printed via a printer, for example, via the user I/O device 20 .

The storage interface unit 14 may include one or more disk drives or direct access storage devices 22 (typically magnetic disk drive storage devices, but arrays of disk drives or other storage devices configured to appear as a single disk drive). device) can be attached. In some embodiments, storage device 22 may be implemented as any secondary storage device. The contents of the memory 4 may be stored in the storage device 22 and read from the storage device 22 as needed. I/O device interface unit 16 may provide an interface to other I/O devices such as printers, fax machines, and the like. Network interface 18 may provide a communication path so that computer system 1 and other devices may communicate with each other. This communication path may be, for example, network 30 .

The computer system 1 shown in FIG. 1 includes a bus structure that provides a direct communication path between processor 2, memory 4, bus interface unit 9, display system 24, and I/O bus interface unit 10; In other embodiments, computer system 1 may include hierarchical, star, or web configurations of point-to-point links, multiple hierarchical buses, parallel or redundant communication paths. Further, although I/O bus interface unit 10 and I/O bus 8 are shown as a single unit, in practice computer system 1 may include multiple I/O bus interface units 10 or multiple I/O buses. A bus 8 may be provided. Also, although multiple I/O interface units are shown for isolating the I/O bus 8 from the various communication paths leading to the various I/O devices, in other embodiments, one of the I/O devices Some or all may be directly connected to one system I/O bus.

In some embodiments, computer system 1 is a device that receives requests from other computer systems (clients) that do not have a direct user interface, such as multi-user mainframe computer systems, single-user systems, or server computers. There may be. In other embodiments, computer system 1 may be a desktop computer, handheld computer, laptop, tablet computer, pocket computer, phone, smart phone, or any other suitable electronic device.

<Example 1>
FIG. 2 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 1 of the present invention. The brake device soundness determination device 103 includes a reference value calculation section 101 and a soundness determination section 102 .

A brake device for a railway vehicle will be described. A railway vehicle braking system is installed in a train and uses regenerative braking and air braking. A regenerative brake is an electric brake that performs braking with resistance generated by operating a motor as a generator. On the other hand, an air brake is a brake that operates using compressed air as power, and has a structure such as a piston and a tank for this purpose. The pressure required to operate the air brake is the air brake pressure. With these configurations, the total braking force can be represented by the sum of the regenerative braking force and the air braking force.

Information on an operation command 151, a boarding ratio 152, a regenerative braking force 153, and an air brake pressure 156 is input from the train to the braking device soundness determination device 103. FIG. These pieces of information are received every moment in real time at intervals of a predetermined time (for example, every 200 msec). The brake device soundness determination device 103 performs the following processing using the information input for each cycle.

The operation command 151 is information for commanding actions such as power running, coasting, and braking of the train from moment to moment. Among these, the braking is information related to braking, and is information in which the strength of the braking varies step by step for each notch. For example, the information may be divided into seven levels from B1 to B7, and the higher the numerical value, the stronger the braking. The occupancy rate 152 is the occupancy rate of the train, and is a value that can be measured by using a sensor or the like on the train. The regenerative braking force 153 is a regenerative braking force generated when the train is braked, and is a value that can be measured by using a sensor or the like on the train. The air brake pressure 156 is the momentary air brake pressure of the train of the train, and this pressure is a value obtained by measuring the train using a sensor or the like.

The reference value calculator 101 acquires information on the driving command 151 , the boarding ratio 152 , and the regenerative braking force 153 . Then, the reference value calculation unit 101 calculates and outputs an air brake pressure reference value 154, and also calculates and outputs a judgment signal 155 indicating whether it is permissible to judge the soundness of the air brake pressure.

The soundness determination unit 102 acquires information on the air brake pressure reference value 154 , the determination propriety signal 155 and the air brake pressure 156 . Then, it judges the soundness of the brake pressure and outputs soundness judgment 157 .

The brake system soundness determination device 103 can be mounted on a train. Moreover, you may install on the ground side other than a train. In this case, the information of run command 151, load factor 152, regenerative braking force 153, and air brake pressure 156 are transmitted remotely from the train in question.

FIG. 3 is a block diagram showing an example of a reference value calculator according to the first embodiment of the present invention; Details of the reference value calculation unit 101 will be described with reference to FIG.

The reference value calculation unit 101 includes a train characteristic table 201, a planned deceleration calculation unit 202, a brake force calculation unit 203, an air brake force calculation unit 204, an air brake pressure reference value calculation unit 205, and a judgment determination unit 206. .

The train characteristic table 201 has at least information on the deceleration characteristic 251 of the train, the weight characteristic 252 of the train, and the air brake pressure characteristic 253 of the train. The train characteristic table 201 can be recorded in the storage unit.

The deceleration characteristic 251 is a characteristic set so that the deceleration is uniquely determined from the operation command 151 . For example, if the operation command 151 is a brake command (braking command) B1, it may be set in the form of 0.5 [km/h/s]. That is, if the deceleration for each operation command is determined in advance, it can be determined uniquely. In the following description, this deceleration is the deceleration in the case of a flat and straight line.

The weight characteristic 252 is a characteristic in which at least the empty weight of the train, the capacity of the train, and the weight corresponding to the inertial weight of the train are recorded. It can be registered in advance as a design value.

The air brake pressure characteristic 253 is a characteristic set so that the air brake force and the air brake pressure are uniquely determined. For example, when the air brake force is 300 [kN], the air brake pressure should be 345 [KPa]. In this case, these relationships may be recorded using specific numerical values, or the ratio between the air brake force and the air brake pressure may be recorded. For example, when the braking force is 300 [kN], a table format may be used in which a ratio of 1.15 is recorded.

The planned deceleration calculation unit 202 receives the train deceleration characteristics 251 from the train characteristics table 201 and the operation command 151, calculates and outputs a planned deceleration 254 of the train based on these. The deceleration characteristic 251 is a characteristic set so that the deceleration is uniquely determined from the operation command 151, as described above. Therefore, the planned deceleration 254 is uniquely obtained based on the input operation command 151 .

The braking force calculation unit 203 inputs the boarding ratio 152, the weight characteristic 252 from the train characteristics table 201, and the planned deceleration 254 from the planned deceleration calculation unit 202, and calculates the braking force 255 based on these. Output. Here, the planned deceleration 254 is β [km/h/s], the occupancy rate 152 is P [%], the empty weight of the train included in the weight characteristics 252 is W [ton], the capacity is N, and the number of passengers is N. If X [ton] is the weight of the train and Wi [ton] is the weight corresponding to the inertial weight of the train, the braking force BP [KN] is
BP=β/3.6×(W+N×P/100×X+Wi) (Formula 1)
can be calculated with This braking force BP is the overall braking force and is output as the braking force 255 .

The air brake force calculator 204 receives the brake force 255 from the brake force calculator 203 and the regenerative brake force 153, and calculates and outputs the air brake force 256 based on these. Since the air braking force 256 is obtained by subtracting the regenerative braking force 153 from the braking force 255, which is the overall braking force,
Air braking force 256 = braking force 255 - regenerative braking force 153
... (Formula 2)
can be calculated by It should be noted that although the air brake force 256 does not actually become a negative value, it may occur due to calculation depending on the measurement accuracy of the data.

The air brake pressure reference value calculator 205 inputs the air brake force 256 from the air brake force calculator 204 and the air brake pressure characteristic 253 from the train characteristic table 201, and calculates the air brake pressure of the train based on these. A reference value 154 is calculated. The air brake pressure characteristic 253 is a characteristic set so that the air brake force and the air brake pressure are uniquely determined, as described above. Therefore, the air brake pressure reference value 154 is uniquely obtained based on the input air brake force 256 .

Based on the operation command 151, the determination possibility determination unit 206 determines and outputs a determination determination signal 155 indicating whether the soundness of the air brake pressure can be determined. Details of the processing will be described with reference to FIG.

FIG. 4 is a flow chart showing an example of processing of a determination determination unit according to the first embodiment of the present invention. This processing is performed each time the information of the operation command 151 is input in the determination possibility determination unit 206 .

First, in step 301, it is checked whether this process has been executed so far on the day. If not (YES), go to step 302 . If implemented (No), go to step 303 . The relevant day here can be the day, the time range from the first train to the last train, or the like. Moreover, it is good also as the period during which the power is turned on instead of the said day.

At step 302 , the same notch determination count is reset to 0, and the process proceeds to step 303 . This process is to prevent erroneous detection that the previous data still remains when the power is turned on.

In step 303, it is determined whether or not the operation command 151 input this time is the same as the operation command 151 input last time and is a braking command. If this condition is met (Yes), go to step 304 . If this condition is not met (No), go to step 305 . For example, when the input is performed at intervals of 200 msec, the previous run command 151 is compared with the previous run command 200 msec ago. If these drive commands 151 are, for example, the same brake command B1, they are determined to be the same brake command.

At step 304 , the same notch determination count is incremented by 1, and the process proceeds to step 306 . The same notch determination count is a value that indicates how many times the same notch continues. Since the notch here corresponds to a drive command (brake command), it indicates how long the same drive command (brake command) has continued. Also, since the operation command is input at every predetermined cycle, it corresponds to how long the same notch is maintained. For example, if the same notch determination count is "3" when input is performed at intervals of 200 msec, the same operation command (brake command) is maintained for 600 msec.

A step 305 resets the same notch determination count to 0 and proceeds to a step 306 . Here, the same notch determination count is reset to 0 because the same brake command is not maintained.

A step 306 determines whether or not the same notch determination count is equal to or greater than a predetermined value. If it is equal to or greater than the predetermined value (if Yes), the process proceeds to step 307 . If it is not equal to or greater than the predetermined value (if No), the process proceeds to step 308 . An appropriate value is arbitrarily determined as the predetermined value. For example, it may be determined based on the time it takes for the output to stabilize after the brake command is issued. Examples of this time are 2 seconds or longer, 3 seconds or longer, 5 seconds or longer, and the like.

At step 307, the judgment yes/no signal 155 is judged yes, and the process ends.

At step 308, the decision yes/no signal 155 is set as no decision, and the process ends.

In this manner, the determination determination unit 206 processes the determination determination signal 155 so that the determination is permitted when the brake command is the same for a predetermined time or longer. Then, the decision yes/no signal 155 is output together with the information about the decision yes/no.

FIG. 5 is a flowchart illustrating an example of processing of the soundness determination unit according to the first embodiment of the present invention; Processing of the soundness determination unit 102 shown in FIG. 2 will be described using FIG.

First, in step 401, it is checked whether or not the decision yes/no signal 155 is ready. If the determination is possible (if Yes), the process proceeds to step 402 . If the determination is negative (if No), the process ends. That is, if the determination is negative, the soundness of the air brake pressure is not determined.

In step 402, it is determined whether or not the absolute value of the difference between the air brake pressure reference value 154 calculated by the air brake pressure reference value calculation section 205 of the soundness determination section 102 and the air brake pressure 156 is equal to or less than the reference determination value. . If it is equal to or less than the reference judgment value (if Yes), the process proceeds to step 403 . If it is not equal to or less than the reference judgment value (if No), the process proceeds to step 404 . The reference determination value is a predetermined constant that serves as a determination threshold, and may be set to 10 or 20, for example. Further, since it is considered that the air brake pressure also has a design tolerance, it may be determined using the design tolerance. Furthermore, if a railroad company or the like has thresholds for determination, they may be used.

Here, the air brake pressure reference value 154 is the air brake pressure estimated from the expected deceleration 254 based on the operation command 151 as described above. Therefore, if the operation command 151 does not change, the air brake pressure reference value 154 basically does not change. Also, the air brake pressure 156 is the air brake pressure measured on the train. Since the air brake pressure 156 is a measured value, it changes moment by moment whenever data is acquired. If the air brake operates normally in response to the operation command 151, the absolute value of the difference between the air brake pressure reference value 154 and the air brake pressure 156 is assumed to be equal to or less than the reference judgment value.

Step 403 concludes with the determination result being normal. Therefore, if the difference between the measured air brake pressure 156 and the air brake pressure reference value 154 is within a predetermined range, it is determined that there is no abnormality.

Step 404 ends with the determination result being abnormal.

As a modification, the judgment result in step 404 may be set as an anomaly sign rather than an anomaly immediately, and an anomaly may be judged when an anomaly sign is repeated several times. For example, two or more times, or three or more times. As a result, even if there is a possibility of erroneous detection if it is performed only once, the probability of being able to prevent erroneous detection increases if multiple times are set as a condition. In this case, for example, in step 402, if the difference from the reference judgment value becomes greater than a certain value, it may be determined that there is a high possibility of an abnormality, and that an abnormality is judged. That is, when the difference between the air brake pressure reference value 154 and the air brake pressure 156 is greater than the reference judgment value by a certain amount or more, the abnormality is judged once.

In this embodiment, the train characteristic table 201 is provided, and the deceleration characteristic 251, the weight characteristic 252, and the air brake pressure characteristic 253 are included in the table. However, if there is a formula or numerical value uniquely determined for the input, a method using those numerical values may be used.

For example, the deceleration characteristic 251 is
Deceleration = deceleration determined from operation command x η + gradient x ω (Equation 3)
, and a method of storing η and ω in the expected deceleration calculation unit 202 for calculation may be used.

For example, as the weight characteristics 252, the empty vehicle weight, the number of passengers, and the inertia weight may be stored in the braking force calculation unit 203.

For example, the air brake pressure characteristic 253 is
Air brake pressure reference value = γ x air brake force (Equation 4)
, and γ may be stored in the air brake pressure reference value calculator 205 and calculated.

Note that the above η, ω, and γ are not limited to constants, and may be in the form of functions. Further, some of the characteristics described above may be in the form of tables and the rest in the form of formulas.

A method of outputting an index of soundness based on the results of normality/abnormality using the above-described configuration is also conceivable. For example, the degree of anomaly calculated by the number of determinations made as abnormal/the total number of determinations is displayed for each regular period such as every day or every month. In this way, it is possible to extract brake devices that are considered to be abnormal, and indicate devices that should be prioritized and carefully examined by maintenance personnel when performing work.

FIG. 6 is a graph showing an example of air brake pressure abnormality degree display in the first embodiment of the present invention. As shown in FIG. 6, by plotting the date and time on the abscissa and the degree of anomaly in the air brake pressure on the ordinate, it is possible to catch signs of anomaly. That is, if the degree of anomaly is higher than other periods, it can be known that some kind of anomaly has clearly occurred. Further, a threshold value for determining true abnormality may be provided, and when the ratio of the degree of abnormality exceeds the threshold value for determining true abnormality, it may be determined to be abnormal.

As described above, in the first embodiment, when the same brake command continues for a predetermined period of time, it is possible to prevent the determination in an unstable state by performing the brake pressure soundness determination. Furthermore, by comparing the difference between the air brake pressure reference value 154 assumed from the brake command and the actually measured air brake pressure 156, it is possible to determine the soundness of the air brake pressure while the train is running.

<Example 2>
FIG. 7 is a block diagram showing an example of a brake soundness determination device according to Embodiment 2 of the present invention. In the second embodiment, points different from the first embodiment will be mainly described, and the same reference numerals will be given to the same portions, and the same descriptions will be omitted for portions that have no particular description.

The brake device soundness determination device 603 includes a reference value calculation section 101 , a determination availability signal calculation section 601 and a soundness determination section 602 . As in the first embodiment, the brake device soundness determination device 603 receives information on the operation command 151, the passenger load ratio 152, the regenerative braking force 153, and the air brake pressure 156. FIG.

The reference value calculator 101 is the same as that of the first embodiment, but in this embodiment, the judgment yes/no signal 155 of the first embodiment is referred to as the first judgment yes/no signal 155 for convenience, but has the same contents.

The judgment propriety signal calculator 601 acquires the information of the air brake pressure 156 and outputs the second judgment propriety signal 651 based on this.

The soundness determination unit 602 acquires information on the air brake pressure reference value 154 , the first determination yes/no signal 155 , the air brake pressure 156 , and the second determination yes/no signal 651 . Based on these, the soundness of the brake pressure is determined and a soundness determination 157 is output. Here, it is different from the soundness determination unit 102 of the first embodiment in that the second determination propriety signal 651 is taken into account.

The brake system soundness determination device 603 can be mounted on the train like the brake system soundness determination device 103 of the first embodiment, or may be installed on the ground side.

FIG. 8 is a flow chart showing an example of processing of a determination yes/no signal calculation unit according to the second embodiment of the present invention. This processing is performed each time the information on the air brake pressure 156 is input to the judgment propriety signal calculator 601 .

First, in step 701, it is checked whether this process has been performed on the current day. If not (YES), go to step 702 . If implemented (No), go to step 703 . The relevant day here can be the day, the time range from the first train to the last train, or the like. Moreover, it is good also as the period during which the power is turned on instead of the said day.

At step 702 , the brake pressure stagnation count is reset to 0 and the process proceeds to step 703 . This process is for preventing erroneous determination that the previous data still remains when the power is turned on.

A step 703 determines whether or not the air brake pressure 156 input this time is the same as the previous air brake pressure and is greater than zero. If the condition is met (Yes), go to step 704 . If the conditions are not met (No), the process proceeds to step 705 . Here, the fact that the current air brake pressure 156 is the same as the previous air brake pressure 156 means that the air brake pressure is constant for a predetermined time. Also, if the air brake pressure 156 is greater than 0, it is determined that the air brake pressure has a value.

At step 704, the second decision yes/no signal 651 is set to yes, and the process ends.

At step 705, the second decision yes/no signal 651 is set to no decision, and the process ends.

Regarding the determination that the air brake pressure 156 is the same as the previous air brake pressure performed in step 703, the accuracy of the obtained data is taken into consideration, for example, a determination threshold value ε is set,
|| current air brake pressure 156−previous air brake pressure ||≦ε
... (Formula 5)
is established. As a result, when the difference between the air brake pressure 156 and the previous air brake pressure is within a predetermined range that is considered to be the same, the second decision yes/no signal 651 is judged yes.

Also, in step 703, the condition is that the current air brake pressure 156 is the same as the previous air brake pressure. However, other than this, like the same notch determination count in the first embodiment, the condition may be the case where the same notches are repeated a plurality of times in succession. That is, it is determined whether or not the air brake pressure 156 remains the same for a predetermined number of times or more and has a value greater than zero. If they match, in step 704, the second decision yes/no signal 651 is judged yes. Here, "same for a predetermined number of times or longer" corresponds to "same for a predetermined time or longer." Moreover, the sameness in this case may be a predetermined range considered to be the same as in (Equation 5).

FIG. 9 is a flow chart showing an example of processing of a soundness determination unit according to the second embodiment of the present invention. 9 is the same except that step 401 in FIG. 5 of the first embodiment is replaced with step 801. FIG.

First, in step 801, it is checked whether the first decision yes/no signal 155 and the second decision yes/no signal 651 are judgment yes. If the condition is met (Yes), go to step 402 . If the conditions are not met (if No), the process ends.

A step 402 determines whether the absolute value of the difference between the air brake pressure reference value 154 and the air brake pressure 156 is equal to or less than the reference judgment value. If it is equal to or less than the reference judgment value (if Yes), the process proceeds to step 403 . If it is not equal to or less than the reference judgment value (if No), the process proceeds to step 404 .

Step 403 concludes with the determination result being normal.

Step 404 ends with the determination result being abnormal.

The determination method of the modification of steps 402 to 404 described in the first embodiment can be similarly applied to the present embodiment.

Also, in step 801, the determination of proceeding to step 402 when the first determination yes/no signal 155 and the second determination yes/no signal 651 indicate yes has been described. However, other than this, it is also possible to proceed to step 402 when either the first decision yes/no signal 155 or the second decision yes/no signal 651 indicates yes. When only the second determination signal 651 is used, it is not necessary to output the first determination signal 155 from the reference value calculator 101 shown in FIG. Further, in the case of using only the first judgment yes/no signal 155 without using the second judgment yes/no signal 651, the configuration is the same as the contents shown in the first embodiment.

Furthermore, in the second embodiment, the first determination signal 155 and the second determination signal 651 are calculated by the reference value calculation unit 101 and the determination signal calculation unit 601, respectively. However, the calculation of the first judgment signal 155 and the second judgment signal 651 may be performed collectively by either the reference value calculation unit 101 or the judgment signal calculation unit 601 .

As described above, in the second embodiment, when the brake pressure that is actually measured is the same as the previous time, the brake pressure soundness determination is performed, thereby preventing the determination in an unstable state. Furthermore, by combining the conditions for the case where the same brake command shown in the first embodiment continues for a predetermined period of time, it is possible to make a more accurate determination. As in the first embodiment, it is possible to determine the soundness of the brake pressure while the train is running.

<Example 3>
FIG. 10 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 3 of the present invention. In Example 3, points different from Examples 1 and 2 will be mainly described, and the same reference numerals will be given to the same portions, and the same description will be omitted for portions that have no particular description.

The brake device soundness determination device 903 includes a reference value calculation section 901 , a determination availability signal calculation section 601 and a soundness determination section 902 . The braking device soundness judging device 903 is similar to the braking device soundness judging device 103 of the first embodiment in that the information of the operation command 151, the riding ratio 152, the regenerative braking force 153, and the air brake pressure 156 are inputted. be.

The reference value calculator 901 acquires information on the driving command 151 , the boarding ratio 152 , and the regenerative braking force 153 . Then, the reference value calculation unit 901 calculates and outputs the air brake pressure reference value 154, and also calculates a first determination signal 951 indicating whether the soundness of the air brake pressure can be determined. Output.

The decision yes/no signal calculator 601 is the same as the decision yes/no signal calculator 601 of the second embodiment.

The soundness determination unit 902 acquires information on the air brake pressure reference value 154 , the first determination signal 951 , the second determination signal 651 , and the air brake pressure 156 . Then, it judges the soundness of the brake pressure and outputs soundness judgment 157 .

The brake system soundness determination device 903 can be mounted on the train like the brake system soundness determination device 103 of the first embodiment, or may be installed on the ground side.

FIG. 11 is a block diagram showing an example of a reference value calculator in Example 3 of the present invention. Details of the reference value calculation unit 901 will be described with reference to FIG. 11 .

The reference value calculation unit 901 includes a train characteristic table 201, a planned deceleration calculation unit 202, a brake force calculation unit 203, an air brake force calculation unit 204, an air brake pressure reference value calculation unit 205, and a determination possibility determination unit 1001. . A difference from the reference value calculation unit 101 described in the first embodiment is that the determination possibility determination unit 206 is replaced with a determination determination unit 1001 . Here, the judgment propriety judgment unit 1001 will be explained, and the explanation of other configurations will be omitted.

Judgment propriety determination section 1001 inputs information of operation command 151 and regenerative braking force 153, and based on these, determines and outputs first judgment propriety signal 951. FIG. Details of the processing will be described with reference to FIG.

FIG. 12 is a flow chart showing an example of processing of a determination possibility determination unit according to the third embodiment of the present invention. This processing is performed each time the data of the operation command 151 and the regenerative braking force 153 are input to the judgment propriety judging section 1001 .

First, in step 1101, it is checked whether this process has been performed on the current day. If not (YES), go to step 1102 . If it is executed (No), the process proceeds to step 1103 . This process is the same as step 301 in the first embodiment (FIG. 4).

At step 1102 , the same notch determination count is reset to 0, and the process proceeds to step 1103 . This process is the same as step 302 in the first embodiment (FIG. 4).

At step 1103, it is determined whether or not the operation command 151 input this time is the same as the previous operation command 151 and is a braking command. If this condition is met (Yes), go to step 1104 . If this condition is not met (No), go to step 1105 . This process is the same as step 303 in the first embodiment (FIG. 4).

At step 1104 , the same notch determination count is incremented by 1, and the process proceeds to step 1106 . This process is similar to step 304 in the first embodiment (FIG. 4).

At step 1105 , the same notch determination count is reset to 0, and the process proceeds to step 1106 . This process is the same as step 305 in the first embodiment (FIG. 4).

At step 1106, it is determined whether or not the same notch determination count is equal to or greater than a predetermined value. If it is equal to or greater than the predetermined value (if Yes), the process proceeds to step 1107 . If it is not equal to or greater than the predetermined value (if No), the process proceeds to step 1109 . This process is similar to step 306 in the first embodiment (FIG. 4).

At step 1107, it is determined whether or not the regenerative braking force 153 input this time is the same as the previous regenerative braking force. If they are the same (Yes), go to step 1108 . If not the same (No), go to step 1109 . The current regenerative braking force 153 being the same as the previous regenerative braking force 153 means that the regenerative braking force 153 is constant for a predetermined time.

At step 1108, the first decision yes/no signal 951 is set to yes, and the process ends.

At step 1109, the first decision yes/no signal 951 is set to no decision, and the process ends.

As a modification, for the determination that the current regenerative braking force 153 is the same as the previous regenerative braking force performed in step 1107, for example, a determination threshold value ε is provided in consideration of the accuracy of the obtained data.
|| Current regenerative braking force 153−Previous regenerative braking force ||≦ε
... (Formula 6)
is established. As a result, when the difference between the current regenerative braking force 153 and the previous regenerative braking force is within a predetermined range that is considered to be the same, the first judgment yes/no signal 951 is judged yes.

As another modification, step 1107 is based on the condition that the current regenerative braking force 153 is the same as the previous regenerative braking force 153 . However, in addition to this, like the same notch determination count, it is also possible to set the same condition for a plurality of consecutive times. That is, it is determined whether or not the regenerative braking force 153 is the same for a predetermined number of times or more. If they are the same, at step 1107, the first decision yes/no signal 951 is judged yes. Here, "same for a predetermined number of times or more" corresponds to a case of being the same for a predetermined time or longer. Also, the sameness in this case may be a predetermined range considered to be the same like (Equation 6).

FIG. 13 is a flow chart showing an example of processing of the soundness determination unit according to the third embodiment of the present invention. FIG. 13 is the same except that step 401 in FIG.

A step 1201 checks whether the first judgment yes/no signal 951 and the second judgment yes/no signal 651 are judgment yes. If the condition is met (Yes), go to step 402 . If the conditions are not met (if No), the process ends.

A step 402 determines whether the absolute value of the difference between the air brake pressure reference value 154 and the air brake pressure 156 is equal to or less than the reference determination value. If it is equal to or less than the reference judgment value (if Yes), the process proceeds to step 403 . If it is not equal to or less than the reference judgment value (if No), the process proceeds to step 404 .

Step 403 concludes with the determination result being normal.

Step 404 ends with the determination result being abnormal.

The determination method of the modification of steps 402 to 404 described in the first embodiment can be similarly applied to the present embodiment.

Also, in step 1201, the determination that the determination result is normal when the first determination yes/no signal 951 and the second determination yes/no signal 651 indicate yes has been described. However, other than this, it is also possible to proceed to step 402 when either the first judgment yes/no signal 951 or the second judgment yes/no signal 651 indicates yes.

Furthermore, in the third embodiment, the first judgment yes/no signal 951 is calculated by the reference value calculator 901 and the second judgment yes/no signal 651 is calculated by the judgment yes/no signal calculator 601 . However, the first determination signal 951 and the second determination signal 651 may be calculated in either the reference value calculation section 901 or the determination signal calculation section 601 collectively.

As described above, in the third embodiment, in addition to the determination of the notch same determination count, the condition that the regenerative braking force is constant for a predetermined period of time is set as a condition, so that the stable state can be determined more accurately. This is because if the regenerative braking force changes, the air braking force will also change, and the air braking pressure will not be stable. Other effects are similar to those of the first and second embodiments.

<Example 4>
FIG. 14 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 4 of the present invention. In Example 4, points different from Examples 1 to 3 will be mainly described, and the same reference numerals will be given to the same portions, and the same description will be omitted for portions that do not have any particular description.

The brake device soundness determination device 1302 includes a reference value calculation section 1301 , a determination availability signal calculation section 601 and a soundness determination section 902 .

In addition to the information of the driving command 151, the riding ratio 152, the regenerative braking force 153, and the air brake pressure 156 as in the first embodiment, the brake device soundness determination device 1302 receives the slip/skid information 1351. is entered.

A reference value calculation unit 1301 inputs a drive command 151 , a boarding ratio 152 , a regenerative braking force 153 , and slip/skid information 1351 . Then, the reference value calculation unit 1301 calculates and outputs the air brake pressure reference value 154, and also calculates a first determination signal 1352 indicating whether the soundness of the air brake pressure can be determined. Output.

The decision yes/no signal calculator 601 is the same as the decision yes/no signal calculator 601 of the second and third embodiments.

The soundness determination unit 902 is the same as the soundness determination unit 902 of the third embodiment, but is different in that a first determination signal 1352 is input instead of the first determination signal 951 of the third embodiment. That is, the soundness determination unit 902 acquires information on the air brake pressure reference value 154 , the first determination yes/no signal 1352 , the second determination yes/no signal 651 , and the air brake pressure 156 . Then, it judges the soundness of the brake pressure and outputs soundness judgment 157 . The contents of the processing are the same as those in FIG.

The brake system health determination device 1302 can be installed on the train. Moreover, you may install on the ground side other than a train. In this case, the information of the operation command 151, the load factor 152, the regenerative brake force 153, the air brake pressure 156, and the slip/skid information 1351 is transmitted remotely from the relevant train.

FIG. 15 is a block diagram showing an example of a reference value calculator according to the fourth embodiment of the present invention; Details of the reference value calculation unit 1301 will be described with reference to FIG. 15 .

The reference value calculation unit 1301 includes a train characteristic table 201, a planned deceleration calculation unit 202, a brake force calculation unit 203, an air brake force calculation unit 204, an air brake pressure reference value calculation unit 205, and a determination possibility determination unit 1401. . A difference from the reference value calculation unit 101 described in the first embodiment is that the determination possibility determination unit 206 is replaced with a determination determination unit 1401 . Here, the judgment propriety judgment unit 1401 will be explained, and the explanation of other configurations will be omitted.

Judgment propriety determination unit 1401 determines and outputs first judgment propriety signal 1352 based on data of drive command 151 , regenerative braking force 153 , and slip/skid information 1351 . Details of the processing will be described with reference to FIG.

FIG. 16 is a flow chart showing an example of processing of a determination possibility determination unit according to the fourth embodiment of the present invention. This processing is performed each time the information on the operation command 151 and the regenerative braking force 153 is input to the determination possibility/impossibility determination unit 1401 . As for the slip/skid information 1351, the information is input when slipping or skidding occurs.

First, in step 1501, it is checked whether this process has been performed on the current day. If not implemented (YES), go to step 1502 . If it is executed (No), the process proceeds to step 1503 . This process is the same as step 301 in the first embodiment (FIG. 4).

At step 1502 , the judgment count is reset to 0 and the process proceeds to step 1503 . This process is the same as step 302 in the first embodiment (FIG. 4).

In step 1503, it is determined whether or not there is slipping/sliding information 1351. FIG. If there is no slip/skid information 1351 (Yes), it is assumed that the vehicle is not slipping/skidding, and the process proceeds to step 1504 . If there is slipping/slipping information 1351 (No), it is assumed that the vehicle is slipping/slipping.

Slipping is a condition in which the wheels of a railroad vehicle are slipping and rotating on the rail surface. Also, sliding is a state in which the wheels of a railroad vehicle slide on the rail surface without rotating. Since such a state is an unstable state, it is preferable not to judge the soundness of the air brake pressure. The slip/skid information 1351 can be acquired from data measured in the train. The slip/skid information 1351 is information when slipping or skidding occurs, and when there is no slip/skid information 1351, it is assumed that there is no slipping or skidding.

A step 1504 decides whether or not the operation command 151 input this time is the same as the previous operation command 151 and is a brake command. If this condition is satisfied (Yes), the process proceeds to step 1505 . If this condition is not met (No), go to step 1506 . This process is the same as step 303 in the first embodiment (FIG. 4).

At step 1505 , the same notch determination count is incremented by 1, and the process proceeds to step 1507 . This process is similar to step 304 in the first embodiment (FIG. 4).

At step 1506 , the same notch determination count is reset to 0, and the process proceeds to step 1507 . This process is the same as step 305 in the first embodiment (FIG. 4).

A step 1507 determines whether or not the same notch determination count is equal to or greater than a predetermined value. If it is equal to or greater than the predetermined value (Yes), the process proceeds to step 1508 . If it is not equal to or greater than the predetermined value (if No), the process proceeds to step 1511 . This process is similar to step 306 in the first embodiment (FIG. 4).

A step 1508 judges whether or not the regenerative braking force 153 input this time is the same as the previous regenerative braking force. If they are the same (Yes), go to step 1509 . If not the same (No), go to step 1511 . This process is the same as step 1107 in the third embodiment (FIG. 12).

Step 1509 sets the first decision yes/no signal 1352 to yes and ends. This process is the same as step 307 in the first embodiment (FIG. 4).

Step 1510 resets the decision count to 0 and proceeds to step 1511 .

Step 1511 turns the first determination yes/no signal 1352 to "no" and ends. This process is the same as step 308 in the first embodiment (FIG. 4).

The above-described processing of the judgment propriety determination unit 1401 of the present embodiment is processing in consideration of the slipping/sliding information 1351 in contrast to the third embodiment. In addition to this, a configuration in which the slip/skid information 1351 is taken into account in the first and second embodiments may be employed. Specifically, the determination possibility determination unit 206 of the first and second embodiments is replaced with the determination determination unit 1401, and the like.

Also, the step of considering the regenerative braking force 153 in step 1508 may apply the modified example described in step 1107 of FIG. 12 of the third embodiment.

As described above, in the fourth embodiment, in addition to the determination of the notch same determination count, by setting the condition that no slipping or skidding has occurred, it is possible to determine the stable state more accurately. Other effects are the same as in Examples 1-3.

<Example 5>
FIG. 17 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 5 of the present invention. In the fifth embodiment, the points different from the first embodiment will be mainly described, and the same reference numerals will be given to the same portions, and the same descriptions will be omitted for portions that do not have any particular description.

The configuration of FIG. 17 of this embodiment is obtained by adding a determination threshold value calculation unit 1601 to the configuration of FIG. 1 of the first embodiment.

The brake device soundness determination device 1603 includes a reference value calculation section 101 , a determination threshold value calculation section 1601 and a soundness determination section 1602 . As in the first embodiment, the brake system soundness determination device 1603 is supplied with information on the operation command 151, the passenger load ratio 152, the regenerative braking force 153, and the air brake pressure 156. FIG.

The reference value calculator 101 is the same as in the first embodiment.

The determination threshold calculation unit 1601 acquires the information on the driving command 151 and the passenger load factor 152, calculates and outputs an air brake pressure determination threshold 1651 based on these.

Soundness determination unit 1602 determines air brake pressure soundness determination 157 from air brake pressure reference value 154, determination propriety signal 155, air brake pressure 156, and air brake pressure determination threshold value 1651, and outputs the result.

FIG. 18 shows an example of a brake pressure determination threshold table in Example 5 of the present invention. The determination threshold calculation unit 1601 will be described using the table in FIG. 18 as an example.

In the table of FIG. 18, the horizontal direction is the type of operation command. "B" indicates that it is a brake command, and the number after it indicates strength. That is, the brakes are set to be stronger brakes (higher deceleration) in the order of B1, B2, B3, . . . , B7. Also, the vertical axis represents the occupancy rate (%). The higher the boarding rate, the larger the determination threshold is set.

The determination threshold calculation unit 1601 calculates an air brake pressure determination threshold 1651 using a table in which the driving command and the boarding ratio are set as axes, respectively, as shown in FIG. In the example of FIG. 18, when the driving command is "B3" and the passenger ratio is "10%", the numerical value is "20", so the air brake pressure determination threshold value 1651 is "20". If there is no applicable data, the data may be calculated by linear interpolation or the like, or the value of the data closest to the applicable data may be used.

Note that the table used in FIG.
... (Formula 7)
It can be expressed in a form like Here, θ and δ are constants. It should be noted that it is not limited to a constant, and may be in the form of a function. Also, the operation command of (Equation 7) may be a value corresponding to the deceleration of the operation command, and can be adjusted by θ.

FIG. 19 is a flow chart showing an example of processing of a soundness determination unit according to the fifth embodiment of the present invention. Processing of the soundness determination unit 1602 will be described with reference to FIG. 19 . FIG. 19 is the same except that step 402 in FIG.

In step 401, it is checked whether or not the judgment possible/impossible signal 155 is judged possible. If the determination is possible (if Yes), the process proceeds to step 1801 . If the judgment is not possible (if No), the process ends.

A step 1801 determines whether the absolute value of the difference between the air brake pressure reference value 154 and the air brake pressure 156 is equal to or less than the air brake pressure determination threshold value 1651 . If it is equal to or less than the air brake pressure determination threshold value 1651 (if Yes), the process proceeds to step 403 . If it is not equal to or less than the air brake pressure determination threshold value 1651 (if No), the process proceeds to step 404 .

Step 403 concludes with the determination result being normal.

Step 404 ends with the determination result being abnormal.

The determination method of the modification of step 404 described in the first embodiment can be similarly applied to the present embodiment by changing the reference determination value to the air brake pressure determination threshold value 1651 .

In the fifth embodiment described above, the configuration using the air brake pressure determination threshold value 1651 is shown for the first embodiment, but the air brake pressure determination threshold value 1651 can also be used for the second to fourth embodiments. In this case, a determination threshold value calculation unit 1601 is additionally provided in the brake system soundness determination devices 603, 903, 1302, and the reference determination value in the processing of the soundness determination units 602, 902 is changed to the air brake pressure determination threshold value 1651. good.

As described above, in the fourth embodiment, by using the air brake pressure determination threshold value 1651 as the reference determination value, it is possible to determine the soundness of the air brake pressure using a more appropriate threshold value that takes into consideration the content of the drive command and the passenger load factor. Become.

<Example 6>
FIG. 20 is an example block diagram of the railway equipment in Embodiment 6 of the present invention. In Example 6, points different from Examples 1 to 5 will be mainly described, and the same reference numerals will be given to the same portions, and the same description will be omitted for portions that have no particular description.

The railway equipment of Example 6 includes a brake equipment soundness determination device 1901 and an automatic driving system 1902 .

A brake system soundness determination device 1901 receives information on a drive command 151, a vehicle load factor 152, a regenerative braking force 153, and an air brake pressure 156, and outputs a brake pressure soundness determination 157 and a brake notch 1951. FIG. The brake notch 1951 is information on the brake notch whose soundness is to be determined in the brake device of the train.

The automatic driving system 1902 is an automatic driving device that preferentially uses the brake notches 1951 to generate driving patterns. An automatic operation device is a device that can operate a train automatically without a driver.

FIG. 21 is a block diagram showing an example of a brake system soundness determination device according to Embodiment 6 of the present invention. Details of the braking device soundness determination device 1901 will be described with reference to FIG. 20 .

A brake device soundness determination device 1901 shown in FIG.

The reference value calculator 101 is the same as in the first embodiment.

The soundness determination unit 102 is the same as that of the first embodiment.

The planned pattern notch selection unit 2001 receives an operation command 151 and a decision yes/no signal 155 output by the reference value calculation unit 101 . Then, the planned pattern notch selection unit 2001 collects the data of the operation command 151 when the decision yes/no signal 155 indicates yes. Among the collected brake commands of the train operation command, the data of the brake notch corresponding to the brake command that is rarely executed or the brake command that is least judged is extracted. This extracted brake notch is output as the brake notch 1951 . In addition, when there are a plurality of brake notches that are rarely implemented, a plurality of brake notches may be output.

The automatic driving system 1902 inputs the brake notch 1951 output by the brake device soundness determination device 1901 . Then, a running pattern is created that preferentially uses the inputted brake notch 1951 . A known method may be used to create the running pattern.

In the sixth embodiment described above, a configuration is shown in which the planned pattern notch selection unit 2001 and the automatic driving system 1902 are added based on the configuration of the brake device soundness determination device 103 of the first embodiment. However, even when based on the configuration of the brake device soundness determination devices 603, 903, 1302, and 1603 of Embodiments 2 to 5, a railway system with a configuration in which the planned pattern notch selection unit 2001 and the automatic driving system 1902 are added. good.

As described above, in the sixth embodiment, in the automatic driving system, information on brake notches that are rarely used is collected, and a driving pattern that preferentially uses this brake notch is created. This makes it possible to determine the soundness of the air brake pressure at brake notches that are less performed while driving.

In addition, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

For example, in the embodiments described above, AI (artificial intelligence) technology may be applied. As a method of applying AI technology, it is possible to tune the actually input data using AI technology. For example, in FIG. 1, AI may be used to tune data collected for the value of air brake pressure reference 154 . In addition, in the soundness judgment 157, the difference between the air brake pressure 156 and the air brake pressure reference value 154 is taken for judgment, but it is also possible to tune using AI based on the data collected for the threshold used for the difference judgment. It is possible.

DESCRIPTION OF SYMBOLS 1... Computer system, 2... Processor, 2A... Processing unit, 4... Memory, 6... Memory bus, 8... I/O bus, 9... Bus interface unit, 10... I/O bus interface unit, 12... Terminal interface unit , 14... Storage interface unit, 16... I/O device interface unit, 18... Network interface, 22... Storage device, 24... Display system, 26... Display device, 30... Network, 50... Latency factor identification application, 101... Reference Value calculation unit 102 Soundness determination unit 103 Brake device soundness determination device 151 Operation command 152 Boarding rate 153 Regenerative braking force 154 Air brake pressure reference value 155 Judgment availability signal ( 156 air brake pressure 157 soundness judgment 201 train characteristic table 202 scheduled deceleration calculation unit 203 brake force calculation unit 204 air brake force calculation unit 205 Air brake pressure reference value calculator 206 Judgment determination unit 251 Deceleration characteristics 252 Weight characteristics 253 Air brake pressure characteristics 254 Planned deceleration 255 Brake force 256 Air brake force , 345 Air brake pressure 601 Judgment propriety signal calculator 602 Soundness judging unit 603 Brake device soundness judging device 651 Second judging propriety signal 901 Reference value calculator 902 Healthy 1001 ... Judgment availability determination unit 1301 Reference value calculation unit 1302 Brake device integrity determination device 1351 Gliding information 1352 First determination signal 1401 Determination determination unit 1601 Determination threshold calculation unit 1602 Soundness determination unit 1603 Brake device soundness determination device 1651 Air brake pressure determination threshold 1901 Brake Apparatus soundness determination device 1902 Automatic operation system 1951 Brake notch 2001 Planning pattern notch selection unit

Claims (15)

In a brake device soundness judgment device for judging the soundness of the air brake pressure of a train,
Using information on the operation command of the train, the occupancy rate of the train, and the regenerative braking force of the train, the air brake pressure reference value of the train is calculated, and the soundness of the air brake pressure of the train is judged. a reference value calculation unit that calculates a decision yes/no signal indicating whether the
The soundness of the air brake pressure of the train is determined according to the content of the determination signal, and the soundness is determined by comparing the air brake pressure reference value and the measured air brake pressure of the train. a gender determination unit;
A brake device soundness determination device characterized by comprising: In the brake device soundness determination device according to claim 1,
The reference value calculation unit includes a condition that the operation command is a brake command and does not fluctuate for a predetermined time or more when the judgment possible signal is judged possible,
The soundness judging device, wherein the soundness judging section judges the soundness of the air brake pressure of the train when the judgment yes/no signal indicates yes. In the brake device soundness determination device according to claim 2,
The brake device soundness determination device, wherein the reference value calculation unit includes a condition that the fluctuation of the regenerative braking force is within a predetermined range within a predetermined time when determining the determination possible/impossible signal. . In the brake device soundness determination device according to claim 2,
The brake device soundness judging device, wherein the reference value calculating unit, when judging the judging yes/no signal, includes a condition that the train is neither slipping nor skidding. In the brake device soundness determination device according to claim 1,
wherein the reference value calculation unit uses deceleration characteristics of the train, weight characteristics of the train, and brake pressure characteristics of the train to calculate the air brake pressure reference value. . In the brake device soundness determination device according to claim 1,
In the determination by the soundness determination unit, the absolute value of the difference between the air brake pressure reference value and the air brake pressure is determined to be normal when the absolute value is equal to or less than the determination threshold value, and is determined to be abnormal when the absolute value exceeds the determination threshold value. A brake device soundness determination device characterized by determining that. In the brake device soundness determination device according to claim 6,
A brake device soundness determination device, wherein the determination threshold value is calculated according to the driving command and the boarding rate. In the brake device soundness determination device according to claim 1,
In the determination by the soundness determination unit, when the number of times the absolute value of the difference between the air brake pressure reference value and the air brake pressure exceeds the determination threshold continues for a plurality of times, it is determined to be abnormal, and the determination continues for a plurality of times. A brake device soundness judgment device characterized by judging that it is normal when it does not. In a brake device soundness judgment device for judging the soundness of the air brake pressure of a train,
Using information on the operation command of the train, the occupancy rate of the train, and the regenerative braking force of the train, the air brake pressure reference value of the train is calculated, and the soundness of the air brake pressure of the train is judged. a reference value calculation unit that calculates a first determination signal indicating whether or not the
a judgment propriety signal calculation unit for calculating a second judgment propriety signal indicating whether it is permissible to judge the soundness of the air brake pressure from the measured air brake pressure of the train;
Determining the soundness of the air brake pressure of the train according to the contents of the first determination signal and the second determination signal, the determination being based on the air brake pressure reference value and the measured train. A soundness determination unit that compares and determines the air brake pressure of
A brake device soundness determination device characterized by comprising: In the brake device soundness determination device according to claim 9,
The soundness judging section judges the soundness of the air brake pressure when one of the first judgment yes/no signal and the second judgment yes/no signal indicates yes. Device. In the brake device soundness determination device according to claim 9,
The soundness judging unit judges the soundness of the air brake pressure when both of the first judgment signal and the second judgment signal are judgment possible. . In the brake device soundness determination device according to claim 11,
The judgment possibility signal calculation unit determines that the second judgment possibility signal is judgment possible when the brake pressure of the train is greater than 0 and the fluctuation of the brake pressure of the train is within a predetermined range within a predetermined time. A braking device soundness judgment device characterized by: In a brake device soundness determination method for determining soundness of air brake pressure of a train,
Using information on the operation command of the train, the occupancy rate of the train, and the regenerative braking force of the train, the air brake pressure reference value of the train is calculated, and the soundness of the air brake pressure of the train is judged. a reference value calculating step of calculating a decision yes/no signal indicating whether or not
The soundness of the air brake pressure of the train is determined according to the content of the determination signal, and the soundness is determined by comparing the air brake pressure reference value and the measured air brake pressure of the train. a gender determination step;
A method for determining soundness of a brake device, comprising: In the braking device soundness determination method according to claim 13,
The reference value calculating step includes a condition that the operation command is a brake command and does not vary for a predetermined time or longer when the determination signal indicates that the determination is possible, and
A brake device soundness judging method, wherein the soundness judging step includes judging the soundness of the air brake pressure of the train when the judgment yes/no signal indicates yes. In the braking device soundness determination method according to claim 13,
In the determination by the soundness determination step, when the absolute value of the difference between the air brake pressure reference value and the air brake pressure is equal to or less than the determination threshold value, it is determined to be normal, and when the absolute value exceeds the determination threshold value, it is determined to be abnormal. A method for judging the soundness of a brake device, characterized by judging that

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