Brake control device, propulsion control device, brake control system, skidding prevention method, wheel slip information transmission method, and brake control method

Abstract

This brake control device (20) comprises: a brake communication unit (21) that receives idling information, which is information about idling of a first wheel and detected by a propulsion control device (10), from the propulsion control device (10) that performs propulsion control for a train; and a brake control unit (22) that, on the basis of the idling information, performs control to reduce the braking force applied to a first vehicle, a first carriage, a first axle, or the first wheel in which the idling has occurred, so as to prevent the sliding of the first wheel when braking.

Description

[Technical Field]

[0001] The present disclosure relates to a brake control device, a propulsion control device, a brake control system, a slip prevention method, a idling information transmission method, and a brake control method. [Background Art]

[0002] Conventionally, trains have been configured to suppress slipping during braking. A train can suppress slipping during braking by reducing the braking force, however, simply reducing the braking force fails to obtain a required braking force, resulting in an extended braking distance until the train stops. Further, since a train performs control to suppress slipping after detecting wheel slipping, the control is performed after the occurrence of slipping. To address such a problem, Patent Document 1 discloses a technology relating to a brake control system that secures a required braking force by increasing the braking force of another vehicle when the braking force of one vehicle is reduced. Further, the brake control system described in Patent Document 1 internally generates and uses idling information to perform control for suppressing slipping. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2019-041558 [Summary of Invention] [Problem to be Solved by Invention]

[0004] In order for a train to detect idling of wheels, it is necessary to install a speed sensor at an axle end or the like of an axle. However, some common brake control systems do not have a speed sensor installed at the axle end of the axle. Therefore, a brake control system in which no speed sensor is installed at the axle end of the axle cannot detect idling, which causes a problem that control like that of the brake control system described in Patent Document 1 cannot be performed.

[0005] This disclosure has been made in view of the above, and aims to provide a brake control device that prevents skidding during braking using information on wheel slip during powering. [Means for solving the problem]

[0006] To solve the above-mentioned problems and achieve the objective, the brake control device of this disclosure includes: a brake communication unit that receives slip information, which is information about slippage of a first wheel detected by a propulsion control device that performs propulsion control of a train, during the powering of the train; and a brake control unit that performs control to prevent slippage of the first wheel during braking by reducing the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, based solely on the slippage information. The brake control unit distributes the reduction in braking force applied to the first vehicle, first bogie, first axle, or first wheel where wheel slippage has occurred to the braking force applied to the second vehicle, second bogie, second axle, or second wheel where wheel slippage has not been detected, thereby increasing the braking force and ensuring the necessary braking force for the train. It is characterized by the following: [Effects of the Invention]

[0007] The brake control device of this disclosure has the effect of being able to prevent skidding during braking by using information on wheel slip during powering. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows an example of the configuration of a train equipped with the brake control device according to Embodiment 1. [Figure 2] This figure shows an example of the configuration of a brake control system installed in each car of a train according to Embodiment 1. [Figure 3] Flowchart showing the operation of the brake control system according to Embodiment 1 [Figure 4] This figure shows an example of a processing circuit for realizing the brake control device according to Embodiment 1, which is composed of a processor and memory. [Figure 5] This figure shows an example of a case where the processing circuit for realizing the brake control device according to Embodiment 1 is configured with dedicated hardware. [Figure 6] This figure shows an example of the configuration of a train equipped with the brake control device according to Embodiment 2. [Figure 7]This figure shows an example of the configuration of a brake control system installed in each car of a train according to Embodiment 2. [Figure 8] Flowchart showing the operation of the brake control system according to Embodiment 2 [Modes for carrying out the invention]

[0009] The brake control device, propulsion control device, brake control system, skidding prevention method, wheel slip information transmission method, and brake control method according to embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0010] Embodiment 1. Figure 1 shows an example of the configuration of a train 1 equipped with a brake control device 20 according to Embodiment 1. Train 1 is composed of vehicles 2a to 2d. In the following description, vehicles 2a to 2d will be referred to as vehicle 2 unless otherwise distinguished. In the example of Figure 1, train 1 is a four-car train consisting of four vehicles 2, but the number of vehicles 2 is not limited to four; it may be three or fewer, or five or more. Each vehicle 2 of train 1 is equipped with a propulsion control device 10 and a brake control device 20.

[0011] The propulsion control device 10 controls the propulsion of the train 1. In this embodiment, the propulsion control device 10 detects the wheels 51 that are slipping on the train 1 as it travels on the rails 50. The brake control device 20 controls the brakes on the train 1. In this embodiment, the brake control device 20 prevents the wheels 51 from skidding by reducing the braking force of the wheels 51 that have been detected to be slipping by the propulsion control device 10, that is, it prevents skidding from occurring. The brake control device 20 also ensures the necessary braking force for the train 1 by increasing the braking force of the wheels 51 that have not been detected to be slipping by the propulsion control device 10. In the following description, the wheels 51 that have been detected to be slipping by the propulsion control device 10 may be referred to as the first wheels, and the wheels 51 that have not been detected to be slipping by the propulsion control device 10 may be referred to as the second wheels.

[0012] In each car 2 of train 1, a brake control system is configured by a propulsion control device 10 and a brake control device 20. Figure 2 is a diagram showing an example configuration of the brake control system 40 installed in each car 2 of train 1 according to Embodiment 1. As shown in Figure 2, the brake control system 40 comprises a propulsion control device 10 and a brake control device 20. Figure 2 is also a block diagram showing an example configuration of the propulsion control device 10 and a block diagram showing an example configuration of the brake control device 20. As shown in Figure 2, the propulsion control device 10 comprises a slip detection unit 11 and a propulsion communication unit 12. The brake control device 20 comprises a brake communication unit 21 and a brake control unit 22.

[0013] In the propulsion control device 10, the slip detection unit 11 determines whether or not slippage occurs in the wheels 51 of the train 1 when the train 1 is being powered. If it determines that slippage has occurred in the wheels 51, it generates slippage information, which is information about the slippage of the detected wheels 51. The slippage detection unit 11 generates slippage information that includes at least one of the following as the slippage status of the wheels 51 indicated by the slippage information: the frequency of slippage of the wheels 51, the duration when slippage occurs in the wheels 51, the location where slippage occurs in the wheels 51, and the torque value of the electric motor that drives the wheels 51.

[0014] The frequency of wheel slippage of wheel 51 is, for example, the number of times wheel slippage occurred on wheel 51 during a specified period. The duration of wheel slippage is, for example, the period of time during which wheel slippage continued when wheel slippage occurred on wheel 51. The point of wheel slippage is, for example, the position of train 1 when wheel slippage occurred on wheel 51. The position of train 1 may be the distance in kilometers from a specified point on the route on which train 1 is traveling, or it may be a position that can be determined by a coordinate system such as latitude and longitude that can be determined by a GNSS (Global Navigation Satellite System) such as GPS (Global Positioning System). The torque value of the electric motor driving wheel 51 is a value expressed as a current value or the like that indicates the operating state of the electric motor (not shown) driving wheel 51. Note that the slippage information may include information other than this information.

[0015] The idling detection unit 11 generates idling information regardless of the cause of idling when idling occurs at the wheel 51. The idling detection unit 11 outputs the generated idling information to the propulsion communication unit 12.

[0016] The propulsion communication unit 12 transmits the idling information generated by the idling detection unit 11 to the brake control device 20 that performs brake control for the train 1. In the present embodiment, the propulsion communication unit 12 transmits the idling information directly to the brake control device 20.

[0017] In the brake control device 20, the brake communication unit 21 receives idling information, which is information about idling of the wheel 51 serving as a first wheel detected by the propulsion control device 10, from the propulsion control device 10 that performs propulsion control for the train 1. In the present embodiment, the brake communication unit 21 directly receives the idling information from the propulsion communication unit 12 of the propulsion control device 10. The brake communication unit 21 outputs the received idling information to the brake control unit 22.

[0018] When the brake control unit 22 receives slip information from the brake communication unit 21, it determines whether or not slippage has occurred due to the wheel 51. Depending on the circumstances of the slippage of the wheel 51 included in the slippage information, the brake control unit 22 adopts the slippage information if it determines that the slippage of the wheel 51 is due to the mirror-like finish of the wheel tread, or to dirt such as oil adhering to the wheel tread. The brake control unit 22 does not adopt the slippage information if the slippage of the wheel 51 is due to the rail 50, such as when the rail 50 is wet due to rain, snow, or nearby bodies of water. For example, the brake control unit 22 may maintain map information showing the locations of bodies of water around the rail 50 and determine that slippage of the wheel 51 at the location of a nearby body of water is due to the rail 50, or it may use weather information of the train 1's location to determine that slippage of the wheel 51 in rainy or snowy conditions is due to the rail 50. Map information is information that shows locations where slippage of the wheel 51 is likely to occur. Thus, the brake control unit 22 adopts the slip information when it determines that slippage has occurred due to the wheel 51. The brake control unit 22 does not adopt the slip information when it determines that slippage has occurred at the wheel 51 due to the rail 50. When the brake control unit 22 adopts the slip information, it uses the slip information to reduce the braking force applied to the wheel 51, which is the first vehicle, first bogie, first axle, or first wheel, in order to prevent the wheel 51 from sliding during braking. The brake control unit 22 also distributes the reduction in braking force applied to the wheel 51, which is the first vehicle, first bogie, first axle, or first wheel, to the braking force applied to the wheel 51, which is the second vehicle, second bogie, second axle, or second wheel, in order to increase the braking force applied to the wheel 51, which is the second vehicle, second bogie, second axle, or second wheel, in order to ensure that the necessary braking force is secured for train 1.

[0019] In the present embodiment, as shown in FIG. 1, the wheel 51 indicated by the dotted line is taken as a first wheel, and while only a part of the wheel 51 is shown to simplify the description, the wheel 51 indicated by the solid line is taken as a second wheel. Here, in a train 1, each brake control device 20 mounted on each car 2 can cooperate with the brake control devices 20 of other cars 2 to increase or decrease braking force among the brake control devices 20. Therefore, the brake control device 20 of the car 2 in which idling of the wheel 51 is detected by the propulsion control device 10 controls to increase the braking force applied to the wheel 51 of the same car 2 in which idling is not detected, or the axle corresponding to the wheel 51 of the same car 2 in which idling is not detected, or the bogie constituted by the wheels 51 of the same car 2 in which idling is not detected, or the wheel 51 of another car 2 in which idling is not detected. This can compensate for the decrease in braking force applied to the wheel 51 that is the first wheel. Note that, as a control unit for increasing or decreasing the braking force, the brake control unit 22 may determine which unit to use for control among the car 2, the bogie, the axle, or the wheel 51 in accordance with a normal braking force adjustment unit, or may determine the control unit in accordance with the position of the wheel 51 where idling occurs, the number of wheels 51 where idling occurs, or the like.

[0020] The brake control unit 22 adjusts the amount of decrease in braking force applied to the first car, the first bogie, the first axle, or the wheel 51 that is the first wheel where idling has occurred, in accordance with the idling occurrence status of the wheel 51 that is the first wheel indicated by the idling information. As described above, the idling occurrence status of the first wheel includes at least one of the idling occurrence frequency of the wheel 51 that is the first wheel, the duration time when idling occurs on the wheel 51 that is the first wheel, the idling occurrence position of the wheel 51 that is the first wheel, and the torque value of the electric motor that drives the wheel 51 that is the first wheel. The idling information may include information other than these items of information.

[0021] Figure 3 is a flowchart illustrating the operation of the brake control system 40 according to Embodiment 1. In the brake control system 40, the slip detection unit 11 of the propulsion control device 10 determines whether or not slippage has occurred on the wheels 51 during the powering of the train 1 (step S11) (step S12). If slippage has not occurred on the wheels 51 (step S12: No), the slip detection unit 11 returns to step S11. If slippage has occurred on the wheels 51 (step S12: Yes), the slip detection unit 11 generates slippage information, which is information about the slippage of the wheels 51 (step S13). The propulsion communication unit 12 of the propulsion control device 10 transmits the slippage information generated by the slippage detection unit 11 to the brake control device 20 (step S14).

[0022] In the brake control device 20, the brake communication unit 21 receives slip information transmitted from the propulsion communication unit 12 of the propulsion control device 10 (step S15). When the brake control unit 22 decides to accept the slip information, it corrects the ratio of the braking force applied to the wheels 51, i.e., the first wheel and the second wheel, so as to decrease the braking force applied to the first wheel 51 where slippage occurred and increase the braking force applied to the second wheel 51 where slippage did not occur (step S16). During braking (step S17), the brake control unit 22 determines whether or not skidding has occurred on the wheel 51 (step S18). If skidding has not occurred on the wheel 51 (step S18: No), the brake control unit 22 returns to step S17. If skidding has occurred on the wheel 51 (step S18: Yes), the brake control unit 22 corrects the ratio of the braking force applied to the wheels 51, i.e., the first wheel and the second wheel, again (step S16).

[0023] Next, the hardware configuration of the brake control device 20 will be described. In the brake control device 20, the brake communication unit 21 is a communication device. The brake control unit 22 is implemented by a processing circuit. The processing circuit may be a processor and memory that execute a program stored in memory, or it may be dedicated hardware.

[0024] Figure 4 shows an example of a case where the processing circuit 90 that implements the brake control device 20 according to Embodiment 1 is configured with a processor 91 and a memory 92. When the processing circuit 90 is configured with a processor 91 and a memory 92, each function of the processing circuit 90 of the brake control device 20 is realized by software, firmware, or a combination of software and firmware. The software or firmware is written as a program and stored in the memory 92. In the processing circuit 90, each function is realized by the processor 91 reading and executing the program stored in the memory 92. In other words, the processing circuit 90 is equipped with a memory 92 for storing the program that will ultimately be executed as the processing of the brake control device 20. Furthermore, these programs can be said to cause the computer to execute the procedures and methods of the brake control device 20.

[0025] The above program can also be described as a program that causes the brake control device 20 to execute the following: first step: the brake communication unit 21 receives slip information from the propulsion control device 10, which controls the propulsion of the train 1, which is information about the slippage of the first wheel, wheel 51, detected by the propulsion control device 10; and second step: the brake control unit 22 performs control based on the slippage information to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel, wheel 51, where the slippage has occurred, in order to prevent the first wheel, wheel 51, from sliding during braking.

[0026] Here, the processor 91 may be a CPU (Central Processing Unit), processing unit, arithmetic unit, microprocessor, microcomputer, or DSP (Digital Signal Processor), etc. The memory 92 may be, for example, a non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (Registered Trademark) (Electrically EPROM), magnetic disk, flexible disk, optical disk, compact disk, minidisc, or DVD (Digital Versatile Disc).

[0027] Figure 5 shows an example of a case where the processing circuit 93 that implements the brake control device 20 according to Embodiment 1 is configured with dedicated hardware. When the processing circuit 93 is configured with dedicated hardware, the processing circuit 93 shown in Figure 5 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof. Each function of the brake control device 20 may be implemented by the processing circuit 93 separately, or each function may be implemented together by the processing circuit 93.

[0028] Furthermore, some of the functions of the brake control device 20 may be implemented using dedicated hardware, while others may be implemented using software or firmware. In this way, the processing circuit can implement the above-mentioned functions using dedicated hardware, software, firmware, or a combination thereof.

[0029] The hardware configuration of the brake control device 20 has been described, and the hardware configuration of the propulsion control device 10 is similar. In the propulsion control device 10, the propulsion communication unit 12 is a communication device. The wheel slip detection unit 11 is implemented by a processing circuit. The processing circuit may be a processor and memory that execute a program stored in memory, or it may be dedicated hardware.

[0030] As described above, according to this embodiment, when a propulsion control device 10 installed in each car 2 of train 1 detects wheel slippage of a wheel 51, it generates slippage information indicating the slipping wheel 51 and transmits it to the brake control device 20. When the brake control device 20 accepts the slippage information, it reduces the braking force applied to the wheel 51 in which slippage was detected by the propulsion control device 10 based on the slippage information. As a result, the brake control device 20 can prevent wheel slippage during braking by using the slippage information during powering. The brake control device 20 can prevent wheel slippage by using the slippage information during powering, thus avoiding reactive control that prevents slippage after it has occurred. Furthermore, the brake control device 20 can ensure the necessary braking force for train 1 by distributing the reduction in braking force applied to the slipping wheel 51 to increase the braking force applied to the other wheels 51 in which slippage has not been detected.

[0031] In this embodiment, the propulsion control device 10 generates slip information and transmits it to the brake control device 20 regardless of the cause of slippage when slippage occurs in the wheel 51, but is not limited to this. The propulsion control device 10 may transmit slippage information to the brake control device 20 when slippage occurs in the wheel 51 due to the wheel 51. For example, the slippage detection unit 11 generates slippage information when it determines that slippage has occurred due to the wheel 51, and does not generate slippage information when it determines that slippage has occurred due to the rail 50. In this case, the slippage detection unit 11 of the propulsion control device 10 uses the information obtained when the brake control unit 22 of the brake control device 20 determines the cause of slippage of the wheel 51, i.e., the slippage information, as described above, to determine the cause of slippage of the wheel 51. As a result, the slippage of the first wheel, wheel 51, detected by the propulsion control device 10 and indicated by the slippage information transmitted from the propulsion control device 10 to the brake control device 20 is slippage caused by the first wheel, wheel 51. Even in this case, the brake control device 20 can obtain the same effects as described above. Furthermore, compared to the case where the propulsion control device 10 transmits slip information regardless of the cause of slippage, the transmission of slippage information from the propulsion control device 10 can be reduced, thereby reducing the amount of communication within the brake control system 40. The slippage detection unit 11 of the propulsion control device 10 may generate slippage information regardless of the cause of slippage, output the generated slippage information to the propulsion communication unit 12 when it determines that slippage is caused by the wheel 51, and not output the generated slippage information to the propulsion communication unit 12 when it determines that slippage is caused by the rail 50.

[0032] Embodiment 2. Embodiment 2 describes a case in which each car 2 of train 1 is equipped with a train integrated management system, or TCMS (Train Control and Monitoring System).

[0033] Figure 6 shows an example configuration of a train 1 equipped with the brake control device 20 according to Embodiment 2. The train 1 shown in Figure 6 has a TCMS 30 added to each car 2 compared to the train 1 of Embodiment 1 shown in Figure 1. Figure 7 shows an example configuration of a brake control system 40 installed in each car 2 of the train 1 according to Embodiment 2. As shown in Figure 7, the brake control system 40 comprises a propulsion control device 10, a brake control device 20, and a TCMS 30. In Embodiment 2, the propulsion communication unit 12 of the propulsion control device 10 transmits wheel slip information to the brake communication unit 21 of the brake control device 20 via the TCMS 30. The brake communication unit 21 of the brake control device 20 receives wheel slip information from the propulsion communication unit 12 of the propulsion control device 10 via the TCMS 30.

[0034] Figure 8 is a flowchart showing the operation of the brake control system 40 according to Embodiment 2. In the flowchart shown in Figure 8, the operations from steps S11 to S13 and from steps S16 to S18 are the same as the operations from steps S11 to S13 and from steps S16 to S18 in the flowchart of Embodiment 1 shown in Figure 3. The propulsion communication unit 12 of the propulsion control device 10 transmits the slip information generated by the slip detection unit 11 to the TCMS 30 (step S14). In Embodiment 2, the destination to which the propulsion communication unit 12 transmits the slip information is different from the destination in Embodiment 1. The TCMS 30 forwards the slip information transmitted from the propulsion communication unit 12 of the propulsion control device 10 to the brake control device 20 (step S21). The brake communication unit 21 of the brake control device 20 receives the slip information forwarded from the TCMS 30 (step S15). In Embodiment 2, the source of the slip information when the brake communication unit 21 receives the slip information is different from the source in Embodiment 1.

[0035] As described above, according to this embodiment, each car 2 in train 1 is equipped with a TCMS 30. The propulsion control device 10 transmits wheel slip information to the brake control device 20 via the TCMS 30. In this case as well, the brake control device 20 can obtain the same effects as in Embodiment 1.

[0036] Although the description has focused on the case where the TCMS30 simply transmits slip information, it is not limited to this. Since each car 2 of train 1 is equipped with a TCMS30, the TCMS30 may perform some of the control functions performed by the brake control device 20, such as correcting the braking force distribution ratio for the wheels 51, i.e., the first and second wheels. In this case as well, the brake control device 20 can obtain the same effects as in Embodiment 1.

[0037] Furthermore, the TCMS30 may determine the cause of wheel slippage using information obtained when the brake control unit 22 of the brake control device 20, as described in Embodiment 1, determines the cause of wheel slippage. If the TCMS30 determines that the slippage is caused by the wheel 51, it transmits the slippage information to the brake control device 20; if it determines that the slippage is not caused by the wheel 51, it does not transmit the slippage information to the brake control device 20. In this case as well, the brake control device 20 can obtain the same effects as described above. In addition, compared to the case where the TCMS30 transmits slippage information regardless of the cause of slippage, the transmission of slippage information from the TCMS30 can be reduced, thus reducing the amount of communication within the brake control system 40.

[0038] The configurations shown in the above embodiments are merely examples, and it is possible to combine them with other known technologies, combine different embodiments, and omit or modify parts of the configuration without departing from the gist of the invention. The various aspects of this disclosure are summarized below as an appendix. (Note 1) A brake communication unit receives slip information, which is information about the slippage of the first wheel detected by a propulsion control device that controls the propulsion of the train, A brake control unit that, based on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. A brake control device characterized by comprising the following: (Note 2) The brake control unit distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where wheel slippage has occurred, thereby ensuring the necessary braking force for the train. The brake control device according to Appendix 1, characterized in that it is a brake control device as described in Appendix 1. (Note 3) The brake control unit adjusts the amount of reduction in braking force applied to the first vehicle, the first bogie, the first axle, or the first wheel when slippage occurs, according to the slippage information indicating the occurrence of slippage of the first wheel. A brake control device according to Appendix 1 or 2, characterized by the above. (Note 4) The conditions for the slippage of the first wheel include at least one of the following: the frequency of slippage of the first wheel, the duration of slippage when it occurs on the first wheel, the location where slippage of the first wheel occurs, and the torque value of the electric motor driving the first wheel. The brake control device according to Appendix 3, characterized in that it is a brake control device. (Note 5) The brake communication unit receives the wheel slip information directly from the propulsion control device or from the propulsion control device via the train integrated management system. A brake control device according to any one of the appendices 1 to 4, characterized in that it is a brake control device. (Note 6) The brake control unit adopts the slippage information when it determines that slippage has occurred due to the first wheel. A brake control device according to any one of the appendices 1 to 5, characterized in that it is a brake control device. (Note 7) The slippage of the first wheel detected by the propulsion control device, as indicated by the slippage information, is caused by the first wheel. A brake control device according to any one of the appendices 1 to 5, characterized in that it is a brake control device. (Note 8) A slip detection unit determines whether or not slippage occurs in the wheels of the train when the train is being powered, and if it determines that slippage has occurred in the wheels, it generates slippage information, which is information about the slippage of the detected wheels. A propulsion communication unit that transmits the slip information to a brake control device that controls the brakes of the train, A propulsion control device characterized by comprising: (Note 9) The slip detection unit generates slip information that includes at least one of the following as the slip situation of the wheel indicated by the slip information: the frequency of slip occurrence of the wheel, the duration when slip occurs on the wheel, the location where slip occurs on the wheel, and the torque value of the electric motor that drives the wheel. The propulsion control device described in Appendix 8, characterized in that it is a propulsion control device. (Note 10) The propulsion communication unit transmits the wheel slip information directly or via the train integrated management system to the brake control device. The propulsion control device according to appendix 8 or 9, characterized in that it is a propulsion control device. (Note 11) The slip detection unit generates slip information when it determines that slippage has occurred due to the wheel, or outputs the generated slip information to the propulsion communication unit when it determines that slippage has occurred due to the wheel. A propulsion control device according to any one of appendices 8 to 10, characterized in that it is a propulsion control device. (Note 12) A propulsion control device that determines whether or not wheel slip occurs on the first wheel of the train when the train is being powered, and generates and transmits wheel slip information, which is the information of the wheel slip of the first wheel that was detected when it is determined that wheel slip has occurred on the first wheel, A brake control device that, based on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. A brake control system characterized by comprising the following features. (Note 13) The brake control device distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where wheel slip has occurred, thereby ensuring the necessary braking force for the train. The brake control system according to Appendix 12, characterized in that it is a brake control system as described in Appendix 12. (Note 14) The brake control device adjusts the amount of reduction in braking force applied to the first vehicle, the first bogie, the first axle, or the first wheel when wheel slip occurs, according to the wheel slip information indicating the occurrence of wheel slip of the first wheel. A brake control system as described in appendix 12 or 13, characterized by the features described herein. (Note 15) The propulsion control device generates the slip information, which includes at least one of the following as the slip situation of the first wheel indicated by the slip information: the frequency of slip occurrence of the first wheel, the duration when slip occurs on the first wheel, the location where slip occurs on the first wheel, and the torque value of the electric motor that drives the first wheel. The brake control system described in Appendix 14, characterized by the features described herein. (Note 16) The propulsion control device transmits the wheel slip information directly or via the train integrated management system to the brake control device. The brake control device receives the wheel slip information directly from the propulsion control device, or from the propulsion control device via the train integrated management system. A brake control system according to any one of appendices 12 to 15, characterized in that it is the brake control system described in any one of appendices 12 to 15. (Note 17) The brake control device adopts the slippage information when it determines that slippage has occurred due to the first wheel. A brake control system according to any one of appendices 12 to 16, characterized in that it is the brake control system described in any one of appendices 12 to 16. (Note 18) The brake communication unit receives slip information, which is information about the slippage of the first wheel detected by the propulsion control device, from the propulsion control device that controls the propulsion of the train. A second step in which the brake control unit, based on the slippage information, performs control to reduce the braking force applied to the first vehicle or first bogie or first axle or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. A method for preventing skidding, characterized by including the following: (Note 19) The slip detection unit determines whether or not slippage occurs in the wheels of the train when the train is being powered, and if it determines that slippage has occurred in the wheels, it generates slippage information, which is information about the slippage of the detected wheels. The second step is for the propulsion communication unit to transmit the wheel slip information to the brake control device that controls the brakes of the train, A method for transmitting idle information, characterized by including the following: (Note 20) The first step involves the propulsion control device determining whether or not wheel slip occurs on the first wheel of the train during powered operation, and if it determines that wheel slip has occurred on the first wheel, generating and transmitting wheel slip information, which is information about the wheel slip of the first wheel that was detected. A second step in which the brake control device, based on the slip information, performs control to reduce the braking force applied to the first vehicle or first bogie or first axle or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. A brake control method characterized by including the following: [Explanation of symbols]

[0039] 1 Train, 2,2a~2d Vehicles, 10 Propulsion control device, 11 Wheel slip detection unit, 12 Propulsion communication unit, 20 Brake control device, 21 Brake communication unit, 22 Brake control unit, 30 TCMS, 40 Brake control system, 50 Rail, 51 Wheel, 90,93 Processing circuit, 91 Processor, 92 Memory.

Claims

1. A brake communication unit receives slip information, which is information about the slippage of the first wheel detected by the propulsion control device during the powering of the train, from a propulsion control device that controls the propulsion of the train. A brake control unit that, based solely on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control unit distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where slippage has occurred, thereby ensuring the necessary braking force for the train. A brake control device characterized by the following features.

2. The brake communication unit receives the wheel slip information directly from the propulsion control device or from the propulsion control device via the train integrated management system. The brake control device according to feature 1.

3. A brake communication unit that receives slip information, which is information about slippage of a first wheel detected by a propulsion control device that performs propulsion control of a train, during powering of the train, A brake control unit that, based solely on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control unit adjusts the amount of reduction in braking force applied to the first vehicle, first bogie, first axle, or first wheel where the slippage occurred, according to the slippage information indicating the occurrence of slippage of the first wheel. The conditions for the slippage of the first wheel include at least one of the following: the frequency of slippage of the first wheel, the duration of slippage when it occurs on the first wheel, the location where slippage of the first wheel occurs, and the torque value of the electric motor driving the first wheel. A brake control device characterized by the following features.

4. The brake communication unit receives the wheel slip information directly from the propulsion control device or from the propulsion control device via the train integrated management system. The brake control device according to feature 3.

5. A brake communication unit that receives slip information, which is information about slippage of a first wheel detected by a propulsion control device that performs propulsion control of a train, during powering of the train, A brake control unit that, based solely on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control unit adopts the slippage information when it determines that slippage has occurred due to the first wheel. A brake control device characterized by the following features.

6. A brake communication unit that receives slip information, which is information about slippage of a first wheel detected by a propulsion control device that performs propulsion control of a train, during powering of the train, A brake control unit that, based solely on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The slippage of the first wheel detected by the propulsion control device, as indicated by the slippage information, is caused by the first wheel. A brake control device characterized by the following features.

7. A slip detection unit determines whether or not slippage occurs in the wheels of the train when the train is being powered, and if it determines that slippage has occurred in the wheels, it generates slippage information, which is information about the slippage of the detected wheels. A propulsion communication unit that transmits the slip information to a brake control device that controls the brakes of the train, Equipped with, The slip detection unit generates slip information that includes at least one of the following as the slip situation of the wheel indicated by the slip information: the frequency of slip occurrence of the wheel, the duration when slip occurs on the wheel, the location where slip occurs on the wheel, and the torque value of the electric motor that drives the wheel. A propulsion control device characterized by the following features.

8. The propulsion communication unit transmits the wheel slip information directly or via the train integrated management system to the brake control device. The propulsion control device according to feature 7.

9. The slip detection unit generates slip information when it determines that slippage has occurred due to the wheel, or outputs the generated slip information to the propulsion communication unit when it determines that slippage has occurred due to the wheel. The propulsion control device according to feature 7 or 8.

10. A propulsion control device that determines whether or not wheel slip occurs on the first wheel of the train when the train is being powered, and generates and transmits wheel slip information, which is the detected wheel slip information of the first wheel, when it is determined that wheel slip has occurred on the first wheel. A brake control device that, based solely on the slip information, reduces the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control device distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where wheel slip has occurred, thereby ensuring the necessary braking force for the train. A brake control system characterized by the following features.

11. The propulsion control device transmits the wheel slip information directly or via the train integrated management system to the brake control device. The brake control device receives the wheel slip information directly from the propulsion control device, or from the propulsion control device via the train integrated management system. The brake control system according to claim 10, characterized in that it is as described above.

12. A propulsion control device that determines whether or not wheel slip occurs on the first wheel of a train when the train is being powered, and generates and transmits wheel slip information, which is information about the wheel slip of the first wheel detected when it is determined that wheel slip has occurred on the first wheel, A brake control device that, based solely on the slip information, reduces the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control device adjusts the amount of reduction in braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, according to the slippage information indicating the occurrence of slippage of the first wheel. The propulsion control device generates the slip information, which includes at least one of the following as the slip situation of the first wheel indicated by the slip information: the frequency of slip occurrence of the first wheel, the duration when slip occurs on the first wheel, the location where slip occurs on the first wheel, and the torque value of the electric motor that drives the first wheel. A brake control system characterized by the following features.

13. The propulsion control device transmits the wheel slip information directly or via the train integrated management system to the brake control device, The brake control device receives the wheel slip information directly from the propulsion control device, or from the propulsion control device via the train integrated management system. The brake control system according to claim 12, characterized in that it is as described above.

14. A propulsion control device that determines whether or not wheel slip occurs on the first wheel of a train when the train is being powered, and generates and transmits wheel slip information, which is information about the wheel slip of the first wheel detected when it is determined that wheel slip has occurred on the first wheel, A brake control device that, based solely on the slip information, reduces the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Equipped with, The brake control device uses the slip information when it determines that slippage has occurred due to the first wheel. A brake control system characterized by the following features.

15. The brake communication unit receives slip information, which is information about the slippage of the first wheel detected by the propulsion control device during the powering of the train, from the propulsion control device that controls the propulsion of the train. A second step in which the brake control unit, based solely on the slip information, performs control to reduce the braking force applied to the first vehicle, first bogie, first axle, or first wheel where slippage has occurred, thereby preventing the first wheel from sliding during braking. Includes, In the second step, the brake control unit distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where slippage has occurred, to the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where slippage has not been detected, thereby ensuring the necessary braking force for the train. A method for preventing skidding, characterized by the features described above.

16. The slip detection unit determines whether or not slippage occurs in the wheels of the train when the train is being powered, and if it determines that slippage has occurred in the wheels, it generates slippage information, which is information about the slippage of the detected wheels. The second step is for the propulsion communication unit to transmit the wheel slip information to the brake control device that controls the brakes of the train, Includes, In the first step, the slip detection unit generates slip information that includes at least one of the following as the slip situation of the wheel indicated by the slip information: the frequency of slip occurrence of the wheel, the duration when slip occurs on the wheel, the location where slip occurs on the wheel, and the torque value of the electric motor that drives the wheel. A method for transmitting idle information, characterized by the following features.

17. The first step involves the propulsion control device determining whether or not wheel slip occurs on the first wheel of the train during powered operation, and if it determines that wheel slip has occurred on the first wheel, generating and transmitting wheel slip information, which is information about the wheel slip of the first wheel that was detected. A second step in which the brake control device performs control to prevent the first wheel from sliding during braking by reducing the braking force applied to the first vehicle or first bogie or first axle or first wheel where slippage has occurred, based solely on the slippage information. Includes, In the second step, the brake control device distributes and increases the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where wheel slippage has occurred, to the braking force applied to the second vehicle, second bogie, second axle, or second wheel, where wheel slippage has not been detected, thereby ensuring the necessary braking force for the train. A brake control method characterized by the following.

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