Vehicle-mounted charging system, line charging system, track vehicle and charging method thereof

Abstract

A vehicle-mounted charging system, a line charging system, a rail vehicle and a charging method thereof, the vehicle-mounted charging system comprising a signal subsystem, a charging subsystem and a communication subsystem, wherein: the signal subsystem and / or the charging subsystem sends a charging request to the line charging system via the communication subsystem; after the line charging system receives the charging request, the charging subsystem receives a handshake message from the line charging system via the communication subsystem, and enters a charging process after handshake with the line charging system is completed until charging is completed; wherein the communication subsystem together with a communication module of the line charging system provides a long-term evolution channel of an unlicensed frequency spectrum. The vehicle-mounted charging system, the line charging system, the rail vehicle and the charging method thereof according to the embodiment of the application realize vehicle-ground communication based on an LTE-U network channel to charge the vehicle, which can avoid interference and is not affected by communication congestion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle charging, in particular to a vehicle-mounted charging system, a line charging system, a railway vehicle and a charging method thereof. BACKGROUND

[0002] At present, the whole vehicle controller of an electric railway vehicle uses WIFI wireless routing to exchange charging data with offline WIFI. Since the WIFI frequency band is easily interfered by signals of other wireless devices such as mobile phones and computers in the social environment, wireless communication congestion delay or even communication interruption will inevitably occur, resulting in charging failure. SUMMARY

[0003] The present application is proposed to solve the above problems. According to one aspect of the present application, a vehicle-mounted charging system is provided, comprising a signal subsystem, a charging subsystem and a communication subsystem, wherein: the signal subsystem and / or the charging subsystem sends a charging request to a line charging system via the communication subsystem; after the line charging system receives the charging request, the charging subsystem receives a handshake message from the line charging system via the communication subsystem, and enters a charging process after handshake with the line charging system is completed until charging is completed; wherein the communication subsystem together with a communication module of the line charging system provides a long-term evolution channel of unlicensed spectrum.

[0004] In one embodiment of the present application, the communication subsystem comprises a vehicle-mounted passenger information module, a communication switch and a terminal access unit, and the charging request comprises a first charging request and a second charging request, wherein: the signal subsystem sends the first charging request to the line charging system via the terminal access unit and performs charging preparation work, and the first charging request comprises vehicle information; the charging subsystem sends the second charging request to the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit and receives the handshake message from the line charging system, and the second charging request comprises information indicating that vehicle charging preparation work has been completed.

[0005] In one embodiment of the present application, the communication subsystem comprises a vehicle-mounted passenger information module, a communication switch and a terminal access unit, wherein: after the signal subsystem performs charging preparation work, the signal subsystem sends the charging request to the line charging system via the terminal access unit, and the charging request comprises vehicle information and information indicating that vehicle charging preparation work has been completed; and the charging subsystem receives the handshake message from the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit.

[0006] In an embodiment of the present application, the communication subsystem comprises a vehicle-mounted passenger information module, a communication switch and a terminal access unit, wherein: the signal subsystem sends the charging request to the charging subsystem after performing the charging preparation, the charging request comprising the vehicle information and information indicating that the charging preparation of the vehicle has been completed; and the charging subsystem forwards the charging request to the line charging system and receives the handshake message from the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit.

[0007] In an embodiment of the present application, the vehicle information comprises a vehicle marshalling number and vehicle active end information.

[0008] In an embodiment of the present application, the signal subsystem comprises a train automatic monitoring module and a vehicle-mounted controller module, wherein: the train automatic monitoring module is configured to send the charging request; and the vehicle-mounted controller module is configured to perform the charging preparation.

[0009] In an embodiment of the present application, the charging subsystem comprises a power battery, a battery management module, a charging electrode plate, a train control management module, a vehicle-mounted controller LAN-to-ethernet module and a vehicle-mounted contactor, wherein: the battery management module interacts with the signal subsystem via the train control management module; the train control management module sends the charging request to the line charging system via the battery management module, the vehicle-mounted controller LAN-to-ethernet module and the communication subsystem; the battery management module interacts with the line charging system via the vehicle-mounted controller LAN-to-ethernet module and the communication subsystem; and the vehicle-mounted contactor is configured to connect the power battery and the charging electrode plate.

[0010] In an embodiment of the present application, the charging process comprises: a charging monitoring module of the line charging system sending an instruction to a charging bow controller, so that the charging bow controller controls the charging bow to connect with the charging electrode plate of the vehicle to start charging; and after the battery is fully charged, the charging monitoring module sends an instruction to the charging bow controller, so that the charging bow controller controls the charging bow to disconnect with the charging electrode plate.

[0011] In an embodiment of the present application, the charging subsystem is further configured to: in the charging process, acquire bow state information of the charging bow in real time to determine whether to release the brake application; and the signal subsystem is further configured to: in the charging process, acquire the bow state information of the charging bow in real time, and determine whether to shunt in combination with whether the brake application is released.

[0012] According to another aspect of the present application, there is also provided a line charging system, comprising a charging monitoring module, a communication module and a charging component, wherein: the charging monitoring module receives a charging request from a vehicle via the communication module, and sends a handshake message to the vehicle via the communication module after receiving the charging request; the charging monitoring module is further configured to control the charging component to connect the vehicle to enter a charging process after the handshake with the vehicle is completed, until the charging is completed; wherein the communication module provides a long term evolution channel of unlicensed frequency spectrum together with a communication subsystem of the vehicle.

[0013] In an embodiment of the present application, the communication module comprises an access point, a core switch and a transmission switch, and the charging monitoring module receives the charging request from the vehicle and sends the handshake message to the vehicle via the transmission switch, the core switch and the access point.

[0014] In an embodiment of the present application, the charging component comprises a charging bow controller, a charging bow and a charger, and the charging process comprises: the charging monitoring module sends an instruction to the charging bow controller, so that the charging bow controller controls the charging bow to connect with a charging electrode plate of the vehicle to start charging the vehicle by the charger, and after the battery is fully charged, the charging monitoring module sends an instruction to the charging bow controller, so that the charging bow controller controls the charging bow to disconnect with the charging electrode plate.

[0015] In an embodiment of the present application, the charging monitoring module is further configured to send bow state information of the charging bow to the vehicle in real time during the charging process, so as to determine whether to release the brake application and whether to move the vehicle by the vehicle.

[0016] In an embodiment of the present application, the charging monitoring module is further configured to end the charging when a charging suspension message is received via the communication module, or an instruction of interrupting the charging by a user is received, or a charging related device enters a manual mode from an automatic mode, or a fault occurs in the charging related device, during the charging process.

[0017] According to still another aspect of the present application, there is also provided a vehicle charging system, comprising a charging subsystem, a communication subsystem and a radio frequency card, wherein: the radio frequency card is configured to be read by a reader of a line charging system; when the radio frequency card is read by the reader, the charging subsystem is configured to send a charging request to the line charging system via the communication subsystem; after the line charging system receives the charging request, the charging subsystem is configured to receive a handshake message from the line charging system via the communication subsystem, and to enter a charging process after a handshake with the line charging system is completed until a charging is finished; and wherein the communication subsystem together with a communication module of the line charging system provides a long term evolution channel of an unlicensed frequency spectrum.

[0018] In one embodiment of the present application, the vehicle charging system further comprises a signal subsystem configured to perform a charging preparation before the charging subsystem sends the charging request, wherein the charging request comprises vehicle information and information indicating that a charging preparation of the vehicle is completed.

[0019] According to still another aspect of the present application, there is also provided a line charging system, comprising a charging monitoring module, a communication module, a charging component and a reader, wherein: the reader is configured to read a radio frequency card of a vehicle to read a vehicle in-place state; when the reader reads the vehicle in-place state, the charging monitoring module is configured to receive a charging request from the vehicle via the communication module, and to send a handshake message to the vehicle via the communication module after receiving the charging request; the charging monitoring module is further configured to control the charging component to connect the vehicle after a handshake with the vehicle is completed, to enter a charging process until a charging is finished; and wherein the communication module together with a communication subsystem of the vehicle provides a long term evolution channel of an unlicensed frequency spectrum.

[0020] According to still another aspect of the present application, there is also provided a method for charging a rail vehicle, comprising: sending a charging request to a line charging system via a long term evolution channel of an unlicensed frequency spectrum; receiving a handshake message from the line charging system via the long term evolution channel of the unlicensed frequency spectrum after the line charging system receives the charging request; and entering a charging process after a handshake with the line charging system is completed until a charging is finished.

[0021] According to still another aspect of the present application, there is also provided a method for charging a rail vehicle, comprising: receiving a charging request from a vehicle via a long term evolution channel of an unlicensed frequency spectrum; sending a handshake message to the vehicle via the long term evolution channel of the unlicensed frequency spectrum after receiving the charging request; and entering a charging process after a handshake with the vehicle is completed until a charging is finished.

[0022] According to still another aspect of the present application, there is provided a railway vehicle comprising the on-board charging system as described above.

[0023] The on-board charging system, the line charging system, the railway vehicle and the charging method thereof according to the embodiments of the present application can realize the communication between the vehicle and the ground based on the LTE-U network channel to charge the vehicle, so that the interference can be avoided and the communication congestion can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures. The accompanying drawings are intended to provide a further understanding of the embodiments of the present application and are incorporated and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and are not intended to limit the present application. In the drawings, like reference numerals refer to like parts throughout the various views.

[0025] Figure 1 A schematic structural block diagram of an on-board charging system according to one embodiment of the present application is shown.

[0026] Figure 2 A schematic structural block diagram of a line charging system according to one embodiment of the present application is shown.

[0027] Figure 3 A schematic diagram of the position distribution of a vehicle charging system according to one embodiment of the present application is shown.

[0028] Figure 4 A schematic diagram of the communication path of a vehicle charging system according to one embodiment of the present application is shown.

[0029] Figure 5 A schematic structural block diagram of an on-board charging system according to another embodiment of the present application is shown.

[0030] Figure 6 A schematic structural block diagram of a line charging system according to another embodiment of the present application is shown.

[0031] Figure 7 A schematic flow chart of a charging method of a railway vehicle according to one embodiment of the present application is shown.

[0032] Figure 8 A schematic flow chart of a charging method of a railway vehicle according to another embodiment of the present application is shown. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application more obvious, the following will describe the example embodiments according to the present application in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the present application.

[0034] First, referring to Figure 1 The vehicle charging system according to an embodiment of the present application is described. Figure 1 The schematic structural block diagram of the vehicle charging system 100 according to an embodiment of the present application is shown. As Figure 1 shown, the vehicle charging system 100 includes a signal subsystem 110, a charging subsystem 120 and a communication subsystem 130. Among them, the signal subsystem 110 and / or the charging subsystem 120 send a charging request to the line charging system via the communication subsystem 130; after the line charging system receives the charging request, the charging subsystem 120 receives a handshake message from the line charging system via the communication subsystem 130, and after the handshake with the line charging system is completed, it enters the charging process until the charging is completed; wherein the communication subsystem 130 together with the communication module of the line charging system provides a long term evolution channel in unlicensed spectrum.

[0035] In the embodiments of the present application, the communication subsystem 130 of the vehicle charging system 100 and the communication module of the line charging system jointly provide a long term evolution (LTE-U) channel in unlicensed spectrum, so that the vehicle realizes the vehicle-to-ground communication based on the LTE-U network channel to charge the vehicle, without using the vehicle-mounted WIFI and the ground WIFI to establish a point-to-point wireless communication. Since the LTE-U network channel has no backoff mechanism, it can avoid interference and is not affected by WIFI communication congestion. In the complex network environment of the line, the expected function can also be realized. It can also make full use of the existing LTE-U network resources, effectively avoid the risk factors caused by the failure of WIFI devices itself, reduce the construction and maintenance operation amount, and be beneficial to cost control. In addition, compared with the vehicle-to-ground WIFI communication, the transmission network based on the LTE-U channel reduces one ground WIFI device and ground CAN to Ethernet device (i.e. no WIFI device and CAN to Ethernet device on the side of the line charging system).

[0036] In an embodiment of the present application, the communication subsystem 130 can include a passenger information system (PIS), a communication switch and a terminal access unit (TAU), and the charging request can include a first charging request and a second charging request, wherein: the signal subsystem 110 sends the first charging request to the line charging system via the TAU and performs charging preparation, and the first charging request includes vehicle information; the charging subsystem 120 sends the second charging request to the line charging system via the PIS, the communication switch and the TAU, and receives a handshake message from the line charging system, and the second charging request includes information indicating that the vehicle charging preparation has been completed. In this embodiment, the signal subsystem 110 can be used to realize automatic driving, so that the charging request can be automatically sent without human intervention.

[0037] In an embodiment of the present application, the signal subsystem 110 can include an automatic train supervision (ATS) and a vehicle on-board controller (VOBC). The VOBC can include an automatic train operation (ATO) and an automatic train protection (ATP), wherein the ATO is used to complete positioning and speed measurement of the train, and to complete control instruction calculation for the train according to the positioning and speed measurement information, and to control the train to run in a notch or acceleration mode after obtaining the control instruction; and the ATP is mainly used for monitoring. In the above embodiment, the ATS can be used to send the first charging request to the line charging system via the TAU, and to send the first charging request to the VOBC. The first charging request can include vehicle information such as a vehicle marshalling number and vehicle active end information. The vehicle marshalling number indicates vehicle identification and the number of carriages included in the vehicle; and the vehicle active end information indicates whether the vehicle head enters the station first or the vehicle tail enters the station first. The vehicle marshalling number and the vehicle active end information are sent to the line charging system, so that the line charging system can perform corresponding charging preparation. The VOBC can perform charging preparation after receiving the first charging request, such as controlling the vehicle to stop stably and accurately, applying the brake, and powering on the vehicle CAN-to-Ethernet module in cooperation with the TCMS system.

[0038] In the embodiment of the present application, the charging subsystem 120 can include a power battery, a battery management module (BMS), a charging pole, a train control and management system (TCMS), a vehicle CAN-to-Ethernet module, and a vehicle contactor, wherein the BMS interacts with the signal subsystem 110 via the TCMS; the TCMS sends a charging request to the line charging system via the BMS, the vehicle CAN-to-Ethernet module, and the communication subsystem 130; the BMS interacts with the line charging system via the vehicle CAN-to-Ethernet module and the communication subsystem 130; and the vehicle contactor is used to connect the power battery and the charging pole. In the above embodiment, when the charging preparation of the vehicle is completed, the TCMS can send a second charging request via the PIS, the communication switch, the TAU, and the communication module of the line charging system (which will be described below and can include an interval access point, a core switch, and a transmission switch). The second charging request includes information indicating that the charging preparation of the vehicle has been completed.

[0039] Based on this, the line charging system receives the first charging request and the second charging request described above, and can send a charging message to the BMS of the vehicle via the LTE-U channel composed of the communication module of the line charging system and the communication subsystem 130 of the vehicle charging system 100. After handshaking with the BMS, the charging process is entered, and the process is continued until the charging is completed. The charging process can include: the charging monitoring module of the line charging system sends an instruction to the charging pantograph controller, so that the charging pantograph controller controls the charging pantograph to connect with the charging pole of the vehicle (automatic pantograph lowering) to start charging; and after the battery is fully charged, the charging monitoring module sends an instruction to the charging pantograph controller, so that the charging pantograph controller controls the charging pantograph to disconnect from the charging pole (automatic pantograph raising).

[0040] In the embodiment of the present application, the charging subsystem 120 can also be used to: in the charging process, real-time acquisition of the pantograph state information of the charging pantograph (such as pantograph raising in place, pantograph lowering in place, pantograph raising in process, pantograph lowering in process, pantograph fault signal, etc.) to determine whether to release the brake application. The pantograph state information can be sent by the line charging system to the TCMS in real time, so as to be judged by the TCMS whether the brake application can be released.

[0041] In the embodiment of the present application, the signal subsystem 110 can also be used to: in the charging process, real-time acquisition of the pantograph state information of the charging pantograph (such as pantograph raising in place, pantograph lowering in place, pantograph raising in process, pantograph lowering in process, pantograph fault signal, etc.) to determine whether to release the brake application. The pantograph state information can be acquired by the signal subsystem 110, and when the signal subsystem 110 acquires the pantograph raising in place signal and in combination with the information that the brake application of the TCMS has been released, the vehicle can be moved. Thus, the entire charging process is completed.

[0042] In the above embodiment, the signal subsystem 110 and the charging subsystem 120 respectively send the first charging request and the second charging request. In other embodiments, other situations may also occur.

[0043] In another embodiment of this application, after performing charging preparation, the signal subsystem 110 sends a charging request to the line charging system via the TAU. The charging request includes vehicle information and information indicating that the vehicle charging preparation is complete. The charging subsystem 120 receives a handshake message from the line charging system via the PIS, communication switch, and TAU. In this embodiment, the charging request is sent only by the signal subsystem 110 to the line charging system, and the line charging system does not need to wait for the charging subsystem 120 to send a charging request signal, provided that the signal subsystem 110 has already received the signal indicating that the vehicle charging preparation is complete.

[0044] In another embodiment of this application, after performing charging preparation work, the signal subsystem 110 sends a charging request to the charging subsystem 120. The charging request includes vehicle information and information indicating that the vehicle charging preparation work has been completed. The charging subsystem 120 forwards the charging request to the line charging system via the on-board passenger information module, the communication switch, and the terminal access unit, and receives a handshake message from the line charging system. In this embodiment, the charging request is only sent from the signal subsystem 110 to the charging subsystem 120, and the charging subsystem 120 forwards the charging request to the line charging system, provided that the charging request forwarded by the charging subsystem 120 includes vehicle information and information indicating that the vehicle charging preparation work has been completed.

[0045] The above description exemplarily illustrates an on-board charging system 100 according to an embodiment of this application. The description of this system primarily focuses on the vehicle's charging process from the vehicle's perspective. Based on the above description, the on-board charging system 100 according to this application embodiment utilizes an LTE-U network channel to achieve vehicle-to-ground communication for vehicle charging, thus avoiding interference and being unaffected by communication congestion.

[0046] The following is combined with Figure 2 This application describes a line charging system according to one embodiment. The description of this system primarily focuses on the vehicle charging process from the perspective of the charging station. In other words, this line charging system works in conjunction with the previously described on-board charging system to achieve automatic vehicle charging. Since many details of the vehicle charging process have already been described from the vehicle's perspective, this description mainly focuses on the main operations of the line charging system from the perspective of the charging station; many details of the vehicle charging process will not be described further.

[0047] Figure 2 A schematic structural block diagram of an online charging system 200 according to an embodiment of this application is shown.Figure 2 As shown, the online charging system 200 includes a charging monitoring module 210, a communication module 220 and a charging component 230. Among them, the charging monitoring module 210 receives a charging request from the vehicle via the communication module 220, and sends a handshake message to the vehicle via the communication module 220 after receiving the charging request; the charging monitoring module 210 is also used to control the charging component 230 to connect the vehicle after the handshake with the vehicle is completed, so as to enter the charging process until the charging is completed; wherein the communication module 220 provides an LTE-U channel together with the communication subsystem of the vehicle.

[0048] In the embodiment of the present application, the communication module 220 of the communication subsystem 200 provides an LTE-U channel together with the communication subsystem of the vehicle-mounted charging system, so that the vehicle realizes the vehicle-ground communication based on the LTE-U network channel to charge the vehicle, without using the vehicle-mounted WIFI and the ground WIFI to establish a point-to-point wireless communication. Since the LTE-U network channel has no backoff mechanism, it can avoid interference and is not affected by WIFI communication congestion. In the complex network environment of the online circuit, the expected function can also be realized. In addition, compared with the vehicle-ground point-to-point WIFI communication, the transmission network based on the LTE-U channel reduces one ground WIFI device and one ground CAN-to-Ethernet device (i.e. no WIFI device and CAN-to-Ethernet device is needed on the side of the communication subsystem 200).

[0049] In the embodiment of the present application, the communication module 220 includes an interval access point, a core switch and a transmission switch, and the charging monitoring module 210 receives a charging request from the vehicle and sends a handshake message to the vehicle via the transmission switch, the core switch and the interval access point (Access Point, referred to as AP).

[0050] In the embodiment of the present application, the charging component 230 includes a charging bow controller, a charging bow and a charger. Correspondingly, the charging process includes: the charging monitoring module 210 sends an instruction to the charging bow controller, so that the charging bow controller controls the charging bow to connect with the charging electrode plate of the vehicle, and the charging of the vehicle by the charger is started. After the battery is fully charged, the charging monitoring module 210 sends an instruction to the charging bow controller, so that the charging bow controller controls the charging bow to disconnect with the charging electrode plate.

[0051] In the embodiment of the present application, the charging monitoring module 210 can also be used to: in the charging process, the bow state information of the charging bow is sent to the vehicle in real time, so as to determine whether to release the brake application and whether to adjust the vehicle by the vehicle.

[0052] In the embodiment of the present application, the charging monitoring module 210 can also be configured to end the charging when, in the charging process, a charging termination message is received via the communication module 220, or an instruction to interrupt the charging is received from the user, or the charging related device is switched from the automatic mode to the manual mode, or the charging related device fails. When the charging is ended, the vehicle number is removed from the charging queue.

[0053] Based on the above description, the communication subsystem 200 according to the embodiment of the present application implements the vehicle-ground communication based on the LTE-U network channel to charge the vehicle, which can avoid the interference and is not affected by the communication congestion.

[0054] The vehicle-mounted charging system 100 and the line charging system 200 described above can constitute a vehicle automatic charging system, which can be combined with Figure 3 and Figure 4 The location distribution and the communication path of the vehicle automatic charging system are further understood in combination with the description above. In Figure 3 and Figure 4 In the embodiment, the signal system is similar to the signal subsystem described above, the charging monitoring system is similar to the charging monitoring module described above, and the vehicle charging system is similar to the charging subsystem described above (some components are not drawn in the schematic diagram due to the schematic diagram).

[0055] The vehicle-mounted charging system and the line charging system according to another embodiment of the present application are described below in combination with Figure 5 and Figure 6 The vehicle-mounted charging system and the line charging system according to another embodiment of the present application are described below in combination with

[0056] Figure 5 A schematic structural block diagram of a vehicle-mounted charging system 500 according to another embodiment of the present application is shown. As Figure 5 shown, the vehicle-mounted charging system 500 includes a radio frequency card 510, a charging subsystem 520, and a communication subsystem 530, wherein: the radio frequency card 510 is configured to be read by a reader of a line charging system; when the radio frequency card 510 is read by the reader, the charging subsystem 520 sends a charging request to the line charging system via the communication subsystem 530; after the charging request is received by the line charging system, the charging subsystem 520 receives a handshake message from the line charging system via the communication subsystem 530, and enters the charging process after the handshake with the line charging system is completed until the charging is ended; wherein the communication subsystem 530 provides an LTE-U channel in combination with a communication module of the line charging system.

[0057] In the embodiment of the present application, the on-board charging system 500 is generally similar to the on-board charging system 100 described above, both of which realize the communication between the vehicle and the ground based on the LTE-U network channel to charge the vehicle, which can avoid interference and is not affected by communication congestion. The difference is that the on-board charging system 500 is read by the read-write device of the line charging system through the radio frequency card 510, so that the line charging system recognizes the presence of the vehicle to be charged. Therefore, the line charging system does not need to wait for the charging request sent by the signal subsystem on the vehicle, but can actively initiate the charging request, and after the vehicle confirms, enter the charging process, or wait for the charging request sent by the charging subsystem 520. In this embodiment, the signal subsystem described above can not be used, so it can be used in situations where the signal subsystem is not available (for example, not in an automatic driving situation). Of course, the on-board charging system 500 can also include a signal subsystem to perform charging preparation work before the charging subsystem 520 sends a charging request, and the charging request includes vehicle information and information indicating that the vehicle charging preparation work has been completed.

[0058] Figure 6 A schematic structural block diagram of a line charging system 600 according to another embodiment of the present application is shown. As shown, the line charging system 600 includes a charging monitoring module 610, a communication module 620, a charging component 630, and a read-write device 640, wherein: Figure 6 the read-write device 640 is used to read the radio frequency card of the vehicle to read the vehicle in-place state; when the read-write device 640 reads the vehicle in-place state, the charging monitoring module 610 receives the charging request from the vehicle via the communication module 620, and after receiving the charging request, sends a handshake message to the vehicle via the communication module 620; the charging monitoring module 610 is also used to control the charging component 630 to connect the vehicle after the handshake with the vehicle is completed, to enter the charging process until the charging is completed; wherein the communication module 620 provides an LTE-U channel together with the communication subsystem of the vehicle.

[0059] In the embodiment of the present application, the line charging system 600 is generally similar to the line charging system 200 described above, both of which realize the communication between the vehicle and the ground based on the LTE-U network channel to charge the vehicle, which can avoid interference and is not affected by communication congestion. The difference is that the line charging system 600 recognizes the presence of the vehicle to be charged by reading the radio frequency card on the vehicle through the read-write device 640, so that the line charging system 600 does not need to wait for the charging request sent by the signal subsystem on the vehicle, but can actively initiate the charging request, and after the vehicle confirms, enter the charging process, or wait for the charging request sent by the charging subsystem of the vehicle. In this embodiment, it can be used in situations where the signal subsystem is not available (for example, not in an automatic driving situation).

[0060] Similar to what was described above, the on-board charging system 500 and the line charging system 600 can also constitute an automatic vehicle charging system.

[0061] The following is combined with Figure 7 and Figure 8 The descriptions of rail vehicle charging methods 700 and 800 provided according to another aspect of this application are provided. Methods 700 and 800 can be performed by the on-board charging system (100, 500) and the line charging system (200, 600) described above, respectively. Since the detailed process of vehicle charging has already been described from the perspectives of the on-board charging system and the line charging system, only the main operations are described here for the sake of brevity.

[0062] like Figure 7 As shown, the rail vehicle charging method 700 may include the following steps:

[0063] In step S710, a charging request is sent to the line charging system via the Long Term Evolution channel of the unlicensed spectrum.

[0064] In step S720, after the line charging system receives a charging request, it receives a handshake message from the line charging system via the Long Term Evolution channel of the unlicensed spectrum.

[0065] In step S730, after the handshake with the line charging system is completed, the charging process begins until charging is finished.

[0066] like Figure 8 As shown, the rail vehicle charging method 800 may include the following steps:

[0067] In step S810, a charging request is received from the vehicle via the Long Term Evolution channel of the unlicensed spectrum.

[0068] In step S820, after receiving a charging request, a handshake message is sent to the vehicle via the Long Term Evolution channel of the unlicensed spectrum.

[0069] In step S830, after the handshake with the vehicle is completed, the charging process begins until charging is finished.

[0070] Based on the above description, the rail vehicle charging methods 700 and 800 according to the embodiments of this application realize vehicle-to-ground communication based on the LTE-U network channel to charge the vehicle, which can avoid interference and is not affected by communication congestion.

[0071] According to another aspect of this application, a rail vehicle is also provided, which may include the on-board charging systems 100 and 500 described above. Those skilled in the art can understand the structure and operation of the on-board charging system of the vehicle according to the embodiments of this application in conjunction with the foregoing description; for the sake of brevity, further details are omitted here.

[0072] While example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the example embodiments are intended to be illustrative only and not limiting of the scope of the application. Many modifications and variations of the example embodiments described herein will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the application. Accordingly, such modifications and variations are intended to fall within the scope of the application as defined by the appended claims.

[0073] Those skilled in the art can realize the units and algorithm steps with the examples described in the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the particular applications and design constraints. Those skilled in the art can realize the described functions by designing a corresponding electrical circuit or in a combination of hardware and software modules with the use of common technical means. Such implementation does not mean that the scope of the application will be limited by the particular manner of implementation, and it should be understood that the application is intended to cover all such modifications and variations.

[0074] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is merely a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be omitted or not executed.

[0075] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order not to obscure the understanding of this specification.

[0076] Similarly, it is to be understood that the features of the present application have sometimes been grouped together in the description of example embodiments of the application for the purpose of brevity, in order to provide a clear understanding of the present application. However, this manner of disclosure should not be interpreted to mean that the application requires more features than are explicitly recited in each claim. Rather, inventive aspects lie in less than all features of any single disclosed embodiment. More specifically, aspects of the present application are directed to each individual feature or each combination of features. The following claims are hereby expressly incorporated into this detailed description of the specifically disclosed embodiments of the application, to the extent that it is not inconsistent with the general inventive concepts.

[0077] Those skilled in the art will appreciate that all features described herein (including all features and processes described in the accompanying claims, abstract and drawings) can be combined in any combination. Each feature disclosed in this specification (including any "means for" feature disclosed by an "apparatus comprising a means for" claim), in the claims, abstract and drawings can be replaced by alternative features that are both equivalent in terms of the functionality for which the features are described to perform. This applies no matter whether the alternative feature appears for the first time in the published prior art, or is in use in the prior art or even both.

[0078] Furthermore, those skilled in the art will appreciate that the features of the various embodiments described herein can be combined with each other, where compatible, in order to create embodiments that are different from the described embodiments within the scope of the present application. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0079] The various component embodiments of the present application can be implemented in hardware, or as software modules running in one or more processors, or in combinations thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functionality of some of the modules according to embodiments of the present application. The present application can also be implemented as a vehicle controller program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such a program implementing the present application can be stored on a computer readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, or provided on a carrier medium, or in any other form.

[0080] It is noted that the above examples have been described by way of example and not limitation, and that alternatives will become apparent to persons skilled in the art who have the benefit of this patent application. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude the presence of elements or steps not listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the claims, the word 'first','second', 'third', etc. does not imply any order. The terms 'first','second', 'third', etc. are to be interpreted as names.

[0081] The above merely provides specific implementation manners or specific implementation manners of the present application, and the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An on-board charging system, characterized by, The vehicle-mounted charging system comprises a signal subsystem, a charging subsystem and a communication subsystem, the communication subsystem comprises a vehicle-mounted passenger information module, a communication switch and a terminal access unit, wherein: The signal subsystem and the charging subsystem send a charging request to a line charging system via the communication subsystem, or the signal subsystem sends a charging request to the line charging system via the charging subsystem and the communication subsystem; After the line charging system receives the charging request, the charging subsystem receives a handshake message from the line charging system via the communication subsystem, and enters a charging process after handshake with the line charging system is completed until charging is completed; The communication subsystem together with a communication module of the line charging system provides a long-term evolution channel of unlicensed frequency spectrum; The charging request comprises a first charging request and a second charging request, the signal subsystem sends the first charging request to the line charging system via the terminal access unit and performs charging preparation work, the first charging request comprises vehicle information; the charging subsystem sends the second charging request to the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit and receives the handshake message from the line charging system, the second charging request comprises information indicating that vehicle charging preparation work has been completed; or, The signal subsystem sends the charging request to the charging subsystem after performing charging preparation work; the charging subsystem forwards the charging request to the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit and receives the handshake message from the line charging system, the charging request comprises vehicle information and information indicating that vehicle charging preparation work has been completed.

2. The on-board charging system according to claim 1, characterized in that, The vehicle information comprises a vehicle marshalling number and vehicle active end information.

3. The on-board charging system of claim 1, wherein The signal subsystem comprises a train automatic monitoring module and a vehicle-mounted controller module, the train automatic monitoring module is used to send the charging request, and the vehicle-mounted controller module is used to perform the charging preparation work.

4. The on-board charging system of claim 1, wherein The charging subsystem comprises a power battery, a battery management module, a charging electrode plate, a train control management module, a vehicle-mounted controller local area network to Ethernet module and a vehicle-mounted contactor, wherein: The battery management module interacts with the signal subsystem via the train control management module; The train control management module sends the charging request to the line charging system via the battery management module, the vehicle-mounted controller local area network to Ethernet module and the communication subsystem; The battery management module interacts with the line charging system via the vehicle-mounted controller local area network to Ethernet module and the communication subsystem; The vehicle-mounted contactor is used to connect the power battery and the charging electrode plate.

5. The on-board charging system of claim 1, wherein The charging process comprises: A charging monitoring module of the line charging system sends an instruction to a charging bow controller, so that the charging bow controller controls a charging bow to connect with a charging electrode plate of a vehicle to start charging; After the battery is fully charged, the charging monitoring module sends an instruction to the pantograph controller, so that the pantograph controller controls the pantograph to disconnect with the charging pole.

6. The on-board charging system of claim 5, wherein The charging subsystem is further configured to acquire, in real time, the pantograph state information of the pantograph in the charging process, to determine whether to release the brake application. The signal subsystem is further configured to acquire, in real time, the pantograph state information of the pantograph in the charging process, and determine whether to shunt in combination with whether to release the brake application.

7. A line charging system characterized by comprising: The line charging system comprises a charging monitoring module, a communication module and a charging component, wherein: The charging monitoring module receives a charging request from a vehicle via the communication module, and sends a handshake message to the vehicle via the communication module after receiving the charging request. The charging monitoring module is further configured to control the charging component to connect the vehicle after the handshake with the vehicle is completed, to enter a charging process until the charging is completed. The communication module provides a long term evolution channel of unlicensed frequency spectrum together with a communication subsystem of the vehicle. The vehicle further comprises a signal subsystem and a charging subsystem, and the communication subsystem comprises an on-board passenger information module, a communication switch and a terminal access unit. The charging request comprises a first charging request and a second charging request, the signal subsystem sends the first charging request to the line charging system via the terminal access unit and performs charging preparation, and the first charging request comprises vehicle information; or the charging subsystem sends the second charging request to the line charging system via the on-board passenger information module, the communication switch and the terminal access unit, and receives the handshake message from the line charging system, and the second charging request comprises information indicating that the vehicle charging preparation is completed. The signal subsystem sends the charging request to the charging subsystem after performing the charging preparation, and the charging subsystem forwards the charging request to the line charging system via the on-board passenger information module, the communication switch and the terminal access unit, and receives the handshake message from the line charging system, and the charging request comprises vehicle information and information indicating that the vehicle charging preparation is completed.

8. The line charging system of claim 7, wherein, The communication module comprises an inter-zone access point, a core switch and a transmission switch, and the charging monitoring module receives the charging request from the vehicle and sends the handshake message to the vehicle via the transmission switch, the core switch and the inter-zone access point.

9. The line charging system of claim 7, wherein, The charging component comprises a pantograph controller, a pantograph and a charger, and the charging process comprises: The charging monitoring module sends an instruction to the pantograph controller, so that the pantograph controller controls the pantograph to connect with the charging pole of the vehicle to start charging the vehicle by the charger, and after the battery is fully charged, the charging monitoring module sends an instruction to the pantograph controller, so that the pantograph controller controls the pantograph to disconnect with the charging pole.

10. The line charging system of claim 9, wherein, The charging monitoring module is further configured to: In the charging process, the pantograph state information of the charging bow is sent to the vehicle in real time to determine whether to release the brake application and whether to move the vehicle by the vehicle.

11. The line charging system of claim 10, wherein, The charging monitoring module is also used for: In the charging process, when the charging is interrupted by receiving a message via the communication module, or receiving a user instruction to interrupt the charging, or the charging related equipment enters the manual mode from the automatic mode, or the charging related equipment fails, the charging is ended.

12. An on-board charging system, characterized by The on-board charging system comprises a charging subsystem, a communication subsystem and a radio frequency card, wherein: The radio frequency card is used for being read by a reader of the line charging system; When the radio frequency card is read by the reader, the charging subsystem sends a charging request to the line charging system via the communication subsystem; After the line charging system receives the charging request, the charging subsystem receives a handshake message from the line charging system via the communication subsystem, and enters the charging process after the handshake with the line charging system is completed until the charging is ended; The communication subsystem provides a long term evolution channel of unlicensed spectrum together with the communication module of the line charging system; The communication subsystem comprises an on-board passenger information module, a communication switch and a terminal access unit, the charging subsystem sends the charging request to the line charging system and receives the handshake message from the line charging system via the on-board passenger information module, the communication switch and the terminal access unit, the charging request comprises vehicle information and information indicating that the vehicle charging preparation work is completed, and the on-board charging system further comprises a signal subsystem, the signal subsystem is used for performing the charging preparation work before the charging subsystem sends the charging request, and the charging request comprises vehicle information and information indicating that the vehicle charging preparation work is completed.

13. A line charging system characterized by comprising: The line charging system comprises a charging monitoring module, a communication module, a charging component and a reader, wherein: The reader is used for reading the radio frequency card of the vehicle to read the vehicle in-place state; When the reader reads the vehicle in-place state, the charging monitoring module receives a charging request from the vehicle via the communication module, and sends a handshake message to the vehicle via the communication module after receiving the charging request; The charging monitoring module is also used for controlling the charging component to connect the vehicle after the handshake with the vehicle is completed to enter the charging process until the charging is ended; The communication module provides a long term evolution channel of unlicensed spectrum together with the communication subsystem of the vehicle. The communication subsystem includes a vehicle-mounted passenger information module, a communication switch and a terminal access unit, the vehicle further includes a signal subsystem and a charging subsystem, the charging subsystem sends the charging request to the line charging system and receives the handshake message from the line charging system via the vehicle-mounted passenger information module, the communication switch and the terminal access unit, the charging request includes vehicle information and information indicating that the vehicle charging preparation work has been completed, the signal subsystem is used to perform charging preparation work before the charging subsystem sends the charging request, and the charging request includes vehicle information and information indicating that the vehicle charging preparation work has been completed.

14. A method of charging a rail vehicle, performed by the on-board charging system of any one of claims 1-6 or the on-board charging system of claim 12, characterized by, The method comprises: sending a charging request to a line charging system via a long-term evolution channel of unlicensed spectrum, the charging request including vehicle information and information indicating that the vehicle charging preparation work has been completed; after the line charging system receives the charging request, receiving a handshake message from the line charging system via the long-term evolution channel of unlicensed spectrum; entering a charging process after the handshake with the line charging system is completed until the charging is completed.

15. A method of charging a rail vehicle, performed by the line charging system of any one of claims 7-11 or the line charging system of claim 13, characterized by, The method comprises: receiving a charging request from a vehicle via a long-term evolution channel of unlicensed spectrum, the charging request including vehicle information and information indicating that the vehicle charging preparation work has been completed; after receiving the charging request, sending a handshake message to the vehicle via the long-term evolution channel of unlicensed spectrum; entering a charging process after the handshake with the vehicle is completed until the charging is completed.

16. A rail vehicle, characterized by The vehicle includes the vehicle-mounted charging system of any one of claims 1-6, 12.

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