Pantograph ascending failure positioning method, controller and train

Abstract

The application discloses a pantograph lifting failure positioning method, a controller and a train, and relates to the field of fault detection. In the process of sending a pantograph lifting instruction to a pantograph lifting relay through a pantograph lifting train line to lift a driver-selected pantograph or an automatically-selected pantograph, the pantograph lifting train line, the pantograph lifting relay and a pantograph lifting holding relay are sequentially powered in a first preset time of sending the pantograph lifting instruction. The fault position is determined according to whether the three are powered. In a second preset time of sending the instruction, the pantograph should be lifted to the position and the traction system should have a network voltage, and only then is the pantograph lifting normal. According to the connection relationship, the fault range is sequentially narrowed, and finally the position of the fault is determined, so that the maintenance of the operation and maintenance personnel is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fault detection, in particular to a pantograph ascending failure positioning method, a controller and a train. BACKGROUND

[0002] The pantograph of the urban rail full-automatic train is controlled to ascend and descend by the network system in the full-automatic operation mode, and is controlled to ascend and descend by the driver in the non-full-automatic mode. The urban rail train is divided into two units, and each unit is configured with a pantograph to supply power to the traction system in the unit. When the driver or the network system issues an ascending pantograph instruction, the traction system cannot receive the pantograph network voltage due to various reasons, cannot work normally, and affects the vehicle operation. Since the entire ascending pantograph circuit of the vehicle is relatively complex, the maintenance personnel need to check one by one, and the requirement for the personnel is relatively high. The fault processing efficiency is low, and the intelligent level is insufficient. SUMMARY

[0003] The purpose of the present application is to provide a pantograph ascending failure positioning method, a controller and a train, which sequentially narrow the fault range according to the connection relationship, and finally determine the position of the fault, so that the maintenance of the operation and maintenance personnel is more convenient.

[0004] To solve the above technical problems, the present application provides a pantograph ascending failure positioning method applied to a controller of a train, wherein the train comprises an ascending pantograph relay, an ascending pantograph electromagnetic valve, an ascending pantograph holding relay and a pantograph, the ascending pantograph relay is connected with the ascending pantograph holding relay and the pantograph respectively, the ascending pantograph electromagnetic valve is connected with the pantograph, the ascending pantograph holding relay is also connected with the pantograph, the ascending pantograph relay is used to control the ascending pantograph electromagnetic valve, and then control the pantograph to ascend, and the ascending pantograph holding relay is used to keep the pantograph in the ascending state.

[0005] The pantograph ascending failure positioning method comprises the following steps.

[0006] An ascending pantograph instruction is sent to the ascending pantograph relay through an ascending train line so as to ascend the pantograph selected by the driver or the pantograph selected automatically, and timing is started.

[0007] It is judged whether the ascending pantograph holding relay loses power within a first preset time.

[0008] If the ascending pantograph holding relay loses power, it is judged whether the ascending pantograph relay loses power.

[0009] If the ascending pantograph relay loses power, it is determined whether the ascending train line is powered on, so as to determine the fault point position.

[0010] If the ascending pantograph holding relay is powered on, it is judged whether the pantograph ascending in place is detected at a second preset time.

[0011] If the pantograph is detected to be raised to position after the second preset time, and the pantograph corresponding traction system has pantograph voltage, it is determined that the pantograph is normally raised.

[0012] On the other hand, the train further comprises a pantograph raising button, a selection switch, a pantograph lowering button and a pantograph lowering relay, the pantograph raising button, the pantograph lowering button and the selection switch are connected with the controller;

[0013] The pantograph raising relay is sent a pantograph raising instruction through a pantograph raising train line so as to raise the pantograph selected by the driver, comprising:

[0014] The selection switch is determined to select the pantograph to be raised;

[0015] The pantograph raising relay is sent a pantograph raising instruction through a pantograph raising train line so as to raise the pantograph selected by the driver when the pantograph raising button is pressed;

[0016] The pantograph raising failure locating method of the pantograph further comprises:

[0017] The selection switch is determined to select the pantograph to be raised;

[0018] The pantograph lowering relay is sent a pantograph lowering instruction through a pantograph lowering train line so as to lower the pantograph selected by the driver when the pantograph lowering button is pressed.

[0019] On the other hand, the train further comprises a pantograph raising circuit diode and a pantograph lowering circuit diode, the anode of the pantograph raising circuit diode and the anode of the pantograph lowering circuit diode are connected with the selection switch, the cathode of the pantograph raising circuit diode is connected with the pantograph raising relay, and the cathode of the pantograph lowering circuit diode is connected with the pantograph lowering relay;

[0020] If the pantograph raising relay loses power, it is determined whether the pantograph raising train line is powered to determine the fault point position, comprising:

[0021] If the pantograph raising train line is powered, it is determined that the pantograph raising relay is faulty;

[0022] If the pantograph raising train line loses power, it is determined that the pantograph raising circuit diode is faulty.

[0023] On the other hand, it further comprises:

[0024] It is determined whether the pantograph lowering relay is powered;

[0025] If the pantograph lowering relay is powered, it is determined whether the pantograph lowering train line loses power;

[0026] If the pantograph lowering train line is powered, it is determined that the pantograph lowering button is effective or automatically outputs the pantograph lowering instruction;

[0027] If the train line is de-energized, it is determined that the lowering relay is faulty.

[0028] On the other hand, the train further comprises a raising enabling relay, which is energized when the lowering relay is de-energized.

[0029] After determining whether the raising holding relay is de-energized within a first preset time, the method further comprises:

[0030] Determining whether the raising enabling relay is de-energized.

[0031] If the raising enabling relay is de-energized, it is determined whether the running position relays of each vehicle unit are energized.

[0032] If the running position relays are energized, it is determined that the raising enabling relay is de-energized.

[0033] On the other hand, when the train comprises two vehicle units, the method further comprises:

[0034] After determining whether the running position relays of each vehicle unit are energized, the method further comprises:

[0035] If the running position relay of the first vehicle unit is de-energized, it is determined whether the train line of the first vehicle unit is energized.

[0036] If the train line of the first vehicle unit is energized, it is determined that the running position relay of the first vehicle unit is faulty.

[0037] If the train line of the first vehicle unit is de-energized, it is determined that the first vehicle unit is not in the running position.

[0038] If the running position relay of the second vehicle unit is de-energized, it is determined whether the train line of the second vehicle unit is energized.

[0039] If the train line of the second vehicle unit is energized, it is determined that the running position relay of the second vehicle unit is faulty.

[0040] If the train line of the second vehicle unit is de-energized, it is determined that the second vehicle unit is not in the running position.

[0041] On the other hand, after determining whether the raising holding relay is de-energized within a first preset time, the method further comprises:

[0042] If the raising enabling relay and the raising relay are both energized and the lowering relay is de-energized, it is determined that the raising holding relay is faulty.

[0043] On the other hand, the train further comprises pantograph pressure switches, which are all connected to the pantographs.

[0044] judging whether the pantograph is detected to be in the raised position at the second preset time, comprising:

[0045] judging whether the signal sent by the pantograph pressure switch is received at the second preset time;

[0046] if the signal is received, determining that the pantograph is in the raised position;

[0047] after judging whether the pantograph is detected to be in the raised position at the second preset time, further comprising:

[0048] if the signal sent by the pantograph pressure switch is not received, determining that the pantograph is in the raised position or the pantograph pressure switch is faulty.

[0049] In another aspect, the train further comprises a lowered position sensor connected with the pantograph.

[0050] after determining that the pantograph is in the raised position, further comprising:

[0051] judging whether the pantograph voltage of the corresponding traction system is greater than a preset voltage;

[0052] if the pantograph voltage is not greater than the preset voltage, judging whether the signal sent by the lowered position sensor is received;

[0053] if the signal sent by the lowered position sensor is received, determining that the pantograph pressure switch is faulty;

[0054] if the signal sent by the lowered position sensor is not received, determining that the power supply line is faulty.

[0055] To solve the above technical problems, the application further provides a controller, comprising:

[0056] a memory for storing a computer program;

[0057] a processor for executing the computer program to realize the steps of the pantograph raised position fault positioning method.

[0058] To solve the above technical problems, the application further provides a train comprising the above controller, the train further comprising a raised relay, a raised electromagnetic valve, a raised position maintaining relay and a pantograph, the raised relay being connected with the raised position maintaining relay and the pantograph respectively, the raised electromagnetic valve being connected with the pantograph, the raised position maintaining relay being further connected with the pantograph, the raised relay being used for controlling the raised electromagnetic valve and further controlling the pantograph to be raised, and the raised position maintaining relay being used for maintaining the pantograph in the raised state.

[0059] The application provides a pantograph lifting failure positioning method, a controller and a train, and relates to the field of failure detection. BRIEF DESCRIPTION OF DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the prior art and the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0061] Figure 1 A flowchart of a pantograph lifting failure positioning method provided by the present application is shown in the figure.

[0062] Figure 2 A flowchart of another pantograph lifting failure positioning method provided by the present application is shown in the figure.

[0063] Figure 3 A flowchart of another pantograph lifting failure positioning method provided by the present application is shown in the figure.

[0064] Figure 4 A structure schematic diagram of a lifting relay and a lowering relay control circuit provided by the present application is shown in the figure.

[0065] Figure 5 A structure schematic diagram of a lifting relay control circuit provided by the present application is shown in the figure.

[0066] Figure 6 A structure schematic diagram of a controller provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0067] The core of the present application is to provide a pantograph lifting failure positioning method, a controller and a train, which sequentially narrow down the failure range according to the connection relationship, finally determine the position of the failure, and make it more convenient for the operation and maintenance personnel to repair.

[0068] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall into the protective scope of the present application.

[0069] Figure 1 A flowchart of a pantograph lifting failure positioning method provided by the present application is applied to a controller of a train, the train comprising a pantograph lifting relay 1, a pantograph lifting electromagnetic valve 2, a pantograph lifting holding relay 3 and a pantograph. The pantograph lifting relay 1 is connected with the pantograph lifting holding relay 3 and the pantograph respectively. The pantograph lifting electromagnetic valve 2 is connected with the pantograph. The pantograph lifting holding relay 3 is also connected with the pantograph. The pantograph lifting relay 1 is used to control the pantograph lifting electromagnetic valve 2, thereby controlling the pantograph to lift. The pantograph lifting holding relay 3 is used to keep the pantograph in a lifted state.

[0070] The pantograph lifting failure positioning method comprises the following steps.

[0071] S11: Send a pantograph lifting instruction to the pantograph lifting relay 1 through a pantograph lifting train line so as to lift a pantograph selected by a driver or a pantograph selected automatically, and start timing.

[0072] The pantograph comprises two states of automatic control and driver control. In the state of automatic control, the controller will automatically send a pantograph lifting instruction through a network system. The pantograph lifting instruction is sent to the pantograph lifting relay 1 through a pantograph lifting train line. In the state of driver control, the pantograph to be lifted is selected by the driver, and then the controller sends a pantograph lifting instruction. After the pantograph lifting instruction is sent, the pantograph lifting relay 1 is powered on, thereby controlling the pantograph lifting electromagnetic valve 2 to act. The pantograph will lift at this time. In order to keep the pantograph in a lifted state, the pantograph lifting holding relay will form a self-locking to keep the pantograph in a lifted state.

[0073] The circuit structure of the pantograph lifting holding relay 3 forming the self-locking is not limited here.

[0074] S12: Determine whether the pantograph lifting holding relay 3 loses power within a first preset time. If yes, go to step S13. If no, go to step S15.

[0075] Within the first preset time after the pantograph lifting instruction is sent, the pantograph lifting train line, the pantograph lifting relay 1 and the pantograph lifting holding relay 3 are powered on in turn. If the pantograph lifting holding relay 3 is powered on, it means that the pantograph lifting train line and the pantograph lifting relay 1 are both powered on. If the pantograph lifting holding relay 3 loses power, it is necessary to determine one by one.

[0076] S13: judging whether the pantograph relay 1 is powered off; if yes, entering step S14;

[0077] S14: determining whether the pantograph train line is powered on to determine the fault point position;

[0078] If the pantograph relay 1 is powered off, it is necessary to continue to determine whether the pantograph train line is faulty, and whether each device is powered on in a way from far to near, so that the fault position can be determined more simply.

[0079] S15: judging whether the pantograph is detected to be in place at the second preset time; if yes, entering step S16;

[0080] S16: if the pantograph corresponding traction system has pantograph voltage, it is determined that the pantograph is normally raised.

[0081] Within the second preset time of sending the pantograph raising instruction, the pantograph should be raised to place, and electricity is delivered to the traction system, so that the traction system can detect the pantograph voltage. If the pantograph voltage is detected, it proves that the pantograph is normally raised.

[0082] The application provides a pantograph raising fault positioning method, a controller and a train, and relates to the field of fault detection. In the process of sending a pantograph raising instruction to a pantograph relay 1 through a pantograph train line to raise a pantograph selected by a driver or an automatically selected pantograph, the pantograph train line, the pantograph relay 1 and a pantograph holding relay 3 are sequentially powered on within a first preset time of sending the pantograph raising instruction, the fault position is determined according to whether the three are powered on, the pantograph should be raised to place within a second preset time of sending the instruction, and the traction system has network voltage, so as to be determined as normal pantograph raising. According to the connection relationship, the fault range is sequentially reduced, and finally the fault position is determined, so that the maintenance of the operation and maintenance personnel is more convenient.

[0083] On the basis of the above embodiment:

[0084] Figure 2 A flowchart of another pantograph raising fault positioning method provided by the application; Figure 3 A flowchart of another pantograph raising fault positioning method provided by the application; Figure 4 A structure schematic diagram of a pantograph raising relay and a pantograph lowering relay control circuit provided by the application;

[0085] In some embodiments, the train further comprises a pantograph raising button 4, a selection switch 5, a pantograph lowering button 6 and a pantograph lowering relay 7, and the pantograph raising button 4, the pantograph lowering button 6 and the selection switch 5 are connected with the controller.

[0086] The pantograph raising instruction is sent to the pantograph relay 1 through the pantograph train line to raise the pantograph selected by the driver, comprising:

[0087] determining the pantograph selected by the selection switch 5 to be raised;

[0088] sending a pantograph raising command to the pantograph raising relay 1 through the pantograph raising train line when the pantograph raising button 4 is pressed so as to raise the pantograph selected by the driver;

[0089] The pantograph raising fault locating method of the pantograph further comprises:

[0090] determining the pantograph selected by the selection switch 5 to be raised;

[0091] sending a pantograph lowering command to the pantograph lowering relay 7 through the pantograph lowering train line when the pantograph lowering button 6 is pressed so as to lower the pantograph selected by the driver.

[0092] The train further comprises the pantograph raising button 4, the pantograph lowering button 6 and the selection switch 5, in the driver control mode, the driver manually presses the pantograph raising button 4 or the pantograph lowering button 6, and the selection switch 5 is pressed to select one pantograph to be raised or both pantographs to be raised according to the actual needs. Then the pantograph raising command or the pantograph lowering command is sent to the pantograph raising relay 1 or the pantograph lowering relay 7 through the train line. In the automatic control mode, the controller sends the pantograph raising command to the pantograph raising train line or the pantograph lowering command to the pantograph lowering train line.

[0093] It is also necessary to point out that the driver obtains electricity through the coil of the cab occupancy relay, and then the cab occupancy relay contact is closed. When the network outputs the pantograph raising command or the pantograph lowering command, the coil of the full-automatic mode relay obtains electricity, and then the full-automatic mode relay contact is closed.

[0094] In some embodiments, the train further comprises the pantograph raising circuit diode 8 and the pantograph lowering circuit diode 9, the anode of the pantograph raising circuit diode 8 and the anode of the pantograph lowering circuit diode 9 are connected with the selection switch 5, the cathode of the pantograph raising circuit diode 8 is connected with the pantograph raising relay 1, and the cathode of the pantograph lowering circuit diode 9 is connected with the pantograph lowering relay 7.

[0095] If the pantograph raising relay 1 loses electricity, it is determined whether the pantograph raising train line obtains electricity to determine the fault point position, comprising:

[0096] If the pantograph raising train line obtains electricity, it is determined that the pantograph raising relay 1 is faulty.

[0097] If the pantograph raising train line loses electricity, it is determined that the pantograph raising circuit diode 8 is faulty.

[0098] In addition, the pantograph raising circuit diode 8 and the pantograph lowering circuit diode 9 are also provided, which are arranged in the circuit to achieve the protection effect and prevent the signal from flowing back from the pantograph.

[0099] So after setting the bow circuit diode 8, if the bow relay 1 loses power, then the fault point may appear in the train line and the bow diode, if the train line is powered, then the bow diode must not have a fault, so it may be the bow relay 1 itself that has a fault causing the bow relay 1 to lose power. If the bow train line also loses power, then the problem is in the bow circuit diode 8.

[0100] In some embodiments, further comprising:

[0101] determining whether the lowering bow relay 7 is powered;

[0102] if the lowering bow relay 7 is powered, determining whether the lowering bow train line loses power;

[0103] if the lowering bow train line is powered, determining that the lowering bow button 6 is valid or automatically outputting a lowering bow command;

[0104] if the lowering bow train line loses power, determining that the lowering bow relay 7 has a fault.

[0105] After setting the lowering bow circuit diode 9, if the lowering bow relay 7 loses power, then the fault point may appear in the train line and the lowering bow diode, if the train line is powered, then the lowering bow diode must not have a fault, so it may be the lowering bow relay 7 itself that has a fault causing the lowering bow relay 7 to lose power. If the lowering bow train line also loses power, then the problem is in the lowering bow circuit diode 9.

[0106] Figure 5 a structure diagram of a bow holding relay control circuit provided by the present application;

[0107] In some embodiments, the train further comprises a bow enabling relay 10, which is powered when the lowering bow relay 7 loses power;

[0108] After determining whether the bow holding relay 3 loses power within the first preset time, further comprising:

[0109] determining whether the bow enabling relay 10 loses power;

[0110] if the bow enabling relay 10 loses power, determining whether the operation position relays of each vehicle unit are powered;

[0111] if each operation position relay is powered, determining that the bow enabling relay 10 loses power.

[0112] After the pantograph enabling relay 10 is powered, the coil of the pantograph relay 1 is powered, the contact of the pantograph relay 1 is closed, at this time the coil 32 of the pantograph holding relay 3 is powered, and the contact 31 of the pantograph holding relay 3 is closed, the pantograph holding relay 3 is self-locked, and the pantograph solenoid valve 2 is continuously powered, and the pantograph is always in the raised state to supply power to the traction system of the vehicle unit.

[0113] In addition, the pantograph enabling relay 10 also needs to close the contact when the pantograph condition is met, and the pantograph condition includes that the operation position relays of each vehicle unit are powered.

[0114] If the operation position relays of the vehicle are all powered, the pantograph enabling relay 10 is powered due to a fault of the pantograph enabling relay 10 itself.

[0115] In some embodiments, when the train includes two vehicle units, the operation position relays of the two vehicle units are powered.

[0116] After determining whether the operation position relays of each vehicle unit are powered, the method further includes:

[0117] If the operation position relay of the first vehicle unit is powered off, it is determined whether the train line of the first vehicle unit is powered.

[0118] If the train line of the first vehicle unit is powered, it is determined that the operation position relay of the first vehicle unit is faulty.

[0119] If the train line of the first vehicle unit is powered off, it is determined that the first vehicle unit has not reached the operation position.

[0120] If the operation position relay of the second vehicle unit is powered off, it is determined whether the train line of the second vehicle unit is powered.

[0121] If the train line of the second vehicle unit is powered, it is determined that the operation position relay of the second vehicle unit is faulty.

[0122] If the train line of the second vehicle unit is powered off, it is determined that the second vehicle unit has not reached the operation position.

[0123] When the vehicle includes two vehicle units, if the operation position relay of the first vehicle unit is powered off and the train line of the first vehicle unit is powered, it is determined that the operation position relay of the first vehicle unit is faulty and is powered off by itself; if the operation position relay of the first vehicle unit is powered off and the train line of the first vehicle unit is powered off, it is determined that the first vehicle unit has not reached the operation position.

[0124] Second vehicle unit, if the second vehicle unit operating position relay loses power and the second vehicle unit train line is powered, then the second vehicle unit operating position relay loses power due to its own failure; the second vehicle unit operating position relay loses power and the second vehicle unit train line loses power, then the second vehicle unit is not in the operating position.

[0125] In some embodiments, after determining whether the bow-keeping relay 3 loses power within the first preset time, the method further comprises:

[0126] If the bow-keeping relay 3 loses power due to its own failure, the bow-keeping relay 3 loses power, and the bow-keeping relay 3 loses power, then the second vehicle unit is not in the operating position.

[0127] If the bow-keeping relay 3 loses power due to its own failure, the bow-keeping relay 3 loses power, and the bow-keeping relay 3 loses power, then the second vehicle unit is not in the operating position.

[0128] It should be noted that it is determined in advance whether the current is driver control or controller automatic control, and the above is the judgment logic for driver control.

[0129] In automatic mode, when the bow-keeping relay, the bow relay, and the bow train line all lose power, it may be that the full-automatic mode relay is faulty. When the bow-keeping relay loses power, the bow-down relay and the bow-down train line are powered, the network automatically outputs the bow-down command.

[0130] The remaining judgment logic is consistent with the driver control logic.

[0131] In some embodiments, the train further comprises a pantograph pressure switch 11, and the pantograph pressure switch 11 is connected to the pantograph.

[0132] Determining whether the pantograph is raised to the position within a second preset time comprises:

[0133] Determining whether a signal sent by the pantograph pressure switch 11 is received within the second preset time.

[0134] If the signal is received, it is determined that the pantograph is raised to the position.

[0135] After determining whether the pantograph is raised to the position within the second preset time, the method further comprises:

[0136] If the signal sent by the pantograph pressure switch 11 is not received, it is determined that the pantograph pressure is insufficient or the pantograph pressure switch 11 is faulty.

[0137] Further, the pantograph pressure switch 11 is also included, which is connected with the pressure switch and can collect whether the pantograph is raised to the position, and specifically, if the pressure reaches a certain value, a signal will be sent to the controller to prove that the pantograph is raised to the position. When the pantograph reaches the preset position, if the signal sent by the pantograph pressure switch 11 is not received, it is indicated that the pantograph is not raised to the preset position, resulting in insufficient pressure, or the pantograph pressure switch 11 is faulty.

[0138] In some embodiments, the train further includes a pantograph lowering to position sensor 12 connected with the pantograph;

[0139] After determining that the pantograph is raised to the position, the following steps are further included:

[0140] It is determined whether the pantograph corresponding to the traction system is greater than a preset voltage;

[0141] If the pantograph corresponding to the traction system is not greater than the preset voltage, it is determined whether the signal sent by the pantograph lowering to position sensor 12 is received;

[0142] If the signal sent by the pantograph lowering to position sensor 12 is received, it is determined that the pantograph pressure switch 11 is faulty;

[0143] If the signal sent by the pantograph lowering to position sensor 12 is not received, it is determined that the power supply line is faulty.

[0144] If the pantograph corresponding to the traction system is not greater than the preset voltage, it is necessary to determine whether the pantograph raising signal is correct, at this time, it is determined whether the signal sent by the pantograph lowering to position sensor 12 is received, if the signal sent by the pantograph lowering to position sensor 12 is received, it is indicated that the pantograph is not raised to the position, and the pantograph pressure switch 11 is faulty. If the signal sent by the pantograph lowering to position sensor 12 is not received, it is indicated that the current signal is not wrong, and only due to the power supply line fault, the pantograph fails to supply power to the traction system successfully.

[0145] Figure 6 A structural schematic diagram of a controller provided by the present application is provided, and the controller includes:

[0146] The memory 61 is used for storing a computer program;

[0147] The processor 62 is used for executing the computer program to realize the steps of the pantograph raising fault positioning method.

[0148] The controller provided by the present application is introduced as above, which will not be repeated here.

[0149] The application further provides a train comprising the controller, the train further comprising a pantograph raising relay 1, a pantograph raising electromagnetic valve 2, a pantograph raising maintaining relay 3 and a pantograph, the pantograph raising relay 1 being connected with the pantograph raising maintaining relay 3 and the pantograph respectively, the pantograph raising electromagnetic valve 2 being connected with the pantograph, the pantograph raising maintaining relay 3 being further connected with the pantograph, the pantograph raising relay 1 being used for controlling the pantograph raising electromagnetic valve 2, and then controlling the pantograph to be raised, the pantograph raising maintaining relay 3 being used for maintaining the pantograph in a raised state.

[0150] The train provided by the application is described above, and will not be described here again.

[0151] It should be further understood that the terms such as first and second, etc., are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In addition, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0152] The skilled person can further realize that the units and algorithm steps of the examples described in conjunction with the disclosed embodiments can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been described in the above description in general terms. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0153] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for locating a pantograph raising fault, characterized in that: A controller for a train, the train comprising a pantograph raising relay, a pantograph raising solenoid valve, a pantograph raising holding relay, and a pantograph, the pantograph raising relay being connected to the pantograph raising holding relay and the pantograph, respectively, the pantograph raising solenoid valve being connected to the pantograph, the pantograph raising holding relay being also connected to the pantograph, the pantograph raising relay being used to control the pantograph raising solenoid valve, thereby controlling the raising of the pantograph, and the pantograph raising holding relay being used to maintain the pantograph in a raised state; The pantograph raising fault locating method includes: sending a pantograph raising command to the pantograph raising relay via the pantograph raising train line to raise the pantograph selected by the driver or the automatically selected pantograph, and starting timing; Determine whether the bow raising and holding relay loses power within a first preset time; If the bow-raising holding relay loses power, determining whether the bow-raising relay loses power; If the pantograph relay loses power, determine whether the pantograph train line is powered to determine the fault location; If the pantograph raising holding relay is energized, determining whether the pantograph is detected to be raised in place at a second preset time; If it is detected that the pantograph is raised in place after the second preset time, and the traction system corresponding to the pantograph has a pantograph-network voltage, it is determined that the pantograph is raised normally; The train further includes a pantograph pressure switch, and the pantograph pressure switches are all connected to the pantograph; Determining whether the pantograph is detected to be in place at the second preset time includes: determining whether a signal sent by the pantograph pressure switch is received at a second preset time; If received, it is determined that the pantograph is in place; After determining whether the pantograph is detected to be in place at the second preset time, the method further includes: If the signal sent by the pantograph pressure switch is not received, it is determined that the pantograph pressure is insufficient or the pantograph pressure switch is faulty.

2. The pantograph raising fault location method according to claim 1, characterized in that: The train further includes a pantograph raising button, a selection switch, a pantograph lowering button, and a pantograph lowering relay, wherein the pantograph raising button, the pantograph lowering button, and the selection switch are all connected to the controller; Sending a pantograph raising command to the pantograph raising relay via the pantograph raising train line to raise the pantograph selected by the driver includes: Determining that the selector switch selects the raised pantograph; When the pantograph raising button is pressed, a pantograph raising instruction is sent to the pantograph raising relay via the pantograph raising train line so as to raise the pantograph selected by the driver; The pantograph raising fault locating method further includes: Determining that the selector switch selects the raised pantograph; When the pantograph lowering button is pressed, a pantograph lowering instruction is sent to the pantograph lowering relay via the pantograph lowering train line so as to lower the pantograph selected by the driver.

3. The pantograph raising fault location method according to claim 2, characterized in that: The train further includes a pantograph raising circuit diode and a pantograph lowering circuit diode, wherein the anode of the pantograph raising circuit diode and the anode of the pantograph lowering circuit diode are both connected to the selection switch, the cathode of the pantograph raising circuit diode is connected to the pantograph raising relay, and the cathode of the pantograph lowering circuit diode is connected to the pantograph lowering relay; If the pantograph relay loses power, determining whether the pantograph train line is powered to determine the location of the fault point includes: If the pantograph train line is energized, it is determined that the pantograph relay is faulty; If the pantograph train line loses power, it is determined that the pantograph circuit diode is faulty.

4. The pantograph raising fault location method according to claim 2, characterized in that: Also includes: Determining whether the pantograph lowering relay is energized; If the pantograph lowering relay is energized, determining whether the pantograph lowering train line is de-energized; If the pantograph lowering train line is energized, determining that the pantograph lowering button is valid or automatically outputting the pantograph lowering instruction; If the pantograph train line loses power, it is determined that the pantograph relay is faulty.

5. The pantograph raising fault location method according to claim 2, characterized in that: The train further includes a pantograph raising enabling relay, wherein the pantograph raising enabling relay is energized when the pantograph lowering relay loses power; After determining whether the lifting and holding relay loses power within the first preset time, the method further includes: Determining whether the bow raising enabling relay is de-energized; If the bow raising enabling relay is de-energized, determining whether the operating position relays of each vehicle unit are energized; If each of the operating position relays is energized, it is determined that the lifting enabling relay is de-energized.

6. The pantograph raising fault location method according to claim 5, characterized in that: When the train comprises two vehicle units; After determining whether the operating position relays of each vehicle unit are energized, the following steps are also included: If the run position relay of the first vehicle unit is de-energized, determining whether the train line of the first vehicle unit is energized; If the train line of the first vehicle unit is energized, determining that the run position relay of the first vehicle unit is faulty; If the train line of the first vehicle unit loses power, it is determined that the first vehicle unit has not reached the running position; If the run position relay of the second vehicle unit is de-energized, determining whether the train line of the second vehicle unit is energized; If the train line of the second vehicle unit is energized, determining that the run position relay of the second vehicle unit is faulty; If the train line of the second vehicle unit loses power, it is determined that the second vehicle unit has not reached the running position.

7. The pantograph raising fault location method according to claim 5, characterized in that: After determining whether the lifting and holding relay loses power within the first preset time, the method further includes: If the pantograph raising enabling relay and the pantograph raising relay are both energized and the pantograph lowering relay is de-energized, it is determined that the pantograph raising holding relay is faulty.

8. The pantograph raising fault location method according to claim 1, characterized in that: The train further includes a pantograph lowering position sensor, wherein the pantograph lowering position sensor is connected to the pantograph; After determining that the pantograph is raised into position, the method further includes: Determining whether the pantograph-to-net voltage of the traction system corresponding to the pantograph is greater than a preset voltage; If the voltage is not greater than the preset voltage, determining whether a signal sent by the pantograph lowering position sensor is received; If a signal from the pantograph lowering position sensor is received, it is determined that the pantograph pressure switch is faulty; If the signal sent by the pantograph lowering position sensor is not received, it is determined that the power supply circuit is faulty.

9. A controller, characterized in that: include: memory for storing computer programs; A processor, configured to implement the steps of the pantograph raising fault locating method according to any one of claims 1 to 8 when executing the computer program.

10. A train, characterized in that: The train comprises a controller according to claim 9, wherein the train further comprises a pantograph raising relay, a pantograph raising solenoid valve, a pantograph raising holding relay, and a pantograph, wherein the pantograph raising relay is connected to the pantograph raising holding relay and the pantograph respectively, the pantograph raising solenoid valve is connected to the pantograph, and the pantograph raising holding relay is also connected to the pantograph, the pantograph raising relay is used to control the pantograph raising solenoid valve, thereby controlling the raising of the pantograph, and the pantograph raising holding relay is used to keep the pantograph in a raised state; The train further includes a pantograph pressure switch, and the pantograph pressure switches are all connected to the pantograph.

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