Pantograph reconnection control circuit and method of reconnection train and reconnection train

Abstract

The invention provides a pantograph reconnection control circuit and method of a reconnection train and the reconnection train, and can be applied to the technical field of railway vehicles. According to the control circuit, the first end of a pantograph lifting control button corresponding to each pantograph is electrically connected to a cab occupation relay, the second end of the pantograph lifting control button is electrically connected to the first end of a pantograph lifting selection switch, and a pantograph lifting relay is connected with a pantograph lifting electromagnetic valve in series; the selection ends of preset selection numbers of a plurality of pantograph lifting selection switches corresponding to a plurality of pantographs located at preset train numbers in a plurality of reconnection units and a plurality of pantograph lifting relays corresponding to the pantographs are electrically connected to a target reconnection train line; under the conditions that a cab corresponding to any pantograph occupies a relay to be powered on, a pantograph lifting control button is pressed down, and the first end of a pantograph lifting selection switch is electrically connected to the selection end with the number corresponding to the preset train number, the multiple pantographs located at the preset train number in the multiple reconnection units ascend or descend at the same time.

Description

Technical Field

[0001] The present disclosure relates to the technical field of rail vehicles, and more specifically, to a pantograph reconnection control circuit and method for a reconnection train, and a reconnection train. Background Art

[0002] It has become a new trend in train operation to flexibly adjust the marshaling of operating trains according to the changes in passenger flow at different times. During peak passenger flow periods, multiple trains with multiple units can be reconnected to form a reconnected train, and each reconnected unit in the reconnected train can include multiple pantographs.

[0003] In the process of realizing the concept of the present disclosure, it was found that there are at least the following problems in the related art: how to perform the same control operation on multiple pantographs at the same train number in multiple multiple units included in a multiple train has become a problem that needs to be solved urgently. Summary of the invention

[0004] In view of this, the present disclosure provides a pantograph reconnection control circuit and method for a reconnection train and a reconnection train.

[0005] One aspect of the present disclosure provides a pantograph reconnection control circuit of a reconnection train, wherein the reconnection train comprises a first reconnection unit and a second reconnection unit, each of the first reconnection unit and the second reconnection unit comprises at least one train and at least two pantographs, and the control circuit comprises: a pantograph lifting control button corresponding to each pantograph, a pantograph lifting and lowering selection switch, a pantograph lifting and lowering relay, a pantograph lifting solenoid valve, and a driver's cab occupancy relay;

[0006] For each of the pantographs, a first end of a pantograph lifting control button corresponding to the pantograph is electrically connected to a cab occupancy relay, a second end of the pantograph lifting control button is electrically connected to a first end of a pantograph lifting and lowering selection switch, and a pantograph lifting and lowering relay and a pantograph lifting solenoid valve corresponding to the pantograph are connected in series in a power supply circuit of the pantograph lifting solenoid valve;

[0007] For the multiple pantographs located at the predetermined train numbers in the first and second multiplexing units, the selection ends of the predetermined selection numbers of the multiple pantograph selection switches corresponding to the multiple pantographs are all electrically connected to the target multiplexing train line, and the multiple pantograph relays corresponding to the multiple pantographs are all electrically connected to the target multiplexing train line, wherein the predetermined selection numbers correspond to the predetermined train numbers;

[0008] When the driver's cab occupancy relay corresponding to any pantograph is energized, the pantograph raising and lowering control button is pressed, and the first end of the pantograph raising and lowering selection switch is electrically connected to the selection end with a number corresponding to the scheduled train number, multiple pantographs located at the scheduled train number in the above-mentioned first multiplexing unit and the above-mentioned second multiplexing unit are raised or lowered at the same time.

[0009] According to an embodiment of the present disclosure, the pantograph raising and lowering relays corresponding to each pantograph include: a pantograph raising relay and a pantograph lowering relay;

[0010] Among them, the normally open contact controlled by the pantograph raising relay, the normally closed contact controlled by the pantograph lowering relay and the pantograph raising solenoid valve corresponding to each of the above pantographs are connected in series in the power supply circuit of the pantograph raising solenoid valve.

[0011] According to an embodiment of the present disclosure, the above-mentioned pantograph raising and lowering relay corresponding to each of the above-mentioned pantographs includes: a pantograph lowering relay;

[0012] The above-mentioned control circuit also includes: a line passing obstacle button, a first end of which is electrically connected to a plurality of pantograph lowering relays corresponding to the plurality of pantographs near the reconnecting end in the above-mentioned first reconnecting unit and the above-mentioned second reconnecting unit, and is used to form a pathway between the line passing obstacle button and the plurality of pantograph lowering relays when it is determined that there is an obstacle on the line where the contact network in contact with the above-mentioned pantograph is located, the plurality of pantograph lowering relays are energized, and the plurality of pantographs near the reconnecting end in the above-mentioned first reconnecting unit and the above-mentioned second reconnecting unit remain lowered at the same time.

[0013] According to an embodiment of the present disclosure, the above-mentioned control circuit also includes: a line obstacle detection unit, which is electrically connected to the second end of the above-mentioned line obstacle-passing button, and is used to control the pressing of the above-mentioned line obstacle-passing button when it is detected that there is an obstacle on the line where the contact network in contact with the above-mentioned pantograph is located, so as to form a path between the line obstacle-passing button and the above-mentioned multiple pantograph lowering relays.

[0014] According to an embodiment of the present disclosure, the above-mentioned raising and lowering pantograph selection switch includes a raising pantograph selection switch, and the above-mentioned control circuit also includes: a plurality of first transistors corresponding to each of the above-mentioned pantographs, the first ends of the above-mentioned plurality of first transistors are respectively electrically connected to the plurality of selection ends of the above-mentioned raising pantograph selection switch corresponding to the above-mentioned pantographs, and the second ends of the above-mentioned plurality of first transistors are electrically connected to the target reconnecting train lines corresponding to the plurality of selection ends of the above-mentioned raising pantograph selection switch.

[0015] According to an embodiment of the present disclosure, the above-mentioned control circuit also includes: a second transistor corresponding to each pantograph, the first end of the above-mentioned second transistor is electrically connected to the second target reconnected train line corresponding to the above-mentioned pantograph, and the second end of the above-mentioned second transistor is electrically connected to the above-mentioned pantograph lowering relay corresponding to the above-mentioned pantograph.

[0016] Another aspect of the present disclosure provides a pantograph reconnection control method for a reconnection train, which is applied to the above-mentioned control circuit, comprising:

[0017] Activate the train corresponding to any pantograph, so that the driver's cab occupancy relay corresponding to the above train is energized;

[0018] In response to receiving an instruction to control a plurality of pantographs located at predetermined train numbers in the first multiplexing unit and the second multiplexing unit to simultaneously perform a pantograph raising or lowering operation, rotating a pantograph raising / lowering selection switch so that a first end of the pantograph raising / lowering selection switch is electrically connected to a selection end corresponding to a predetermined selection number and the predetermined train number;

[0019] Pressing the pantograph raising and lowering control button forms a connection path between the cab occupancy relay, the pantograph raising and lowering control button, the pantograph raising and lowering selection switch and the target reconnected train line corresponding to the predetermined selection number, and the target reconnected train line is at a predetermined level;

[0020] A plurality of pantograph raising and lowering relays corresponding one by one to the plurality of pantographs located at the predetermined train numbers in the first multiple coupling unit and the second multiple coupling unit simultaneously raise or lower the plurality of pantographs located at the predetermined train numbers in the first multiple coupling unit and the second multiple coupling unit based on the predetermined level.

[0021] According to an embodiment of the present disclosure, the above control method further includes:

[0022] In the case where the plurality of pantograph raising and lowering relays are a plurality of pantograph raising relays, the plurality of pantograph raising relays, based on the predetermined level, simultaneously raise the plurality of pantographs located at predetermined train numbers in the first multiplexing unit and the second multiplexing unit;

[0023] In the case where the plurality of pantograph raising and lowering relays are a plurality of pantograph lowering relays, the plurality of pantograph lowering relays, based on the predetermined level, simultaneously lower the plurality of pantographs located at predetermined train numbers in the first multiplexing unit and the second multiplexing unit.

[0024] According to an embodiment of the present disclosure, the above control method further includes:

[0025] When it is determined that there is an obstacle on the line where the contact network in contact with the above-mentioned pantograph is located, the line passing obstacle button is pressed to form a path between the line passing obstacle button and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnecting end in the above-mentioned first reconnecting unit and the above-mentioned second reconnecting unit, and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnecting end in the above-mentioned first reconnecting unit and the above-mentioned second reconnecting unit are energized, and the multiple pantographs near the reconnecting end in the above-mentioned first reconnecting unit and the above-mentioned second reconnecting unit are kept lowered at the same time.

[0026] Another aspect of the present disclosure provides a multiple-coupled train, comprising: a first multiple-coupled unit and a second multiple-coupled unit, each of the first multiple-coupled unit and the second multiple-coupled unit comprising at least one train and at least two pantographs;

[0027] The above-mentioned control circuit is used to control multiple pantographs located at predetermined train numbers in the above-mentioned first multiplexing unit and the above-mentioned second multiplexing unit to raise or lower the pantographs simultaneously.

[0028] According to the pantograph reconnection control circuit of the reconnection train provided by the embodiment of the present disclosure, the first end of the pantograph lifting control button corresponding to each pantograph is electrically connected to the driver's cab occupancy relay, the second end is electrically connected to the first end of the lifting pantograph selection switch, and the lifting pantograph relay and the lifting pantograph solenoid valve are connected in series. And for the multiple pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit, the selection ends of the predetermined selection numbers of the multiple lifting pantograph selection switches corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple lifting pantograph relays corresponding to the multiple pantographs are all electrically connected to the target reconnection train line. When the driver's cab occupancy relay corresponding to any pantograph is energized, the pantograph lifting control button is pressed, and the first end of the lifting pantograph selection switch is electrically connected to the selection end corresponding to the number of the predetermined train number, the multiple pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit are simultaneously raised or lowered. In this way, the synchronous and orderly control of raising or lowering the pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0030] Figure 1 A schematic diagram of a multiple-unit train according to an embodiment of the present disclosure is schematically shown;

[0031] Figure 2 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to an embodiment of the present disclosure is schematically shown;

[0032] Figure 3 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to another embodiment of the present disclosure is schematically shown;

[0033] Figure 4 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to another embodiment of the present disclosure is schematically shown;

[0034] Figure 5 A schematic diagram of the related technology for controlling multiple pantographs in a multiple-unit train to cross obstacles is shown schematically;

[0035] Figure 6 A schematic diagram schematically shows a pantograph reconnection control circuit of a reconnection train according to an embodiment of the present disclosure controlling multiple pantographs in the reconnection train to cross an obstacle;

[0036] Figure 7 A flow chart schematically shows a pantograph reconnection control method for a reconnection train according to an embodiment of the present disclosure; and

[0037] Figure 8 A schematic diagram of a multiple-unit train according to another embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0038] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0039] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0040] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0041] When using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted according to the meaning of the expression generally understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.). The words "first", "second", and similar terms used in the embodiments of the present disclosure do not indicate any order, quantity, or importance, but are only used to distinguish different components.

[0042] In addition, in the description of the embodiments of the present disclosure, the terms "connected", "connected to", or "electrically connected to" may refer to two components being directly connected, or may refer to two components being connected via one or more other components. In addition, the two components may be connected or coupled via a wired or wireless method.

[0043] It has become a new trend in subway train operation to flexibly adjust the marshaling of operating trains according to changes in passenger flow at different times. Taking a three-car short-marshaling train as an example, the whole train can adopt a redundant configuration of two pantographs. During normal operation, only one pantograph is raised, and the current of a single pantograph can meet its power demand during operation. During peak passenger flow, two three-car short-marshaling unit trains are reconnected to form a reconnected train (i.e., a "3+3" marshaling). The reconnected train has a total of four pantographs. The selection control and lifting and lowering control of the four pantographs has become an urgent problem to be solved.

[0044] In order to at least partially solve the technical problems existing in the related art, an embodiment of the present disclosure provides a pantograph reconnection control circuit and method for a reconnection train and a reconnection train.

[0045] Figure 1 A schematic diagram of a multiple-unit train according to an embodiment of the present disclosure is schematically shown.

[0046] like Figure 1 As shown, the multiple-unit train 100 provided in the embodiment of the present disclosure may include a first multiple-unit 110 and a second multiple-unit 120, and each of the first multiple-unit 110 and the second multiple-unit 120 may include at least one train and at least two pantographs.

[0047] For example, in Figure 1In the embodiment, the first multiplex unit 110 and the second multiplex unit 120 may each include three unit trains. Each of the first multiplex unit 110 and the second multiplex unit 120 is provided with a pantograph on the first and third cars of the three unit trains. Each of the first multiplex unit 110 and the second multiplex unit 120 is a single three-car short-unit. When a single three-car short-unit is in operation, a single pantograph operation may be adopted, with only the pantograph of the first car or the pantograph of the third car raised.

[0048] Figure 1 The single 3-section short-section unit adopts a redundant configuration of two pantographs. When one of the pantographs fails and cannot be used, the other pantograph can be raised, thereby avoiding the impact of pantograph failure on the operation of the single 3-section short-section unit.

[0049] According to the embodiments of the present disclosure, Figure 2 Pantograph reconnection control circuit of reconnection train Figure 1 The pantographs of the recoupled train are recoupled and controlled to ensure that only two pantographs are put into operation and the remaining two are not in operation after the reconnection, and that the two pantographs of the first and second reconnected units 110 and 120 that are put into operation are in the same vehicle position, that is, the two pantographs of the first car or the two pantographs of the third car, and that the two pantographs that are put into operation can be raised or lowered at the same time.

[0050] Figure 2 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to an embodiment of the present disclosure is schematically shown.

[0051] like Figure 2 As shown, the pantograph reconnection control circuit of the reconnection train may include a pantograph raising and lowering control button S1 corresponding to each pantograph, a pantograph raising and lowering selection switch S2, a pantograph raising and lowering relay K2, a pantograph raising solenoid valve and a cab occupancy relay K1.

[0052] For the cab occupancy relay K1, when the cab of Tmcp1 (or Tmcp2) is activated by the driver, K1 is energized. The pantograph lifting and lowering control button S1 is located on the operating console of the cab. The pantograph lifting and lowering switch S2 can include two gears: "pantograph 1" and "pantograph 3".

[0053] For each pantograph, the first end of the pantograph lifting and lowering control button S1 corresponding to the pantograph is electrically connected to the driver's cab occupancy relay K1, the second end of the pantograph lifting and lowering control button S1 is electrically connected to the first end of the pantograph lifting and lowering selection switch S2, and the pantograph lifting and lowering relay K2 corresponding to the pantograph and the pantograph lifting solenoid valve are connected in series in the power supply circuit of the pantograph lifting solenoid valve.

[0054] For the multiple pantographs located at the predetermined train numbers in the first and second reconnection units, the selection ends of the predetermined selection numbers of the multiple pantograph selection switches S2 corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple pantograph relays corresponding to the multiple pantographs are all electrically connected to the target reconnection train line. The predetermined selection number corresponds to the predetermined train number.

[0055] For example, in Figure 2 In the embodiment, for the multiple pantographs with the predetermined train number Tmcp1 located in the first and second multiplexing units, the selection ends of the predetermined selection number pantograph 1 of the multiple pantograph raising and lowering selection switches S2 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 102, and the multiple pantograph raising and lowering relays K2 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 102.

[0056] For the multiple pantographs with the predetermined train number Tmcp2 located in the first and second multi-units, the selection ends of the predetermined selection number pantographs 3 of the multiple pantograph selection switches S2 corresponding one by one to the multiple pantographs can all be electrically connected to the target multi-unit train line 101, and the multiple pantograph relays K2 corresponding one by one to the multiple pantographs can all be electrically connected to the target multi-unit train line 101.

[0057] exist Figure 2 In the process, when the cab occupancy relay K1 corresponding to any pantograph is energized, the pantograph raising and lowering control button S1 is pressed, and the first end of the pantograph raising and lowering selection switch S2 is electrically connected to the selection end with a number corresponding to the scheduled train number, multiple pantographs located at the scheduled train number in the first and second multiplexing units are raised or lowered at the same time.

[0058] According to an embodiment of the present disclosure, when the driver's cab occupancy relay K1 corresponding to any pantograph is energized, the pantograph raising and lowering control button S1 is pressed, and the first end of the pantograph raising and lowering selection switch S2 is electrically connected to the selection end with a number corresponding to the scheduled train number, multiple pantograph raising and lowering relays K2 corresponding to multiple pantographs at the scheduled train numbers in the first multi-connection unit and the second multi-connection unit are all energized.

[0059] According to the pantograph reconnection control circuit of the reconnection train provided by the embodiment of the present disclosure, the first end of the pantograph lifting control button corresponding to each pantograph is electrically connected to the driver's cab occupancy relay, the second end is electrically connected to the first end of the lifting pantograph selection switch, and the lifting pantograph relay and the lifting pantograph solenoid valve are connected in series. And for the multiple pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit, the selection ends of the predetermined selection numbers of the multiple lifting pantograph selection switches corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple lifting pantograph relays corresponding to the multiple pantographs are all electrically connected to the target reconnection train line. When the driver's cab occupancy relay corresponding to any pantograph is energized, the pantograph lifting control button is pressed, and the first end of the lifting pantograph selection switch is electrically connected to the selection end corresponding to the number of the predetermined train number, the multiple pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit are simultaneously raised or lowered. In this way, the synchronous and orderly control of raising or lowering the pantographs located at the predetermined train number in the first reconnection unit and the second reconnection unit is realized.

[0060] according to Figure 2 The pantograph reconnection control circuit of the reconnection train shown can raise or lower multiple pantographs at the predetermined train numbers in the first and second reconnection units at the same time when the cab occupancy relay corresponding to any pantograph is energized, the pantograph raising and lowering control button is pressed, and the first end of the pantograph raising and lowering selection switch is electrically connected to the selection end with the number corresponding to the predetermined train number. This can achieve orderly and convenient control of the pantographs in the reconnection train while ensuring that the train positions of the two pantographs receiving current in the reconnection train are consistent.

[0061] according to Figure 2 The pantograph reconnection control circuit of the reconnection train shown can control the two reconnection unit trains involved in the reconnection to put one pantograph into operation respectively, and the remaining half of the pantographs are not put into operation, which greatly reduces the use cost of the pantograph. At the same time, the amount of carbon slide replacement can be reduced, thereby reducing the maintenance cost and the maintenance workload of the train.

[0062] exist Figure 2 The pantograph raising and lowering relay K2 corresponding to each pantograph may include: a pantograph raising relay and a pantograph lowering relay. The normally open contact controlled by the pantograph raising relay, the normally closed contact controlled by the pantograph lowering relay and the pantograph raising solenoid valve corresponding to each pantograph are connected in series in the power supply circuit of the pantograph raising solenoid valve.

[0063] According to an embodiment of the present disclosure, when the pantograph raising relay is energized, it means that the corresponding pantograph is raised, and when the pantograph lowering relay is energized, it means that the corresponding pantograph is lowered.

[0064] According to the embodiment of the present disclosure, due to the technical means of connecting the normally open contact controlled by the pantograph raising relay corresponding to each pantograph, the normally closed contact controlled by the pantograph lowering relay, and the pantograph raising solenoid valve in series in the power supply circuit of the pantograph raising solenoid valve, the driver's cab occupancy relay K1 corresponding to any pantograph can be energized, the pantograph raising and lowering control button S1 can be pressed, and the first end of the pantograph raising and lowering selection switch S2 can be electrically connected to the selection end with the number corresponding to the scheduled train number, so that the multiple pantograph raising relays corresponding to the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are energized, and the normally open contacts of the multiple pantograph raising relays are closed. In addition, the multiple pantograph raising solenoid valves corresponding to the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are energized, so that the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are raised at the same time.

[0065] Similarly, the driver's cab occupancy relay K1 corresponding to any pantograph can be energized, the pantograph raising and lowering control button S1 can be pressed, and the first end of the pantograph raising and lowering selection switch S2 can be electrically connected to the selection end with the number corresponding to the scheduled train number, so that the multiple pantograph lowering relays corresponding to the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are energized, and the normally closed contacts of the multiple pantograph lowering relays are disconnected. In addition, the multiple pantograph raising solenoid valves corresponding to the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are de-energized, so that the multiple pantographs at the scheduled train numbers in the first and second multi-connection units are lowered at the same time.

[0066] Based on Figure 2 In the pantograph reconnection control circuit of the reconnection train, when multiple pantographs located at predetermined train numbers in the first reconnection unit and the second reconnection unit are raised at the same time, the pantograph raising and lowering control button S1 may include a pantograph raising control button, the pantograph raising and lowering selection switch S2 may include a pantograph raising selection switch, and the pantograph raising and lowering relay K2 may include a pantograph raising relay.

[0067] For example, based on Figure 2 The pantograph reconnection control circuit of the reconnection train in the embodiment of the present invention is configured to raise the pantographs of the reconnection train at the same time when the pantographs of the reconnection train at the predetermined train numbers in the first reconnection unit and the second reconnection unit are raised. Figure 2 The equivalent circuit of the pantograph reconnection control circuit of the reconnection train is as follows Figure 3 shown.

[0068] Figure 3 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to another embodiment of the present disclosure is schematically shown.

[0069] like Figure 3As shown, the pantograph reconnection control circuit of the reconnection train may include a pantograph raising control button S11 corresponding to each pantograph, a pantograph raising selection switch S21, a pantograph raising relay K21, a pantograph raising solenoid valve and a cab occupancy relay K1.

[0070] For each pantograph, the first end of the pantograph raising control button S11 corresponding to the pantograph is electrically connected to the driver's cab occupancy relay K1, the second end of the pantograph raising control button S11 is electrically connected to the first end of the pantograph raising selection switch S21, and the pantograph raising relay K21 and the pantograph raising solenoid valve corresponding to the pantograph are connected in series in the power supply circuit of the pantograph raising solenoid valve.

[0071] For the multiple pantographs located at the predetermined train numbers in the first and second reconnection units, the selection ends of the predetermined selection numbers of the multiple pantograph raising and pantograph selecting switches S21 corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple pantograph raising relays K21 corresponding to the multiple pantographs are all electrically connected to the target reconnection train line. The predetermined selection number corresponds to the predetermined train number.

[0072] For example, in Figure 3 In the embodiment, for the multiple pantographs with the predetermined train number Tmcp1 located in the first and second multiplexing units, the selection ends of the predetermined selection number pantograph 1 of the multiple pantograph raising selection switches S21 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 104, and the multiple pantograph raising relays K21 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 104.

[0073] For the multiple pantographs with the predetermined train number Tmcp2 located in the first and second multiplexing units, the selection ends of the predetermined selection number pantograph 3 of the multiple pantograph raising selection switches S21 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 103, and the multiple pantograph raising relays K21 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 103.

[0074] like Figure 3 The pantograph reconnection control circuit of the reconnected train shown may also include a plurality of first transistors Q1 corresponding to each pantograph. The first ends of the plurality of first transistors Q1 may be electrically connected to the plurality of selection ends of the pantograph selection switch S21 corresponding to the pantograph, respectively. The second ends of the plurality of first transistors Q1 may be electrically connected to the target reconnected train lines corresponding to the plurality of selection ends of the pantograph selection switch S21, respectively. Among them, the first ends of the plurality of first transistors Q1 may be anodes of the plurality of first transistors Q1. The second ends of the plurality of first transistors Q1 may be cathodes of the plurality of first transistors Q1.

[0075] According to an embodiment of the present disclosure, based on the first transistor set between the bow raising and bow selecting switch and the target reconnecting train line, it is possible to prevent the reverse current from affecting the devices in the circuit.

[0076] exist Figure 3 , set the target multiplexed train lines 103 and 104. When the pantograph selection switch S21 is in the "pantograph 1" position, the target multiplexed train line 104 will be selected, and the two 1-car pantographs of the first multiplexed unit and the second multiplexed unit will be selected and put into operation. When the pantograph selection switch S21 is in the "pantograph 3" position, the target multiplexed train line 103 will be selected, and the two 3-car pantographs of the first multiplexed unit and the second multiplexed unit will be selected and put into operation. It is ensured that only two pantographs of the multiplexed train are put into operation and their positions are consistent.

[0077] Based on Figure 2 In the pantograph reconnection control circuit of the reconnected train, when multiple pantographs located at predetermined train numbers in the first reconnection unit and the second reconnection unit are lowered at the same time, the pantograph raising and lowering control button S1 may include a pantograph lowering control button, the pantograph raising and lowering selection switch S2 may include a pantograph lowering selection switch, and the pantograph raising and lowering relay K2 may include a pantograph lowering relay.

[0078] For example, based on Figure 2 The pantograph reconnection control circuit of the reconnection train in the embodiment of the present invention is configured to simultaneously lower the pantographs of the reconnection train at the predetermined train numbers in the first reconnection unit and the second reconnection unit. Figure 2 The equivalent circuit of the pantograph reconnection control circuit of the reconnection train is as follows Figure 4 shown.

[0079] Figure 4 A schematic diagram of a pantograph reconnection control circuit of a reconnection train according to yet another embodiment of the present disclosure is schematically shown.

[0080] like Figure 4 As shown, the pantograph reconnection control circuit of the reconnection train may include a pantograph lowering control button S12 corresponding to each pantograph, a pantograph lowering selection switch S22, a pantograph lowering relay K22, a pantograph raising solenoid valve and a cab occupancy relay K1.

[0081] For each pantograph, the first end of the pantograph lowering control button S12 corresponding to the pantograph is electrically connected to the driver's cab occupancy relay K1, the second end of the pantograph lowering control button S12 is electrically connected to the first end of the pantograph lowering selection switch S22, and the pantograph lowering relay K22 corresponding to the pantograph and the pantograph raising solenoid valve are connected in series in the power supply circuit of the pantograph raising solenoid valve.

[0082] For the multiple pantographs located at the predetermined train numbers in the first and second reconnection units, the selection ends of the predetermined selection numbers of the multiple pantograph selection switches S22 corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple pantograph relays K22 corresponding to the multiple pantographs are all electrically connected to the target reconnection train line. The predetermined selection number corresponds to the predetermined train number.

[0083] For example, in Figure 4 In the embodiment, for the multiple pantographs with the predetermined train number Tmcp1 located in the first and second multiplexing units, the selection ends of the predetermined selection number pantograph 1 of the multiple pantograph lowering selection switches S22 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 106, and the multiple pantograph lowering relays K22 corresponding one by one to the multiple pantographs can all be electrically connected to the target multiplexing train line 106.

[0084] For the multiple pantographs with the predetermined train number Tmcp2 located in the first and second multi-units, the selection ends of the predetermined selection number pantograph 3 of the multiple pantograph lowering selection switches S22 corresponding one by one to the multiple pantographs can all be electrically connected to the target multi-unit train line 105, and the multiple pantograph lowering relays K22 corresponding one by one to the multiple pantographs can all be electrically connected to the target multi-unit train line 105.

[0085] exist Figure 4 , set the target multiplexed train lines 105 and 106. When the pantograph selection switch S22 is in the "pantograph 1" position, the target multiplexed train line 106 will be selected, and the two 1-car pantographs of the first multiplexed unit and the second multiplexed unit will be selected and put into operation. When the pantograph selection switch S22 is in the "pantograph 3" position, the target multiplexed train line 105 will be selected, and the two 3-car pantographs of the first multiplexed unit and the second multiplexed unit will be selected and put into operation. It is ensured that only two pantographs of the multiplexed train are put into the pantograph lowering operation, and their positions are consistent.

[0086] During the operation of multiplexed trains (e.g., multiplexed subway cars), it is common to encounter obstacles on the overhead line, especially on overhead lines. Figure 1 For the multiple-unit train (100), how to efficiently and conveniently allow the four pantographs to smoothly cross obstacles has become a difficult problem that needs to be solved urgently.

[0087] Figure 5 A schematic diagram of the related technology for controlling multiple pantographs in a multiple-unit train to cross obstacles is shown schematically.

[0088] Depend on Figure 1It can be seen that when the double-unit train is in normal operation, the two pantographs of car 1 or the two pantographs of car 3 can be raised at the same time to work. Figure 5 The method shown overcomes the obstacle in 4 steps.

[0089] Figure 5 The method for crossing the obstacle is: in the first step, lower the two 1-car bows, raise the two 3-car bows, and run the train over the 1-car bow of the first multiplex unit; in the second step: lower the two 3-car bows, raise the two 1-car bows, and run the train over the 3-car bow of the first multiplex unit; in the third step: lower the two 1-car bows, raise the two 3-car bows, and run the train over the 1-car bow of the second multiplex unit; in the fourth step: lower the two 3-car bows, raise the two 1-car bows, and run the train over the 3-car bow of the second multiplex unit.

[0090] Depend on Figure 5 It can be seen that according to Figure 5 In this traditional method, the operation process of passing obstacles will be very cumbersome. In order to simplify the operation steps, it can be based on Figure 4 The pantograph reconnection control circuit of the reconnected train solves the problem of how to efficiently and conveniently allow the four pantographs to smoothly cross obstacles.

[0091] like Figure 4 As shown, Figure 4 The pantograph reconnection control circuit of the reconnection train may further include: a line passing obstacle button S3. The first end of the line passing obstacle button S3 may be electrically connected to a plurality of pantograph lowering relays K22 corresponding to a plurality of pantographs near the reconnection end in the first reconnection unit and the second reconnection unit.

[0092] like Figure 4 The pantograph reconnection control circuit of the reconnection train shown may also include a second transistor Q2 corresponding to each pantograph. The first end of the second transistor Q2 is electrically connected to the second target reconnection train line corresponding to the pantograph, and the second end of the second transistor Q2 is electrically connected to the pantograph lowering relay K22 corresponding to the pantograph. The first end of the second transistor Q2 may be an anode of the second transistor Q2. The second end of the second transistor Q2 may be a cathode of the second transistor Q2.

[0093] The line passing obstacle button S3 can be used to form a path between the line passing obstacle button S3 and multiple pantograph lowering relays K22 when it is determined that there is an obstacle on the line where the contact network in contact with the pantograph is located. The multiple pantograph lowering relays S3 are energized, and the multiple pantographs close to the reconnection end in the first reconnection unit and the second reconnection unit remain lowered at the same time.

[0094] According to the embodiments of the present disclosure, based on the second transistor arranged between the pantograph lowering relay and the target reconnected train line, it is possible to ensure that when the line encounters an obstacle, multiple pantographs at the reconnected end of the reconnected train are put into the pantograph lowering operation with consistent positions, and at the same time prevent reverse current from affecting the devices in the circuit.

[0095] Figure 4 The pantograph reconnection control circuit of the reconnection train may also include: a line obstacle detection unit, electrically connected to the second end of the line obstacle passing button S3, for controlling the line obstacle passing button S3 to be pressed when an obstacle is detected on the line where the contact network in contact with the pantograph is located, so as to form a path between the line obstacle passing button S3 and multiple pantograph lowering relays K22.

[0096] For example Figure 4 The pantograph reconnection control circuit of the reconnection train shown in the figure can be Figure 6 The method shown is to get over the obstacle.

[0097] Figure 6 A schematic diagram is shown schematically showing a pantograph reconnection control circuit of a reconnection train according to an embodiment of the present disclosure controlling multiple pantographs in a reconnection train to cross an obstacle.

[0098] Figure 6 The method of crossing obstacles is: when an obstacle is detected on the line where the overhead contact network in contact with the pantograph is located, press the line crossing obstacle button S3 to control the two pantographs near the reconnection end to keep the pantographs lowered. Then follow the following two steps to cross the obstacle: in step 1: lower the 1st pantograph of the first reconnection unit, raise the 3rd pantograph of the second reconnection unit, and run the reconnection train to cross the 1st and 3rd pantographs of the first reconnection unit and the 1st pantograph of the second reconnection unit; in step 2: lower the 3rd pantograph of the second reconnection unit, raise the 1st pantograph of the first reconnection unit, and run the reconnection train to cross the 3rd pantograph of the second reconnection unit.

[0099] Depend on Figure 6 It can be seen that a function of passing the line contact network over obstacles is added to the pantograph reconnection and pantograph lowering control circuit. When the line encounters an obstacle, by pressing the line passing obstacle button S3, a pantograph lowering command will be sent to the two pantographs close to the reconnection end, and the corresponding pantograph lowering relay K22 will be energized, thereby controlling the corresponding two pantographs at the reconnection end to remain in the lowered state, thereby reducing the number of pantographs involved in passing obstacles and simplifying the operation process.

[0100] Figure 7 A flow chart of a pantograph reconnection control method for a reconnection train according to an embodiment of the present disclosure is schematically shown.

[0101] It should be noted that Figure 7The pantograph reconnection control method of the reconnected train in the embodiment corresponds to the pantograph reconnection control method of the reconnected train described above. Figure 7 The pantograph reconnection control method of the reconnection train is applied to the pantograph reconnection control circuit of the reconnection train. Figure 7 For further explanation of the pantograph reconnection control method of the reconnection train, please refer to the pantograph reconnection control circuit part of the reconnection train mentioned above.

[0102] like Figure 7 As shown, the pantograph reconnection control method of a reconnection train may include operations S701 to S703.

[0103] In operation S701, a train corresponding to any pantograph is activated, so that a cab occupancy relay corresponding to the train is energized.

[0104] In operation S702, in response to receiving an instruction to control multiple pantographs located at predetermined train numbers in the first and second multiplex units to simultaneously perform pantograph raising or lowering operations, the pantograph raising / lowering selection switch is rotated so that the first end of the pantograph raising / lowering selection switch is electrically connected to the selection end corresponding to the predetermined selection number and the predetermined train number.

[0105] In operation S703, the pantograph raising and lowering control button is pressed to form a connection path between the cab occupancy relay, the pantograph raising and lowering control button, the pantograph raising and lowering selection switch and the target reconnected train line corresponding to the predetermined selection number, the target reconnected train line is at a predetermined level, and the pantograph raising and lowering relays corresponding to the pantographs at the predetermined train numbers in the first reconnected unit and the second reconnected unit are raised or lowered at the same time based on the predetermined level. The predetermined level is a high level.

[0106] Figure 7 The pantograph reconnection control method of the reconnected train may also include: in the case where the multiple pantograph raising and lowering relays are multiple pantograph raising relays, the multiple pantograph raising relays, based on a predetermined level, cause the multiple pantographs at the predetermined train numbers in the first reconnecting unit and the second reconnecting unit to be raised simultaneously; in the case where the multiple pantograph raising and lowering relays are multiple pantograph lowering relays, the multiple pantograph lowering relays, based on a predetermined level, cause the multiple pantographs at the predetermined train numbers in the first reconnecting unit and the second reconnecting unit to be lowered simultaneously.

[0107] Figure 7The pantograph reconnection control method of the reconnection train may also include: when it is determined that there is an obstacle on the line where the contact network in contact with the pantograph is located, pressing the line over-obstacle button to form a path between the line over-obstacle button and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnection end in the first reconnection unit and the second reconnection unit, and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnection end in the first reconnection unit and the second reconnection unit are energized, and the multiple pantographs near the reconnection end in the first reconnection unit and the second reconnection unit are kept in the lowered state at the same time.

[0108] Figure 8 A schematic diagram of a multiple-unit train according to another embodiment of the present disclosure is schematically shown.

[0109] like Figure 8 As shown, the multiple-unit train 800 provided in the embodiment of the present disclosure may include a first multiple-unit 810 and a second multiple-unit 820, and each of the first multiple-unit 810 and the second multiple-unit 820 may include at least one train and at least two pantographs.

[0110] The multiple-unit train 800 may further include a pantograph multiple-unit control circuit 830 for the multiple-unit train, which is used to control multiple pantographs at predetermined train numbers in the first multiple-unit unit 810 and the second multiple-unit unit 820 to simultaneously raise or lower the pantographs.

[0111] According to an embodiment of the present disclosure, the pantograph reconnection control circuit 830 of the reconnection train can be Figure 2 , Figure 3 or Figure 4 The pantograph reconnection control circuit of any reconnected train.

[0112] According to an embodiment of the present disclosure, the control circuit 830 may also Figure 4 The pantograph reconnection control circuit of the reconnected train, when detecting that there is an obstacle on the line where the contact network in contact with the pantograph is located, controls the line passing the obstacle button to be pressed, so that a path is formed between the line passing the obstacle button and multiple pantograph lowering relays to control the corresponding two pantographs at the reconnected end to remain in the lowered state, thereby reducing the number of pantographs involved in passing the obstacle.

[0113] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions. It can be understood by those skilled in the art that the features recorded in the various embodiments and / or claims of the present disclosure can be combined and / or combined in a variety of ways, even if such a combination or combination is not explicitly recorded in the present disclosure. In particular, without departing from the spirit and teaching of the present disclosure, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0114] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is limited by the attached embodiments and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A pantograph reconnection control circuit for a reconnection train, wherein: The multiple-unit train comprises a first multiple-unit and a second multiple-unit, each of the first multiple-unit and the second multiple-unit comprises at least one train and at least two pantographs, and the control circuit comprises: a pantograph raising and lowering control button corresponding to each pantograph, a pantograph raising and lowering selection switch, a pantograph raising and lowering relay, a pantograph raising solenoid valve, and a cab occupancy relay; For each pantograph, a first end of a pantograph lifting control button corresponding to the pantograph is electrically connected to a cab occupancy relay, a second end of the pantograph lifting control button is electrically connected to a first end of a pantograph lifting and lowering selection switch, and a pantograph lifting and lowering relay and a pantograph lifting solenoid valve corresponding to the pantograph are connected in series in a power supply circuit of the pantograph lifting solenoid valve; For the multiple pantographs located at the predetermined train numbers in the first and second reconnection units, the selection ends of the predetermined selection numbers of the multiple pantograph lifting and lowering selection switches corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, and the multiple pantograph lifting and lowering relays corresponding to the multiple pantographs are all electrically connected to the target reconnection train line, wherein the predetermined selection number corresponds to the predetermined train number; When the driver's cab occupancy relay corresponding to any pantograph is energized, the pantograph raising and lowering control button is pressed, and the first end of the pantograph raising and lowering selection switch is electrically connected to the selection end with a number corresponding to the scheduled train number, multiple pantographs located at the scheduled train number in the first multiplexing unit and the second multiplexing unit are raised or lowered at the same time.

2. The control circuit according to claim 1, wherein: The pantograph raising and lowering relays corresponding to each pantograph include: a pantograph raising relay and a pantograph lowering relay; Among them, the normally open contact controlled by the pantograph raising relay, the normally closed contact controlled by the pantograph lowering relay and the pantograph raising solenoid valve corresponding to each pantograph are connected in series in the power supply circuit of the pantograph raising solenoid valve.

3. The control circuit according to claim 1 or 2, wherein: The pantograph raising and lowering relay corresponding to each pantograph comprises: a pantograph lowering relay; The control circuit also includes: a line-over-obstacle button, a first end of which is electrically connected to a plurality of pantograph-lowering relays corresponding to a plurality of pantographs in the first and second multi-connection units near the multi-connection ends, and is used to form a pathway between the line-over-obstacle button and the plurality of pantograph-lowering relays when it is determined that there is an obstacle on the line where the contact network in contact with the pantograph is located, so that the plurality of pantograph-lowering relays are energized and the plurality of pantographs in the first and second multi-connection units near the multi-connection ends remain lowered at the same time.

4. The control circuit according to claim 3, wherein: It also includes: a line obstacle detection unit, which is electrically connected to the second end of the line obstacle-passing button, and is used to control the line obstacle-passing button to be pressed when an obstacle is detected on the line where the contact network in contact with the pantograph is located, so as to form a path between the line obstacle-passing button and the multiple pantograph lowering relays.

5. The control circuit according to any one of claims 1 to 4, wherein: The raising and lowering pantograph selection switch includes a raising pantograph selection switch, and the control circuit also includes: a plurality of first transistors corresponding to each of the pantographs, the first ends of the plurality of first transistors being respectively electrically connected to a plurality of selection ends of the raising pantograph selection switch corresponding to the pantograph, and the second ends of the plurality of first transistors being electrically connected to the target reconnecting train lines corresponding to the plurality of selection ends of the raising pantograph selection switch.

6. The control circuit according to claim 3, wherein: The control circuit also includes: a second transistor corresponding to each pantograph, a first end of the second transistor electrically connected to a second target reconnected train line corresponding to the pantograph, and a second end of the second transistor electrically connected to the pantograph lowering relay corresponding to the pantograph.

7. A pantograph reconnection control method for a reconnection train, applied to the control circuit according to any one of claims 1 to 6, comprising: Activate the train corresponding to any pantograph, so that the driver's cab occupancy relay corresponding to the train is energized; In response to receiving an instruction to control a plurality of pantographs located at predetermined train numbers in the first and second multiplex units to simultaneously perform a pantograph raising or lowering operation, rotating a pantograph raising / lowering selection switch so that a first end of the pantograph raising / lowering selection switch is electrically connected to a selection end corresponding to a predetermined selection number and the predetermined train number; Pressing the pantograph raising and lowering control button forms a connection path between the cab occupancy relay, the pantograph raising and lowering control button, the pantograph raising and lowering selection switch and the target reconnected train line corresponding to the predetermined selection number, and the target reconnected train line is at a predetermined level; A plurality of pantograph raising and lowering relays corresponding one by one to the plurality of pantographs at the predetermined train numbers in the first and second multi-units cause the plurality of pantographs at the predetermined train numbers in the first and second multi-units to be raised or lowered simultaneously based on the predetermined level.

8. The control method according to claim 7, further comprising: In the case where the plurality of pantograph raising and lowering relays are a plurality of pantograph raising relays, the plurality of pantograph raising relays, based on the predetermined level, cause a plurality of pantographs located at predetermined train numbers in the first and second multiplexing units to be raised simultaneously; In the case where the multiple pantograph raising and lowering relays are multiple pantograph lowering relays, the multiple pantograph lowering relays, based on the predetermined level, cause multiple pantographs located at predetermined train numbers in the first and second multiple coupling units to be lowered simultaneously.

9. The control method according to claim 8, further comprising: When it is determined that there is an obstacle on the line where the contact network in contact with the pantograph is located, the line passing the obstacle button is pressed to form a path between the line passing the obstacle button and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnecting end in the first reconnecting unit and the second reconnecting unit, and the multiple pantograph lowering relays corresponding to the multiple pantographs near the reconnecting end in the first reconnecting unit and the second reconnecting unit are energized, and the multiple pantographs near the reconnecting end in the first reconnecting unit and the second reconnecting unit are kept lowered at the same time.

10. A multiple-unit train, comprising: A first reconnection unit and a second reconnection unit, each of the first reconnection unit and the second reconnection unit comprising at least one train and at least two pantographs; The control circuit according to any one of claims 1 to 6 is used to control the simultaneous raising or lowering of multiple pantographs located at predetermined train numbers in the first and second multiplexing units.

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