CN109263625B - Control circuit for emergency braking during reconnection of railway vehicle and engineering maintenance vehicle - Google Patents
Control circuit for emergency braking during reconnection of railway vehicle and engineering maintenance vehicle Download PDFInfo
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- CN109263625B CN109263625B CN201811238014.1A CN201811238014A CN109263625B CN 109263625 B CN109263625 B CN 109263625B CN 201811238014 A CN201811238014 A CN 201811238014A CN 109263625 B CN109263625 B CN 109263625B
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- control circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
Abstract
The invention discloses a control circuit for emergency braking during reconnection of a rail vehicle and an engineering maintenance vehicle. Therefore, by the method, emergency braking signals of other vehicles can be transmitted to the safety interlocking circuit of the master control locomotive, so that emergency braking is realized through the safety interlocking circuit of the master control locomotive, the potential safety hazard caused by the fact that the emergency stop of the whole marshalling can only be controlled by the master control locomotive under the complex operation marshalling is effectively solved, the emergency stop of the locomotive can be controlled and ensured under the emergency condition of the whole operation marshalling, and the safety and reliability of operation are improved. In addition, the engineering maintenance vehicle provided by the invention also has the above effects.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a control circuit for emergency braking during reconnection of a railway vehicle and an engineering maintenance vehicle.
Background
With the continuous development of railway transportation, engineering maintenance vehicles are often required to be ganged with other different kinds of unpowered vehicles (passenger cars, flatcars, etc.) to meet different requirements. The engineering maintenance vehicle mainly refers to a storage battery rail engineering maintenance vehicle.
Currently, in the case of a work maintenance vehicle as a master locomotive in a multi-consist with other work vehicles or other rescued vehicles (passenger trains), the operation of the entire consist is controlled by the master locomotive. The engineering maintenance vehicle has a safety interlock loop, and emergency braking of the vehicle is triggered by disconnecting the safety interlock loop. However, since the operation of the entire consist is controlled by the engineering maintenance vehicle as the master locomotive, emergency braking can only be triggered on the master locomotive and not on other vehicles than the master locomotive. Therefore, if an emergency situation affecting safety is found on a vehicle other than the master locomotive, the master locomotive cannot be immediately commanded to stop in an emergency, thereby causing a safety accident.
Therefore, how to improve the driving safety is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a control circuit for emergency braking during reconnection of a railway vehicle and an engineering maintenance vehicle, which are used for improving the driving safety.
In order to solve the technical problem, the invention provides a control circuit for emergency braking during reconnection of a rail vehicle, which comprises a first switch arranged on a safety interlocking loop of an engineering maintenance vehicle serving as a master control locomotive and a control loop for controlling the action of the first switch, wherein the control loop is connected with a loop where an emergency trigger device of a vehicle serving as a non-master control locomotive is located and is used for controlling the first switch to be disconnected when the emergency trigger device acts.
Preferably, the control circuit specifically comprises a coil of the time delay relay and a power supply circuit of the coil of the time delay relay, the anode of the coil is connected with the anode of the power supply and one side of the circuit where the emergency trigger device is located, the cathode of the coil is connected with the cathode of the power supply, and the control end of the coil is connected with the other side of the circuit where the emergency trigger device is located;
the first switch is a normally closed contact of the time delay relay, the normally closed contact is connected in series on the safety interlocking loop, the control end is changed from an on state to an off state, and after a preset time delay, the normally closed contact is changed from the on state to the off state.
Preferably, the safety interlock circuit further comprises a second switch connected in series with the safety interlock circuit, wherein the second switch is opened when the network module of the engineering maintenance vehicle detects that the emergency trigger device of the vehicle other than the master locomotive is triggered.
Preferably, the positive electrode of the coil is connected with one side of a loop where the emergency trigger device is located through a train line, and the control end of the coil is connected with the other side of the loop where the emergency trigger device is located through the train line.
Preferably, the predetermined period of time is specifically 0.1 second.
Preferably, the network module of the engineering maintenance vehicle and the network module of the vehicle of the non-master locomotive communicate by using a WTB method.
Preferably, the power supply voltage of the power supply loop of the coil is 110V direct current.
In order to solve the technical problem, the invention further provides an engineering maintenance vehicle which comprises a vehicle body and the control circuit.
According to the control circuit for emergency braking during reconnection of the railway vehicle, the first switch is added in the safety interlocking loop of the engineering maintenance vehicle serving as the master control locomotive, and the on-off of the first switch is controlled by detecting the state of the loop where the emergency trigger device of other vehicles which are not the master control locomotive is located through the control loop, so that the on-off of the safety interlocking loop is realized. Therefore, by the method, emergency braking signals of other vehicles can be transmitted to the safety interlocking circuit of the master control locomotive, so that emergency braking is realized through the safety interlocking circuit of the master control locomotive, the potential safety hazard caused by the fact that the emergency stop of the whole marshalling can only be controlled by the master control locomotive under the complex operation marshalling is effectively solved, the emergency stop of the locomotive can be controlled and ensured under the emergency condition of the whole operation marshalling, and the safety and reliability of operation are improved.
In addition, the engineering maintenance vehicle provided by the invention comprises the control circuit, so that the engineering maintenance vehicle has the effects.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a block diagram of a safety interlock circuit of an engineering maintenance vehicle according to an embodiment of the present invention;
fig. 2(a) is a structural diagram of a control loop according to an embodiment of the present invention;
fig. 2(b) is a structural diagram of a circuit in which an emergency triggering device according to an embodiment of the present invention is located;
fig. 3 is a block diagram of a safety interlock circuit of another engineering maintenance vehicle according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
The core of the invention is to provide a control circuit for emergency braking during reconnection of a railway vehicle and an engineering maintenance vehicle, which are used for improving the driving safety.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
Fig. 1 is a structural diagram of a safety interlock circuit of an engineering maintenance vehicle according to an embodiment of the present invention. As shown in fig. 1, the supply voltage of the safety interlock loop may be 110 vdc, and other links, which are not shown in fig. 1, may be included in the safety interlock loop. The control circuit comprises a first switch 1 arranged on a safety interlocking loop of an engineering maintenance vehicle serving as a master control locomotive and a control loop 2 for controlling the first switch 1 to act, wherein the control loop 2 is connected with a loop where an emergency trigger device of a vehicle serving as a non-master control locomotive is located and is used for controlling the first switch 1 to be disconnected when the emergency trigger device acts.
It should be noted that fig. 1 shows only the position of the first switch 1, and for details of the safety interlock circuit, reference is made to the prior art. That is, fig. 1 is a view of a safety interlock circuit in which a first switch and a control circuit for controlling the first switch are added to the conventional safety interlock circuit.
Normally, a safety interlock loop of an engineering maintenance vehicle as a master locomotive is conducted, namely a first switch is closed; the emergency trigger device of other vehicles which are not the master locomotive does not act, so that the loop where the emergency trigger device is located is a passage, and when the control loop detects that the loop where the emergency trigger device is located is the passage, the first switch keeps a closed state.
When an emergency occurs, the emergency trigger devices of other vehicles are triggered, the loop where the emergency trigger devices are located is disconnected, and then the control loop detects that the loop where the emergency trigger devices are located is disconnected, the first switch is controlled to be changed from a closed state to an open state, so that the safety interlocking loop of the engineering maintenance vehicle is controlled to be disconnected, and emergency braking is achieved.
It is understood that there are many implementations of the control loop, and in order to make the specific structure of the control loop provided by the present invention more clear to those skilled in the art, a specific embodiment is given below. Fig. 2(a) is a structural diagram of a control loop according to an embodiment of the present invention. Fig. 2(b) is a structural diagram of a circuit in which an emergency triggering device according to an embodiment of the present invention is located. As shown in the figure, the control circuit specifically comprises a coil of the time delay relay K and a power supply circuit of the coil of the time delay relay, the anode of the coil is connected with the anode of the power supply and one side (LT 11 end or LT 12 end) of the circuit where the emergency trigger device is located, the cathode of the coil is connected with the cathode of the power supply, and the control end of the coil is connected with the other side (LT 21 end or LT 22 end) of the circuit where the emergency trigger device is located;
the first switch is a normally closed contact of a time delay relay (as shown in fig. 1), the normally closed contact is connected in series on the safety interlocking loop, the control end is changed from an on state to an off state, and after a preset time delay, the normally closed contact is changed from the on state to the off state.
The working process is as follows:
1) under normal conditions, the time delay relay works in a power-off time delay (time delay t1) disconnection mode, and because the A1 and A2 ends of the coil are always connected to a power supply loop (the power supply voltage is direct current 110V), the coil is in a power-on state, and therefore the normally closed contact is always in a closed state, so that the safety interlocking loop is electrified;
2) the emergency trigger device from other vehicles is connected with the coil through the train lines TL1 and TL2 in the manner as above, when a loop where the emergency trigger device is located is conducted, the control end B1 is electrified, and as the relay works in a power-off delay disconnection mode, the normally closed contact cannot act, the safety interlocking loop forms a closed loop, and emergency braking cannot be triggered; when the emergency trigger device acts to cause the circuit to be opened, the control end B1 is electrified and loses electricity to trigger the normally closed contact to act, and the safety interlocking circuit is opened at the moment to apply emergency braking.
As a preferred embodiment, the positive pole of the coil is connected to one side of the loop where the emergency triggering device is located through the train line, and the control end of the coil is connected to the other side of the loop where the emergency triggering device is located through the train line. It should be noted that, in addition to a connection medium, such as a train line, other connection lines may be used, which does not affect the implementation of the present solution. Only in consideration of the use in a kit, the present embodiment employs a train line.
As another preferred embodiment, the predetermined period of time is specifically 0.1 second. It should be noted that the predetermined time is actually the delay time of the delay relay, which can be selected according to actual conditions and is not necessarily 0.1 second, and the shorter the delay time is, the shorter the time for the safety interlock circuit to receive the signal is, the more timely the emergency braking is.
In a preferred embodiment, the supply voltage of the supply circuit of the coil is 110V dc. Because 110V power supply is generally adopted on the locomotive, 110V is selected in the embodiment, so that devices such as a transformer and the like can be omitted, and a power supply on the locomotive can be directly used.
According to the control circuit for emergency braking during reconnection of the railway vehicle, the first switch is added in the safety interlocking loop of the engineering maintenance vehicle serving as the master control locomotive, and the on-off of the first switch is controlled by detecting the state of the loop where the emergency trigger device of other vehicles which are not the master control locomotive is located through the control loop, so that the on-off of the safety interlocking loop is realized. Therefore, by the method, emergency braking signals of other vehicles can be transmitted to the safety interlocking circuit of the master control locomotive, so that emergency braking is realized through the safety interlocking circuit of the master control locomotive, the potential safety hazard caused by the fact that the emergency stop of the whole marshalling can only be controlled by the master control locomotive under the complex operation marshalling is effectively solved, the emergency stop of the locomotive can be controlled and ensured under the emergency condition of the whole operation marshalling, and the safety and reliability of operation are improved.
Example two
Fig. 3 is a block diagram of a safety interlock circuit of another engineering maintenance vehicle according to an embodiment of the present invention. As shown in fig. 3, on the basis of the above embodiment, in this embodiment, the control circuit further includes a second switch 3 connected in series to the safety interlock loop, and the second switch 3 is turned off when the network module of the engineering maintenance vehicle detects that the emergency trigger device of the vehicle other than the master locomotive is triggered.
In specific implementation, other vehicles as non-master locomotives include their own safety interlock circuits and network modules for transmitting communication signals. When a certain vehicle emergency braking device is triggered, the controller on the vehicle can detect the vehicle emergency braking device, the controller sends the signal to the network module of the controller, and the network module is communicated with the network module on the engineering maintenance vehicle serving as the master control locomotive, so that the network module on the engineering maintenance vehicle can be triggered by the emergency braking device, and the second switch connected in series on the safety interlocking loop is controlled to be switched off, so that the safety interlocking loop is switched off, and the emergency braking is realized.
In this embodiment, referring to the description of the first embodiment, the control of the first switch and the control of the second switch are two different control modes, one is a hard-wire control mode, and the other is a network communication control mode, and the two are redundant to each other. The design ensures that the safety interlocking loop can be correctly disconnected, and ensures the safety and reliability.
In a preferred embodiment, the network module of the engineering maintenance vehicle communicates with the network module of the non-master locomotive vehicle in a WTB mode.
Wtb (wire Train bus), twisted wire Train bus. The WTB bus is mainly used for train-level communication, the transmission rate of the WTB bus is 1Mbps, transmission of process data and message data can be realized, and the WTB bus has the biggest characteristic of a train initial operation function (the train initial operation function is that after configuration of train vehicles is changed, the vehicles can be automatically addressed to form a new train topological structure without artificial participation). The WTB bus is specially suitable for train vehicles needing dynamic marshalling. It should be noted that communication may be performed in other manners besides the WTB manner, and details of this embodiment are not described again.
EXAMPLE III
In the above embodiments, the structure and specific implementation of the control circuit are described in detail, and the present embodiment also provides a construction maintenance vehicle including the control circuit. The structure and the working mode of the vehicle body of the engineering maintenance vehicle refer to the prior art, and the connection mode of the control circuit and the safety interlocking circuit on the engineering maintenance vehicle refer to the description of the first embodiment or the second embodiment, which is not described again in this embodiment.
The engineering maintenance vehicle provided by the embodiment comprises a vehicle body and a control circuit, wherein the control circuit is specifically characterized in that a first switch is added in a safety interlocking loop of the engineering maintenance vehicle serving as a master control locomotive, and the on-off of the first switch is controlled by detecting the state of a loop where an emergency trigger device of other vehicles which are not the master control locomotive is located through the control loop, so that the on-off of the safety interlocking loop is realized. Therefore, by the method, emergency braking signals of other vehicles can be transmitted to the safety interlocking circuit of the master control locomotive, so that emergency braking is realized through the safety interlocking circuit of the master control locomotive, the potential safety hazard caused by the fact that the emergency stop of the whole marshalling can only be controlled by the master control locomotive under the complex operation marshalling is effectively solved, the emergency stop of the locomotive can be controlled and ensured under the emergency condition of the whole operation marshalling, and the safety and reliability of operation are improved.
The control circuit for emergency braking during reconnection of the railway vehicle and the engineering maintenance vehicle provided by the invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. A control circuit for emergency braking when a rail vehicle is reconnected is characterized by comprising a first switch and a control circuit, wherein the first switch is arranged on a safety interlocking circuit of an engineering maintenance vehicle serving as a master control locomotive, the control circuit controls the action of the first switch, the control circuit is connected with a circuit where an emergency trigger device of a vehicle serving as a non-master control locomotive is located, and the control circuit is used for controlling the first switch to be disconnected when the emergency trigger device acts;
the control circuit specifically comprises a coil of the time delay relay and a power supply circuit of the coil of the time delay relay, wherein the anode of the coil is connected with the anode of a power supply and one side of a circuit where the emergency trigger device is located, the cathode of the coil is connected with the cathode of the power supply, and the control end of the coil is connected with the other side of the circuit where the emergency trigger device is located;
the first switch is a normally closed contact of the time delay relay, the normally closed contact is connected in series with the safety interlocking loop, the control end is changed from an on state to an off state, and after a preset time delay, the normally closed contact is changed from the on state to the off state;
the safety interlock circuit is connected with the safety interlock circuit in series, and the second switch is disconnected when the network module of the engineering maintenance vehicle detects that the emergency trigger device of the vehicle other than the master locomotive is triggered.
2. The control circuit according to claim 1, wherein the positive electrode of the coil is connected to one side of a loop in which the emergency triggering device is located through a train line, and the control end of the coil is connected to the other side of the loop in which the emergency triggering device is located through the train line.
3. Control circuit according to claim 1, characterized in that the predetermined period of time is in particular 0.1 seconds.
4. The control circuit of claim 1, wherein the network module of the engineering maintenance vehicle and the network module of the vehicle other than the master locomotive communicate using WTB.
5. The control circuit according to any of claims 2-4, characterized in that the supply voltage of the supply circuit of the coil is 110 VDC.
6. An engineering maintenance vehicle comprising a vehicle body, characterized by further comprising a control circuit according to any one of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238014.1A CN109263625B (en) | 2018-10-23 | 2018-10-23 | Control circuit for emergency braking during reconnection of railway vehicle and engineering maintenance vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811238014.1A CN109263625B (en) | 2018-10-23 | 2018-10-23 | Control circuit for emergency braking during reconnection of railway vehicle and engineering maintenance vehicle |
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| CN109263625A CN109263625A (en) | 2019-01-25 |
| CN109263625B true CN109263625B (en) | 2020-11-27 |
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| CN112937629B (en) * | 2021-04-07 | 2022-10-28 | 中车青岛四方机车车辆股份有限公司 | Railway vehicle, passenger emergency braking system thereof and braking control device thereof |
| CN113212400A (en) * | 2021-06-10 | 2021-08-06 | 中车长春轨道客车股份有限公司 | Train emergency braking control circuit and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016840A (en) * | 1989-10-30 | 1991-05-21 | Pulse Electronics, Inc. | Method to authorize a head of train unit to transmit emergency commands to its associated rear unit |
| RU2284928C1 (en) * | 2005-03-30 | 2006-10-10 | Государственное образовательное учреждение высшего профессионального образования Московский государственный технический университет "МАМИ" | Method of and device for automatic braking of train at derailment of car |
| CN203005413U (en) * | 2013-01-06 | 2013-06-19 | 南车株洲电力机车有限公司 | Passenger emergency braking circuit for motor train set |
| DE102013224421A1 (en) * | 2013-11-28 | 2015-05-28 | Siemens Aktiengesellschaft | Brake system and method for controlling a brake system |
| ITUB20153050A1 (en) * | 2015-08-10 | 2017-02-10 | Faiveley Transport Italia Spa | System for the control of a railway train for the transport of goods comprising a plurality of locomotives. |
| CN107235041A (en) * | 2017-06-16 | 2017-10-10 | 中车长春轨道客车股份有限公司 | Rail vehicle rescues brake hard synchronization control circuit and control method |
| CN107867280B (en) * | 2017-11-10 | 2020-06-23 | 中车株洲电力机车有限公司 | Vehicle coupling control circuit, emergency stop braking method and rail transit vehicle |
| CN107856658B (en) * | 2017-11-10 | 2020-06-19 | 中车株洲电力机车有限公司 | Urban rail vehicle coupling control circuit, urban rail vehicle and coupling control method |
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