CN113212400A - Train emergency braking control circuit and method - Google Patents
Train emergency braking control circuit and method Download PDFInfo
- Publication number
- CN113212400A CN113212400A CN202110650109.XA CN202110650109A CN113212400A CN 113212400 A CN113212400 A CN 113212400A CN 202110650109 A CN202110650109 A CN 202110650109A CN 113212400 A CN113212400 A CN 113212400A
- Authority
- CN
- China
- Prior art keywords
- emergency
- loop
- emergency brake
- electromagnetic switch
- execution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims description 24
- 230000001960 triggered effect Effects 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Systems And Boosters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a train emergency braking control circuit and a method, wherein the train emergency braking control circuit comprises an execution loop and a control loop which are associated through an electromagnetic switch; the coil component of the electromagnetic switch is arranged in the control loop, and the contact of the electromagnetic switch is arranged in the execution loop; an emergency braking triggering component is arranged on the control loop, an emergency braking electromagnetic valve serving as a load is arranged on the execution loop, and when the emergency braking triggering component is switched off in a normal operation state, the coil component of the electromagnetic switch is de-energized, the contact of the electromagnetic switch is switched off, so that the execution loop and the control loop are switched off, and the emergency braking is executed. In the scheme, the condition for triggering the emergency brake is separated from the execution loop, so that when the emergency brake triggering component on the control loop triggers the emergency brake, the emergency brake is not influenced by the load current on the execution loop, the influence of the load current on the emergency brake is reduced, and the purpose of improving the control reliability of the emergency brake is achieved.
Description
Technical Field
The invention relates to the technical field of train braking control, in particular to a train emergency braking control circuit and method.
Background
Along with the development of society, the travel demands of people are more and more, and various public transport means are rapidly developed along with the travel demands. The development of urban railway trains as a widely used public transportation has also been made in various aspects.
At present, urban railway trains have certain differences in emergency brake control because of different requirements of different users. In the prior art, the control of the emergency braking circuit is completed by the intermediate relay, but with the increasing of the number of on-line operations of urban railway trains, a common problem occurs in the aspect of emergency braking control, namely with the increasing of the number of marshalling of urban railway trains, the load current on the emergency braking circuit increases, the breaking capacity of the intermediate relay cannot meet the increasing load capacity, so that the service life of the intermediate relay is shortened, faults are easy to occur, and the emergency braking control is seriously caused to occur.
Disclosure of Invention
In view of this, embodiments of the present invention provide a train emergency braking control circuit and method, so as to achieve the purposes of reducing the influence of load current on emergency braking and improving the reliability of emergency braking control.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the first aspect of the embodiment of the invention discloses a train emergency braking control circuit, which comprises an execution loop and a control loop which are associated through an electromagnetic switch;
the coil component of the electromagnetic switch is arranged on the control loop, and the contact of the electromagnetic switch is arranged on the execution loop;
the emergency brake control system is characterized in that an emergency brake triggering component is arranged on the control loop, an emergency brake electromagnetic valve serving as a load is arranged on the execution loop, when the emergency brake triggering component is triggered in a normal operation state, the coil component of the electromagnetic switch is de-energized, the contact of the electromagnetic switch is disconnected, the execution loop and the control loop are disconnected, and the emergency brake electromagnetic valve is de-energized to execute emergency brake.
Optionally, a first emergency button is further disposed on the execution loop;
the positive line and the negative line of the execution loop are connected through an emergency braking electromagnetic valve, and a first emergency button and a contact of the electromagnetic switch are respectively arranged on the positive line and the negative line of the execution loop along the current flow direction;
when the emergency button is triggered, the contacts of the electromagnetic switch on the positive line and the negative line of the execution loop are triggered to be disconnected, the execution loop and the control loop are disconnected, the emergency brake solenoid valve loses electricity, and emergency braking is executed.
Optionally, the emergency braking triggering components are arranged in pairs on the positive line and the negative line of the control circuit.
Optionally, the emergency braking triggering component at least comprises: one or more combinations of a cab activation switch, a driver controller handle emergency position detection switch, a direction handle detection switch, a warning device trigger switch, a total wind pressure trigger switch, a second emergency button, an ATP emergency trigger switch, an overspeed trigger switch, a unhooking detection switch and an obstacle detection switch.
Optionally, the electromagnetic switch includes at least one relay;
the relay coil of the relay is arranged in the control loop, and the normally open contact and the normally closed contact of the relay are arranged in the execution loop.
Optionally, the electromagnetic switch includes a plurality of relays at least, relay coils of the plurality of relays are disposed in the control circuit, and contacts of the plurality of relays are disposed in the execution circuit in a series-parallel connection structure.
Optionally, the electromagnetic switch comprises a contactor.
The second aspect of the embodiment of the invention discloses a train emergency braking control method, which is applicable to the train emergency braking control circuit disclosed by the first aspect of the embodiment of the invention, and the method comprises the following steps:
when an emergency braking trigger component in the control circuit is changed from a closed state to an open state in a normal running state of the train, a coil component of an electromagnetic switch arranged in the control circuit loses power;
and the contact of the electromagnetic switch arranged in the execution loop is disconnected, so that the control loop and the execution loop are disconnected, and the emergency braking electromagnetic valve loses power to execute emergency braking.
Optionally, if a first emergency button is disposed on the execution loop, the method further includes:
when the emergency button is triggered, the contact arranged on the execution loop is disconnected, and the emergency brake solenoid valve loses electricity.
Optionally, the method further includes:
when the emergency brake triggering component in the control circuit is changed from an open state to a closed state, the coil component of the electromagnetic switch arranged in the control circuit is electrified, the contact of the electromagnetic switch arranged in the execution circuit is closed, and emergency braking is relieved.
Based on the train emergency braking control circuit and the method provided by the embodiment of the invention, the train emergency braking control circuit comprises an execution loop and a control loop which are associated through an electromagnetic switch; the coil component of the electromagnetic switch is arranged on the control loop, and the contact of the electromagnetic switch is arranged on the execution loop; the emergency brake control system is characterized in that an emergency brake triggering component is arranged on the control loop, an emergency brake electromagnetic valve serving as a load is arranged on the execution loop, when the emergency brake triggering component is in a normal operation state, the coil component of the electromagnetic switch is de-energized, the contact of the electromagnetic switch is disconnected, the execution loop and the control loop are disconnected, and the emergency brake electromagnetic valve is de-energized to execute emergency brake. In the scheme, the condition for triggering the emergency brake is separated from the execution loop, and when the emergency brake triggering component on the control loop triggers the emergency brake, the emergency brake is not influenced by the load current on the execution loop, so that the aims of reducing the influence of the load current on the emergency brake and improving the control reliability of the emergency brake are fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a train emergency brake control circuit disclosed in an embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit structure in which two relay contacts are connected in series and in parallel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another train emergency brake control circuit disclosed in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another train emergency brake control circuit disclosed in the 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, 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.
It can be known from the background art that as the number of marshalling of urban railway trains increases, the load current on the emergency braking loop increases, and the breaking capacity of the intermediate relay cannot meet the increasing load capacity, so that the service life of the intermediate relay is shortened, the intermediate relay is easy to break down, and the emergency braking control is seriously caused to have problems.
Therefore, the embodiment of the invention discloses a novel train emergency brake control circuit, which arranges condition factors for triggering emergency brake in a control circuit through an execution circuit and a control circuit which are associated with an electromagnetic switch, so that the condition for triggering emergency brake is separated from the execution circuit, and when an emergency brake triggering component on the control circuit triggers emergency brake, the emergency brake control circuit is not influenced by load current on the execution circuit, thereby realizing the purposes of reducing the influence of the load current on the emergency brake and improving the control reliability of the emergency brake. The specific implementation process is illustrated in detail by the following examples.
Fig. 1 is a schematic structural diagram of a train emergency brake control circuit according to an embodiment of the present invention. The train emergency braking control circuit is applied to various trains and comprises an execution loop 10, a control loop 20 and an electromagnetic switch.
The execution circuit 10 and the control circuit 20 are associated by an electromagnetic switch.
The coil member 31 of the electromagnetic switch is provided in the control circuit 20, and the contact 32 of the electromagnetic switch is provided in the actuator circuit 10.
The principle of the electromagnetic switch is as follows: when the coil part 31 of the electromagnetic switch is energized, the contact 32 of the electromagnetic switch is closed; when the coil member 31 of the electromagnetic switch loses power, the contact 32 of the electromagnetic switch is opened.
The control circuit 20 is provided with an emergency brake triggering unit 40, and the execution circuit 10 is provided with an emergency brake solenoid valve 50 as a load.
The positive line of the emergency brake solenoid valve 50 provided as a load in the actuator circuit 10 is the positive line of the actuator circuit 10, and the negative line of the emergency brake solenoid valve 50 is the negative line of the actuator circuit 10.
Optionally, emergency brake actuation components 40 are provided in pairs on the positive and negative lines of control circuit 20.
In a normal operation state, when any one of the emergency brake triggering members 40 on the control circuit 20 is turned off, the coil member 31 of the electromagnetic switch is de-energized, the contact 32 of the electromagnetic switch is opened, the execution circuit 10 and the control circuit 20 are disconnected, and the emergency brake solenoid valve 50 is de-energized to execute emergency braking.
In the embodiment of the invention, the execution loop 10 adopts a double-line double-break design, when the execution loop 10 and the control loop 20 are disconnected during emergency braking, the positive line of the control loop 20 and the negative line of the control loop 20 are simultaneously broken, and the problem that only one line of the positive line or the negative line of the control loop 20 can be disconnected when the contact of the electromagnetic switch is in failure is avoided, so that the safety of emergency braking is improved.
The invention discloses a train emergency braking control circuit based on the embodiment of the invention.
In one implementation, the electromagnetic switch includes at least one relay.
When the relay is specifically provided, a relay coil of the relay is provided in the control circuit 20, and a normally open contact and a normally closed contact of the relay are provided in the execution circuit 10.
When the relay coil of the relay disposed on the control circuit 20 is energized, the normally open contact of the relay disposed on the execution circuit is closed, and the normally closed contact of the relay is opened. Conversely, when the relay coil of the relay disposed on the control circuit 20 loses power, the normally open contact of the relay disposed on the execution circuit is opened, and the normally closed contact of the relay is closed.
In one implementation, the electromagnetic switch includes at least a plurality of relays having relay coils disposed in the control circuit 20 and contacts disposed in the execution circuit 10 in a series-parallel configuration.
Fig. 2 is a schematic diagram of a circuit structure in which two relay contacts are connected in series and in parallel according to an embodiment of the present invention.
In fig. 2, two relays, 4 contacts K1, K2, K3, and K4 are arranged in series-parallel.
In a specific implementation, following the principle of a relay, when a relay coil of the relay is energized, a normally open contact of the relay is closed, and a normally closed contact of the relay is opened. On the contrary, when the relay coil of the relay loses power, the normally open contact of the relay is disconnected, and the normally closed contact of the relay is closed.
According to the power-on or power-off condition of the relay coil, when two relay contacts are connected in series, the breaking voltage is reduced, and the breaking current is improved, so that the breaking capacity of the relay is improved; when two relay contacts are connected in parallel, if one relay breaks down, the other relay can work normally, and therefore the reliability of emergency braking control is further improved.
In one implementation, the electromagnetic switch includes a contactor. Preferably, it may be an electromagnetic contactor. The contactor has a function of cutting off a large load, i.e., a large current. Meanwhile, the contactor has low action times and high power consumption, and the action times can reach the level of dozens of thousands of times under the rated service life.
It should be noted that technicians can select different types of contactors according to different train loads.
Optionally, the emergency brake triggering component 40 may include: one or more combinations of a cab activation switch, a driver controller handle emergency position detection switch, a direction handle detection switch, a warning device trigger switch, a total wind pressure trigger switch, a second emergency button, an ATP emergency trigger switch, an overspeed trigger switch, a unhooking detection switch and an obstacle detection switch.
It should be noted that the number and type of the emergency brake triggering components 40 can be set by the technician as long as the condition factors of the emergency brake triggering are met.
In the embodiment of the invention, the execution loop and the control loop are independently arranged and are related through the electromagnetic switch. The condition factor for triggering the emergency braking is set on the control loop, so that the condition for triggering the emergency braking is separated from the execution loop. In this case, the load on the control circuit is only the coil component of the electromagnetic switch, and the power of the electromagnetic switch is much smaller than that of the emergency brake solenoid valve, and the electromagnetic switch is not affected by the number of train groups, so that the increasing load capacity of trains can be satisfied. When the emergency brake triggering component on the control loop triggers emergency braking, namely the emergency brake triggering component is disconnected in normal operation, the coil component of the electromagnetic switch on the control loop loses electricity, the contact of the electromagnetic switch arranged on the execution loop is disconnected, the execution loop and the control loop are disconnected, the emergency brake electromagnetic valve loses electricity, and the emergency brake is executed. Based on the train emergency braking control circuit disclosed by the embodiment of the invention, the purposes of reducing the influence of load current on emergency braking and improving the control reliability of emergency braking can be realized.
In addition, different electromagnetic switches can be selected according to the load condition and the service life in the embodiment of the invention, so that the emergency braking control reliability is improved, and meanwhile, the contact breaking capacity is improved.
The train emergency brake control circuit disclosed based on the above embodiment of the present invention is, as shown in fig. 3, a schematic structural diagram of another train emergency brake control circuit shown based on fig. 1 in the embodiment of the present invention.
The train emergency braking control circuit specifically comprises: an execution circuit 10, a control circuit 20 and a relay 30.
The execution circuit 10 and the control circuit 20 are associated by an electromagnetic switch.
The relay coil 33 of the relay is provided in the control circuit 20, and the normally open contact 34 and the normally closed contact 35 of the relay are provided in the execution circuit 10.
The control circuit 20 is provided with emergency braking triggering components such as a cab activation switch 41, a driver handle emergency position detection switch 42, a direction handle detection switch 43, a warning device triggering switch 44, a total wind pressure triggering switch 45, a second emergency button 46, an ATP emergency triggering switch 47, an overspeed triggering switch 48, a unhooking detection switch 49, and an obstacle detection switch 50.
In a particular arrangement, cab activation switch 41, operator handle emergency position detection switch 42, directional handle detection switch 43, alerting device trigger switch 44, total wind pressure trigger switch 45, second emergency button 46, ATP emergency trigger switch 47, overspeed trigger switch 48, unhook detection switch 49, and obstacle detection switch 50 are provided in pairs on the positive and negative lines of control circuit 20.
The execution circuit 10 is provided with an emergency brake solenoid valve 50 as a load.
When any one of the emergency braking triggering components of the cab activation switch 41, the driver controller handle emergency position detection switch 42, the direction handle detection switch 43, the warning device triggering switch 44, the total wind pressure triggering switch 45, the second emergency button 46, the ATP emergency triggering switch 47, the overspeed triggering switch 48, the unhooking detection switch 49 and the obstacle detection switch 50 on the control circuit 20 is turned off in a normal operation state, the relay coil 33 of the relay arranged on the control circuit 20 is powered off, the normally open contact 34 of the relay arranged on the execution circuit 10 is turned off, the normally closed contact 35 of the relay is closed, the execution circuit 10 and the control circuit 20 are turned off, and the emergency braking electromagnetic valve 50 is powered off, so that emergency braking is executed.
Here, by way of example:
example 1
The head and the tail of a general train are respectively provided with a cab, under the condition of normal operation of the train, when no cab is activated, a cab activation switch 41 is switched off, at the moment, a relay coil 33 of a relay on a control circuit 20 is powered off, a normally open contact 34 of the relay arranged on an execution circuit 10 is switched off, a normally closed contact 35 of the relay is switched on, so that the execution circuit 10 and the control circuit 20 are switched off, an emergency braking electromagnetic valve 50 is powered off, and emergency braking is executed.
When any one of the locomotive and the tail of the train is activated, the cab activation switch 41 is in a closed state, at the moment, the relay coil 33 of the relay on the control circuit 20 is electrified, the normally open contact 34 of the relay arranged on the execution circuit 10 is closed, and the normally closed contact 35 of the relay is opened, so that the train returns to normal operation.
Example two
In the normal operation of the train, when the overspeed trigger switch 48 is activated, i.e., opened, the relay coil 33 of the relay on the control circuit 20 is de-energized, the normally open contact 34 of the relay provided on the implement circuit 10 is opened, the normally closed contact 35 of the relay is closed, the implement circuit 10 and the control circuit 20 are opened, the emergency brake solenoid valve 50 is de-energized, and emergency braking is performed.
When the overspeed trigger switches 48 are all in the inactive state, i.e., the closed state, at this time, the relay coil 33 of the relay on the control circuit 20 is energized, the normally open contact 34 of the relay provided on the execution circuit 10 is closed, and the normally closed contact 35 of the relay is opened, so that the train returns to normal operation.
When other emergency braking triggering components are activated, corresponding operations are also executed, and the details are not described here.
In the embodiment of the invention, the emergency brake triggering component for triggering the emergency brake condition is arranged on the control loop and is designed separately from the execution loop, and when the emergency brake triggering component on the control loop triggers the emergency brake, the emergency brake triggering component is not influenced by the load current on the execution loop, so that the aims of reducing the influence of the load current on the emergency brake and improving the control reliability of the emergency brake can be fulfilled.
The train emergency brake control circuit disclosed based on the above embodiment of the present invention is, as shown in fig. 4, a schematic structural diagram of another train emergency brake control circuit shown based on fig. 1 in the embodiment of the present invention.
The train emergency brake control circuit comprises an execution circuit 10, a control circuit 20 and an electromagnetic switch.
The execution circuit 10 and the control circuit 20 are associated by an electromagnetic switch.
The coil member 31 of the electromagnetic switch is provided in the control circuit 20, and the contact 32 of the electromagnetic switch is provided in the actuator circuit 10.
The control circuit 20 is provided with an emergency brake triggering part 40, and the execution circuit 10 is provided with an emergency brake solenoid valve 50 and a first emergency button 60 as loads.
The positive line and the negative line of the actuator circuit 10 are connected by the emergency brake solenoid valve 50, and the first emergency button 60 and the contact 32 of the electromagnetic switch are provided on the positive line and the negative line of the actuator circuit 10, respectively, in the current flow direction.
The positive line of the emergency brake solenoid valve 50 provided as a load in the actuator circuit 10 is the positive line of the actuator circuit 10, and the negative line of the emergency brake solenoid valve 50 is the negative line of the actuator circuit 10.
Optionally, emergency brake actuation components 40 are provided in pairs on the positive and negative lines of control circuit 20.
In a normal operation state, when any one of the emergency brake triggering members 40 on the control circuit 20 is turned off, the coil member 31 of the electromagnetic switch is de-energized, the contact 32 of the electromagnetic switch is opened, the execution circuit 10 and the control circuit 20 are disconnected, and the emergency brake solenoid valve 50 is de-energized to execute emergency braking.
When the first emergency button 60 is closed, the contacts 32 of the electromagnetic switch on the positive line and the negative line of the execution circuit 10 are triggered to be opened, so that the execution circuit 10 and the control circuit 20 are disconnected, the emergency brake solenoid valve 50 is de-energized, and emergency braking is executed.
In the embodiment of the invention, the emergency brake triggering part for triggering the emergency brake condition is arranged on the control loop and is designed separately from the execution loop, and the execution loop adopts a double-line double-break design, so that when the emergency brake is executed, the control loop and the execution loop can be broken, the influence of the load current on the emergency brake can be avoided, and the purposes of reducing the influence of the load current on the emergency brake and improving the control reliability of the emergency brake can be realized.
Based on the train emergency braking control circuit disclosed by the embodiment of the invention, the embodiment of the invention also discloses a train emergency braking control method which is suitable for the train emergency braking control circuit disclosed by the embodiment, and the method mainly comprises the following steps:
s501: when an emergency braking trigger component in the control circuit is changed from a closed state to an open state in a normal running state of the train, a coil component of an electromagnetic switch arranged in the control circuit loses power;
s502: and the contact of the electromagnetic switch arranged in the execution loop is disconnected, the emergency braking electromagnetic valve loses electricity, and the emergency braking is executed.
In one embodiment, if the execution loop is provided with a first emergency button, the method further comprises:
when the emergency button is triggered, the contact of the electromagnetic switch arranged on the execution loop is disconnected, so that the control loop and the execution loop are disconnected, the emergency brake electromagnetic valve is powered off, and emergency braking is executed.
It should be noted that the first emergency button normally has its contacts closed, and when the first emergency button is triggered or activated, the contacts are opened, thereby opening the control circuit and the execution circuit.
In one embodiment, the method further comprises:
when the emergency brake triggering component in the control circuit is changed from an open state to a closed state, the coil component of the electromagnetic switch arranged in the control circuit is electrified, the contact of the electromagnetic switch arranged in the execution circuit is closed, and emergency braking is relieved.
In the embodiment of the present invention, based on the double-break design of the actuator circuit, when the emergency braking triggering unit provided on the control circuit is triggered, the coil unit of the electromagnetic switch on the control circuit is de-energized, and the contact of the electromagnetic switch provided on the actuator circuit is opened, so that the actuator circuit and the control circuit are disconnected, and emergency braking is performed. The method not only can reduce the influence of load current on emergency braking, but also can improve the control reliability of the emergency braking.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The train emergency braking control circuit is characterized by comprising an execution loop and a control loop which are related through an electromagnetic switch;
the coil component of the electromagnetic switch is arranged on the control loop, and the contact of the electromagnetic switch is arranged on the execution loop;
the emergency brake control system is characterized in that an emergency brake triggering component is arranged on the control loop, an emergency brake electromagnetic valve serving as a load is arranged on the execution loop, when the emergency brake triggering component is triggered in a normal operation state, the coil component of the electromagnetic switch is de-energized, the contact of the electromagnetic switch is disconnected, the execution loop and the control loop are disconnected, and the emergency brake electromagnetic valve is de-energized to execute emergency brake.
2. The circuit of claim 1, wherein a first emergency button is further disposed on the execution loop;
the positive line and the negative line of the execution loop are connected through an emergency braking electromagnetic valve, and a first emergency button and a contact of the electromagnetic switch are respectively arranged on the positive line and the negative line of the execution loop along the current flow direction;
when the emergency button is triggered, the contacts of the electromagnetic switch on the positive line and the negative line of the execution loop are triggered to be disconnected, the execution loop and the control loop are disconnected, the emergency brake solenoid valve loses electricity, and emergency braking is executed.
3. The circuit of claim 1, wherein the emergency brake triggering components are provided in pairs on positive and negative lines of the control loop.
4. The circuit of claim 1, wherein the emergency brake triggering component comprises at least: one or more combinations of a cab activation switch, a driver controller handle emergency position detection switch, a direction handle detection switch, a warning device trigger switch, a total wind pressure trigger switch, a second emergency button, an ATP emergency trigger switch, an overspeed trigger switch, a unhooking detection switch and an obstacle detection switch.
5. The circuit according to any of claims 1 to 4, wherein said electromagnetic switch comprises at least one relay;
the relay coil of the relay is arranged in the control loop, and the normally open contact and the normally closed contact of the relay are arranged in the execution loop.
6. The circuit of any of claims 1-4, wherein the electromagnetic switch comprises at least a plurality of relays having relay coils disposed in the control circuit and having contacts disposed in the implement circuit in a series-parallel configuration.
7. The circuit of any of claims 1-4, wherein the electromagnetic switch comprises a contactor.
8. A train emergency brake control method applied to the train emergency brake control circuit according to any one of claims 1 to 7, the method comprising:
when an emergency braking trigger component in the control circuit is changed from a closed state to an open state in a normal running state of the train, a coil component of an electromagnetic switch arranged in the control circuit loses power;
and the contact of the electromagnetic switch arranged in the execution loop is disconnected, so that the control loop and the execution loop are disconnected, and the emergency braking electromagnetic valve loses power to execute emergency braking.
9. The method of claim 8, wherein if the execution loop has a first emergency button, further comprising:
when the emergency button is triggered, the contact arranged on the execution loop is disconnected, and the emergency brake solenoid valve loses electricity.
10. The method of claim 8, further comprising:
when the emergency brake triggering component in the control circuit is changed from an open state to a closed state, the coil component of the electromagnetic switch arranged in the control circuit is electrified, the contact of the electromagnetic switch arranged in the execution circuit is closed, and emergency braking is relieved.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110650109.XA CN113212400A (en) | 2021-06-10 | 2021-06-10 | Train emergency braking control circuit and method |
| PCT/CN2021/127001 WO2022257334A1 (en) | 2021-06-10 | 2021-10-28 | Train emergency braking control circuit and method |
| AU2021269344A AU2021269344B2 (en) | 2021-06-10 | 2021-11-17 | Circuit and method for controlling emergency braking for train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110650109.XA CN113212400A (en) | 2021-06-10 | 2021-06-10 | Train emergency braking control circuit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113212400A true CN113212400A (en) | 2021-08-06 |
Family
ID=77080216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110650109.XA Pending CN113212400A (en) | 2021-06-10 | 2021-06-10 | Train emergency braking control circuit and method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113212400A (en) |
| AU (1) | AU2021269344B2 (en) |
| WO (1) | WO2022257334A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257334A1 (en) * | 2021-06-10 | 2022-12-15 | 中车长春轨道客车股份有限公司 | Train emergency braking control circuit and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110014218A (en) * | 2008-07-24 | 2011-02-10 | 미쓰비시덴키 가부시키가이샤 | Train braking device |
| CN102596670A (en) * | 2009-10-28 | 2012-07-18 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Emergency brake unit of a rail vehicle |
| US20140081487A1 (en) * | 2012-09-20 | 2014-03-20 | Wabtec Holding Corp. | System and Method for Addressing a Pneumatic Emergency in a Helper Locomotive |
| CN109263625A (en) * | 2018-10-23 | 2019-01-25 | 中车株洲电力机车有限公司 | The control circuit and engineering maintenance vehicle of emergency braking a kind of rail vehicle joins again when |
| CN110816505A (en) * | 2019-11-18 | 2020-02-21 | 中车南京浦镇车辆有限公司 | Emergency brake extension control method based on vehicle coupling |
| CN112026735A (en) * | 2020-08-05 | 2020-12-04 | 中车青岛四方机车车辆股份有限公司 | Train emergency braking control device and train |
| CN112829733A (en) * | 2019-11-22 | 2021-05-25 | 中车唐山机车车辆有限公司 | Emergency braking control device, emergency braking system and railway vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064251A (en) * | 1990-04-02 | 1991-11-12 | Westinghouse Air Brake Company | Electropneumatic air brake control system for railway vehicles |
| DE10001359C2 (en) * | 2000-01-14 | 2001-11-22 | Siemens Ag | 0 train safety loop |
| CN201816588U (en) * | 2010-09-28 | 2011-05-04 | 南车株洲电力机车有限公司 | Safe interlocking circuit based on electric breakdown emergency mode |
| 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 |
-
2021
- 2021-06-10 CN CN202110650109.XA patent/CN113212400A/en active Pending
- 2021-10-28 WO PCT/CN2021/127001 patent/WO2022257334A1/en active Application Filing
- 2021-11-17 AU AU2021269344A patent/AU2021269344B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110014218A (en) * | 2008-07-24 | 2011-02-10 | 미쓰비시덴키 가부시키가이샤 | Train braking device |
| CN102596670A (en) * | 2009-10-28 | 2012-07-18 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Emergency brake unit of a rail vehicle |
| US20140081487A1 (en) * | 2012-09-20 | 2014-03-20 | Wabtec Holding Corp. | System and Method for Addressing a Pneumatic Emergency in a Helper Locomotive |
| CN109263625A (en) * | 2018-10-23 | 2019-01-25 | 中车株洲电力机车有限公司 | The control circuit and engineering maintenance vehicle of emergency braking a kind of rail vehicle joins again when |
| CN110816505A (en) * | 2019-11-18 | 2020-02-21 | 中车南京浦镇车辆有限公司 | Emergency brake extension control method based on vehicle coupling |
| CN112829733A (en) * | 2019-11-22 | 2021-05-25 | 中车唐山机车车辆有限公司 | Emergency braking control device, emergency braking system and railway vehicle |
| CN112026735A (en) * | 2020-08-05 | 2020-12-04 | 中车青岛四方机车车辆股份有限公司 | Train emergency braking control device and train |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257334A1 (en) * | 2021-06-10 | 2022-12-15 | 中车长春轨道客车股份有限公司 | Train emergency braking control circuit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022257334A1 (en) | 2022-12-15 |
| AU2021269344A1 (en) | 2023-01-05 |
| AU2021269344B2 (en) | 2023-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109109851B (en) | Railway vehicle emergency braking safety loop circuit and railway vehicle | |
| CN108791259B (en) | Train redundant braking device and method | |
| CN104412192B (en) | Switching device | |
| CN105967016B (en) | A kind of monitoring device of band-type brake detection switch | |
| CN109515197B (en) | Rail transit vehicle and high-speed circuit breaker on-off control method thereof | |
| CN106379174A (en) | Pantograph control device and railway vehicle | |
| CZ2021237A3 (en) | Garage power supply protection system | |
| CN110654238B (en) | New energy vehicle electrical system and safe power failure control method | |
| CN113212400A (en) | Train emergency braking control circuit and method | |
| CN110525224A (en) | Train pantograph logic and intelligent control system based on intelligent control unit | |
| CN110696867B (en) | Rail transit vehicle magnetic track brake control circuit | |
| CN112277998A (en) | Train is rescue control circuit even hung | |
| CN211001299U (en) | Emergency braking expansion device for urban rail vehicle | |
| CN109693689B (en) | Safety control system and method for traction cut-off | |
| CN110615015B (en) | Magnetic track braking logic control system for rail transit vehicle | |
| US11770077B2 (en) | Dual start control circuit for auxiliary inverters of railway vehicle | |
| CN211001349U (en) | Rail transit vehicle magnetic track brake logic control system | |
| CN212709362U (en) | Train comprising emergency braking control system | |
| CN107200002A (en) | The stopping brake control device and its control method of a kind of electri forklift | |
| CN112848897B (en) | High-voltage holding circuit for end changing of tramcar, high-voltage holding control method and application | |
| CN205810731U (en) | Control and protective switch | |
| CN214607511U (en) | Rail transit air conditioner control device and control system | |
| CN212022641U (en) | Rail vehicle and ventilation control system thereof | |
| CN112297962A (en) | Bus circuit breaker control method for metro vehicle in double current receiving mode through dead zone | |
| CN210062690U (en) | Subway vehicle emergency stop circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |