CN112298151B - Motor train unit parking brake state monitoring method, device and system and motor train unit - Google Patents
Motor train unit parking brake state monitoring method, device and system and motor train unit Download PDFInfo
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- CN112298151B CN112298151B CN202011164720.3A CN202011164720A CN112298151B CN 112298151 B CN112298151 B CN 112298151B CN 202011164720 A CN202011164720 A CN 202011164720A CN 112298151 B CN112298151 B CN 112298151B
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- pressure switch
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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
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
Abstract
The embodiment of the application discloses a method, a device and a system for monitoring a parking brake state of a motor train unit and the motor train unit, wherein in the running process of the motor train unit, a brake control module acquires state information of a pressure sensor and a pressure switch, and the state information is used for reflecting whether the pressure sensor and the pressure switch are in fault or not; the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information; the brake control module acquires target information acquired by the target detection element, and the target information is used for reflecting a parking brake state; the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information; and if the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop. According to the method and the device, the train parking brake state is diagnosed through the redundancy of the pressure sensor and the pressure switch, and the condition that the parking brake state cannot be judged or the false alarm parking brake application is carried out under the fault state of one detection element to cause the emergency brake stop is avoided.
Description
Technical Field
The application relates to the field of motor train unit braking, in particular to a motor train unit parking braking state monitoring method, device and system and a motor train unit.
Background
The parking brake is a brake method for ensuring that a train does not slip when the train is parked, the spring energy storage type parking brake cylinder is adopted for ensuring the long-term storage of the train, the parking brake is relieved when the parking brake cylinder is inflated, and the parking brake is applied after the air is exhausted.
When the parking brake cylinder is abnormally exhausted during operation, the parking brake of the shaft is applied, and the brake disc and the brake pad are damaged, so that the brake control system needs to monitor the pressure of the parking brake cylinder and the parking brake state, when the parking brake is abnormally applied during operation, the emergency brake is automatically triggered to park, and the fault is reported through the listing network.
The existing parking brake state monitoring method cannot correctly reflect the parking brake state, so that false alarm faults can occur, the parking brake cylinder is in the brake state but cannot reflect the brake state, or a train stops due to false alarm, and risks are brought to operation.
Disclosure of Invention
In order to solve the technical problems, the application provides a method, a device and a system for monitoring the parking brake state of a motor train unit and the motor train unit, wherein the parking brake state of the motor train unit is diagnosed through a pressure sensor and a pressure switch in a redundant mode, and the condition that the parking brake state cannot be judged or the parking brake application is misreported to cause the emergency brake stop under the fault state of one detection element is avoided.
The embodiment of the application discloses the following technical scheme:
in a first aspect, an embodiment of the application provides a method for monitoring a parking brake state of a motor train unit, the method is applied to a monitoring system, the monitoring system comprises a pressure sensor, a pressure switch and a brake control module, and the method comprises the following steps:
in the running process of the motor train unit, the brake control module acquires state information of a pressure sensor and a pressure switch, wherein the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not;
the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information;
the brake control module acquires target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state;
the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information;
and if the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop.
Optionally, the pressure sensor is located in the brake control module, and the pressure switch is disposed on a parking brake cylinder pipeline.
Optionally, if the state information indicates that the pressure sensor is faulty, the target detection element is the pressure switch.
Optionally, the step of determining whether the motor train unit is in a parking brake abnormal application state according to the target information in the running process of the motor train unit includes:
if the pressure switch is in a disconnected state, the brake control module determines that the motor train unit is in a parking brake abnormal application state;
and if the pressure switch is in the on state, the brake control module determines that the motor train unit is in a parking brake release state.
Optionally, if the state information indicates that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch.
Optionally, the target information is a pressure value of the parking brake cylinder collected by the pressure sensor and an on or off state of the pressure switch, and the method further includes:
judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result;
judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result;
and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
In a second aspect, an embodiment of the present application provides a device for monitoring a parking brake state of a motor train unit, where the device includes:
the acquiring unit is used for acquiring state information of a pressure sensor and a pressure switch in the running process of the motor train unit, wherein the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not;
a determination unit configured to determine a target detection element from the pressure sensor and the pressure switch according to the state information;
the acquisition unit is further used for acquiring target information acquired by the target detection element, and the target information is used for reflecting a parking brake state;
the judging unit is used for judging whether the motor train unit is in a parking brake abnormal application state or not according to the target information;
and the parking unit is used for triggering emergency braking to park if the motor train unit is determined to be in the parking brake abnormal application state by the judging unit.
Optionally, the pressure sensor is located in the brake control module, and the pressure switch is disposed on a parking brake cylinder pipeline.
Optionally, if the state information indicates that the pressure sensor is faulty, the target detection element is the pressure switch.
Optionally, the target information is an on or off state of the pressure switch, and the determining unit is configured to:
if the pressure switch is in a disconnected state, the brake control module determines that the motor train unit is in a parking brake abnormal application state;
and if the pressure switch is in the on state, the brake control module determines that the motor train unit is in a parking brake release state.
Optionally, if the state information indicates that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch.
Optionally, the target information is a pressure value of the parking brake cylinder collected by the pressure sensor and an on or off state of the pressure switch, and the determining unit is further configured to:
judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result;
judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result;
and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
In a third aspect, an embodiment of the present application provides a motor train unit parking brake state monitoring system, where the system includes a pressure sensor, a pressure switch, and a brake control module:
the pressure sensor and the pressure switch are used for acquiring information for reflecting a parking brake state;
the brake control module is used for acquiring state information of a pressure sensor and a pressure switch in the running process of the motor train unit, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not; determining a target detection element from the pressure sensor and the pressure switch according to the status information; acquiring target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; judging whether the motor train unit is in a parking brake abnormal application state or not according to the target information; and if the motor train unit is determined to be in the parking brake abnormal application state, triggering emergency brake to stop.
Optionally, the pressure sensor is located in the brake control module, and the pressure switch is disposed on a parking brake cylinder pipeline.
Optionally, if the state information indicates that the pressure sensor is faulty, the target detection element is the pressure switch.
Optionally, the target information is an on-off state of the pressure switch, and the brake control module is configured to determine that the motor train unit is in a parking brake abnormal application state if the pressure switch is in the off state;
and if the pressure switch is in the on state, the brake control module determines that the motor train unit is in a parking brake release state.
Optionally, if the state information indicates that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch.
Optionally, the target information is a pressure value of a parking brake cylinder collected by the pressure sensor and an on or off state of the pressure switch, and the brake control module is configured to:
judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result;
judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result;
and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
In a fourth aspect, an embodiment of the application provides a motor train unit, which includes the parking brake state monitoring system of any one of the third aspects.
According to the technical scheme, the method is applied to a monitoring system, the monitoring system comprises a pressure sensor, a pressure switch and a brake control module, in the running process of the motor train unit, the brake control module acquires state information of the pressure sensor and the pressure switch, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not; the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information; the brake control module acquires target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information; and if the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop. According to the method and the device, the parking brake state of the train is diagnosed through the redundancy of the pressure sensor and the pressure switch, and the condition that the parking brake state cannot be judged or the false alarm parking brake application is carried out under the fault state of one detection element to cause the emergency brake stop is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a structural diagram of a motor train unit parking brake state monitoring system provided in an embodiment of the present application;
FIG. 2 is a flowchart of a method for monitoring a parking brake state of a motor train unit according to an embodiment of the present application;
fig. 3 is a structural diagram of a motor train unit parking brake state monitoring device provided in the embodiment of the present application.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings.
In the related technology, a single pressure sensor or a pressure switch is adopted to monitor the parking brake state, once the pressure sensor or the pressure switch fails, the parking brake state cannot be correctly reflected, so that a false alarm fault occurs, the parking brake cylinder is possibly in the brake state but cannot be reflected, or the train stops due to the false alarm, and the risk is brought to the operation.
Therefore, the embodiment of the application provides a method, a device and a system for monitoring the parking brake state of the motor train unit and the motor train unit, the parking brake state of the train is diagnosed through the pressure sensor and the pressure switch in a redundant mode, and the condition that the parking brake state cannot be judged or the parking brake application is misreported to cause the emergency brake stop under the fault state of one detection element is avoided.
The method for monitoring the parking brake state of the motor train unit can be applied to a monitoring system, wherein the monitoring system comprises a pressure sensor, a pressure switch and a brake control module, and the pressure sensor and the pressure switch are used for acquiring information for reflecting the parking brake state;
the brake control module is used for acquiring state information of a pressure sensor and a pressure switch, and the state information is used for showing whether the pressure sensor and the pressure switch are in failure or not; determining a target detection element from the pressure sensor and the pressure switch according to the status information; acquiring target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; judging whether the motor train unit is in a parking brake abnormal application state or not according to the target information in the running process of the motor train unit; and if the motor train unit is determined to be in the parking brake abnormal application state, triggering emergency brake to stop.
In this embodiment, the pressure sensor may be located in the brake control module and the pressure switch may be located on the parking brake cylinder line. Referring to fig. 1, fig. 1 shows a structural diagram of a parking brake state monitoring system of a motor train unit, which can be applied to the motor train unit, wherein the parking brake control is realized in the system according to the following principle: the total wind pressure passes through a pressure reducing valve 101 (the set pressure is 600kPa), is throttled and contracted and then reaches a double-pulse electromagnetic valve 102 for parking braking. When the double-pulse electromagnetic valve 102 receives a parking brake release instruction, compressed air enters the parking brake cylinder 103 to release parking brake, and when the double-pulse electromagnetic valve 102 receives a parking brake application instruction, the compressed air in the parking brake cylinder 103 is discharged to apply parking brake.
Optionally, based on the monitoring system shown in fig. 1, if the status information indicates that the pressure sensor 104 fails, the target detection element is the pressure switch 106.
In this case, the target information is an on or off state of the pressure switch 106, and the brake control module 105 is configured to determine that the motor train unit is in a parking brake abnormal application state if the pressure switch 106 is in the off state; if the pressure switch 106 is in the on state, the brake control module 105 determines that the motor train unit is in a parking brake release state.
Optionally, if the state information indicates that the pressure sensor 104 and the pressure switch 106 are normal, the target detection element is the pressure sensor 104 and the pressure switch 106.
In this case, the target information is the pressure value of the parking brake cylinder collected by the pressure sensor 104 and the on or off state of the pressure switch 106, and the brake control module 105 is configured to:
judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result;
judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch 106 to obtain a second judgment result;
and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
The method for monitoring the parking brake state of the motor train unit provided by the embodiment of the application is described below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for monitoring a parking brake state of a motor train unit, which may be implemented based on the monitoring system illustrated in fig. 1, and the method includes:
s201, in the running process of the motor train unit, the brake control module acquires state information of a pressure sensor and a pressure switch, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not.
In order to avoid the situation that the parking brake state cannot be correctly reflected due to the fact that a single pressure sensor or a pressure switch breaks down when monitoring the parking brake state, the parking brake cylinder is in the brake state but cannot be reflected, or the train stops due to false alarm, the parking brake state of the train is diagnosed through the pressure sensor and the pressure switch in a redundancy mode, and the possibility that the parking brake state cannot be correctly reflected is reduced. Whether the motor train unit is in the running process can be judged according to the speed of the motor train unit, and if the speed of the motor train unit is larger than a preset threshold value, for example, 5km/h, the motor train unit is determined to be in the running process.
In one possible implementation, the pressure sensor is located in the brake control module and the pressure switch is disposed on a parking brake cylinder line.
S202, the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information.
In this embodiment, the status information of the pressure sensor and the pressure switch can be monitored, so that it can be ensured that when the pressure sensor or the pressure switch fails, another detection element (the pressure sensor or the pressure switch may be referred to as a detection element) is selected as a target detection element as a basis for determining the release state.
In a possible implementation manner, the state information may be represented by whether the pressure sensor or the pressure switch sends a fault prompt, if the pressure sensor sends the fault prompt, it is indicated that the pressure sensor is in a fault state, that is, the state information represents that the pressure sensor has a fault, and the determined target detection element is the pressure switch, that is, the on-off state of the pressure switch may be subsequently used as a basis for determining the parking brake state.
If neither the pressure sensor nor the pressure switch gives a fault prompt, that is, the state information shows that the pressure sensor and the pressure switch are normal at the moment, the determined target detection elements are the pressure sensor and the pressure switch, that is, information collected by the pressure sensor and the pressure switch, such as a pressure value of a parking brake cylinder collected by the pressure sensor and an on-off state of the pressure switch, can be subsequently used as a basis for judging a parking brake state.
The pressure sensor can acquire the pressure values of the parking brake cylinder at different moments in real time, and has the capacity of acquiring continuous pressure values. The on or off state of the pressure switch can be marked by 1 or 0, wherein the 0 marks that the pressure switch is in the off state, and the 1 marks that the pressure switch is in the on state, and under the normal condition, when the pressure value of the parking brake cylinder is reduced to a certain threshold value, such as 480kPa, the pressure switch is switched from the on state to the off state, and the motor train unit is in the parking brake abnormal application state; when the pressure value of the parking brake cylinder rises to a certain threshold value, such as 480kPa, the pressure switch is switched from the off state to the on state, and the motor train unit is in a parking brake release state.
S203, the braking control module acquires target information acquired by the target detection element, and the target information is used for reflecting a parking braking state.
Different target detection elements acquire different target information. In the first case, if the target detection element is the pressure switch, the target information is the on or off state of the pressure switch; in a second case, if the target detection element is the pressure sensor and the pressure switch, the target information is a pressure value of the parking brake cylinder collected by the pressure sensor and an on or off state of the pressure switch.
And S204, the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information.
Different target detection elements are adopted, the obtained target information is different, and the mode for judging whether the motor train unit is in the parking brake abnormal application state is also different. In the first case, the manner of determining whether the motor train unit is in the parking brake abnormal application state may be that, if the pressure switch is in the off state, for example, the obtained target information is the identifier 0, the brake control module determines that the motor train unit is in the parking brake abnormal application state; if the pressure switch is in an on state, for example, the acquired target information is an identifier 1, the brake control module determines that the motor train unit is in a parking brake release state.
In some cases, the pressure sensor or pressure switch may have problems that may not be manifested by status information. For example, the pressure value collected by the pressure sensor is 420kPa, but the actual pressure value is 405kPa, and in a normal case, when the pressure value is less than 410kPa, it is determined that the parking brake is in an abnormal application state, otherwise, it is determined that the parking brake is in a release state. Due to inaccuracy of the pressure value acquired by the pressure sensor, the motor train unit is judged wrongly whether the motor train unit is in the parking brake abnormal application state or not. Therefore, in order to avoid the above problems, when it is determined that the pressure sensor and the pressure switch are not in failure through the state information, and whether the motor train unit is in the parking brake abnormal application state or not is judged according to the pressure value of the parking brake cylinder collected by the pressure sensor and the on or off state of the pressure switch (namely, in the second case), whether the motor train unit is in the parking brake abnormal application state or not can be judged according to the pressure value of the parking brake cylinder, so as to obtain a first judgment result; judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result; and determining whether the first judgment result is consistent with the second judgment result, and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt. The fault prompt can prompt that the states of the pressure switch and the pressure sensor are inconsistent so that a worker can diagnose the parking brake state by other methods in time and take measures in time.
And S205, if the motor train unit is determined to be in the parking brake abnormal application state, triggering emergency brake to stop by the brake control module.
And when the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop, and simultaneously reports the fault through the train network.
According to the technical scheme, the method is applied to a monitoring system, the monitoring system comprises a pressure sensor, a pressure switch and a brake control module, in the running process of the motor train unit, the brake control module acquires state information of the pressure sensor and the pressure switch, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not; the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information; the brake control module acquires target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information; and if the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop. According to the method and the device, the parking brake state of the train is diagnosed through the redundancy of the pressure sensor and the pressure switch, and the condition that the parking brake state cannot be judged or the false alarm parking brake application is carried out under the fault state of one detection element to cause the emergency brake stop is avoided.
Based on the method for monitoring the parking brake state of the motor train unit provided by the foregoing embodiment, the embodiment provides a device for calculating the highest temperature value of a brake system in the braking process, referring to fig. 3, fig. 3 shows a structural block diagram of the device for monitoring the parking brake state of the motor train unit, and the method comprises the following steps:
the acquiring unit 301 is configured to acquire state information of a pressure sensor and a pressure switch in the running process of the motor train unit, where the state information is used to indicate whether the pressure sensor and the pressure switch are faulty or not;
a determination unit 302 for determining a target detection element from the pressure sensor and the pressure switch according to the state information;
the obtaining unit 301 is further configured to obtain target information acquired by the target detection element, where the target information is used to reflect a parking brake state;
the judging unit 303 is configured to judge whether the motor train unit is in a parking brake abnormal application state according to the target information;
and the parking unit 304 is used for triggering emergency braking to park if the motor train unit is determined to be in the parking brake abnormal application state by the judging unit.
Optionally, the pressure sensor is located in the brake control module, and the pressure switch is disposed on a parking brake cylinder pipeline.
Optionally, if the state information indicates that the pressure sensor is faulty, the target detection element is the pressure switch.
Optionally, the target information is an on or off state of the pressure switch, and the determining unit is configured to:
if the pressure switch is in a disconnected state, the brake control module determines that the motor train unit is in a parking brake abnormal application state;
and if the pressure switch is in the on state, the brake control module determines that the motor train unit is in a parking brake release state.
Optionally, if the state information indicates that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch.
Optionally, the target information is a pressure value of the parking brake cylinder collected by the pressure sensor and an on or off state of the pressure switch, and the determining unit is further configured to:
judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result;
judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result;
and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
According to the technical scheme, the method is applied to a monitoring system, the monitoring system comprises a pressure sensor, a pressure switch and a brake control module, in the running process of the motor train unit, the brake control module acquires state information of the pressure sensor and the pressure switch, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not; the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information; the brake control module acquires target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information; and if the motor train unit is determined to be in the parking brake abnormal application state, the brake control module triggers emergency brake to stop. According to the method and the device, the parking brake state of the train is diagnosed through the redundancy of the pressure sensor and the pressure switch, and the condition that the parking brake state cannot be judged or the false alarm parking brake application is carried out under the fault state of one detection element to cause the emergency brake stop is avoided.
The embodiment of the application also provides a motor train unit, which can comprise any one of the parking brake state monitoring systems in the embodiment corresponding to the figure 1, so that the motor train unit can be ensured not to slip when parked, and the redundant diagnosis of the parking brake state of the train is realized through the pressure sensor and the pressure switch, thereby avoiding the situation that the parking brake state cannot be judged or the false alarm parking brake application is carried out under the fault state of one detection element to cause the emergency brake stop.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium may be at least one of the following media: various media that can store program codes, such as read-only memory (ROM), RAM, magnetic disk, or optical disk.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus and system embodiments, since they are substantially similar to the method embodiments, they are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A method for monitoring the parking brake state of a motor train unit is applied to a monitoring system, the monitoring system comprises a pressure sensor, a pressure switch and a brake control unit, and the method comprises the following steps:
in the running process of the motor train unit, the brake control unit acquires state information of a pressure sensor and a pressure switch, wherein the state information is used for showing whether the pressure sensor and the pressure switch are in failure or not;
the brake control module determines a target detection element from the pressure sensor and the pressure switch according to the state information;
the brake control module acquires target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state;
the brake control module judges whether the motor train unit is in a parking brake abnormal application state or not according to the target information;
if the motor train unit is determined to be in a parking brake abnormal application state, the brake control module triggers emergency braking to stop;
if the state information shows that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch; the target information is a pressure value of a parking brake cylinder acquired by the pressure sensor and the on or off state of the pressure switch, and the method further comprises the following steps: judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result; judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result; and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
2. The method of claim 1, wherein the pressure sensor is located at the brake control module and the pressure switch is disposed on a parking brake cylinder line.
3. The method of claim 1, wherein the target detection element is the pressure switch if the status information indicates a failure of the pressure sensor.
4. The method of claim 3, wherein the target information is an on or off state of the pressure switch, and the determining whether the motor train unit is in a parking brake abnormal application state according to the target information during the operation of the motor train unit comprises:
if the pressure switch is in a disconnected state, the brake control module determines that the motor train unit is in a parking brake abnormal application state;
and if the pressure switch is in the on state, the brake control module determines that the motor train unit is in a parking brake release state.
5. The utility model provides a EMUs parking brake state monitoring device which characterized in that, the device includes:
the acquiring unit is used for acquiring state information of a pressure sensor and a pressure switch in the running process of the motor train unit, wherein the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not;
a determination unit configured to determine a target detection element from the pressure sensor and the pressure switch according to the state information;
the acquisition unit is further used for acquiring target information acquired by the target detection element, and the target information is used for reflecting a parking brake state;
the judging unit is used for judging whether the motor train unit is in a parking brake abnormal application state or not according to the target information;
the parking unit is used for triggering emergency braking to park if the motor train unit is determined to be in a parking brake abnormal application state by the judging unit;
if the state information shows that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch; the target information is a pressure value of a parking brake cylinder acquired by the pressure sensor and the on or off state of the pressure switch; the judging unit is specifically used for judging whether the motor train unit is in a parking brake abnormal application state according to the pressure value of the parking brake cylinder to obtain a first judgment result; judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result; and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
6. The utility model provides a EMUs parking brake state monitored control system which characterized in that, the system includes pressure sensor, pressure switch and brake control module:
the pressure sensor and the pressure switch are used for acquiring information for reflecting a parking brake state;
the brake control module is used for acquiring state information of a pressure sensor and a pressure switch in the running process of the motor train unit, and the state information is used for showing whether the pressure sensor and the pressure switch are in fault or not; determining a target detection element from the pressure sensor and the pressure switch according to the status information; acquiring target information acquired by the target detection element, wherein the target information is used for reflecting a parking brake state; judging whether the motor train unit is in a parking brake abnormal application state or not according to the target information; if the motor train unit is determined to be in the parking brake abnormal application state, triggering emergency brake to stop;
the brake control module is further configured to determine whether the pressure sensor and the pressure switch are normal or not according to the state information, and if the state information indicates that the pressure sensor and the pressure switch are normal, the target detection element is the pressure sensor and the pressure switch; the target information is a pressure value of a parking brake cylinder acquired by the pressure sensor and the on or off state of the pressure switch; judging whether the motor train unit is in a parking brake abnormal application state or not according to the pressure value of the parking brake cylinder to obtain a first judgment result; judging whether the motor train unit is in a parking brake abnormal application state or not according to the on-off state of the pressure switch to obtain a second judgment result; and if the first judgment result is inconsistent with the second judgment result, triggering a fault prompt.
7. The system of claim 6, wherein the pressure sensor is located at the brake control module and the pressure switch is disposed on a parking brake cylinder line.
8. The system of claim 6, wherein the object detection element is the pressure switch if the status information indicates a failure of the pressure sensor.
9. Motor vehicle unit, characterized in that it comprises a parking brake status monitoring system according to any of claims 6 to 8.
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| CN112918510A (en) * | 2021-03-23 | 2021-06-08 | 中车青岛四方机车车辆股份有限公司 | Train control circuit, train and train control method |
| CN113771826B (en) * | 2021-09-29 | 2022-05-31 | 中车长春轨道客车股份有限公司 | Motor train unit parking brake redundancy monitoring device and monitoring method |
| CN113804469B (en) * | 2021-09-30 | 2024-01-12 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle braking state judging system, method, storage medium and equipment |
| CN113895423B (en) * | 2021-11-16 | 2022-12-20 | 中国铁道科学研究院集团有限公司 | Method and device for monitoring accidental application of parking brake |
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| US4487060A (en) * | 1983-05-18 | 1984-12-11 | Glenayre Electronis, Ltd. | Railway brake pressure monitor |
| CN102180165B (en) * | 2011-04-19 | 2013-01-02 | 铁道部运输局 | Method and system for preventing applied accidental parking brake on railway train |
| CA2956532C (en) * | 2014-07-28 | 2018-07-17 | New York Air Brake Llc | Control system for rail car parking brake |
| CN105253134B (en) * | 2015-10-26 | 2018-07-31 | 南车株洲电力机车有限公司 | The monitoring system of locomotive parking brake state |
| CN106080570B (en) * | 2016-08-29 | 2019-06-07 | 中车大连机车车辆有限公司 | Locomotive parking brake control method |
| CN106627555B (en) * | 2016-11-18 | 2019-08-02 | 中车长春轨道客车股份有限公司 | A kind of monitoring of parking brake redundancy and diagnostic system and its control method |
| CN106627650B (en) * | 2016-11-18 | 2018-10-26 | 中车长春轨道客车股份有限公司 | A kind of long-range shielding system of parking brake and control method |
| BR112020000451A2 (en) * | 2017-07-18 | 2020-07-21 | New York Air Brake Llc | parking brake for locomotive |
| CN109050512B (en) * | 2018-07-19 | 2019-12-31 | 上海工程技术大学 | Detection system and detection method for tramcar parking brake fault |
| CN109466532B (en) * | 2018-11-01 | 2020-06-02 | 中车大连机车车辆有限公司 | Locomotive spring parking brake system and alarm device thereof |
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