CN117360454A - Shunting locomotive braking device, control method thereof and shunting locomotive - Google Patents
Shunting locomotive braking device, control method thereof and shunting locomotive Download PDFInfo
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- CN117360454A CN117360454A CN202311413093.6A CN202311413093A CN117360454A CN 117360454 A CN117360454 A CN 117360454A CN 202311413093 A CN202311413093 A CN 202311413093A CN 117360454 A CN117360454 A CN 117360454A
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000002159 abnormal effect Effects 0.000 claims description 21
- 238000012806 monitoring device Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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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
- 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
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
- B60T8/1705—Braking or traction control means specially adapted for particular types of vehicles for rail vehicles
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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
- 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
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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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
- 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
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
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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
- 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
- B60T8/321—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 deceleration
- B60T8/3235—Systems specially adapted for rail vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/10—Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
-
- 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
- B61H11/14—Combinations of different types of brakes, e.g. brake blocks acting on wheel-rim combined with disc brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H9/00—Brakes characterised by or modified for their application to special railway systems or purposes
- B61H9/003—Brakes characterised by or modified for their application to special railway systems or purposes for shunting operation or for narrow gauge trains
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
Abstract
The application relates to the field of vehicle braking, and discloses a shunting locomotive braking device, a control method thereof and a shunting locomotive, wherein the shunting locomotive comprises the following components: a controller, an electric brake device, and an air brake device comprising an air brake controller and an air brake apply valve; the controller is connected with the electric brake device and the air brake action valve to control the electric brake device to work and determine a braking force difference value when the braking force requirement value is larger than a braking force threshold value, and control the air brake action valve to work according to the braking force difference value so that the air brake device outputs braking force corresponding to the braking force difference value. The present application controls the braking of a train by acquiring a braking force demand value and controlling an electric brake device and an air brake apply valve so that they work in concert to output the braking force demand value. The electric braking device is used for providing braking force as far as possible, so that the braking force provided by the air braking device is reduced, and the loss of the brake shoe of the train is reduced on the premise of ensuring the safety braking of the train.
Description
Technical Field
The application relates to the field of vehicle braking, in particular to a shunting locomotive braking device, a control method thereof and a shunting locomotive.
Background
Most of the braking devices used in the conventional shunting locomotives are air-electricity combined braking devices. The air-electricity combined braking device comprises an air braking device and an electric braking device, wherein the braking force of the air braking device is far greater than that of the electric braking device. The air brake device and the electric brake device are controlled by an automatic brake controller, when the required braking force is small, the electric brake device is started to brake, and when the required braking force is large, the air brake device is started to brake and the electric brake device is cut off.
The shunting locomotive is a locomotive for shunting operations such as train grouping, disassembling, line transferring, vehicle taking and delivering and the like, and because of special working tasks, frequent starting and stopping are required, the required braking force is larger, and fig. 1 is a structural diagram of a braking curve provided by the embodiment of the application, as shown in fig. 1, the braking force provided by an electric braking device cannot envelop the maximum braking force required by the shunting locomotive, and the electric braking device is usually required to be cut off and an air braking device is used for braking, so that the abrasion of a locomotive brake shoe is larger.
Therefore, how to provide a new shunting locomotive braking device to reduce the abrasion of locomotive brake shoes on the basis of ensuring safe braking is a problem which needs to be solved by the technicians in the field.
Disclosure of Invention
The utility model provides a solve among the prior art when electric braking force is different only use air brake device braking to lead to the great problem of locomotive brake shoe wearing and tearing, consequently, this application provides a shunting locomotive arresting gear and control method and shunting locomotive to reduce locomotive brake shoe wearing and tearing under the prerequisite of guaranteeing train safety braking.
To solve this technical problem, the present application provides a shunting locomotive braking device, including:
a controller, an electric brake device and an air brake device; wherein the air brake device comprises an air brake controller and an air brake action valve;
the controller is also connected with the electric brake device to control the electric brake device to output a braking force corresponding to the braking force demand value when the braking force demand value is not greater than a braking force threshold value;
the controller is also connected with the air brake action valve, so as to control the electric brake device to output the maximum braking force and determine a braking force difference value when the braking force requirement value is larger than the braking force threshold value, and control the air brake action valve to work according to the braking force difference value, so that the air brake device outputs the braking force corresponding to the braking force difference value; wherein the braking force difference is a difference between the braking force demand value and a maximum braking force of the electric brake device.
Preferably, the method further comprises: a speed sensor and a braking force distribution valve;
the speed sensor is connected with the controller to acquire a speed detection value and send the speed detection value to the controller;
the controller is further connected with the braking force distribution valve to send a braking switching signal and the braking force demand value to the braking force distribution valve when the speed detection value is greater than a speed threshold value;
the braking force distribution valve is connected with the electric braking device and the air braking device so as to control the electric braking device to be closed and control the air braking device to output the braking force required value when the braking switching signal and the braking force required value are acquired.
Preferably, the controller includes a brake control unit and a central control unit;
the brake control unit is connected with the brake operation device to acquire the brake request information sent by the driver and send the brake request information to the central control unit;
the central control unit is connected with the electric braking device and the air braking action valve.
Preferably, the brake monitoring device is further included;
the brake monitoring device is connected with the electric brake device and the air brake device to acquire brake state information of the electric brake device and the air brake device;
the brake monitoring device is also connected with the controller to acquire a brake device control instruction sent by the controller and judge whether the brake state information is consistent with the brake device control instruction;
and if the braking device abnormality information is inconsistent, sending the braking device abnormality information to the controller.
Preferably, the system further comprises an alarm unit;
the controller is connected with the alarm unit to control the alarm unit to give an alarm when the abnormal information of the braking device is acquired.
Preferably, the system also comprises a CAN interface card;
the brake monitoring device is communicated with the CAN interface card through a double-way CAN bus, and the controller is communicated with the CAN interface card through a USB bus.
In order to solve the technical problem, the application also provides a control method of the shunting locomotive braking device, which is applied to the shunting locomotive braking device comprising a controller, an electric braking device and an air braking device, wherein the air braking device comprises an air braking controller and an air braking action valve; the controller is connected with the electric braking device and the air braking action valve; the control method of the shunting locomotive braking device comprises the following steps:
acquiring and analyzing brake request information to acquire a brake force demand value, and judging whether the brake force demand value is greater than a brake force threshold value;
if the braking force demand value is not greater than the braking force threshold value, controlling the electric brake device to output the braking force demand value;
if the braking force required value is larger than the braking force threshold value, controlling the electric braking device to output the maximum braking force, determining a braking force difference value, and controlling the air braking action valve to work according to the braking force difference value so as to enable the air braking device to output the braking force corresponding to the braking force difference value; wherein the braking force difference is a difference between the braking force demand value and a maximum braking force of the electric brake device.
Preferably, before the step of determining whether the braking force demand value is greater than a braking force threshold value, the method further includes:
acquiring a speed detection value sent by a speed sensor;
judging whether the speed detection value is larger than a speed threshold value or not;
and if the speed threshold value is larger than the speed threshold value, generating a brake switching signal and sending the brake switching signal and the braking force required value to a braking force distribution valve so that the braking force distribution valve controls the electric braking device to be closed and controls the air braking device to output the braking force required value.
Preferably, the method further comprises:
acquiring abnormal information of the brake devices sent by each brake monitoring device;
analyzing the abnormal information of the braking device to obtain identity information of the abnormal braking device;
generating a log file according to the identity information of the abnormal braking device, so that a manager can maintain the abnormal braking device according to the log file.
In order to solve the technical problem, the application also provides a shunting locomotive, which comprises the shunting locomotive braking device.
The application provides a shunting locomotive arresting gear includes: a controller, an electric brake device and an air brake device; wherein the air brake device comprises an air brake controller and an air brake action valve; the controller is connected with the electric brake device to control the electric brake device to output a braking force demand value when the braking force demand value is not greater than a braking force threshold value; the controller is also connected with the air brake action valve so as to control the electric brake device to output the maximum braking force and determine a braking force difference value when the braking force requirement value is larger than the braking force threshold value, and control the air brake action valve to work according to the braking force difference value so as to enable the air brake device to output the braking force corresponding to the braking force difference value; the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device. Therefore, the technical scheme provided by the application controls the train brake by acquiring the braking force demand value and controlling the electric braking device and the air braking action valve to make the electric braking device and the air braking action valve work cooperatively to output the braking force demand value. Compared with the prior art, in the technical scheme provided by the application, the electric braking device is used for providing the braking force as far as possible, so that the braking force provided by the air braking device is reduced, and the loss of the brake shoe of the train is reduced on the premise of ensuring the safety braking of the train.
In addition, the application also provides a shunting locomotive braking device control method and a shunting locomotive, which correspond to the shunting locomotive braking device and have the same effects.
Drawings
For a clearer description of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a braking curve provided in an embodiment of the present application;
FIG. 2 is a block diagram of a shunting locomotive braking device according to an embodiment of the present application;
FIG. 3 is a flowchart of a control method for a shunting locomotive braking device according to an embodiment of the present disclosure;
the reference numerals are as follows: the air brake system comprises a controller 1, an electric brake device 2, an air brake device 3, an air brake controller 4 and an air brake action valve 5.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments herein without making any inventive effort are intended to fall within the scope of the present application.
The core of the application is to provide a shunting locomotive braking device, a control method thereof and a shunting locomotive, so as to reduce the abrasion of locomotive brake shoes on the premise of ensuring the safety braking of a train.
The conventional train braking devices mostly comprise an electric braking device 2 and an air braking device 3, and in the running process of a train, when braking is needed, an automatic braking controller 1 of a train running system judges the braking device needed to be put into according to the current speed, when the needed braking force is smaller, the electric braking device 2 is started to brake, and when the needed braking force is larger, the air braking device 3 is started to brake and the electric braking device 2 is cut off. Because of the special motor characteristics of the shunting locomotive, the braking force required by the shunting locomotive is large, and therefore the air braking device 3 is required to be frequently used for braking, but the abrasion of the air braking on a train brake shoe is large, and the service life of the train brake shoe is influenced. In order to solve this technical problem, the present application provides a shunting locomotive braking device comprising: a controller 1, an electric brake device 2 and an air brake device 3; wherein the air brake device 3 comprises an air brake controller 4 and an air brake apply valve 5; the controller 1 is connected with the electric brake device 2 to control the electric brake device 2 to output a braking force corresponding to the braking force demand value when the braking force demand value is not greater than the braking force threshold value; the controller 1 is also connected with the air brake action valve 5 to control the electric brake device 2 to output the maximum braking force and determine a braking force difference value when the braking force demand value is larger than the braking force threshold value, and controls the air brake action valve 5 to work according to the braking force difference value so as to enable the air brake device 3 to output the braking force corresponding to the braking force difference value; wherein the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device 2. In this way, the technical solution provided in the present application controls the braking of the train by acquiring the braking force demand value and controlling the electric brake device 2 and the air brake apply valve 5 so that they work in coordination to output the braking force demand value. Compared with the prior art, in the technical scheme provided by the application, the electric braking device 2 is used for providing braking force as far as possible, so that the braking force provided by the air braking device 3 is reduced, and the loss of a train brake shoe is reduced on the premise of ensuring the safety braking of the train.
In order to provide a better understanding of the present application, those skilled in the art will now make further details of the present application with reference to the drawings and detailed description.
Fig. 2 is a block diagram of a shunting locomotive braking device provided in an embodiment of the present application, and as shown in fig. 2, the shunting locomotive braking device provided in the present application includes: a controller 1, an electric brake device 2 and an air brake device 3; wherein the air brake device 3 comprises an air brake controller 4 and an air brake apply valve 5; the controller 1 is connected with the electric brake device 2 to control the electric brake device 2 to output a braking force corresponding to the braking force demand value when the braking force demand value is not greater than the braking force threshold value; the controller 1 is also connected with the air brake action valve 5 to control the electric brake device 2 to output the maximum braking force and determine a braking force difference value when the braking force demand value is greater than the braking force threshold value, and controls the air brake action valve 5 to work according to the braking force difference value so that the air brake device 3 outputs the braking force corresponding to the braking force difference value; wherein the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device 2.
In a specific implementation, the controller 1 is connected with a brake operation device to obtain brake request information sent by a train driver through the brake operation device, and analyzes the brake request information to obtain a required braking force so as to control the brake device to work to provide the braking force. The brake request information can also be information automatically generated by a train operation control system.
In a specific implementation, after determining the braking force demand, the controller 1 determines whether the braking force demand is greater than a braking force threshold value, and if not, controls the electric brake device 2 to brake. The braking force threshold value is determined by the performance of the electric brake device 2, and may be the maximum braking force that can be provided by the electric brake device 2, or may be smaller than the maximum braking force that can be provided by the electric brake device 2, and is not limited herein.
When the braking force demand is greater than the braking force threshold value, indicating that the braking force that can be provided by the present electric brake device 2 cannot meet the demanded braking force, the controller 1 calculates the difference between the braking force demand value and the braking force that can be provided by the electric brake device 2 to determine the braking force gap. The controller 1 controls the electric brake device 2 to work at full power so as to output the maximum braking force of the electric brake device 2, and simultaneously controls the air brake device 3 to work so as to output the braking force to fill the braking force gap, thereby ensuring the safety braking of the locomotive.
It is understood that the braking force demand value is a value obtained by the controller resolving an obtained braking request, which is an instruction generated by the driver according to the train operation state by operating a brake switch or a train central control unit (Central Control Unit, CCU).
In order to prevent the automatic train brake control system from turning off the electric brake device 2 when the air brake device 3 is activated, in the present embodiment, the controller 1 is directly connected to the air brake apply valve 5 of the air brake device 3 to directly control the air brake apply valve 5 to output a braking force after determining a braking force difference. Thereby outputting air braking force under the condition of ensuring that the electric braking device 2 is not cut off, and reducing the abrasion of the brake shoe.
In a specific implementation, the controller 1 may be a separately configured processor or a single chip microcomputer, or may be a central processor of a multiplexing train, which is not limited herein.
The embodiment provides a shunting locomotive braking device, which comprises: a controller, an electric brake device and an air brake device; wherein the air brake device comprises an air brake controller and an air brake action valve; the controller is connected with the electric brake device to control the electric brake device to output braking force corresponding to the braking force demand value when the braking force demand value is not greater than the braking force threshold value; the controller is also connected with the air brake action valve so as to control the electric brake device to output the maximum braking force and determine a braking force difference value when the braking force requirement value is larger than the braking force threshold value, and control the air brake action valve to work according to the braking force difference value so as to enable the air brake device to output the braking force corresponding to the braking force difference value; the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device. Therefore, the technical scheme provided by the application controls the train brake by acquiring the braking force demand value and controlling the electric braking device and the air braking action valve to make the electric braking device and the air braking action valve work cooperatively to output the braking force demand value. Compared with the prior art, in the technical scheme provided by the application, the electric braking device is used for providing the braking force as far as possible, so that the braking force provided by the air braking device is reduced, and the loss of the brake shoe of the train is reduced on the premise of ensuring the safety braking of the train.
In the train running process, when the running speed of the train is too high, the braking force provided by the electric braking device 2 is too low, so that the train is braked quickly, the safety of the train is ensured, and when the running speed of the train is too high, the air braking device 3 is required to be used for braking directly.
On the basis of the above embodiment, the shunting locomotive braking device provided by the application further includes: a speed sensor and a braking force distribution valve; the speed sensor is connected with the controller 1 to acquire a speed detection value and send the speed detection value to the controller 1; the controller 1 is also connected with the braking force distribution valve to send a braking switching signal and a braking force demand value to the braking force distribution valve when the speed detection value is greater than the speed threshold value; the brake force distribution valve is connected to both the electric brake device 2 and the air brake device 3 to control the electric brake device 2 to be turned off and control the air brake device 3 to output the brake force demand value when the brake switching signal and the brake force demand value are acquired.
In the technical solution provided in the present application, the speed threshold is a value determined according to the train performance and the braking capacity of the electric brake device 2.
In this embodiment, when the speed detection value is greater than the speed threshold value, the controller 1 controls the braking force distribution valve to cut off the electric braking device 2 and only brake by the air braking device 3, thereby ensuring quick braking of the train and improving the safety of the train.
In a specific implementation, the controller 1 comprises a brake control unit and a central control unit; the brake control unit is connected with the brake operation device to acquire brake request information sent by a driver and send the brake request information to the central control unit; the central control unit is connected with the electric brake device 2 and the air brake action valve 5.
In a specific implementation, when the braking device of the train fails, a situation may occur in which the controller 1 transmits a braking command to the braking device, but the braking device cannot brake, which affects the safety of the train. In order to solve the problem, in the technical scheme provided by the application, the shunting locomotive braking device further comprises a braking monitoring device; the brake monitoring device is connected with the electric brake device 2 and the air brake device 3 to acquire brake state information of the electric brake device 2 and the air brake device 3; the brake monitoring device is also connected with the controller 1 to acquire a brake device control instruction sent by the controller 1 and judge whether the brake state information is consistent with the brake device control instruction; if they do not match, the brake abnormality information is transmitted to the controller 1.
The brake device is connected with the controller 1 through a controller area network bus (CAN, controller Area Network) interface card to realize data transmission. Specifically, the brake monitoring device and the CAN interface card are in communication through a two-way CAN bus, and the controller 1 and the brake monitoring device are in communication through a universal serial bus (Universal Serial Bus, USB) bus.
Furthermore, in order to prompt maintenance personnel to maintain in time when the abnormal braking device exists, on the basis of the embodiment, the shunting locomotive braking device further comprises an alarm unit; the controller 1 is connected with the alarm unit to control the alarm unit to give an alarm when abnormal information of the brake device is acquired. In particular, the alarm unit generally includes a buzzer and an indicator light.
Fig. 3 is a flowchart of a control method of a shunting locomotive braking device provided by an embodiment of the present application, where the method is applied to a shunting locomotive braking device including a controller 1, an electric braking device 2, and an air braking device 3, where the air braking device 3 includes an air braking controller 4 and an air braking action valve 5; the controller 1 is connected with the electric braking device 2 and the air braking action valve 5; as shown in fig. 3, the control method of the shunting locomotive braking device comprises the following steps:
s10: judging whether the braking force demand value is greater than a braking force threshold value;
s11: if the braking force demand value is not greater than the braking force threshold value, controlling the electric brake device 2 to output a braking force corresponding to the braking force demand value;
s12: if the braking force demand value is greater than the braking force threshold value, controlling the electric braking device 2 to output the maximum braking force and determine a braking force difference value, and controlling the air braking action valve 5 to work according to the braking force difference value so as to enable the air braking device 3 to output the braking force corresponding to the braking force difference value; wherein the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device 2.
The embodiment provides a control method of a shunting locomotive braking device, which comprises the following steps: judging whether the braking force demand value is greater than a braking force threshold value; if the braking force demand value is not greater than the braking force threshold value, controlling the electric brake device to output the braking force demand value; if the braking force demand value is greater than the braking force threshold value, controlling the electric braking device to output the maximum braking force, determining a braking force difference value, and controlling the air braking action valve to work according to the braking force difference value so as to enable the air braking device to output the braking force corresponding to the braking force difference value; the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device. Therefore, the technical scheme provided by the application controls the train brake by acquiring the braking force demand value and controlling the electric braking device and the air braking action valve to make the electric braking device and the air braking action valve work cooperatively to output the braking force demand value. Compared with the prior art, in the technical scheme provided by the application, the electric braking device is used for providing the braking force as far as possible, so that the braking force provided by the air braking device is reduced, and the loss of the brake shoe of the train is reduced on the premise of ensuring the safety braking of the train.
In a specific implementation, in order to increase train safety, when the train speed is too high, the electric brake device 2 is directly cut off and braked by the air brake device 3. In this embodiment, before the step of determining whether the braking force demand value is greater than the braking force threshold value, further includes: acquiring a speed detection value sent by a speed sensor; judging whether the speed detection value is larger than a speed threshold value or not; if the speed threshold value is greater than the speed threshold value, a brake switching signal is generated and the brake switching signal and the braking force demand value are transmitted to the braking force distribution valve so that the braking force distribution valve controls the electric brake device 2 to be turned off and controls the air brake device 3 to output the braking force demand value.
Further, in order to improve the safety of the train, a brake monitoring device is also required to monitor the running state of the train, so that a brake device with abnormal working state is timely found. It should be noted that, because of the larger volume of the train, there are more braking devices provided, and the braking monitoring device needs to monitor all the braking devices. In a specific implementation, the number of the brake monitoring devices may be plural, and the brake monitoring devices are respectively disposed at each brake device to determine whether the brake device works normally.
In order to improve maintenance efficiency of the abnormal brake device when there are a plurality of brake devices, the present invention further includes, on the basis of the above embodiment: acquiring abnormal information of the brake devices sent by each brake monitoring device; analyzing abnormal information of the braking device to obtain identity information of the abnormal braking device; generating a log file according to the identity information of the abnormal braking device, so that a manager can maintain the abnormal braking device according to the log file.
In addition, the application also provides a shunting locomotive, which comprises the shunting locomotive braking device, wherein the shunting locomotive braking device comprises a controller, an electric braking device and an air braking device; wherein the air brake device comprises an air brake controller and an air brake action valve; the controller is connected with the electric brake device to control the electric brake device to output a braking force demand value when the braking force demand value is not greater than a braking force threshold value; the controller is also connected with the air brake action valve so as to control the electric brake device to output the maximum braking force and determine a braking force difference value when the braking force requirement value is larger than the braking force threshold value, and control the air brake action valve to work according to the braking force difference value so as to enable the air brake device to output the braking force corresponding to the braking force difference value; the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device. Therefore, the technical scheme provided by the application controls the train brake by acquiring the braking force demand value and controlling the electric braking device and the air braking action valve to make the electric braking device and the air braking action valve work cooperatively to output the braking force demand value. Compared with the prior art, in the technical scheme provided by the application, the electric braking device is used for providing the braking force as far as possible, so that the braking force provided by the air braking device is reduced, and the loss of the brake shoe of the train is reduced on the premise of ensuring the safety braking of the train.
The shunting locomotive braking device, the control method thereof and the shunting locomotive provided by the application are described in detail. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A shunting locomotive braking device, characterized by comprising:
a controller (1), an electric brake device (2) and an air brake device (3); wherein the air brake device (3) comprises an air brake controller (4) and an air brake apply valve (5);
the controller (1) is connected with the electric brake device (2) to control the electric brake device (2) to output a braking force corresponding to a braking force demand value when the braking force demand value is not greater than a braking force threshold value;
the controller (1) is further connected with the air brake action valve (5) to control the electric brake device (2) to output a maximum braking force and determine a braking force difference value when the braking force demand value is greater than the braking force threshold value, and control the air brake action valve (5) to work according to the braking force difference value so that the air brake device (3) outputs a braking force corresponding to the braking force difference value; wherein the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device (2).
2. The shunting locomotive brake device of claim 1, further comprising: a speed sensor and a braking force distribution valve;
the speed sensor is connected with the controller (1) to acquire a speed detection value and send the speed detection value to the controller (1);
the controller (1) is further connected with the braking force distribution valve to send a braking switching signal and the braking force demand value to the braking force distribution valve when the speed detection value is greater than a speed threshold value;
the braking force distribution valve is connected with the electric braking device (2) and the air braking device (3) so as to control the electric braking device (2) to be closed and control the air braking device (3) to output the braking force required value when the braking switching signal and the braking force required value are acquired.
3. The shunting locomotive brake device according to claim 1, characterized by the fact that said controller (1) comprises a brake control unit and a central control unit;
the brake control unit is connected with the brake operation device to acquire the brake request information sent by the driver and send the brake request information to the central control unit;
the central control unit is connected with the electric braking device (2) and the air braking action valve (5).
4. The shunting locomotive brake device according to claim 1, further comprising a brake monitoring device;
the brake monitoring device is connected with the electric brake device (2) and the air brake device (3) to obtain brake state information of the electric brake device (2) and the air brake device (3);
the brake monitoring device is also connected with the controller (1) to acquire a brake device control instruction sent by the controller (1) and judge whether the brake state information is consistent with the brake device control instruction;
if the braking device abnormality information is inconsistent, the braking device abnormality information is sent to the controller (1).
5. The shunting locomotive brake device according to claim 4, further comprising an alarm unit;
the controller (1) is connected with the alarm unit to control the alarm unit to give an alarm when the abnormal information of the braking device is acquired.
6. The shunting locomotive brake device according to claim 4, further comprising a CAN interface card;
the brake monitoring device is communicated with the CAN interface card through a double-way CAN bus, and the controller (1) is communicated with the CAN interface card through a USB bus.
7. A control method of a shunting locomotive braking device is characterized by being applied to the shunting locomotive braking device comprising a controller (1), an electric braking device (2) and an air braking device (3), wherein the air braking device (3) comprises an air braking controller (4) and an air braking action valve (5); the controller (1) is connected with the electric braking device (2) and the air braking action valve (5); the control method of the shunting locomotive braking device comprises the following steps:
judging whether the braking force demand value is greater than a braking force threshold value;
controlling the electric brake device (2) to output a braking force corresponding to the braking force demand value if the braking force demand value is not greater than the braking force threshold value;
if the braking force required value is larger than the braking force threshold value, controlling the electric braking device (2) to output the maximum braking force, determining a braking force difference value, and controlling the air braking action valve (5) to work according to the braking force difference value so as to enable the air braking device (3) to output the braking force corresponding to the braking force difference value; wherein the braking force difference is the difference between the braking force demand value and the maximum braking force of the electric brake device (2).
8. The method for controlling a brake apparatus of a shunting locomotive according to claim 7, wherein before the step of determining whether the braking force demand value is greater than a braking force threshold value, further comprising:
acquiring a speed detection value sent by a speed sensor;
judging whether the speed detection value is larger than a speed threshold value or not;
if the speed threshold value is larger than the speed threshold value, a brake switching signal is generated, and the brake switching signal and the braking force required value are sent to a braking force distribution valve so that the braking force distribution valve controls the electric brake device (2) to be closed and controls the air brake device (3) to output the braking force required value.
9. The shunting locomotive brake device control method according to claim 7, further comprising:
acquiring abnormal information of the brake devices sent by each brake monitoring device;
analyzing the abnormal information of the braking device to obtain identity information of the abnormal braking device;
generating a log file according to the identity information of the abnormal braking device, so that a manager can maintain the abnormal braking device according to the log file.
10. A shunting locomotive characterized by comprising a shunting locomotive braking device according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311413093.6A CN117360454A (en) | 2023-10-27 | 2023-10-27 | Shunting locomotive braking device, control method thereof and shunting locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311413093.6A CN117360454A (en) | 2023-10-27 | 2023-10-27 | Shunting locomotive braking device, control method thereof and shunting locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN117360454A true CN117360454A (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311413093.6A Pending CN117360454A (en) | 2023-10-27 | 2023-10-27 | Shunting locomotive braking device, control method thereof and shunting locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN117360454A (en) |
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2023
- 2023-10-27 CN CN202311413093.6A patent/CN117360454A/en active Pending
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