CN111959463A - Goods train brake control system and method with participation of gradient - Google Patents
Goods train brake control system and method with participation of gradient Download PDFInfo
- Publication number
- CN111959463A CN111959463A CN202010708019.7A CN202010708019A CN111959463A CN 111959463 A CN111959463 A CN 111959463A CN 202010708019 A CN202010708019 A CN 202010708019A CN 111959463 A CN111959463 A CN 111959463A
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- vehicle
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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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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a goods train brake control system with inclination participation and a method thereof, relating to the technical field of vehicle brake control; the control system comprises a brake signal sending device used for sending a brake deceleration command and a brake force output device arranged on each vehicle, wherein the brake force output device of each vehicle is provided with an inclination sensor and can detect the inclination of the vehicle in real time; the braking force output device is in communication connection with the braking signal sending device, can receive a braking deceleration instruction sent by the braking signal sending device, and can calculate the braking force required by each vehicle in real time according to the braking deceleration instruction information and the vehicle inclination information so as to control the vehicle to brake; by implementing the technical scheme, the influence of the component force of the gravity of each vehicle parallel to the ramp on the braking rate of the vehicle can be eliminated, so that the braking deceleration of the vehicle tends to be consistent in real time, and the purposes of reducing the longitudinal impact force when the train is braked and ensuring the running safety of the train are achieved.
Description
Technical Field
The invention relates to the technical field of vehicle brake control, in particular to a goods train brake control system and method with inclination participation.
Background
In general, the braking device of each vehicle of the freight train is preset according to the requirement of consistent braking rate on a straight road. That is, the braking device of each vehicle of the present freight train is designed according to the principle that the braking deceleration of each vehicle on a straight road is consistent, so that the longitudinal impact force of the train when the train brakes on the straight road can be reduced.
However, the freight train is generally long, and during actual operation, the terrain in which each vehicle is located may be different, and a situation may occur in which some vehicles are on a flat road, but another part of vehicles are on an uphill slope or a downhill slope at the same time. Since the component force of the gravity of the vehicle parallel to the slope is involved in braking of each vehicle, the braking rate of each vehicle changes along with the inclination degree of the vehicle on the slope, and the current cargo train braking control method does not consider the factor. Therefore, in the actual running process, the brake deceleration of each vehicle of the freight train is completely possibly inconsistent, the longitudinal impact force of the train is large, the longer the train is, the more obvious the longitudinal impact force is, accidents such as hook breakage and derailment can occur in serious conditions, and the driving safety is endangered.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a cargo train braking control system and method with gradient participation, which aims to eliminate the influence of the component force of each vehicle gravity parallel to the ramp on the vehicle braking rate in the train braking control process, so that the braking deceleration of the vehicle tends to be consistent in real time, and achieve the purpose of reducing the longitudinal impact force during train braking to ensure the train operation safety.
The technical scheme adopted by the invention is as follows:
a freight train brake control system with inclination participation for performing real-time control of brake deceleration of individual trains in unison, said control system comprising
The braking signal sending device is used for sending a braking deceleration command;
the brake force output device is arranged on each train of the train, and the brake force output device on each train is provided with an inclination sensor so that the inclination sensor can detect the inclination of the train in real time; the braking force output device is in communication connection with the braking signal sending device, so that the braking force output device can receive a braking deceleration command sent by the braking signal sending device, and can calculate the braking force required by each vehicle in real time according to the braking deceleration command information and the vehicle inclination information to control the vehicle braking.
The technical scheme detects the gradient of each train independently through the gradient sensor arranged on each train of the train, considers the actual gradient value of each train together, and can determine the braking force required by each train according to the braking deceleration instruction sent by the braking signal sending device and the real-time gradient information of the train, so that the deceleration of each train tends to be consistent, the longitudinal impact force during train braking is reduced, and the aim of ensuring the train running safety is fulfilled; meanwhile, the train marshalling number can be increased, and the train transportation efficiency is improved.
Optionally, the control system further comprises a mobile network, and the brake signal sending device and the brake force output device are in communication connection through the mobile network, so that the mobile signal network covers the train operation line.
Optionally, the braking force output device includes a braking instruction receiving module, a braking control unit BCU and a vehicle-mounted power supply, the vehicle-mounted power supply is configured to supply power to the braking control unit BCU, and the braking instruction receiving module is configured to transmit a braking deceleration instruction sent by the braking signal sending device to the braking control unit BCU. Therefore, the brake control unit BCU on each vehicle can independently receive a brake instruction with a deceleration value and respectively control the brake of the corresponding vehicle brake system, so that the deceleration of each vehicle is considered and independently controlled together, and the aim of accurately controlling the deceleration of the train is fulfilled.
Optionally, the inclination sensor is connected to a brake control unit BCU, so that vehicle inclination data detected by the inclination sensor are transmitted to the brake control unit BCU. Therefore, the inclination of each vehicle is actually obtained by the inclination sensor which is configured independently, and the braking rate of each vehicle is comprehensively considered to be changed along with the inclination of the vehicle on the slope, so that the long cargo train can be accurately braked.
Optionally, the braking force output device further comprises an execution unit connected with the corresponding vehicle brake cylinder, the execution unit is connected with the brake control unit BCU, the brake control unit BCU calculates a brake cylinder pressure value required by the corresponding vehicle deceleration according to the brake deceleration command and the vehicle inclination data information, and the execution unit controls the vehicle brake cylinder to realize vehicle brake control.
Optionally, the execution unit comprises an air storage cylinder, the air storage cylinder is connected with a train pipe of the corresponding vehicle, and is connected with a brake cylinder of the corresponding vehicle through a distribution valve and a switching valve by the train pipe, so that the brake cylinder of the corresponding vehicle is dynamically controlled according to the pressure value of the brake cylinder required by the deceleration of the corresponding vehicle, and the brake of the vehicle is controlled.
Optionally, the braking force output device and the corresponding inclination sensor are arranged on each vehicle with an increased train formation, and the braking signal transmitting device is positioned in a cab of the train; it is preferable to consider the convenience of the driver in regulating the speed or in controlling the stop of the vehicle.
The main scheme and the further selection schemes can be freely combined to form a plurality of schemes which are all adopted and claimed by the invention; in the invention, the selection (each non-conflict selection) and other selections can be freely combined. The skilled person in the art can understand that there are many combinations, which are all the technical solutions to be protected by the present invention, according to the prior art and the common general knowledge after understanding the scheme of the present invention, and the technical solutions are not exhaustive herein.
In another aspect, the present invention further provides a cargo train braking control method with inclination participation, which is applied to the above control system to perform real-time control of braking deceleration of each train to be consistent, and the control method includes the following steps:
a braking deceleration command is sent to a braking force output device arranged on each vehicle of the train through a braking signal sending device;
detecting the inclination of the vehicle in real time through an inclination sensor arranged on each vehicle;
calculating the actual braking force required by each vehicle and outputting the actual braking force to a corresponding vehicle braking system so as to control the vehicle to brake; wherein
When calculating the actual braking force required by each vehicle, the required braking pressure value of each vehicle is determined in real time based on the braking deceleration command information and the real-time gradient information obtained by the corresponding vehicle.
Further, the deceleration of the own vehicle in relation to the inclination is individually determined by a brake control unit BCU located in each vehicle brake force output device to achieve individual control of each vehicle brake.
Further, the inclination of each vehicle of the train is individually detected by using an inclination sensor installed on each vehicle, and the obtained inclination information is individually transmitted to the brake control unit BCU on the corresponding vehicle, so that the brake deceleration on each vehicle tends to be consistent in real time.
As described above, the present invention has at least the following advantages over the prior art:
1. the invention aims at eliminating the influence of the component force of the gravity of each vehicle parallel to a ramp on the braking rate, receives the braking instruction through the braking instruction receiving module arranged on each vehicle, detects the gradient of the vehicle in real time by the gradient sensor arranged on each vehicle, calculates the braking force required by each vehicle in real time by the braking control unit BCU according to the braking instruction and the real-time gradient information of the vehicle, and independently outputs the braking force to the vehicle brake cylinder to control the braking of the vehicle, so that the deceleration of each vehicle of the train tends to be consistent, the longitudinal impact force during the braking of the train is reduced, and the aim of ensuring the running safety of the train is fulfilled.
2. The invention is characterized in that each vehicle of the train is provided with the inclination sensor, the inclination sensor is used for independently detecting the inclination of each vehicle of the train, the actual value of the inclination of each vehicle is considered together, the braking rate of each vehicle is comprehensively considered to change along with the inclination of the vehicle on a ramp, and the invention is also suitable for the accurate braking of the long cargo train.
3. According to the invention, the brake control unit BCU on each vehicle of the train can independently receive the brake instruction with the deceleration value and respectively control the brake of the corresponding vehicle brake system, so that the deceleration of each vehicle is considered and independently controlled, and the aim of accurately controlling the deceleration of the train can be achieved.
3. The preferred braking signal sending device is arranged in a train cab, so that a driver can conveniently regulate the speed or control the stop; meanwhile, the train marshalling quantity can be increased, and the train transportation efficiency is improved; has good application prospect and popularization and use value in the technical field of railway vehicle braking systems.
Drawings
The invention will be described by way of specific embodiments and with reference to the accompanying drawings, in which
FIG. 1 is a schematic block diagram of a freight train brake control system with grade participation in an embodiment of the present invention;
fig. 2 is a schematic side view of a train on a ramp in an embodiment of the present invention.
Description of reference numerals: 1-a brake signal transmitting means; 2-a braking force output device; 21-a braking command receiving module; 22-brake control unit BCU; 23-a vehicle power supply; 24-air reservoir; 3-an inclination sensor; 4-a mobile network; 5-a driver cab; 6-vehicle; 61-train pipe; 62-a dispensing valve; 63-a switching valve; 64-brake cylinder.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The embodiment is basically as shown in fig. 1 and fig. 2: the embodiment provides a freight train brake control system with inclination participation, which is used for performing real-time control on the brake deceleration of each vehicle 6 of a train to be consistent, and comprises a brake signal transmitting device 1 and a brake force output device 2, wherein the brake signal transmitting device 1 is positioned in a cab 5 of the train, so that a driver can conveniently regulate the speed or control the stop, and the brake signal transmitting device 1 is used for transmitting a brake deceleration instruction; and each vehicle of the train is provided with a braking force output device 2, the braking force output device 2 of each vehicle is provided with an inclination sensor 3, and the inclination sensors 3 are independently arranged in the vehicles 6 of the train and used for detecting the inclination of the corresponding vehicle 6, so that the inclination sensors 3 can detect the inclination of the corresponding vehicle 6 in real time.
The braking force output device 2 provided by the embodiment is in communication connection with the braking signal sending device 1; preferably, the control system further comprises a mobile network 4, and the brake signal sending device 1 is in communication connection with the brake force output device 2 through the mobile network 4, so that the mobile signal network covers the train operation line; specifically, when the freight train needs to regulate the speed or stop the train, the braking signal transmitting device 1 sends out a braking instruction with a deceleration value, and the braking instruction is transmitted to the braking force output devices 2 in the vehicles 6 through the base station of the moving signal, so that the braking force output devices 2 on each vehicle 6 can receive the respective braking instruction.
The braking force output device 2 of the embodiment includes a braking instruction receiving module 21, a braking control unit BCU22 and a vehicle-mounted power supply 23, where the vehicle-mounted power supply 23 is configured to supply power to the braking control unit BCU22, and the braking instruction receiving module 21 is configured to transmit a braking deceleration instruction sent by the braking signal sending device 1 to the braking control unit BCU 22. Therefore, the brake control unit BCU22 on each vehicle 6 can independently receive a brake instruction with a deceleration value and respectively control the brake of the brake system of the corresponding vehicle 6, so that the deceleration of each vehicle 6 is considered and independently controlled together, and the aim of accurately controlling the deceleration of the train is fulfilled.
Meanwhile, the inclination sensor 3 mounted on each vehicle 6 is connected with the corresponding brake control unit BCU22 on the respective vehicle 6, so that the inclination data of the respective vehicle 6 detected by the inclination sensor 3 can be individually transmitted to the corresponding brake control unit BCU22, thereby the inclination of each vehicle 6 is actually obtained by the inclination sensor 3 which is individually configured, and the braking rate of each vehicle 6 is comprehensively considered to be changed along with the inclination of the vehicle 6 on the slope, so that the long cargo train can be accurately braked.
The braking force output device 2 provided by the embodiment further comprises an execution unit connected with the brake cylinder 64 of the corresponding vehicle 6, the execution unit can be specifically an air storage cylinder 24, the air storage cylinder 24 is connected with a brake control unit BCU22, the brake control unit BCU22 calculates the pressure value of the brake cylinder 64 required by the corresponding vehicle 6 to decelerate according to the brake deceleration command and the vehicle 6 inclination data information, and the execution unit controls the brake cylinder 64 of the vehicle 6 to realize the braking control of the vehicle 6; specifically, the reservoir 24 is connected with a train pipe 61 of the corresponding vehicle 6, and is connected with a brake cylinder 64 of the corresponding vehicle 6 through a distribution valve 62 and a switching valve 63 by the train pipe 61, so that the brake cylinder 64 of the corresponding vehicle 6 is dynamically controlled according to the pressure value of the brake cylinder 64 required by the deceleration of the corresponding vehicle 6 to realize the braking control of the vehicle 6; of course, the execution unit of the present invention is not limited to the reservoir 24 described above, and more specifically, the execution unit executes the actual braking force required by the execution unit corresponding to the corresponding brake carrier of the train braking system; such that variations and alternatives thereof are within the scope of the invention.
From the above, the control system of the present invention aims at eliminating the influence of the component force of the gravity of each vehicle 6 parallel to the slope on the braking rate, so that the braking deceleration of the vehicles 6 tends to be consistent in real time, the braking instruction receiving module 21 mounted on each vehicle 6 receives the braking instruction, the inclination sensor 3 mounted on each vehicle 6 detects the inclination of the vehicle 6 in real time, the braking control unit BCU22 calculates the braking force required by each vehicle 6 in real time according to the braking instruction and the real-time inclination information of the vehicle 6, and the braking force is individually output to the brake cylinder 64 of the vehicle 6 to control the braking of the vehicle 6. Therefore, the deceleration of each train of the train tends to be consistent, the longitudinal impact force when the train is braked is reduced, and the aim of ensuring the running safety of the train is fulfilled.
Meanwhile, fig. 1 shows a schematic block diagram of a freight train brake control system with inclination participation according to an embodiment of the present invention; according to the present invention, the present embodiment further provides a cargo train braking control method with inclination participation, which is applied to the control system described above to perform real-time control of braking deceleration of each vehicle 6 of the train to be consistent, and the control method comprises the following steps:
a braking deceleration command is sent to a braking force output device 2 arranged on each vehicle 6 of the train through a braking signal sending device 1;
detecting the inclination of the own vehicle 6 in real time by an inclination sensor 3 mounted on each vehicle 6;
calculating the actual braking force required by each vehicle 6 and outputting the actual braking force to the corresponding vehicle 6 braking system so as to control the vehicle 6 to brake; wherein
In calculating the actual braking force required for each vehicle 6, the braking pressure value required for each vehicle 6 is determined in real time based on the braking deceleration command information and the real-time inclination information obtained by the corresponding vehicle 6.
Specifically, the control method of the present embodiment determines the deceleration of the vehicle 6 in relation to the inclination by the brake control unit BCU22 located in the brake force output device 2 of each vehicle 6 individually to realize individual control of the braking of each vehicle 6 of the train, thereby realizing that the deceleration of each vehicle 6 is considered together and the individual control is realized, and achieving the purpose of accurate train control of the deceleration; meanwhile, the inclination sensor 3 arranged on each vehicle 6 is utilized to independently detect the inclination of each vehicle 6 of the train, and the obtained inclination information is independently transmitted to the brake control unit BCU22 on the corresponding vehicle 6, so that the brake deceleration of each vehicle 6 tends to be consistent in real time, the actual value of the inclination of each vehicle is considered together, the brake rate of each vehicle 6 is comprehensively considered to change along with the inclination of the vehicle 6 on a slope, and the method is also suitable for the accurate braking of the long cargo train.
In conclusion, the control system and the control method of the invention aim at eliminating the influence of the component force of the gravity of each vehicle 6 parallel to the ramp on the braking rate so as to execute the real-time control of the braking deceleration of each vehicle 6 of the train to be consistent, and can achieve the purposes of reducing the longitudinal impact force when the train is braked and ensuring the running safety of the train; meanwhile, the train marshalling quantity can be increased, the train transportation efficiency is improved, and the method has good application prospect and popularization and application value in the technical field of 6 braking systems of railway vehicles and is suitable for popularization and application.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cargo train brake control system with inclination participation, characterized in that: to perform real-time control on the brake deceleration of each vehicle of the train to be consistent, and the control system comprises
The braking signal sending device is used for sending a braking deceleration command;
the brake force output device is arranged on each train of the train, and the brake force output device on each train is provided with an inclination sensor so that the inclination sensor can detect the inclination of the train in real time; the braking force output device is in communication connection with the braking signal sending device, so that the braking force output device can receive a braking deceleration command sent by the braking signal sending device, and can calculate the braking force required by each vehicle in real time according to the braking deceleration command information and the vehicle inclination information to control the vehicle braking.
2. The system and method for incline participation cargo train brake control according to claim 1, wherein: the control system also comprises a mobile network, and the brake signal sending device and the brake force output device are in communication connection through the mobile network, so that the mobile signal network covers the train operation line.
3. The system and method for incline participation cargo train brake control according to claim 2, wherein: the braking force output device comprises a braking instruction receiving module, a Braking Control Unit (BCU) and a vehicle-mounted power supply, the vehicle-mounted power supply is used for supplying power to the Braking Control Unit (BCU), and the braking instruction receiving module is used for transmitting a braking deceleration instruction sent by the braking signal sending device to the Braking Control Unit (BCU).
4. The system and method for incline participation cargo train brake control according to claim 3, wherein: the inclination sensor is connected to the brake control unit BCU in such a way that vehicle inclination data detected by the inclination sensor are transmitted to the brake control unit BCU.
5. The system and method for incline participation cargo train brake control according to claim 4, wherein: the braking force output device further comprises an execution unit connected with the corresponding vehicle brake cylinder, the execution unit is connected with the brake control unit BCU, the brake control unit BCU calculates a brake cylinder pressure value meeting the requirement of corresponding vehicle deceleration according to the brake deceleration instruction and the vehicle inclination data information, and the execution unit controls the vehicle brake cylinder to realize vehicle brake control.
6. The system and method for incline participation cargo train brake control according to claim 5, wherein: the execution unit comprises an air storage cylinder, the air storage cylinder is connected with a train pipe of the corresponding vehicle and is connected with a brake cylinder of the corresponding vehicle through a distribution valve and a switching valve by the train pipe, so that the brake cylinder of the corresponding vehicle is dynamically controlled according to the pressure value of the brake cylinder required by the deceleration of the corresponding vehicle to realize the control of the braking of the vehicle.
7. The system and method for incline participation cargo train brake control according to claim 1, wherein: the braking force output device and the corresponding inclination sensor are arranged on the vehicles with the increased train formation, and the braking signal transmitting device is positioned in a cab of the train.
8. A cargo train brake control method with inclination participation is characterized in that: the control system is applied to the control system according to any one of claims 1-7 to perform real-time control on the brake deceleration of each vehicle of the train to be consistent, and the control method comprises the following steps:
a braking deceleration command is sent to a braking force output device arranged on each vehicle of the train through a braking signal sending device;
detecting the inclination of the vehicle in real time through an inclination sensor arranged on each vehicle;
calculating the actual braking force required by each vehicle and outputting the actual braking force to a corresponding vehicle braking system so as to control the vehicle to brake; wherein
When calculating the actual braking force required by each vehicle, the required braking pressure value of each vehicle is determined in real time based on the braking deceleration command information and the real-time gradient information obtained by the corresponding vehicle.
9. The method of incline participation cargo train brake control according to claim 8, wherein: the deceleration of the vehicle in relation to the inclination is determined individually by a brake control unit BCU located in the brake force output device of each vehicle to achieve individual control of the braking of each vehicle.
10. The method of incline participation cargo train brake control according to claim 9, wherein: the inclination of each vehicle of the train is detected by using an inclination sensor arranged on each vehicle, and the obtained inclination information is transmitted to the brake control unit BCU on the corresponding vehicle so as to lead the brake deceleration on each vehicle to be consistent in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708019.7A CN111959463A (en) | 2020-07-22 | 2020-07-22 | Goods train brake control system and method with participation of gradient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708019.7A CN111959463A (en) | 2020-07-22 | 2020-07-22 | Goods train brake control system and method with participation of gradient |
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| CN111959463A true CN111959463A (en) | 2020-11-20 |
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| CN202010708019.7A Pending CN111959463A (en) | 2020-07-22 | 2020-07-22 | Goods train brake control system and method with participation of gradient |
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Cited By (3)
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| CN115140000A (en) * | 2022-06-28 | 2022-10-04 | 眉山中车制动科技股份有限公司 | Railway wagon brake and braking method |
| WO2022207432A1 (en) * | 2021-03-29 | 2022-10-06 | Siemens Mobility GmbH | Vehicle having a sensor arrangement for measuring an actuating angle of the actuating element, measuring arrangement and measurement method |
| WO2024077643A1 (en) * | 2022-10-10 | 2024-04-18 | 中车制动***有限公司 | Asynchronous braking control method and system for train |
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