CN105459989A - Traction and braking control method for train in emergency traction mode - Google Patents
Traction and braking control method for train in emergency traction mode Download PDFInfo
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- CN105459989A CN105459989A CN201510821354.7A CN201510821354A CN105459989A CN 105459989 A CN105459989 A CN 105459989A CN 201510821354 A CN201510821354 A CN 201510821354A CN 105459989 A CN105459989 A CN 105459989A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention discloses a traction and braking control method for a train in an emergency traction mode. The method includes the steps that (1) a central control system with a braking control module and a traction control module is pre-established, and the central control system is electrically connected with a braking executing device and a traction executing device and connected with a train hardwire, so that an emergency traction mode control system is obtained; (2) when a network in the train breaks down and the train is in the emergency traction mode, the central control system is connected to the train hardwire, control instructions of the train are received from the train hardwire, the step (3) is executed if the traction instruction is received, and the step (4) is executed if the braking instruction is received; (3) the traction control module is started to control traction execution; and (4) the braking control module and the traction control module are started to control electric-pneumatic composite braking execution. The traction and braking control method has the advantages that the implementation method is simple; when the train is in a fault state, braking can be executed accurately, and an electric-pneumatic composite braking mode can be executed.
Description
Technical field
The present invention relates to the control technology field of the urgent traction mode of train, particularly relate to a kind of urgent traction mode Train traction braking control method.
Background technology
Traditional rail transit train traction braking control system, be that each intelligent cell pull-in control system, braking control system decile being distributed in whole train by MVB is coupled to a train network, train network control system carries out information interaction by vehicle bus with each subsystem be connected.
As shown in Figure 1, conventional train traction braking control system is control data transmission Network Based, and train control system adopts the mode of Network Priority, is controlled as subsequent use by rigid line; When train network communication is normal, the traction sent as main control unit collection driver controller or train signal system by the network control system of the vehicle of band driver control cabin, brake command and level bit instruction, and be sent to the network control system of all the other vehicle units by train network, and complete traction and the control for brake of this vehicle.Based on conventional train traction braking control system form of train formation as shown in Figure 2, by train network by often save vehicle traction, control for brake information feed back to the network control system of vehicle being with driver control cabin, realize the logic control of permutation car, train function for monitoring and train diagnosis function; Under ensureing MVB failure condition, train can continue to run until the next stop, train is provided with and promptly draws button, driver can enter urgent traction mode by operating urgent traction button, when train is in urgent traction mode, pull-in control system, braking control system realize traction and the control for brake of train by the instruction and rigid line coding level receiving rigid line.
As shown in Figure 3, conventional train traction braking control system is when train is in urgent traction mode, pull-in control system, braking control system ignores the network signal of MVB, traction and the control for brake of train is realized by means of only the instruction and rigid line coding level that receive rigid line, but the network signal having lacked MVB due to pull-in control system and braking control system carries out alternately, thus the conventional train traction braking control system of data transmission Network Based cannot adopt empty electric composite brakig mode under urgent traction mode, make to play electric braking, and air brake can only be used, have impact on the deceleration and stopping performance of train.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides that a kind of implementation method is simple, train accurately can perform braking when being in faulty condition, and can perform the urgent traction mode Train traction braking control method of electric empty composite brakig mode.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of urgent traction mode Train traction braking control method, step comprises:
1) build in advance and there is brake control module for controlling to perform electric empty composite brakig, for controlling to draw in traction system the master control system of the traction control module of executive device, and described master control system is electrically connected with braking executive device, described traction executive device in brake system respectively, and be connected with train rigid line, set up and obtain urgent traction mode control system;
2) when in train, network failure enters urgent traction mode, described master control system is switched to access train rigid line, traction, the braking instruction of train is received from described train rigid line, if wherein receive traction instruction to proceed to execution step 3), if receive braking instruction to proceed to execution step 4);
3) starting described traction control module, performing draw operations by drawing executive device described in described traction control module controls;
4) start described brake control module, traction control module, control described braking executive device respectively by described brake control module, traction control module, traction executive device performs electric empty composite brakig and operates.
As a further improvement on the present invention: described step 2), the concrete fixed traction level that adopts controls described traction executive device execution draw operations; In described step 3), concrete employing fixing braking level controls described braking executive device, traction executive device performs electric empty composite brakig and operates.
As a further improvement on the present invention, the concrete steps of described step 3) are: start described traction control module, traction instruction is received by described traction control module, and send corresponding traction control instruction to described traction executive device according to described traction instruction, perform corresponding draw operations to control described traction executive device.
As a further improvement on the present invention, the concrete steps of described step 4) are:
4.1) described brake control module, traction control module is started;
4.2) braking instruction is received by described brake control module, and send electric braking control command to drawing executive device and sending air brake applying instruction to described braking executive device according to described braking instruction according to described braking instruction by described traction control module, perform electric braking to control described traction executive device, braking executive device performs air brake, completes electric empty composite brakig.
As a further improvement on the present invention, described step 4.2) concrete steps be:
4.21) receive braking instruction by described brake control module, calculating required electric braking force, air-making power, apply instruction by the air brake that required electric braking force produces corresponding electric braking control command, required air braking force produces correspondence;
4.22) described electric braking control command to be sent to described traction executive device by described traction control module and directly described air brake to be applied instruction and is sent to described braking executive device by described brake control module.
As a further improvement on the present invention, described step 4) also comprises braking set-up procedure, concrete steps are: described brake control module receives the actual braking force of the current applying of Brake feedback calculated signals of described traction executive device, braking executive device respectively, adjust described electric braking control command, air brake applies instruction according to the actual braking force calculated.
Compared with prior art, the invention has the advantages that:
1) the present invention's urgent traction mode Train traction braking control method, brake control module is integrated with by building in advance, the master control system of traction control module also forms urgent traction mode control system, traction is had concurrently by master control system, brake control function, when train et out of order enters urgent traction mode, the network signal of MVB can be ignored, and drawn by train control cables, directly controlled to perform traction by master control system after braking instruction, braking, guarantee that train still can perform traction accurately under urgent traction mode, braking, simultaneously due to master control system and brake control module, directly controlled by electrical connection between traction control module, without the need to control data transfer transmission, thus electric empty composite brakig can be performed, give full play to electric braking and air-making power, promote the control for brake performance of train under urgent traction mode,
2) tractor-trailer train traction braking control method under emergency mode of the present invention, after electric braking force needed for calculating further by the empty Hybrid mode of electricity, air-making power, direct control braking executive device, traction executive device apply braking force, can control to perform electric braking and air brake without the need to network signal simultaneously, thus under urgent traction mode, accurately can perform electric empty composite brakig;
3) tractor-trailer train traction braking control method under emergency mode of the present invention, the empty composite brakig process of electricity comprises braking set-up procedure further, adjust described electric braking control command according to the actual braking force calculated, air brake applies instruction, at master control system and braking executive device with draw the real-time status fed back by electric signal line between executive device and form closed loop control, thus make control for brake more accurate.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the train traction brake system of traditional data transmission Network Based.
Fig. 2 is the marshalling principle schematic of the train traction brake system of traditional data transmission Network Based.
Fig. 3 is the control principle schematic diagram of conventional train traction braking system under urgent traction mode.
Fig. 4 is the realization flow schematic diagram of the present embodiment urgent traction mode Train traction braking control method.
Fig. 5 is the structural representation of the traction braking control system that the present embodiment train traction brake control method is set up.
Fig. 6 is the train marshalling list principle schematic of the present embodiment train traction brake control method.
Fig. 7 is the control principle schematic diagram of the present embodiment traction braking control system under urgent traction mode.
Fig. 8 is the specific implementation schematic flow sheet of electric empty composite brakig in the present embodiment train traction brake control method.
Marginal data: 1, master control system; 11, network control module; 12, brake control module; 13, traction control module; 2, braking executive device; 3, executive device is drawn.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
As shown in Figure 4, the present embodiment urgent traction mode Train traction braking control method, step comprises:
1) build in advance and there is brake control module 12 for controlling to perform electric empty composite brakig, for controlling to draw in traction system the master control system 1 of the traction control module 13 of executive device 3, and by master control system 1 respectively with braking executive device in brake system 2, draw executive device 3 and be electrically connected, and be connected with train rigid line, set up and obtain urgent traction mode control system;
2) when in train, network failure enters urgent traction mode, master control system 1 is accessed train rigid line, the traction of train, braking instruction is received, if wherein receive traction instruction to proceed to execution step 3), if receive braking instruction to proceed to execution step 4) from train rigid line;
3) start traction control module 13, control traction executive device 3 by traction control module 13 and perform draw operations;
4) start brake control module 12, traction control module 13, control braking executive device 2 respectively by brake control module 12, traction control module 13, traction executive device 3 performs electric empty composite brakig and operates.
The present embodiment sets up traction braking control system as shown in Figure 5, comprise master control system 1 and the braking executive device 2 be electrically connected with master control system 1 respectively, draw executive device 3, master control system 1 comprises brake control module 12 for controlling to perform electric empty composite brakig, for controlling to draw the traction control module 13 of executive device 3, master control system 1 is connected with TCN, train rigid line respectively, and the master control system 1 in each vehicle unit of train carries out data interaction by TCN; Master control system 1 respectively with braking executive device 2, draw executive device 3 and be electrically connected, by electrical command, braking executive device 2, traction executive device 3 are directly controlled, eliminate master control system 1 and braking executive device 2, draw data transmission delay between executive device 3, ensure braking executive device 2, draw executive device 3 and can respond braking instruction in time.
When train is in normal condition, the traction of master control system 1 real-time reception train from TCN, braking instruction, control braking executive device 2, traction executive device 3 to perform draw operations or electric empty composite brakig operation respectively by brake control module 12, traction control module 13; When train et out of order enters urgent traction mode, master control system 1 is switched to access train rigid line, from train rigid line, receive the traction of train, braking instruction, directly control braking executive device 2 by the brake control module 12 of master control system 1, traction control module 13, executive device 3 performs traction, electric composite brakig operates in traction.
As shown in Figure 6, when the above-mentioned traction braking control system of the present embodiment carries out train marshalling list, in the master control system 1 of each motor-car vehicle unit of train corresponding integrated brake control module 12, traction control module 13 with control braking executive device 2, traction executive device 3 perform traction, electric empty composite brakig; In the master control system 1 of each trailer vehicles unit, corresponding integrated brake control module 12 performs braking to control braking executive device 2.By TCN by often save vehicle traction, control for brake information feed back to the network control system of vehicle being with driver control cabin, when there is network failure in TCN, master control system 1 accesses train rigid line and enters urgent traction state, controls the traction, the braking that are fixed level.
The present embodiment has brake control module 12 by building in advance, traction control module 13 master control system 1 also forms urgent traction mode control system, traction is had concurrently by master control system 1, brake control function, when train et out of order enters urgent traction mode, the network signal of MVB can be ignored, and drawn by train control cables, directly controlled to perform traction by master control system 1 after braking instruction, braking, guarantee that train still can perform traction accurately under urgent traction mode, braking, simultaneously due to master control system 1 and brake control module 12, directly controlled by electrical connection between traction control module 13, without the need to control data transfer transmission, thus electric empty composite brakig can be performed, give full play to electric braking and air-making power, promote the control for brake performance of train under urgent traction mode.
In the present embodiment, step 2) in specifically adopt fixed traction level to control traction executive device 3 to perform draw operations; In step 3), concrete employing fixing braking level controls braking executive device 2, traction executive device 3 performs electric empty composite brakig and operates, namely, after train enters urgent traction state by train rigid line, the traction of train and braking are all adopt fixing level to control by master control system 1.In the present embodiment, the concrete steps of step 3) are: start traction control module 13, receive traction instruction by traction control module 13, and send corresponding traction control instruction to traction executive device 3 according to traction instruction, perform corresponding draw operations to control drawing executive device 3.
In the present embodiment, the concrete steps of step 4) are:
4.1) brake control module 12, traction control module 13 is started;
4.2) braking instruction is received by brake control module 12, and send electric braking control command to drawing executive device 3 and sending air brake applying instruction to braking executive device 2 according to braking instruction according to braking instruction by described traction control module 13, to control traction, executive device 3 performs electric braking, braking executive device 2 performs air brake, completes electric empty composite brakig.
In the present embodiment, step 4.2) concrete steps be:
4.21) receive braking instruction by brake control module 12, calculating required electric braking force, air-making power, apply instruction by the air brake that required electric braking force produces corresponding electric braking control command, required air braking force produces correspondence;
4.22) described electric braking control command to be sent to described traction executive device 3 by described traction control module 12 and directly air brake is applied instruction is sent to braking executive device 2 by brake control module 12.
As shown in Figure 7, when train is in urgent traction mode, master control system 1 is received by train rigid line and promptly draws instruction, and master control system 1 controls traction executive device 3 by fixed traction level, fixing braking level, braking executive device 2 performs traction, braking; When receiving braking instruction, brake control module 11 calculates required electric braking force and air-making power by electric empty Hybrid mode, send electric braking instruction by required electric braking force to send air brake apply instruction to braking executive device 2 to traction executive device 3, required air braking force, traction executive device 3 applies electric braking force according to electric braking instruction, braking executive device 2 applies instruction according to air brake and applies air-making power.After electric braking force needed for the empty mixed control unit of electricity calculates, air-making power, direct control braking executive device 2, traction executive device 3 apply braking force, then can control to perform electric braking and air brake without the need to network signal simultaneously, under urgent traction mode, accurately perform electric empty composite brakig.
In the present embodiment, step 4) also comprises braking set-up procedure, concrete steps are: brake control module 12 receives the actual braking force of the current applying of Brake feedback calculated signals of described traction executive device 3, braking executive device 2 respectively, adjust described electric braking control command, air brake applies instruction according to the actual braking force calculated.By master control system 1 and braking executive device 2 with draw the real-time status fed back by electric signal line between executive device 3 and form closed loop control, thus make control for brake more accurate.As shown in Figure 7, when the present embodiment traction executive device 3 performs electric brake operation, electric braking is fed back to master control system 1; When braking executive device 2 performs air brake operation, by brake pressure feedback to master control system 1; Control for brake adjustment unit receives electric braking feedback, brake pressure feedback calculate actual braking force, by the instruction of actual braking force control for brake.Master control system 1 is by electric empty mixed control unit, braking adjustment unit, a closed loop control system is formed with braking executive device 2, traction system 3, realize the closed loop control of braking procedure, thus can Real-Time Monitoring braking executive device 2, traction executive device 3, simultaneously in real time adjustment control for brake is to make control process more accurate.
As shown in Figure 8, in train during network failure, train trigger emergency traction instruction, train control command (the traction instruction that master control system 1 is sent by train rigid line reception driver control cabin, braking instruction), when master control system 1 receives braking instruction, calculate total braking force demand and control the rate of rise of total braking force demand according to preset requirement, electric power processed is produced by electric braking priority principle, finally calculate required electric braking force and air-making power in real time, and directly send electric braking instruction and air brake applying instruction by electrical command respectively to traction executive device 3 and braking executive device 2, after traction executive device 3 receives the electric braking instruction that master control system sends, carry out electric braking applying according to virtual rating, and in real time electric braking is fed back to master control system 1, braking executive device 2 receives after air brake that master control system 1 sends applies instruction, performs the applying of air-making power, and Real-time Feedback brake pressure value, master control system 1 calculates actual braking force by the brake pressure value fed back electric braking force and the braking executive device 2 of traction executive device 3 feedback, and adjustment electric braking instruction in real time and air brake applying instruction.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (6)
1. a urgent traction mode Train traction braking control method, it is characterized in that, step comprises:
1) brake control module (11) had for controlling to perform electric empty composite brakig, the master control system (1) controlling to draw in traction system the traction control module (13) of executive device (3) is built in advance, and described master control system (1) is electrically connected with braking executive device in brake system (2), described traction executive device (3) respectively, and be connected with train rigid line, set up and obtain urgent traction mode control system;
2) when in train, network failure enters urgent traction mode, by described master control system (1) access train rigid line, traction, the braking instruction of train is received from described train rigid line, if wherein receive traction instruction to proceed to execution step 3), if receive braking instruction to proceed to execution step 4);
3) start described traction control module (13), control described traction executive device (3) by described traction control module (13) and perform draw operations;
4) start described brake control module (12), traction control module (13), control described braking executive device (2) by described brake control module (12), traction control module (13), traction executive device (3) performs the operation of electric empty composite brakig.
2. urgent traction mode Train traction braking control method according to claim 1, is characterized in that, described step 2) in concrete adopt fixed traction level to control described traction executive device (3) to perform draw operations; Specifically in described step 3) adopt that fixing braking level controls described braking executive device (2), traction executive device (3) performs electric empty composite brakig operation.
3. urgent traction mode Train traction braking control method according to claim 2, it is characterized in that, the concrete steps of described step 3) are: start described traction control module (13), traction instruction is received by described traction control module (13), and send corresponding traction control instruction to described traction executive device (3) according to described traction instruction, perform corresponding draw operations to control described traction executive device (3).
4. the urgent traction mode Train traction braking control method according to claim 1 or 2 or 3, it is characterized in that, the concrete steps of described step 4) are:
4.1) described brake control module (12), traction control module (13) is started;
4.2) braking instruction is received by described brake control module (12), and send electric braking control command to drawing executive device (3) and sending air brake applying instruction to described braking executive device (2) according to described braking instruction according to described braking instruction by described traction control module (13), perform electric braking to control described traction executive device (3), braking executive device (2) performs air brake, completes electric empty composite brakig.
5. urgent traction mode Train traction braking control method according to claim 4, is characterized in that, described step 4.2) concrete steps be:
4.21) receive braking instruction by described brake control module (12), calculating required electric braking force, air-making power, apply instruction by the air brake that required electric braking force produces corresponding electric braking control command, required air braking force produces correspondence;
4.22) described electric braking control command to be sent to described traction executive device (3) by described traction control module (13) and directly described air brake to be applied instruction and is sent to described braking executive device (2) by described brake control module (12).
6. the urgent traction mode Train traction braking control method according to claim 1 or 2 or 3, it is characterized in that, described step 4) also comprises braking set-up procedure, concrete steps are: described brake control module (12) receives the actual braking force of the current applying of Brake feedback calculated signals of described traction executive device (3), braking executive device (2) respectively, adjust described electric braking control command, air brake applies instruction according to the actual braking force calculated.
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