CN114148369A - Train control system and method - Google Patents
Train control system and method Download PDFInfo
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- CN114148369A CN114148369A CN202111582432.4A CN202111582432A CN114148369A CN 114148369 A CN114148369 A CN 114148369A CN 202111582432 A CN202111582432 A CN 202111582432A CN 114148369 A CN114148369 A CN 114148369A
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- 238000010586 diagram Methods 0.000 description 4
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/14—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels controlling distribution of tractive effort between driving wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
Abstract
The application provides a train control system and a method, wherein the system comprises: train control unit and a plurality of vehicle control module, every vehicle control module includes: the system comprises a vehicle control unit, a traction actuating mechanism and a brake actuating mechanism; the train control unit is connected with the vehicle control unit; the vehicle control unit is respectively connected with the traction actuating mechanism and the brake actuating mechanism; the train control unit is used for receiving a train control command, determining electric braking force information and air braking force information of each train and sending the electric braking force information and the air braking force information to the train control unit; the vehicle control unit is used for sending electric braking force information to the traction actuating mechanism and sending air braking force information to the brake actuating mechanism; the traction actuating mechanism is used for controlling the electric braking force of the vehicle where the traction actuating mechanism is positioned according to the electric braking force information; the brake actuating mechanism is used for controlling the air braking force of the vehicle where the brake actuating mechanism is located according to the air braking force information. The application can realize the unified control of the train, and further can improve the efficiency and the convenience degree of train control.
Description
Technical Field
The application relates to the technical field of automatic control, in particular to a train control system and method.
Background
The train control system of the motor train unit undertakes the control, monitoring, diagnosis and protection tasks of the whole motor train unit and is responsible for completing the operation control, monitoring and diagnosis functions of the train; the train control system controls and manages almost all subsystems of a traction system, a braking system, a high-voltage system, auxiliary power supply, an air conditioner, driving safety equipment, a vehicle door, illumination and the like of a train through a train network.
The train control function of the existing motor train unit is divided according to systems, for example, the train electric-air composite function is managed and controlled by a brake system, and the train wheel anti-skid function is controlled by a traction system and the brake system together. This way of distributing functions in a system has the disadvantages:
1. the control is complex and the control effect is poor.
The train control function which can be realized only by matching the subsystems is needed. For example, the antiskid control function of a train, information needs to be transmitted between a traction subsystem and a brake subsystem in real time, and when the antiskid effect of the traction system is poor and the deep sliding is performed, the antiskid protection is performed by the brake system. The mutual information transmission of different subsystems increases control delay and response time, and meanwhile, in the aspect of control effect, the control is complex, the subsystems cannot be well matched, and the control effect is influenced.
2. And a plurality of control units are used, and signals are repeatedly acquired.
Some control functions of the motor train unit train are distributed in the subsystems, for example, the common brake force distribution function of the motor train unit train is completed by the brake control unit, the brake control unit needs to acquire a train brake command signal, receive an electric brake capacity signal sent by the traction control unit, judge whether to supplement air brake application or not, and perform electric-air composite brake force distribution calculation.
Disclosure of Invention
The train control system and the train control method are provided for solving at least one problem in the prior art, can achieve unified control over trains, and further can improve train control efficiency and convenience.
In order to solve the technical problem, the present application provides the following technical solutions:
in a first aspect, the present application provides a train control system comprising:
train control unit and a plurality of vehicle control module, every vehicle control module includes: the system comprises a vehicle control unit, a traction actuating mechanism and a brake actuating mechanism; the train control unit is arranged in an end train of the target train; each vehicle control module is respectively arranged in different vehicles of the target train; the train control unit is respectively connected with each vehicle control unit; in the same vehicle control module, the vehicle control unit is respectively connected with a traction actuating mechanism and a brake actuating mechanism;
the train control unit is used for receiving a train control instruction, determining electric braking force information and air braking force information of each train according to the braking force distribution instruction if the train control instruction is a braking force distribution instruction, and sending the electric braking force information and the air braking force information to the vehicle control unit corresponding to the train;
the vehicle control unit is used for sending the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit and sending the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit;
the traction executing mechanism is used for controlling the electric braking force of a vehicle where the traction executing mechanism is located according to the electric braking force information;
and the brake executing mechanism is used for controlling the air braking force of the vehicle where the brake executing mechanism is located according to the air braking force information.
Further, if the train control instruction is a high-voltage system control instruction, the train control unit is further configured to control a high-voltage system of the target train according to the high-voltage system control instruction.
Further, if the train control instruction is an electric energy control instruction, the train control unit is further configured to provide electric energy for a train traction system and/or a train auxiliary system of the target train according to the electric energy control instruction.
Further, if the train control command is a configuration command of traction braking, the train control unit is further configured to configure a train traction system and/or a train braking system according to the configuration command of traction braking.
Further, if the train control instruction is a traction brake setting instruction, the train control unit is further configured to send the traction brake setting instruction to each vehicle control unit;
and the vehicle control unit is also used for setting the traction force and/or the braking force of the vehicle where the vehicle control unit is located according to the traction braking setting instruction.
Further, if the train control instruction is a vehicle protection instruction, the train control unit is further configured to send the vehicle protection instruction to each vehicle control unit;
and the vehicle control unit is also used for performing vehicle anti-skid and anti-idle processing on the vehicle where the vehicle control unit is located according to the vehicle protection instruction.
Further, each vehicle control module further comprises: a traction motor; the traction actuating mechanism in the same vehicle is connected with a traction motor;
and the traction executing mechanism is used for controlling a traction motor in the same vehicle as the traction executing mechanism to generate electric braking force according to the braking force distribution instruction.
Further, each vehicle control module further comprises: a brake actuator; the brake actuating mechanism and the brake actuating device in the same vehicle are connected;
and the brake executing mechanism is used for controlling a brake executing device in the same vehicle as the brake executing mechanism to generate air braking force according to the vehicle brake control command.
In a second aspect, the present application provides a train control method, which applies the train control system, and includes:
the train control unit receives a train control command, and if the train control command is a braking force distribution command, the electric braking force information and the air braking force information of each train are determined according to the braking force distribution command and are sent to the train control unit corresponding to the train;
the vehicle control unit sends the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit, and sends the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit;
the traction actuating mechanism controls the electric braking force of the vehicle where the traction actuating mechanism is located according to the electric braking force information;
and the brake actuating mechanism controls the air braking force of the vehicle where the brake actuating mechanism is positioned according to the air braking force information.
Further, the train control method further includes:
and if the train control instruction is a high-voltage system control instruction, the train control unit controls the high-voltage system of the target train according to the high-voltage system control instruction.
According to the technical scheme, the train control system and the train control method are provided. Wherein, the method comprises the following steps: train control unit and a plurality of vehicle control module, every vehicle control module includes: the system comprises a vehicle control unit, a traction actuating mechanism and a brake actuating mechanism; the train control unit is arranged in an end train of the target train; each vehicle control module is respectively arranged in different vehicles of the target train; the train control unit is respectively connected with each vehicle control unit; in the same vehicle control module, the vehicle control unit is respectively connected with a traction actuating mechanism and a brake actuating mechanism; the train control unit is used for receiving a train control instruction, determining electric braking force information and air braking force information of each train according to the braking force distribution instruction if the train control instruction is a braking force distribution instruction, and sending the electric braking force information and the air braking force information to the vehicle control unit corresponding to the train; the vehicle control unit is used for sending the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit and sending the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit; the traction executing mechanism is used for controlling the electric braking force of a vehicle where the traction executing mechanism is located according to the electric braking force information; the brake actuating mechanism is used for controlling the air braking force of the train where the brake actuating mechanism is located according to the air braking force information, so that the unified control of the train can be realized, and the train control efficiency and the convenience degree can be further improved; specifically, 1) the control rationality of the control function of the train is assigned, so that the repeated signal acquisition can be reduced, the complexity of the control is reduced, and the new control energy is improved. The original function distribution according to the subsystems is broken. For example, the distribution function of electric brake force and air brake force, which is performed by the train control unit, changes the original manner in which the brake system performs. The new distribution mode is more reasonable in function execution. The train control unit executes the distribution of the train electric braking force and the air braking force, the interaction of electric braking information by the traction subsystem and the braking subsystem is not needed, and the function of upgrading the braking control unit to a train main control braking unit is also not needed; the train control unit receives the related information of the traction system and the brake system, and performs unified processing, so that the transmission and the handshake of signals can be reduced, the time delay can be reduced, and the control effect and the real-time performance can be improved. Because the brake control unit is not required to have the function of the train main brake control unit, the design of the brake system control unit can be simplified, and the brake system control unit is concentrated on controlling the function of the brake component to generate corresponding brake force. 2) The function-oriented train control system is distributed according to the reasonability of train control function execution, a train control task is executed in a train control unit, a vehicle control task is executed in the vehicle control unit, the control task of a traction execution mechanism is to control a motor to output traction/electric braking force in a closed loop mode, and the control task of a brake execution mechanism is to control a brake component to generate air braking force in the closed loop mode. By adopting function-oriented function distribution of the train control system, the functions of the traction controller and the brake controller can be specialized, standardization and universality are realized, and the adaptive function adjustment related to different types of trains can be executed by the vehicle control unit.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a time consuming schematic of a train control process of a prior art train control system;
FIG. 2 is a time consuming diagram of a train control process of the train control system in one example of the subject application;
fig. 3 is a schematic structural diagram of a train control system in an embodiment of the present application;
FIG. 4 is a schematic illustration of a train control system in another embodiment of the present application;
FIG. 5 is a schematic flow chart diagram of a train control method in an embodiment of the present application;
FIG. 6 is a schematic flow chart diagram of a train control method in another embodiment of the present application;
fig. 7 is a flowchart illustrating a train control method according to an example of application of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In order to solve the problems in the prior art, embodiments of the present application provide a train control system and method, which can obtain better control performance and faster control response than those of an existing motor train unit train, and can reduce the complexity of control; the subsystem boundary is broken through, functions needing train unified control can be integrated into a central control unit (namely a train control unit) to carry out unified control, for example, the unified distribution function of air braking force and electric braking force of a train is realized, a train main control unit outputs a train control command, a train unit controller outputs a unit control command, and a traction execution mechanism (a traction converter controller) is directly controlled to carry out closed-loop control on the output of traction/electric braking force of a motor; the brake component is closed-loop controlled by a brake actuator (brake controller) to generate air braking force.
The following examples are intended to illustrate the details.
In order to realize unified control over trains and further improve the efficiency and convenience of train control, as shown in fig. 3, the embodiment provides a train control system, which is specifically described as follows:
train control unit and a plurality of vehicle control module, every vehicle control module includes: the system comprises a vehicle control unit, a traction actuating mechanism and a brake actuating mechanism; the train control unit is arranged in an end train of the target train; each vehicle control module is respectively arranged in different vehicles of the target train; the train control unit is respectively connected with each vehicle control unit; in the same vehicle control module, the vehicle control unit is respectively connected with a traction actuating mechanism and a brake actuating mechanism; the train control unit is used for receiving a train control instruction, determining electric braking force information and air braking force information of each train according to the braking force distribution instruction if the train control instruction is a braking force distribution instruction, and sending the electric braking force information and the air braking force information to the vehicle control unit corresponding to the train; the vehicle control unit is used for sending the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit and sending the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit; the traction executing mechanism is used for controlling the electric braking force of a vehicle where the traction executing mechanism is located according to the electric braking force information; and the brake executing mechanism is used for controlling the air braking force of the vehicle where the brake executing mechanism is located according to the air braking force information.
Specifically, the target train may be a high-speed motor train unit train; the train control unit, the vehicle control unit, the traction actuating mechanism and the brake actuating mechanism can be controllers respectively; the train control unit has a train main control function and can receive an electric braking capacity signal and an electric braking capacity signal of the traction actuating mechanism, so that the train control unit has the capacity of distributing the train air-electric composite braking force, the complexity of braking control can be reduced, and the number of the braking control units can be reduced.
Specifically, the electric braking force of the vehicle may be adjusted to be the same as the electric braking force information, and the air braking force of the vehicle may be adjusted to be the same as the air braking force information.
In an example, referring to fig. 1 and 2, the present solution provides a train control system capable of saving response time from the whole system control to the execution.
As can be seen from the above description, the train control system provided in this embodiment can realize the distribution of train braking force through the train control unit, and can realize the unified control of trains, thereby improving the efficiency and convenience of train control; specifically, on the basis of ensuring the reliability of train control, the information interaction among subsystems can be reduced, so that the control complexity can be reduced, the control instantaneity can be improved, and the train control function can be redistributed; meanwhile, the complexity of the control system can be reduced, signal interaction is reduced, and the control performance and the control real-time performance of the train can be improved. Meanwhile, the functions of the traction actuating mechanism and the brake actuating mechanism are more specific, and the device is more standardized and universal.
In order to further improve the reliability of the high-voltage system control, in an embodiment of the present application, if the train control command is a high-voltage system control command, the train control unit is further configured to control the high-voltage system of the target train according to the high-voltage system control command.
Specifically, the high voltage system control command may include a voltage to be regulated of the high voltage system, and the train control unit may control the high voltage system to regulate the voltage to be regulated.
In order to further improve the reliability of train electric energy supply, in an embodiment of the present application, if the train control command is an electric energy control command, the train control unit is further configured to provide electric energy for a train traction system and/or a train auxiliary system of the target train according to the electric energy control command.
Specifically, the power control command may include: the system to be controlled and the electric energy information to be provided; if the information of the system to be controlled comprises a train traction system, determining to provide electric energy for the train traction system of the target train and the provided electric energy can be the electric energy to be provided; and if the information of the system to be controlled comprises the train auxiliary system, determining to provide electric energy for the train auxiliary system of the target train, wherein the provided electric energy can be the electric energy to be provided.
In order to further improve the reliability of the configuration of the traction system and the train braking system, in an embodiment of the present application, if the train control command is a traction braking configuration command, the train control unit is further configured to configure the train traction system and/or the train braking system according to the traction braking configuration command.
In order to further improve the reliability of the traction and braking force setting, in an embodiment of the present application, if the train control command is a traction braking setting command, the train control unit is further configured to send the traction braking setting command to each vehicle control unit; and the vehicle control unit is also used for setting the traction force and/or the braking force of the vehicle where the vehicle control unit is located according to the traction braking setting instruction.
In order to further improve the protection of the train, in an embodiment of the present application, if the train control command is a vehicle protection command, the train control unit is further configured to send the vehicle protection command to each vehicle control unit; and the vehicle control unit is also used for performing vehicle anti-skid and anti-idle processing on the vehicle where the vehicle control unit is located according to the vehicle protection instruction.
To further improve the reliability of generating the electric braking force, in one embodiment of the present application, referring to fig. 4, each vehicle control module further comprises: a traction motor; the traction actuating mechanism in the same vehicle is connected with a traction motor; and the traction executing mechanism is used for controlling a traction motor in the same vehicle as the traction executing mechanism to generate electric braking force according to the braking force distribution instruction.
To further improve the reliability of generating the electric braking force, in one embodiment of the present application, referring to fig. 4, each vehicle control module further comprises: a brake actuator; the brake actuating mechanism and the brake actuating device in the same vehicle are connected; and the brake executing mechanism is used for controlling a brake executing device in the same vehicle as the brake executing mechanism to generate air braking force according to the vehicle brake control command.
In order to further explain the scheme, the application example of the train control system is provided, and in the application example, the train control system has train-level and vehicle-level control and monitoring functions, namely, the control and monitoring of the motor train unit or the vehicle are realized. When the vehicle is not a master control vehicle, the vehicle control unit can control the operation of high-voltage system devices of the vehicle and can control and monitor various functional subsystems such as traction, braking, an auxiliary converter, a charger, a vehicle door and an air conditioner. When the train is a master control train (namely an end train), the train control unit is used as a train control unit to evaluate the input operation of the whole train, issue a train control command and monitor the feedback state of the subsystem, and realize the control and diagnosis of the whole train of the motor train unit; the train control system is described in detail as follows:
each vehicle is provided with a vehicle control unit for executing vehicle control functions. The vehicle control unit of the end car can be upgraded to a train control unit to execute train communication management, train control tasks and vehicle control tasks, and the vehicle control units of the other cars only execute vehicle control functions. The traction/electric braking force is output by a traction execution mechanism (traction converter controller) through closed-loop control of a motor; the brake component is closed-loop controlled by a brake actuator (brake controller) to generate air braking force.
And the train control units are used for executing train communication management, train control tasks and vehicle control tasks, and the vehicle control units of the other trains only execute vehicle control functions. The traction/electric braking force is output by a traction execution mechanism (traction converter controller) through closed-loop control of a motor; the air braking force is generated by a brake actuator (brake controller) closed-loop controlling a brake component (i.e., a brake actuator).
Specifically, the train control unit uniformly controls, manages and diagnoses the train and issues a train control instruction; the train control unit may control high voltage system components of the train, traction system configuration of the train, air brake and electric brake distribution to the train, and the like.
Specifically, the train control unit may be configured to provide electrical energy for train traction, electrical energy for auxiliary systems, train traction system configuration, train braking system configuration, train traction handling, train braking force handling, and train management.
And the vehicle control unit is used for controlling, managing and diagnosing the vehicle. The vehicle control unit can generate a running direction signal of the vehicle, and perform anti-skid protection, anti-idle running processing and the like on wheels of the vehicle.
Specifically, the vehicle control unit may be used for vehicle anti-skid anti-spinning protection, the own vehicle traction force setting, and the own vehicle braking force setting.
And the traction actuating mechanism is used for controlling the traction converter and the traction motor to generate corresponding traction force and electric braking force.
Specifically, the traction actuator may be used to control the traction inverter, control traction motor speed and output torque.
And the brake actuating mechanism is used for controlling the brake actuating device to generate corresponding braking force through friction braking and eddy current braking.
In particular, the brake actuator may be used to control the brake actuator to apply and release braking force.
From the above description, the train control system provided by the application example redistributes the functions based on the forward design idea from the function requirement again, and breaks the boundary of the subsystem. The method has the advantages that the train control function is redistributed to be realized on the principle of reasonability of function distribution, reduction of control complexity and improvement of control instantaneity; compared with the prior art, the method has the advantages that better control performance and faster control response can be obtained, and the control complexity is reduced; the limit of a subsystem can be broken, and functions needing train unified control can be integrated into a train control unit for unified control, for example, the train control unit outputs a train control command, the train unit controller outputs the unit control command, and a traction execution mechanism (a traction converter controller) is directly controlled to control a motor to output traction/electric power in a closed loop manner; the brake component is closed-loop controlled by a brake actuator (brake controller) to generate air braking force.
In order to implement unified control on a train and further improve the efficiency and convenience of train control, referring to fig. 5, the present application provides a train control method, which applies the train control system, and is specifically described as follows:
step 100: the train control unit receives a train control command, and if the train control command is a braking force distribution command, the electric braking force information and the air braking force information of each train are determined according to the braking force distribution command and are sent to the train control unit corresponding to the train.
Step 100 may be divided into step 101: the train control unit receives a train control instruction; step 102: and if the train control command is a braking force distribution command, determining the electric braking force information and the air braking force information of each train according to the braking force distribution command and sending the electric braking force information and the air braking force information to the corresponding train control unit.
Step 200: the vehicle control unit sends the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit, and sends the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit.
Step 300: and the traction execution mechanism controls the electric braking force of the vehicle where the traction execution mechanism is positioned according to the electric braking force information.
Step 400: and the brake actuating mechanism controls the air braking force of the vehicle where the brake actuating mechanism is positioned according to the air braking force information.
Referring to fig. 6, in order to improve the reliability of the high voltage system control, in an embodiment of the present application, the train control method further includes:
step 500: and if the train control instruction is a high-voltage system control instruction, the train control unit controls the high-voltage system of the target train according to the high-voltage system control instruction.
To further illustrate the present solution, the present application provides an application example of a train control method, which is described in detail with reference to fig. 7 as follows:
step 1: the train control unit receives the train control command, executes the train control task, performs train communication management and train control mode management, provides electric energy for train traction, provides electric energy for an auxiliary system, completes traction and braking force management, and generates a corresponding train control command according to the train control requirement to send to the train control unit.
Step 2: the vehicle control unit receives a vehicle control command sent by the train control unit and generates a control command for controlling the execution of the execution mechanism according to the vehicle control requirement and the state of the execution mechanism.
And step 3: the traction execution mechanism receives a related control instruction of the vehicle control unit and controls the motor to generate corresponding traction force or electric braking force according to the state of the traction execution mechanism; or the brake actuating mechanism receives a control command related to the vehicle control unit and controls the brake actuating mechanism to generate corresponding air braking force according to the state of the brake actuating mechanism.
The principle and the implementation mode of the present application are explained by applying specific embodiments in the present application, and the description of the above embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A train control system, comprising:
train control unit and a plurality of vehicle control module, every vehicle control module includes: the system comprises a vehicle control unit, a traction actuating mechanism and a brake actuating mechanism; the train control unit is arranged in an end train of the target train; each vehicle control module is respectively arranged in different vehicles of the target train; the train control unit is respectively connected with each vehicle control unit; in the same vehicle control module, the vehicle control unit is respectively connected with a traction actuating mechanism and a brake actuating mechanism;
the train control unit is used for receiving a train control instruction, determining electric braking force information and air braking force information of each train according to the braking force distribution instruction if the train control instruction is a braking force distribution instruction, and sending the electric braking force information and the air braking force information to the vehicle control unit corresponding to the train;
the vehicle control unit is used for sending the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit and sending the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit;
the traction executing mechanism is used for controlling the electric braking force of a vehicle where the traction executing mechanism is located according to the electric braking force information;
and the brake executing mechanism is used for controlling the air braking force of the vehicle where the brake executing mechanism is located according to the air braking force information.
2. The train control system according to claim 1, wherein if the train control command is a high voltage system control command, the train control unit is further configured to control a high voltage system of the target train according to the high voltage system control command.
3. The train control system of claim 1, wherein if the train control command is an electrical energy control command, the train control unit is further configured to provide electrical energy to a train traction system and/or a train auxiliary system of the target train according to the electrical energy control command.
4. The train control system of claim 1, wherein the train control unit is further configured to configure a train traction system and/or a train braking system according to the traction brake configuration command if the train control command is a traction brake configuration command.
5. The train control system of claim 1, wherein the train control unit is further configured to send the traction brake setting command to each vehicle control unit if the train control command is a traction brake setting command;
and the vehicle control unit is also used for setting the traction force and/or the braking force of the vehicle where the vehicle control unit is located according to the traction braking setting instruction.
6. The train control system of claim 1, wherein if the train control command is a vehicle protection command, the train control unit is further configured to send the vehicle protection command to each vehicle control unit;
and the vehicle control unit is also used for performing vehicle anti-skid and anti-idle processing on the vehicle where the vehicle control unit is located according to the vehicle protection instruction.
7. The train control system of claim 1, wherein each vehicle control module further comprises: a traction motor; the traction actuating mechanism in the same vehicle is connected with a traction motor;
and the traction executing mechanism is used for controlling a traction motor in the same vehicle as the traction executing mechanism to generate electric braking force according to the braking force distribution instruction.
8. The train control system of claim 1, wherein each vehicle control module further comprises: a brake actuator; the brake actuating mechanism and the brake actuating device in the same vehicle are connected;
and the brake executing mechanism is used for controlling a brake executing device in the same vehicle as the brake executing mechanism to generate air braking force according to the vehicle brake control command.
9. A train control method, characterized by applying the train control system according to any one of claims 1 to 8, the method comprising:
the train control unit receives a train control command, and if the train control command is a braking force distribution command, the electric braking force information and the air braking force information of each train are determined according to the braking force distribution command and are sent to the train control unit corresponding to the train;
the vehicle control unit sends the electric braking force information to a traction actuating mechanism in the same vehicle as the vehicle control unit, and sends the air braking force information to a brake actuating mechanism in the same vehicle as the vehicle control unit;
the traction actuating mechanism controls the electric braking force of the vehicle where the traction actuating mechanism is located according to the electric braking force information;
and the brake actuating mechanism controls the air braking force of the vehicle where the brake actuating mechanism is positioned according to the air braking force information.
10. The train control method according to claim 9, further comprising:
and if the train control instruction is a high-voltage system control instruction, the train control unit controls the high-voltage system of the target train according to the high-voltage system control instruction.
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