CN109094547A - City railway vehicle braking force distribution method and device - Google Patents
City railway vehicle braking force distribution method and device Download PDFInfo
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- CN109094547A CN109094547A CN201810847099.7A CN201810847099A CN109094547A CN 109094547 A CN109094547 A CN 109094547A CN 201810847099 A CN201810847099 A CN 201810847099A CN 109094547 A CN109094547 A CN 109094547A
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- electric braking
- motor
- braking force
- car
- air brake
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
-
- 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
- B60T13/58—Combined or convertible systems
-
- 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
Abstract
The present invention provides a kind of city railway vehicle braking force distribution method and device.This method comprises: obtaining MVB network signal and hard signal, the available motor-car of all electric braking forces is determined according to MVB network signal and hard signal, and the sum of the electric braking force ability value of the available motor-car of all electric braking forces is calculated according to the electric braking force ability value of the available motor-car number of all electric braking forces and each motor-car, when determining that train needs to apply air brake force, the air brake force target value of application needed for calculating train according to the target braking force of the sum of electric braking force ability value of the available motor-car of all electric braking forces and train, and according to air brake force target value in train mean allocation air brake force, the target braking force of train is calculated according to braking deceleration instruction.To can avoid frequent inflation exhaust caused by instructing constantly variation, the variation of actually applied electric braking force due to braking deceleration and the abrasion of unnecessary brake shoe.
Description
Technical field
The present invention relates to train braking field more particularly to a kind of city railway vehicle braking force distribution method and devices.
Background technique
In order to guarantee that train high-speed cruising safety, the functional reliability of the braking system of train become particularly important, brakes
System is the safety guarantee of train high-speed cruising, needs to design good control strategy to guarantee secure parking.
Existing subway train (subway) is generally 6 marshallings, and Fig. 1 is the structure of the braking system of existing subway train
Schematic diagram, as shown in Figure 1, its braking system is by 2 controller local area networks (Controller Area Network, CAN)
Unit composition, each CAN unit include 2 motor-cars and 1 trailer, include two kinds of control dresses of electric braking and air damping on motor-car
It sets, there was only a kind of control device of air damping on trailer.The "A" end of car of an end of 1 vehicle and 3 vehicles configures net in each CAN unit
Valve is closed, has one in the 2 gateway valves configured for primary gateway valve, in primary gateway valve failure by another gateway valve come work,
Remaining configuration smart valve.The realization of composite braking is based on vehicle multifunctional vehicle bus (Multifunction Vehicle
Bus, MVB) network realizes that two CAN units are completely independent unit, brake force is respectively calculated and apply, in two CAN
The distribution of brake force is carried out in unit by respective primary gateway valve.
The process of a kind of existing braking force distribution method are as follows: adopted by the central control unit being arranged on the head vehicle on both sides
Collect the angle signal of handle, and the braking deceleration converted according to angle signal is instructed into (from 0~100% full service braking)
It is sent to primary gateway valve, primary gateway valve calculates train target braking force according to the braking deceleration instruction received.Train is preferential
Using electric braking force, the traction control unit on each motor-car calculates train electric braking force, passes through MVB by central control unit
The actually applied electric braking force of train is sent to primary gateway valve by network, when the actually applied electric braking force of train is equal to train mesh
When marking brake force, train does not apply air brake force, when the actually applied electric braking force of train is less than train target braking force,
Train needs to apply air brake force, and the air brake force of required application passes through train target braking force and train by primary gateway valve
The difference of actually applied electric braking force is calculated, and finally averagely supplements air in each vehicle by the brak control unit of train
Brake force is until meet train target braking force or vehicle reaches and sticks together limitation.
In the above method, the air brake force of the application as needed for train by primary gateway valve by train target braking force with
The difference of the actually applied electric braking force of train is calculated, and since braking deceleration instructs constantly variation, applies needed for train
Air brake force constantly change with the actually applied electric braking force of train, will lead to frequent inflation exhaust, causing need not
The brake shoe abrasion wanted.
Summary of the invention
The present invention provides a kind of city railway vehicle braking force distribution method and device, to solve due to braking deceleration instruction not
The problem of caused frequent inflation exhaust and unnecessary brake shoe are worn away when disconnected variation.
In a first aspect, the present invention provides a kind of city railway vehicle braking force distribution method, comprising:
MVB network signal and hard signal are obtained, the MVB network signal includes: braking deceleration instruction, each motor-car electricity
Brake force whether the electric braking force ability value of available signal and each motor-car, the hard signal include each motor-car electric braking force whether
Available signal；
The available motor-car of all electric braking forces is determined according to the MVB network signal and the hard signal, and according to
It is available that the electric braking force ability value of all available motor-car numbers of electric braking force and each motor-car calculates all electric braking forces
The sum of the electric braking force ability value of motor-car；
When determining that train needs to apply air brake force, according to the electric braking force ability of the available motor-car of all electric braking forces
The air brake force target value of application needed for the target braking force of the sum of value and train calculates train, and according to the air damping
The target braking force of power target value mean allocation air brake force in train, the train is instructed according to the braking deceleration
It is calculated.
Optionally, the acquisition hard signal, comprising:
The hard signal is obtained according to the rigid line through full train, the hard signal is high level or low level.
Optionally, described to determine that all electric braking forces are available according to the MVB network signal and the hard signal
Motor-car, comprising:
Motor-car electric braking force in the MVB network signal whether the motor-car electricity system in available signal and the hard signal
Power is when whether available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in the MVB network signal whether the motor-car electricity system in available signal and the hard signal
Power whether available signal at least one show it is unavailable when, it is determined that motor-car electric braking force is unavailable.
Optionally, the target according to the sum of electric braking force ability value of the available motor-car of all electric braking forces with train
Brake force calculates the air brake force target value applied needed for train, comprising:
Calculate the target braking force of the train and the sum of the electric braking force ability value of the available motor-car of all electric braking forces
Difference, obtain the air brake force target value applied needed for train.
Optionally, the method also includes:
Determine whether train needs to apply air brake force according to preset rules；
The preset rules are as follows:
If the sum of electric braking force ability value of all available motor-cars of electric braking force is greater than or equal to the target of the train
Brake force determines that train does not need to apply air brake force；
If the sum of electric braking force ability value of all available motor-cars of electric braking force is less than the target braking force of the train,
Determine that train needs to apply air brake force.
It is optionally, described according to air brake force target value mean allocation air brake force in train, comprising:
Calculating air brake force available bogie number N, N is positive integer, in available turn of N number of air brake force
To air brake force target value described in mean allocation between frame, wherein the air brake force of distribution is greater than to the ability of bogie
The bogie for being worth or sticking together limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution
Equal to bogie ability value or stick together limitation, and by remaining air brake force mean allocation to less than ability value or stick together
The bogie of limitation, until train meets the air brake force target value or the air brake force of all bogies is equal to energy
Force value sticks together limitation.
Second aspect, the present invention provide a kind of city railway vehicle braking force distribution device, comprising:
Module is obtained, for obtaining MVB network signal and hard signal, the MVB network signal includes: braking deceleration
Instruction, each motor-car electric braking force whether the electric braking force ability value of available signal and each motor-car, the hard signal includes each dynamic
Vehicle electric braking force whether available signal；
First processing module, for determining all electric braking forces according to the MVB network signal and the hard signal
Available motor-car, and calculated according to the electric braking force ability value of the available motor-car number of all electric braking forces and each motor-car
The sum of the electric braking force ability value of all available motor-cars of electric braking force；
Second processing module, it is available according to all electric braking forces when for determining that train needs to apply air brake force
The air brake force target value of application needed for the target braking force of the sum of electric braking force ability value of motor-car and train calculates train,
And according to air brake force target value mean allocation air brake force in train, the target braking force of the train according to
The braking deceleration instruction is calculated.
Optionally, the acquisition module is used for:
The hard signal is obtained according to the rigid line through full train, the hard signal is high level or low level.
Optionally, the first processing module is used for:
Motor-car electric braking force in the MVB network signal whether the motor-car electricity system in available signal and the hard signal
Power is when whether available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in the MVB network signal whether the motor-car electricity system in available signal and the hard signal
Power whether available signal at least one show it is unavailable when, it is determined that motor-car electric braking force is unavailable.
Optionally, the Second processing module is used for:
Calculating air brake force available bogie number N, N is positive integer, in available turn of N number of air brake force
To air brake force target value described in mean allocation between frame, wherein the air brake force of distribution is greater than to the ability of bogie
The bogie for being worth or sticking together limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution
Equal to bogie ability value or stick together limitation, and by remaining air brake force mean allocation to less than ability value or stick together
The bogie of limitation, until train meets the air brake force target value or the air brake force of all bogies is equal to energy
Force value sticks together limitation.
City railway vehicle braking force distribution method and device provided by the invention is believed by obtaining MVB network signal and rigid line
Number, the available motor-car of all electric braking forces is determined according to MVB network signal and hard signal, and can according to all electric braking forces
It is available dynamic that the electric braking force ability value of each motor-car in motor-car number and MVB network signal calculates all electric braking forces
The sum of electric braking force ability value of vehicle can according to all electric braking forces finally when determining that train needs to apply air brake force
The air brake force mesh of application needed for the target braking force of the sum of electric braking force ability value of motor-car and train calculates train
Scale value, and according to air brake force target value in train mean allocation air brake force.To need to apply air in train
It is the target braking force meter according to the sum of electric braking force ability value of the available motor-car of all electric braking forces and train when brake force
The air brake force target value applied needed for obtaining train is calculated, without applying air according to the actually applied electric braking force of train
Brake force, therefore, when can avoid instructing constantly variation due to braking deceleration caused frequent inflation exhaust with it is unnecessary
Brake shoe abrasion.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention one
A little embodiments for those of ordinary skill in the art without any creative labor, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the braking system of existing subway train；
Fig. 2 is the flow chart of city railway vehicle braking force distribution embodiment of the method one provided by the invention；
Fig. 3 is the flow chart of city railway vehicle braking force distribution embodiment of the method two provided by the invention；
Fig. 4 is the flow chart of mean allocation air brake force embodiment in train provided by the invention；
Fig. 5 is the structural schematic diagram of city railway vehicle braking force distribution Installation practice provided by the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing in the present invention, to this
Technical solution in invention is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
Fig. 2 is the flow chart of city railway vehicle braking force distribution embodiment of the method one provided by the invention, as shown in Fig. 2, this
The executing subject of embodiment can be primary gateway valve, and the method for the present embodiment may include:
S101, MVB network signal and hard signal are obtained, MVB network signal includes: braking deceleration instruction, each motor-car
Electric braking force whether the electric braking force ability value of available signal and each motor-car, hard signal includes whether each motor-car electric braking force may be used
Use signal.
Specifically, MVB network signal is obtained, specifically can be and receive what central control unit was sent by MVB network
MVB network signal, central control unit are arranged in the head vehicle on both sides, and central control unit is connect by rigid line with handle,
When network is normal, central control unit acquires the angle signal of handle, and angle signal is converted to braking deceleration instruction and is sent
Primary gateway valve is given, primary gateway valve can be braked according to the target that train is calculated in full column load information and braking deceleration instruction
Power.
In the present embodiment, MVB network signal include: braking deceleration instruction, each motor-car electric braking force whether available signal
With the electric braking force ability value of each motor-car, wherein the electric braking ability value of motor-car is relatively-stationary, during train operation
It is general constant.
In the present embodiment, hard signal is obtained, it can be with are as follows: hard signal, rigid line are obtained according to the rigid line through full train
Signal is high level or low level.Specifically, the traction control unit of each motor-car is by the whether available letter of electric braking force
It number is transferred on the rigid line of full train, primary gateway valve is by reading hard signal it can be seen that each motor-car electric braking force whether may be used
With for example, the hard signal only has 2 kinds of instructions: 0: low level indicates that motor-car electric braking force is unavailable, and not available motor-car exists
It is used when distributing air brake force as trailer；1: high level indicates that motor-car electric braking force is available.
S102, the available motor-car of all electric braking forces is determined according to MVB network signal and hard signal, and according to all
The electric braking force ability value of the available motor-car number of electric braking force and each motor-car calculates the available motor-car of all electric braking forces
The sum of electric braking force ability value.
In the present embodiment, determine that all electric braking forces are available dynamic according to MVB network signal and hard signal in S102
Vehicle is specifically as follows:
Motor-car electric braking force in MVB network signal whether the motor-car electric braking force in available signal and hard signal whether
When available signal all shows available, it is determined that motor-car electric braking force is available；Whether the motor-car electric braking force in MVB network signal may be used
With the motor-car electric braking force in signal and hard signal whether available signal at least one show it is unavailable when, it is determined that motor-car
Electric braking force is unavailable.It is exactly, as long as there is an instruction motor-car electric braking force can not in hard signal and MVB network signal
With then primary gateway valve determines that the electric braking force of the motor-car is unavailable.
Specifically, it is determined that calculating the available motor-car of all electric braking forces after the available motor-car of all electric braking forces out
The sum of electric braking force ability value, for example, the available motor-car number of all electric braking forces is M, the electric braking force ability of i-th motor-car
Value is Qi, then the sum of electric braking force ability value of the available motor-car of all electric braking forces is Q1+...QM。
S103, when determining that train needs to apply air brake force, according to the electric braking of the available motor-car of all electric braking forces
The air brake force target value of application needed for the target braking force of the sum of power ability value and train calculates train, and according to air system
The target braking force of power target value mean allocation air brake force in train, train is calculated according to braking deceleration instruction
It arrives.
In the present embodiment, train includes motor-car and trailer, when determining that train needs to apply air brake force, according to all electricity
The air of application needed for the target braking force of the sum of electric braking force ability value of the available motor-car of brake force and train calculates train
Brake force target value, is specifically as follows:
Calculate the difference of the sum of the target braking force of train and the electric braking force ability value of the available motor-car of all electric braking forces
Value obtains the air brake force target value applied needed for train.
Further, the method for the present embodiment further include: determine whether train needs to apply air system according to preset rules
Power, wherein preset rules are as follows: if the sum of electric braking force ability value of the available motor-car of all electric braking forces is greater than or equal to column
The target braking force of vehicle determines that train does not need to apply air brake force；If the electric braking of all available motor-cars of electric braking force
The sum of power ability value is less than the target braking force of train, determines that train needs to apply air brake force.
In the present embodiment, according to air brake force target value in train mean allocation air brake force, be specifically as follows:
Calculating air brake force available bogie number N, N is positive integer, in the available bogie of N number of air brake force
Between mean allocation air brake force target value, wherein by the air brake force of distribution be greater than bogie ability value or stick together
The bogie of limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution, which is equal to, to be turned to
The ability value of frame sticks together limitation, and by remaining air brake force mean allocation to less than ability value or sticks together turning for limitation
To frame, until train meets the air brake force target value or the air brake force of all bogies is equal to ability value or glutinous
Limitation.
Specifically, calculate the available bogie number N of air brake force, the available bogie of N number of air brake force it
Between mean allocation air brake force target value, by the air brake force of distribution be greater than bogie ability value or stick together limitation turn
Air brake force is carried out to frame to redistribute according to the rule redistributed, and records remaining unappropriated air brake force, then
It is secondary that remaining unappropriated air brake force is assigned to air brake force is available and not up to ability value or stick together the steering of limitation
On frame, so circulation is until surplus air brake force is zero or all bogies cannot reallocate air brake force.
City railway vehicle braking force distribution method provided in this embodiment, by obtaining MVB network signal and hard signal, root
The available motor-car of all electric braking forces is determined according to MVB network signal and hard signal, and available according to all electric braking forces
The electric braking force ability value of each motor-car in motor-car number and MVB network signal calculates the available motor-car of all electric braking forces
The sum of electric braking force ability value, it is available according to all electric braking forces finally when determining that train needs to apply air brake force
The air brake force target value of application needed for the target braking force of the sum of electric braking force ability value of motor-car and train calculates train,
And according to air brake force target value in train mean allocation air brake force.To need to apply air damping in train
It when power, is calculated according to the sum of electric braking force ability value of the available motor-car of all electric braking forces and the target braking force of train
To the air brake force target value of application needed for train, without applying air damping according to the actually applied electric braking force of train
Power, therefore, caused frequent inflation exhaust and unnecessary brake shoe when can avoid instructing constantly variation due to braking deceleration
Abrasion.
A specific embodiment is used below, and the technical solution of embodiment of the method shown in Fig. 2 is described in detail.
Fig. 3 is the flow chart of city railway vehicle braking force distribution embodiment of the method two provided by the invention, and the present embodiment is to hold
Row main body is is illustrated for primary gateway valve, as shown in figure 3, the method for the present embodiment may include:
S201, between MVB network failure or CAN1 and CAN2 without communication when, the brak control unit of each vehicle applies
100% pure air full service braking.
S202, when network is normal, central control unit in head vehicle sends MVB net to primary gateway valve by MVB network
Network signal, MVB network signal include: braking deceleration instruction, each motor-car electric braking force whether the electricity of available signal and each motor-car
Brake force ability value.
Specifically, when network is normal, central control unit acquires the angle signal of handle, and angle signal is converted to system
Dynamic deceleration instruction is sent to primary gateway valve, and primary gateway valve can be calculated according to full column load information and braking deceleration instruction
The target braking force of train.
S203, each motor-car traction control unit the whether available signal of electric braking force is transferred to through full train
Rigid line on, primary gateway valve according to through full train rigid line obtain hard signal, hard signal includes each motor-car electric braking force
Whether available signal.
Specifically, primary gateway valve is by reading hard signal it can be seen that whether each motor-car electric braking force can be used, for example, this is hard
Line signal only has 2 kinds of instructions: 0: low level indicates that motor-car electric braking force is unavailable, and not available motor-car is in distribution air damping
It is used when power as trailer；1: high level indicates that motor-car electric braking force is available.
S204, primary gateway valve are braked according to the target that train is calculated in full column load information and braking deceleration instruction
Power.
S205, primary gateway valve determine the available motor-car of all electric braking forces according to MVB network signal and hard signal.
Specifically, the motor-car electric braking force in MVB network signal whether the motor-car electricity system in available signal and hard signal
Power is when whether available signal all shows available, it is determined that motor-car electric braking force is available；Motor-car electric braking in MVB network signal
Power whether the motor-car electric braking force in available signal and hard signal whether available signal at least one when showing unavailable, then
It determines that motor-car electric braking force is unavailable, is used as trailer.
S206, primary gateway valve are according to the electric braking force ability value meter of the available motor-car number of all electric braking forces and each motor-car
The sum of the electric braking force ability value for calculating the available motor-car of all electric braking forces determines whether train needs to apply according to preset rules
Add air brake force.
Specifically, if the sum of electric braking force ability value of the available motor-car of all electric braking forces is greater than or equal to the mesh of train
Brake force is marked, determines that train does not need to apply air brake force；If the electric braking force ability of all available motor-cars of electric braking force
The sum of value is less than the target braking force of train, determines that train needs to apply air brake force.
S207, primary gateway valve calculate the target braking force of train and the electric braking force energy of the available motor-car of all electric braking forces
The difference of the sum of force value obtains the air brake force target value applied needed for train, according to air brake force target value in train
Interior mean allocation air brake force.
In the present embodiment, according to air brake force target value in train mean allocation air brake force, specifically: calculate
The available bogie number N of air brake force, the mean allocation air brake force between the available bogie of N number of air brake force
Target value, by the air brake force of distribution be greater than bogie ability value or stick together limitation bogie carry out air brake force by
It is redistributed according to the rule redistributed, and records remaining unappropriated air brake force, again by remaining unappropriated air
Braking force distribution is available to air brake force and not up to ability value or sticks together on the bogie of limitation, and so circulation is until remaining
Air brake force is zero or all bogies cannot reallocate air brake force.It is flat using combining Fig. 4 that this is described in detail below
Equal assigning process.
Fig. 4 is the flow chart of mean allocation air brake force embodiment in train provided by the invention, as shown in figure 4,
The method of mean allocation air brake force includes: in train
S301, all air brake forces are initialized as 0, calculate the available bogie number count of air brake force, such as
Count=12.
S302, unappropriated air brake force F-rem=air brake force target value is determined.
S303, calculating surplus air brake force average value are current=F-rem/count, by unappropriated air system
Power F-rem is set to 0 (F-rem=0), i=1.
S304, judge whether i is less than or equal to 12, if so then execute S305, return judge whether F-rem is greater than 0 if not
And the available bogie number count of air brake force is not equal to 0.
Whether S305, the air brake force for judging that i-th of bogie air brake force is available and distributing are not up to ability value
Or limitation is sticked together, if so then execute S306, if otherwise executing S309.
S306, air brake force F-ep-B (i)=F-ep-B (i)+current is distributed for i-th of bogie.
S307, judge whether the air brake force of i-th of bogie distribution is more than ability value or sticks together limitation, if then
S308 is executed, if otherwise executing S309.
S308, calculate i-th bogie distribution air brake force exceed value F-Ep-shift, by i-th of bogie
Distribution air brake force is ability value or sticks together limitation, recalculates unappropriated air brake force F-rem=F-rem+F-
Ep-shift, count=count-1.
S309, i=i+1.
City railway vehicle braking force distribution method provided in this embodiment, by obtaining MVB network signal and hard signal,
MVB network signal include: braking deceleration instruction, each motor-car electric braking force whether the electric braking force energy of available signal and each motor-car
Force value, hard signal include each motor-car electric braking force whether available signal, institute is determined according to MVB network signal and hard signal
There is the available motor-car of electric braking force, according to the electric braking force ability value meter of the available motor-car number of all electric braking forces and each motor-car
The sum of the electric braking force ability value of the available motor-car of all electric braking forces is calculated, if the electricity system of the available motor-car of all electric braking forces
The sum of kinetic force force value is greater than or equal to the target braking force of train, determines that train does not need to apply air brake force；If all
The sum of electric braking force ability value of the available motor-car of electric braking force is less than the target braking force of train, and it is empty to determine that train needs to apply
Gas brake force, when determining that train needs to apply air brake force, the target braking force and all electric braking forces for calculating train can
The difference of the sum of the electric braking force ability value of motor-car obtains the air brake force target value applied needed for train, according to sky
Gas brake force target value mean allocation air brake force in train.To be root when train needs to apply air brake force
Train institute is calculated in the target braking force of the sum of electric braking force ability value according to the available motor-car of all electric braking forces and train
The air brake force target value that need to apply, without applying air brake force according to the actually applied electric braking force of train, therefore,
When solving variation continuous due to braking deceleration instruction, braking system cannot in time be redistributed air brake force,
Electric braking interacts less with air damping, is vented and the abrasion of unnecessary brake shoe than avoiding frequently inflating.
Fig. 5 is the structural schematic diagram of city railway vehicle braking force distribution Installation practice provided by the invention, as shown in figure 5,
The device of the present embodiment may include: to obtain module 11, first processing module 12 and Second processing module 13, wherein
Module 11 is obtained for obtaining MVB network signal and hard signal, MVB network signal includes: that braking deceleration refers to
Enable, each motor-car electric braking force whether the electric braking force ability value of available signal and each motor-car, hard signal includes each motor-car electricity system
Power whether available signal.
First processing module 12 is used to determine that all electric braking forces are available dynamic according to MVB network signal and hard signal
Vehicle, and all electric braking forces are calculated according to the electric braking force ability value of the available motor-car number of all electric braking forces and each motor-car
The sum of electric braking force ability value of available motor-car.
It is available according to all electric braking forces when Second processing module 13 is used to determine that train needs to apply air brake force
The air brake force target value of application needed for the target braking force of the sum of electric braking force ability value of motor-car and train calculates train,
And according to air brake force target value in train mean allocation air brake force, the target braking force of train is according to braking deceleration
Degree instruction is calculated.
Optionally, module 11 is obtained to be used for:
Hard signal is obtained according to the rigid line through full train, hard signal is high level or low level.
Optionally, first processing module 12 is used for:
Motor-car electric braking force in MVB network signal whether the motor-car electric braking force in available signal and hard signal whether
When available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in MVB network signal whether the motor-car electric braking force in available signal and hard signal whether
When at least one display of available signal is unavailable, it is determined that motor-car electric braking force is unavailable.
Optionally, first processing module 12 is used for:
Motor-car electric braking force in MVB network signal whether the motor-car electric braking force in available signal and hard signal whether
When available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in MVB network signal whether the motor-car electric braking force in available signal and hard signal whether
When at least one display of available signal is unavailable, it is determined that motor-car electric braking force is unavailable.
Optionally, Second processing module 13 is used for:
Calculate the difference of the sum of the target braking force of train and the electric braking force ability value of the available motor-car of all electric braking forces
Value obtains the air brake force target value applied needed for train.
Optionally, Second processing module 13 is used for:
Calculating air brake force available bogie number N, N is positive integer, in the available bogie of N number of air brake force
Between mean allocation air brake force target value, wherein by the air brake force of distribution be greater than bogie ability value or stick together
The bogie of limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution, which is equal to, to be turned to
The ability value of frame sticks together limitation, and by remaining air brake force mean allocation to less than ability value or sticks together turning for limitation
To frame, until train meets the air brake force target value or the air brake force of all bogies is equal to ability value or glutinous
Limitation.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle class
Seemingly, details are not described herein again.
City railway vehicle braking force distribution device provided in this embodiment, by acquisition module acquisition MVB network signal and firmly
Line signal, first processing module determine the available motor-car of all electric braking forces, and root according to MVB network signal and hard signal
It is calculated according to the electric braking force ability value of each motor-car in the available motor-car number of all electric braking forces and MVB network signal all
The sum of the electric braking force ability value of the available motor-car of electric braking force, the second last processing module are determining that train needs to apply air
When brake force, calculated according to the sum of electric braking force ability value of the available motor-car of all electric braking forces and the target braking force of train
The air brake force target value applied needed for train, and the mean allocation air damping in train according to air brake force target value
Power.To be the electric braking force ability according to the available motor-car of all electric braking forces when train needs to apply air brake force
The air brake force target value of application needed for train is calculated in the target braking force of the sum of value and train, does not have to according to train reality
The electric braking force that border applies applies air brake force, therefore, can avoid causing when instructing constantly variation due to braking deceleration
Frequent inflation exhaust and unnecessary brake shoe abrasion.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of city railway vehicle braking force distribution method characterized by comprising
MVB network signal and hard signal are obtained, the MVB network signal includes: braking deceleration instruction, each motor-car electric braking
Power whether the electric braking force ability value of available signal and each motor-car, the hard signal includes whether each motor-car electric braking force can be used
Signal；
The available motor-car of all electric braking forces is determined according to the MVB network signal and the hard signal, and according to all
It is available dynamic that the electric braking force ability value of the available motor-car number of electric braking force and each motor-car calculates all electric braking forces
The sum of electric braking force ability value of vehicle；
When determining that train needs to apply air brake force, according to the electric braking force ability value of the available motor-car of all electric braking forces it
With calculate train with the target braking force of train needed for application air brake force target value, and according to the air brake force mesh
Scale value mean allocation air brake force in train, the target braking force of the train is instructed according to the braking deceleration to be calculated
It obtains.
2. the method according to claim 1, wherein the acquisition hard signal, comprising:
The hard signal is obtained according to the rigid line through full train, the hard signal is high level or low level.
3. the method according to claim 1, wherein described believe according to the MVB network signal and the rigid line
Number determine the available motor-car of all electric braking forces, comprising:
Motor-car electric braking force in the MVB network signal whether the motor-car electric braking force in available signal and the hard signal
When whether available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in the MVB network signal whether the motor-car electric braking force in available signal and the hard signal
When whether at least one in available signal shows unavailable, it is determined that motor-car electric braking force is unavailable.
4. the method according to claim 1, wherein described make according to the electricity of the available motor-car of all electric braking forces
The air brake force target value of application needed for the target braking force of the sum of kinetic force force value and train calculates train, comprising:
Calculate the difference of the sum of the target braking force of the train and the electric braking force ability value of the available motor-car of all electric braking forces
Value obtains the air brake force target value applied needed for train.
5. method according to claim 1-4, which is characterized in that the method also includes:
Determine whether train needs to apply air brake force according to preset rules；
The preset rules are as follows:
If the target that the sum of electric braking force ability value of all available motor-cars of electric braking force is greater than or equal to the train is braked
Power determines that train does not need to apply air brake force；
If the sum of electric braking force ability value of all available motor-cars of electric braking force is less than the target braking force of the train, determine
Train needs to apply air brake force.
6. method according to claim 1-4, which is characterized in that described according to the air brake force target value
The mean allocation air brake force in train, comprising:
Calculating air brake force available bogie number N, N is positive integer, in N number of available bogie of air brake force
Between air brake force target value described in mean allocation, wherein by the air brake force of distribution be greater than bogie ability value or
The bogie for sticking together limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution is equal to
The ability value of bogie sticks together limitation, and by remaining air brake force mean allocation to less than ability value or sticks together limitation
Bogie, until the air brake force that train meets the air brake force target value or all bogies is equal to ability value
Or stick together limitation.
7. a kind of city railway vehicle braking force distribution device characterized by comprising
Module is obtained, for obtaining MVB network signal and hard signal, the MVB network signal includes: that braking deceleration refers to
Enable, each motor-car electric braking force whether the electric braking force ability value of available signal and each motor-car, the hard signal includes each motor-car
Electric braking force whether available signal；
First processing module, for determining that all electric braking forces are available according to the MVB network signal and the hard signal
Motor-car, and calculated according to the electric braking force ability value of the available motor-car number of all electric braking forces and each motor-car all
The sum of the electric braking force ability value of the available motor-car of electric braking force；
Second processing module, when for determining that train needs to apply air brake force, according to the available motor-car of all electric braking forces
The sum of electric braking force ability value and train target braking force calculate train needed for application air brake force target value, and root
According to air brake force target value mean allocation air brake force in train, the target braking force of the train is according to
Braking deceleration instruction is calculated.
8. device according to claim 7, which is characterized in that the acquisition module is used for:
The hard signal is obtained according to the rigid line through full train, the hard signal is high level or low level.
9. device according to claim 7, which is characterized in that the first processing module is used for:
Motor-car electric braking force in the MVB network signal whether the motor-car electric braking force in available signal and the hard signal
When whether available signal all shows available, it is determined that motor-car electric braking force is available；
Motor-car electric braking force in the MVB network signal whether the motor-car electric braking force in available signal and the hard signal
Whether available signal at least one show it is unavailable when, it is determined that motor-car electric braking force is unavailable.
10. according to the described in any item devices of claim 7-9, which is characterized in that the Second processing module is used for:
Calculating air brake force available bogie number N, N is positive integer, in N number of available bogie of air brake force
Between air brake force target value described in mean allocation, wherein by the air brake force of distribution be greater than bogie ability value or
The bogie for sticking together limitation carries out air brake force and redistributes, the rule redistributed are as follows: the air brake force of distribution is equal to
The ability value of bogie sticks together limitation, and by remaining air brake force mean allocation to less than ability value or sticks together limitation
Bogie, until the air brake force that train meets the air brake force target value or all bogies is equal to ability value
Or stick together limitation.
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| CN201810847099.7A CN109094547A (en) | 2018-07-27 | 2018-07-27 | City railway vehicle braking force distribution method and device |
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