CN104890530B - Method for correcting uneven wear of wheel sets - Google Patents
Method for correcting uneven wear of wheel sets Download PDFInfo
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- CN104890530B CN104890530B CN201410081728.1A CN201410081728A CN104890530B CN 104890530 B CN104890530 B CN 104890530B CN 201410081728 A CN201410081728 A CN 201410081728A CN 104890530 B CN104890530 B CN 104890530B
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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
- 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
- B60L15/2009—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 for braking
-
- 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
-
- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/42—Electrical machine applications with use of more than one motor
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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
- B60L2240/10—Vehicle control parameters
- B60L2240/12—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
- B60L2240/421—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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- 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
- B60L2240/80—Time limits
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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
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/145—Structure borne vibrations
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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
- Y02T10/64—Electric machine technologies in electromobility
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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)
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Abstract
The invention discloses a method for correcting uneven wear of wheel sets. The method comprises the steps of inputting effective wheel diameter values of the wheel sets; judging whether a traction/brake handle is in a traction area or a brake area, collecting level signals of a motorman controller and transmitting the signals to a locomotive control system, wherein the locomotive control system calculates the wheel circumference traction force/brake force correction factor of the nth axle wheel set and, according to a correction system, calculates the corrected wheel circumference traction force/brake force fwheel_n of the nth axle wheel set and the torque output by a traction/brake motor corresponding to the nth axle. According to the method, uneven wear of the wheel sets can be corrected so that the service life of the wheel sets can be prolonged.
Description
Technical field
The present invention relates to a kind of control method of automatic reparation, and in particular to wheel is repaired automatically to uneven wear
Control method.
Background technology
Electric locomotive requires difference according to locomotive for the control strategy of motor, can typically be divided into axle control, frame control or car control.
When locomotive is run under existing these three control modes, it may appear that different degrees of wheel diameter deviation, mainly include：One is to adopt axle
Because of driving force when the locomotive that control drives or frame control drives normally runs（Traction is braked）Cause not of uniform size, wheel wear is not
Unanimously；Two wheel treads that are train wheels after with a period of time are because scratch, crackle, stripping etc. occur different abrasions；
Three is to hinder caused wheel tread uneven wear for some reason.The abrasion of train wheel can mainly bring following harm：One is scratch
Wheel to can constantly impact rail in operation, speed more HI high impact effect is bigger, causes rail level to injure by a crashing object；Two is operating machine
Car in traction or Speed Braking, often in wheel causes idle running again or slides to abrasion, and destruction is drawn or brakes opportunity
The wheel track of car sticks together；Three is the quality state that flat sliding, the stripping caused judder in locomotive operation affects EEF bogie.
In order to avoid these harm, in locomotive regular maintenance, wheel tread must be made to recover again smooth to wheel to carrying out Xuan wheel process
It is smooth.Often process through Xuan wheel, wheel will diminish to wheel footpath, as the number of times that Xuan takes turns increases, take turns to wheel footpath will enter
One step reduces.Due to a variety of causes, the degree of wear between train wheel is often different.Some of them wheel to abrasion condition more
Seriously, number of times is more or Xuan wheel thickness is deeper for Xuan wheels, cause with other wheels to wheel footpath compared with there is different degrees of deviation.
Existing general electric locomotive is typically made up of 2~4 bogies（It is not excluded for other shaft types）, each bogie includes
2 or 3 traction electric machines, every traction electric machine drive a wheel to operation., in running, control system is by department for locomotive
Owner's controller handle level signal of change goes out the value of thrust that locomotive should be exported；Further according to the currently available traction electric machine number of locomotive
Gauge calculates the output torque of each traction electric machine.It is a kind of relatively simple mode that locomotive engine output torque is calculated, and is not had
A series of impacts that wheel diameter variation is brought after considering locomotive operation, it is believed that each wheel is identical to the traction/braking force for exporting,
Therefore have ignored impact of the pull strength output to wheel to wearing and tearing.Damped condition is also thus, not accounting for actual wheel to abrasion etc.
The impact of situation.Caused result is that, in car load wheel pair, wheel footpath wheel less than normal is to being easier under identical traction electric machine torque
Generation is dallied, is slided, and more aggravation wheel causes situation more to deteriorate abrasion.To wheel in the general technical specifications of general locomotive
The limit of footpath deviation is wheel wheel footpath difference to be coaxially not more than 2mm, being not more than 12mm with bogie, be not more than 32mm with car.When
When having wheel to more than the limit value, it has to overall Xuan wheel, the greatly consumption of aggravation car load wheel pair, shorten take turns to make
With the life-span, huge economic loss is caused.
The content of the invention
The technical problem to be solved be to provide it is a kind of to wheel to the method that is modified of uneven wear,
By the method can to wheel to uneven wear be modified so as to extend take turns to service life.
The technical solution of the present invention be to provide it is a kind of to wheel to the method that is modified of uneven wear, including
Following steps：
Input is effectively taken turns to wheel footpath value；
When traction/brake handle is placed in a certain position in towing area, controller level signal is gathered, and the signal is transmitted
To locomotive control, the tractive effort at wheel rim correction factor λ of locomotive control the n-th axle wheel pair of calculatingn, and according to update the system
The wheel of revised n-th axle wheel pair is calculated to tractive effort at wheel rim fwheel_nThe torque that should be exported with the n-th axle traction electric machine；
When traction/brake handle is placed in the braking a certain position in area, controller level signal is gathered, and the signal is transmitted
To locomotive control, the wheel week brake force correction factor λ of locomotive control the n-th axle wheel pair of calculatingn, and according to update the system
The wheel of revised n-th axle wheel pair is calculated to all brake force f of wheelwheel_nThe torque that should be exported with the n-th axle braking motor.
Compared with prior art, the present invention has advantages below：As the wheel according to input can calculate wheel week to wheel footpath value
Pull strength/brake force correction factor.Rotating speed is obtained according to the controller level signal of collection, further can be obtained according to correction factor
To the size of tractive effort at wheel rim/brake force, so as to calculate the torque that revised n-th axle traction electric machine should be exported.Can root
According to wheel to actual wear situation come correct the n-th axle traction electric machine output torque, so as to correspondingly adjust the n-th axle wheel pair
Pull strength/brake force, reduce wheel footpath it is less wheel to abrasion.So that all wheels of the electric locomotive to wear condition it is more flat
, reduce the probability of entirety Xuan wheel, extend take turns to service life.
In one embodiment, when traction/brake handle is placed in zero position, locomotive control controls the traction of locomotive
Power/brake force is by respective original characteristic curve continuous decrease；If handle keeps the position constant, pull strength/brake force
Drop to zero.
In a preferred embodiment, the bigger wheel of wheel footpath is bigger to exporting tractive effort at wheel rim/brake force, and wheel footpath is less
Wheel to export tractive effort at wheel rim pull strength/brake force it is less.Can play the larger bull wheel of balance wheel footpath to and wheel footpath it is less
The effect of the abrasion of steamboat pair, reduces the abrasion to steamboat pair, reduces probability and the loss of entirety Xuan wheels.
In a preferred embodiment, corrected Calculation unit, the corrected Calculation unit are provided with locomotive control
Can according to input wheel wheel footpath value is calculated correction factor it is corresponding with control take turns to motor output torque.According to amendment system
Number calculates that output torques are more accurate so as to control actual pull strength/brake force, can effectively stabilizer pair abrasion, reduce whole
The probability of body Xuan wheels.
In one embodiment, the n-th axle wheel is to wheel shaft pull strength/brake force correction factorWherein,
Dn is the n-th axle wheel to wheel footpath,For the average wheel footpath of car load, k is regulation coefficient.Can also be determined according to other methods and be repaiied
Change coefficient, in the embodiments herein, the value of regulation coefficient k according to situations such as actual vehicle model and operation environment is selected and adjusted
It is whole, can output modification system to greatest extent effect.
In one embodiment, the n-th axle wheel to wheel shaft pull strength/brake force is Wherein, pull strength/brake force of the Floco for car load.According to the n-th axle
Take turns to actual wear situation, the n-th axle wheel is adjusted by correction factor to wheel shaft pull strength/brake force.
In a preferred embodiment, the torque that the n-th axle traction electric machine should be exported：
Such as can also pass through to adjust on the basis of standard torque according to wheel footpath is ascending according to the ratio of correction factor
This kind of mode such as whole -10%, -5%, 0%, 5% is realizing the adjustment of torque.Certainly, the coefficient of adjustment is not limited to 5%, also may be used
Think 1%, 0.5%, 3% etc., the ratio of adjustment correction factor and correction factor is selected according to practical situation.But according to above-mentioned
The result that formula is calculated easily reaches more precise control closer to wheel to practical situation.
In a preferred embodiment, when generation Overlay the output torque of certain motor occurs more than the motor
During the characteristic curve scope of pull strength/brake force, the output torque of the motor presses the characteristic maximum of pull strength/brake force
Value output.According to the torque output that should be exported when output torque is in the range of the characteristic curve of the pull strength/brake force of the motor.
When output torque exceeds characteristic curve scope, according to the characteristic maximum for pressing pull strength/brake force（Envelope correspondence
Value）Output.
Description of the drawings
Fig. 1 be it is of the invention to wheel to a kind of flow process of embodiment of method that is modified of uneven wear show
It is intended to.
Fig. 2 be it is of the invention to wheel to the flow process of another kind of embodiment of method that is modified of uneven wear
Schematic diagram.
Fig. 3 is the characteristic curve of the corresponding pull strength of embodiment in Fig. 1 or Fig. 2.
Fig. 4 is the characteristic curve of the corresponding brake force of embodiment in Fig. 1 or Fig. 2.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 show it is of the invention to wheel to one kind of method for being modified of uneven wear be embodied as
Example.In this embodiment, the method is comprised the following steps：
1）When state is started, locomotive control（CCU）First judge traction/brake handle whether more than zero-bit.If no
It is greater than zero-bit, the current pull strength/of unloading vehicle or brake force；If being greater than zero-bit, into next step.
2）Judge whether effective wheel footpath input.If effective wheel footpath input, into locomotive control（CCU）Repair
The next step of holotype judges.If no effective wheel footpath input, locomotive control（CCU）Indicate, using acquiescence wheel footpath value, to move back
Go out revision pattern.
3）Electrical compensation operating mode is shifted in judging whether axle.If having, locomotive control（CCU）Amendment is exited in instruction
Pattern.If no, locomotive control（CCU）Instruction enters next step.
4）Locomotive control（CCU）Judge that the position of traction/brake handle is by the controller level signal for gathering
In traction state or on-position.If being in traction state, into step 5）；If being in on-position, into step 7）.
5）When in traction state when, first, according to traction/brake handle towing area position calculation car load pull strength
Floco；
Secondly, according to formulaCalculate the average pull strength of single shaftN is wheel logarithm；
Again, according to formulaWithCalculate n-th（n=1、
2…）To tractive effort at wheel rim correction factor, k is regulation coefficient to the wheel of axle, and Dn is the n-th axle wheel to wheel footpath；
Then, according to formulaMeter
Calculate the tractive effort at wheel rim of revised n-th axle；
Finally, according to formula
Calculate n-th
Spindle motor torque.Step 6 is entered after calculating the n-th spindle motor torque）.
6）Judge the n-th spindle motor torque whether beyond the pull strength characteristic curve shown in Fig. 3.If the n-th spindle motor torque surpasses
Go out the pull strength characteristic curve shown in Fig. 3, then by the maximum in pull strength characteristic curve（Envelope respective value）Output；If the
The torque of n spindle motors without departing from the pull strength characteristic curve shown in Fig. 3, then according to step 5）The motor torque output for calculating, so
Step 9 is entered afterwards）.
7）When in on-position, first, according to traction/brake handle in the position calculation car load brake force for braking area
Floco；
Secondly, according to formulaCalculate single shaft Brake Mean PowerN is wheel logarithm；
Again, according to formulaWithCalculate n-th（n=1、
2…）To all brake force correction factors of wheel, k is regulation coefficient to the wheel of axle, and Dn is the n-th axle wheel to wheel footpath；
Then, according to formula
Calculate revised
The wheel week brake force of the n-th axle；
Finally, according to formula
Calculate
N spindle motor torques.Step 8 is entered after calculating the n-th spindle motor torque）.
8）Judge the n-th spindle motor torque whether beyond the brake force characteristic curve shown in Fig. 4.If the n-th spindle motor torque surpasses
Go out the brake force characteristic curve shown in Fig. 3, then by the maximum in brake force characteristic curve（Envelope respective value）Output；If the
The torque of n spindle motors without departing from the brake force characteristic curve shown in Fig. 3, then according to step 5）The motor torque output for calculating, so
Step 9 is entered afterwards）.
9）Judge whether to secondary motor torque transfer/distribution.If not carrying out secondary motor torque transfer/distribution,
Into the beginning state of next circulation；If carrying out secondary motor torque transfer/distribution, calculate laggard secondary distribution is completed
Enter the beginning state of next circulation.
Fig. 2 show it is of the invention to wheel to the another kind of method that is modified of uneven wear be embodied as
Example.In this embodiment, the method is comprised the following steps：
1）First judge traction/brake handle whether more than zero-bit when starting.If not being more than zero-bit, unloading vehicle is current
Pull strength/or brake force；If being greater than zero-bit, into next step.
2）Judge whether effective wheel footpath input.If effective wheel footpath input, the next step into modification model judge.
If no effective wheel footpath input, using acquiescence wheel footpath value, exits revision pattern.
3）Electrical compensation operating mode is shifted in judging whether axle.If having, modification model is exited.If no, into next
Step.
4）The position of judgement traction/brake handle is in traction state or on-position.If being in traction state, enter
Enter step 5）；If being in on-position, into step 7）.
5）When in traction state when, first, according to traction/brake handle towing area position calculation car load pull strength
Floco；
Secondly, according to formulaCalculate the average pull strength of single shaftN is wheel logarithm；
Again, according to formulaWithCalculate n-th（n=1、
2…）To tractive effort at wheel rim correction factor, k is regulation coefficient to the wheel of axle, and Dn is the n-th axle wheel to wheel footpath；
Then, according to formula
Calculate revised
The tractive effort at wheel rim of the n-th axle；
Finally, according to formulaMeter
Calculate the n-th spindle motor torque.Step 6 is entered after calculating the n-th spindle motor torque）.
6）Judge the n-th spindle motor torque whether beyond the pull strength characteristic curve shown in Fig. 3.If the n-th spindle motor torque surpasses
Go out the pull strength characteristic curve shown in Fig. 3, then by the maximum in pull strength characteristic curve（Envelope respective value）Output；If the
The torque of n spindle motors without departing from the pull strength characteristic curve shown in Fig. 3, then according to step 5）The motor torque output for calculating, so
Next circulation is entered afterwards.
7）When in on-position, first, according to traction/brake handle in the position calculation car load brake force for braking area
Floco；
Secondly, according to formulaCalculate single shaft Brake Mean PowerN is wheel logarithm；
Again, according to formulaWithCalculate n-th（n=1、
2…）To all brake force correction factors of wheel, k is regulation coefficient to the wheel of axle, and Dn is the n-th axle wheel to wheel footpath；
Then, according to formula
Calculate amendment
The wheel week brake force of the n-th axle afterwards；
Finally, according to formula
Calculate
N-th spindle motor torque.Step 8 is entered after calculating the n-th spindle motor torque）.
8）Judge the n-th spindle motor torque whether beyond the brake force characteristic curve shown in Fig. 4.If the n-th spindle motor torque surpasses
Go out the brake force characteristic curve shown in Fig. 3, then by the maximum in brake force characteristic curve（Envelope respective value）Output；If the
The torque of n spindle motors without departing from the brake force characteristic curve shown in Fig. 3, then according to step 5）The motor torque output for calculating, so
Next circulation is entered afterwards.
Herein, be input into effectively wheel can be the wherein a certain wheel of manual measurement to wheel footpath value to wheel footpath value, then
Other wheels are calculated to wheel footpath value according to wear condition in actual motion.Can also all manually or automatically measure
All of wheel to the electric locomotive is to wheel footpath value.
Fig. 3 show the method according to the invention be modified after the characteristic schematic diagram of pull strength.In the figure,
What abscissa was represented is that traction/brake handle is in velocity amplitude of the towing area from 0 to maximum Vmax, and what vertical coordinate was represented is to lead
Gravitation value.What outermost heavy black line was represented be from speed be 0 to maximum Vmax when corresponding maximum drawbar pull, also referred to as
The characteristic envelope of pull strength.For the traction electric machine of concrete model, its pull strength characteristic curve is known.And from
The tendency of pull strength envelope can be seen that on duty when starting to start, and pull strength is maximum, and velocity amplitude rises to the first knee value
When, pull strength linearly declines state, and in this stage, power is increasing always.When velocity amplitude increases to Second Inflexion Point value,
Electric locomotive enters full power state, and power constant, as velocity amplitude is constantly rising, is limited by constant power level,
Pull strength rapid decrease.When power reaches maximum Vmax, it is no longer necessary to pull strength, pull strength fast discharging to zero.
And in fig. 3 it is shown that three parallel straight lines in envelope, represent respectively from top to bottom be amendment after
Big wheel footpath wheel pair traction force fwheel_1, wheel to average pull strengthWith the pull strength of revised small-wheel-diameter wheel pair
fwheel_2.It can be seen that after amendment big wheel footpath wheel pair traction force fwheel_1More than wheel to average pull strength
The traction force f of revised small-wheel-diameter wheel pairwheel_2Less than wheel to average pull strengthTherefore, in the present invention, wheel footpath
Bigger wheel is bigger to the tractive effort at wheel rim for exporting, and the less wheel of wheel footpath is less to the tractive effort at wheel rim for exporting.So as to reduce
The abrasion of small-wheel-diameter wheel pair.
Fig. 4 show the method according to the invention be modified after the characteristic schematic diagram of brake force.In the figure,
Abscissa represents traction/brake handle in braking velocity amplitude of the area from 0 to maximum Vmax, and what vertical coordinate was represented is correspondence speed
The lower braking force value that can be produced of degree.What outermost heavy black line was represented be from speed be 0 to maximum Vmax when to should be able to
The characteristic envelope of the maximum braking force of generation, also referred to as brake force.For the braking motor of concrete model, its brake force
Characteristic curve is known.And can be seen that when firm commencing speed is zero from the brake force characteristic curve, stopping power is
Zero.Speed is starting the increase stage（Such as 2km/h~5km/h）Brake force linearly rises, and at First Speed flex point（Example
As at 5km/h）Brake force reaches maximum.Speed continues to increase, braking force value keep at the maximum one section it is interval, and the
At two speed flex points（Such as 65km/h）, into the full power deboost phase.As speed further increases, limited by braking power
System, brake force further decline.Reach at Vmax to the 3rd flex point speed, brake force rapidly drops to zero.If speed is still
So rise, air damping will be triggered.
And in fig. 4 it is shown that three parallel straight lines in envelope.Represent respectively from top to bottom be amendment after
Big wheel footpath wheel pair brake force fwheel_1, wheel to Brake Mean PowerWith the brake force of revised small-wheel-diameter wheel pair
fwheel_2.It can be seen that after amendment big wheel footpath wheel pair brake force fwheel_1More than wheel to Brake Mean Power
The brake force of revised small-wheel-diameter wheel pairfwheel_2Less than wheel to Brake Mean PowerTherefore, in the present invention, wheel footpath
Bigger wheel is bigger to the wheel week brake force for exporting, and the less wheel of wheel footpath is less to the wheel week brake force for exporting.So as to reduce
The abrasion of small-wheel-diameter wheel pair.
Although already in connection with specific embodiment, invention has been described, it being understood, however, that without departing from the present invention
Scope in the case of, various improvement or replacement can be carried out to which.Especially, as long as there is no the conflict in structure, each reality
Apply the feature in example can be combined with each other, the combination type feature for being formed is still fallen within the scope of the present invention.The present invention is simultaneously
Specific embodiment disclosed herein is not limited to, but including all technical schemes for falling within the scope of the appended claims.
Claims (8)
1. it is a kind of to wheel to the method that is modified of uneven wear, comprise the following steps：
Input is effectively taken turns to wheel footpath value；
When traction/brake handle is placed in a certain position in towing area, controller level signal is gathered, and transfers the signal to the machine
Vehicle control, locomotive control calculate the tractive effort at wheel rim correction factor λ of the n-th axle wheel pairn, and calculated according to update the system
Go out the wheel of revised n-th axle wheel pair to tractive effort at wheel rim fwheel_nThe torque that should be exported with the n-th axle traction electric machine；
When traction/brake handle is placed in the braking a certain position in area, controller level signal is gathered, and transfers the signal to the machine
Vehicle control, locomotive control calculate the wheel week brake force correction factor λ of the n-th axle wheel pairn, and calculated according to update the system
Go out the wheel of revised n-th axle wheel pair to all brake force f of wheelwheel_nThe torque that should be exported with the n-th axle braking motor.
2. method according to claim 1, it is characterised in that when traction/brake handle is placed in zero position, locomotive control
Pull strength/the brake force of system control machine car is by respective original characteristic curve continuous decrease；If handle keeps the position not
Become, then pull strength/brake force drops to zero.
3. method according to claim 1, it is characterised in that tractive effort at wheel rim/braking of the bigger wheel of wheel footpath to exporting
Power is bigger, and the less wheel of wheel footpath is less to the tractive effort at wheel rim pull strength/brake force for exporting.
4. method according to claim 1, it is characterised in that corrected Calculation unit is provided with locomotive control, it is described
Corrected Calculation unit can according to the wheel of input wheel footpath value is calculated correction factor it is corresponding with control take turns to motor output turn
Square.
5. method according to claim 1, it is characterised in that the n-th axle wheel is to wheel shaft pull strength/brake force correction factorWherein, Dn is the n-th axle wheel to wheel footpath,For the average wheel footpath of car load, k is regulation coefficient.
6. method according to claim 5, it is characterised in that the n-th axle wheel to wheel shaft pull strength/brake force isWherein, FlocoFor the pull strength/brake force of car load.
7. method according to claim 6, it is characterised in that the torque that the n-th axle traction electric machine should be exported：
8. the method according to any one of claim 1~7, it is characterised in that when produce Overlay occur certain it is electric
When the output torque of machine is more than the characteristic curve scope of the pull strength/brake force of the motor, the output torque of the motor is by traction
The characteristic maximum output of power/brake force.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081728.1A CN104890530B (en) | 2014-03-07 | 2014-03-07 | Method for correcting uneven wear of wheel sets |
| PCT/CN2015/073752 WO2015131845A1 (en) | 2014-03-07 | 2015-03-06 | Method for correcting uneven wear of wheelset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081728.1A CN104890530B (en) | 2014-03-07 | 2014-03-07 | Method for correcting uneven wear of wheel sets |
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| CN104890530A CN104890530A (en) | 2015-09-09 |
| CN104890530B true CN104890530B (en) | 2017-05-17 |
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| CN201410081728.1A Active CN104890530B (en) | 2014-03-07 | 2014-03-07 | Method for correcting uneven wear of wheel sets |
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| WO (1) | WO2015131845A1 (en) |
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| CN109703600B (en) * | 2017-10-25 | 2021-05-25 | 株洲中车时代电气股份有限公司 | Method and system for calculating train wheel diameter deviation and train |
| CN110979390B (en) * | 2019-12-05 | 2021-10-26 | 中车株洲电力机车有限公司 | Method and system for repairing polygonal wheel of rail transit vehicle |
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| JP4058932B2 (en) * | 2001-10-25 | 2008-03-12 | トヨタ自動車株式会社 | Brake control device for vehicle |
| AU2009305103B2 (en) * | 2008-10-17 | 2014-08-07 | Frank Wegner Donnelly | Rail conveyance system for mining |
| CN101537841B (en) * | 2009-04-22 | 2011-07-27 | 北京人和路通科技有限公司 | Control method of a heavy load combined train marshaled mixedly by locomotives and system thereof |
| CN101941446B (en) * | 2009-07-09 | 2012-08-01 | 北京锦鸿希电信息技术股份有限公司 | Controllable train tail system |
| DE202009015916U1 (en) * | 2009-11-23 | 2010-03-11 | Noell Mobile Systems Gmbh | Sensor system for conveyor systems with linear synchronous motor drive and conveyor system |
| CN103057549B (en) * | 2012-12-13 | 2015-02-04 | 中国北车集团大连机车车辆有限公司 | Automatic correction method of railway locomotive tractive characteristic curve |
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| WO2015131845A1 (en) | 2015-09-11 |
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