CN102152801A - Intelligent control system and method of rim lubricating device - Google Patents
Intelligent control system and method of rim lubricating device Download PDFInfo
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- CN102152801A CN102152801A CN 201110065403 CN201110065403A CN102152801A CN 102152801 A CN102152801 A CN 102152801A CN 201110065403 CN201110065403 CN 201110065403 CN 201110065403 A CN201110065403 A CN 201110065403A CN 102152801 A CN102152801 A CN 102152801A
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Abstract
The invention provides an intelligent control system and method of a rim lubricating device. The method comprises the following steps of: (1) detecting frequency and amplitude of axial acceleration of a motor vehicle, and respectively comparing the frequency and the amplitude with a preset axial frequency threshold and an axial amplitude threshold; (2) determining the running condition of the motor vehicle and determining the work threshold of corresponding axial impact or rim friction work according to the comparison result in the step (1); (3) detecting the axial impact or rim friction work of the motor vehicle in a unit time, overlapping the work to obtain a value, comparing the value with the work threshold determined in the step (2); and (4) determining to supply a lubricant if the obtained value in the step (3) is more than or equal to the work threshold, or else, not supplying the lubricant. The intelligent control system can acquire real-time data through a built-in sensor and can automatically judge the running state of the present motor vehicle according to the wave form and spectrum analysis of the running data, thereby using the running state as the evidence of supplying the lubricant.
Description
Technical field
The invention belongs to the locomotive field, relate in particular to a kind of wheel rim of locomotive lubricating system control system and control method.
Background technology
Locomotive is in operation, and owing to crossing reasons such as bend or snakelike swing, violent skimming wear can take place for wheel rim and rail gauge angle.Suitable lubricated wheel rim and gauge angle not only can prolong the service life of wheel and rail, and can reduce the derailing coefficient, and have certain energy-saving effect.The principle of work of the fluid rim lubricating device of widespread use at present be with quantitative lubricant (grease or lubricating oil) with proper spacing (distance or time) be ejected on the wheel rim of locomotive after high pressure gas mix, thereby reach lubricated purpose.
Locomotive is in traveling process, and the wearing and tearing meeting between wheel rim and the rail constantly consumes lubricant, therefore needs in time to supply with.The supply of lubricant must be an amount of, and undersupply then is difficult to reach lubricant effect; Supply with the excessive lubricant that then can make and pile up and expansion, can pollute rail tread when serious, cause wheel slipping to slide at surface of friction pair.Therefore, supply with the key that proper amount of lubricating agent is a wheel flange lubricating in time, accurately.
The simplest a kind of fluid wheel flange lubricating master mode is spacing spray fat or regularly sprays the fat pattern, that is, supposes that lubricant is with even velocity consumption.But consider that the wearing and tearing of wheel rim of locomotive on bend are higher than straight way far away, so developed the fluid wheel flange lubricating control system of identification bend in recent years gradually, as obtaining current locomotive operation position by locomotive monitoring system information sharing platform (TAX2 case), with this position and the track data contrast that prestores, thereby judge whether to enter bend, or realize bend identification by GPS.When locomotive operation was on straight way, with the long fat that sprays at interval, locomotive operation was on bend the time, then with the short fat that sprays at interval.Owing to supposed the lubricant depletion rate of straight way and bend, in fact do not judge the current operating mode whether wheel wear takes place of locomotive, therefore, this master mode is called the master mode of " identification circuit ".But because the influence of factors such as locomotive vehicle, traction task, weather and randol noise must cause part section lubricant starvation or excessive.Therefore the supply opportunity and the speed of lubricant can't be set up contact with the real-time working condition of locomotive operation.
In addition, the centnifugal force when abroad some device is with the mistake bend also is a kind of method of " identification circuit " as basis for estimation.When centnifugal force keeps higher value, think to enter bend, adopt the short fat that sprays at interval; Otherwise, think to enter straight way, adopt the long fat that sprays at interval.But this method only enters bend to owe (mistake) when superelevation is crossed bend, just to think when locomotive.
Hence one can see that, and the foundation of the control system of " identification circuit " is empirical data, is the method for a kind of " correct substantially ", and this method has following shortcoming:
1) different locomotive, even same locomotive is because factors such as running velocity, load-carrying external interference through same bend the time, have different wheel wear characteristics.For example, the centnifugal force when crossing bend for balance, bend section outer rail are laid than interior rail height, are called superelevation of outer rail.Carry out passenger-cargo mixed race on the most of circuit of China, passenger vehicle speed is fast, and lorry speed is slow, therefore superelevation of outer rail setting need be taken all factors into consideration the speed of passenger vehicle and lorry, occurs passenger vehicle easily and owe superelevation when turning radius is big, and lorry is crossed the situation of superelevation, cause the wearing and tearing of passenger vehicle outer rail, rail wearing and tearing in the lorry.Passenger vehicle also may occur and not wear and tear, situations such as the interior rail wearing and tearing of lorry.Therefore, simple " identification circuit " can not be distinguished concrete wheel rim of locomotive worn-down existing condition, has certain limitation.
2) controlled variable of " identification circuit " needs the user to participate in setting, need the user to have long-term comprehensive experience on the one hand, need on the other hand to carry out feedback modifiers according to the wheel rim of locomotive wear data, the wheel wear data statistics cycle needs the long cycle in the several months from statistics, the enforcement parameter modification of drawing up a plan for.Therefore spray the conformability that can't guarantee other operation conditions behind the fat parameter modification, be unfavorable in time, deal with problems accurately.
3) the wheel rim of locomotive wearing and tearing have randomness, according to the time or apart from the master mode of spraying fat at interval, even the spacing parameter accurate and effective that adopts also must cause part section lubricant excessive and not enough.
Therefore, the control system of " identification circuit " can only maintain on the level of " correct substantially ", and can not carry out wheel flange lubricating accurately according to the actual operating mode of locomotive, and shortened the service life of wheel rim.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, propose a kind of rim lubricating device intelligence control system and control method thereof.
The objective of the invention is to be achieved through the following technical solutions:
According to an aspect of the present invention, provide a kind of rim lubricating device intelligence control method, this method may further comprise the steps:
Step 1): the machines axletree is to the frequency and the amplitude of acceleration/accel, and with this frequency and amplitude respectively with predetermined axial frequency threshold value and axial amplitude threshold ratio;
Step 2):, determine the merit threshold value of the residing operating condition of locomotive and definite corresponding axial impact or wheel rim work due to friction according to the comparative result of step 1);
Step 3): in unit time machines axletree obtains a value to impacting or wheel rim work due to friction and superposeing, relatively should value and step 2) determined merit threshold value;
Step 4): if the resulting value of step 3) more than or equal to described merit threshold value, is then determined oil spout, otherwise not oil spout.
In said method, before described step 1), carry out following steps: the axial acceleration and the vertical acceleration that detect locomotive, and compare axial acceleration and axial acceleration threshold value, and compare vertical acceleration and vertical acceleration threshold value, be used to judge that locomotive is in parking or operating condition.
In said method, described step 2) operating condition comprises straight line operating mode, straight line snake pendulum operating mode and bend operating mode.
In said method, determine described step 2 in the following manner) operating condition:
When the comparative result of step 1) is f
1＜f
Th1And A
1＜A
Th1The time, determine that locomotive is in the straight line operating mode;
When the comparative result of step 1) is f
1＜f
Th1And A
1〉=A
Th1The time, determine that locomotive is in straight line snake pendulum operating mode;
When the comparative result of step 1) is f
1〉=f
Th1And A
1〉=A
Th1The time, determine that locomotive is in the bend operating mode;
F wherein
1And A
1Frequency and the amplitude of representing axial acceleration respectively, f
Th1And A
Th1Frequency threshold and the amplitude threshold of representing axial acceleration respectively.
In said method, when described step 2) when determining that the locomotive operation operating mode is the bend operating mode, whether the direction that detects axial acceleration has deflection, is used for determining that this bend operating mode is that outer curve is crossed (owing) superelevation operating mode or inner curve operating mode.
According to another aspect of the present invention, a kind of rim lubricating device intelligence control system is provided, comprise input, output module, sensor assembly and computer module, wherein said computer module is used to receive from the frequency of the axial acceleration of sensor assembly and amplitude signal to be handled and judges, and generation fuel injector control signal, then fuel injector control signal is sent to output module, described computer module (program module) comprising:
Comparison module (program module), it is provided with axial frequency threshold value and axial amplitude threshold value, be used for the frequency of received axial acceleration and amplitude respectively with predetermined axial frequency threshold value and axial amplitude threshold ratio;
Judge module (program module) is used for the comparative result according to described detection module, determines the residing operating condition of locomotive, and determines the merit threshold value of corresponding axial impact or wheel rim work due to friction;
Computing module is used in unit time machines axletree to impacting or wheel rim work due to friction and superposeing, and obtains a value, relatively should value and described merit threshold value; And
Control module is used for according to producing the control signal of whether oil spout with the comparative result of merit threshold value.
In said system, described sensor assembly also is used to detect the axial acceleration and the vertical acceleration of locomotive, and described comparison module also is provided with axial acceleration threshold value and vertical acceleration threshold value;
Described comparison module is axial acceleration and axial acceleration threshold value at first relatively, and compares vertical acceleration and vertical acceleration threshold value, is used to judge that locomotive is in parking or operating condition; The frequency of the axial acceleration in the time of will being in operating condition then and amplitude respectively with axial frequency threshold value and axial amplitude threshold ratio.
In said system, described operating condition comprises straight line operating mode, straight line snake pendulum operating mode and bend operating mode.
In said system, described comparison module is determined operating condition in the following manner:
When comparative result is f
1＜f
Th1And A
1＜A
Th1The time, determine that locomotive is in the straight line operating mode;
When comparative result is f
1＜f
Th1And A
1〉=A
Th1The time, determine that locomotive is in straight line snake pendulum operating mode;
When comparative result is f
1〉=f
Th1And A
1〉=A
Th1The time, determine that locomotive is in the bend operating mode;
F wherein
1And A
1Frequency and the amplitude of representing axial acceleration respectively, f
Th1And A
Th1Frequency threshold and the amplitude threshold of representing axial acceleration respectively.
In said system, when comparison module determines that the locomotive operation operating mode is the bend operating mode, also comprise the execution following steps: detect the direction of axial acceleration, be used for determining that this bend operating mode is that outer curve is crossed (owing) superelevation operating mode or inner curve operating mode.
Therefore, can judge accurately that according to control system of the present invention the actual condition, automatic compensation lubricant of locomotive supply with parameter, judge that optimal lubricant is supplied with the position of wheel, lubricant is supplied with opportunity and lubricant feed speed automatically.
Description of drawings
It is following that embodiments of the present invention is further illustrated with reference to accompanying drawing, wherein:
Fig. 1 is the rim lubricating device intelligence control system of a preferred embodiment of the invention;
Fig. 2 is the workflow diagram of the rim lubricating device intelligence control system of a preferred embodiment of the invention.
The specific embodiment
At first, introduce the principle of work of rim lubricating device intelligence control system of the present invention.
Having pressure to produce between the contact of wheel rim and rail and the two, is wheel rim of locomotive worn-down necessary condition.In locomotive operation, when wearing and tearing took place for rail and wheel rim, pressure therebetween showed as locomotive axle to (along the direction of the line of two relative wheel centers) impact shock.This impact shock can detect by acceleration pick-up.In the time of impact shock, because violent skimming wear, the waveform of axial acceleration and frequency characteristics also change thereupon.Therefore by detecting the waveform and the frequency characteristics of axial acceleration, can judge whether wheel rim of locomotive is in wear state, and the serious wear degree, and change the feed speed and the delivery volume of lubricant according to wear state and serious wear degree.
In the operational process of locomotive, the waveform of the different pairing axial accelerations of operating mode is different with frequency, the waveform of the pairing vertical acceleration of different operating modes (vertical acceleration is mainly used in the auxiliary judgment locomotive and whether is in dead ship condition) is also different with frequency, therefore the present invention is based on above-mentioned principle, by detecting axial acceleration (a
1) and vertical acceleration (a
2) amplitude and frequency, can identify the current operating mode of locomotive, and provide corresponding lubricant supply model according to this operating mode.
The operating condition of locomotive and corresponding lubricant supply model thereof comprise following six kinds:
1. parking operating mode: the vertical and axial acceleration of locomotive is all less than lowest threshold a
Th1, a
Th2, this moment, system did not allow supply of lubricant;
2. operating condition: the vertical and axial acceleration of locomotive exceeds lowest threshold a
Th1, a
Th2, allow supply of lubricant this moment;
3. straight line operating mode: the vertical and axial acceleration of locomotive exceeds lowest threshold a
Th1, a
Th2, the frequency of axial acceleration is lower than threshold value f
Th1, the amplitude of axial acceleration is less than threshold value A
Th1, be in the straight line operating mode this moment, when axial impact or wheel rim work due to friction are accumulated to threshold value S
1The time, the shower nozzle spray lubricant of the preceding inlet side of system is once;
4. the straight line snake is put operating mode: locomotive is vertical to exceed lowest threshold a with axial acceleration
Th1, a
Th2, and the frequency of axial acceleration is lower than threshold value f
Th1, amplitude is greater than threshold value A
Th1, be in straight line snake pendulum operating mode this moment, when axial impact or wheel rim work due to friction are accumulated to threshold value S
2The time, the shower nozzle spray lubricant of the preceding inlet side of system is once;
5. outer curve is crossed (owing) superelevation operating mode: locomotive is vertical to exceed lowest threshold a with axial acceleration
Th1, a
Th2, the axial acceleration direction is significantly amesiality, and frequency is higher than f
Th1, amplitude is greater than A
Th1, this moment locomotive stressed direction wheel wear, when axial impact or wheel rim work due to friction are accumulated to threshold value S
3The time, the shower nozzle spray lubricant of the system preceding inlet side of a stressed side is once; (annotate: outer curve is crossed (owing) superelevation and is referred to: when locomotive operation is on bend, rail and outer rail are horizontal in supposing, when the speed of a motor vehicle is low, by the rail tread friction force of wheel tread is satisfied the centripetal acceleration of locomotive, when locomotive speed improves, the centnifugal force that need overcome is also just big more, when friction force is not enough to overcome centnifugal force, wheel moves to outer rail, wheel rim contact position, rail gauge angle, and this moment is by producing the centnifugal force that pressure exceeds with balance between wheel rim and the gauge angle.This pressure is deletrious, not only causes the sharp wear of rail and wheel, and pressure causes the locomotive derailment accident when excessive easily.Therefore, produce excessive pressure when locomotive is crossed bend between rail and the wheel rim, need to adopt the method for " superelevation of outer rail ".Make outer rail higher than interior rail when promptly laying track, locomotive gravity produces the component that points to the center of circle on the rail level direction like this, and the centnifugal force of locomotive is overcome by the partical gravity that superelevation of outer rail produces fully under the perfect condition.To sum up, superelevation of outer rail and turning radius, locomotive speed are relevant.After steel rail laying was finished, superelevation of outer rail and turning radius also just were fixed up, when locomotive running speed surpasses the speed of mating with superelevation of outer rail, the component of gravity is not enough to overcome centnifugal force, locomotive moves to outer rail, overcomes centnifugal force by the pressure of outer rail and wheel rim, and be called this moment owes superelevation.When locomotive speed was lower than matching speed, the component of gravity was excessive, and the inside rail of locomotive moves, and produced the component of pressure with balancing gravity by the rail of interior rail and wheel rim, was called superelevation this moment.Owing (mistake) superelevation is not matched by locomotive speed and causes.Outer rail is owed (mistake) superelevation and is mostly occurred in the highway section of passenger-cargo mixed race.Because passenger vehicle speed is fast, lorry speed is slow, therefore when laying track, can only comprehensively examine the needs of passenger vehicle and lorry, the therefore same common lorry of bend by the time be in the superelevation state, passenger vehicle by the time be in the superelevation state of owing.In fact, turning radius hour, the speed limit of passenger vehicle and lorry is all very low, this moment, the gaps between their growth rates of the two were little, so this moment rare owing (mistake) superelevation.Therefore owe (mistake) superelevation and mostly occur when turning radius is big, this situation belongs to outer curve and owes (mistake) superelevation.Certainly, also may also can owe (mistake) superelevation phenomenon this moment during locomotive operation) because cause specific does not pass through bend according to the speed of setting.
6. inner curve operating mode: the vertical and axial acceleration of locomotive exceeds lowest threshold a
Th1, a
Th2, axial acceleration does not have remarkable deflection direction, and frequency is higher than f
Th1, amplitude is greater than A
Th1, this moment the wheel rim of locomotive sharp wear, when axial impact or wheel rim work due to friction are accumulated to threshold value S
4The time, the shower nozzle spray lubricant of the system preceding inlet side of a stressed side is once.
Because straight line, straight line snake pendulum, outer curve are crossed the operating mode wheel wear orders of severity such as (owing) superelevation and inner curve and are increased progressively successively, therefore axial impact or corresponding the dwindling of threshold value of wheel rim work due to friction, the i.e. S of cooresponding accumulation
1＞S
2＞S
3＞S
4
In rim lubricating device intelligence control system according to the present invention, the built-in sensors module, with real-time harvester axletree to acceleration/accel and vertical acceleration.Acceleration signal enters computer module through after the Filtering Processing by the A/D interface.Computer module calculates and analyzes according to the waveform and the frequency characteristics of locomotive acceleration/accel, thereby automatically identifies the operating condition of locomotive, and then the lubricant supply model corresponding to this operating mode is provided.Wherein lubricant can be lubricating oil or grease etc.
Need to prove described vertical and axial acceleration threshold value a
Th1, a
Th2, corresponding to the axial impact of various operating conditions or the merit threshold value S of wheel rim work due to friction
1, S
2, S
3And S
4, and the frequency threshold f of axial acceleration
Th1With amplitude threshold A
Th1Be that those of ordinary skills obtain according to the parameters in the locomotive operation in advance, yet should know that these parameter thresholds may be different in different locomotives, different operating condition or hardware environment, the present invention is only in order to show this design concept.
According to a preferred embodiment of the present invention, provide a kind of rim lubricating device intelligence control system, as shown in Figure 1, this system comprises:
1) load module, it links to each other with described computer module, is used for outward sign is sent to computer module, and described outward sign includes but not limited to: locomotive direction, speed, switch, instruction, parameter setting etc.Alternatively, this load module can comprise the isolation (for example can adopt light coupled device effectively to solve high-low pressure and isolate, make the security of system reliability service) of external interface, incoming signal and to the protection of power supply input etc.Alternatively, this load module can also be connected with power module, is used to provide for example 110V direct supply.
2) power module, by measures such as filtering, rectifications, 110V direct supply to input is handled, to prevent that voltage fluctuation, surge impact etc. from causing adverse effect to control system, treated 110V direct supply one tunnel is as the drive source of actuating system, and another road is converted to the 5V direct supply that control system needs.
3) sensor assembly, it links to each other with computer module, the frequency and the amplitude that are used for the sense acceleration waveform, and these signals that detected are sent to computer module, particularly, this sensor assembly comprises acceleration pick-up and its peripheral circuit, and preferably, this module can degree of will speed up sensor institute sensed signal be input to computer module after by low-pass filtering treatment.
4) computer module, it links to each other with described output module, carries out calculation process and logic determines based on the outward sign of load module and the analog signal of sensor assembly, and control signal sends to output module the most at last.Particularly, this computer module comprises comparison module, judge module, computing module and control module, it is provided with axial frequency threshold value and axial amplitude threshold value described comparison module, be used for the frequency of received axial acceleration and amplitude respectively with axial frequency threshold value and axial amplitude threshold ratio, described comparison module is used for according to above-mentioned comparative result, determine the merit threshold value of the residing operating condition of locomotive and definite corresponding axial impact or wheel rim work due to friction, computing module is used in unit time machines axletree to impacting or wheel rim work due to friction and superposeing, obtain a value, relatively should be worth and the merit threshold value; Control module is used for determining whether oil spout according to the comparative result with the merit threshold value.In an example, this computer module for example is the C51 Series chip.
5) output module, its control signal with received computer module are converted to power output to drive actuating system.Alternatively, this output module can also comprise following function, 1) mode of operation of control system is outputed to man-machine interface; 2) real time operation state and the historical record data with control system is transferred to upper computer.
The control method of this system may further comprise the steps shown in the diagram of circuit of Fig. 2:
Step 101: at first carry out data acquisition, promptly detect the axial acceleration a of locomotive
1With vertical acceleration a
2, and compare axial acceleration a
1With axial acceleration threshold value a
Th1, vertical acceleration a
2With vertical acceleration threshold value a
Th2
Step 102:, judge that locomotive is in parking or is in operating condition according to the comparative result of step 101.Particularly, if a
1＜a
Th1And a
2＜a
Th2, locomotive is in dead ship condition so, if a
1〉=a
Th1And a
2〉=a
Th2, locomotive is in running state so, if a
1＜a
Th1And a
2〉=a
Th2Perhaps a
1〉=a
Th1And a
2＜a
Th2Think that then locomotive still is in dead ship condition.
Therefore, if judged result is for being in the parking operating mode, then system does not allow supply of lubricant; If judged result is for being in operating condition, the step 103 below continuing so to carry out;
Step 103: the frequency f that detects and analyze axial acceleration
1With amplitude A
1, comparison frequency f then
1With axial frequency threshold value f
Th1, and compare amplitude A
1With the axial amplitude threshold value A
Th1
Step 104:, determine the concrete operating condition of locomotive present located and determine corresponding merit threshold value (described merit refers to axial impact or wheel rim work due to friction) according to the comparative result of step 103.This concrete operating condition comprises straight line operating mode, straight line snake pendulum operating mode and bend operating mode at least.Specifically, judge according to following comparative result:
1) if f
1＜f
Th1And A
1＜A
Th1, judge that locomotive is in the straight line operating mode, determine that needing lubricated position of wheel is preceding inlet side, selecting the threshold value of accumulation axial impact or wheel rim work due to friction is S
1
2) if f
1＜f
Th1And A
1〉=A
Th1, judge that locomotive is in straight line snake pendulum operating mode, determine that needing lubricated position of wheel is preceding inlet side, selecting the threshold value of accumulation axial impact or wheel rim work due to friction is S
2
3) if f
1〉=f
Th1And A
1〉=A
Th1, judge that locomotive is in the bend operating mode, corresponding selected merit threshold value is S
x(x only represents a certain uncertain numerical value herein);
4) if f
1〉=f
Th1And A
1＜A
Th1, then locomotive is in the straight line operating mode (but the change of frequency and amplitude is that contact condition by wheel and rail changes and causes in theory, therefore can ignore f
1＞f
Th1And A
1＜A
Th1Situation, if this phenomenon takes place really, then belong to linear state).
Alternatively, described step 104 can also comprise whether the direction of detection and definite axial acceleration has deflection, further to determine above-mentioned situation 3) the bend operating mode be that outer curve is crossed (owing) superelevation operating mode or inner curve operating mode (situation 1), 2) and 4) locomotive operation on straight way, though locomotive can be because some instantaneous excitation causes wheel to swing, but this swing is uniform on the whole, if the x that for example turned left side-sway, side-sway x substantially then also can turn right, therefore do not need the axial acceleration of these three kinds of situations is judged), come the further selected work function that is suitable for these two kinds of operating modes thus.Particularly, when axial acceleration direction significantly amesiality (being meant that the aviation value of axial acceleration in the unit time has pointed to the left side or the right side of locomotive), can judge that then locomotive is in outer curve at this moment and crosses (owing) superelevation operating mode, therefore determine that needing lubricated position of wheel is the preceding inlet side of a stressed side, selecting the threshold value of accumulation axial impact or wheel rim work due to friction is S
3, when axial acceleration does not have remarkable deflection direction, determine that needing lubricated position of wheel is the preceding inlet side of a stressed side, selecting the threshold value of accumulation axial impact or wheel rim work due to friction is S
4As previously mentioned, owing to straight line, straight line snake pendulum, outer curve are crossed the operating mode wheel wear orders of severity such as (owing) superelevation and inner curve and are increased progressively successively, so axial impact or corresponding the dwindling of threshold value of wheel rim work due to friction, the i.e. S of cooresponding accumulation
1＞S
2＞S
3＞S
4Next proceed to step 105;
Step 105: in unit time detects the summation of axial impact or wheel rim work due to friction and the merit that superposes out, and the described unit time can be set at per 1 minute according to actual needs, per 10 minutes, per 30 minutes, per 1 hour etc.;
Step 106: the determined merit threshold value of merit summation that comparison step 105 calculates and step 104, if summation more than or equal to the merit threshold value, is then determined the oil spout position, the shower nozzle spray lubricant of the preceding inlet side of system is once; If summation less than the merit threshold value, then continues to detect axial impact or wheel rim work due to friction and stack, till greater than this threshold value, otherwise do not carry out oil spout.
As another kind of implementation of the present invention, can save step 101 and 102, promptly do not judge current parking operating mode or the operating condition of being in of locomotive, thereby only detect the waveform (being amplitude) and the frequency of axial acceleration, to judge that the current operating mode of locomotive is in straight line operating mode, straight line snake pendulum operating mode, outer curve and crosses (owing) superelevation operating mode or inner curve operating mode, and provide corresponding lubricant supply model according to the operating mode that this identifies.Concrete determination methods is identical with the above-described process of judgement flow process.
Be understandable that for those skilled in the art, be mainly used in the auxiliary judgment locomotive for the detection of vertical acceleration and whether be in dead ship condition, for the consideration of omitting flow process, also can not carry out the judgement of dead ship condition in actual applications.And the waveform of axial acceleration and the detection of frequency are only the key point of judging the locomotive operation operating mode.
This shows, above-mentioned intelligence control system of the present invention can " be discerned operating mode ", promptly can gather the locomotive real time data by built-in sensors, according to operating data waveform and spectral analysis, the computing machine axletree is to acceleration/accel and work due to friction, and with this automatic running state of judging current locomotive, with the foundation of this running state as the lubricant supply.
Claims (10)
1. rim lubricating device intelligence control method, this method may further comprise the steps:
Step 1): the machines axletree is to the frequency and the amplitude of acceleration/accel, and with this frequency and amplitude respectively with predetermined axial frequency threshold value and axial amplitude threshold ratio;
Step 2):, determine the merit threshold value of the residing operating condition of locomotive and definite corresponding axial impact or wheel rim work due to friction according to the comparative result of step 1);
Step 3): in unit time machines axletree obtains a value to impacting or wheel rim work due to friction and superposeing, relatively should value and step 2) determined merit threshold value;
Step 4): if the resulting value of step 3) more than or equal to described merit threshold value, is then determined oil spout, otherwise not oil spout.
2. method according to claim 1, it is characterized in that, before described step 1), carry out following steps: the axial acceleration and the vertical acceleration that detect locomotive, and comparison axial acceleration and axial acceleration threshold value, and compare vertical acceleration and vertical acceleration threshold value, be used to judge that locomotive is in parking or operating condition.
3. method according to claim 1 and 2 is characterized in that, described step 2) operating condition comprise straight line operating mode, straight line snake pendulum operating mode and bend operating mode.
4. method according to claim 3 is characterized in that, determines described step 2 in the following manner) operating condition:
When the comparative result of step 1) is f
1＜f
Th1And A
1＜A
Th1The time, determine that locomotive is in the straight line operating mode;
When the comparative result of step 1) is f
1＜f
Th1And A
1〉=A
Th1The time, determine that locomotive is in straight line snake pendulum operating mode;
When the comparative result of step 1) is f
1〉=f
Th1And A
1〉=A
Th1The time, determine that locomotive is in the bend operating mode;
F wherein
1And A
1Frequency and the amplitude of representing axial acceleration respectively, f
Th1And A
Th1Frequency threshold and the amplitude threshold of representing axial acceleration respectively.
5. method according to claim 4, it is characterized in that, when described step 2) when determining that the locomotive operation operating mode is the bend operating mode, whether the direction that detects axial acceleration has deflection, is used for determining that this bend operating mode is that outer curve is crossed (owing) superelevation operating mode or inner curve operating mode.
6. rim lubricating device intelligence control system, comprise input, output module, sensor assembly and computer module, wherein said computer module is used to receive from the frequency of the axial acceleration of sensor assembly and amplitude signal to be handled and judges, and generation fuel injector control signal, then fuel injector control signal is sent to output module, described computer module comprises:
Comparison module, it is provided with axial frequency threshold value and axial amplitude threshold value, be used for the frequency of received axial acceleration and amplitude respectively with predetermined axial frequency threshold value and axial amplitude threshold ratio;
Judge module is used for the comparative result according to described detection module, determines the residing operating condition of locomotive, and determines the merit threshold value of corresponding axial impact or wheel rim work due to friction;
Computing module is used in unit time machines axletree to impacting or wheel rim work due to friction and superposeing, and obtains a value, relatively should value and described merit threshold value; And
Control module is used for according to producing the control signal of whether oil spout with the comparative result of merit threshold value.
7. system according to claim 6 is characterized in that, described sensor assembly also is used to detect the axial acceleration and the vertical acceleration of locomotive, and described comparison module also is provided with axial acceleration threshold value and vertical acceleration threshold value;
Described comparison module is axial acceleration and axial acceleration threshold value at first relatively, and compares vertical acceleration and vertical acceleration threshold value, is used to judge that locomotive is in parking or operating condition; The frequency of the axial acceleration in the time of will being in operating condition then and amplitude respectively with axial frequency threshold value and axial amplitude threshold ratio.
8. according to claim 6 or 7 described systems, it is characterized in that described operating condition comprises straight line operating mode, straight line snake pendulum operating mode and bend operating mode.
9. system according to claim 8 is characterized in that, described comparison module is determined operating condition in the following manner:
When comparative result is f
1＜f
Th1And A
1＜A
Th1The time, determine that locomotive is in the straight line operating mode;
When comparative result is f
1＜f
Th1And A
1〉=A
Th1The time, determine that locomotive is in straight line snake pendulum operating mode;
When comparative result is f
1〉=f
Th1And A
1〉=A
Th1The time, determine that locomotive is in the bend operating mode;
F wherein
1And A
1Frequency and the amplitude of representing axial acceleration respectively, f
Th1And A
Th1Frequency threshold and the amplitude threshold of representing axial acceleration respectively.
10. system according to claim 9, it is characterized in that, when comparison module (program module) determines that the locomotive operation operating mode is the bend operating mode, also comprise the execution following steps: detect the direction of axial acceleration, be used for determining that this bend operating mode is that outer curve is crossed (owing) superelevation operating mode or inner curve operating mode.
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| CN106379372A (en) * | 2016-11-25 | 2017-02-08 | 北京中铁科新材料技术有限公司 | Intelligent pneumatic solid rim lubricating system and lubricating method |
| CN109532935A (en) * | 2018-12-10 | 2019-03-29 | 中车长春轨道客车股份有限公司 | A kind of rim lubricating device and method |
| CN109910943A (en) * | 2019-04-03 | 2019-06-21 | 北京承乾润华机电设备有限公司 | A kind of wheeling edge wearing safety control system and method |
| CN109927758A (en) * | 2019-04-09 | 2019-06-25 | 中车唐山机车车辆有限公司 | Solid rim lubricating device and lubricating method |
| CN111148680A (en) * | 2017-10-03 | 2020-05-12 | 西门子交通奥地利有限责任公司 | Rim lubrication system |
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| CN110371160B (en) * | 2019-08-06 | 2020-11-10 | 中车大连机车车辆有限公司 | Control method and device for reducing friction and noise of locomotive wheel |
| CN111208745A (en) * | 2020-03-16 | 2020-05-29 | 吉林省运捷轨道科技开发有限公司 | Control method for automatically calculating oil injection quantity of rail lubrication system |
| CN111208745B (en) * | 2020-03-16 | 2023-04-07 | 吉林省运捷轨道科技开发有限公司 | Control method for automatically calculating oil injection quantity of rail lubrication system |
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| CN113085944A (en) * | 2021-04-29 | 2021-07-09 | 中国铁道科学研究院集团有限公司 | Wheel rim lubrication control method, control system and controller |
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