CN116424373B - Rail vehicle sanding control method and device and computer storage medium - Google Patents
Rail vehicle sanding control method and device and computer storage medium Download PDFInfo
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- CN116424373B CN116424373B CN202310122834.9A CN202310122834A CN116424373B CN 116424373 B CN116424373 B CN 116424373B CN 202310122834 A CN202310122834 A CN 202310122834A CN 116424373 B CN116424373 B CN 116424373B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000004576 sand Substances 0.000 claims abstract description 169
- 238000005507 spraying Methods 0.000 claims abstract description 86
- 230000007480 spreading Effects 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 102220198146 rs1057519886 Human genes 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 102220621241 Proline-rich membrane anchor 1_S32A_mutation Human genes 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 102220213553 rs1026192345 Human genes 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 102220070930 rs794728599 Human genes 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
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Abstract
The invention discloses a railway vehicle sanding control method, a railway vehicle sanding control device and a computer storage medium, wherein the railway vehicle sanding control method comprises the following steps: receiving and judging whether the actual adhesion coefficient of the railway vehicle is smaller than the theoretical adhesion coefficient; if yes, judging whether a sliding carriage exists in the railway vehicle or not; if yes, controlling at least one sand sprayer positioned in front of the sliding carriage to perform sand spraying operation in the running direction of the railway vehicle, and improving the actual adhesion coefficient of the railway vehicle. The sand spraying control method for the railway vehicle is simple and easy to realize, improves the accuracy of adhesion management and sand spraying management of the railway vehicle, realizes closed-loop control of adhesion management, has high accuracy and good adhesion braking effect, and further improves the adhesion performance of the railway vehicle.
Description
Technical Field
The invention relates to the technical field of urban rail vehicle braking systems, in particular to a rail vehicle sanding control method, a rail vehicle sanding control device and a computer storage medium.
Background
In the field of rail vehicles, the braking performance of the vehicle has been a concern for those skilled in the art and even for ordinary consumers, and the braking systems or braking devices of vehicles are largely divided into two main categories, i.e. adhesive braking and non-adhesive braking. The adhesion braking, i.e., the braking force, depends on the adhesion between the wheel tracks of the vehicle, and when the braking force exceeds the limit of the adhesion of the wheel tracks, the wheel slip phenomenon occurs.
In the prior art, a sand spraying system is configured in a method for improving the adhesion between the wheel rails of the vehicle, but after the sand spraying device is activated, the sand spraying function is ensured to be normal, accurate sand spraying management and adhesion management cannot be achieved, and the problem to be solved is that how to fully play the sand spraying function of the sand spraying device and dynamically adjust the sand spraying operation sequence of the sand spraying device when the adhesion of the wheel rails of the vehicle is reduced.
Disclosure of Invention
The invention aims to provide a sand spraying control method for a railway vehicle, which aims to solve the technical problem that the adhesive braking control efficiency cannot be effectively improved in the prior art.
One of the purposes of the invention is to provide a sand spraying control device for a railway vehicle.
It is an object of the present invention to provide a computer storage medium.
In order to achieve one of the above objects, the present invention provides a sand-spreading control method for a railway vehicle, comprising: receiving and judging whether the actual adhesion coefficient of the railway vehicle is smaller than the theoretical adhesion coefficient; if yes, judging whether a sliding carriage exists in the railway vehicle or not; if yes, controlling at least one sand sprayer positioned in front of the sliding carriage to perform sand spraying operation in the running direction of the railway vehicle, and improving the actual adhesion coefficient of the railway vehicle.
As a further improvement of an embodiment of the present invention, after the "determining whether a skid car exists in the railway vehicle", the method further includes: if not, sequentially controlling a plurality of sand spreaders to perform sand spreading operation according to the arrangement sequence of the sand spreaders in the running direction of the railway vehicle, and improving the actual adhesion coefficient of the railway vehicle.
As a further improvement of an embodiment of the present invention, the "sequentially controlling the plurality of sand spreaders to perform the sand spreading operation according to the arrangement order of the sand spreaders in the running direction of the rail vehicle" specifically includes: controlling a sand spraying device at the first carriage in the railway vehicle to perform sand spraying operation, and receiving and judging whether the updated actual adhesion coefficient is smaller than the theoretical adhesion coefficient; if yes, controlling sand spreaders at the first carriage and the second carriage in the railway vehicle to simultaneously perform sand spreading operation; and iteratively judging and selectively controlling the sand spraying devices at other carriages in the railway vehicle to perform sand spraying operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
As a further improvement of an embodiment of the present invention, before the "receiving and judging whether the actual adhesion coefficient of the rail vehicle is smaller than the theoretical adhesion coefficient", the method further includes: acquiring and calculating the actual adhesion coefficient according to the deceleration value of the railway vehicle; wherein the actual sticking coefficient is the ratio of the deceleration value to the gravitational acceleration.
As a further improvement of an embodiment of the present invention, the "determining whether a skid car exists in the railway vehicle" specifically includes: detecting first to fourth angular speeds of first to fourth wheel pairs of a first carriage, calculating an average value of the four wheel diagonal speeds, respectively comparing first difference values of the first to fourth angular speeds and the average angular speed, and judging whether the first difference values are in a preset range; if not, judging that the railway vehicle slides, and defining the first carriage as the sliding carriage; if yes, judging that the railway vehicle does not slide, and continuously judging whether other carriages in the vehicle are the sliding carriages.
As a further improvement of an embodiment of the present invention, the "controlling at least one sand blaster located before the skid steer carriage to perform a sand blast operation in a running direction of the rail vehicle" specifically includes: and in the running direction of the railway vehicle, sequentially controlling a plurality of sand spreaders positioned in front of the sliding carriage to perform sand spreading operation according to the sequence from near to far of the sand spreaders from the sliding carriage.
As a further improvement of an embodiment of the present invention, the "sequentially controlling a plurality of sand spreaders located in front of the skid steer carriage to perform a sand spreading operation in order of distance from the sand spreader to the skid steer carriage" specifically includes: controlling a sand spraying device at a position, relative to a front carriage of the sliding carriage, in the railway vehicle to perform sand spraying operation, and receiving and judging whether the updated actual adhesion coefficient is smaller than a theoretical adhesion coefficient or not; if yes, controlling sand spreaders at the front two carriages of the railway vehicle relative to the sliding carriage to simultaneously perform sand spreading operation; and iteratively judging and selectively controlling sand spraying devices positioned at a plurality of vehicles in front of the sliding carriage in the railway vehicle to perform sand spraying operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
As a further improvement of an embodiment of the present invention, the "controlling at least one sand blaster located before the planing cabin" to perform a sand blasting operation specifically includes: the total number of sand applicators performing the sanding operation and the sanding rate thereof are controlled.
To achieve one of the above objects, an embodiment of the present invention provides a railway vehicle sanding control device including a sanding control module including a memory and a processor, the memory possibly having a computer program running on the processor, the processor executing the computer program to perform the steps of the railway vehicle sanding control method described above.
In order to achieve one of the above objects, the present invention also provides a computer storage medium in which a computer program is stored, and which when executed causes an apparatus in which the computer storage medium is located to perform the steps of the above-described rail vehicle sanding control method.
Compared with the prior art, the embodiment of the invention has at least one of the following beneficial effects:
according to the invention, the sand spraying control method of the railway vehicle is adopted, and the sand spraying device which needs to perform sand spraying operation before the railway carriage is accurately controlled when the railway vehicle slides by judging the magnitude relation between the actual adhesion coefficient and the theoretical adhesion coefficient of the railway vehicle, so that the railway carriage stops sliding, and thus, accurate sand spraying management and adhesion management are realized. In addition, the control method is simple and easy to realize, the sand spreader needing to perform sand spreading operation is accurately controlled by feeding back the actual adhesion coefficient of the current railway vehicle in real time, the closed-loop control of adhesion braking is realized, the accuracy of data acquisition is high, the adhesion braking effect is good, and the efficiency of adhesion braking of the railway vehicle can be effectively improved.
Drawings
Fig. 1 is a schematic diagram showing steps of a sand scattering control method for a railway vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing a refinement step of step S2 of the rail vehicle sanding control method in an embodiment of the present invention.
Fig. 3 is a schematic diagram showing a refinement step of step s3a_a of a first example of a rail vehicle sanding control method in accordance with an embodiment of the present invention.
Fig. 4 is a schematic view of a railway vehicle in a running direction of a railway vehicle sanding control method in accordance with an embodiment of the present invention.
Fig. 5 is a schematic diagram showing a refinement step of step S3B of a second example of a rail vehicle sanding control method in an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.
It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the description of the embodiments of the present invention, the terms "upper", "lower" and "vertical" and the like refer to the orientation or positional relationship shown in the drawings, generally with reference to the apparatus or device or the like in normal use, and do not indicate that the location or element referred to must have a particular orientation. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the field of rail traffic, braking force not exceeding adhesion is an important condition for ensuring safe running of a vehicle, and the adhesion changes along with the change of the adhesion coefficient, so that the expected adhesion coefficient can be achieved by controlling the sanding operation of a sand spreader. Therefore, the method has important practical significance in realizing the accurate sand spraying control process in the field of railway vehicles.
Based on the above, the invention provides a sand spraying control method for a railway vehicle, as shown in fig. 1, specifically comprising the following steps:
and S1, receiving and judging whether the actual adhesion coefficient of the railway vehicle is smaller than the theoretical adhesion coefficient.
If yes, jumping to step S2, and judging whether a sliding carriage exists in the railway vehicle.
If yes, step S3A is skipped, and at least one sand spraying device positioned in front of the sliding carriage is controlled to perform sand spraying operation in the running direction of the railway vehicle, so that the actual adhesion coefficient of the railway vehicle is improved.
In this way, the actual adhesion coefficient of the current railway vehicle is fed back in real time, and the sand spreader which needs to perform sand spreading operation before the railway carriage is dynamically and accurately controlled in the running direction of the railway vehicle, so that the railway carriage stops sliding, and the closed-loop control of the adhesion braking system is realized; meanwhile, the actual adhesion coefficient of the vehicle is received in real time according to the actual working condition of the railway vehicle, the acquired data is high in accuracy, the adhesion braking effect is good, and the efficiency of adhesion braking of the vehicle can be effectively improved.
For step S1, the theoretical adhesion coefficient may be a preset value or adaptively generated according to the actual working condition of the rail vehicle, which is not limited herein.
The actual adhesion coefficient may be obtained by detecting the deceleration value of the railway vehicle before step S1. Specifically, the step S1 may further include the steps of: and detecting and acquiring the deceleration value of the railway vehicle, and calculating the ratio of the deceleration value to the gravity acceleration to obtain the current actual adhesion coefficient of the railway vehicle.
In this way, the actual adhesion coefficient of the current railway vehicle is obtained through calculation by detecting the deceleration value of the railway vehicle, the process is simple and easy to realize, and meanwhile, the accuracy of data is higher based on actual data detection.
For step S2, after the step of "determining whether there is a skid car in the railway vehicle", it further includes:
if not, the step S3B is skipped, and the sand spraying operation is sequentially controlled by a plurality of sand spraying devices according to the arrangement sequence of the sand spraying devices in the running direction of the railway vehicle, so that the actual adhesion coefficient of the railway vehicle is improved.
Therefore, when no sliding carriage exists in the railway vehicle, the sand spraying device is controlled to perform sand spraying operation according to the preset sequence, the sand spraying sequence is high in reliability, the current sand spraying condition is fed back in real time according to the actual adhesion coefficient, and the time efficiency and the accuracy are high.
The sliding carriage characterizes a carriage which is currently in a sliding state in the running process of the railway vehicle. For the presence of a skid car in the current rail vehicle, the determination may be accomplished by detecting the wheel set of the car. Specifically, as shown in fig. 2, step S2 may specifically include:
step S21, detecting first to fourth angular velocities of first to fourth wheel pairs of a first carriage, calculating average values of four wheel diagonal velocities, respectively comparing first difference values of the first to fourth angular velocities and the average angular velocity, and judging whether the first difference values are in a preset range.
If not, jumping to step S22A, judging that the railway vehicle slides, and defining the first carriage as the sliding carriage.
If yes, step S23B is skipped, and it is determined that the rail vehicle is not coasting, and it is further determined whether other cars in the rail vehicle are the coasting cars.
In this way, whether the carriage to be detected currently slides or not, that is, whether the sliding carriage exists in the railway vehicle or not is judged by detecting the angular velocity difference value of the wheel set of the carriage in the railway vehicle. The process is simple and easy to realize, and meanwhile, based on actual data detection, the accuracy of the data is high and the error is small.
It will be appreciated that the first car in step S21 is not necessarily directed to the first car of the rail vehicle during travel, but is any car on the rail vehicle.
After the first car determination is completed, it may also be iteratively determined whether other cars in the rail vehicle are also planing cars. For example, a second difference corresponding to the second car is generated, and such a solution is contemplated by those skilled in the art and will not be described herein.
Furthermore, in one embodiment, the determination may also be accomplished by detecting deceleration of the wheelset of the car in the rail vehicle 。 Specifically, step S2 may specifically include: detecting a deceleration value of a first wheel set and a deceleration value of a second wheel set of a carriage to be detected in the railway vehicle, and judging whether the deceleration value of the first wheel set and the deceleration value of the second wheel set do not exceed a preset value; if yes, judging that the carriage does not slide. If not, judging that the carriage slides.
In order to more precisely control the sanding sequence of the sander, when a sliding carriage exists in a railway vehicle, the invention provides a step S3A and a step S3B for refining, so that the sander can be dynamically adjusted to execute sanding operation according to the actual adhesion coefficient of the current vehicle, and the sanding management and the adhesion management are refined, so that the management precision and the vehicle adhesion performance are improved.
For step S3A, it may specifically include: and in the running direction of the railway vehicle, sequentially controlling a plurality of sand spreaders positioned in front of the sliding carriage to perform sand spreading operation according to the sequence from near to far of the sand spreaders from the sliding carriage.
Therefore, in the running direction of the railway vehicle, the sand spraying operation is carried out by judging the distance between the sand spraying device and the sliding carriage and sequentially controlling the sand spraying device before the sliding carriage, so that the actual adhesion coefficient of the railway vehicle is improved, the control process is simple and easy to realize, the adhesion braking effect is good, and the adhesion braking performance is high.
Wherein the running direction refers to the running direction of the railway vehicle. For example, the rail vehicle includes first to sixth cars, and the first car is in front of the first car, and the running direction of the vehicle is the direction from the sixth car to the first car.
Specifically, in the first embodiment, as shown in fig. 3, the "sequentially controlling a plurality of sand spreaders located in front of the skid steer carriage to perform sand spreading operation" section may specifically include:
in step S31A, a sand spraying operation is performed with respect to a sand spraying device at a preceding car of the planing car in the railway vehicle, and it is received and judged whether the updated actual adhesion coefficient is smaller than the theoretical adhesion coefficient.
If yes, step S32A is skipped, and the sand spraying operation is simultaneously performed with respect to the sand spraying devices at the front two carriages of the planing carriage in the railway vehicle.
And step S33A, iteratively judging and selectively controlling sand spreaders positioned at a plurality of carriages before the sliding carriage in the railway vehicle to perform sand spreading operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
Therefore, when the sliding carriage exists in the railway vehicle, the quantity of the sand spreaders and the order of performing the sand spreading operation are dynamically adjusted according to the current actual adhesion coefficient of the railway vehicle, so that the controllability of the sand spreaders is improved, the accuracy of performing the sand spreading operation of the sand spreaders is also improved, the reasonable utilization of sand is facilitated, the resources are saved, and the cost is reduced.
Wherein the "selectivity" in step S33A characterizes on the one hand the number of sand blasters, i.e. selecting one or several sand blasters to perform the sand blasting operation; another aspect characterizes whether the sander is operational, i.e., whether a particular sander is selected to perform a sanding operation or not.
As shown in fig. 4, when the urban rail vehicle includes 6 cars, each car includes two wheel sets, and the running direction of the vehicle is from left to right, this embodiment specifically includes, for example:
when the 3 rd carriage M3 of the urban rail vehicle is detected to slide in the running process of the vehicle, controlling the sand spraying device at the position of the previous carriage M2 of the sliding carriage M3 in the running direction to perform sand spraying operation, and calculating and judging whether the actual adhesion coefficient of the vehicle after the current update is smaller than the theoretical adhesion coefficient after the sand spraying device at the position of the M2 carriage performs sand spraying operation. If yes, the first two carriages of the sliding carriage M3 are continuously controlled, namely, sand spraying devices at the carriage M2 and the carriage M1 are controlled to simultaneously execute sand spraying operation, after the sand spraying device at the carriage M1 also executes sand spraying operation, the current updated actual adhesion coefficient is calculated in real time, and whether the current updated actual adhesion coefficient is smaller than the theoretical adhesion coefficient is continuously judged. And iteratively executing the steps S31A to S32A until the current actual adhesion coefficient of the urban rail vehicle reaches the theoretical adhesion coefficient, and ending the sanding operation.
With continued reference to fig. 4, it is emphasized that each car of the urban rail vehicle includes two sets of wheels, namely four wheels. The M2 carriage comprises a first wheel set W1 and a second wheel set W2, wherein the first wheel set W1 comprises a wheel number 1 and a wheel number 2, and the second wheel set W2 comprises a wheel number 3 and a wheel number 4. When the sand spraying operation is performed by controlling the sand spraying device at the position of the car M2 before the sliding car M3, preferably, the sand spraying operation may be performed by controlling the sand spraying device at the position of the second wheel set W2 in the car M2 first, and when the actual adhesion coefficient cannot meet the requirement of the theoretical adhesion coefficient, the sand spraying operation may be performed by controlling the sand spraying device at the position of the first wheel set W1 in the car M2. Likewise, when controlling the sander at the M1 car to also perform a sanding operation, the M1 car also performs a similar sanding sequence, not specifically described herein.
With continued reference to fig. 4, further, when the taxi is the first section of the vehicle in the running direction, the sand spreader at the current taxi is controlled to perform the sand spreading operation. Specifically, in the vehicle running direction, when the first compartment M1 is slippery, the sand blasters at the first wheel set W1 and the second wheel set W2 at the compartment M1 are controlled to perform sand blasting operation. And if the actual adhesion coefficient after the sanding operation is executed does not reach the theoretical adhesion coefficient, controlling the sanding devices at all carriages in the current urban rail vehicle to execute the sanding operation at the same time until the actual adhesion coefficient is equal to the theoretical adhesion coefficient, and stopping the sanding operation.
Preferably, in the second embodiment, as shown in fig. 5, the "sequentially controlling a plurality of sand spreaders to perform the sand spreading operation in the order of setting the sand spreaders in the running direction of the rail vehicle" in step S3B may specifically include:
and S31B, controlling a sand spraying device at the first carriage in the railway vehicle to perform sand spraying operation, and receiving and judging whether the updated actual adhesion coefficient is smaller than the theoretical adhesion coefficient.
If yes, step S32B is skipped, and the sand spraying operation is simultaneously performed by the sand spraying devices at the first carriage and the second carriage in the railway vehicle.
And step S33B, iteratively judging and selectively controlling the sand spraying devices at other carriages in the railway vehicle to perform sand spraying operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
When the current actual adhesion coefficient of the railway vehicle cannot meet the theoretical adhesion coefficient, a plurality of sand spreaders are sequentially controlled according to a preset sand spreading sequence, so that the accuracy of sand spreading operation of the sand spreaders is improved; the preset sanding sequence is convenient for updating and maintaining the sanding management of the following vehicles, and the operability is improved; and moreover, the real-time feedback of the adhesion coefficient of the vehicle is beneficial to the reasonable utilization of sand, so that the resources are saved, the cost is reduced, and the environment is protected.
The meaning of the "selectivity" in step S33B is the same as that of the "selectivity" in step S33A, and is not described herein.
With continued reference to fig. 4, specifically, when the existence of the planing carriage is not detected in the urban rail vehicle, sequentially controlling the sand spraying devices at the carriage M1 to perform sand spraying operation according to the setting sequence M1-M2-M3-M4-M5-M6 of the sand spraying devices in the running direction of the vehicle, calculating and judging in real time whether the updated actual adhesion coefficient of the current urban rail vehicle is smaller than the theoretical adhesion coefficient, if yes, continuously controlling the sand spraying devices at the carriage M2 to perform sand spraying operation, and repeatedly executing the steps S31B to S32B until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
In order to further improve the precision of sand spraying management and adhesion management of the railway vehicle, after steps S1 to S3A or steps S1 to S3B are executed, when the actual adhesion coefficient of the railway vehicle still does not reach the theoretical adhesion coefficient, the invention further refines the step S3A.
Specifically, in one embodiment, the "control at least one sander located before the skid steer carriage to perform sanding operation" section in step S3A may specifically include: the total number of sand applicators performing the sanding operation and the sanding rate thereof are controlled.
Therefore, the number of the sand spreaders and the sand spreading rate for performing sand spreading operation are dynamically adjusted, so that the accuracy of sand spreading management can be further improved, and the intellectualization of sand spreading management of the railway vehicle is realized.
The invention also provides a railway vehicle sanding control device, which comprises a sanding control module, wherein the sanding control module comprises a memory and a processor, the memory is possibly provided with a computer program running on the processor, and the processor realizes the steps of the railway vehicle sanding control method according to any one of the technical schemes when executing the computer program.
The invention also provides a computer storage medium in which a computer program is stored, and which when run causes an apparatus in which the computer storage medium is located to perform the steps of the railway vehicle sanding control method according to any one of the preceding claims.
In summary, the invention provides a sand spraying control method for a railway vehicle. When the actual adhesion coefficient of the railway vehicle does not reach the theoretical adhesion coefficient, whether the railway carriage exists in the railway vehicle is further judged. When a sliding carriage exists in the railway vehicle, controlling at least one sand spreader positioned in front of the sliding carriage to perform sand spreading operation in the running direction of the railway vehicle; otherwise, when the sliding carriage does not exist, the sand spraying operation of the sand spraying devices is controlled to be performed sequentially according to the arrangement sequence of the sand spraying devices in the running direction of the railway vehicle. Therefore, the actual adhesion coefficient is obtained by recording the actual running data of the railway vehicle through calculation, and the accuracy of the data is high; furthermore, according to the current actual adhesion coefficient of the railway vehicle, which sand sprayer on the vehicle executes sand spraying operation is accurately controlled, the adhesion management and the closed-loop control of the sand spraying management are realized, and the accuracy of the adhesion management and the efficiency of the adhesion braking control of the vehicle are improved.
Furthermore, according to whether the rail vehicle has a sliding vehicle or not, the order and the quantity of the sand spreaders are dynamically adjusted, so that the accuracy of sand spreading management and adhesion management is improved, the intellectualization of the sand spreading management of the rail vehicle is realized, and the rail vehicle sand spreading management system is beneficial to reasonably utilizing sand, saving resources, reducing cost and protecting environment.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. A method of controlling sanding of a rail vehicle comprising the steps of:
receiving and judging whether the actual adhesion coefficient of the railway vehicle is smaller than the theoretical adhesion coefficient;
if yes, judging whether a sliding carriage exists in the railway vehicle or not;
if yes, controlling at least one sand sprayer positioned in front of the sliding carriage to perform sand spraying operation in the running direction of the railway vehicle, and improving the actual adhesion coefficient of the railway vehicle;
wherein the actual adhesion coefficient is the ratio of the deceleration value of the railway vehicle to the gravity acceleration; the planing carriage characterizes the carriage in a planing state currently in the running process of the railway vehicle.
2. The railway vehicle sanding control method of claim 1, wherein after the step of determining whether a railcar is present in the railway vehicle, the method further comprises:
if not, sequentially controlling a plurality of sand spreaders to perform sand spreading operation according to the arrangement sequence of the sand spreaders in the running direction of the railway vehicle, and improving the actual adhesion coefficient of the railway vehicle.
3. The method for controlling sanding of a railway vehicle according to claim 2, wherein the step of sequentially controlling the plurality of sanding machines to perform the sanding operation according to the arrangement order of the sanding machines in the running direction of the railway vehicle specifically comprises:
controlling a sand spraying device at the first carriage in the railway vehicle to perform sand spraying operation, and receiving and judging whether the updated actual adhesion coefficient is smaller than the theoretical adhesion coefficient;
if yes, controlling sand spreaders at the first carriage and the second carriage in the railway vehicle to simultaneously perform sand spreading operation;
and iteratively judging and selectively controlling the sand spraying devices at other carriages in the railway vehicle to perform sand spraying operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
4. The method of controlling sanding of a rail vehicle according to claim 1, wherein the determining whether a railcar is present in the rail vehicle specifically includes:
detecting first to fourth angular velocities of first to fourth wheel pairs of a first carriage respectively, calculating an average value of the first to fourth angular velocities to obtain an average angular velocity, comparing first difference values of the first to fourth angular velocities and the average angular velocity respectively, and judging whether the first difference values are within a preset range;
if not, judging that the railway vehicle slides, and defining the first carriage as the sliding carriage;
if yes, judging that the railway vehicle does not slide, and continuously judging whether other carriages in the railway vehicle are the sliding carriages.
5. The railway vehicle sanding control method as claimed in claim 1, wherein the controlling at least one sanding machine located before the skid in the running direction of the railway vehicle to perform a sanding operation specifically comprises:
and in the running direction of the railway vehicle, sequentially controlling a plurality of sand spreaders positioned in front of the sliding carriage to perform sand spreading operation according to the sequence from near to far of the sand spreaders from the sliding carriage.
6. The method of claim 5, wherein the step of sequentially controlling a plurality of sand spreaders positioned in front of the skid steer carriage to perform the sand spreading operation in the order of the distance from the sand spreader to the skid steer carriage from the near to the far comprises:
controlling a sand spraying device at a position, relative to a front carriage of the sliding carriage, in the railway vehicle to perform sand spraying operation, and receiving and judging whether the updated actual adhesion coefficient is smaller than a theoretical adhesion coefficient or not;
if yes, controlling sand spreaders at the front two carriages of the railway vehicle relative to the sliding carriage to simultaneously perform sand spreading operation;
and iteratively judging and selectively controlling sand spraying devices positioned at a plurality of vehicles in front of the sliding carriage in the railway vehicle to perform sand spraying operation until the updated actual adhesion coefficient is equal to the theoretical adhesion coefficient.
7. The method of controlling sanding of a rail vehicle according to claim 1, wherein the controlling at least one sanding machine located in front of the skid car to perform a sanding operation comprises: the total number of sand applicators performing the sanding operation and the sanding rate thereof are controlled.
8. A sand spraying control device for a railway vehicle is characterized in that,
the control device includes: a sanding control module including a memory and a processor, the memory having a computer program executable on the processor, the processor implementing the steps of the rail vehicle sanding control method of any of claims 1-7 when the computer program is executed.
9. A computer storage medium in which a computer program is stored and which when run causes an apparatus in which the computer storage medium is located to perform the steps of the rail vehicle sanding control method as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310122834.9A CN116424373B (en) | 2023-02-16 | 2023-02-16 | Rail vehicle sanding control method and device and computer storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310122834.9A CN116424373B (en) | 2023-02-16 | 2023-02-16 | Rail vehicle sanding control method and device and computer storage medium |
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| Publication Number | Publication Date |
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| CN116424373A CN116424373A (en) | 2023-07-14 |
| CN116424373B true CN116424373B (en) | 2023-12-15 |
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| CN202310122834.9A Active CN116424373B (en) | 2023-02-16 | 2023-02-16 | Rail vehicle sanding control method and device and computer storage medium |
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Citations (6)
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| JP2011116197A (en) * | 2009-12-02 | 2011-06-16 | Toyo Electric Mfg Co Ltd | Adhesion reinforcing device |
| CN106379332A (en) * | 2016-11-11 | 2017-02-08 | 中车株洲电力机车有限公司 | Rail vehicle and sand sprinkling system thereof |
| CN108928353A (en) * | 2018-06-06 | 2018-12-04 | 中车青岛四方机车车辆股份有限公司 | Train stucco method and device |
| CN212473438U (en) * | 2020-07-15 | 2021-02-05 | 中车长春轨道客车股份有限公司 | Sanding control system of railway passenger car |
| CN112406915A (en) * | 2019-08-23 | 2021-02-26 | 中车唐山机车车辆有限公司 | Sanding control method based on vehicle sliding rate and terminal equipment |
| CN114426034A (en) * | 2022-01-14 | 2022-05-03 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle sliding state detection method and rail vehicle |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011116197A (en) * | 2009-12-02 | 2011-06-16 | Toyo Electric Mfg Co Ltd | Adhesion reinforcing device |
| CN106379332A (en) * | 2016-11-11 | 2017-02-08 | 中车株洲电力机车有限公司 | Rail vehicle and sand sprinkling system thereof |
| CN108928353A (en) * | 2018-06-06 | 2018-12-04 | 中车青岛四方机车车辆股份有限公司 | Train stucco method and device |
| CN112406915A (en) * | 2019-08-23 | 2021-02-26 | 中车唐山机车车辆有限公司 | Sanding control method based on vehicle sliding rate and terminal equipment |
| CN212473438U (en) * | 2020-07-15 | 2021-02-05 | 中车长春轨道客车股份有限公司 | Sanding control system of railway passenger car |
| CN114426034A (en) * | 2022-01-14 | 2022-05-03 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle sliding state detection method and rail vehicle |
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