Inflatable outer windscreen, rail vehicle and control method

Abstract

The application discloses an inflatable outer wind deflector, a rail vehicle and a control method. The inflatable outer wind deflector is arranged between adjacent carriages of the rail vehicle and comprises two inflatable capsules which are arranged between end walls of the adjacent carriages, are located at left and right sides of the rail vehicle in a running direction and are oppositely arranged, are configured to be inflated and stretched and deflated and compressed, and are arranged to fill gaps between the adjacent carriages; two control mechanisms which are respectively communicated with the two inflatable capsules and are configured to discharge gas from the inflatable capsules or control the gas to enter the inflatable capsules; and the control mechanisms are configured to deflate the inflatable capsule located at an inner side and inflate the inflatable capsule located at an outer side in a case that the rail vehicle runs in a small-radius curve position, so as to adapt to the running position of the rail vehicle.

Description

TECHNICAL FIELD

[0001] At least one embodiment of the present disclosure relates to the field of rail vehicle technology, in particular to an inflatable outer wind deflector suitable for being arranged between adjacent carriages of a rail vehicle, a rail vehicle and a control method. BACKGROUND

[0002] Soft connections are generally used between adjacent carriages of a rail vehicle to allow a certain relative movement between the adjacent carriages at the connection. An outer wind deflector is generally provided at the soft connection to achieve the effect of wind resistance reduction.

[0003] The existing outer wind deflector generally installs rubber capsules on the two end walls of adjacent carriages. When the rail vehicle is running, the relative movement occurs between the adjacent carriages, and the rubber capsules will be subjected to extrusion and stretching. Especially in the case of small-radius curve running pose of the vehicle, the rubber capsules of the outer wind deflector are stretched and compressed, and the rubber capsules are prone to be extruded and torn at the installation screw hole, and the rubber capsules cannot be reset after being extruded and torn, and the applicability of the outer wind deflector to the small-radius curve running pose is poor. SUMMARY

[0004] In view of the existing technical problems, the present disclosure provides an inflatable outer wind deflector, a rail vehicle and a control method, which are used to at least partially solve the above technical problems. The inflatable capsules are filled in the gap between the adjacent carriages, and the inflation or deflation is controlled to adapt to different running poses of the rail vehicle, thereby improving the applicability and wind resistance reduction effect.

[0005] An embodiment of the present disclosure provides an inflatable outer wind deflector suitable for being arranged between adjacent carriages of a rail vehicle, comprising: two inflatable capsules installed between the end walls of the adjacent carriages, located on the left and right sides of the running direction of the rail vehicle and oppositely arranged, and configured to be inflated and stretched and deflated and compressed to fill the gap between the adjacent carriages; and two control mechanisms respectively communicating with the two inflatable capsules and configured to exhaust or control the gas into the inflatable capsules; and wherein the control mechanism is configured to exhaust the inflatable capsule located on the inner side and inflate the inflatable capsule located on the outer side to adapt to the running pose of the rail vehicle in the case of small-radius curve running pose of the rail vehicle.

[0006] According to an embodiment of the present disclosure, the control mechanism comprises: a charging pipe in communication with a gas source of the rail vehicle; an exhaust pipe in communication with the outside atmosphere; a communication pipe in communication with the inflatable capsule; a first control component in communication with the communication pipe and connected with the charging pipe and the exhaust pipe, configured to communicate with the exhaust pipe to release the gas in the inflatable capsule when the distance between the adjacent carriages is less than a preset distance range value, or to communicate with the charging pipe to inflate the inflatable capsule when the distance between the adjacent carriages is greater than the preset distance range value, wherein the preset distance range value is a distance range between the adjacent carriages when the rail vehicle is in a non-small-radius curve operating position; and a second control component installed on the communication pipe, configured to close the communication pipe to block the release of the gas in the inflatable capsule or the inflation of the inflatable capsule when the pressure between the inflatable capsule and the carriage reaches a preset pressure range, wherein the preset pressure range is a pressure range between the inflatable capsule and the adjacent carriage when the rail vehicle is in the non-small-radius curve operating position.

[0007] According to an embodiment of the present disclosure, the first control component comprises: a distance sensor installed between the adjacent carriages and located at the end of the carriages in the transverse direction, configured to obtain the distance between the adjacent carriages; and a switching valve responsive to the distance sensor, controlling the communication pipe to communicate with the exhaust pipe or the charging pipe.

[0008] According to an embodiment of the present disclosure, the first control component comprises: a height valve installed on the end wall of one of the adjacent carriages, a swing arm of the height valve being configured to control the height valve to communicate with the exhaust pipe or the charging pipe; and an adjustment rod rotatably installed on the end wall of the other of the adjacent carriages, an end of the adjustment rod being hinged to the swing arm, the adjustment rod extending substantially along the length direction of the carriage when the distance between the adjacent carriages is in the preset distance range value; wherein the adjustment rod rotates and drives the swing arm to rotate when the distance between the adjacent carriages is less than the preset distance range value, so that the height valve communicates with the exhaust pipe, and the height valve communicates with the charging pipe when the distance between the adjacent carriages is greater than the preset distance range value.

[0009] According to an embodiment of the present disclosure, the second control assembly comprises a pressure sensor configured to acquire the pressure between the air-filled capsule and the car body, and a control valve installed on the communication pipe and configured to close the communication pipe to block the release of the gas in the air-filled capsule or the inflation of the air-filled capsule when the pressure acquired by the pressure sensor is within the preset pressure range.

[0010] According to an embodiment of the present disclosure, a pressure difference valve is arranged in communication between the two air-filled capsules, and the pressure difference valve is opened to enable the communication between the two air-filled capsules when the pressure difference between the two air-filled capsules is greater than a preset pressure difference range.

[0011] According to an embodiment of the present disclosure, a damping adjustment mechanism is further arranged between the two air-filled capsules, and the damping adjustment mechanism comprises a throttle pipe arranged in communication between the two air-filled capsules, a throttle valve installed on the throttle pipe and configured to adjust the air flow aperture of the throttle pipe, and an adjustment assembly configured to control the throttle valve to adjust the throttle pipe to a specified air flow aperture based on the primary snake frequency of the railway vehicle when the railway vehicle is in the small-radius curve running position, so that the two air-filled capsules are in communication to adjust the damping of the adjacent car bodies by the two air-filled capsules and suppress the vibration of the car bodies.

[0012] According to an embodiment of the present disclosure, the adjustment assembly comprises a speed sensor configured to acquire the relative swing speed of the adjacent car bodies, and an adjustment control module configured to acquire the primary snake frequency of the railway vehicle in response to the speed sensor to control the throttle valve (52) to adjust the throttle pipe (51) to the specified air flow aperture.

[0013] The second aspect of the present disclosure provides a railway vehicle, comprising a car body, an inflatable outer air deflector as described above arranged between adjacent car bodies of the car body to fill the gap between the adjacent car bodies to reduce wind resistance, and a mounting assembly configured to mount the air-filled capsule of the inflatable outer air deflector on the end wall of the adjacent car bodies.

[0014] The third aspect of the present disclosure provides a control method of the inflatable outer air deflector as described above, comprising determining the running position of the railway vehicle, and exhausting the air-filled capsule on the inner side and inflating the air-filled capsule on the outer side by using the control mechanism when it is determined that the running position is a small-radius curve running position.

[0015] According to an embodiment of the present disclosure, the determining the running pose of the rail vehicle comprises: acquiring a maximum distance and a minimum distance between adjacent carriages; and determining the running pose based on the maximum distance and the minimum distance; wherein in a case where the maximum distance is greater than a first preset value or the minimum distance is less than a second preset value, the running pose is determined as a small-radius curve running pose.

[0016] According to an embodiment of the present disclosure, the inflating and deflating of the inflatable capsules on the inner side and the outer side by the control mechanism comprises: performing the inflating operation on the inflatable capsules on the outer side and the deflating operation on the inflatable capsules on the inner side by a first control component; and in a case where the pressure between the inflatable capsules on the outer side and the carriages is within a preset pressure range and the pressure between the inflatable capsules on the inner side and the carriages is within a preset pressure range, blocking the inflating operation and the deflating operation by a second control component.

[0017] According to the inflatable outer wind screen, the rail vehicle and the control method provided by the present disclosure, the inflatable capsules are filled in the gap between adjacent carriages, the air flow outside the car body is blocked from flowing into the gap, and the wind resistance received by the rail vehicle during driving is reduced. In the process of the rail vehicle in a small-radius curve running pose, the inner side distance between adjacent carriages is small, the inflatable capsules on the inner side are squeezed and in a high-pressure state, the outer side distance between adjacent carriages is large, the inflatable capsules on the outer side are stretched and in a low-pressure state, the control mechanism controls the inflatable capsules on the inner side to deflate and the inflatable capsules on the outer side to inflate, thereby adapting to the small-radius curve running pose. The inflatable outer wind screen improves the wind blocking and resistance reducing effect and also improves the applicability to adapt to different running poses of the rail vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a side view of a rail vehicle according to an embodiment of the present disclosure;

[0019] Figure 2 is a side view of an inflatable outer wind screen according to an embodiment of the present disclosure;

[0020] Figure 3 is a working principle diagram of an inflatable outer wind screen according to an embodiment of the present disclosure;

[0021] Figure 4 is a side view of a first control component of an inflatable outer wind screen according to another embodiment of the present disclosure; and

[0022] Figure 5 is a flowchart of a control method of an inflatable outer wind screen according to an embodiment of the present disclosure.

[0023] REFERENCE NUMERALS

[0024] 1. a vehicle cabin;

[0025] 2. an airbag;

[0026] 3. a control mechanism;

[0027] 31. an inflation tube;

[0028] 32. a deflation tube;

[0029] 33. a first control assembly;

[0030] 331. a distance sensor;

[0031] 332. a switching valve;

[0032] 34. a second control assembly;

[0033] 341. a pressure sensor;

[0034] 342. a control valve;

[0035] 35. a communication tube;

[0036] 4. a differential pressure valve;

[0037] 5. a damping adjustment mechanism;

[0038] 51. a throttle tube;

[0039] 52. a throttle valve;

[0040] 53. an adjustment assembly;

[0041] 531. a speed sensor;

[0042] 532. an adjustment control module;

[0043] 6. a height valve;

[0044] 61. a swing arm;

[0045] 7. an adjustment lever. DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to specific embodiments and drawings.

[0047] It should be understood, however, that these descriptions are exemplary only and are not intended to limit the scope of the present application. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known techniques are not described in detail in order to avoid unnecessarily obscuring the concepts of the present application.

[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "includes" indicates the presence of the features, steps, operations, etc. but does not exclude the presence or addition of one or more other features.

[0049] In the event of using a phrase such as "at least one of A, B, and C," it will be understood that such a phrase is intended to mean A alone, B alone, C alone, combinations thereof, such as A and B, A and C, B and C, A, B, and C, and the like, unless otherwise specified, within the context of the specification.

[0050] All terms used herein (including technical and scientific terms) have the meanings commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein are to be interpreted as having a meaning that is consistent with the understanding of a person of ordinary skill in the art, and should not be interpreted in an idealized or overly formal manner.

[0051] The description of the structural embodiments and methods of the application disclosed herein. It should be understood that this is not intended to limit the application to the specific embodiments disclosed, and that the application can be implemented using other features, elements, methods and embodiments. Similar elements in different embodiments are generally labeled with similar numbers.

[0052] The outer wind screen between adjacent carriages of a rail vehicle generally uses a rubber capsule, which can play a role in wind resistance. When the rail vehicle is running, relative movement occurs between adjacent carriages, and the rubber capsule will be extruded and stretched. Especially in the case of small-radius curve running posture, the rubber capsule of the outer wind screen is stretched and compressed, and the rubber capsule is easily extruded and torn at the installation screw hole, and the rubber capsule cannot be reset after being extruded and torn, and the outer wind screen is not suitable for small-radius curve running posture.

[0053] In view of this, the embodiments of the present disclosure provide an inflatable outer wind screen, a rail vehicle and a control method.

[0054] Figure 1 is a side view of a rail vehicle according to an embodiment of the present disclosure.

[0055] A first aspect of the embodiments of the present disclosure provides a rail vehicle, as shown in Figure 1 The rail vehicle comprises a vehicle body, an inflatable outer wind deflector and a mounting assembly. The inflatable outer wind deflector is mounted between adjacent carriages 1 of the vehicle body to fill the gap between the adjacent carriages 1 and reduce wind resistance. The mounting assembly is configured to mount the inflatable capsules 2 of the inflatable outer wind deflector on the end walls of the adjacent carriages 1.

[0056] In an illustrative embodiment, the vehicle body comprises a plurality of carriages 1 and a plurality of couplers, which are respectively arranged between the adjacent carriages 1 to sequentially connect the plurality of carriages 1.

[0057] Figure 2 is a side view of the inflatable outer wind deflector according to the embodiments of the present disclosure.

[0058] As shown in Figure 1 and Figure 2 , the two inflatable capsules 2 of the inflatable outer wind deflector are mounted between the end walls of the adjacent carriages 1, and are respectively arranged on the left and right sides of the rail vehicle in the running direction and oppositely arranged. The top ends of the two inflatable capsules 2 abut each other, and the bottom ends of the two inflatable capsules 2 are spaced apart to allow the couplers to be arranged between the bottom ends of the two inflatable capsules 2. The inflatable capsules 2 abut the couplers, and the inflatable capsules 2 fill the periphery of the gap between the adjacent carriages 1 to block the airflow outside the vehicle body from flowing into the gap and reduce the wind resistance during the running of the rail vehicle.

[0059] In an illustrative embodiment, the mounting assembly comprises a connecting plate and a mounting member. The connecting plate is mounted on the outer wall of the inflatable capsule 2. The mounting member is mounted on the connecting plate, and the mounting member can be a bolt. The mounting member is detachably connected with the end wall of the carriage 1 and is configured to mount the inflatable capsule 2 on the end wall of the carriage 1 for easy disassembly and replacement.

[0060] According to the embodiments of the present disclosure, the running poses of the rail vehicle generally include a straight running pose, a large-radius curve running pose and a small-radius curve running pose. In the straight running pose and the large-radius curve running pose, the inflatable capsules 2 are subjected to smaller forces between the adjacent carriages 1, and in the small-radius curve running pose, the inflatable capsules 2 are subjected to larger forces between the adjacent carriages 1.

[0061] A second aspect of the embodiments of the present disclosure provides an inflatable outer wind deflector, as shown in Figure 1 and Figure 2 , the inflatable outer wind deflector is suitable for being arranged between the adjacent carriages 1 of the rail vehicle. The inflatable outer wind deflector comprises two inflatable capsules 2 and two control mechanisms 3.

[0062] Two inflatable capsules 2 are installed between the end walls of adjacent carriages 1 to fill the gap between adjacent carriages 1, and are configured to inflate and deflate. Two control mechanisms 3 are respectively connected to the two inflatable capsules 2, and are configured to discharge or control the gas into the inflatable capsules 2. The control mechanisms 3 are configured to deflate the inflatable capsules 2 on the inner side and inflate the inflatable capsules 2 on the outer side in the case of a small-radius curve running position of the railway vehicle, so as to adapt to the running position of the railway vehicle.

[0063] In an illustrative embodiment, the control mechanisms 3 can be connected to the vehicle control system of the railway vehicle to obtain the running signals of the railway vehicle. The running signals of the railway vehicle include the running direction signal and the running position signal of the railway vehicle, so as to determine the running position of the railway vehicle.

[0064] Figure 3 is a working principle diagram of the inflatable outer windscreen according to an embodiment of the present disclosure.

[0065] According to an embodiment of the present disclosure, as shown in Figure 2 and Figure 3 , the control mechanisms 3 include an inflation pipe 31, a deflation pipe 32, a communication pipe 35, a first control assembly 33, and a second control assembly 34. The inflation pipe 31 is connected to the gas source of the railway vehicle, the deflation pipe 32 is connected to the atmosphere, and the communication pipe 35 is connected to the inflatable capsules 2.

[0066] The first control assembly 33 is connected to the communication pipe 35 and connected to the inflation pipe 31 and the deflation pipe 32. The first control assembly 33 is configured to be connected to the deflation pipe 32 to release the gas in the inflatable capsules 2 when the distance between the adjacent carriages 1 is less than a preset distance range value, or connected to the inflation pipe 31 to inflate the inflatable capsules 2 when the distance between the adjacent carriages 1 is greater than the preset distance range value.

[0067] The second control assembly 34 is installed on the communication pipe 35 between the inflatable capsules 2 and the first control assembly 33. The second control assembly 34 is configured to close the communication pipe 35 to block the release of the gas in the inflatable capsules 2 or the inflation of the inflatable capsules 2 when the pressure between the inflatable capsules 2 and the carriages 1 reaches a preset pressure range.

[0068] Specifically, the preset distance range value represents the distance range between the adjacent carriages 1 when the railway vehicle is in a non-small-radius curve running position. The preset pressure range represents the pressure range between the inflatable capsules 2 and the adjacent carriages 1 when the railway vehicle is in a non-small-radius curve running position.

[0069] In an illustrative embodiment, as shown in Figure 2 and Figure 3As shown, the distance between adjacent carriages 1 can be obtained by installing distance sensors 331 at both ends between adjacent carriages 1 to obtain the distance information between adjacent carriages 1, to determine whether the distance between adjacent carriages 1 is within the preset range value; or through the camera device, to obtain the running pose of the rail vehicle, to determine whether the distance between adjacent carriages 1 is within the preset distance range value; or through communication connection with the vehicle control system of the rail vehicle, to obtain the running direction signal and the running pose signal of the rail vehicle, to determine whether the distance between adjacent carriages 1 is within the preset distance range value.

[0070] According to the embodiment of the present disclosure, during the small-radius curve running pose of the rail vehicle, the distance between the adjacent carriages 1 on the inner side is less than the preset distance range value, the pressure between the inflatable capsule 2 on the inner side and the adjacent carriages 1 is greater than the preset pressure range, the second control component 34 opens the communication pipe 35, and the first control component 33 is communicated with the exhaust pipe 32 to release the gas in the inflatable capsule 2 on the inner side. At the same time, the distance between the adjacent carriages 1 on the outer side is greater than the preset distance range value, the pressure between the inflatable capsule 2 on the outer side and the adjacent carriages 1 is less than the preset pressure range, the second control component 34 opens the communication pipe 35, and the first control component 33 is communicated with the inflation pipe 31 to inflate the inflatable capsule 2, thereby being suitable for the non-small-radius curve running pose of the rail vehicle.

[0071] In the case that the pressure between the two inflatable capsules 2 and the carriages 1 reaches the preset pressure range, the second control component 34 closes the communication pipe 35 to block the release of the gas in the inflatable capsule 2 or the inflation of the inflatable capsule 2, so that the pressure between the two inflatable capsules 2 and the carriages 1 is kept in a balanced state within the preset pressure range, thereby being suitable for different running poses of the rail vehicle, while ensuring the wind-blocking and drag-reducing effect, and improving the applicability of the inflatable outer wind deflector.

[0072] In an illustrative embodiment, as shown in Figure 2 and Figure 3 The first control component 33 includes a distance sensor 331 and a switching valve 332. The distance sensor 331 is installed between adjacent carriages 1 and located at the end of the transverse direction of the carriage 1, and is configured to obtain the distance on both sides between adjacent carriages 1. The switching valve 332 is responsive to the distance sensor 331 to control the communication pipe 35 to be communicated with the exhaust pipe 32 or the inflation pipe 31.

[0073] Specifically, the switching valve 332 can be an electrically operated three-way switching valve 332, which is in communication with the communication pipe 35 and connected with the inflation pipe 31 and the exhaust pipe 32. When the distance sensor 331 obtains a distance between the adjacent carriages 1 less than a preset distance range, the switching valve 332 is in communication with the exhaust pipe 32; when the distance sensor 331 obtains a distance between the adjacent carriages 1 greater than the preset distance range, the switching valve 332 is in communication with the inflation pipe 31.

[0074] Figure 4 is a side view of a first control assembly of an inflatable outer windscreen according to another embodiment of the disclosure.

[0075] In an alternative illustrative embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , the first control assembly 33 includes a height valve 6 and an adjusting rod 7. The height valve 6 is installed on an end wall of one of the adjacent carriages 1, and a swing arm 61 of the height valve 6 is configured to control the height valve 6 to be in communication with the exhaust pipe 32 or the inflation pipe 31.

[0076] The adjusting rod 7 is rotatably installed on an end wall of the other of the adjacent carriages 1, and a distal end of the adjusting rod 7 is hingedly connected with the swing arm 61. When the distance between the adjacent carriages 1 is within a preset distance range, the adjusting rod 7 extends substantially along the length direction of the carriage 1.

[0077] Specifically, when the railway vehicle is in a straight running position, the adjusting rod 7 is substantially perpendicular to the swing arm 61 of the height valve 6. When the railway vehicle is in a large-radius curve running position, the height valve 6 is not actuated. When the railway vehicle is in a small-radius curve running position, the adjusting rod is rotated about an axis perpendicular to the length direction of the carriage 1 to drive the swing arm 61 to rotate. When the distance between the adjacent carriages 1 on the inner side is less than the preset distance range, the adjusting rod 7 is rotated to drive the swing arm 61 to rotate, so that the height valve 6 is in communication with the exhaust pipe 32; when the distance between the adjacent carriages 1 on the outer side is greater than the preset distance range, the height valve 6 is in communication with the inflation pipe 31, so that the inflatable capsules 2 on the inner side are exhausted and the inflatable capsules 2 on the outer side are inflated to adapt to the small-radius curve running position of the railway vehicle.

[0078] According to an embodiment of the disclosure, as shown in Figure 2 and Figure 3As shown, the second control assembly 34 comprises a pressure sensor 341 and a control valve 342. The pressure sensor 341 is installed between the air bag 2 and the car body 1 and is configured to obtain the pressure between the air bag 2 and the car body 1. The control valve 342 is installed at the communication pipe 35 between the air bag 2 and the first control assembly 33, and the control valve 342 is configured to close the communication pipe 35 to block the release of the gas in the air bag 2 or the inflation of the air bag 2 when the pressure obtained by the pressure sensor 341 is within a preset pressure range. The preset pressure range is the pressure range between the air bag 2 and the adjacent car body 1 when the rail vehicle is in a non-small-radius curve operating position.

[0079] According to the embodiment of the present disclosure, when the rail vehicle is in a non-small-radius curve operating position, the pressure between the air bag 2 and the adjacent car body 1 is within a preset pressure range. When the rail vehicle is in a small-radius curve operating position, the first control assembly 33 on the inner side is in communication with the exhaust pipe 32, and the pressure sensor 341 obtains the pressure between the air bag 2 on the inner side and the adjacent car body 1, which is greater than the preset pressure range. The control valve 342 opens the communication pipe 35 to allow the release of the gas in the air bag 2, so that the pressure between the air bag 2 and the adjacent car body 1 decreases. When the pressure between the air bag 2 and the adjacent car body 1 reaches the preset pressure range, the control valve 342 closes the communication pipe 35, so that the pressure between the air bag 2 and the adjacent car body 1 is within the preset pressure range. The principle of the second control assembly 34 on the outer side controlling the air bag 2 on the outer side is the same, which is not described here. The first control assembly 33 and the second control assembly 34 control the inflation or deflation of the two air bags 2 to adapt to the rail vehicle in a small-radius curve operating position.

[0080] According to the embodiment of the present disclosure, as shown in Figure 2 and Figure 3 The differential pressure valve 4 is provided between the two air bags 2, and the differential pressure valve 4 is opened when the pressure difference between the two air bags 2 is greater than a preset pressure difference range, so that the two air bags 2 are in communication. The preset pressure difference range represents the pressure difference range between the two air bags 2 when the rail vehicle is in a non-small-radius curve operating position.

[0081] In such an embodiment, when the rail vehicle is in a small-radius curve operating position, the air pressure in the air bag 2 on the inner side is relatively large, and the air pressure in the air bag 2 on the outer side is relatively small. The pressure difference between the two air bags 2 is greater than the preset pressure difference range, and the differential pressure valve 4 opens the gas in the air bag 2 with relatively large air pressure to flow through the differential pressure valve 4 to the air bag 2 with relatively small air pressure, thereby assisting the adjustment of the control mechanism 3 on the two air bags 2, so that the two air bags 2 are in a balanced state and are both within the preset pressure range, thereby improving the efficiency of the adjustment of the air bag 2.

[0082] In addition, in the case of a breakdown such as a rupture of one of the inflatable capsules 2, the pressure differential valve inflates the ruptured inflatable capsule to perform rapid auxiliary adjustment, avoid excessive stiffness of the inflated capsule on one side, affect the running attitude of the railway vehicle, and ensure the safety of the running.

[0083] According to an embodiment of the present disclosure, as shown in Figure 2 and Figure 3 , the inflatable outer wind deflector further comprises a damping adjustment mechanism 5 arranged between the two inflatable capsules 2. The damping adjustment mechanism 5 comprises a throttle pipe 51, a throttle valve 52 and an adjustment assembly 53. The throttle pipe 51 is arranged in communication between the two inflatable capsules 2. The throttle valve 52 is installed on the throttle pipe 51, and the throttle valve 52 is configured to adjust the airflow aperture of the throttle pipe 51. The adjustment assembly 53 is configured to control the throttle valve 52 to adjust the throttle pipe 51 to a specified airflow aperture based on the primary hunting frequency of the railway vehicle in the case of a non-small-radius curve running attitude of the railway vehicle, so that the two inflatable capsules 2 are in communication to adjust the damping of the two inflatable capsules 2 on the adjacent carriages 1 and suppress the vibration of the carriages 1.

[0084] In an illustrative embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the adjustment assembly 53 comprises a speed sensor 531 and an adjustment control module 532. The speed sensor 531 is configured to obtain the relative swing speed of the adjacent carriages 1. The adjustment control module 532 obtains the primary hunting frequency of the railway vehicle in response to the speed sensor 531 to control the throttle valve 52 to adjust the throttle pipe 51 to a specified airflow aperture.

[0085] According to an embodiment of the present disclosure, the adjustment assembly 53 can be communicatively connected with a vehicle control system of the railway vehicle to obtain a running direction signal and a running attitude signal of the railway vehicle, or communicatively connected with the distance sensor 331 of the control mechanism 3 to determine the running attitude of the railway vehicle.

[0086] In the case of a non-small-radius curve running attitude of the railway vehicle, the speed sensor 531 obtains the relative swing speed of the adjacent carriages 1, and the adjustment control module 532 obtains the primary hunting frequency of the railway vehicle through low-pass filtering and Fourier transform processing, and determines the damping force required to suppress the primary hunting motion of the carriages 1 based on the mass of the carriages 1, and further determines the airflow aperture of the throttle pipe 51. The adjustment control module 532 controls the throttle valve 52 to adjust the throttle pipe 51 to a specified airflow aperture, so that the two inflatable capsules 2 are in communication to adjust the damping of the two inflatable capsules 2 on the adjacent carriages 1 and suppress the vibration of the carriages 1.

[0087] According to a third aspect of the present disclosure, a control method of the inflatable outer wind deflector is provided, comprising operations S110-S120.

[0088] Figure 5 is a flowchart of a control method of the inflatable outer wind deflector according to an embodiment of the present application.

[0089] Operation S110, determining the running pose of the rail vehicle.

[0090] Operation S120, in the case that the running pose is the small-radius curve running pose, using the control mechanism to deflate the inflatable capsules on the inner side and inflate the inflatable capsules on the outer side.

[0091] According to an embodiment of the present disclosure, the running pose of the rail vehicle includes a straight running pose, a large-radius curve running pose, and a small-radius curve running pose. In the case that the running pose is the small-radius curve running pose, the inflatable capsules on the inner side are compressed by a larger external force, and the air pressure in the inflatable capsules is large. At the same time, the inflatable capsules on the outer side are stretched by a larger external force, and the air pressure in the inflatable capsules is small. Using the control mechanism to deflate the inflatable capsules on the inner side and inflate the inflatable capsules on the outer side, balances the air pressure of the inflatable capsules on both sides, adjusts the volume of the gas in the inflatable capsules, to adapt to the small-radius curve running pose.

[0092] In an illustrative embodiment, in operation S110, determining the running pose of the rail vehicle, includes operations S111-S112.

[0093] Operation S111, obtaining the maximum distance and the minimum distance between the adjacent carriages.

[0094] Operation S112, determining the running pose based on the maximum distance and the minimum distance; wherein, in the case that the maximum distance is greater than a first preset value or the minimum distance is less than a second preset value, determining the running pose as the small-radius curve running pose.

[0095] According to an embodiment of the present disclosure, the distance between the left and right ends of the adjacent carriages can be obtained by a distance sensor. In the case that the running pose of the rail vehicle is the straight running pose and the large-radius curve running pose, the distance between the adjacent carriages is a preset distance range. The maximum value in the preset distance range is the first preset value, and the minimum value in the preset distance range is the second preset value.

[0096] In the case that the running pose of the rail vehicle is the small-radius curve running pose, the distance on the inner side between the adjacent carriages is the minimum distance, and the distance on the outer side between the adjacent carriages is the maximum distance. In the case that the maximum distance is greater than the first preset value or the minimum distance is less than the second preset value, determining the running pose as the small-radius curve running pose.

[0097] In an illustrative embodiment, the operation S120 of exhausting the air-filled capsules located at the inner side and inflating the air-filled capsules located at the outer side by using the control mechanism includes operations S121-S122.

[0098] The operation S121 performs the inflation operation on the air-filled capsules located at the outer side and the exhaust operation on the air-filled capsules located at the inner side by using the first control component.

[0099] The operation S122 blocks the inflation operation and the exhaust operation by using the second control component in a case where it is determined that the pressure between the air-filled capsules located at the outer side and the car body is in the preset pressure range and the pressure between the air-filled capsules located at the inner side and the car body is in the preset pressure range.

[0100] According to an embodiment of the present disclosure, the preset pressure range represents a pressure range between the air-filled capsules and the car body in a case where the running pose of the railway vehicle is a straight running pose and a large-radius curve running pose. In a case where it is determined that the running pose is a small-radius curve running pose, the first control component is used to perform the inflation operation on the air-filled capsules located at the outer side and the exhaust operation on the air-filled capsules located at the inner side. In a case where the pressure between the air-filled capsules located at the outer side and the car body and the pressure between the air-filled capsules located at the inner side and the car body are in the preset pressure range, the second control component is used to block the inflation operation and the exhaust operation.

[0101] According to the inflatable outer wind screen, the railway vehicle and the control method provided by the present disclosure, the air-filled capsules 2 are filled in the gap between the adjacent cars 1, block the airflow outside the car body from flowing into the gap, and reduce the wind resistance received by the railway vehicle during driving. When the railway vehicle is in a small-radius curve running pose, the inner side distance between the adjacent cars 1 is small, the air-filled capsules 2 located at the inner side are squeezed and in a high-pressure state, the outer side distance between the adjacent cars 1 is large, the air-filled capsules 2 located at the outer side are stretched and in a low-pressure state, the control mechanism 3 controls the air-filled capsules 2 located at the inner side to be exhausted and the air-filled capsules 2 located at the outer side to be inflated, thereby adapting to the small-radius curve running pose. The inflatable outer wind screen improves the wind-blocking and drag-reducing effect and the applicability to adapt to different running poses of the railway vehicle.

[0102] The above specific embodiments further illustrate the purpose, technical solutions and advantages of the present disclosure. It should be understood that the above embodiments are only specific embodiments of the present disclosure and are not used to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. An inflatable exterior windshield, characterized in that, Suitable for use between adjacent carriages (1) of a rail vehicle, including: Two inflatable capsules (2), installed between the end walls of adjacent carriages (1), are positioned on the left and right sides opposite each other in the direction of travel of the rail vehicle, and are configured to inflate and expand and deflate and compress to fill the gap between adjacent carriages (1); and Two control mechanisms (3), respectively connected to the two inflatable capsules (2), are configured to discharge gas from the inflatable capsules (2) or control the introduction of gas into the inflatable capsules (2); and The control mechanism (3) is configured to vent the inner air capsule (2) and inflate the outer air capsule (2) when the rail vehicle is in a small-radius curve running posture, so as to adapt to the running posture of the rail vehicle.

2. The inflatable windshield according to claim 1, characterized in that, The control mechanism (3) includes: An air inflator (31) is connected to the air source of the rail vehicle; The exhaust pipe (32) is connected to the outside atmosphere; A connecting pipe (35) is connected to the inflatable capsule (2); A first control component (33), connected to the connecting pipe (35) and connected to the inflation pipe (31) and the exhaust pipe (32), is configured to connect to the exhaust pipe (32) to release gas from the inflatable capsule (2) when the distance between adjacent carriages (1) is less than a preset distance range value, or to connect to the inflation pipe (31) to inflate the inflatable capsule (2) when the distance between adjacent carriages (1) is greater than the preset distance range value, wherein the preset distance range value is the distance range between adjacent carriages (1) when the rail vehicle is in a non-small radius curve running posture; and The second control component (34), installed in the connecting pipe (35), is configured to close the connecting pipe (35) when the pressure between the inflatable capsule (2) and the carriage (1) reaches a preset pressure range, so as to block the release of gas in the inflatable capsule (2) or the inflation of the inflatable capsule (2). The preset pressure range is the pressure range between the inflatable capsule (2) and the adjacent carriage (1) when the rail vehicle is in a non-small radius curve running posture.

3. The inflatable windshield according to claim 2, characterized in that, The first control component (33) includes: A distance sensor (331), installed between adjacent carriages (1) and located at the lateral end of the carriage (1), is configured to acquire the distance between adjacent carriages (1); and The switching valve (332), in response to the distance sensor (331), controls the connecting pipe (35) to connect with the exhaust pipe (32) or with the inflation pipe (31).

4. The inflatable exterior windshield according to claim 2, characterized in that, The first control component (33) includes: A height valve (6) is installed on the end wall of one of the adjacent carriages (1), and the swing arm (61) of the height valve (6) is configured to control the connection between the height valve (6) and the exhaust pipe (32) or the inflation pipe (31); and An adjusting rod (7) is rotatably mounted on the end wall of the other adjacent carriage (1). The end of the adjusting rod (7) is hinged to the swing arm (61). When the distance between the adjacent carriages (1) is within the preset distance range, the adjusting rod (7) extends approximately along the length of the carriage. When the distance between adjacent carriages (1) is less than the preset distance range value, the adjusting rod rotates and drives the swing arm to rotate, so that the height valve is connected to the exhaust pipe (32). When the distance between adjacent carriages (1) is greater than the preset distance range value, the height valve is connected to the inflation pipe (31).

5. The inflatable exterior windshield according to claim 2, characterized in that, The second control component (34) includes: A pressure sensor (341) is configured to acquire the pressure between the inflatable capsule (2) and the carriage (1); and A control valve (342), installed in the connecting pipe (35), is configured to close the connecting pipe (35) when the pressure obtained by the pressure sensor (341) is within the preset pressure range, thereby blocking the release of gas in the inflatable capsule (2) or the inflation of the inflatable capsule (2).

6. The inflatable windshield according to claim 1, characterized in that, A differential pressure valve (4) is provided between the two inflatable capsules (2). When the pressure difference between the two inflatable capsules (2) is greater than a preset pressure difference range, the differential pressure valve (4) opens, so that the two inflatable capsules (2) are connected. The preset pressure difference range is the pressure difference range between the two inflatable capsules (2) when the rail vehicle is in a non-small radius curve running posture.

7. The inflatable windshield according to any one of claims 1-6, characterized in that, It also includes a damping adjustment mechanism (5) disposed between the two inflatable capsules (2), the damping adjustment mechanism (5) comprising: A throttling tube (51) is connected between the two inflatable capsules (2); A throttle valve (52), installed in the throttle tube (51), is configured to adjust the airflow orifice diameter of the throttle tube (51); and The adjustment component (53) is configured to, based on the first serpentine frequency of the rail vehicle, control the throttle valve (52) to adjust the throttle tube (51) to a specified airflow orifice when the rail vehicle is in a non-small radius curve running posture, so that the two inflatable capsules (2) are connected to adjust the damping of the two inflatable capsules (2) on the adjacent carriage (1) and suppress the vibration of the carriage (1).

8. The inflatable windshield according to claim 7, characterized in that, The adjustment component (53) includes: Speed ​​sensor (531) is configured to acquire the relative oscillation speed of adjacent carriages (1); and The adjustment control module (532), in response to the speed sensor (531), acquires the first serpentine frequency of the rail vehicle to control the throttle valve (52) to adjust the throttle tube (51) to the specified airflow orifice.

9. A rail vehicle, characterized in that, include: Vehicle body; The inflatable exterior windshield as described in any of claims 1-8 is installed between adjacent compartments (1) of the vehicle body to fill the gap between adjacent compartments (1) and reduce wind resistance. as well as The mounting assembly is configured to mount the inflatable capsule (2) of the inflatable outer windshield to the end wall of the adjacent carriage (1).

10. A control method for an inflatable exterior windshield according to any one of claims 1-8, characterized in that, include: Determine the running posture of the rail vehicle; as well as When the operating posture is determined to be a small radius curve operating posture, the control mechanism is used to vent the air capsule located on the inner side and inflate the air capsule located on the outer side.

11. The control method according to claim 10, characterized in that, Determining the operating posture of the rail vehicle includes: Obtain the maximum and minimum distances between adjacent carriages; and The operating pose is determined based on the maximum and minimum distances; Specifically, if the maximum distance is greater than a first preset value or the minimum distance is less than a second preset value, the running posture is determined to be a small radius curve running posture.

12. The control method according to claim 10, characterized in that, The method of using a control mechanism to vent the inner inflatable capsule and inflate the outer inflatable capsule includes: The first control component is used to inflate the outer inflatable capsule and deflate the inner inflatable capsule; and When it is determined that the pressure between the outer inflatable capsule and the carriage is within a preset pressure range and the pressure between the inner inflatable capsule and the carriage is within a preset pressure range, the inflation operation and the deflation operation are blocked by the second control component.

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