KR101221038B1 - A tilting device of train - Google Patents

Abstract

The first and second airbags are installed between the lower block supporting the train wheel and the train main body installed above the lower block, and are symmetrically installed on each of the left and right sides based on the traveling direction of the train and independently expand and contract. A first and a second tilting guider installed between the lower block and the train main body to accommodate the first and second airbags and guide the first and second airbags to expand and contract in the vertical direction; Disclosed is a train tilting apparatus and a tilting train control system having the same, comprising first and second air supply parts for supplying pressurized air to each of the second airbags. According to the disclosed tilting device and the tilting train control system, a simple tilting device can be implemented by using an airbag to enable stable operation, and check the tilting state of the train in the corner section to check whether the tilting operation is normally performed. It can be controlled to ensure stable train operation by preventing large accidents.

Description

TILTING DEVICE OF TRAIN

The present invention relates to a train tilting apparatus and a tilting train control system having the same, which tilts and operates so as to keep the train at a constant speed without reducing the speed in a curved section.

In general, although the technology for improving the performance of the vehicle body has been greatly improved in order to achieve high speed, the train is limited to the performance of the vehicle body according to the environment of the track and the interval of the vehicle. Today, a variety of devices and methods are being developed to control the operation in order to increase the speed and safety at the same time on a limited track.

For example, Automatic Train Control (ATC) is a device that automatically controls the movement of trains and automatically executes train safety and train operation commands. Automatic Train Protection (ATP), Train Auto It is equipped with sub-systems such as automatic train protection (ATO) and automatic train stop (ATS).

These subsystems compare the actual speed with the limited maximum speed so as not to exceed the maximum allowable speed given to the train, limiting the speed of the train, or maintaining sufficient separation distance between the preceding train and the following train in order to avoid a train crash on the same track. The speed is limited by the function.

On the other hand, the ground signal to be displayed to the engineer can be largely divided into a color signal signal, a parallel signal signal, a slow signal signal, a temporary signal signal and the like according to the method to display.

In order to make the best use of the track, the color signal signal is divided into the signals to express the speed of the train. The three signals of stop, caution, and progress, stop, boundary, caution, deceleration, There are five manifestations of progress. By using such a signal, a control signal according to the presence or absence of another train in a predetermined section or the distance to the preceding train is manifested.

The speed of the train is controlled by the signal transmitted from the ground apparatus to the onboard apparatus depending on the presence of other trains or the distance from the preceding train in the set track.

In the case of manual control of the engineer, because the signal displayed differs according to the distance from the preceding train, the factor according to the topographical characteristics of the section was not considered, so it was not possible to increase the speed by simply looking at the signal.

For example, in a signaling system of five manifestations, there is a case where the speed should be reduced according to the terrain even in a section in which a progress signal is manifested.

In particular, the trend of higher speed is increasing the risk of derailment due to inertia in the curve section.

In recent years, the development and application of so-called tilting trains that can operate even in a curved section without reducing the speed of the train have been actively conducted. Such a tilting train can be operated normally while preventing derailment of the train without appropriately adjusting its tilting angle according to the curve of the track, that is, curvature.

However, in the case of the tilting train as described above, the tilting device is operated to adjust the tilting angle of the train for each curved section, and the tilting device must be normally operated to maintain an appropriate tilting angle according to curvature and driving speed in the curved section. However, when the tilting device does not operate normally, there is a problem that an accident such as a derailment occurs. Therefore, it is necessary to check whether the tilting device for adjusting the tilting angle of the tilting train is normally operated and to control the operation of the tilting train accordingly.

In addition, the development of a train tilting device that can increase the ride comfort by controlling the tilting angle of the tilting train stably and naturally.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and has an object of the present invention to provide a train tilting device capable of stably and naturally tilting a train and a tilting train control system having the same.

The train tilting apparatus of the present invention for achieving the above object is installed between the lower block supporting the train wheel and the train main body installed on the lower block, and symmetrically to each of the left and right sides based on the traveling direction of the train. First and second airbags installed and independently expandable and deflatable; First and second tilting guides installed between the lower block and the train main body to accommodate the first and second airbags, respectively, and to guide the expansion and contraction of the first and second airbags in the vertical direction. ; And first and second air supply parts for supplying pressurized air to the first and second airbags, respectively.

Here, each of the first and second tilting guide, each having a receiving portion for receiving the first and the second airbag, is fixed to either one of the lower block and the train body, the other side is slidably connected A housing body; And a stopper member installed on the housing main body to limit the amount of inflation when the first and second airbags are inflated.

In addition, it is preferable to further include a plurality of pressure gauges connected to each of the first and second airbags to measure the air pressure inside each airbag.

In addition, the train body is preferably connected to the left and right pivotal to the lower block.

In addition, the tilting train control system of the present invention for achieving the above object, the track information acquisition unit for obtaining information of the track on which the train operates; A traveling speed detector for detecting a traveling speed of the train; A train tilting device for tilting a train using air pressure when the train runs on a curved track; A tilting angle calculator for calculating a tilting angle of the train based on curvature information of the track obtained by the track information obtaining unit and a traveling speed of the train detected by the traveling speed detecting unit; A tilting angle detector for detecting an actual tilting angle of the train body when driving the curved section of the train; The train tilting device is controlled according to the tilting angle calculated by the tilting angle calculator to allow the train to be tilted in a curved section, and the calculated tilting angle is obtained by detecting the actual tilting angle detected by the tilting angle detector in the curved section. And a control unit for checking whether a normal tilting state is maintained as compared with the control unit.

Here, the train includes a lower block for supporting a train wheel, and a train body installed to be tiltable on an upper portion of the lower block, wherein the train tilting device is symmetrical to each of left and right sides based on a traveling direction of the train. First and second airbags installed so as to be independently expandable and deflatable and installed between the lower block and the lower block; First and second tilting guides installed between the lower block and the train main body to accommodate the first and second airbags, respectively, and to guide the expansion and contraction of the first and second airbags in the vertical direction. ; And first and second air supply parts for supplying pressurized air to the first and second airbags, respectively, wherein the first and second supply parts are independently driven and controlled by the controller.

In addition, it is preferable to further include a plurality of pressure gauges connected to each of the first and second airbags to measure the air pressure inside each airbag.

In addition, the tilting angle detector, it is preferable to include a tilt sensor or gyro sensor installed in the train.

According to the train tilting device of the present invention, by providing a tilting device having an airbag structure, the natural tilting operation of the train can be made, and at the same time to absorb the vibration or shock generated during the train operation to improve the train ride comfort do.

In addition, by providing a tilting guide for expanding and contracting the airbag in the vertical direction, the force caused by the expansion and contraction of the airbag act only in the vertical direction to increase the reliability of the tilting operation and to ensure a stable tilting operation Can be.

In addition, by installing a stopper member to limit the maximum value of the expansion force of the train tilting device, it is possible to fundamentally prevent the train from being tilted at an angle greater than necessary to ensure the safety of train operation.

In addition, according to the tilting train control system of the present invention, the train can be tilted through the train tilting device provided with an air bag, it is possible to make a natural tilting drive in particular.

In addition, by detecting the actual tilting angle of the train while driving the curved section and comparing it with the theoretical value, it is possible to check whether the train is in normal tilting operation and prevent accidents caused by abnormal operation of the train tilting device. It becomes possible.

1 is a schematic diagram illustrating a tilting train control system according to an exemplary embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view illustrating the train tilting apparatus shown in FIG. 1.
3 is a schematic plan view of the train tilting apparatus shown in FIG.
4 is a flowchart illustrating a train tilting control method using a tilting train control system according to an exemplary embodiment of the present invention.

Hereinafter, a train tilting apparatus and a tilting train control system having the same will be described in detail with reference to the accompanying drawings.

1 and 2, the tilting train control system 100 according to an embodiment of the present invention, the train 10 to run while maintaining a constant speed without decelerating the running speed during the curved run of the train 10 The train body (11) of the train wheel 13 is to control to be tilted in the left and right direction relative to the lower block 15 is installed.

Here, the train 10 is installed so that the train main body 11 is tilted in the left and right directions on the basis of the left and right directions, that is, the train progress direction on the upper portion of the lower block 15 in which the train wheel 13 is installed. An example will be described. More specifically, as shown in FIG. 1, the train main body 11 and the lower block 15 may be connected to be rotated by a predetermined angle with the hinge portion 17 therebetween. In this case, the hinge portion 17 is located at the center of the train body 11 and the lower block 15 on the basis of the left and right widths D, so that the train main body 11 can be tilted and driven in a right and left balance. It is possible to install.

In addition, the train main body 11 may be an electric vehicle equipped with an engine, a machine, an electric device, or the like, may correspond to a passenger vehicle in which a passenger boards, or, in the case of a freight train, may correspond to a freight car.

To this end, the tilting train control system 100 according to an exemplary embodiment of the present invention includes a track information acquisition unit 110, a traveling speed detector 120, a train tilting device 130, and a tilting angle calculator 140. And a tilting angle detector 150 and a controller 160.

The track information acquisition unit 110 is installed on the periphery of the track 20, that is, on the ground, and transmits the information from the ground information generator 111 and the ground information generator 111 to provide information such as the track 20. The on-vehicle antenna 113 is installed in the train 10 to receive the ground information.

The ground information generating device 111 may be installed at a predetermined division along the track 20 or may be installed at every curved section, and a plurality of ground information generating devices may be installed at each curved section according to the length of the curved section. The ground information generator 111 may include an RFID transmitter, and transmits ground information including previously stored line information.

The on-vehicle antenna 113 is a track from the ground information generator 111 through communication with the ground information generator 111 installed on the ground when the train 10 passes the section in which the ground information generator 111 is installed. Receives the information and delivers it to the controller 160. The onboard antenna 113 may include an RFID receiver.

The traveling speed detecting unit 120 is for detecting the traveling speed when the train 10 runs, and may detect the traveling speed of the train by detecting the rotational speed of the wheels 13 of the train 10, in addition to the Doppler. Alternatively, the driving speed of the train may be detected using a GPS function. That is, the traveling speed detector 120 may correspond to any one of various known methods and means, and the present invention is not limited by the specific examples. As such, the train traveling speed information detected by the traveling speed detecting unit 120 is transmitted to the controller 160.

The tilting angle calculator 140 passes the track to be forwarded based on the curvature information of the track obtained through the track information acquisition unit 110 and the driving speed information of the train 10 detected by the traveling speed detector 120. Calculate the tilt angle of the train corresponding to the curvature of the curve and the traveling speed. Such a tilting angle may be calculated according to a curvature condition of a track, a traveling speed of a train, a type of a train, and the like, and may be stored and provided in the form of a lookup table through experimental values in advance.

Based on the tilting angle of the train calculated by the tilting angle calculator 140, the controller 160 may control the tilting device 130 when the curved section is operated.

The tilting angle detector 150 detects whether the vehicle is traveling while maintaining the tilting angle calculated by the tilting angle calculator 140 when the train 10 actually runs in a curved track section. The tilting angle detection unit 150 may include a tilt sensor or a gyro sensor installed in the train main body 11. That is, by installing the inclination sensor or the gyro sensor in the train main body 11, the train main body 11 can detect the actual inclination of the inclination and change in attitude with respect to the lower block 13 in real time, not the theoretical value Since the measured value can be obtained, the actual train main body 11 controls the tilting device 130 in the controller 160 so that the train main body 11 can be tilted to correspond to the target tilting angle. .

The actual tilt angle detection value of the train detected by the tilt angle detector 150 is provided to the controller 160. Therefore, the controller 160 compares the actual tilting angle (detected value) of the train 10 detected by the tilting angle detector 150 with the theoretical tilting angle (theoretical value), and the actual detected value and the theoretical value are preset errors. If it is determined that the range is out of range, the tilting control of the tilting device 130 is stopped, and the train braking device 180 is controlled to reduce or stop the traveling speed of the train 10. In addition, the controller 160 notifies the engineer of the train of an abnormal occurrence situation of the tilting device 130 through a monitor or a speaker, and the tilting device of the corresponding train to the remote train management center connected to the wireless communication unit 170 and the communication network. By transmitting the abnormality information of the 130, it is possible to immediately take a follow-up action, it is possible to accurately check the train in the future.

The tilting device 130 may include first and second airbags 131 and 132 installed between the train body 11 and the lower block 13 and first and second airbags 131 and 132 respectively. Second tilting guides 133 and 134 and first and second air supply units 135 and 136 are provided.

The first and second airbags 131 and 132 are installed between the train main body 11 and the lower block 13 and are arranged symmetrically with respect to each of the left and right sides based on the traveling direction of the train 10. That is, the first and second airbags 131 and 132 are installed at symmetrical positions on both sides of the train 10 with respect to the hinge 17.

The first and second airbags 131 and 132 may be provided in plural per passenger cars of the train 10, respectively, and are not limited by the number of installations thereof. In addition, each of the first and second airbags 131 and 132 is accommodated in the first and second tilting guides 133 and 134, and is expanded and compressed only in the tilting guides 133 and 134, thereby lowering the train main body 11. It can be moved up and down with respect to (13). The first and second airbags 131 and 132 are expandable by pressurized air supplied from each of the first and second air supply units 135 and 136. For this purpose, a rubber material or a rubber material is used as the main material and a steel wire or a fiber material is formed therein. The resin material may be formed of a material such as a mixed or embedded synthetic rubber material. In addition, a synthetic resin material made of a material excellent in heat resistance and abrasion resistance may be used as the main material, and may be formed of a mixed material including steel wire or glass fiber material or artificial leather or processed fiber.

Preferably, the first and second airbags 131 and 132 have a corrugated configuration, and may have a structure that can be easily expanded and contracted in the vertical direction by inflow and discharge of pressurized air.

The first and second tilting guides 133 and 134 have the same structure. Therefore, when the first tilting guide 133 is described as a representative, as shown in FIG. 2, the housing body 133a and the stopper member 133b are provided.

The housing body 133a has an accommodating part for accommodating the airbag 131, that is, an inner space, and may be fixedly installed at any one of the lower block 15 and the train body 11. In the embodiment of the present invention, the housing main body 133a is fixedly installed on the lower block 15, and is connected to the train main body 11 so as to be movable in the vertical direction.

The stopper member 133b is installed to be bent at an upper portion of the housing body 133a, thereby limiting the amount of expansion when the first and second airbags 131 and 132 are inflated. That is, when the first and second airbags 131 and 132 are inflated to an appropriate level, the vehicle body 11 is lifted up, and when the vehicle body 11 comes in contact with the stopper member 133b, it is no longer lifted up. Accordingly, the first and second airbags 131 and 132 are inflated until the vehicle body 11 is lifted up and touches the stopper member 133b, and the vehicle body 11 is no longer lifted by the stopper member 133b. In this case, since the first and second airbags 131 and 132 can no longer be inflated, the first and second airbags 131 and 132 can be prevented from being inflated excessively and the tilting angle can be limited to an appropriate level.

The stopper member 133b may be coupled to the housing body 133a by a welding method, or may be integrally formed. In addition, the stopper member 133b may have a detachable structure with respect to the housing main body 133a. For example, the stopper member 133b may be installed to be coupled and detached by a fastening member such as a screw.

Meanwhile, in the embodiment of the present invention, the stopper member 133b is coupled to the housing main body 133a and described as an example to interfere with the movement of the vehicle main body 11, but this is merely illustrative, and the switch sensor The first and second airbags 131 and 132 may be separately installed and the first and second airbags 131 and 132 may be stopped by stopping the driving of the first and second air supply units 135 and 136 based on the time when the switch sensor is contacted and switched by the movement of the vehicle body 11. ) Can limit the degree of expansion.

In addition, preferably, a plurality of stopper members 133b are provided as shown in FIG. 3, and each of the stopper members 133b may be symmetrically disposed at four corners of the housing body 131. Therefore, the portions corresponding to the plurality of points of the first and second airbags 131 and 132 may be balanced and limited. That is, by allowing the first and second airbags 131 and 132 to be inflated in a balanced manner and to limit the expansion force uniformly, to prevent damage due to unbalanced expansion and contraction of the airbags 131 and 132, and unbalanced tilting of the train. It can be prevented.

The first and second air supply units 135 and 136 independently supply the pressurized air to the first and second airbags 131 and 132, respectively, and are independently driven and controlled by the controller 160. Each of the first and second air supply units 135 and 136 may include a pressure pump.

In addition, the tilting device 130 may further include pressure gauges 137 and 138 connected to the first and second air bags 131 and 132, respectively, and measuring air pressure in the air bags 131 and 132.

The pressure gauges 137 and 138 measure the internal pressure of each of the first and second airbags 131 and 132, and thus the first and second airbags 131 and 132 by pressurized air supplied from the first and second air supplies 135 and 136. ) Is normally inflated to detect whether a certain level of pressure is maintained. The information measured by the pressure gauges 137 and 138 is transferred to the controller 160.

The control unit 160 controls the overall devices for the operation of the train, in particular in the embodiment of the present invention the tilting device 130 on the basis of the track information and the speed information of the train obtained by the track information acquisition unit 110 ) To control the operation of the train to drive at a certain speed even in the curved section of the track.

In addition, the controller 160 compares the actual tilting angle of the train 10 detected by the tilting angle detector 150 with the theoretical tilting angle to check whether the tilting state is a normal tilting state. ) To stop or decelerate the train operation, and to transmit the abnormality occurrence information of the tilting device 130 to the remote management center through the wireless communication unit 170.

On the other hand, if the detected actual tilting angle is in a normal state, the controller 160 controls the tilting device 130 to be driven at a constant speed without decelerating the speed of the train by controlling the driving of the tilting device 130 normally in the corner section.

The tilting train control system 100 according to the embodiment of the present invention having the above configuration will be described in detail with respect to the tilting train control method.

1 to 4, when the train 10 starts to operate (S10), information about the track 20 is obtained through the track information acquisition unit 110 at a predetermined interval or in a specific section. As a result, information (curvature, curve length, etc.) about the curved line is obtained (S11).

When it is confirmed in step S11 that the train 10 is to enter the curved section, the controller 160 is calculated based on the obtained curved section information and the traveling speed acquired by the traveling speed detector 120. The theoretical tilting angle information is obtained from the tilting angle calculator 140 (S12).

The controller 160 controls the driving of the tilting device 130 based on the obtained theoretical tilting angle information (S13). Therefore, the train 10 may be operated while maintaining a constant speed without reducing the traveling speed of the train 10 in the curve section.

In addition, the pressure gauges 136 and 137 measure the pressure inside the airbags 131 and 132, and transmit the measured pressure values to the controller 160, so that the controller 160 checks whether the airbags 131 and 132 are operating normally ( S14).

In addition, the controller 160 compares the actual tilting angle detected by the tilting angle detector 150 with the theoretical tilting angle and checks whether the tilting state is actually maintained at a normal tilting state (S15).

When it is confirmed that each of the steps (S14, S15) is normal, the control unit 160 controls the tilting device 130 to drive the tilting device until it is confirmed that the passage through the curved section (S16) After passing through the curved section, the driving of the tilting device 130 is terminated.

On the other hand, if it is determined that the abnormal state in at least one of the steps (S14, S15), the controller 160 slows down the train or stops the train (S17). By decelerating or stopping the train as described above, the train tilting device 130 can prevent in advance a safety accident that may occur by tilting the train in an abnormal state.

Further, after decelerating or stopping the train as described above, the controller 160 generates the tilting device abnormality information so that the train driver and the remote train management center can check the abnormality occurrence information of the tilting device of the corresponding train (S18). .

That is, in the step (S18) it can be controlled to inform the engineer of the abnormal state of the train tilting device 130 through the speaker or display unit of the engine room, and also the train to the remote train management center through the wireless communication unit 170 By telling the information about the abnormal state of the train tilting device 130, it can be made to repair and check the train later.

As described above, according to the train tilting device and the tilting train control system according to an exemplary embodiment of the present invention, the train tilting device 130 may be easily installed on the train 10 by a simple configuration, and in a curved section. By controlling the driving of the train tilting device 130, the vehicle can be tilted at a constant speed without deceleration.

In addition, by detecting whether the train tilting device 130 is normal by detecting the state of the train tilting device 130 and the actual tilting angle of the train during the tilting operation of the train, when it is confirmed that the abnormal state of the train tilting device 130 stops the tilting operation. By decelerating or stopping the train or stopping the train, it is possible to prevent a large accident such as derailment or overturning of the train due to abnormal operation of the train tilting device 130 or abnormal operation of the train 10 body, and safety of the train. The operation can be made.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be appreciated by those skilled in the art that numerous changes and modifications of the invention are possible without departing from the spirit and scope of the appended claims.

10. Train 11. Train body
15. Lower block 20. Track
100. Tilting train control system 110. Track information acquisition unit
111. Ground information generator 113. Car antenna
120. Travel speed detector 130. Train tilting device
131,132. 1st, 2nd airbag 133,134 .. 1st, 2nd tilting guide
135,136. 1st, 2nd supply part 137,138 .. Pressure gauge
140. Tilt angle calculator 150. Tilt angle detector
160..Control unit 170..Wireless communication unit
180..Brake

Claims (9)

First and second airbags installed between the lower block supporting the train wheels and the train body installed above the lower block, and symmetrically installed on each of the left and right sides based on the traveling direction of the train and independently expandable and retractable. and;
First and second tilting guides installed between the lower block and the train main body to accommodate the first and second airbags, respectively, and to guide the expansion and contraction of the first and second airbags in the vertical direction. ; And
And a first air supply unit for supplying pressurized air to each of the first and second airbags. The method of claim 1,
Each of the first and second tilting guides,
A housing body having a receiving portion for receiving the first and second airbags, respectively, fixed to one of the lower block and the train body, and connected to the other side so as to be slidable; And
And a stopper member installed on the housing body to limit the amount of expansion when the first and second airbags are inflated. 3. The train tilting apparatus of claim 2, further comprising a plurality of pressure gauges connected to each of the first and second airbags to measure air pressure inside each airbag. The train tilting apparatus according to any one of claims 1 to 3, wherein the train main body is rotatably connected to the lower block. delete delete delete delete delete

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