JP2005289170A - Railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a railroad vehicle increasing the traveling speed thereof on a curved section of a rail without degrading the traveling safety even when the ride quality for passengers is kept as the present one by increasing the angle of pendulum in order to shorten the time to the destination. <P>SOLUTION: The railroad vehicle has a pendulum device to incline a railroad vehicle body, a centroid moving device to move the center of gravity of the railroad vehicle body, and a control device to control the pendulum and the centroid movement of the railroad vehicle body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a railway vehicle, and more particularly, to a railway vehicle provided with a pendulum device and a gravity center moving device.

  In the railway field, efforts are being made to maintain a constant speed while improving the average speed in terms of shortening the time to the destination, improving passenger comfort, and saving labor energy. At this time, when the railway vehicle travels on the curved portion of the rail, a centrifugal force is generated outside the curved portion of the rail. Therefore, in order to cancel this centrifugal force, a difference in height is provided between the inner and outer tracks and the track is called cant. It is tilted.

  However, if the cant is attached too much, that is, the cant amount is too large, the railway vehicle may become too steep when stopping at the curved part of the rail, causing trouble when the passengers get off or on standby, The maximum amount of cant is naturally determined due to problems such as poor ride comfort for passengers when traveling on the curved portion of the rail.

  Therefore, in order to cancel out the centrifugal force that cannot be compensated only by the cant, the railway vehicle is provided with a pendulum device using a pendulum with a roller and a semicircular pendulum beam. There are a natural pendulum device that naturally tilts the body of a railway vehicle by force, and a forced pendulum device that forcibly tilts and controls the pendulum mechanism of the vehicle body of a railway vehicle with a hydraulic or pneumatic cylinder.

  In order to improve the control responsiveness and controllability of the pendulum device of the railway vehicle or improve the ride comfort of the passengers, for example, as shown in Patent Document 1, a control valve is attached to the cylinder body and the pendulum beam is put together. A pendulum device that can be accommodated, or a pendulum device that is hydraulically controlled without a pendulum beam as shown in Patent Document 2, has been proposed.

  In addition, the control of the tilt angle of the pendulum of the vehicle body by these pendulum devices and the control device that controls them has been proposed and put into practical use. For example, as shown in Patent Document 3, the control device predicts the curved portion of the passing rail while comparing the data of the curved portion of the rail with the calculated travel distance in each railcar in the control device. According to the prediction, it has been proposed to control the pendulum device by a pneumatic cylinder or the like so as to incline to the best inclination angle of the pendulum. As a result, the traveling speed of the curved portion of the rail is improved with the aim of shortening the time to the destination, and the passenger comfort is maintained.

Therefore, with the aim of shortening the time to the destination, in order to improve the traveling speed of the railway vehicle, a pendulum device for canceling the centrifugal force that cannot be compensated by the cant generated in the railway vehicle at the curved part of the rail Development and optimization of this control device have been attempted.
JP-A 61-108053 Japanese Patent Laid-Open No. 06-278604 JP 08-268275 A

  However, in a railway vehicle equipped with a pendulum device of the prior art, a centrifugal force that cannot be canceled out by the cant of the rail curve portion and the pendulum device is directly improved by improving the traveling speed of the rail vehicle at the rail curve portion. There is a problem that the ride comfort of passengers deteriorates due to the passengers. For this, the pendulum angle can be increased, but the amount of movement of the center of gravity in the left-right direction increases, and the lateral pressure increases in the outer gauge of the curved portion and the wheel weight decreases in the inner gauge. There is a problem that the safety of the machine is lowered.

  The present invention has been made in view of the above problems, and in order to further shorten the time to the destination, even if the pendulum angle of the vehicle body is increased and the passenger's riding comfort is maintained as it is, the traveling safety is improved. It is an object of the present invention to provide a railway vehicle that can improve the traveling speed of the railway vehicle at the curved portion of the rail without lowering.

  In order to solve the above-described problems, a railway vehicle includes a pendulum device that tilts the vehicle body, a gravity center moving device that moves the center of gravity of the vehicle body, and a control device that controls the pendulum and center of gravity movement of the vehicle body. It is characterized by that.

  According to the first aspect of the present invention, by providing the center-of-gravity moving device, the center of gravity of the vehicle body can be moved to the inside of the curved portion of the rail to reduce the amount of movement of the center of gravity in the left-right direction.

  According to a second aspect of the present invention, in the railway vehicle according to the first aspect, the pendulum device and the gravity center moving device are a return-acting hydraulic pressure capable of introducing liquid or gas into both ends. It has a return-acting hydraulic / pneumatic cylinder that has a cylinder and tilts the vehicle body by expansion and contraction, and a return-acting hydraulic / pneumatic cylinder that can introduce liquid or gas into both ends, and the center of gravity of the vehicle body can be expanded and contracted. A hydraulic / pneumatic circuit including a reciprocating hydraulic / pneumatic cylinder to be moved, a hydraulic / pneumatic control valve, a hydraulic / pneumatic path, a hydraulic / pneumatic pump, and a storage tank is provided.

  According to the second aspect of the present invention, the pendulum device and the gravity center movement of the vehicle body can be easily and integrally controlled by using the pendulum device and the gravity center moving device as a hydraulic / pneumatic device. .

  According to a third aspect of the present invention, in the railway vehicle according to the first aspect, the pendulum device has a return-type hydraulic / pneumatic cylinder capable of introducing and discharging liquid or gas at both ends, and is expanded and contracted. And a hydraulic / pneumatic circuit including a hydraulic / pneumatic pressure control valve, a hydraulic / pneumatic path, and a hydraulic / pneumatic pump. And an electric power device for moving the center of gravity of the vehicle body.

  According to the third aspect of the present invention, the center-of-gravity moving device and the pendulum device are made into separate hydraulic / pneumatic devices and electric power devices, respectively, so that they are not affected by both of them independently. Can control pendulum and center of gravity movement.

  According to a fourth aspect of the present invention, in the railway vehicle according to the second aspect, the one hydraulic / pneumatic control valve is connected to the hydraulic / pneumatic cylinder of the pendulum device via a hydraulic / pneumatic path. The one hydraulic / pneumatic control valve is connected to the hydraulic / pneumatic cylinder of the center-of-gravity moving device via the hydraulic / pneumatic path, and the control device has one hydraulic / pneumatic control valve connected to one of the liquid / pneumatic control valves. The other hydraulic / pneumatic control valve expands / contracts the other hydraulic / pneumatic cylinder in the opposite direction to the expansion / contraction of one hydraulic / pneumatic cylinder.

  According to the fourth aspect of the present invention, the pendulum device and the center-of-gravity moving device are integrated into a hydraulic / pneumatic path, and each of the hydraulic / pneumatic cylinders is controlled by the two hydraulic / pneumatic control valves. Thus, the balance between the center of gravity and the control of the pendulum can be controlled independently to quickly control both the pendulum and the center of gravity, and the balance between the two can be adjusted with good accuracy.

  According to a fifth aspect of the present invention, in the railway vehicle according to the second aspect, the one hydraulic / pneumatic control valve includes the hydraulic / pneumatic cylinder of the pendulum device and the liquid / pneumatic cylinder of the gravity center moving device. A pressure cylinder and a respective hydraulic / pneumatic path connected to each other to control the hydraulic / pneumatic cylinder of the pendulum device and the hydraulic / pneumatic cylinder of the center of gravity moving apparatus; The other hydraulic / pneumatic cylinder is expanded / contracted in the opposite direction to the operation in which one of the hydraulic / pneumatic cylinders is expanded / contracted.

  According to the invention described in claim 5, by controlling both the hydraulic / pneumatic cylinder of the pendulum device and the hydraulic / pneumatic cylinder of the center of gravity moving device with a single hydraulic / pneumatic control valve, It is possible to simplify the hydraulic / pneumatic circuit of the pendulum device and the center-of-gravity moving device, and to quickly control both the pendulum and the center-of-gravity movement and adjust the balance between them.

  According to a sixth aspect of the present invention, in the railway vehicle according to the second aspect, the one hydraulic / pneumatic control valve is connected to one of the hydraulic / pneumatic cylinders via a hydraulic / pneumatic path, One of the hydraulic / pneumatic cylinders is connected to the other hydraulic / pneumatic cylinder via a hydraulic / pneumatic path, and the hydraulic / pneumatic path expands and contracts one of the hydraulic / pneumatic cylinders and simultaneously the other liquid / pneumatic cylinder. The pneumatic cylinder is expanded and contracted in an operation opposite to the operation in which one of the hydraulic and pneumatic cylinders expands and contracts.

  According to the sixth aspect of the present invention, one of the hydraulic / pneumatic cylinders of the pendulum device and the gravity center moving device is controlled by a single hydraulic / pneumatic control valve and connected to the hydraulic / pneumatic control valve. By controlling the other hydraulic / pneumatic cylinder via the one hydraulic / pneumatic cylinder, the hydraulic / pneumatic circuit of the pendulum device and the center of gravity moving device can be simplified and the pendulum and the center of gravity can be moved. Both balances can be adjusted.

  According to a seventh aspect of the present invention, in the railway vehicle according to any one of the second to sixth aspects, the liquid / pneumatic control valve is an electro-hydraulic control valve, and a high-pressure liquid air is provided. A liquid / pneumatic pump that pumps liquid or gas to the hydraulic / pneumatic cylinder via an accumulator that stores pressure and a hydraulic / pneumatic circuit, and a flow rate of the liquid or gas between both ends of the hydraulic / pneumatic cylinder And a control device.

  According to the seventh aspect of the present invention, the electro-hydraulic pressure control valve can accurately control the hydropneumatic cylinder of the pendulum device or the hydropneumatic cylinder of the gravity center moving device. While controlling both the pendulum and the movement of the center of gravity quickly, the balance between the two can be adjusted accurately and satisfactorily.

  According to the first aspect of the present invention, the center of gravity moving device is provided, the lateral pressure is reduced on the outer gauge side due to the centrifugal force generated by moving the center of gravity of the vehicle body to the left and right, and the wheel load is reduced on the inner gauge side. The dropout is reduced and the pendulum can be used without lowering the height of the pendulum center of the car body, so that the ride comfort of passengers is not worse than the current situation, and the safety of driving is not reduced, In order to shorten the time to the destination, there is an effect that the traveling speed of the railway vehicle at the curved portion of the rail can be improved.

  According to the invention of claim 2, the pendulum device and the gravity center moving device can be integrally formed into a hydraulic / pneumatic circuit, and the vehicle body can be stably and easily adjusted to move the pendulum and the gravity center. The effect that the traveling speed of the railway vehicle at the curved part of the rail can be improved in order to shorten the time to the destination without increasing the tilt angle of the pendulum and making the ride comfort of the passenger worse than the current situation. Play.

  According to the third aspect of the present invention, the center of gravity moving device is electrically driven independently of the hydraulic / pneumatic circuit of the pendulum device, and the pendulum and the center of gravity are controlled independently, thereby Since the pendulum and the center of gravity movement can be adjusted stably and easily, the curve of the rail to shorten the time to the destination without increasing the tilt angle of the pendulum and making the passenger ride comfort worse than the current situation There is an effect that it is possible to improve the traveling speed of the railway vehicle in the section.

  According to the fourth aspect of the present invention, since the respective hydraulic / pneumatic cylinders of the pendulum device and the centroid moving device can be controlled by the respective hydraulic / pneumatic control valves, the pendulum and the centroid movement are adjusted best. It is possible to increase the traveling speed of the rail vehicle at the curved part of the rail in order to shorten the time to the destination without increasing the tilt angle of the pendulum and making the ride comfort of the passenger worse than the current situation There is an effect.

  According to the fifth aspect of the present invention, since the hydraulic / pneumatic cylinders of the pendulum device and the gravity center moving device can be controlled by a single hydraulic / pneumatic control valve, the pendulum and the gravity center movement can be easily adjusted. It is possible to improve the traveling speed of the railway vehicle at the curved part of the rail in order to shorten the time to the destination without increasing the tilt angle of the pendulum and making the passenger's ride comfort worse than the current situation There is an effect.

  According to the sixth aspect of the present invention, since the hydraulic / pneumatic cylinders of the pendulum device and the gravity center moving device can be controlled by a single hydraulic / pneumatic control valve, the pendulum and the gravity center movement can be easily adjusted. It is possible to improve the traveling speed of the railway vehicle at the curved part of the rail in order to shorten the time to the destination without increasing the tilt angle of the pendulum and making the passenger's ride comfort worse than the current situation There is an effect.

  According to the seventh aspect of the invention, by using the electro-hydraulic control valve, the hydraulic / pneumatic cylinders of the pendulum device and the center-of-gravity moving device can be accurately controlled. It can be adjusted to increase the speed of the rail car on the rail curve to shorten the time to the destination without increasing the tilt angle of the pendulum and making the passenger ride less worse than the current situation There is an effect that can be.

  Hereinafter, an embodiment of a railway vehicle according to the present invention will be described with reference to FIGS. However, the invention is not limited to the illustrated example.

<First Embodiment>
1 and 2 are longitudinal sectional views showing the railway vehicle 1. As shown in FIG. 1, a pendulum type railcar 1 is provided with a center-of-gravity moving bogie frame 8 that travels on a rail and supports a vehicle body 2.

  A plurality of wheels 11,... For traveling on rails are disposed on the center-of-gravity moving carriage frame 8, and the left and right wheels 11, 11 are connected by an axle 10. Axial springs 9 and 9 are disposed above the wheels 11 and 11, and the axial springs 9 and 9 support the center-of-gravity moving carriage frame 8 in a state where vibration of the axle 10 is reduced.

  Above the center-of-gravity moving carriage frame 8, center-of-gravity moving roller devices 7, 7 are disposed. Above these center-of-gravity moving roller devices 7, 7, the pendulum carriage frame 6 is placed. The pendulum roller devices 5 and 5 are disposed on the upper part of the pendulum carriage frame 6, and a substantially semicircular pendulum beam 4 faces the curved portion downward on the upper part of the pendulum roller devices 5 and 5. It is placed. On the upper surface of the pendulum beam 4, pillow springs 3 and 3 that support the vehicle 2 and reduce the vibration of the pendulum beam 4 are disposed.

  Between the pendulum carriage frame 6 and the pendulum beam 4, a hydraulic cylinder 13 of the pendulum device 12 is connected and disposed. The hydraulic cylinder 13 includes a cylindrical cylinder body 14, a rod 15, a piston 16, and a connecting member 17. The tip of the rod 15 of the hydraulic cylinder 13 extends in the axial direction of the cylinder body 14, protrudes from the side surface 22 of the cylinder body 14, and is connected to the pendulum carriage frame 6. Further, the base end portion of the rod 15 is fixed to a piston 16 that is disposed so as to slide along the inside of the cylinder body 14 by hydraulic oil introduced into and extracted from the inside of the cylinder body 14. On the other hand, the side surface 21 of the cylinder body 14 is connected to the pendulum beam 4 via the connecting member 17.

  A hydraulic cylinder 26 of the gravity center moving device 25 is connected and disposed between the pendulum carriage frame 6 and the gravity center moving carriage frame 8. The hydraulic cylinder 26 includes a cylindrical cylinder body 27, a rod 28, a piston 29, and a connecting member 30. The tip of the rod 28 of the hydraulic cylinder 26 extends in the axial direction of the cylinder body 27, protrudes from the side surface 35 of the cylinder body 27, and is connected to the center-of-gravity moving carriage frame 8. Further, the base end portion of the rod 28 is fixed to a piston 29 that is arranged to slide along the inside of the cylinder body 27 by hydraulic oil introduced into and extracted from the inside of the cylinder body 27. On the other hand, the side surface 34 of the cylinder body 27 is connected to the pendulum carriage frame 6 via the connecting member 30.

  FIG. 3 is a schematic diagram of the hydraulic circuit 38 of the railway vehicle 1. As shown in FIG. 3, the pendulum device 12 for tilting the vehicle body and the gravity center moving device 25 for moving the center of gravity of the vehicle body constitute a hydraulic circuit 38, and the hydraulic circuit 38 includes the hydraulic cylinder 13 and the pendulum device 12. The hydraulic control valve 18, the hydraulic cylinder 26 and the hydraulic control valve 31 of the center-of-gravity moving device 25, a pump 36, an oil tank 37 that stores hydraulic oil, and hydraulic paths that connect them.

  At both ends of the hydraulic cylinder 13, an inlet / outlet through which hydraulic oil is introduced into and out of the cylinder main body 13 through the hydraulic path 20 and the hydraulic path 19 by the hydraulic control valve 18 is provided. A hydraulic path 19 is connected to an inlet / outlet in the direction of the side surface 21 of the hydraulic cylinder 13, and a hydraulic path 20 is connected to an inlet / outlet in the direction of the side surface 22.

  At both ends of the hydraulic cylinder 26, there are respectively provided inlets and outlets through which hydraulic oil is introduced into and out of the cylinder body 27 by the hydraulic control valve 31 via the hydraulic path 32 and the hydraulic path 33. A hydraulic path 32 is connected to an inlet / outlet in the direction of the side surface 34 of the hydraulic cylinder 26, and a hydraulic path 33 is connected to an inlet / outlet in the direction of the side surface 35.

  The hydraulic circuit 38 may be provided with hydraulic cylinders having different capacities of the hydraulic cylinder 13 and the hydraulic cylinder 26. Thereby, the inclination of the vehicle body can be adjusted by adjusting the pendulum of the pendulum beam 4 of the pendulum device 12 and the left and right center of gravity movement of the center of gravity moving carriage frame 8 of the center of gravity moving device 25.

  A single rod cylinder is disposed in the hydraulic cylinder of the return cylinder of the hydraulic circuit 38. In addition, a double rod cylinder, a telescope cylinder, and a multi-position cylinder are mentioned. Further, the hydraulic oil inlet / outlet may be a single-acting cylinder. In this case, the single-acting cylinder is extended by, for example, hydraulic pressure, or contracted by an external force generated by driving the weight of the vehicle body or an electric motor.

  The hydraulic control valve 18 and the hydraulic control valve 31 of the hydraulic circuit 38 are provided with a 3-port switching valve or a 4-port switching valve. These switching valves are controlled by the control device 40 to adjust the introduction / extraction of the hydraulic oil into the hydraulic cylinder 13 or the like.

  The hydraulic pump 36 is provided with a pump that can cause hydraulic oil to be pumped to the hydraulic cylinder 13 and the hydraulic cylinder 26 through a hydraulic path. Examples of types include gear pumps, vane pumps, screw pumps, axial piston pumps, radical piston pumps, and reciprocating piston pumps.

  The hydraulic oil only needs to be a liquid that has a small compressibility and an excellent reaction rate and frequency response characteristics. In addition to the oil, for example, a mixed liquid of water and glycol may be used.

  A filter may be disposed in the hydraulic circuit 38 in order to satisfactorily remove solid particles mixed in the hydraulic circuit. This filter uses filter paper, wire mesh, winding, sintered metal, etc. as a filter medium, but does not cause a failure in the hydraulic system except for solid particles such as dust and abrasion powder mixed or generated in the hydraulic path If so, good.

  The pendulum roller device 5 exemplifies a roller type, but any device that can tilt the vehicle body 2 may be used. For example, a pendulum beam for supporting a vehicle body as shown in Patent Document 2 can be saved. It may be hydraulic.

  As shown in FIG. 4, the mechanism for controlling the tilt angle of the pendulum of the vehicle body of the pendulum device and the center of gravity moving device includes a pendulum device 12, a center of gravity moving device 25, a target value calculation device 41, and a control device 40. . The control device 40 is connected to the pendulum device 12, the center-of-gravity movement device 25, and the target value calculation device 41. The target value calculation device 41 is the state of the rails in the untraveled section where the railway vehicle 1 should travel after a predetermined time has elapsed. Is obtained from the database, and is input in advance so as to determine the target value of the tilt angle of the pendulum in advance. The control device 40 controls the hydraulic control valve 18 and the gravity center moving device of the pendulum device 12 to adjust the left and right gravity center movement of the vehicle body and the tilt angle of the pendulum of the vehicle body based on various data obtained from the target value calculation device 41. It is configured to control the operation of a hydraulic oil switching valve (not shown) of the 25 hydraulic control valves 31 and the hydraulic pump 36.

  Below, the effect | action of this embodiment of the rail vehicle 1 concerning this invention is demonstrated.

  The railway vehicle 1 transmits the target value of the tilt angle of the pendulum determined from the target value calculation device 41 based on the shape of the untraveled track to the control device 40, and the control device 40 determines from the determined optimal tilt angle of the pendulum. Then, the movement distance of the center of gravity position of the left and right of the vehicle body by the gravity center moving device 25 and the inclination angle of the pendulum of the vehicle body by the pendulum device 14 are calculated. Based on the calculated data, the control device 40 operates the hydraulic pump 36 to pressure-feed hydraulic oil to each hydraulic path. The control device 40 controls the switching valve of the hydraulic control valve 31 to introduce hydraulic oil into the cylinder body 27 from the hydraulic path 32 or the hydraulic path 33 and to move the piston 29 backward to expand and contract the hydraulic cylinder 13. Hydraulic oil is led out from the other hydraulic path. As a result, the pendulum carriage frame 6 and the center-of-gravity movement carriage frame 8 are moved to the left and right by the distance L so that the position of the center of gravity of the vehicle body of the target value is reached. On the other hand, the control device 40 adjusts the movement of the position of the center of gravity of the vehicle body and simultaneously controls the switching valve of the hydraulic control valve 18 to introduce hydraulic oil into the cylinder body 14 from the hydraulic path 19 or 20, thereby 16 is moved backward to expand and contract the hydraulic cylinder 26, and hydraulic fluid is derived from the other. As a result, the pendulum beam 4 and the pendulum carriage frame 6 are moved by the pendulum so that the tilt angle of the pendulum of the vehicle body of the target value is obtained. The derived hydraulic oil is stored in the storage tank 37. Therefore, the railway vehicle 1 is adjusted to the calculated position of the center of gravity movement of the target value and the tilt angle of the pendulum.

  As described above, the railcar 1 includes the center-of-gravity moving device 25, whereby the lateral pressure of the outer gauge due to the centrifugal force caused by the left and right center-of-gravity movement and the reduction of wheel load loss of the inner gauge can be reduced. While maintaining the ride comfort of the passenger at the time, the traveling speed can be improved and the time to the destination can be shortened.

  In order to keep the pressure of the hydraulic circuit 38 constant, a relief valve by a spring force may be arranged in the hydraulic path. Also, a variable throttle flow control valve controlled by the control device 40 may be provided in the hydraulic circuit 38 in order to control the flow rate of the hydraulic oil. In particular, the flow control valve is preferably disposed in the middle of the hydraulic paths 19 and 20 in order to slide the hydraulic cylinder better.

  Also, the hydraulic path 38 has an accumulator added to accumulate pressure energy in the case of rapid start-up and intermittent press operation to absorb the surge and pulsation when the hydraulic pump is downsized or when the valve is suddenly closed. Also good. Examples of the type of accumulator include a spring type, a weight type, and a pneumatic type.

  In the present embodiment, the hydraulic circuit 38 is used. However, in the path shown in FIG. 3, a pneumatic cylinder that can be controlled by pneumatic pressure, a pneumatic switching device, and a gravity center moving device including a pneumatic circuit are arranged. May be. Further, instead of the hydraulic pump 36 and the storage tank 37, a compressor of vane type, screw type, piston type or the like and a storage tank for the compressed gas are provided.

<Second Embodiment>
A second embodiment of the present invention will be described with reference to FIG. The configuration, operation, and effects different from those of the first embodiment will be described. The hydraulic circuit is a modified hydraulic circuit 38 of the first embodiment except for the hydraulic control valve 18.

  As shown in FIG. 5, in the second embodiment, the pendulum device 12 and the gravity center moving device 25 are provided with a hydraulic circuit 42. In this hydraulic circuit 42, at both ends of the hydraulic cylinder 43, a hydraulic path 48 and a hydraulic path 49 newly connected to the hydraulic cylinder 13 in addition to the hydraulic path 32 and the hydraulic path 33 connected to the hydraulic control valve 31. Is arranged. The hydraulic path 49 is disposed at an inlet / outlet through which hydraulic oil is introduced / extracted in the direction of the side surface 51 of the hydraulic cylinder 43 and an inlet / outlet through which hydraulic oil is introduced / extracted in the direction of the side surface 21 of the hydraulic cylinder 13. Further, the hydraulic path 48 is disposed at an inlet / outlet through which hydraulic oil is introduced / extracted in the direction of the side surface 50 of the hydraulic cylinder 43 and an inlet / outlet through which hydraulic oil is introduced / extracted in the direction of the side surface 22 of the hydraulic cylinder 13. The derived hydraulic oil is stored in the storage tank 37 through the hydraulic path.

  The control device 51 (not shown) adjusts the pendulum device 12 and the center of gravity in order to adjust the lateral movement of the center of gravity of the vehicle body and the tilt angle of the pendulum of the vehicle body based on various data obtained from the target value calculation device 41. A hydraulic oil switching valve (not shown) of the hydraulic control valve 31 of the moving device 25 and the hydraulic pump 36 are controlled.

  Next, the operation of the railway vehicle 52 including the hydraulic path 42 of the pendulum device 12 and the gravity center moving device 25 according to the present embodiment will be described with reference to FIGS. 1, 2, and 5.

  Based on the data calculated in the same manner as in the first embodiment of the present invention, the control device 51 operates the hydraulic pump 36 to pump hydraulic oil to each hydraulic path. The control device 51 controls the switching valve of the hydraulic control valve 31 to introduce hydraulic oil into the cylinder body 44 from the hydraulic path 32 or the hydraulic path 33, and to move the piston 46 backward to expand and contract the hydraulic cylinder 43. Let As a result, the pendulum carriage frame 6 and the center-of-gravity moving carriage frame 8 are moved to the left and right so that the position of the center of gravity of the vehicle body of the target value is reached. The hydraulic oil derived by the expansion and contraction of the piston 46 causes the hydraulic oil to be introduced into the cylinder body 14 via the hydraulic path 48 or the hydraulic path 49, and the piston 16 is moved backward to expand and contract the hydraulic cylinder 13. . As a result, the pendulum beam 4 and the pendulum carriage frame 6 are moved by the pendulum so that the tilt angle of the pendulum of the vehicle body of the target value is obtained. The derived hydraulic oil is stored in the storage tank 37. Thus, the railcar 52 is adjusted to the position of the center of gravity movement of the target value calculated by the pendulum device 12 and the center of gravity moving device 25 and the tilt angle of the pendulum.

<Third embodiment>
A third embodiment of the present invention will be described with reference to FIGS. 1 to 4 and FIG. The configuration, operation, and effects different from those of the first embodiment will be described. The hydraulic circuit is a modified hydraulic circuit 38 of the first embodiment except for the hydraulic control valve 18.

  As shown in FIG. 6, in the third embodiment, the pendulum device 12 and the gravity center moving device 25 are provided with a hydraulic circuit 55. In addition to the hydraulic path 19 and the hydraulic path 20 connected to the hydraulic cylinder 13, a hydraulic path 57 and a hydraulic path 58 connected to the hydraulic cylinder 26 are connected to both ends of the hydraulic control valve 56 of the hydraulic circuit 55. ing. The hydraulic path 57 and the hydraulic path 58 are connected to the hydraulic control valve 56 so that the backward movement of the piston 16 of the hydraulic cylinder 13 and the backward movement of the piston 29 of the hydraulic cylinder 26 are reversed. ing.

  The control device 59 (not shown) controls the pendulum device 12 and the center of gravity moving device to adjust the left and right center of gravity movement of the vehicle body and the tilt angle of the pendulum of the vehicle body based on various data obtained from the target value calculation device 9. The hydraulic control valve 56 is configured to control the hydraulic oil switching valve (not shown) and the hydraulic pump 36.

  Next, the operation of the railway vehicle 60 including the hydraulic circuit 55 of the pendulum device 12 and the gravity center moving device 25 according to the present embodiment will be described.

  Based on the data calculated in the same manner as in the first embodiment of the present invention, the control device 59 operates the hydraulic pump 36 to pressure-feed hydraulic oil to each hydraulic path. The control device 59 controls the switching valve of the hydraulic control valve 56 so that hydraulic oil is introduced into the cylinder body 13 from the hydraulic path 19 and moves the piston 16 backward to extend the hydraulic cylinder 13. The hydraulic oil is introduced into the cylinder body 27 from the hydraulic path 57, and the piston 29 is moved backward to contract the hydraulic cylinder. Alternatively, hydraulic oil is introduced into the cylinder body 12 from the hydraulic path 20, the piston 16 is moved backward to contract the hydraulic cylinder 13, and at the same time, the hydraulic oil is introduced into the cylinder body 27 from the hydraulic path 58, The piston 29 is moved backward to extend the hydraulic cylinder 26. As a result, the pendulum carriage frame 6 and the center-of-gravity movement carriage frame 8 are moved to the left and right so that the position of the center of gravity of the vehicle body of the target value is reached, and at the same time, the pendulum beam is adjusted to the inclination angle of the pendulum angle of the body of the target value. 4 and the pendulum bogie frame 6 are moved by the pendulum. The derived hydraulic oil is stored in the storage tank 37. Therefore, the railway vehicle 1 is adjusted to the calculated position of the center of gravity movement of the target value and the tilt angle of the pendulum. As a result, the railway vehicle 60 is adjusted to the position of the center of gravity of the calculated target value and the tilt angle of the pendulum.

<Fourth embodiment>
A fourth embodiment of the present invention will be described. The configuration, operation, and effects different from those of the first embodiment will be described. In addition, it is the hydraulic circuit which changed the hydraulic control valve of 1st to 3rd embodiment.

  The pendulum device 12 and the gravity center moving device 25 are provided with a hydraulic circuit 62 (not shown). The hydraulic circuit 61 includes an electro-hydraulic pressure such as an electromagnetic valve, a servo valve, or a proportional control valve. A control valve 62 is provided. In this electro-hydraulic control valve, an electro-hydraulic control mechanism using a servo valve and a control device that can control large addition at high speed and accurately with a compact device is particularly preferable.

  The control device 63 (not shown) has a pendulum device 12 and a gravity center moving device for adjusting the left and right center of gravity movement of the vehicle body and the tilt angle of the pendulum of the vehicle body based on various data obtained from the target value calculation device 9. The hydraulic oil switching valve (not shown) and the hydraulic pump 36 of the 25 electro-hydraulic pressure control valves 62 are controlled.

Next, the operation of the railway vehicle 64 including the hydraulic circuit 61 of the pendulum device 12 and the gravity center moving device 25 of the present embodiment will be described.
The control device 63 controls the electro-hydraulic pressure control valve 62 disposed in the hydraulic circuit 61. By adjusting the expansion and contraction of the hydraulic cylinder of the pendulum device 12 and the hydraulic cylinder of the center of gravity moving device 25 by the control valve of the controlled electro-hydraulic pressure control valve 62, the railcar 64 can obtain the center of gravity of the calculated target value. And the tilt angle of the pendulum.

<Fifth embodiment>
A fifth embodiment of the present invention will be described. The configuration, operation, and effects different from those of the first embodiment will be described. In addition, the gravity center moving apparatus 25 of 1st embodiment is changed.

The pendulum device 12 is provided with a hydraulic circuit 66 (not shown). The hydraulic circuit 66 is provided with a hydraulic cylinder 13, a hydraulic control valve 18, a pump 36, and the like. One center of gravity moving device 25 is provided with rails and the like that can be moved left and right to move the center of gravity on the lower surface of the pendulum carriage frame 6 and the upper surface of the center of gravity moving carriage frame 8. An electric power device 67 of the drive motor to be moved is arranged on the upper surface of the center-of-gravity moving carriage frame 8.
Examples of the electric motor 67 that moves the center of gravity of the vehicle body with an electric motor include a roller device that can be moved by electric motor, a cam device such as an eccentric cam, and a rack and pinion device.

  The control device 69 (not shown) controls the hydraulic oil of the pendulum device 65 in order to adjust the left and right gravity center movement of the vehicle body and the tilt angle of the pendulum of the vehicle body based on various data obtained from the target value calculation device 9. A switching valve (not shown), the hydraulic pump 36 and the roller device 68 of the gravity center moving device 67 are controlled.

  Next, the operation of the railway vehicle 70 including the hydraulic circuit 66 of the pendulum device 12 and the electric power device 67 of the gravity center moving device 25 according to the present embodiment will be described.

  Based on data calculated in the same manner as in the first embodiment of the present invention, the control device 69 moves the center of gravity by moving the center of gravity moving carriage frame 8 to the left and right by the electric motor of the electric power device 67 of the center of gravity moving device 25. . At the same time, the control device 69 operates the hydraulic pump 36 of the hydraulic circuit 66 to pressure-feed hydraulic oil to each hydraulic path. Further, by controlling the switching valve of the hydraulic control valve 18, hydraulic oil is introduced into the hydraulic cylinder 14 from the hydraulic path 19 or 20, the piston 16 is moved backward, the hydraulic cylinder 26 is expanded and contracted, and the other is operated from the other. Deriving oil. As a result, the pendulum beam 4 and the pendulum carriage frame 6 are moved by the pendulum so as to have the pendulum angle of the vehicle body. Therefore, the railway vehicle 70 is adjusted to the position of the center of gravity of the calculated target value and the tilt angle of the pendulum.

1 is a longitudinal sectional view showing a railway vehicle 1 including a pendulum device and a gravity center moving device according to the present invention. It is a longitudinal cross-sectional view which shows a railroad vehicle provided with the pendulum apparatus at the time of driving | running | working of the curved part of a rail by this invention, and a gravity center moving apparatus. It is the schematic which shows the hydraulic circuit which adjusts each hydraulic / pneumatic cylinder by two hydraulic / pneumatic control valves in the pendulum apparatus and the gravity center moving apparatus of a railway vehicle by this invention. It is a block diagram which shows control with the pendulum apparatus by this invention, and a gravity center moving apparatus. According to the pendulum device and the gravity center moving device of a railway vehicle according to the present invention, by adjusting one hydraulic / pneumatic cylinder connected by a single hydraulic / pneumatic control valve, the hydraulic / pneumatic cylinder connected to one is adjusted. It is the schematic which shows the hydraulic circuit to adjust. FIG. 3 is a schematic diagram showing a hydraulic circuit that adjusts both hydraulic / pneumatic cylinders by a single hydraulic / pneumatic control valve in the pendulum device and the center-of-gravity moving device of the railway vehicle according to the present invention.

Explanation of symbols

6 Pendulum carriage frame 8 Center of gravity moving carriage frame 12 Pendulum device 25 Center of gravity moving devices 18, 31, 56 Hydraulic control valves 38, 42, 55 Hydraulic circuit

Claims (7)

A pendulum device for tilting the vehicle body;
A center of gravity moving device that moves the center of gravity of the vehicle body;
A railway vehicle comprising: a pendulum of a vehicle body; and a control device that controls movement of the center of gravity. In the railway vehicle according to claim 1,
The pendulum device and the gravity center moving device are:
A return-type hydraulic / pneumatic cylinder that has a return-type hydraulic / pneumatic cylinder capable of introducing and discharging liquid or gas at both ends, and tilts the vehicle body by expansion and contraction; and
A return-type hydraulic / pneumatic cylinder that has a return-type hydraulic / pneumatic cylinder capable of introducing and discharging liquid or gas at both ends,
A railway vehicle comprising a hydraulic / pneumatic circuit including a hydraulic / pneumatic control valve, a hydraulic / pneumatic path, a hydraulic / pneumatic pump, and a storage tank. In the railway vehicle according to claim 1,
The pendulum device has a return-type hydraulic / pneumatic cylinder capable of introducing liquid or gas into both ends, and a return-type hydraulic / pneumatic cylinder that tilts the vehicle body by expansion and contraction;
A hydraulic / pneumatic circuit comprising a hydraulic / pneumatic control valve, a hydraulic / pneumatic path, and a hydraulic / pneumatic pump is provided.
The center of gravity moving device includes an electric power device that moves the center of gravity of a vehicle body by an electric motor. In the railway vehicle according to claim 2,
A single hydraulic / pneumatic control valve is connected to the hydraulic / pneumatic cylinder of the pendulum device via a hydraulic / pneumatic path;
The one hydraulic / pneumatic control valve is connected to the hydraulic / pneumatic cylinder of the gravity center moving device via a hydraulic / pneumatic path,
In the control device, one hydraulic / pneumatic control valve expands / contracts one hydraulic / pneumatic cylinder, and at the same time, the other hydraulic / pneumatic control valve moves the other hydraulic / pneumatic cylinder to one hydraulic / pneumatic cylinder. A railway vehicle characterized in that it is expanded and contracted in the opposite direction to the expanding and contracting operation. In the railway vehicle according to claim 2,
The one hydraulic / pneumatic control valve is connected to the hydraulic / pneumatic cylinder of the pendulum device and the hydraulic / pneumatic cylinder of the center of gravity moving device via the hydraulic / pneumatic paths, respectively. Controlling the hydraulic / pneumatic cylinder and the hydraulic / pneumatic cylinder of the center of gravity movement device;
The hydraulic / pneumatic path extends and contracts one of the hydraulic / pneumatic cylinders, and at the same time, expands / contracts the other hydraulic / pneumatic cylinder to an operation opposite to the operation of expanding / contracting the one hydraulic / pneumatic cylinder. Railway vehicle to be. In the railway vehicle according to claim 2,
The one hydraulic / pneumatic control valve is connected to one of the hydraulic / pneumatic cylinders via a hydraulic / pneumatic path,
One of the hydraulic / pneumatic cylinders is connected to the other hydraulic / pneumatic cylinder via a hydraulic / pneumatic path,
The hydraulic / pneumatic path extends and contracts one of the hydraulic / pneumatic cylinders, and at the same time, expands / contracts the other hydraulic / pneumatic cylinder to an operation opposite to the operation of expanding / contracting the one hydraulic / pneumatic cylinder. Railway vehicle. In the railway vehicle according to any one of claims 2 to 6,
The liquid / air pressure control valve is an electro-hydraulic pressure control valve,
An accumulator that accommodates high-pressure liquid-air pressure;
A hydraulic / pneumatic pump for pumping liquid or gas to the hydraulic / pneumatic cylinder;
And a control device for controlling a flow rate of liquid or gas between both ends of the hydraulic / pneumatic cylinder.

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