JP2010173354A - Method for controlling tilting of vehicle body using air spring for railway vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for controlling tilting of a vehicle body using air springs for railway vehicles which prevents wheel load reduction of outer rail side wheels by communicatively connecting the right and left air springs of a truck on one side in the advance direction. <P>SOLUTION: In the method for controlling the tilting of the vehicle body using the air springs for railway vehicles, tilting operation of the entire vehicle body A is carried out by communicatively connecting the right and left air springs 4A and 4B of the truck B1 in the one side in the advance direction of the railway vehicle and then subjecting the communicatively connected air springs 4A and 4B to the tilting operation with moments that receive them as external force; and performing control to raise the height of an outer rail side air spring 4C on the opposite side in the advance direction, thereby to transmit a moment in a rolling direction generated by this control to the truck B1 on the one side as a torsional moment of the vehicle body A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for controlling the inclination of an air spring body for a railway vehicle.

  Conventionally, among the pendulum vehicles in the railway that ensure the riding comfort by tilting the vehicle body to the curve side when traveling along the railway track, the vehicle tilts the vehicle body by controlling the left and right heights of the air springs (the following Patent Document 1, 2) has been developed and is in commercial operation.

  FIG. 4 is a diagram showing a cross-sectional structure of such a conventional air spring vehicle body tilting vehicle, FIG. 5 is a diagram showing a state of the air spring vehicle body tilting during the steady circular curve traveling, and FIG. is there.

  In these drawings, 101 is a track, 102 and 102 'are cants of the track 101, 103 is a rail, 104 is a wheel shaft, 105 is a wheel, 106 is a spring body, 107 is a carriage frame, 108A is an outer-gauge air spring, 108B Is an inner-rail air spring, 109 is a vehicle body, 110A is a front carriage, 110B is a rear carriage, and D is a traveling direction of the railway vehicle.

JP-A-5-238387 JP-A-11-268645

  As shown in FIGS. 4 and 5, the vehicle body tilting operation of the air spring body tilting vehicle is performed by sending compressed air to the outer gauge side air spring 108 </ b> A during curve traveling and raising the height of the outer gauge side air spring 108 </ b> A. ing. Therefore, a railway vehicle having an air spring body tilt function is effective in reducing left and right steady-state acceleration while traveling on a circular curve, and is effective in ensuring the ride comfort.

  On the other hand, on the exit relaxation curve, the air inside the raised outer gauge side air spring 108A is exhausted to return the vehicle body 109 to a horizontal position. Here, the front and rear carriages 110A and 110B have different cants depending on the travel position. As shown in FIG. 6, the rear carriage 110B has a larger cant 102 'and the front carriage 110A has a smaller cant 102. If air is evenly extracted from the outer gauge side air springs 108A of the front and rear carriages in this state, the load support of the vehicle body is borne only by the rear carriage 110B having a large cant, and as a result, the outer gauge side wheels of the front carriage 110A. Cause the loss of wheel load. That is, the action of trying to keep the outer gauge side air springs 108A of the front and rear carriages 110A and 110B at the same height on the exit relaxation curve is an action of actively reducing the outer gauge side wheel load of the front carriage 110A. Become. Reduction of wheel load on the outer track side is a problem that affects running safety from the viewpoint of derailment coefficient. The degree of occurrence of wheel load loss increases as the track shape is severe and the traveling speed is high. In particular, the front wheel of the front carriage 110A generally has the largest generated lateral pressure, and therefore tends to be in a dangerous state due to the derailment coefficient.

  Further, when the air spring body is inclined, a large flow rate air valve is used to supply and discharge a large amount of compressed air from the air spring in a short time. When controlling the height of the air spring using such a large flow rate valve, the tilt angle of the vehicle body is not stable, and roll shaking may occur.

  In view of the above situation, the present invention provides an air spring vehicle body tilt control method for a railway vehicle that can prevent wheel load loss of an outer gauge side wheel by communicating left and right air springs of a carriage on one side in the traveling direction. The purpose is to provide.

In order to achieve the above object, the present invention provides
[1] In the rail car air spring body tilt control method, the left and right air springs of the one-side carriage in the traveling direction of the railway vehicle are communicated, and the communicated air spring is tilted by a moment received by an external force. By performing control to increase the height of the outer gauge side air spring of the carriage opposite to the traveling direction, the moment in the roll direction generated by this control is transmitted to the one-side carriage as a torsional moment of the vehicle body, A tilting operation is performed.

  [2] In the rail car air spring vehicle body tilt control method according to [1], the single spring is equivalently attached to the center of the one-side carriage by the communication of the left and right air springs of the one-side carriage in the traveling direction. The vehicle body load is supported by this spring and the left and right air springs of the carriage opposite to the traveling direction.

  [3] In the control method of a railcar air spring vehicle body inclination according to [1] or [2] above, an orifice is disposed in a pipe in which the left and right communication valves of the communicated left and right air springs are disposed, and the vehicle body roll It functions as a direction damper and suppresses the occurrence of roll fluctuation.

  According to the present invention, in an air spring vehicle body inclined vehicle that travels in a linearly severe line section, it is possible to prevent wheel load loss of an outer gauge side wheel particularly at an exit relaxation curve that moves from a curved portion to a straight portion. be able to.

  Further, by tilting only the one-side carriage, it is possible to contribute to a reduction in air consumption when the vehicle body is tilted.

It is a schematic diagram of the control apparatus of the air spring vehicle body inclination for railway vehicles which shows the Example of this invention. It is a figure which shows the state of the vehicle body inclination by the control apparatus of the air spring vehicle body inclination for railway vehicles which shows the Example of this invention. It is a schematic diagram of the control apparatus of the air spring vehicle body inclination for railway vehicles which shows the other Example of this invention. It is a figure which shows the cross-sectional structure of the conventional air spring vehicle body inclination vehicle. It is a figure which shows the state of the air spring vehicle body inclination in the conventional steady circle curve driving | running | working. It is explanatory drawing of the problem of a prior art.

  The railcar air spring vehicle body tilt control method according to the present invention is such that the left and right air springs of the one-side carriage in the traveling direction of the railway vehicle are communicated, and the communicated air spring is tilted by a moment received by an external force. By performing control to increase the height of the outer gauge side air spring of the carriage opposite to the traveling direction, the moment in the roll direction generated by this control is transmitted to the one-side carriage as a torsional moment of the vehicle body, Tilt operation is performed.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a schematic diagram of a railcar air spring vehicle body tilt control apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing a state in which the left and right air springs communicate with the railcar air spring car body tilt control apparatus. is there.

  In this figure, 1 is a track, 2 is a can of a front bogie of track 1, 3 is a can of a rear bogie of track 1, 4A is a front bogie outer gauge side air spring, 4B is a front bogie inner gauge side air spring, 4C Is a rear carriage outer gauge side air spring, 4D is a rear carriage inner gauge side air spring, and 5 is an air spring control device connected to the front carriage outer gauge side air spring 4A and the front carriage inner gauge side air spring 4B. Reference numeral 6 denotes an air spring control device connected to the rear carriage outer gauge side air spring 4C and the rear carriage inner gauge side air spring 4D, and reference numeral 7 denotes a front carriage outer gauge side air spring 4A connected to the air spring control apparatus 5. The first pipe, 8 is a second pipe that connects the front carriage inner gauge side air spring 4B and the air spring control apparatus 5, and 9 is a rear carriage outer gauge side air spring 4C and the second spring pipe that connects the air spring control apparatus 6. The pipe 3 and 10 are connected to the rear carriage inner air spring 4D and the air spring control device 6 , 11 is a left and right communication valve arranged between the first pipe 7 and the second pipe 8, and 12 is a left and right communication valve arranged between the third pipe 9 and the fourth pipe 10. , 13 is a fifth pipe that connects the left and right communication valve 11 between the first pipe 7 and the second pipe 8, and 14 is a connection between the left and right communication valve 12 between the third pipe 9 and the fourth pipe 10. A sixth pipe connected in between, A is a vehicle body, B1 is a front carriage, B2 is a rear carriage, C is a rail, and D is a traveling direction of the railway vehicle.

  When the railway vehicle is traveling in the direction D, the left and right communication valves 11 are opened to communicate with the air springs 4A and 4B of the front vehicle B1, which is a vehicle on the front side in the traveling direction. Since the air springs 4A and 4B communicated with each other balance at a position where the left and right internal pressures are balanced when compressed air is fed, the air springs 4A and 4B are inclined by a moment received by an external force. In the rear carriage B2 with respect to the traveling direction D, control is performed to raise the height of the outer gauge side air spring 4C as usual. The moment in the roll direction generated by this operation is transmitted to the front carriage B1 as a torsional moment of the vehicle body, and the entire vehicle body A is tilted. When the outer and inner gauge air springs are communicated in this way, the communicated front carriage B1 is equivalently attached to the center of the carriage, as shown in FIG. The vehicle load is supported by a total of three air springs, that is, the spring 4 'and the two air springs 4C and 4D of the rear carriage B2. Accordingly, the plane (vehicle body A floor) is supported at three points, and the vehicle body A can be stably supported.

  In the above-described embodiment, the air spring control devices 5 and 6 connected to the respective air springs are provided. However, the left and right communication valves 11 and 12 are omitted by omitting the air spring control device 5 or 6 on one side. You may make it control only by. Although not shown, a normal leveling system is provided.

  In the present invention, since the vehicle body tilting operation is performed only with the air spring of the one-side carriage (the rear carriage in the traveling direction), there may be a delay in the operation, but this can be dealt with by changing the specifications of the left and right communication valves 5 and 6. Is possible.

  In addition, since a torsional moment is generated in the vehicle body structure during the tilting operation, it is necessary to consider the structure design.

  FIG. 3 is a schematic view of a railcar air spring vehicle body tilt control apparatus according to another embodiment of the present invention.

  In this embodiment, as measures against roll fluctuation, orifices 15 and 16 are provided in the middle of the fifth pipe 13 where the left and right communication valves 11 are arranged and in the middle of the sixth pipe 14 where the left and right communication valves 12 are arranged, respectively. It was made to provide. By generating an appropriate damping force when the compressed air passes through the orifices 15 and 16, it is possible to function as a damper in the vehicle body roll direction and to suppress the occurrence of roll shaking.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The air spring body tilt control method for a railway vehicle according to the present invention allows the rail vehicle traveling on the linear line to be stable to travel stably and ensures the riding comfort of the air spring body tilt of the railway vehicle. It can be used as a control method.

DESCRIPTION OF SYMBOLS 1 Track | truck 2 Can of front trolley 3 Can of back trolley 4A Front trolley outer gauge side air spring 4B Front trolley inner gauge side air spring 4C Rear trolley outer gauge side air spring 4D Rear trolley inner gauge side air spring 4 'Spring 5, 6 Air spring control device 7 1st piping 8 2nd piping 9 3rd piping 10 4th piping 11 and 12 Left and right communication valve 13 5th piping 14 6th piping 15 and 16 Orifice A Car body B1 Front trolley (one trolley)
B2 Rear cart (opposite cart)
C Rail D Railroad direction

Claims (3)

  The left and right air springs of the one-side carriage in the traveling direction of the railway vehicle are communicated and tilted by a moment received by the external force of the communicated air spring, and the height of the outer gauge side air spring of the carriage opposite to the traveling direction of the railway vehicle The air spring vehicle body for a railway vehicle is characterized in that the control means for raising the vehicle body causes the moment in the roll direction generated by the control to be transmitted to the one-side carriage as a torsional moment of the vehicle body to perform the tilting operation of the entire vehicle body. Tilt control method.   In the rail car air spring vehicle body tilt control method according to claim 1, a state in which a single spring is equivalently attached to the center of the one-side carriage by the communication of the left and right air springs of the one-side carriage in the traveling direction, A vehicle body load is supported by the spring and the left and right air springs of the carriage opposite to the traveling direction, and the air spring body tilt control method for a railway vehicle is provided.   3. The method of controlling an air spring body tilt for a railway vehicle according to claim 1 or 2, wherein an orifice is disposed in a pipe in which left and right communication valves of the left and right air springs to be communicated are disposed to function as a damper in the body roll direction. A method for controlling the inclination of an air spring body for a railway vehicle, characterized by suppressing the occurrence of roll fluctuation.

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