JPH1120692A - Operating method for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce track maintenance work of a curved part by eliminating a cant of the curved part on the side of a track and taking an outer track side rail inclined angle of a curved track on a large scale to the side of an inner track. SOLUTION: In the track structure of a curved part, a cant is eliminated, an outer track side rail 19 is inclined, a virtual straight line connecting an outer track side contact end 23 of an outer track side wheel 2 and an outer track side rail 19 and an inner track side contact point 24 of an inner track side wheel 7 and an inner track side rail 20 is made to be parallel to a horizontal plane. In a vehicle at the time of passing a curve, the contact state of the outer track side wheel 2 and the outer track side rail 19 is approximated to the contact state of the inner track side wheel 7 and the inner track side rail 20 and the outer track side wheel 2 is inclined to the inner track side wheel 7. Because of the inclination, the inclination controls of the outer track side wheel 2 and the inner track side wheel 7 are performed by using an outer track side actuator 14 and an inner track side actuator 15 which are mounted on a truck frame 12. Thus, track maintenance work can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bogie and a track structure, and more particularly, to a method of driving a vehicle which makes it easy to pass a curved road.

[0002]

2. Description of the Related Art As a conventional technology relating to a bogie, a steering bogie as a bogie for facilitating a curve passage is known.
A bogie that enables steering by switching the shaft spring stiffness has also been put to practical use. Both have a structure in which the left and right wheels are joined by a wheel set. In recent years, an independent wheel bogie has been known as a low-floor vehicle such as a tram.

[0003] As a conventional technique relating to a track, FIG.
1 shows a conventional vehicle and rail structure. The rail at the straight portion is inclined toward the center at a certain gradient with respect to the horizontal plane at the straight portion. A curve is usually provided with a cant. If you pass or stop slowly on a large curve of Kant,
The ride quality is poor because the body is inclined. Also, in the curved part, the outer rail side cant is realized by embankment, so the outer rail side embankment sinks due to increase in the number of runs,
This has led to an increase in track maintenance work.

[0004]

SUMMARY OF THE INVENTION As shown in the above prior art, it is an object of the present invention to minimize the deterioration of the riding comfort due to the inclination of the vehicle body at a curved portion. On the rail side, the challenge is to reduce the cant. On the vehicle side, another problem is to make the curve passing performance by reducing the cant equivalent to the performance when a conventional wheel is connected with a wheel set.

[0005]

As a means for solving the problems of the present invention, the cantilever of the curved portion is eliminated on the track side, and the rail inclination angle of the outer track side of the curved track is increased toward the inner track side. Thereby, the maintenance work of the curved portion can be reduced. On the vehicle side, a truck having an independent wheel structure is used, and the problem of the prior art can be solved by controlling the inclination of the wheels so as to follow the inclination of the rail at the curved portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a bogie and a track at a curved portion where a curve exists toward the right side of the drawing, showing an embodiment of the present invention.

FIG. 2 is a cross section of the truck and the track at the straight portion in the present invention.

In FIG. 1, a vehicle 1 comprises an outer rail wheel 2, an outer rail axle 3, an outer rail axle support frame 4, an outer rail main motor 5,
Outer rail side main motor support 6, inner rail side wheel 7, inner rail side axle 8, inner rail side axle support frame 9, inner rail side main motor 10, inner rail side main motor support 11, bogie frame 12, air spring 13 , An outer track side actuator 14, an inner track side actuator 15, a bogie frame level 16 and a body level 17.

The track 18 includes an outer rail 19, an inner rail 20, a rail fixing means 11, and a sleeper 22.

The track structure of the curved portion eliminates the cant as shown in FIG.
A virtual straight line connecting the outer rail contact point 23 between the outer rail 19 and the outer rail 19 and the inner rail contact point 24 between the inner rail 7 and the inner rail 20 is made parallel to the horizontal plane. .

The behavior of the vehicle at the time of passing the curve is to approximate the contact state between the outer rail 2 and the outer rail 19 and the contact between the inner rail 7 and the inner rail 20. Then, the outer rail 2 is inclined with respect to the inner rail 7.
As means for inclining, the outer track side wheel 2 and the inner track side wheel 7 are tilted using the outer track side actuator 14 and the inner track side actuator 15 mounted on the bogie frame 12. At this time, since the independent wheels are used, the center direction between the gauges of the outer gauge wheel 2 is lowered, and the bogie frame 12 and the vehicle body 1 are inclined. In order to minimize this inclination, the bogie frame 12 has a bogie frame level 16 and the vehicle body 1 has a body level 17.
Are attached to each other, and the tilt angle information is transmitted to the outer track side actuator 14 and the inner track side actuator 15, and the optimum tilt angle is obtained by performing feedback control.

The outer rail side inclination angle center position 25 is defined as the outer rail side intersection point between the point at which the outer rail side contact point 23 is translated with respect to the outer rail side wheel 2 and the center line of the outer rail side axle 3. . The inner rail side inclination angle center position 26 is, like the outer rail side, the inner rail side contact point 24.
Is the intersection of the center line of the inner rail axle 8 with the point translated in parallel with the inner rail 7. In practice, it is difficult to control the tilt angle center position with the actuator because of the bogie structure. Therefore, the actuator is controlled so that this position becomes the virtual center.

This makes it possible to minimize the inclination of the vehicle body on a curve.

During straight running, the actuator is controlled so as to be in the same state as the conventional bogie section as shown in FIG.

The start and end timings of the wheel tilt control may be controlled by a ground child having a track record in pendulum control or the like.

An operation method in the case where the wheel inclination control has expired will be described.

In case of expiration in the straight section, the left and right wheels are made parallel by mechanical means. That is, the control from the actuator is invalidated, and the left and right wheels are rigidly connected.

[0018] If the lapse occurs after the start of the inclination control, a snake action may occur and the vehicle may derail. Therefore, the vehicle is fixed by mechanical means while maintaining the inclination state, and runs by coasting to a linear portion.
Stop at the straight section, lift the vehicle from the bogie, and put it in a no-load state. The wheels are returned so that the wheels are inclined so that the wheels of the inner and outer gauges are parallel to each other, that is, the wheels of the inner and outer gauges are parallel to each other, and the left and right wheels are rigidly connected to allow continuous operation.

As another embodiment to which this embodiment is applied,
Although an example of a vehicle in which pendulum control is not performed has been described, a conventional pendulum mechanism may be used together.

Further, as another embodiment, the ride comfort at the curved portion can be further improved by the combined control of the automatic height adjusting valve of the air spring and the level of the vehicle body and the bogie.

[0021]

According to the present invention, since the cant is eliminated on the track side, the maintenance work can be reduced. On the vehicle side, the inclination of the vehicle body at the curved portion can be reduced because the vehicle body inclination at the curved portion is minimized.

[Brief description of the drawings]

FIG. 1 shows a behavior of a vehicle at a curved portion and a rail structure according to the present invention, and shows a cut surface cut at an axle center.

FIG. 2 shows a behavior of a vehicle in a straight portion and a rail structure according to the present invention, and shows a cut surface cut at an axle center.

FIG. 3 shows a conventional vehicle and rail structure, and shows a cross section cut at the center of an axle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... vehicle, 2 ... outer track side wheel, 3 ... outer track side axle, 4 ... outer track side axle support frame, 5 ... outer track side main motor, 6 ... outer track side main motor support, 7 ... inner track side wheel , 8 ... inner rail side axle, 9 ... inner rail side axle support frame, 10 ... inner rail side main motor, 11 ... inner rail side main motor support, 12 ... bogie frame, 13 ... air spring, 14 ...
Outer track side actuator, 15 ... Inner track side actuator,
16: bogie frame level, 17: body level, 18: track, 19: outer rail side rail, 20: inner rail side rail, 21 ...
Rail fixing means, 22: sleeper, 23: outer rail side contact point, 2
4 ... Contact point on inner rail side, 25 ... Center position of inclination angle on outer rail side, 26
… Center position of the inner rail side inclination angle.

Claims (4)

[Claims] 1. A method of driving a vehicle, wherein a vehicle bogie and a track easily pass through a curved line. 2. The vehicle operating method according to claim 1, wherein the outer rail on the curved portion is inclined toward the inner rail with respect to the track. 3. The method of driving a vehicle according to claim 1, wherein the wheels are tilt-controlled. 4. The method of driving a vehicle according to claim 1, wherein the inclination of the vehicle body when passing through a curve is minimized.