JP2001287642A - Body inclination controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve safety and reliability and also to suppress deterioration of comfortableness in regard to conventional failsafe. SOLUTION: This controller is provided with position detectors 11 provided in each rolling stock of a train formation, air supply valves 15 and exhaust valves 16 operating air springs 3 provided in each rolling stock of the formation on the basis of signals inputted by a position detecting device 12 and a speed detector 13 mounted on one of the rolling stocks of the formation and a signal outputted from a controller 14, emergency block valves 19 interposed in air pipings 18 between both of these valves and the air springs 3, and the controller 14 outputting a signal to transfer valves 22 interposed in air pipings 21 reaching between the air supply valves 15 and the exhaust valves 16 from automatic level controlling valves 20 and main air reservoirs 21. When a body inclination anomaly is detected on the basis of the signals, the controller 14 closes the emergency block valves 19 and opens the transfer valves 22. By this, improvement of reliability of the controller, securement of traveling safety, and suppression of comfortableness deterioration during a failure is achieved in regard to conventional fail-safing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body inclination control device using an air spring.

[0002]

2. Description of the Related Art In a railway vehicle, riding comfort may be deteriorated due to excessive centrifugal force when passing through a curved road. In particular, when the speed at the time of passing through a curved road is high, the excess centrifugal force is increased, and the riding comfort is further deteriorated. Therefore, various types of lean control of the vehicle body have been developed in order to suppress the excessive centrifugal force by tilting the vehicle body when passing on a curved road to prevent deterioration of ride comfort.

[0005] For example, FIG. 5 is a diagram showing an example of a vehicle body inclination control device using an air spring. The vehicle body inclination control device includes left and right air springs 3 and an air reservoir 4 disposed between a vehicle body 1 and a bogie 2. A supply valve 5 and an exhaust valve 6 are interposed in the middle of a pipe communicating with the valve, and the ON / OFF of the supply valve 5 and the exhaust valve 6 is performed by a signal of a controller 7, and abnormal acceleration is detected. The exhaust valve 6 and the separately provided emergency exhaust valve 9 can be operated by a check circuit 8 including a meter, a logic circuit, a fuse, an emergency button, and the like.

If the controller 7 or the like malfunctions and the vehicle body inclination control device malfunctions, the check circuit 8 opens the exhaust valve 6 to exhaust the air spring 3 and contract the air spring 3 to stop the vehicle body 1 with a stopper. Fail-safe operation is achieved by supporting the support at 10.

However, in the vehicle body inclination control device as shown in FIG. 5, the check circuit 8 is required for each of the vehicle bodies 1 in the train, so that the cost is high and the reliability is expensive. In view of this, Japanese Patent Publication No. 62-35942 discloses that the output of a traveling speed detector and a curve information receiver is input, and a tilting instruction is given to a control device that operates a pillow spring or a fluid operating mechanism provided in parallel with the pillow spring. A computer capable of detecting and taking in the inclination angle of each vehicle body or an amount corresponding to the inclination into a computer which provides the above, and constructing a feedback loop in the computer and simultaneously detecting an abnormality to realize a fail-safe vehicle body inclination control. A tilt control device is proposed.

The vehicle body inclination control device proposed in Japanese Patent Publication No. 62-35942 has a control system suitable for a control system for giving a tilt instruction to each bogie at the leading vehicle, and is less expensive than the conventional one. It is said that safety is high.

[0007]

However, not only the above-mentioned conventional vehicle body tilt control device but also Japanese Patent Publication No.
Even the vehicle body tilt control device proposed in Japanese Patent No. 2-35942 has the following disadvantages.

Regarding Safety When an abnormality occurs, particularly when the vehicle body is in an inclined state, it is necessary to return the vehicle immediately. Therefore, in the event of an abnormality, the conventional body tilt control device operates the emergency exhaust valve to rapidly diffuse the air in the air spring to the atmosphere and support the vehicle body with a stopper, or shut off the supply source of the fluid operating mechanism By operating the control valve, the malfunction of the vehicle body is prevented.

[0009] However, in the former method, although the inclination of the vehicle body can be quickly restored, the safety is ensured. However, since the vehicle body is supported by the stopper after returning, the riding comfort is never good. In the latter method, since the return of the leaned vehicle body depends only on the automatic height adjustment valve by shutting off the fluid operating mechanism, it takes time to return, and sufficient safety is ensured during that time. It is hard to say that.

[0010] Reliability Although the control valve for stopping the operation of the automatic height adjustment valve and the non-control switching valve are provided during the inclination control, the failure of the control and non-control switching valve is provided. No measures have been taken.

[0011] Ride comfort For example, when the exhaust valve fails, the conventional vehicle body inclination control device is rapidly exhausted by the emergency exhaust valve and the air spring is in a punctured state. Can not be avoided.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional vehicle body inclination control device, and provides a further safety measure against fail-safe operation of the conventional vehicle body inclination control device. It is another object of the present invention to provide a vehicle body tilt control device that can improve reliability and also suppress deterioration of ride comfort.

[0013]

In order to achieve the above object, a vehicle body inclination control device according to the present invention is output from at least one of a position detector, a point detector, a speed detector, and a controller. When the controller detects an abnormal leaning of the vehicle body based on the signal, the controller normally closes the emergency shutoff valve that is open and closes the switching valve that is closed during tilting control to open the automatic height adjustment valve. It is configured to operate. By doing so, the vehicle body can be quickly returned from the inclination and safety can be ensured, and the riding comfort does not deteriorate. Further, in the vehicle body inclination control device of the present invention, since the emergency shutoff valve is installed in series with the exhaust valve, even if the exhaust valve fails, the air spring is punctured like the conventional emergency exhaust valve. No state occurs and reliability is ensured.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle body inclination control device according to the present invention includes a position detector provided on each knitting vehicle for detecting the height of a vehicle body, a point detection device mounted on any one of the knitting vehicles, and A signal from the speed detector is input, and based on the input signal, an air supply valve and an exhaust valve that operate air springs provided in each of the trains, respectively, and a valve between the air supply valve, the exhaust valve and the air spring. Control to output a signal to an emergency shut-off valve provided in the middle of the air piping, and a switching valve provided in the middle of the air piping between the supply valve and the exhaust valve from the automatic height adjustment valve and the source air reservoir. A vehicle body inclination control device including a device, wherein when the vehicle body inclination abnormality is detected based on a signal output from at least one of the position detector, the point detection device, the speed detector, and the controller, the controller Emergency shut-off valve that is normally open is closed, And, during tilt control is obtained by configured to operate an automatic height adjustment valve to the selector valve in the closed state to the open state.

In the vehicle body inclination control apparatus of the present invention, when an abnormal inclination of the vehicle body is detected, the emergency shut-off valve which is normally open is closed, and when the inclination is controlled, the switching valve which is closed is opened. , Air supply valve used for vehicle body tilt control,
Since the automatic height adjustment valve is used in addition to the exhaust valve, the vehicle body can be quickly returned from the inclination and safety can be secured.

Further, in the vehicle body inclination control device of the present invention, the emergency shut-off valve provided in the middle of the air pipe between the air supply valve, the exhaust valve and the air spring is installed in series with the exhaust valve, and the exhaust valve is provided. Even if it breaks down, the air inside the air spring will not escape, so even if the exhaust valve fails, the air spring will not be in a punctured state like the conventional emergency exhaust valve. ,
At the same time as the reliability is secured, it is possible to obtain the same ride quality as in non-control.

In the vehicle body inclination control device of the present invention described above, the measure for the occurrence of the abnormality detected based on the signal output from at least one of the position detector, the point detection device, the speed detector, and the controller is an abnormality. Depending on the location of the occurrence, if the vehicle body is horizontal according to the tilting state of the vehicle body, the controller closes the air supply and exhaust valves and closes the emergency shut-off valve that is normally open. When the vehicle is in a tilted state, a signal is output so as to switch to a non-control state in which the switch valve in the closed state is opened and the automatic height adjustment valve is operated at the time of tilt control. The controller uses the air supply and exhaust valves within the set time to return to the horizontal position as much as possible, then closes the emergency shut-off valve that is normally open, and on the other hand, tilts simultaneously with abnormality detection. Sometimes a closed switch valve is opened. When configured to output a signal to operate the automatic height adjustment valve will allow optimal vehicle body tilt control than depending on the vehicle body inclination state.

In the vehicle inclination control apparatus of the present invention, when two or more switching valves are arranged in parallel for each air spring, the automatic height adjustment valve cannot be used due to a failure of the switching valve. As a result, it is possible to prevent the driving safety from being hindered, so that the reliability against the failure of the switching valve is improved.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in FIG. FIG. 1 is a block diagram showing an embodiment of a vehicle body inclination control device according to the present invention. In FIG. 1, "f, r" indicates a front bogie and a rear bogie of one vehicle, respectively, and "'" indicates a bogie. Although "f, r" and "'" are omitted for simplicity in the following description, they are added for distinguishing left and right.

In FIG. 1, reference numeral 11 denotes a position detector for detecting the height of a vehicle body 1 provided on each train, and reference numeral 12 is mounted on any one of the trains and obtains a traveling point of the running vehicle. The point detector 13 is a speed detector that is mounted on any one of the vehicles of the formation and detects the speed of the running vehicle. The position detector 11, the point detector 12, and the speed detector 13 Are input to, for example, a controller 14 provided in each vehicle of the train set.

Reference numerals 15 and 16 denote an air supply valve and an exhaust valve provided in the middle of an air pipe 18 connecting the original air reservoir 17 and the air spring 3 so as to operate the air springs 3 provided in each train. An emergency shut-off valve 19 which is always open is provided in series with the exhaust valve 16 in the middle of an air pipe 18 connecting the air supply valve 15 and the exhaust valve 16 to the air spring 3.

Reference numeral 20 denotes an air spring for compensating for the displacement of the air spring 3 caused by the fluctuation of the floor height of the vehicle body 1 from the fixed part on the bogie 2 side due to the fluctuation of the vehicle body 1 or the increase and decrease of passengers. 3 is an automatic height adjustment valve that operates so as to supply and exhaust air to and from the automatic height adjustment valve 20 and the air pipe 21 from the source air reservoir 17 to the air supply valve 15 and the exhaust valve 16. At the time of tilt control of the vehicle body 1, for example, two switching valves 22 in a closed state are interposed in parallel. Reference numeral 23 denotes a pressure detector that monitors the pressure of the source air reservoir 17, and a signal from the pressure detector 23 is also input to the controller 14.

For example, as the abnormality A, an abnormal inclination of the vehicle body due to the failure of the air supply valve 15 occurs, and the height of the abnormality occurrence portion detected by the position detector 11 is used as the abnormality detection function by the controller 1.
If the maximum value hmax set in step 4 is exceeded, the controller 14
A signal is also output to the driver's seat at the same time as the display of the abnormality in the vehicle to display the occurrence of the abnormality. On the other hand, as a fail-safe mechanism,
The controller 14 outputs a signal command to each valve.

That is, the air supply valve 15 and the exhaust valve 16 for operating the air spring 3 have a failure in the air supply valve 15 in part, but the other valves can be used, so that the control is returned to the neutral height. The emergency shutoff valve 19 in the air pipe 18 between the air supply valve 15 and the exhaust valve 16 and the air spring 3 is changed from the normal open state to the closed state. On the other hand, the switching valve 22 in the middle of the air pipe 21 between the supply valve 15 and the exhaust valve 16 from the automatic height adjustment valve 20 and the source air reservoir 17 to the automatic height adjustment valve 2 from the closed state during tilt control.
The automatic height adjustment valve 20 is used in addition to the air supply valve 15 and the exhaust valve 16 used for the tilt control of the vehicle body 1 in the open state for operating the zero. When the display of the abnormality is turned on in the driver's seat, it is desirable that the driver immediately reduce the speed to the safe driving speed range to ensure further driving safety.

Also, when the air spring 3 is punctured due to the failure of the exhaust valve 16 as the abnormality B, the same measures as described above are taken. When the position detector 11 has failed as the abnormality C, the position detector 11 displays an unusual height, and at the same time, an abnormality detection signal is output to the controller 14 by an abnormality circuit in the position detector 11. Therefore, in such a case, unlike the measures described above, the air supply valve 1
5. The exhaust valve 16 and the emergency shutoff valve 19 are closed, and the switching valve 22 is opened.

In the above-described tilt control using the vehicle body tilt control device of the present invention, signals output from the position detector 11, the point detection device 12, the speed detector 13 and the like to the controller 14 and the supply of air from the controller 14 are performed. The measures for the occurrence of the abnormality detected based on at least one of the signals output to the valve 15, the exhaust valve 16, and the like depend on the location of the abnormality, but when the tilt state of the vehicle body 1 is horizontal, Air supply valve 1
5. The exhaust valve 16 is closed, the emergency shutoff valve that is normally open is closed, and the automatic switching valve 22 is opened during tilt control, and the automatic height adjustment valve 20 is operated. When the vehicle body 1 is in an inclined state, the air supply valve 15 and the exhaust valve 16 are returned to a horizontal state as much as possible within a set time, and then the emergency shutoff valve 19 which is normally open is closed. On the other hand, the switching valve 22 in the closed state is opened and the automatic height adjustment valve 20 is operated at the time of the inclination control simultaneously with the abnormality detection. In this manner, a more optimal fail-safe mechanism according to the tilt state of the vehicle body 1 can be performed.

By doing so, the vehicle body 1 can be quickly returned from the inclination and safety can be ensured, and the riding comfort is deteriorated as compared with the related art in which the inclination of the vehicle body 1 is controlled by hitting the stopper. Can be suppressed.

Further, in the vehicle body inclination control device of the present invention, the emergency shutoff valve 19 provided in the middle of the air pipe 18 between the air supply valve 15, the exhaust valve 16 and the air spring 3 is connected in series with the exhaust valve 16. If the exhaust valve 16 breaks down,
Unlike the conventional emergency exhaust valve, the air spring 3 does not go into a puncture state, and it is possible to obtain the same riding comfort as in the non-control state.

Further, in this embodiment, two switching valves 22 are arranged in parallel for each air spring 3, so that even if one of the switching valves 22 fails, the automatic height adjustment valve 20 cannot be used. Therefore, the driving safety is not hindered, and the reliability against the failure of the switching valve 22 is improved.

By the way, when each of the abnormalities A to C described above is used by using the vehicle body inclination control device of the present invention (hereinafter, referred to as “the abnormalities A to C”).
It is referred to as "the present invention". ), A conventional case using an automatic height adjustment valve alone (hereinafter, referred to as “conventional 1”), and a conventional case using an automatic height adjustment valve and an emergency exhaust valve (hereinafter, “conventional 2”). ) Are shown in FIGS. 2 to 4, respectively.

First, when the behavior at the time of abnormality A is compared, FIG.
As shown in (1), in the prior art 1, since the air supply valve and the exhaust valve are shut off and only the automatic height adjustment valve is operated, it takes time until the height of the vehicle body returns to the neutral position. If the vehicle enters the next curve, that is, the curve in the opposite direction to that at the time of inclining before the incline of the vehicle body is fully recovered, the vehicle body will further incline due to centrifugal force, which will affect running safety.

On the other hand, in the prior art 2, since the emergency exhaust valve is used, the inclination of the vehicle body quickly returns, but the riding comfort deteriorates due to the puncture of the air spring. On the other hand, in the present invention, by using the air supply valve 15, the exhaust valve 16 and the automatic height adjustment valve 20 in combination, the inclination of the vehicle body 1 can be returned quickly, and the riding comfort can be improved because the air spring 3 is in the neutral position. As in the case of non-control, it is better than Conventional 2.

Next, when the behavior at the time of abnormality B is compared, FIG.
As shown in (1), in the related art 1, since the return is performed only by the automatic height adjustment valve, it takes time to return. On the other hand, in Conventional Technique 2, since the emergency exhaust valve operates, the riding comfort is degraded while the air spring remains punctured.

On the other hand, in the present invention, by using the air supply valve 15, the exhaust valve 16 and the automatic height adjustment valve 20 together,
Since the inclination of the vehicle body 1 returns earlier than in the conventional example 1, and since the air spring 3 is in the neutral position, the riding comfort is the same as in the non-control state, and is better than in the conventional example 2.

Finally, when the behavior at the time of the abnormality C is compared, as shown in FIG. 4, in the conventional example 2, the emergency exhaust valve operates due to the occurrence of the abnormality, and the air spring is punctured. On the other hand, in the present invention and Conventional Example 1, the height of the air spring does not change even if an abnormality occurs.

In this embodiment, the position detector 11
Although the one that detects the inclination abnormality is shown, the inclination abnormality is determined according to the abnormality occurrence location by the point detection device 12, the speed detector 13,
Alternatively, the detection can be performed based on a signal from the pressure detector 23. Furthermore, by using the above signals together,
It is possible to improve reliability.

In this embodiment, the controller 14 is provided for each vehicle in the formation. However, the controller 14 is provided only for any one of the vehicles in the formation.
4, a signal from each vehicle in the train is input, and a signal is output to each valve in each vehicle. Alternatively, the controller 14 is provided in each vehicle in the train and any one vehicle in the train. It may be divided into parts provided only.

[0038]

As described above, the vehicle body inclination control apparatus of the present invention uses the automatic height adjustment valve in addition to the air supply valve and the exhaust valve for the vehicle body inclination control. From a quick inclination and safety can be secured. Also,
Since the emergency shut-off valve is installed in series with the exhaust valve, even if the exhaust valve fails, the air in the air spring does not escape, and the air spring may become punctured like a conventional emergency exhaust valve. Therefore, at the same time as the reliability is secured, it is possible to obtain the same riding comfort as when the vehicle is not controlled.

That is, with respect to the fail-safe control of the vehicle body inclination control, the reliability of the control apparatus is improved, the running safety of the vehicle is secured, and the riding comfort at the time of a failure is suppressed by the vehicle body inclination control apparatus of the present invention. did it.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of a vehicle body inclination control device of the present invention.

FIG. 2 is a diagram showing a comparison between the present invention and each conventional fail-safe after an abnormal rise of a vehicle body is detected, expressed by an actual air spring height.

FIG. 3 is a diagram showing a comparison between the present invention and each conventional fail-safe after a puncture detection of an air spring is represented by an actual air spring height.

FIG. 4 is a diagram showing a comparison between the present invention and each conventional fail-safe after detecting a failure of the position detector, expressed by an actual air spring height.

FIG. 5 is a configuration diagram illustrating an example of a conventional vehicle body inclination control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 3 Air spring 11 Position detector 12 Point detector 13 Speed detector 14 Controller 15 Air supply valve 16 Exhaust valve 17 Main air reservoir 18 Air piping 19 Emergency shutoff valve 20 Automatic height adjustment valve 21 Air piping 22 Switching valve

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Jun Kosakata 5-1-1109 Shimaya, Konohana-ku, Osaka-shi, Sumikin Design Engineering Co., Ltd.

Claims (3)

[Claims] 1. A signal from a position detector provided in each vehicle of a formation and detecting a height of a vehicle body, and a point detection device and a speed detector mounted on any one of the vehicles of the formation are inputted. An air supply valve and an exhaust valve that respectively operate air springs provided on each train based on an input signal, and an emergency cutoff provided in the middle of an air pipe between the air supply valve, the exhaust valve and the air spring. A vehicle tilt control device comprising: a valve; an automatic height adjustment valve; and a controller that outputs a signal to a switching valve provided in the middle of an air pipe extending from the source air reservoir to the air supply valve and the exhaust valve. When the vehicle body tilt abnormality is detected based on a signal output from at least one of the position detector, the point detector, the speed detector, and the controller, the controller closes the emergency shut-off valve that is normally open. Switching valve in the closed state during tilt control. Body tilt control apparatus characterized by being configured to operate the automatic height adjustment valve in the open state. 2. The vehicle inclination control device according to claim 1, wherein a measure for the occurrence of an abnormality detected based on a signal output from at least one of a position detector, a point detection device, a speed detector, and a controller is provided. According to the leaning state of the vehicle body, when the vehicle body is horizontal,
In the controller, the supply and exhaust valves are closed, and the emergency shutoff valve, which is normally open, is closed, and during tilt control, the closed switching valve is opened, and the automatic height adjustment valve is opened. Outputs a signal to switch to the non-controlled state where it was operated, and when the vehicle body was in the inclined state, the controller used the air supply valve and exhaust valve within the set time and returned to the horizontal state as much as possible Later, the emergency shutoff valve, which is normally open, is closed, and
On the other hand, a vehicle body tilt control device is configured to output a signal to open a switching valve in a closed state and to operate an automatic height adjustment valve at the time of tilt control simultaneously with abnormality detection. 3. The vehicle body inclination control device according to claim 1, wherein two or more switching valves are arranged in parallel for each air spring.