The present invention relates to a method for automatically controlling tack-bound vehicles wherein, in a normal operating mode, the respective position of the track-bound vehicles is reported by them to a track-side device, a respective movement authority is determined for the track-bound vehicles by the track-side device, taking account of the reported positions, and said movement authority is transmitted to the respective track-bound vehicle.
Such a method for automatically controlling track-bound vehicles in which vehicles can be, for example, rail vehicles, track-guided vehicles with rubber tires or magnetic levitation trains, is known, for example, from the company publication “Trainguard® MT—Optimale Leistung mit dem führenden Zugbeeinflussungssystem für den Nahverkehr” (Order No.: A19100-V100-B976, Siemens AG 2014). This describes a CBTC (communication-based train control) train control system for automatic controlling track-bound vehicles in the form of underground railways or metro networks. Herein, an optimization of network capacity and network throughputs takes place in that by means of continuous, bidirectional communication between the vehicles and the track section, travel in moving spacing mode (moving block operation) is enabled. This presupposes that during operation, the track-bound vehicles report their position cyclically to a track-side device of the train control system. In case of faults, that is for example, if one of the vehicles can no longer report its position in the assured form to the track-side device, the possibility exists, for recognizing or position-determination of the track-bound vehicles, of using information of a track vacancy reporting system. However, this has the result that moving block operation is no longer possible and consequently the efficiency of the system is significantly reduced.
It is an object of the present invention to provide a method of the aforementioned type which enables efficient operation of the track-bound vehicles even in the event that one of the track-bound vehicles is faulty such that it can no longer guarantee its integrity and is consequently not in a position to report a valid and reliable position.
This object is achieved according to the invention for a method of the aforementioned type in that, in the event that one of the track-bound vehicles is faulty such that it cannot guarantee its integrity, without interrupting the travel operation of the track-bound vehicles, switching over into a fault mode takes place, wherein in the fault mode, the faulty track-bound vehicle determines a position of one of its vehicle ends and reports said position to the track-side device, together with an item of information to the effect that it cannot guarantee its integrity, and the movement authorities for the track-bound vehicles are determined by the track-side device such that in relation to the faulty track-bound vehicle, in respect of one vehicle end, the reported position is taken into account and, in respect of the other vehicle end, an item of vacancy reporting information of a track-side vacancy reporting system is taken into account.
According to the first characterizing feature, the inventive method is distinguished in that in the event that one of the track-bound vehicles is faulty such that it cannot guarantee its integrity, without interrupting the travel operation of the track-bound vehicles, switching over into a fault mode takes place. A cause for the faulty track-bound vehicle not being able to guarantee its integrity, that is, its completeness, can herein be for example, that a vehicle-side component has failed or a communication connection between the two vehicle ends of the track-bound vehicle is faulty and thus only an item of information regarding the position of one of the two vehicle ends is available. Alternatively, however, a corresponding fault can in principle also be caused thereby that the track-bound vehicle has broken apart or has lost a vehicle part, for example, in the form of one of its wagons on the track section. Herein, it should be considered that the track-bound vehicles in the context of the inventive method can consist of any desired number of powered and/or non-powered units connected and/or linked or coupled to one another firmly or loosely. The guaranteeing of the integrity of the track-bound vehicles is of great safety relevance, particularly in moving block operation, since the track-side device releases the track sections currently not occupied by the respective track-bound vehicle for other track-bound vehicles on the basis of the position reports of the track-bound vehicles.
According to the invention, the switch-over from normal operating mode into fault mode takes place without interrupting the travel operation, that is, dynamically during continuing travel operation. Preferably, this takes place without any interim automatic braking or emergency braking of the faulty track-bound vehicle or one of the other track-bound vehicles preceding or following it.
According to the second characterizing feature, in fault mode, the faulty track-bound vehicle determines a position of one of its vehicle ends and reports said position to the track-side device together with an item of information to the effect that it cannot guarantee its integrity. The inventive method is therefore characterized in that in fault mode, the faulty track-bound vehicle at least also determines the position of one of its vehicle ends and reports said position to the track-side device together with an item of information to the effect that it cannot guarantee its integrity and consequently cannot report a position relating to its other vehicle end.
According to the third characterizing feature, it is hereby advantageously enabled that the movement authorities, also often known as movement authorities (MA) for the track-bound vehicles are determined by the track-side device such that in respect of the faulty track-bound vehicle, in relation to one vehicle end, the reported position is taken into account and, in relation to the other vehicle end, an item of vacancy reporting information of a track-side vacancy reporting system is taken into account. This means that, in fault mode, the faulty track-bound vehicle is not switched out of moving block operation, that is, out of traveling at a moving spacing, into moving at a fixed spacing on the basis of vacancy reporting information of a track-side vacancy reporting system. Rather, the movement authorities for the track-bound vehicles, that is for the faulty track-bound vehicle and further track-bound vehicles the movement authorities of which are controlled by the faulty track-bound vehicle are determined by the track-side device such that in relation to the one vehicle end for which a valid safety-related position of the faulty track-bound vehicle has continued to be reported, this reported position is further used, also in fault mode. In relation only to the other vehicle end, that is, the vehicle end for which, due thereto that the faulty track-bound vehicle cannot guarantee its integrity, no position report is available, an item of vacancy reporting information of a track-side vacancy reporting system is taken into account.
The inventive method is therefore characterized in that in the event that a track-bound vehicle can no longer guarantee its integrity, switching over from normal operating mode to fault mode takes place dynamically. Thereafter, in fault mode, in relation to the two vehicle ends of the faulty track-bound vehicle, different methods are used for position determination. While the movement authorities for the track-bound vehicles are determined in relation to the one vehicle end, taking account of the available reported position, in relation to the other vehicle end, an item of vacancy reporting information of a track-side vacancy reporting system is taken into account. This has the advantage that in fault mode, a moving block operation can still largely be maintained. By this means, advantageously, the robustness and availability of the system for automatically controlling the track-bound vehicles, that is for example, the CBTC system, is ultimately improved. By this means, it is possible in particular that a faulty track-bound vehicle can complete the respective operating day before an error correction is undertaken. Furthermore, the inventive method has the advantage, in particular, that typically systems for automatically controlling track-bound vehicles, also known as a train control system, often have, as a fallback level for the event of a failure of the automatic train control system often have track-side vacancy reporting systems, for example, in the form of track vacancy reporting devices. This means that the inventive method is advantageously normally realizable without any new track-side components being necessary.
Advantageously, the inventive method can be developed such that in the event that a vehicle end which, in relation to a travel direction of the faulty track-bound vehicle, is the front vehicle end, the movement authority for the faulty track-bound vehicle is determined taking account of the reported position of the one, front vehicle end. In the event that the one vehicle end is the front vehicle end and for this therefore, a vehicle-side determined position is still available, the movement authority for the faulty track-bound vehicle can advantageously be determined taking account of the reported position of the one, front vehicle end. This means that for the faulty track-bound vehicle itself, a moving block operation is still possible. By this means, it is advantageously prevented that in respect of the faulty track-bound vehicle, on determination of its movement authority, an item of vacancy reporting information of a track-side vacancy reporting system has to be made use of. Thus at least in respect of the faulty track-bound vehicle itself, continuing trouble-free operation in the sense of travel with moving spacing is enabled, that is, a switch-over to traveling with fixed spacing on the basis of corresponding blocks of a track-side vacancy reporting system is advantageously not required.
According to a further preferred embodiment, the inventive method is configured such that in the event that a vehicle end which, in relation to a travel direction of the faulty track-bound vehicle, is the front vehicle end, the respective movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the other, rear, vehicle end is determined taking account of the vacancy reporting information of the track-side vacancy reporting system. In the event that in respect of the front vehicle end, a reported position is still available to the track-side device, a movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the other, rear, vehicle end can thus be determined taking account of the vacancy reporting information of the track-side vacancy reporting system. This means that the travel operation at least in respect of the immediately following track-bound vehicle is switched over to travel at a fixed spacing by means of corresponding blocks of the track-side vacancy reporting system.
Advantageously, the inventive method can also be configured such that in the event that the one vehicle end which, in relation to a travel direction of the faulty track-bound vehicle, is the rear vehicle end, the respective movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the one, rear, vehicle end is determined taking account of the reported position of the one, rear, vehicle end. This preferred development therefore relates to the event that the one vehicle end for which a reported position is still available is the rear vehicle end of the faulty track-bound vehicle. In this event, therefore, the possibility advantageously exists of determining the respective movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the one, rear, vehicle end, taking account of the reported position of the one, rear, vehicle end. In this situation also, therefore, the fault caused in the entire system by the faulty track-bound vehicle is advantageously minimized during the operational procedure.
In the context of the inventive method, the vacancy reporting information taken into account in respect of the other vehicle end can in principle be an item of vacancy reporting information of any desired per se known track-side vacancy reporting system.
According to another particularly preferred embodiment of the inventive method, in respect of the other vehicle end of the faulty track-bound vehicle, an item of vacancy reporting information of a track-side vacancy reporting system in the form of an axle counting system can be taken into account. This is advantageous since an axle counting system is a widely used and tested track-side vacancy reporting system.
In addition or alternatively to the aforementioned preferred development, the inventive method can advantageously also be configured such that in respect of the other vehicle end of the faulty track-bound vehicle, an item of vacancy reporting information of a track-side vacancy reporting system on the basis of track circuits is taken into account.
Track circuits also represent a well tried track-side vacancy reporting system often already present as a fallback level which can thus advantageously be used in the context of the inventive method for providing the vacancy reporting information. Even if the track-side vacancy reporting system is typically either an axle counting system or a vacancy reporting system on the basis of track circuits, it is fundamentally also conceivable that a track-side vacancy reporting system comprises both axle counting systems and track circuits. Such a combined track-side vacancy reporting system can also be used in the context of the inventive method.
The present invention further relates to a device for automatically controlling track-bound vehicles, wherein the device comprises vehicle-side devices arranged on the track-bound vehicles and a track-side device and is configured such that in a normal operating mode, the vehicle-side devices report a position of the respective track-bound vehicle to the track-side device, said track-side device determines a respective movement authority, taking account of the reported positions for the track-bound vehicles and transmits said movement authority to the vehicle-side device of the respective track-bound vehicle.
Such a device is also known from the aforementioned company publication of Siemens AG.
With regard to the device, it is an object of the present invention to provide a device of the aforementioned type which enables an efficient operation of the track-bound vehicles to be maintained even in the event that one of the track-bound vehicles is faulty such that it can no longer guarantee its integrity and is consequently not in a position to report a valid and/or reliable position.
This object is achieved according to the invention for a device of the aforementioned type in that the device is configured such that, in the event that one of the track-bound vehicles is faulty to the effect that it cannot guarantee its integrity, without interrupting the travel operation of the track-bound vehicles, said device switches over into a fault mode in which the vehicle-side device of the faulty track-bound vehicle determines a position of one of its vehicle ends and reports said position, together with an item of information to the effect that the faulty track-bound vehicle cannot guarantee its integrity, to the track-side device, and the track-side device determines the movement authorities for the track-bound vehicles such that with regard to the faulty track-bound vehicle it takes account, in respect of one vehicle end, of the reported position and, in respect of the other vehicle end, of an item of vacancy reporting information of a track-side vacancy reporting system.
The advantages of the inventive device correspond to those of the inventive method so that in this regard reference is made to the corresponding description above. The same applies with regard to the preferred developments of the inventive device mentioned below in relation to the corresponding preferred developments of the inventive method, so that in this regard also, reference is made to the corresponding description above.
Advantageously, the inventive device can be developed such that in the event that the one vehicle end which, in relation to a travel direction of the faulty track-bound vehicle is the front vehicle end, the track-side device determines the movement authority for the faulty track-bound vehicle, taking account of the reported position of the one, front vehicle end.
According to a particularly preferred development, the inventive device is configured such that in the event that the one vehicle end which, in relation to a travel direction of the faulty track-bound vehicle, is the front vehicle end, the track-side device determines the respective movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the other, rear, vehicle end, taking account of the vacancy reporting information of the track-side vacancy reporting system.
Preferably, the inventive device can also be configured such that in the event that the one vehicle end which, in relation to a travel direction of the faulty track-bound vehicle, is the rear vehicle end, the track-side device determines the respective movement authority for at least one track-bound vehicle following the faulty track-bound vehicle at the one, rear, vehicle end, taking account of the reported position of the one, rear, vehicle end.
According to another particularly preferred embodiment of the inventive device, in respect of the other vehicle end of the faulty track-bound vehicle, the track-side device takes account of an item of vacancy reporting information of a track-side vacancy reporting system in the form of an axle counting system.
Advantageously, the inventive device can also be configured such that, in respect of the other vehicle end of the faulty track-bound vehicle, the track-side device takes account of an item of vacancy reporting information of a track-side vacancy reporting system on the basis of track circuits.
The invention will now be described in greater detail making reference to exemplary embodiments. In the drawings:
In the figures, identical reference signs are used for the same components in each case.
According to the representation in
Apart from the track-side device 40, also indicated on the track-side are axle counters 50 and 51. Herein, the axle counters 50, 51 are a component of a track-side vacancy reporting system in the form of an axle counting system which is provided for the event that an automatic train control operation in moving block operation is not possible due to a fault. This means that the axle counters 50, 51 or a corresponding item of vacancy reporting information provided thereby are not used in the normal operating mode of the automatic train control system. Rather, in the normal operating mode, the respective position of the track-bound vehicles 10, 20 is reported by them to the track-side device 40. Herein, in
On the side of the track-bound vehicle 10, the train position indicated by the position range 60 can be determined, for example, in known manner by means of a vehicle-side odometry system, for example, using a wheel impulse generator in combination with track-side balises. Alternatively, it is herein also conceivable, for example, that the positions of the vehicle ends of the track-bound vehicle 10 are determined with satellite support, that is, by means of a GNSS (global navigation satellite system) receiver. Furthermore, a determination of the position of the vehicle ends of the track-bound vehicle 10 can also take place, for example, through the location of a vehicle-side receiver in a radio network. This can take place, for example, in that on the vehicle side, the reports received from track-side access points of the radio network are evaluated and the position of the track-bound vehicle relative to the access points is determined. Herein as the radio network, for example, a WLAN (wireless local area network), for example according to the standard IEEE 802.11, or a mobile radio network, for example according to one of the standards GSM (global system for mobile communications), GPRS (general packed radio service), UMTS (universal mobile telecommunications system) or LTE (long term evolution) can be used.
In the context of the exemplary embodiment described, it is to be assumed that the vehicle-side devices 11, 21 of the track-bound vehicles 10, 20 comprise suitable means for determining the position of the respective track-bound vehicle 10, 20. Depending upon the respective embodiment, it is herein possible that at the respective other vehicle end, a suitable vehicle-side device or at least means for determining the position of the relevant vehicle end are provided. Alternatively thereto, it can also suffice that on the part of the respective vehicle-side device 11, 21, the position of the one, in the present case, front vehicle end is determined and the integrity of the track-bound vehicles 10 or 20 is guaranteed by a corresponding vehicle-side monitoring. This can take place, for example, by means of a corresponding communication connection between the vehicle ends of the track-bound vehicles 10, 20.
At this point, it should be noted that, as distinct from the simplified schematic representation of
In normal operating mode, a respective movement authority 70, 71 is determined by the track-side device 40, taking account of the positions for the track-bound vehicles 10, 20 reported by the vehicle-side devices 11, 21 of the track-bound vehicles 10, 20 and said movement authority is transmitted to the respective track-bound vehicle 10, 20. Herein, the respective movement authorities 70, 71 in
The scenario shown in
In the situation shown in
In the context of the exemplary embodiment described, it is herein assumed that due to the respective fault of the track-bound vehicle 10 without interrupting travel operation of the track-bound vehicles 10 and 20, switching over takes place from the normal operating mode of the train control system into a fault mode. This means that the switch-over from the normal operating mode into the fault mode takes place dynamically wherein in this relation, preferably no automatic braking of the track-bound vehicles 10, 20 is required.
In the fault mode, the faulty track-bound vehicle 10 further determines a position of one of its vehicle ends, that is in this case, the front vehicle end at which the vehicle-side device 11 is arranged. The determined position of the one vehicle end is reported to the track-side device 40 by the track-bound vehicle 10 or its vehicle-side device 11 together with an item of information to the effect that it cannot guarantee its integrity.
The movement authorities 61 and 72 for the track-bound vehicles 10, 20 are now determined by the track-side device 40 such that in respect of the faulty track-bound vehicle 10, in relation to the one front vehicle end, the reported position is taken into account and, in relation to the other, rear, vehicle end, an item of vacancy reporting information of the track-side vacancy reporting system is taken into account. This is indicated in
In respect of the other, that is rear, vehicle end, for the control of the track-bound vehicles 10, 20, however, an item of vacancy reporting information from a track-side vacancy reporting system in the form of the axle counting system with the axle counters 50 and 51 is taken into account. On the basis of the available vacancy reporting information, it is herein possible for the track-side device 40 to delimit the rear vehicle end of the track-bound vehicle 10 by means of the position of the axle counter 50. The additional position range which the track-bound vehicle 10 or parts thereof can therefore occupy is indicated in
Since when traveling with a fixed spacing, typically at least one free block is required between the track-bound vehicles 10 and 20, this leads in the situation shown in
It should be noted that, as distinct from the representation of
The method described above and the associated device are characterized in particular in that through the skillful combination of the available information, the efficiency of the system for automatically controlling the track-bound vehicles 10, 20 in the form of the respective train control system is improved in the event of train integrity faults. This applies particularly in relation to the robustness and availability of CBTC systems since a moving block operation is maintained whenever possible and switching over only takes place in the absolutely necessary extent of a use of the vacancy reporting information of the track-side vacancy reporting system. As a result, this therefore leads thereto that, in the event that one of the track-bound vehicles 10, 20 can no longer guarantee its integrity and therefore switching over to a fault mode takes place, the travel operation can be largely maintained. This has the result that even a faulty track-bound vehicle can advantageously firstly still complete the operating day before correction of the fault takes place. By this means, therefore operating disruptions due to train integrity faults can be minimized and in the event of their occurrence, resolved as rapidly as possible. Advantageously, herein in the respective system, components and mechanisms that are often already present can be dynamically combined such that an increase in the robustness and thus of the efficiency of the overall system results.
Number | Date | Country | Kind |
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10 2015 204 769 | Mar 2015 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2016/054099 | 2/26/2016 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2016/146365 | 9/22/2016 | WO | A |
Number | Name | Date | Kind |
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20050065726 | Meyer | Mar 2005 | A1 |
20140229096 | Carlson | Aug 2014 | A1 |
20140350767 | Fries | Nov 2014 | A1 |
20150307119 | Ghaly | Oct 2015 | A1 |
Number | Date | Country |
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10214224 | Oct 2003 | DE |
102007026407 | Dec 2008 | DE |
102008023347 | Nov 2009 | DE |
102013101927 | Aug 2014 | DE |
102014210190 | Dec 2015 | DE |
2009139927 | Nov 2009 | WO |
Entry |
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Siemens, “Trainguard MT—Optimal performance with the world's leading automatic train control system for mass transit”, A19100-V-100-B976 Siemens AG 2014, www.siemens.com/mobility/mobility—English version. |
Heitmann R. et al., “Systeme zur Zugvollstaendigkeitsueberwachung”, [Systems for Monitoring Train Completeness], Signal & Draht [89] Nov. 1997, pp. 22-25—English abstract. |
Number | Date | Country | |
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20180105192 A1 | Apr 2018 | US |