DK2858873T3

DK2858873T3 - Method and device for standstill monitoring in rail vehicles

Info

Publication number: DK2858873T3
Application number: DK13733995.8T
Authority: DK
Inventors: Karsten Rahn; Lothar Becke; Steffen Giere; Karsten Jahns; Olga Esch
Original assignee: Siemens Ag
Priority date: 2012-07-20
Filing date: 2013-06-24
Publication date: 2017-10-23
Also published as: WO2014012747A1; EP2858873B1; DE102012212808A1; ES2645618T3; EP2858873A1

Description

The invention relates to a method and a device for standstill monitoring in rail vehicles using a train control device.

Modern train control devices require precise route or location information of both stationary and also moving rail vehicles.

To this end US patent application US 2005/0137760 A1 discloses a corresponding method.

However, it was previously not possible to ascertain whether, when the train control device was switched off, the standstill of the rail vehicle assumed with this operating state was actually observed. If rail vehicles are completely switched off at park positions at the end of operation, the precise safety-related train position is lost for the train control. After switching the rail vehicle back on, the safety-related position of the vehicle is not known and the initialisation of the train position can only be determined by traversing at least two location reference points, e.g. balises. It is only then that from a train control point of view the vehicle can be put into operation. This means that vehicles in park positions are not permitted to be completely switched off; at least the train control must remain active. The disadvantage is above all the significant energy demand which is required for this purpose.

Another possibility consists in the rail vehicle storing its safety-related position prior to being switched off and using this position as an initialisation position after being switched back on. The safety-related condition required for the usability of the stored vehicle position is that the vehicle was not moved when the train control is switched off - cold movement. If the rail vehicle moves however, the use of the original position for initialisation purposes by personnel must be prevented. This non technical solution can in reality often not be realised.

The object underlying the invention is accordingly to specify a method and a device for standstill monitoring in rail vehicles, which have a train control device.

In accordance with the method, the object is achieved by the features of the claim.

The rail vehicle saves its safety-related position prior to switching off the train control device at a park position. In addition to the position, sensor information of a track vacancy detection system of the relevant track vacancy detection sections is saved. After switching the vehicle back on, the current sensor information is requested by the track vacancy detection system and is compared either manually or automatically with the stored sensor information. If this is exactly the same, no train movement - cold movement - takes place during the switch-off state in the relevant track vacancy detection sections and the saved train position can be used in a safety-related manner. The rail vehicle is safely localised or initialised for signalling purposes even before departure, i.e. still in standstill.

In this way the saved train position is evaluated in a safety-related manner by an additional criterion. Therefore a technical solution is available, by means of which the plausibility of the saved vehicle location can be checked in a safety-related manner so that no personnel is required to ensure safety.

For standstill monitoring when the train control device is switched off, no independent device is required on the rail vehicle on account of the additional functions of the components predominantly already available, such as track vacancy detection devices and storage device. As a result, cost and installation space advantages result, which is important particularly for subsequent installation in rail vehicles. Provision need only be made for the storage and evaluation of the sensor information of the track vacancy detection device.

According to the invention, the sensor information to be saved comprises a current count of axle counter sensors. Track vacancy detection sections on the basis of axle count sensors are well known. Only the absolute count has to be stored independently of the direction of travel.

In accordance with the invention this information is transmitted to the rail vehicle via an on-board lineside unit and stored. In particular for an efficient ETCS - European Train Control System - level 2 operation it is necessary for the ETCS vehicle device to be able to determine whether the rail vehicle has been moved since the train control device was switched off. For this purpose very high requirements are placed on the safety level. Without standstill monitoring and after switching on the train control device the rail vehicle must firstly move into driver responsibility, until, on account of balise information, a clear localisation of the rail vehicle is possible and the condition for the ETCS level 2 operation is thus given. A safer mode of operation, i.e. a minimisation of the driver responsibility, is only possible by means of the inventive standstill monitoring.

The count of the axle counter sensors is communicated directly to storage means of the rail vehicle. To this end a simple radio system can be used for instance.

On account of the inventive solution, the performance increases for the initialisation of rail vehicles in park positions, for instance a vehicle depot, since after switching off the rail vehicle is located at a standstill and can be immediately transferred into fully monitored operation. In standstill the parked rail vehicle can be completely switched off so that the energy reguirement reduces and an immediately fully monitored operation is nevertheless possible after being switched back on.

Claims

1. A method of silent monitoring of rail vehicles having a tensile effect, wherein on the vehicle side is stored a signal technically safe stand position and signal technically sensor information for the relevant track vacancy section of at least one track vacancy device, characterized in that the sensor information to be stored comprises a current count of the axle. counter sensors, where the count is transmitted to the rail vehicle via a stretching device and stored and / or communicated directly to storage means of the rail vehicle.