EP1119483A1 - Train integrity monitoring device - Google Patents
Train integrity monitoring deviceInfo
- Publication number
- EP1119483A1 EP1119483A1 EP00907034A EP00907034A EP1119483A1 EP 1119483 A1 EP1119483 A1 EP 1119483A1 EP 00907034 A EP00907034 A EP 00907034A EP 00907034 A EP00907034 A EP 00907034A EP 1119483 A1 EP1119483 A1 EP 1119483A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- train
- operating parameters
- integrity
- sensor means
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 24
- 230000004044 response Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 40
- 238000012360 testing method Methods 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 12
- 238000000926 separation method Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006735 deficit Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
Definitions
- This application relates generally to a train integrity monitoring device and, in particular, to a monitoring device for detecting the integrity of a railroad train with consideration of operating parameters of the cars of the train.
- Important parts of equipment of a railroad train include the brake system with the pertinent control, as, when the train loads and the running speed of the trains are increased, higher requirements are to be made for the safe function of the brake system.
- train Important parts of equipment of a railroad train (hereinafter simply referred to as train) include the brake system with the pertinent control, as, when the train loads and the running speed of the trains are increased, higher requirements are to be made for the safe function of the brake system.
- the detection and monitoring of the integrity of the train is in close connection with the monitoring of the brake system, because both an interference of the brake system and an undesired separation of the train (undesired separation of at least one car from the rest of the train) may entail considerable troubles and dangerous operating situations.
- a compressor means for generating compressed air is provided on an engine (locomotive) for conveying the train, and all cars are connected via a continuous air pipe, the so-called brake pipe. Between the individual cars of the train an appropriate connection of the brake pipe is provided, apart from the mechanical coupling, to transfer the tractive forces.
- the air pressure in the brake pipe is lowered to generate a brake force by the individual wheel brakes of each car.
- the air pressure of the brake pipe has to be appropriately increased again.
- the instruction to actuate the brakes (braking operation) or to release the brakes is output at one location in the train, usually in the engine or in an adequately equipped control car, wherein the brake can basically be activated at any suitable location in the train, when the air pressure in the brake pipe is lowered ("emergency brake").
- Draht (89) 1 1 , 97 a system for train integrity monitoring is known in which predetermined operating parameters of the train are detected and monitored.
- the monitoring relates to the operating parameters of the brake such as the pressure of the compressed air of the brake and the amounts of air flowing in the brake system.
- appropriate means connected to each other for the transmission of data are provided at both ends of the train.
- FIG 2 such an arrangement is illustrated, wherein in an engine 1 including coupled cars 2 and 3 (last car) a compressor 4 is provided for supplying a brake pipe 5 passing through the entire train with compressed air.
- a monitoring means 6 arranged at the last car 3 of the train detects the air pressure of the brake pipe 5 and transmits a corresponding information concerning the data detected to a control means 7 arranged in the engine 1 for evaluation of the data and display of any irregularities or troubles.
- the control means 7 in the engine 1 in detail evaluates the detected actions of the engineer, the data formed in the engine itself as well as the data detected and transmitted by the monitoring means 6 at the end of the train.
- a wireless transmission in the form of an ultrasonic transmission or radio transmission is provided in the present prior art for transmitting the data from the monitoring means 6 at the end of the train to the control means 7 in the engine 1.
- transmitters and receivers corresponding to the selected transmission mode are provided at the end of the train and in the engine.
- a transmitter is provided and a receiver is provided in the engine 1.
- a line connection may be provided for data transmission from the monitoring means 6 at the end of the train to the control means 7 in the engine 1, the data transmission being effected by means of the usually multipolar transmission line (UIC line).
- UICC line usually multipolar transmission line
- a transmission system of this kind is not subjected to the interferences occurring in radio or ultrasonic links, but particular problems may arise at the link couplings of the lines between the individual cars, when the couplings have to be frequently disconnected and the contact safety of the multipolar line is impaired by dirt accumulation.
- Fiber-optical light guides can only be employed in a reasonable manner, if the predetermined train connection consisting of a plurality of cars is not or only very rarely separated, as in this case a dirt accumulation at the junction points is largely avoided (use in the case of ICE motor-coach trains of the Irish Bahn AG).
- the multipolar line or the glass-fiber connection also serves as data bus of the entire train.
- the use of the monitoring means 6 at the end of the train requires the possibility of supplying electric power to the monitoring means 6 to safeguard a continuous operation.
- an electric power supply is usually provided, because each car is supplied with electric power for lighting and heating from the engine by means of a bus bar passing through the entire train. This electric power supply can be used for feeding the monitoring means 6 disposed at the end of the train.
- freight trains are likewise to be included in the train integrity monitoring, then it is not possible to monitor the train integrity by means of continuous electric lines or glass-fiber connections, because freight cars are not equipped with the appropriate means and are used unrestrictedly in constantly changing trains.
- freight cars are not equipped with an electric power supply, as in normal operation only passenger cars include a power supply via the bus bar of the train or are equipped with an inherent power supply by a generator and a battery.
- stationary monitoring means in the form of axle counters here and there along particular portions of lines, which count the axles of a passing train and supply a corresponding information to a central control terminal.
- Stationary axle counters of this kind are only adapted to monitor the train integrity at particular locations in the line network of a railroad company so that, apart from considerable expenditure on equipment, the low flexibility of such means represents a drawback.
- safe train integrity monitoring is ensured in a simple manner with a considerably reduced expenditure on technical equipment even in the case of optionally composed trains and independently of the cars used in the train.
- At least one sensor means is provided in the train integrity monitoring means for detecting operating parameters of the cars involved such as the engine and the coupled passenger or freight cars.
- the sensor means is linked to the control means for transmitting the information generated by the sensor means to the control means.
- the control means executes the integrity monitoring of the train, the operating parameters detected by the sensor means being compared to predetermined values of such operating parameters and the integrity of the train being inferred in response to the result of comparison.
- the monitoring means and the detection of the operating parameters of the cars involved are provided exclusively at one end of the train, preferably in the engine at the front end of the train, so that the expenditure on technical equipment is considerably reduced, as no monitoring means in connection with transmitting and receiving means is necessary at the end of the train.
- the operating parameters detected by the sensor means are evaluated relative to predetermined values of such operating parameters so that a particular condition of the brake system of the train can be inferred from the comparison of the predetermined values with the currently measured values, on the basis of which furthermore the train integrity is determined.
- the device according to the invention can be used in any cars, if the respective sensors and the control means are arranged centrally in one car.
- the device according to the invention works reliable and the accuracy of detection is not deteriorated by deteriorated radio links or by impairments of a radio or ultrasonic link in a tunnel. Moreover the unrestricted use of the cars is guaranteed irrespective of whether passenger cars or freight cars are concerned.
- Figure 1 shows an arrangement of a train including a train integrity monitoring device disposed at one end of the train;
- Figure 2 shows a train arrangement including a train integrity monitoring device distributed to both ends of the train in accordance with prior art.
- FIG. 1 shows a train arrangement in which the train integrity monitoring device is used. Parts of the same kind are denoted with the same reference numerals in Figure 1 and in Figure 2.
- a brake pipe 5 is filled with compressed air by means of a compressor 4 disposed in an engine 1.
- the brake pipe 5 passes through the entire train from the engine 1 via coupled cars 2 to a last car 3.
- a sensor means 6 serving as monitoring means is provided as well as a control means 7 which is connected with the sensor means 6 and which receives and processes the data supplied by the sensor means 6.
- the entire train integrity monitoring device is disposed in one car of the train, preferably in the engine 1 as the first car, so that corresponding additional means such as further sensors at locations in the train, i.e. in other cars, can be dispensed with.
- additional means such as further sensors at locations in the train, i.e. in other cars.
- the control means 7 arranged in the engine 1 performs the integrity monitoring for the train on the basis of the sensor signals supplied by the sensor means 6 via the operating parameters of the engine 1 and the entire train.
- control means 7 processes, on the basis of the information supplied by the sensor means 6, all measures of the engineer such as, e.g., filling up the brake pipe 5 of the brake system of the train with compressed air, releasing the brake, various braking operations to decelerate the train or to further reduce the speed until the train stops, the driving speed of the train and the number of the coupled cars
- the air pressure prevailing in the brake pipe 5 When detecting the operating parameters, especially of the brake system of the train, the air pressure prevailing in the brake pipe 5, the air volume required for the entire train to release the brake, the air loss rate due to inevitable leakages of the brake system (especially of the compressed air couplings for connecting the brake pipe between the individual cars), the braking instructions given by the engineer and the respective times for lowering or increasing the air pressure of the brake pipe are detected.
- the operating parameters of the train detected during the stop or the ride of the train are compared to predetermined values of such operating parameters with respect to an evaluation for obtaining an information about the train integrity.
- the magnitude of deviations established from the comparison of the respective actually measured operating parameters of a particular operating condition to the predetermined values of such operating parameters of the same operating condition permits a statement about whether an undesired train separation, an interference of operation (impairment of operation) or a normal operation (trouble-free operation) is provided.
- a separation of the train causes, for instance, a break of the compressed air couplings of the brake pipe between the cars so that the air pressure of the brake pipe is falling very quickly.
- the control means 7 of the train integrity monitoring device is provided with the further information that the rapid stop was initiated by a measure taken by the engineer so that no undesired train separation is assumed.
- the compressor 4 arranged in the engine 1 is appropriately controlled to further supply the brake pipe with compressed air for reaching the air pressure necessary for a running operation.
- the air pressure is regulated to adopt the level required for the running operation.
- the predetermined values of the operating parameters are determined before by experiment or calculation taking corresponding operating conditions of the train (troublefree or disturbed operation) into account and are preferably stored in advance in the form of a data base or a map in the engine 1 in an appropriate memory, or there is a possibility of transmitting a complete and updated set of data from a stationary central control terminal to the control means 7 in the engine 1 .
- the values of the operating parameters stored in advance can furthermore be updated and/or corrected and supplemented by the engineer's respective input.
- the train integrity monitoring device As regards the operating parameters of the train and especially concerning the characteristic curves of applying and releasing the car brakes (times necessary for applying the brake system).
- the currently provided operating conditions of the train are included in the determination of the train integrity.
- this may relate, for instance, to the values of the running speed, the routing of the line to be used and the train weight. It is necessary to take the running speed of the train into consideration, because the braking characteristics (speed of reaction of the brakes and the extent of brake force) are influenced at least partially at the individual wheel brakes of the cars in response to the speed.
- the above-mentioned influencing factors can be taken into account in the predetermined values of the operating parameters in response to request so that the predetermined values of the operating parameters can be appropriately selected, adjusted or corrected for the given comparing operation and are used in connection with the engineer's instructions for applying or releasing the brake to determine the air flow volume and the air volume to be expected which has always to be supplied to the brake pipe.
- the train integrity is substantially determined on the basis of the air volume used during operation of the train for various braking operations.
- the brake pipe 5 of the entire train is filled up by means of the compressor 4 disposed in the engine 1 , and it is optically established by the train crew if all brakes of the train are connected, all cars of the train are properly linked to the brake pipe and all individual wheel brakes of the cars are released.
- the brake test serves especially for determining if the compressed air passes freely to the end of the train, if all brakes can thus be operated by the engineer and if the brakes of the individual cars are properly working.
- the control means 7 disposed in the engine 1 detects the air volume required for the entire train to release the brake and the air loss rate due to inevitable minor leakages.
- the brake test further includes activating the brakes, i.e. applying the brakes by appropriately reducing the air pressure in the brake pipe 5.
- the train crew optically checks if all brakes are properly applied. By this measure the control means 7 detects the speed of the pressure drop in the brake pipe 5 when a rapid stop is initiated.
- the train integrity monitoring device is provided with the respective updates so that the train integrity can be reliably determined in accordance with the changes of the air pressure detected in the brake pipe and the compressed air supplied and discharged.
- the real operating parameters detected during a stop of the train serve as a basis of the train integrity determination when the train is running and form the processing basis for data processing operations as performed by the control means 7 disposed in the engine 1.
- the current values can be detected continuously or else at short time intervals, the respective time intervals being determined in response to the operating condition of the train, especially in response to the running speed.
- the train integrity monitoring device is preferably arranged in the first car of the train, i.e. in the engine 1.
- the present inventive embodiment is not restricted hereto, however, as the components of the train integrity monitoring device may also be arranged in a car which is disposed directly behind the engine, if such car is equipped with an appropriate electric power supply and is linked with the engine for data transmission advantageously through an electric line.
- Such an arrangement of the train integrity monitoring device in a car of the train, preferably in the engine 1 can also be used, if the type of train is a reversible train in which the engine is not arranged at the beginning of the train but at any location in the train or at the end of the train.
- reversible trains serve for changing the running direction without removing the engine in a terminal station so that in the case of a reversible train also very often the situation occurs that the engine is arranged at the front end of the train.
- the train integrity monitoring device may also be incorporated in a vehicle control system and transmit, upon request or at predetermined time intervals, results of detection regarding the train integrity to a central control terminal for the route determination, for instance by means of a radio transmission line.
- the train integrity monitoring device offers the advantage for the operating sequence that the train integrity can be detected in a simple manner and with low expenditure on technical equipment, wherein the train can be dispatched relatively quickly especially after a marshalling of freight cars on a marshalling yard.
- the train integrity monitoring device entails operational advantages in connection with freight trains in which the individual cars are constantly newly marshalled.
- the execution of the brake test for calibrating the train integrity monitoring device and for detecting the basic operating parameters of the respective train constitutes no operational drawback, because the brake test has to be performed before departure in each case in the described manner for each train independently of its marshalling irrespective of a train integrity monitoring or any further measures.
- no expensive monitoring means have to be provided for arrangement at the end of the train and the possible troubles connected therewith when the train passes a tunnel are avoided.
- the train integrity monitoring device is adapted, in the event of subsequent changes of the brake system in a predetermined train marshalling, for instance if, due to a faulty action, a part of the cars is no longer connected to the brake pipe and thus cannot be braked any more, to identify this fault, because all basic data (initial values of the operating parameters) for the particular train marshalling were collected during the indispensable brake test before departure of the train and the original number of cars of the train was entered into the control means 7.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Alcoholic Beverages (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Alarm Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902777 | 1999-01-25 | ||
DE19902777A DE19902777A1 (en) | 1999-01-25 | 1999-01-25 | Train integrity monitoring arrangement compares operating parameters detected by sensor with predefined values to draw conclusion re integrity or completeness of train |
PCT/US2000/001914 WO2000043249A1 (en) | 1999-01-25 | 2000-01-25 | Train integrity monitoring device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1119483A1 true EP1119483A1 (en) | 2001-08-01 |
EP1119483B1 EP1119483B1 (en) | 2006-11-29 |
Family
ID=7895271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00907034A Expired - Lifetime EP1119483B1 (en) | 1999-01-25 | 2000-01-25 | Train integrity monitoring device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1119483B1 (en) |
AT (1) | ATE346783T1 (en) |
AU (1) | AU2859900A (en) |
DE (2) | DE19902777A1 (en) |
WO (1) | WO2000043249A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9227639B1 (en) | 2014-07-09 | 2016-01-05 | General Electric Company | System and method for decoupling a vehicle system |
DE102017204443A1 (en) | 2017-03-16 | 2018-09-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | train-monitoring system |
GB2572993A (en) * | 2018-04-19 | 2019-10-23 | Siemens Rail Automation Holdings Ltd | Rail safety method and apparatus |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT413973B (en) * | 2003-01-14 | 2006-07-15 | Joanneum Res Forschungsgesells | METHOD AND DEVICE FOR MONITORING ACCESSIBILITY |
US20050121971A1 (en) * | 2003-12-05 | 2005-06-09 | Ring Michael E. | Serial train communication system |
DE102006005207B4 (en) * | 2006-02-02 | 2007-10-18 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for on-board monitoring of train completion |
DE102006005206B3 (en) * | 2006-02-02 | 2007-09-13 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | System to monitor the integrity of couplings in a railway train rake, while traveling, has sensors at the couplings linked to a monitor unit with a data store to ensure that they are functioning |
DE102007019137B4 (en) | 2007-04-20 | 2009-11-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device and method for monitoring a rail-bound vehicle association |
DE102010011949A1 (en) * | 2010-03-18 | 2011-09-22 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method and apparatus for train length detection |
AU2015202191B2 (en) * | 2010-03-18 | 2016-04-28 | Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh | Method and device for train length detection |
DE102012009348A1 (en) * | 2012-05-09 | 2013-11-14 | Db Schenker Rail Deutschland Ag | Method and device for acquiring and evaluating data relating to the condition of the main air line of a vehicle association |
DE102017113893B4 (en) * | 2017-06-22 | 2021-08-12 | nubix Software-Design GmbH | Method for testing a fluid power system, fluid power system with a test device, network with such a fluid power system and method for testing such a network |
CN115402376A (en) * | 2022-08-30 | 2022-11-29 | 通号城市轨道交通技术有限公司 | Train integrity detection method and device |
EP4357208A1 (en) * | 2022-10-17 | 2024-04-24 | Progress Rail Signaling S.p.A. | Method of detecting accidental decoupling of a train and data acquisition unit |
DE102023200761A1 (en) | 2023-01-31 | 2024-08-01 | Siemens Mobility GmbH | Method and device for generating a status signal indicating a status of a vehicle |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4946229A (en) * | 1988-08-15 | 1990-08-07 | Harris Corporation | Adaptive air brake control system |
US5747685A (en) * | 1995-07-20 | 1998-05-05 | Westinghouse Air Brake Company | Automated terminal test procedure |
US5744707A (en) * | 1996-02-15 | 1998-04-28 | Westinghouse Air Brake Company | Train brake performance monitor |
DE19711772C1 (en) * | 1997-03-21 | 1998-08-06 | Daimler Benz Ag | Test device for checking completeness of multi-wagon transport forms, mainly rail based |
-
1999
- 1999-01-25 DE DE19902777A patent/DE19902777A1/en not_active Withdrawn
-
2000
- 2000-01-25 EP EP00907034A patent/EP1119483B1/en not_active Expired - Lifetime
- 2000-01-25 DE DE60032112T patent/DE60032112T2/en not_active Expired - Lifetime
- 2000-01-25 AT AT00907034T patent/ATE346783T1/en not_active IP Right Cessation
- 2000-01-25 AU AU28599/00A patent/AU2859900A/en not_active Abandoned
- 2000-01-25 WO PCT/US2000/001914 patent/WO2000043249A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0043249A1 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9227639B1 (en) | 2014-07-09 | 2016-01-05 | General Electric Company | System and method for decoupling a vehicle system |
DE102017204443A1 (en) | 2017-03-16 | 2018-09-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | train-monitoring system |
DE102017204443B4 (en) | 2017-03-16 | 2022-10-27 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | train monitoring system |
GB2572993A (en) * | 2018-04-19 | 2019-10-23 | Siemens Rail Automation Holdings Ltd | Rail safety method and apparatus |
GB2572993B (en) * | 2018-04-19 | 2021-02-17 | Siemens Mobility Ltd | Rail safety method and apparatus |
Also Published As
Publication number | Publication date |
---|---|
AU2859900A (en) | 2000-08-07 |
DE60032112D1 (en) | 2007-01-11 |
ATE346783T1 (en) | 2006-12-15 |
WO2000043249A1 (en) | 2000-07-27 |
DE19902777A1 (en) | 2000-07-27 |
EP1119483B1 (en) | 2006-11-29 |
DE60032112T2 (en) | 2007-06-28 |
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