WO2003048710A1 - Systeme de determination automatique de caracteristiques de freinage d'urgence d'un vehicule de transport en commun, notamment ferroviaire - Google Patents
Systeme de determination automatique de caracteristiques de freinage d'urgence d'un vehicule de transport en commun, notamment ferroviaire Download PDFInfo
- Publication number
- WO2003048710A1 WO2003048710A1 PCT/FR2002/004158 FR0204158W WO03048710A1 WO 2003048710 A1 WO2003048710 A1 WO 2003048710A1 FR 0204158 W FR0204158 W FR 0204158W WO 03048710 A1 WO03048710 A1 WO 03048710A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- information
- braking
- deceleration
- time
- Prior art date
Links
- 230000004913 activation Effects 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 30
- 238000009499 grossing Methods 0.000 claims description 8
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000010365 information processing Effects 0.000 description 12
- 238000012937 correction Methods 0.000 description 7
- 239000003550 marker Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000013500 data storage Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
- G01L5/284—Measuring braking-time or braking distance
-
- 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
- B61L15/0062—On-board target speed calculation or supervision
Definitions
- the present invention relates to a system for automatically determining the emergency braking characteristics of a public transport vehicle, in particular a rail vehicle. We know that in this area of activity, passenger safety is a constant concern.
- these transport vehicles must have predetermined emergency braking characteristics.
- a test base is then marked by two remarkable physical markers which delimit a predetermined maximum stopping distance which the vehicle must respect when braking. This maximum distance is also called the "acceptability threshold".
- the vehicle is then brought to move in this test base at its nominal speed.
- Two operators are on board this vehicle, one driving the vehicle and the other monitoring the passage of the vehicle in front of the first marker, to warn the driver so that when the vehicle passes in front of this marker, this driver triggers the braking of vehicle emergency by activating corresponding triggering means in order to actuate the braking means thereof.
- the braking is then maintained until the vehicle comes to a complete stop.
- a mechanical type accelerometer can be taken on board the vehicle in order to deliver information relating to the instantaneous deceleration of the vehicle during this phase. Once the vehicle has stopped, the operator checks the place where the vehicle stopped and in particular, its relative position with respect to the second marker.
- the operator measures the distance between the vehicle and this second marker, to deduce the distance from it. vehicle stopped since the distance between the two marks is known.
- Various operations are then carried out manually by this operator, who may have to make corrections to the calculated stopping distance to take account in particular of the configuration of the terrain of the test base.
- the calculated and possibly corrected stopping distance is also compared by the operator to a predetermined acceptability threshold for the vehicle concerned and the test base concerned, in order to determine whether or not the vehicle has braking malfunction.
- the operator also analyzes the shape of the deceleration curve and in particular the brake rise and release times.
- the stopping distance is measured and calculated manually by an operator.
- the subject of the invention is a system for automatically determining the emergency braking characteristics of a public transport vehicle, in particular a rail vehicle, comprising means for measuring the speed of the vehicle, means for measurement of the distance traveled by the latter, and of means for triggering an emergency braking of the vehicle for actuating the braking means of the latter, characterized in that it comprises means for detecting activation means for initiating the emergency braking of the vehicle and means for detecting the stopping of the vehicle, adapted to activate / deactivate the operation of means for acquiring information of speed and distance traveled by the vehicle during the period of time elapsing between the activation of the means for initiating the emergency braking and the stopping of the vehicle, and means for analyzing this information to deliver at least distance information pa used by the vehicle during this period.
- the analysis means are adapted to further deliver information on instantaneous deceleration of the vehicle during this period of time;
- the analysis means are adapted to further deliver response time information from the vehicle braking means, following the activation of the emergency braking triggering means;
- the analysis means are adapted to deliver the or each braking characteristic in real time
- the analysis means are adapted to deliver the or each characteristic in deferred time
- the analysis means include means for correcting the information on the distance traveled by the vehicle determined from the information messages delivered by the acquisition means, to take account of the reaction time of these acquisition means;
- the analysis means include means for smoothing the deceleration information of the vehicle; the smoothing means include filtering means with a sliding time window;
- the analysis means comprise means for comparing the or each braking characteristic delivered with predetermined corresponding data or predetermined test conditions, a predetermined type of vehicle, and a predetermined test site configuration, these data being stored in storage means associated with the analysis means.
- - Fig.1 shows a block diagram illustrating the general structure of a determination system according to the invention
- - Fig.2 shows a flowchart illustrating an information acquisition phase implemented in a determination system according to the invention
- - Fig.3 shows a flowchart illustrating an information analysis phase implemented in a system according to the invention
- - Fig.4 shows an instantaneous deceleration curve of a train to illustrate the calculation of a response time of the braking means thereof;
- - Figs.5 and 6 show instantaneous deceleration curves before (Fig.5) and after (Fig.6) smoothing of the corresponding information; and - Fig.7 shows an example of presentation of the results of a vehicle test.
- FIG. 1 shows a system for automatically determining the emergency braking characteristics of a public transport vehicle, in particular a rail vehicle.
- such a vehicle comprises means for measuring the speed of this vehicle, designated by the general reference 1, means 2 for measuring the distance traveled by it and means 3 for initiating braking d vehicle emergency to activate the braking means thereof, designated by the general reference 4.
- the speed measurement means comprise for example a speedometer
- the distance traveled measurement means comprise for example an odometer
- the triggering means comprise for example an emergency braking button actuable by the driver of the vehicle, classic way.
- first information processing unit designated by the general reference 5 and comprising for example any suitable computer, designated by the general reference 6, associated with data storage means designated by the general reference 7.
- This information processing unit 5 is also associated with means, designated by the general reference 8, for transmitting information to a tool designated by the general reference 9.
- the information processing unit 5 is associated with interface means designated by the general reference 10, between this unit and any data transmission link designated by the general reference 11.
- the tool 9 also includes corresponding interface means 12 associated with means 13 forming an input buffer, also connected to a second information processing unit designated by the general reference 14.
- This information processing unit 14 also includes, for example, any suitable computer designated by the general reference 15, associated with data storage means designated by the general reference 16, with user interface means designated by the general reference 17 and comprising, for example in a conventional manner , information display means and information input means by this user
- printer designated by the general reference 18 can be associated with this information processing unit 14.
- this information processing unit 14 can also be associated with means 19 for storing test base configuration information, vehicle and predetermined test data, which will be described in more detail below.
- the system described comprises means for detecting the activation of the means 3 for triggering the emergency braking of the vehicle and means for detecting the stopping of the latter, which are adapted to activate / deactivate the operation of means for acquiring speed and distance information traveled by the vehicle during the period of time elapsing between this activation of the triggering means and the stopping of the vehicle and means for analyzing this information for issue at least information on the distance traveled by the vehicle during this period.
- the detection of the activation of the means for triggering the emergency braking of the vehicle designated by the general reference 3 in this FIG.
- the information processing unit 5 which on the one hand, actuates the braking means 4 thereof and on the other hand, activates the operation of the means for acquiring information of speed and distance traveled, delivered by the corresponding means 1 and 2, these means acquisition being for example formed by the tool 9.
- This information is in fact transmitted for example by the information processing unit 5 to this tool 9, using the information transmission means 8 described above.
- the corresponding information is then received in the input buffer means 13 of the unit 14, then possibly stored in the data storage means 16 before processing.
- This unit 14 of the tool 9 is in fact adapted to deliver information of the vehicle's emergency braking characteristics, as will be described in more detail below, from information coming from the processing unit. 5.
- This acquisition phase begins with a step designated by the general reference 20 during which the unit, for example 5, monitors the actuation of the means 3 for triggering the emergency braking of the vehicle.
- the vehicle speed and distance traveled information are acquired during step 21, for example by the unit 14.
- the analysis means formed by the tool 9 can also be adapted to further deliver information on instantaneous deceleration of the vehicle during this period of time. This is then calculated from the information available, by the processing unit 14.
- these analysis means can be adapted to further deliver response time information from the vehicle braking means, following the activation of the emergency braking triggering means.
- this response time will be described in more detail below.
- these analysis means can be adapted to deliver the or each braking characteristic of the vehicle in real time or in deferred time.
- This flowchart begins with a phase 23 of determining or calculating the corresponding information, that is to say distance traveled, instantaneous deceleration and / or response time of the braking means, from the information acquired.
- the information processing unit 14 can be brought to acquire information relating to the configuration of the terrain of the test base, to make during step 25, corrections to the determined values or calculated, as will be described in more detail later.
- This information relating to the configuration of the test base is for example stored in the means 19 associated with the unit 14.
- step 26 the information processing unit 14 can be led to acquire information relating to predetermined corresponding values, of braking characteristics, stored for example also in these means 19. This then allows for example to the processing unit 14 during the step
- the analysis means also comprise, as indicated above, means making it possible to deliver information on the response time of the braking means following the activation of the means for triggering emergency braking. This is illustrated for example in FIG. 4, where an instantaneous deceleration curve of a train has been shown.
- the value of the deceleration in steady state can then be the arithmetic mean of the points measured in nominal mode.
- a calculation other than that described above can be envisaged for this response time.
- the cyclic operation of computers can also lead, when the operating frequency of these is low, to significant when determining the deceleration of the vehicle from one computer cycle to another.
- the analysis means can comprise means for smoothing the deceleration information of the vehicle and these smoothing means can for example comprise filtering means with a sliding time window in a conventional manner. This then makes it possible to smooth the deceleration curve as illustrated in FIG. 6.
- results delivered during the test for example of a particular vehicle, on a particular test basis and under particular conditions, can be compared with predetermined corresponding information, stored for example in the means 19, as has been previously described.
- These storage means 19 then contain predetermined test information for predetermined elements. It may then be necessary to make different corrections to the values delivered to allow a coherent comparison between these braking characteristics delivered by the analysis means described above, to predetermined corresponding data for predetermined test conditions, a predetermined type of vehicle. and a predetermined test site configuration.
- the instantaneous deceleration curve as noted this curve being designated by the general reference 29 in this figure, various information relating to the test conditions, such as for example the weather conditions, the speed, etc. , information relating to the vehicle tested, the response time information te designated by the general reference 30 in this figure, measured stopping distance information, designated by the general reference 31 and possibly corrected, designated by the general reference 32, in accordance with what has been described above and various other information making it possible to check that the vehicle and in particular the braking means thereof, is functioning correctly.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0215103-0A BR0215103A (pt) | 2001-12-07 | 2002-12-03 | Sistema de determinação automática de caracterìsticas de frenagem de emegência |
MXPA04005448A MXPA04005448A (es) | 2001-12-07 | 2002-12-03 | SISTEMA DE DETERMINACION AUTOMáTICA DE CARACTERISTICAS DE FRENADO DE EMERGENCIA DE UN VEHICULO DE TRANSPORTE COMUN, PARTICULARMENTE DE FERROCARRIL. |
EP02796895A EP1451545A1 (fr) | 2001-12-07 | 2002-12-03 | Systeme de determination automatique de caracteristiques de freinages d'urgence d'un vehicule de transport en commun, notamment ferroviaire |
US10/497,799 US7412312B2 (en) | 2001-12-07 | 2002-12-03 | System for automatically determining a public transport vehicle emergency braking characteristics, in particular of a railway vehicle |
CA002468974A CA2468974C (fr) | 2001-12-07 | 2002-12-03 | Systeme de determination automatique de caracteristiques de freinage d'urgence d'un vehicule de transport en commun, notamment ferroviaire |
AU2002361365A AU2002361365A1 (en) | 2001-12-07 | 2002-12-03 | System for automatically determining a public transport vehicle emergency braking characteristics, in particular of a railway vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0115875A FR2833350B1 (fr) | 2001-12-07 | 2001-12-07 | Systeme de determination automatique de caracteristiques de freinage d'urgence d'un vehicule de transport en commun, notamment ferroviaire |
FR01/15875 | 2001-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003048710A1 true WO2003048710A1 (fr) | 2003-06-12 |
Family
ID=8870246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/004158 WO2003048710A1 (fr) | 2001-12-07 | 2002-12-03 | Systeme de determination automatique de caracteristiques de freinage d'urgence d'un vehicule de transport en commun, notamment ferroviaire |
Country Status (9)
Country | Link |
---|---|
US (1) | US7412312B2 (fr) |
EP (1) | EP1451545A1 (fr) |
CN (1) | CN1330951C (fr) |
AU (1) | AU2002361365A1 (fr) |
BR (1) | BR0215103A (fr) |
CA (1) | CA2468974C (fr) |
FR (1) | FR2833350B1 (fr) |
MX (1) | MXPA04005448A (fr) |
WO (1) | WO2003048710A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111791852A (zh) * | 2019-04-02 | 2020-10-20 | 克诺尔商用车制动***有限公司 | 用于控制自动的紧急制动***的方法和控制设备 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130151041A1 (en) * | 2007-02-12 | 2013-06-13 | Tom Otsubo | Method and system for operating a locomotive |
US20080195351A1 (en) * | 2007-02-12 | 2008-08-14 | Tom Otsubo | Method and system for operating a locomotive |
US8626385B2 (en) | 2012-03-15 | 2014-01-07 | Caterpillar Inc. | Systems and methods for analyzing machine performance |
CN104765355A (zh) * | 2015-02-04 | 2015-07-08 | 南车株洲电力机车有限公司 | 一种失电紧急环路制动柜的试验装置 |
AU2017207434B2 (en) * | 2016-01-15 | 2019-11-14 | New York Air Brake, LLC | Train brake safety monitoring and fault action system with PTC brake performance assurance |
US10279823B2 (en) * | 2016-08-08 | 2019-05-07 | General Electric Company | System for controlling or monitoring a vehicle system along a route |
CN106525467A (zh) * | 2016-10-19 | 2017-03-22 | 中车长春轨道客车股份有限公司 | 轨道车辆测试场地用紧急停车控制方法 |
US20190054941A1 (en) * | 2017-08-17 | 2019-02-21 | Robert Hydro | Inspection System for Amusement Rides Having Tracks |
CN110531264B (zh) * | 2019-09-27 | 2022-02-15 | 王磊 | 制动器性能参数检测方法、检测装置及故障预警方法 |
CN112903313B (zh) * | 2021-02-05 | 2023-08-11 | 中汽院(重庆)汽车检测有限公司 | 重型汽车制动***稳定性试验方法 |
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CH410467A (fr) * | 1963-12-05 | 1966-03-31 | Rouiller Charles | Dispositif comprenant un coulisseau soumis à un ressort de poussée et un mécanisme pour libérer ce coulisseau |
FR2112212A1 (fr) * | 1970-09-29 | 1972-06-16 | Bendix Corp | |
US5744707A (en) * | 1996-02-15 | 1998-04-28 | Westinghouse Air Brake Company | Train brake performance monitor |
US6112166A (en) * | 1997-10-31 | 2000-08-29 | Digimetrix, Inc. | Portable measurement tool and method for escalators and moving walks |
Family Cites Families (9)
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US5815823A (en) * | 1996-12-23 | 1998-09-29 | Westinghouse Air Brake Company | Microprocessor controlled railway car accounting and communication system |
US6014600A (en) * | 1997-09-02 | 2000-01-11 | Westinghouse Air Brake Company | Emergency brake readback hardware and fault diagnostics routine |
WO2001027897A2 (fr) * | 1999-10-11 | 2001-04-19 | Last Mile Communications/Tivis Limited | Systeme d'informations |
US6434456B1 (en) * | 2000-09-07 | 2002-08-13 | Kelsey-Hayes Company | High reliability pressure sensor |
DE10140615C1 (de) * | 2001-08-18 | 2002-11-21 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erkennung eines abgelösten Reifens |
JP3986939B2 (ja) * | 2002-10-25 | 2007-10-03 | 本田技研工業株式会社 | 車両用ブレーキ装置 |
US7467035B2 (en) * | 2004-05-18 | 2008-12-16 | Haldex Brake Products Ltd. | Vehicle control system with redundant storage of vehicle control parameters |
JP4632093B2 (ja) * | 2006-06-07 | 2011-02-16 | 株式会社ジェイテクト | 車両用操舵装置 |
JP4725796B2 (ja) * | 2006-06-13 | 2011-07-13 | 株式会社ジェイテクト | 車両用操舵装置 |
-
2001
- 2001-12-07 FR FR0115875A patent/FR2833350B1/fr not_active Expired - Fee Related
-
2002
- 2002-12-03 CN CNB02826830XA patent/CN1330951C/zh not_active Expired - Fee Related
- 2002-12-03 MX MXPA04005448A patent/MXPA04005448A/es active IP Right Grant
- 2002-12-03 CA CA002468974A patent/CA2468974C/fr not_active Expired - Fee Related
- 2002-12-03 WO PCT/FR2002/004158 patent/WO2003048710A1/fr not_active Application Discontinuation
- 2002-12-03 EP EP02796895A patent/EP1451545A1/fr not_active Withdrawn
- 2002-12-03 US US10/497,799 patent/US7412312B2/en not_active Expired - Fee Related
- 2002-12-03 AU AU2002361365A patent/AU2002361365A1/en not_active Abandoned
- 2002-12-03 BR BR0215103-0A patent/BR0215103A/pt not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE500130A (fr) * | ||||
CH410467A (fr) * | 1963-12-05 | 1966-03-31 | Rouiller Charles | Dispositif comprenant un coulisseau soumis à un ressort de poussée et un mécanisme pour libérer ce coulisseau |
FR2112212A1 (fr) * | 1970-09-29 | 1972-06-16 | Bendix Corp | |
US5744707A (en) * | 1996-02-15 | 1998-04-28 | Westinghouse Air Brake Company | Train brake performance monitor |
US6112166A (en) * | 1997-10-31 | 2000-08-29 | Digimetrix, Inc. | Portable measurement tool and method for escalators and moving walks |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111791852A (zh) * | 2019-04-02 | 2020-10-20 | 克诺尔商用车制动***有限公司 | 用于控制自动的紧急制动***的方法和控制设备 |
Also Published As
Publication number | Publication date |
---|---|
CA2468974C (fr) | 2009-08-11 |
EP1451545A1 (fr) | 2004-09-01 |
CA2468974A1 (fr) | 2003-06-12 |
MXPA04005448A (es) | 2005-03-23 |
FR2833350A1 (fr) | 2003-06-13 |
BR0215103A (pt) | 2004-11-03 |
CN1330951C (zh) | 2007-08-08 |
US20050065677A1 (en) | 2005-03-24 |
US7412312B2 (en) | 2008-08-12 |
CN1613005A (zh) | 2005-05-04 |
FR2833350B1 (fr) | 2004-03-19 |
AU2002361365A1 (en) | 2003-06-17 |
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