EP0410943A2 - Ausrüstung zur Steuerung der Bewegung von unabhängigen, mit Motor angetriebenen Fahrzeugen längs einer Lauflinie - Google Patents

Ausrüstung zur Steuerung der Bewegung von unabhängigen, mit Motor angetriebenen Fahrzeugen längs einer Lauflinie Download PDF

Info

Publication number
EP0410943A2
EP0410943A2 EP90830332A EP90830332A EP0410943A2 EP 0410943 A2 EP0410943 A2 EP 0410943A2 EP 90830332 A EP90830332 A EP 90830332A EP 90830332 A EP90830332 A EP 90830332A EP 0410943 A2 EP0410943 A2 EP 0410943A2
Authority
EP
European Patent Office
Prior art keywords
current
board
motor
line
control
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.)
Withdrawn
Application number
EP90830332A
Other languages
English (en)
French (fr)
Other versions
EP0410943A3 (en
Inventor
Giancarlo Perissinotto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIVISIONE ELCO Srl
Original Assignee
DIVISIONE ELCO Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DIVISIONE ELCO Srl filed Critical DIVISIONE ELCO Srl
Publication of EP0410943A2 publication Critical patent/EP0410943A2/de
Publication of EP0410943A3 publication Critical patent/EP0410943A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/18—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/14—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control to cut-off the power supply to traction motors of electrically-propelled vehicles

Definitions

  • the present invention relates to control equipment for controlling the movement of independent, motor-driven vehicles along a line of travel, according to the introduction to Claim 1.
  • the invention has been developed for application to the control of conveyor carriages for an overhead conveyor system of the monorail type, but its application also extends to other systems, whether overhead or on the ground.
  • This known equipment makes use of the principle whereby a current which alternates sinusoidally may easily be split up, from the whole wave, into a positive half-wave and a negative half-wave.
  • a control bar With the use of a control bar, this enables vehicles to be controlled so as to move at one or two speeds and to stop, and the presence of a vehicle on a following section of line to be signalled to stop a vehicle which is reaching a preceding section of line.
  • This latter function also enables vehicles to be accumulated at a distance.
  • a further disadvantage of the known device is that the system for discriminating between the three pulsed sine wave signals, although being fairly simple, does however involve an electronic logic reading circuit with associated costs. - Finally, the known equipment does not offer any means of allowing the current collector system of one vehicle to be replaced without loss of the signal indicating the presence of that vehicle, and hence loss of safety in the system.
  • the object of the invention is to provide equipment of the type under consideration, which does not have the said disadvantages and, by virtue of its simplicity, is cheaper than the known equipment considered above.
  • the operating principle of the equipment of the present invention starts from the assumption of the use of the three reference phases of the three-phase alternating current and the exchange, according to need, of the reference phase on the fourth current collector which is suitably sectioned, that is on the segments of the control bar.
  • the operating principle of the equipment of the present invention starts from the assumption of the use of the three reference phases of the three-phase alternating current and the exchange, according to need, of the reference phase on the fourth current collector which is suitably sectioned, that is on the segments of the control bar.
  • a first advantage of the invention is that the three basic signals required for controlling the movement of the vehicles can be obtained without the use of electronic discriminatory circuits. Since only the closure of the three separate circuits need be detected, simple microrelays or other current detectors are needed for this purpose. The result is that maximum reliability can be achieved with a considerable reduction in the costs of production and performance of the system.
  • a further advantage of the invention is the fact that, in normal operation, the equipment interacts continuously with the three power phases so that their presence is always controlled. Should one of the current collectors of a vehicle break or even simply lose contact, the vehicle is stopped automatically but the presence of a vehicle which has broken down continues to be signalled, causing the stoppage of the following vehicles so as to avoid collisions.
  • Yet another advantage of the invention is that the equipment signals the presence of a vehicle which has broken down not only when one of the collectors has a fault but also when all of these collectors are faulty.
  • the upper part of the drawing shows three electrical power supply bars R, S and T of a travel line, such as a monorail. Each of these bars corresponds to one of the phases, also termed R, S and T, of a current which alternates at the usual frequency of 50Hz and preferably at a low tension, such as 40 volts.
  • the line also includes a control bar, generally indicated U, which runs parallel to the power bars R, S, T and is divided into segments U1, U2, U3... which are insulated from each other. These segments may have a length of several metres but not such as to be engaged by more than one vehicle at a time.
  • the segments of the control bar U correspond to an equal number of line sections or portions, three of which are shown at I, II and III in the lower part of the drawing.
  • the lower part of the drawing also shows three virtual bars R, S and T which are none other than conductors connected to the bars proper of the travel line.
  • V1, V2 and V3 represent symbolically three independent, motor-driven vehicles such as, for example, carriages of a monorail conveyor system.
  • the direction of travel of the vehicles is indicated by the arrow M. It is supposed that the vehicles V1, V2 and V3 occupy the sections I, II and III respectively.
  • Each vehicle has its own three-phase electric motor such as a conventional pole-switching rotary motor.
  • the motors could, however, be of a different type, such as, for example, the movable stator of a linear motor whose fixed rotor is carried by, or constituted by, the line of travel.
  • the motor of each vehicle receives its power supply from the bars R, S, T through respective sliding shoes or like current collectors P R , P S , P T .
  • Each vehicle also has a sliding shoe or like current collector P U which engages the successive segments of the control bar U.
  • the current collectors P R , P S , P T are connected to the current collector P U by means of an on-board circuit which includes three branches L A , L B , L C .
  • Each of these branches incorporates respective on-board control means A, B, C and a respective diode or rectifier Z in series with each other.
  • These rectifiers Z are all oriented in the same sense so as to avoid short-circuiting between the three phases R, S, T conveyed in the same conductor.
  • the on-board control means A, B, C are sensitive to the passage of current in their respective branches L A , L B , L C . They may, for example, be relay windings. Alternatively they may be simple resistors the ends of which may supply a voltage.
  • control means A, B and C are arranged so as to control the circuit which supplies the motor of the respective vehicle in such a manner as to make it operate at first and second speeds, through the switching of poles, as well as to cause its stoppage.
  • This circuit has not been shown since it is within the capability of an expert in the art.
  • the current detectors A, B, C are associated with a logic such as to fulfil the following functions:
  • Each line section I, II and III etc, includes a circuit which interconnects the respective segment U1, U2, U3 of the control bar U with the three phases R, S, T indicated in the lower part of the drawing.
  • the line circuit includes a portion L D including a block relay RB of which more will be said below.
  • the conductor L D branches into three parallel branches L E , L F and L G .
  • the arms L E and L F are connected to the phases R and S respectively each with the interposition of a respective switch SW1, SW2 and a respective diode D in series.
  • the branch L G includes an auxiliary contact C1 which is normally open and which forms part of the block relay RB of the next section with reference to the direction of motion M along the travel line.
  • the contact C1 of the section II forms part of the block relay RB of the section I.
  • the branch L G again branches into two sub-branches L H and L I , each with a rectifier or diode D similar to the preceding ones.
  • All the line diodes or rectifiers D are oriented in the opposite sense from those of the on-board rectifier Z. Their function is again that of avoiding short-circuiting between the phases R, S, T.
  • the branches L E and L H terminate at the phase R and the arms L F and L I terminate at the phase S.
  • Each section I, II, and III includes a second relay RT, called a transition relay, the function of which will be clarified below.
  • the transition relay RT has an auxiliary contact C2 which is normally closed. This is of the type in which, when its winding is conducting, the contact C2 opens temporarily only to close after a very short period of time.
  • the contact C2 is in series with an auxiliary contact C3 which is normally open and which forms part of the block relay RB of the same section I, II or III.
  • This series arrangment is in a line L J which connects the phase T to the respective segment U1, U2 or U3 of the control bar U.
  • the supply for the winding of the security relay RT is taken from the phases R and T through a line L K .
  • This line L K incorporates a further auxiliary contact C4 which is normally open and which forms part of the block relay RB of the subsequent section.
  • the contact C4 of the section II forms part of the block relay RB of the section I.
  • the switches SW1 and SW2 may be manual switches situated on a control panel or switches which are controlled by a control processor for the line. These serve as switching means for setting the states of movement and stoppage of the vehicles in the respective section of the line.
  • the block relay RB of the section I signals the presence of the vehicle V1 in the section I to the section II.
  • the automatic holding of the block relay RB by virtue of the closure of the contact C3, signals this presence even if no current is passing through the segment U1 and the phase R, for example because of a breakdown in one or more of the current collectors P R , P S , P T , P U .
  • transition relay RT When the vehicle V1 enters the section I from the section II with the resultant energisation of the block relay RB, the latter's auxiliary contact C4, which is in the preceding section II, closes, energising the transition relay RT of this same section II. This causes the temporary opening of the auxiliary contact C2 with the interruption of the automatic holding of the block relay RB of the section II which had been caused by the arrival of the vehicle V1 in the section II.
  • the section II is predisposed to receive a moving vehicle, such as V2, from the section III.
  • the vehicle V2 continues at the second speed into the section II. If, however, the vehicle V1 is still present in the section I, the auxiliary contact C1 in the section II is closed and the vehicle V2 stops and remains stationary until the vehicle V1 has freed the section I.
  • the drawing shows a succession of three circuits of the line with their switching means.
  • circuits of this type can conveniently be formed on a single printed circuit board.
  • a board of this type could, alternatively, include only a single circuit or more than three circuits.
  • the entire line of the device could be formed as a battery of boards all interconnected like the circuits illustrated and including as many circuits as the number of sections into which the plant is divided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
EP19900830332 1989-07-26 1990-07-17 Equipment for controlling the movement of independent, motor-driven vehicles along a line of travel Withdrawn EP0410943A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8967633A IT1232423B (it) 1989-07-26 1989-07-26 Dispositivo di controllo della marcia di veicoli automotori indipen denti lungo una linea di movimentazione
IT6763389 1989-07-26

Publications (2)

Publication Number Publication Date
EP0410943A2 true EP0410943A2 (de) 1991-01-30
EP0410943A3 EP0410943A3 (en) 1991-07-17

Family

ID=11304076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900830332 Withdrawn EP0410943A3 (en) 1989-07-26 1990-07-17 Equipment for controlling the movement of independent, motor-driven vehicles along a line of travel

Country Status (2)

Country Link
EP (1) EP0410943A3 (de)
IT (1) IT1232423B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5721297A (en) * 1989-02-03 1998-02-24 Rhone-Poulenc Chimie Piperidyl organosiloxanes and polymer substrates light-stabilized therewith

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332101A1 (de) * 1983-09-02 1985-03-21 Siemens AG, 1000 Berlin und 8000 München Foerderanlage mit profilschienen, die zwei stromschienen und eine steuerschiene fuer den motor eines foerderwagens aufweisen
FR2583901A1 (fr) * 1985-06-21 1986-12-26 Francaise Convoyeurs Sa Systeme de cantonnement pour la circulation de mobiles automoteurs se deplacant sur une voie de guidage
FR2607455A1 (fr) * 1986-11-28 1988-06-03 Francaise Convoyeurs Sa Systeme de cantonnement pour la circulation de mobiles automoteurs se deplacant sur une voie de guidage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332101A1 (de) * 1983-09-02 1985-03-21 Siemens AG, 1000 Berlin und 8000 München Foerderanlage mit profilschienen, die zwei stromschienen und eine steuerschiene fuer den motor eines foerderwagens aufweisen
FR2583901A1 (fr) * 1985-06-21 1986-12-26 Francaise Convoyeurs Sa Systeme de cantonnement pour la circulation de mobiles automoteurs se deplacant sur une voie de guidage
FR2607455A1 (fr) * 1986-11-28 1988-06-03 Francaise Convoyeurs Sa Systeme de cantonnement pour la circulation de mobiles automoteurs se deplacant sur une voie de guidage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5721297A (en) * 1989-02-03 1998-02-24 Rhone-Poulenc Chimie Piperidyl organosiloxanes and polymer substrates light-stabilized therewith

Also Published As

Publication number Publication date
IT8967633A0 (it) 1989-07-26
EP0410943A3 (en) 1991-07-17
IT1232423B (it) 1992-02-17

Similar Documents

Publication Publication Date Title
US5170105A (en) Method for determining operability of an electrical dynamic braking system
US6904549B2 (en) Method for fault identification in an electrical radial network, an application of the method and an arrangement for fault identification in an electrical radial network
US5345358A (en) Method for evaluating operability of filter components in power conversion system
US4202273A (en) Travelling object control system utilizing power control
KR830008916A (ko) 패센저 컨베이어(trolley conveyor)의 제어장치
EP0410943A2 (de) Ausrüstung zur Steuerung der Bewegung von unabhängigen, mit Motor angetriebenen Fahrzeugen längs einer Lauflinie
US10703395B2 (en) Method and device for monitoring an electric network in a rail vehicle and rail vehicle
HU191165B (en) Control and safety device for switch operable by distant adjusting device or local locking frame
US4756494A (en) Vital switch control circuit
US3957236A (en) Method and apparatus for transitioning diverse power sources to rail vehicles
US3355584A (en) Train speed control system
US4453113A (en) Regenerative brake control for transit vehicle
US2925787A (en) Automatic dispatch
US3596086A (en) Automatic conveyor block system
CN1136115C (zh) 道岔转辙机极性转换开关
US2229254A (en) Railway traffic controlling apparatus
SU1036605A1 (ru) Устройство дл управлени стрелочными электроприводами трехфазного тока
KR920008335B1 (ko) 케이블 카 시스템
US2221043A (en) Overhead conveyer
US2324200A (en) Electrical control apparatus
US906129A (en) Electric apparatus for railway switches, signals, and the like.
US3181047A (en) Remote motor control system
US770630A (en) System of control for conveying-bridges
US1164671A (en) Alternating-current electric-despatch system.
SU1159517A1 (ru) Устройство пуска и защиты приводных электродвигателей многоопорной дождевальной машины

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE ES FR GB

17P Request for examination filed

Effective date: 19911219

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19930208