EP0023443A1 - Dispositif de sélection automatique de la vitesse d'un mobile automoteur - Google Patents

Dispositif de sélection automatique de la vitesse d'un mobile automoteur Download PDF

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Publication number
EP0023443A1
EP0023443A1 EP80401038A EP80401038A EP0023443A1 EP 0023443 A1 EP0023443 A1 EP 0023443A1 EP 80401038 A EP80401038 A EP 80401038A EP 80401038 A EP80401038 A EP 80401038A EP 0023443 A1 EP0023443 A1 EP 0023443A1
Authority
EP
European Patent Office
Prior art keywords
self
sections
propelled
relay
mobile
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.)
Ceased
Application number
EP80401038A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gilbert Strouck
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.)
Fata Sa SA
FATA SA
Original Assignee
Fata Sa SA
FATA SA
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 Fata Sa SA, FATA SA filed Critical Fata Sa SA
Publication of EP0023443A1 publication Critical patent/EP0023443A1/fr
Ceased legal-status Critical Current

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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
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated

Definitions

  • the means allowing the speed changes of a self-propelled vehicle generally consist of a conductive line running along the above-mentioned rail which carries significant information of the presence or absence of a self-propelled vehicle in advance in the distance considered.
  • Each self-propelled vehicle therefore has a device for reading this control line reacting at the output on the engine of the mobile and a device emitting a signal in said line, or modulator of a pre-existing signal.
  • the present invention relates to a particularly simple and sore installation for carrying out this reading and this "emission" of signal.
  • an automatic speed selection device - between a low and a high speed - of a self-propelled mobile traveling on a guide, depending on the presence or absence of a previous mobile on the guide, below a predetermined distance.
  • the first aforementioned means generate a fixed voltage corresponding to a high speed of the fixed self-propelled motor.
  • the first aforementioned means generate a variable voltage corresponding to a variable high speed of the self-propelled machine.
  • the self-propelled speed control device prefferably be constituted by the control winding a magnetic amplifier connected to the armature of the self-propelled motor.
  • a detection indicator for the state of short-circuit of each section will be provided which, connected to each section, will be placed in a control room for the operation of the installation.
  • control lines 3 and 4 parallel to said rail.
  • Each of these control lines 3 and 4 therefore running along the rail, is divided into sections 3a to 3d and 4a to 4d of equal lengths t.
  • This length is chosen to be twice a predetermined minimum distance which must separate two consecutive mobiles so that the next mobile can move at high speed.
  • the steering lines can also include sections of the same length or, as shown, a single conductor 4th, 3rd according to the methods of piloting or adjusting the speed of the self-propelled ones that have been chosen.
  • the sections 3a-3d are placed in staggered rows with respect to the sections 4a-4d. The value of the offset is equal to said predetermined distance.
  • each of the above sections is brought to a voltage U 1 as illustrated only for the sections 3d and 4b.
  • a resistor 8 will have been placed in series with an indicator light 9 (electroluminescent) at the terminals of which a resistor 10 is mounted to deflect the current, so that the indicator lights only when the section is short-circuited as explained below.
  • each of the portions of conductors 5a-5d, 6a-6d is brought to a voltage U 2 as shown opposite the portions 5d and 6a.
  • the voltage U 2 is significantly higher than the voltage U 1 (for example double).
  • Each self-propelled mobile comprises a device for exploiting the voltages carried by the control lines 3 and 4 or, more precisely, by each of their sections and portions of conductor.
  • this device consists of two friction contacts 11 and 12 electrically connected to the inputs of a bistable relay 13 for controlling two tilting contacts 13a and 13b. In a first position, that is to say in a first state of the relay, the contact 13a ensures the electrical connection of the wiper 12 with a device 14 for controlling the speed of the motor.
  • This control device may include in particular the control winding of a magnetic amplifier whose output is connected to the armature of the mobile electric motor.
  • a resistor 15 is placed on the connection line of the wiper 12 to the contact 13a and a Zener diode 17 is placed in a conventional manner so that a determined fixed potential, for example substantially U 1 , prevails at the contact 13a.
  • the contact 13b ensures the electrical connection of the wiper. 11 with the earth 16 through a resistor 18.
  • the value of this resistor is a function in particular of the value of the resistor 8 above (and of the assembly 9, 10) so that, when the short circuit is produced, the potential of the wiper 11 is of the order of a few volts (2 or 3).
  • the contact 13a establishes the electrical connection of the wiper 11 with the device 14 through a line carrying a resistor 15 and to which a Zener diode 17 is connected as described above, while the contact 13b connects the wiper 12 to earth 16 through the resistor 18.
  • the connection lines of the wipers 11 and 12 to the relay 13 also include a Zener diode 19 in series with the winding of the relay .
  • This diode has a voltage threshold below which it is not conductive. This threshold will be chosen at least equal to U I.
  • the wiper 11 is connected to the device 14 while the wiper 12 short-circuits the section of pilot line 4c.
  • the voltage of the section 3c is introduced into the device 14. This voltage is within a few volts the voltage U l taking into account the high impedance of the device 14 relative to that of the elements of the line 7.
  • the motor of the mobile is then at high speed until reaching the conductor portion 6c.
  • the wiper 12 receives on its passage over 6c a voltage D 2 and, through the diode 19, a voltage U 2 -U 1 reaches the winding of the relay 23 and causes it to change state.
  • the section 3d is short-circuited through the resistor 18 while the section 4d is electrically connected to the device 14 which therefore always receives a voltage substantially equal to U 1 and the mobile continues its journey at high speed.
  • the device 14 includes electronic elements so that the cutoff corresponding to the switching of the relay does not react on the control of the motor.
  • the wiper 11 will then reach the portion of conductor 5d.
  • the relay 13 receiving the voltage U 2 -U 1 switches again and the section 3e will be in electrical connection with the device 14, while the section 4d is short-circuited.
  • the third section is a curved section and it is advantageous from the point of view of safety for the mobiles to pass the curves at low speed. To obtain this result, the 3rd and 4th sections are not supplied. Thus, the voltage received by the device 14 is zero and the mobile moves at low speed. It will remain at low speed even after switching the relay when the wiper 12 passes over the conductor portion 6d, At the end of the curve, a new section will be provided on line 3 brought to the voltage U 1 and the mobile can reach its maximum speed.
  • the operation of the mobile 2 is identical to that of the mobile 1.
  • the mobile 2 is in contact with the section 4c of the control line 4, as well as the mobile 1.
  • said section 4c is short-circuited, that is to say at a potential of a few flights.
  • the device 24 for controlling the speed of the mobile 2 receives only these few volts, therefore that the speed of this mobile is small.
  • the section 4c regains its potential U 1 which is transmitted to the device 24 and the mobile 2 goes at high speed.
  • the device 24 After the portion of conductor 5c the device 24 receives the voltage carried by the conductor 3d which will be of U 1 if the mobile 1 is, either between the portions 5c and 6c which is impossible taking into account the preceding situation, or beyond of 5d or which will be a few volts if the mobile 1 is between the portions 6c and 5d.
  • U 1 can be 24 volts and U 2 can be 48 volts.
  • U 2 is zero in which case the relay 23 would fall at each end of sections and would be excited consecutively in one direction and then in the other for the establishment and maintenance of its two states by the consecutive sections.
  • Such an embodiment which falls within the scope of the invention, has been practically ruled out since it presents far too many operational hazards.
  • the voltage U 1 is no longer fixed but variable and, in particular, subject to the movement of another mobile. So for example, if the mobiles 1 and 2 belong to an overhead conveyor, it may be advantageous that, over a certain length, their speed is identical to that of carriages belonging to a ground conveyor above which the overhead conveyor passes over said length. In this case, the ground conveyor would emit the above voltage U 1 in proportion to its speed.
  • a device 24 consisting of the control winding of a magnetic amplifier associated with the armature (or inductor) of the motor of the mobiles, it is known that the voltage applied to the control winding conditions directly the output voltage of the amplifier, therefore the speed of the motor.
  • mobiles equipped with the device according to the invention will include security systems in the event of a failure by default of the electrical supply or any immobilization.
  • any mobile stationary will have a short-circuiting device for the two control lines 3 and 4 thus avoiding a mobile, which has broken down on the adjacent end of two consecutive sections and for which the relay does not would not have tipped over, been hit by another at high speed.
  • the device according to the invention has great advantages with regard to security and control of the operation of the installation, its flexibility of use and the simplicity of its implementation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Non-Mechanical Conveyors (AREA)
EP80401038A 1979-07-23 1980-07-10 Dispositif de sélection automatique de la vitesse d'un mobile automoteur Ceased EP0023443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7918946 1979-07-23
FR7918946A FR2461627A1 (fr) 1979-07-23 1979-07-23 Dispositif de selection automatique de la vitesse d'un mobile automoteur

Publications (1)

Publication Number Publication Date
EP0023443A1 true EP0023443A1 (fr) 1981-02-04

Family

ID=9228170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401038A Ceased EP0023443A1 (fr) 1979-07-23 1980-07-10 Dispositif de sélection automatique de la vitesse d'un mobile automoteur

Country Status (5)

Country Link
US (1) US4357562A (es)
EP (1) EP0023443A1 (es)
ES (1) ES8104095A1 (es)
FR (1) FR2461627A1 (es)
PL (1) PL125615B1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486694A (en) * 1981-05-22 1984-12-04 Shinko Electric Co., Ltd. Process for changing a running direction of an electromagnetically guided driverless vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596086A (en) * 1969-05-05 1971-07-27 Sybron Corp Automatic conveyor block system
FR2364155A1 (fr) * 1976-09-13 1978-04-07 Furukawa Electric Co Ltd Dispositif electrique de commande pour corps en mouvement
FR2399349A1 (fr) * 1977-08-02 1979-03-02 Fata Sa Installation electrique de convoyage par mobiles automoteurs asservis en vitesse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506823A (en) * 1967-12-21 1970-04-14 Westinghouse Air Brake Co Vehicle speed control system
US3835950A (en) * 1971-09-23 1974-09-17 Mitsubishi Electric Corp Apparatus for controlling the speed and spacing of vehicles
US3817344A (en) * 1971-09-23 1974-06-18 Mitsubishi Electric Corp Apparatus for controlling vehicular speed and interspacing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596086A (en) * 1969-05-05 1971-07-27 Sybron Corp Automatic conveyor block system
FR2364155A1 (fr) * 1976-09-13 1978-04-07 Furukawa Electric Co Ltd Dispositif electrique de commande pour corps en mouvement
FR2399349A1 (fr) * 1977-08-02 1979-03-02 Fata Sa Installation electrique de convoyage par mobiles automoteurs asservis en vitesse

Also Published As

Publication number Publication date
ES493552A0 (es) 1981-04-01
ES8104095A1 (es) 1981-04-01
FR2461627A1 (fr) 1981-02-06
PL125615B1 (en) 1983-06-30
FR2461627B1 (es) 1981-09-04
US4357562A (en) 1982-11-02
PL225835A1 (es) 1981-08-07

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

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Effective date: 19810312

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Effective date: 19831009

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STROUCK, GILBERT