EP4304888A1 - Collecteur de courant et son procédé de fonctionnement - Google Patents

Collecteur de courant et son procédé de fonctionnement

Info

Publication number
EP4304888A1
EP4304888A1 EP21712738.0A EP21712738A EP4304888A1 EP 4304888 A1 EP4304888 A1 EP 4304888A1 EP 21712738 A EP21712738 A EP 21712738A EP 4304888 A1 EP4304888 A1 EP 4304888A1
Authority
EP
European Patent Office
Prior art keywords
unit
rocker
measuring
sensor
evaluation unit
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.)
Pending
Application number
EP21712738.0A
Other languages
German (de)
English (en)
Inventor
Daniel Pfeffer
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.)
Schunk Transit Systems GmbH
Original Assignee
Schunk Transit Systems GmbH
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 Schunk Transit Systems GmbH filed Critical Schunk Transit Systems GmbH
Publication of EP4304888A1 publication Critical patent/EP4304888A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
    • B60L5/39—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/40—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from lines in slotted conduits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R41/00—Non-rotary current collectors for maintaining contact between moving and stationary parts of an electric circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/62—Vehicle position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/66—Ambient conditions
    • B60L2240/662—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/70—Interactions with external data bases, e.g. traffic centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations

Definitions

  • the invention relates to a current collector and a method for
  • a current collector for transferring energy from a conductor rail to a rail vehicle
  • the current collector comprising a pressure device with a collector piece which forms a sliding contact surface, with a rocker unit with a pivoting rocker and a spring device of the pressure device exerting a pressure force on the the rocker-arranged contact strip is formed, the contact strip being moved relative to a busbar by means of the rocker unit and being pressed against the busbar in a sliding contact position with the pressing force to form a sliding contact.
  • pantographs and methods are well known from the prior art and are regularly used on rail vehicles for the transmission of electrical energy from a conductor rail to a rail vehicle.
  • the conductor rail is usually arranged in the area of the running rails and is also referred to as the so-called third rail.
  • a contact strip is arranged on a rocker or on a guide made up of joints, which is used to fasten and move the contact strip relative to the conductor rail. By means of this mechanical suspension of the contact strip, the contact strip can be pressed onto a sliding contact surface of the conductor rail with a defined pressing force.
  • busbars or current collectors in which the contact strip is pressed onto an upper side of the busbar, onto an underside of the busbar or onto a side surface of the busbar.
  • the contact strip is contacted by the contact strip moving up or down onto the contact rail via a run-up ramp with the contact rail, with the rocker or rocker or articulated guide then being pushed back via the contact strip and the required contact pressure is thus applied by the spring device.
  • the spring device can be designed as a mechanical rotary, screw or rubber spring.
  • the spring device also compensates for movements of the rail vehicle and a changing course of the conductor rail.
  • a relative distance between the current collector and the conductor rail can be variable. For example, in the area of switches or connecting pieces, there are ramps for the
  • Contact strip provided or paragraphs with several centimeters height difference are located. These track sections are regularly traveled through by rail vehicles at a comparatively high speed, which causes a strong impact on the respective contact strip, in particular due to shoulders in the conductor rail. In this case, the contact strip can also lift off the conductor rail and jump on the conductor rail due to vibration, as a result of which a material of the contact strip is heavily stressed. The contact strip itself or the rocker can also be excited to oscillate with the spring device. When the contact strip is lifted off the conductor rail, an arc can occur, as a result of which the energy requirement of the rail vehicle is increased. In addition, the mechanical suspension of the contact strip is subject to greater stress. The contact strip is also worn out by electrical erosion. Overall, this results in increased effort for maintenance of the current collector and replacement of the contact strip. Such current collectors are known, for example, from DE 10 2009 054 484 B4 and US 2013/0081915 A1.
  • the invention is therefore based on the object of proposing a method for operating a current collector and a current collector and a monitoring system with a current collector which enables improved operation.
  • a current collector which comprises a pressure device with a contact strip which forms a sliding contact surface, with a rocker unit having a pivotable rocker and a spring device of the pressure device a pressure force is exerted on the contact strip arranged on the rocker, with the contact strip being moved relative to a conductor rail by means of the rocker unit and being pressed into a sliding contact position against the conductor rail with the pressure force in order to form a sliding contact, with the current collector comprising a measuring unit with a measuring device , wherein at least one sensor of a sensor device of the measuring device is arranged on the pressure device and/or adjacent to the pressure device, with the sensor device measuring a measured value of And jerk device is detected, using a processing device of the measuring device
  • the rocker unit of the pressure device is designed to be rotatable, so that the unloaded rocker with the contact strip attached to it can be brought from an end position to the sliding contact position on the busbar, forming a pressure force.
  • the pressing force is applied by the spring device. Accordingly, the rocker unit alone enables a movement of the contact piece or the rocker between the sliding contact position and the end position.
  • the rocker can be pivoted on a simple pivot or be formed from several joints, which are each mounted at a pivot point in turn.
  • the spring device can have a mechanical, pneumatic or hydraulic spring element which is suitable for applying the pressing force.
  • the current collector comprises a measuring unit with a measuring device, which in turn has a sensor device with at least one sensor.
  • the sensor is arranged on the pressure device or the rocker or the contact strip and/or adjacent to the pressure device or as close as possible to the rocker or the contact strip.
  • a measured value of the pressing device or the rocker or the contact strip is recorded by means of the sensor device or the sensor.
  • This measured value is a physical measured variable that has a direct operative relationship with the pressure device and can be changed during operation of the pantograph.
  • the measured value or the measured variable measured with the sensor is now processed by means of the processing device and a characteristic value is determined which is suitable for describing an operating state of the pantograph and/or the conductor rail.
  • the characteristic value can be a parameterized value, a characteristic, a key figure or a data record.
  • the characteristic value can also be contained within a data record be.
  • the processing device is therefore formed by at least one digital electronic circuit that can process analog and/or digital signals from the sensor.
  • the processing device can, for example, also be a programmable logic controller (PLC), an integrated circuit (IC) or a computer.
  • the processing device determines the parameter that is suitable for describing the operating state of the pantograph, it is possible to determine the operating state of the pantograph, to monitor the pantograph and/or to influence the operating state of the pantograph. Since the operating state of the pantograph is also very significantly dependent on a condition or an operating state of the busbar, the characteristic value can also describe the operating state of the busbar. For example, the operating state can be a state of wear, so that it is then possible to make a statement about the state of wear based on the characteristic value. Overall, maintenance of the pantograph and the conductor rail can be carried out in a more targeted manner without having to comply with regular maintenance intervals. In addition, the operating state could also be changed, for example by adjusting the contact pressure. All in all, it is thus possible to operate a pantograph or a conductor rail more cost-effectively and thus to operate a rail vehicle more economically.
  • An angular position of the rocker unit, acceleration, frequency, temperature, illuminance, force, current, voltage, electrical resistance, distance, mass, air pressure and/or a Ortspositi be recorded and processed continuously or discontinuously.
  • a deflection of the rocker relative to the rail vehicle can be measured at a pivot point of the rocker.
  • a rotary potentiometer at the pivot point or another suitable sensor can be used for this purpose, for example.
  • a temperature can be measured with a temperature sensor on the pressure device or directly on the rocker or the contact strip, so that it can be determined, for example, whether there is a risk of the conductor rail icing up.
  • the lighting intensity can be measured with an optical sensor or also a camera, which then forms the sensor. This means that irregularities on the surface of the busbar or arcs can be detected, for example.
  • a force can be determined by means of a strain gauge, a force sensor, a pressure sensor or the like. For example, a pressing force can then be measured.
  • a current strength or a voltage can be measured with an ammeter or a voltmeter as a sensor.
  • a resistance can be determined from current and voltage and be a measure of contact quality, as well as provide information about the wear condition of the collector shoe. For example, a quality of energy transmission between contact strip and conductor rail can then be determined.
  • the mass can also be determined using a force sensor.
  • An air pressure can be measured on a bellows or a pressure cylinder to apply the contact pressure.
  • a location of the current collector can easily be determined by a satellite navigation system, such as GPS.
  • the measured value or the measured values can be determined or processed continuously or continuously. It is also possible to record and process the measured value(s) discontinuously, for example at specified times or on specific occasions.
  • at least one acceleration sensor is used as a sensor, which can then be arranged on the collector shoe and/or the rocker unit.
  • the acceleration sensor or vibration sensor can be used to measure a natural frequency and/or resonance frequency of the rocker unit or of the entire pantograph.
  • a movement of the contact strip on the busbar can be detected by means of the acceleration sensor, it then being possible to draw conclusions about the shape of the busbar from the movement. For example, a shoulder in the course of the busbar that can cause the collector shoe to lift off the busbar can be easily determined. Special measurement runs or on-site inspections of the busbar to determine such defects are then no longer necessary.
  • a change in the contact strip as a result of wear or abrasion on the conductor rail causes a change in the natural frequency and/or resonant frequency of the contact strip.
  • This can result in a difference between a new and a worn collector shoe.
  • the processing device can derive a change in the contact strip from a change in the natural frequency and/or resonant frequency of the contact strip.
  • natural frequencies and/or resonant frequencies of new and worn contact strips could be stored in the processing device, with the processing device being able to carry out a comparison and determine a state of wear or consumption of the contact strip without further calculations. This wear can then be output in the form of a characteristic value.
  • breakage or deformation of the contact strip can be easily determined.
  • the processing device can record and store the measured values from sensors and/or the characteristic values at regular time intervals, when there is a change, or continuously. Accordingly, it can be provided that the measured values and/or the characteristic values are only recorded and stored when the values change, in order to keep the volume of data small. Alternatively, it is possible a continuous ie provide for continuous recording and storage. By storing the measured values and/or characteristic values, it is possible to process them even after they have been recorded. For example, measured values can then be recorded while the rail vehicle is traveling, with the determination of the characteristic value(s) only being able to be carried out during maintenance of the rail vehicle in a depot. For example, a state of a conductor rail along a route of travel of the rail vehicle can be determined in this way after a journey.
  • An actuator for actuating the rocker unit can be controlled by means of a control device of the measuring device, wherein the actuation of the rocker unit can be regulated by means of a control device of the control device according to a measured value and/or a characteristic value.
  • the pressure device can include the actuator, which can be connected to the rocker unit or rocker in such a way that a linear movement of the actuator can cause the rocker unit to pivot between a sliding contact position and a storage position.
  • the actuator can be formed, for example, by a linear drive or a pneumatically or hydraulically actuated cylinder. It can also be provided that the pressing force is changed via the actuator or the actuator forms the pressing force. The actuator then forms the spring device.
  • the control device can now receive signals or measured values and/or characteristic values from the measuring device and use these by means of the control device to control the rocker unit. If, for example, the processing device detects a break in the contact strip, the rocker can be pivoted into a storage position on the rail vehicle by means of the actuator. In addition, it is possible to regulate the contact pressure via the actuator. In principle, such a control device can also be present independently of the measuring device as an assembly of the rail vehicle.
  • the pressing force can be controlled by the control device as a function of the measured values and/or characteristic values.
  • the pressing force can be made essentially constant, regardless of an angular position of the rocker and a movement of the rocker.
  • the processing device can, for example, output a parameter to the control device after the contact strip is accelerated away from the conductor rail, in which case the control device can then use the control device or the actuator to apply a counterforce to the seesaw, which prevents lifting.
  • the pressing force can then also be comparatively reduced if improved electrical contact with the busbar can be formed.
  • the measuring device can transmit the measured values and/or characteristic values to an evaluation unit, in which case the measured values and/or characteristic values can be stored in a database of the evaluation unit and/or can be further processed by means of an evaluation device of the evaluation unit.
  • the evaluation unit can consequently include the database and the evaluation device.
  • the evaluation unit can therefore be used to collect and further process the measured values and/or characteristic values and can be in the form of a computer.
  • the evaluation device can be used to display or output a result of an evaluation by an operator.
  • the evaluation unit can have a range of functions that goes beyond the range of functions of the processing device. In principle, however, it is also possible to integrate the processing device in the evaluation unit and vice versa. In principle, such an evaluation unit can also be present independently of the pantograph as an assembly of the rail vehicle.
  • the measured values and/or characteristic values of the measuring device can be transmitted to the evaluation unit and/or the control device via a data connection, with the evaluation unit and/or the control device being arranged at a spatial distance from the measuring unit or in the measuring unit can be integrated. If the control device or the evaluation unit is integrated in the measuring unit, the data connection can simply be in the form of a line connection. It is then also possible to install parts of the measuring device, such as the processing device and the control device as well as the evaluation unit, at another location on the rail vehicle, for example on a driver's stand. When the measured values and/or characteristic values are transmitted, data can be exchanged, for example on the basis of a transmission protocol.
  • the data connection can be established continuously, at regular intervals or based on events. Overall, it is thus possible to collect and evaluate data collected by the measuring device. Various options for evaluation then open up an analysis of specific states and events, with which operation of the pantograph and the power rail or the rail vehicle can be optimized.
  • the data connection can be established via an external data network.
  • the data connection can be configured individually or in combination via a cellular network, WLAN, a satellite connection, the Internet or any other radio standard.
  • the evaluation unit and/or the control device is arranged at a spatial distance from the measuring unit, it can also be arranged outside the rail vehicle, far away from the rail vehicle, in a stationary manner, for example in a building. In particular, this makes it possible for the pantograph to function on the To monitor rail vehicle and / or to control without this task having to be performed by a person on the rail vehicle itself.
  • a data connection to the evaluation unit and/or the measuring unit can be established by means of a user unit, it being possible for the measured values and/or characteristic values to be transmitted to the user unit and output.
  • the user unit can be a computer that is independent of the evaluation unit and/or the measuring unit.
  • This computer can be a stationary computer, a mobile radio device or the like, with which a further data connection for data exchange with the evaluation unit and/or the measuring unit can be established.
  • the data can be exchanged, for example, via an external data network such as the Internet.
  • the evaluation unit can be formed, for example, by a server with software that transmits the information contained in the database of the evaluation unit to the user unit. This transmission can consist of the provision of a website with selected information, for example a current state of wear of the contact strip.
  • the processing device or the evaluation unit can evaluate a time profile of the measured values and/or characteristic values and determine a state of wear of the pantograph and/or the busbar, taking into account a time-dependent component relevant to the wear and/or a measured variable-dependent component. In this way, not only can a statement be made about a current state of wear, but it can also be approximately determined at what point in time, for example, a collector shoe is likely to be worn out. This makes it possible
  • Maintenance interval for the pantograph to be precisely defined and timed to optimize.
  • the chronological progression can also be used to determine the point in time at which certain events occurred. If events occur repeatedly, a system can be derived from this. For example, poorer electrical contact or increased wear can be determined when driving on a specific route section.
  • Vibration of the contact strip can be detected by means of the sensor device, with the processing device being able to determine a natural frequency and/or a resonant frequency of the contact strip and/or the rocker unit, with the processing device or the evaluation unit being able to determine the state of wear of the contact strip.
  • a shape in particular a height of the contact strip, can be changed, with the change in shape being able to change the natural frequency and/or the resonant frequency of the contact strip.
  • a degree of wear of the collector shoe and/or the rocker unit can be determined by means of the processing device from the natural frequency and/or the resonance frequency.
  • the natural frequency and/or the resonant frequency changes with increasing abrasion of the material of the contact strip or a component of the rocker unit, this change can be used to draw conclusions about the degree of wear of the contact strip and/or the rocker unit. Not only can it be determined whether the contact strip is new or completely worn out, but also to what extent the contact strip has been used up.
  • the processing device or the evaluation unit can carry out a pattern analysis of the measured values and/or characteristic values stored over a period of time and derive a key figure from the pattern analysis. It can also be provided to carry out the pattern analysis using artificial intelligence.
  • the processing device or the evaluation unit can relate the measured values of different sensors and/or characteristic values to one another and determine functional dependencies. of the measured values and/or characteristic values. In this way, functional dependencies between the sensors can be examined. For example, a transmitted current can be related to a temperature and possibly determined that a busbar is iced up.
  • a number of other operating states and events as a result of functional dependencies can also be recognized and interpreted, for example ramp ascents along a conductor rail and their relative position, their gradient and number, lifting of the contact strip from the conductor rail and possibly sparks or arcing, wear of the contact strip as a result of mechanical friction on the conductor rail or electrical burn-off as a result of contact pressure or the contact force, in particular average wear over a stretch, stretches of stretch with particularly high or particularly low wear, a wear rate depending on driving behavior , such as acceleration or stall current load, damage and/or position deviations from the busbar, a current load, such as brief overcurrent, short-circuit current, triggering of a protective fuse or short-circuiter in the event of a fault, a condition nd wear components of the pantograph, such as bearings,
  • Joints, structural elements, a loss of the contact strip for example as a result of impact with an obstacle, a position, speed, acceleration and direction of travel of the rail vehicle. It is possible to react accordingly to these states and events mentioned above by way of example, by means of maintenance measures, an adaptation of the driving behavior of the rail vehicle, or other suitable measures.
  • a position sensor of the sensor device can be used to determine a location of the current collector, with the location being able to be assigned to the characteristic values, with the evaluation unit being able to determine a state of wear on the conductor rail.
  • the position sensor can, for example, determine a position of the pantograph and thus of the vehicle via satellite navigation. Among other things, it can be determined at which point on a route a certain measured value of another sensor of the sensor device was recorded. In this way, the relevant location can be assigned to an event or measured value.
  • the evaluation unit to determine the state of wear of the busbar, for example by evaluating vibrations of the current collector or the rocker unit along the busbar.
  • the rocker unit can have a different vibration behavior when the conductor rail is heavily worn.
  • Paragraphs, dips and ramps on the conductor rail can also be determined and assigned to a position on the route. This can be used to influence the speed of the rail vehicle in the travel sections of the route that are localized in this way.
  • the evaluation unit can process characteristic values from measuring units of several pantographs. In this way, the evaluation unit can process characteristic values of a number of pantographs arranged on a single rail vehicle. By comparing the characteristic values of the pantographs, the accuracy of a measurement or a monitoring can be further increased. In addition, characteristic values of pantographs that are arranged on different rail vehicles can be processed with the evaluation unit. This also allows an accuracy speed of measurements and monitoring of the rail vehicles or the respective busbars can be significantly improved. Among other things, an up-to-date and constantly changing picture of the status of a route network and the rail vehicles running on it can be obtained. A resulting optimization of an operating state can significantly reduce the operating costs.
  • the current collector according to the invention for transferring energy from a conductor rail to a rail vehicle comprises a pressure device with a contact strip which forms a sliding contact surface, the pressure device comprising a rocker unit for generating a pressure force with a pivoted rocker and a spring device, the contact strip being arranged on the rocker whereby the pressing device is designed in such a way that the contact strip can be moved relative to a busbar by means of the rocker unit and can be pressed against the busbar with a pressing force in a sliding contact position to form a sliding contact, with the current collector comprising a measuring unit with a measuring device, with at least one A sensor of a sensor device of the measuring device is arranged on the pressure device and/or adjacent to the pressure device, with a measured value of the pressure device being detectable by means of the sensor device is, the measured value being able to
  • the monitoring system according to the invention comprises at least one rail vehicle with at least one pantograph according to the invention.
  • the monitoring system can include a plurality of measuring units and an evaluation unit for processing measured values and/or characteristic values of the measuring units of a number of pantographs. As already described above, this makes it possible to monitor multiple current collectors of a rail vehicle or multiple rail vehicles with current collectors or to control the relevant current collectors with a single evaluation unit.
  • the monitoring system can consequently include a plurality of rail vehicles, each with at least one pantograph. It can also be provided that the rail vehicles each have a plurality of current collectors. Further advantageous embodiments of a monitoring system result from the feature descriptions of the subclaims referring back to the method claim 1 .
  • Fig. 1 shows a first embodiment of a current collector on a
  • FIG. 2 shows a second embodiment of a current collector on a rail vehicle in a side view
  • 3 shows a schematic representation of a first embodiment of a measuring unit
  • 4 shows a schematic representation of a second embodiment of a measuring unit
  • FIG. 5 shows a schematic representation of a monitoring system.
  • the current collector 10 comprises a carrier device 13 and a pressure device 14 with a contact strip 15.
  • the carrier device 13 is used to attach the current collector 10 to the Vehicle not shown here.
  • the contact strip 15 is connected to the pressure device 14 and is located on the conductor rail 12 in a sliding contact position shown here. A sliding contact surface 16 of the sliding piece 15 then rests on a surface 17 of the busbar 12, so that an electrical contact is made between the current collector 10 and the busbar 12.
  • the pressure device 14 presses the collector shoe 15 with a pressure force against the conductor rail 12 , the pressure device 14 comprising a rocker unit 18 with a rocker 19 designed to pivot and a spring device 20 .
  • the spring device 20 is connected to the carrier device 13 .
  • the spring device 20 is formed from a spring, not shown in detail, which causes the pressing force.
  • the spring device 20 also includes an actuator 21 by means of which the rocker 19 can be actuated or pivoted.
  • the rocker 19 is rotatably mounted on a swivel joint 22 .
  • the grinding piece 15 is attached to a distal end 23 of the rocker 19 .
  • a sensor 24 shown here schematically arranged is formed by an acceleration sensor 25 .
  • the sensor 24 is part of a sensor device of a measuring unit, not shown in detail here. With the acceleration sensor 25 Vibrations of the rocker 19 and the collector shoe 15 or corresponding measured values can be recorded.
  • Fig. 2 shows a current collector 26 with a conductor rail 27, in which case, in contrast to the current collector and the conductor rail from Fig. 1, a contact strip 28 is arranged on a rocker 29 in such a way that the conductor rail 27 is in contact with the contact strip 28 from below .
  • a spring device 30 of a pressure device 31 therefore acts in an opposite direction.
  • a sensor 32 is also provided here, with which an angular position of an angle a of the rocker 29 relative to a vertical attachment plane 33 of the pantograph 26 is measured. Information about a relative position of the conductor rail 27 to the rail vehicle can thus be determined via a measured value or a measured angle.
  • the sensor 32 is part of a sensor device of a measuring unit, not shown in detail.
  • the measuring unit 34 is formed from a measuring device 35 and also includes an evaluation unit 36.
  • the measuring device 35 in turn includes a sensor device 37 with a plurality of sensors 38 and a Processing device 39.
  • a supply device 40 is provided, by means of which the measuring device 35 is supplied with electrical energy.
  • the supply device 40 can be an energy store, a generator or an external energy supply, for example via a rail vehicle or a power rail.
  • the evaluation unit 36 has a database 41 and an evaluation device 42 and receives data or measured values and/or characteristic values from the processing device 39.
  • the processing device 39 receives measured values from the sensor 38 of the sensor device 37 and processes them.
  • the measured values relate to operating parameters or physical measured variables of a pressure device of a pantograph, not shown here, in the manner of the pantographs shown by way of example in FIGS.
  • the processing Processing device 39 processes the measured values in such a way that a characteristic value describing an operating state of the pantograph in question and/or a busbar is determined.
  • the characteristic values determined in each case are transmitted continuously or successively from the processing device 39 to the evaluation unit 36 and stored there in the database 41 or further processed or prepared with the evaluation device 42 .
  • FIG. 4 shows a further measuring unit 43 in which, in contrast to the measuring unit from FIG. 3 , the processing device 39 transmits data to a control device 44 .
  • the control device 44 is formed from a control device 45 and a rocker unit 46, with the control device 45 controlling an actuator of the rocker unit 46, not shown in detail here, as a function of the transmitted data.
  • a pressing force of a contact strip of a current collector which includes the rocker unit 46, is regulated in such a way that the contact strip is essentially prevented from being lifted off a conductor rail.
  • the monitoring system 47 can have a plurality of measuring units 48.
  • the measuring unit 48 has a measuring device 49 which includes a transmission device 50 .
  • the transmission device 50 receives data or measured values and/or characteristic values from the processing device 39 and transmits them to the control device 44.
  • An evaluation unit 54 with a database 55 and an evaluation device 56 is connected to the external data network 51 via a further data connection 53 and exchanges data or measured values and/or characteristic values with the transmission device 50 via the external data network 51 .
  • a user unit 58 is provided, which is connected to the external data network 51 by a further data connection 59 .
  • the user unit 59 can thus exchange data with the evaluation unit 54, ie data from the measuring units 48 processed by the evaluation unit 54 can be output or displayed via the user unit 58 and made available for further use.
  • the user unit 58 can also be directly connected to the evaluation unit 54 via a direct data connection 60 . Overall, it is thus possible to obtain measured values via sensors 38 attached to pantographs, not shown here, and to use these for direct control or regulation of the respective pantographs by means of the control device 44 .
  • this data can be transferred via the external data network 51, for example the Internet, to the evaluation unit 54 for storage and evaluation. Functional relationships of the data can thus be used, evaluated and interpreted. The results of these evaluations can be made available to an end user via the user unit 58 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

L'invention concerne un procédé pour le fonctionnement d'un collecteur de courant et un collecteur de courant (10) pour le transfert d'énergie à partir d'un rail conducteur (12) à un véhicule ferroviaire, le collecteur de courant comportant un dispositif de pressage (14) avec un frotteur de contact (15) qui forme une surface de contact coulissante (16), au moyen d'une unité à bascule (18) avec une bascule pivotante (19) et un dispositif à ressort (20) du dispositif de pressage, une force de pression étant appliquée au frotteur de contact disposé sur la bascule, et grâce à l'unité à bascule, le frotteur de contact est déplacé par rapport à un rail conducteur et, afin de former un contact glissant, est pressé contre le rail conducteur par la force de pression dans une position de contact coulissant, le collecteur de courant comprenant une unité de mesure dotée d'un dispositif de mesure, d'au moins un capteur (24) d'un dispositif de détection du dispositif de mesure est disposé sur le dispositif de pressage et/ou adjacent au dispositif de pressage, une valeur de mesure du dispositif de pressage étant détectée au moyen du dispositif de détection, la valeur mesurée est traitée au moyen d'un dispositif de traitement du dispositif de mesure et une valeur caractéristique décrivant un état de fonctionnement du collecteur de courant et/ou du rail conducteur est déterminée.
EP21712738.0A 2021-03-10 2021-03-10 Collecteur de courant et son procédé de fonctionnement Pending EP4304888A1 (fr)

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PCT/EP2021/056098 WO2022188972A1 (fr) 2021-03-10 2021-03-10 Collecteur de courant et son procédé de fonctionnement

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US (1) US20240140204A1 (fr)
EP (1) EP4304888A1 (fr)
JP (1) JP2024509219A (fr)
GB (1) GB2607157B (fr)
TW (1) TWI836363B (fr)
WO (1) WO2022188972A1 (fr)

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WO2025190495A1 (fr) * 2024-03-15 2025-09-18 Kempower Oyj Système de charge électrique
DE102024119386A1 (de) * 2024-07-08 2026-01-08 DETO Holding GmbH Stromabnehmereinheit mit Sensorsystem
DE102024119387A1 (de) * 2024-07-08 2026-01-08 DETO Holding GmbH Datenübertragungssystem zum Übertragen von Daten von Stromabnehmersystemen

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TW202237434A (zh) 2022-10-01
WO2022188972A1 (fr) 2022-09-15
GB2607157B (en) 2024-05-22
TWI836363B (zh) 2024-03-21
US20240140204A1 (en) 2024-05-02
JP2024509219A (ja) 2024-02-29
GB202203172D0 (en) 2022-04-20
GB2607157A (en) 2022-11-30

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