WO2024003320A1 - Pantographe inversé pour un dispositif de charge de véhicules électriques - Google Patents

Pantographe inversé pour un dispositif de charge de véhicules électriques Download PDF

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Publication number
WO2024003320A1
WO2024003320A1 PCT/EP2023/067936 EP2023067936W WO2024003320A1 WO 2024003320 A1 WO2024003320 A1 WO 2024003320A1 EP 2023067936 W EP2023067936 W EP 2023067936W WO 2024003320 A1 WO2024003320 A1 WO 2024003320A1
Authority
WO
WIPO (PCT)
Prior art keywords
pantograph
inverse
contact head
control unit
designed
Prior art date
Application number
PCT/EP2023/067936
Other languages
German (de)
English (en)
Inventor
Holger Schererz
Artur Wenkler
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2024003320A1 publication Critical patent/WO2024003320A1/fr

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
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/28—Devices for lifting and resetting the collector
    • B60L5/30—Devices for lifting and resetting the collector using springs
    • 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
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/28—Devices for lifting and resetting the collector
    • 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
    • B60L5/36—Current collectors for power supply lines of electrically-propelled vehicles with means for collecting current simultaneously from more than one conductor, e.g. from more than one phase
    • 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
    • B60L5/42—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from individual contact pieces connected to the power supply line
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/32—Constructional details of charging stations by charging in short intervals along the itinerary, e.g. during short stops
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and 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
    • B60L2200/00—Type of vehicles
    • B60L2200/18—Buses

Definitions

  • the invention relates to an inverse pantograph for a charging device for electric vehicles and a charging device with such an inverse pantograph.
  • a conventional current collector from rail vehicle technology is used as a current generator (pantograph), which is mounted upside down (inverse pantograph).
  • inverse pantograph In contrast to the application on rail vehicles, contact between the charging device and the vehicle is established on the supply side by the inverse pantograph lowering itself from top to bottom onto the electric vehicle. This leads to certain previously known inverse pantographs This carries out a pivoting movement, so that both a lowering and a lateral movement are carried out in a rotational movement.
  • the invention therefore sets itself the task of providing an improved inverse pantograph and an improved charging device for electric vehicles.
  • the invention solves this problem by an inverse pantograph according to claim 1 and a loading device according to claim 10.
  • Advantageous embodiments of the invention form the subject matter of the subclaims.
  • a first aspect of the invention introduces an improved inverse pantograph for a charging device for an electric vehicle.
  • the inverse pantograph has an actuator which has a suspension at a first end and a contact head for contacting the electric vehicle at a second end opposite the first end.
  • the suspension is used to attach it to a supporting structure such as a mast or a hall ceiling.
  • the actuator is designed to lower the contact head from a rest position to a charging position in order to charge the electric vehicle and to exert a contact force on the contact head in the charging position and to raise the contact head into the rest position after a charging process.
  • the actuator comprises a telescopic shaft which has at least two partial shafts which can be pushed axially into one another.
  • the inverted pantograph according to the invention enables a large working stroke, but requires little free space due to the use of the telescopic shaft, since, as in the prior art, a holding shaft with the contact head cannot be positioned in the space above the rest position of the contact head or correspondingly covers space must be swiveled away to the side.
  • the inverted pantograph according to the invention allows, for example, a lower ceiling height (logistics depot, bus station, etc.) with a constant working stroke and avoids lateral pivoting of the contact head, which requires corresponding obstacle-free and secured space to the side of the inverse pantograph.
  • the contact pressure is particularly preferably caused by a weight of the contact head and at least one partial shaft of the telescopic shaft. Or in other words, the contact pressure has no force component in the direction of the contact pressure other than the weight of the contact head and at least one partial shaft of the telescopic shaft.
  • a defined contact pressure can be achieved in a simple manner without having to measure the contact force and, if necessary. a motor or something similar would need to be regulated. This simple measure also makes it possible to maintain a constant contact pressure, even if the contact height changes after contact has been made due to the electric vehicle being lowered, in order to simplify the alighting and boarding of passengers or a bound unloading (often as English means "kneeling").
  • the contact pressure can result from several acting forces.
  • the contact pressure can be a difference in the weight of the contact head and the at least a part of the telescopic shaft and a counterforce.
  • the counterforce can, for example, be a restoring force, which is increased after the end of a charging process to lift the contact head into the rest position.
  • the actuator can comprise a control unit and a cable drive connected to the contact head, which is designed to move the contact head between the rest position and the loading position in response to control signals from the control unit.
  • a cable drive allows the power transmission to be redirected to the side and thus a low height arrangement.
  • the term “cable drive” does not necessarily mean a drive using a cable; of course, power transmissions with the same effect such as chains, belts and the like can also be used.
  • the cable drive preferably has an electric motor.
  • the contact head is particularly preferably connected to the telescopic shaft via a spring bearing.
  • the inverse pantograph has a first sensor, which is designed to measure a first measured variable that is dependent on a force acting on the spring bearing and to output it to the control unit as the first measurement signal.
  • the control unit is also designed to stop the cable drive when the first measurement signal exceeds a predetermined first threshold value. This makes it possible to lower the contact head in a controlled manner until the first sensor indicates that the contact head has touched the mating contacts of the electric vehicle, so that the force acting on the spring bearing exceeds the first threshold value. This means that more complex measures for position and distance detection can be omitted.
  • a second sensor can be provided, which is designed to measure a second measured variable that is dependent on a tensile force acting on the cable drive and to output it to the control unit as a second measurement signal. Then it is the control unit is also designed to stop the cable drive when the second measurement signal exceeds a predetermined second threshold value. This prevents the rope (chain, belt, etc., see above) from breaking if the contact head gets caught or another mechanical problem occurs when lifting the contact head.
  • An energy storage device connected to the control unit and the cable drive can also be provided.
  • the control unit is additionally designed to detect a failure of a supply voltage and to output a reset control signal to the cable drive if a failure of the supply voltage is detected.
  • the cable drive is designed to raise the contact head into the rest position in response to the reset control signal.
  • the energy storage can be, for example, an electrical or electrochemical storage, but also a spring storage or comparable mechanical storage. The energy storage ensures that the contact head can be raised to the safe rest position and therefore outside the area that can be reached by people and machines, despite a serious malfunction.
  • a second aspect of the invention relates to a charging device for charging an electric vehicle, the charging device having an inverse pantograph according to the first aspect of the invention.
  • Figure 1 shows an exemplary embodiment of an inverse pantograph according to the invention in a rest position
  • Figure 2 shows the exemplary embodiment of the inverse pantograph according to the invention in a loading position
  • Figure 3 shows a further exemplary embodiment of an inverse pantograph according to the invention.
  • Figure 4 shows a third exemplary embodiment of an inverse pantograph according to the invention.
  • Figure 1 shows an exemplary embodiment of an inverse pantograph 1 according to the invention in a rest position.
  • the inverse pantograph 1 has an actuator 2, which is intended to lower a contact head 6 arranged at one end of the actuator 2 - in normal operation, the lower end of the actuator 2 - from the rest position shown into a charging position.
  • the contact head 6 serves to establish electrical contacts via contact rails 7 to a mating contact arrangement arranged on the roof of an electric vehicle. For this purpose, the contact head 6 is lowered onto the counter-contact arrangement and pressed onto the counter-contact arrangement by the gravitational effect of the contact head 6 and parts of the actuator 2 connected to it.
  • the upper end - of the actuator 2 is connected to a suspension 3, which serves to connect the actuator 2 to a hall ceiling, a support bridge, a laterally positioned mast or the like.
  • the actuator 2 partially protrudes upwards beyond the suspension 3.
  • any suitable relative arrangements of the end of the actuator 2 connected to the suspension 3 and the suspension 3 can be provided.
  • attaching the suspension to an end of the actuator 2 other than the end at which the contact head 6 is arranged is considered to be implemented, when actuation of the actuator 2 during normal operation changes the relative vertical distance between the suspension 3 and the contact head 6.
  • Figure 2 shows the exemplary embodiment of the inverted pantograph 1 according to the invention from Figure 1 in a loading position.
  • the contact head 6 is lowered relative to the rest position, so that an electric vehicle positioned under the inverse pantograph 1 is contacted for a charging process.
  • the actuator 2 is extended compared to the rest position in order to overcome the height difference between the two positions.
  • a telescopic shaft 4 provided according to the invention becomes visible in FIG.
  • the number of partial shafts 5 can be increased in order to increase the height difference between the rest and loading positions relative to the total height of the inverse pantograph 1 in the rest position.
  • spring bearings 12 are also provided, which connect a base of the contact head 6 to the contact rails 7, so that the contact rails 7 are resiliently mounted on the base. This enables a certain level of height compensation if the electric vehicle positioned under the inverse pantograph 1 is not aligned exactly horizontally.
  • FIG. 3 shows a further exemplary embodiment of an inverse pantograph 1 according to the invention, the inverse pantograph being shown in the rest position.
  • the objects designated with the same reference symbols denote the same or similar objects as explained in the other illustrations.
  • the inverse pantograph from FIG. 3 was shown without one of the side walls of a housing of the actuator 2. This makes the telescopic shaft 4 arranged in the rest position inside the housing visible.
  • a cable guide 16 can be seen, which can be pivoted towards one another Is composed of links and on the cable 17 for conducting electrical power and control signals to the contact rails 7 of the contact head 6 are guided.
  • the cable guide 16 can follow movements of the telescopic shaft 4 and thereby compensate for a change in height of the contact head 6.
  • the cable guide 16 extends downwards out of the housing of the actuator 2. If the contact head 6 is raised back into the rest position, the cable guide 16 is lifted back into the housing in a bending movement, so that it finally has the inverted U-shape shown again.
  • Figure 4 shows a third exemplary embodiment of an inverse pantograph 1 according to the invention, which structurally at least largely corresponds to the example of Figure 3.
  • the exemplary embodiment of FIG. 4 also has a cable guide 16, as explained above.
  • the actuator 2 of the inverse pantograph 1 of FIG. 4 is equipped with a cable drive 11, which is designed, for example, with deflection rollers 9 and a cable 8, for example a wire cable.
  • the actual drive here is an electric motor 10, which is designed to wind the rope 8 onto a spindle or unroll it from it in order to move the contact head 6 between the rest and the loading position.
  • the term “rope” is not necessarily to be understood as a rope in the actual sense; belts or chains can also be used.
  • a first sensor 13 and a second sensor 14 are each arranged on the contact head 6 of the inverse pantograph of FIG. 4, with the first sensor 13 being arranged on one of the spring bearings 12.
  • Several first sensors 13 can also be provided, for example one on each spring bearing 12.
  • the first sensor 13 serves to directly or indirectly measure a force acting on the spring bearing 12 and to do so Force-representing measurement signal is output to a control unit 15.
  • the control unit 15 can be arranged anywhere and does not have to be located at the location of the actuator 2. A remote arrangement of the control unit 15, for example in a server, is also possible. For this reason, the representation of the control unit and the signal lines connected to it should also be understood purely schematically.
  • the control unit 15 can use the measurement signal received from the first sensor 13 to detect placement of the contact head 6 on the mating contact arrangement of the electric vehicle, whereupon the control unit 15 can stop the electric motor 10 of the cable drive 11 in order not to unroll the cable 8 unnecessarily .
  • the inverse pantograph 1 of the exemplary embodiment of Figure 4 is also equipped with a second sensor 14, which can be arranged, for example, between the cable 8 and the contact head 6 and is designed to directly or indirectly measure a tensile force acting on the cable drive 11 and to transmit a measurement signal representing the measured tensile force to the control unit 15.
  • the control unit 15 can use the measurement signal received from the second sensor 14 to stop the electric motor 10 of the cable drive 11 when the measurement signal indicates that the tensile force on the cable 8 increases beyond a certain level. This can be the case, for example, when the rest position is reached or if the measuring head 6 gets caught. In the latter case, the control unit 15 can output an error signal to draw attention to this error.
  • the sensors 13 and 14 can measure the measured variables mentioned in various ways.
  • the tensile force acting on the rope 8 can also be based on a measurement of the drive current flowing into the electric motor 10, so that the second sensor 14 is designed as a current sensor.
  • the first sensor 12 can equally relax or tighten of springs of the spring bearing 12, the control unit 15 accordingly evaluating the signal in different ways.

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 pantographe inversé (1) pour un dispositif de charge de véhicules électriques, et un dispositif de charge doté d'un tel pantographe inversé (1). Le pantographe inversé (1) comporte un actionneur (2) qui présente une suspension (3) au niveau d'une première extrémité, et une tête de contact (6), pour entrer en contact avec le véhicule électrique, au niveau d'une seconde extrémité qui est située à l'opposé de la première extrémité. La suspension (3) sert ici à la fixation sur une structure porteuse telle qu'un mât ou un plafond de hall. L'actionneur (2) est conçu pour abaisser la tête de contact (6) d'une position de repos à une position de charge, pour exercer une force de pression sur la tête de contact (6) dans la position de charge afin de charger le véhicule électrique, et pour soulever la tête de contact (6) dans la position de repos après un processus de charge. Selon l'invention, l'actionneur (2) comprend un arbre télescopique (4) qui présente au moins deux arbres partiels (5) pouvant coulisser axialement l'un dans l'autre.
PCT/EP2023/067936 2022-07-01 2023-06-29 Pantographe inversé pour un dispositif de charge de véhicules électriques WO2024003320A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022206751.7 2022-07-01
DE102022206751.7A DE102022206751A1 (de) 2022-07-01 2022-07-01 Invers-Pantograph für eine Ladevorrichtung für Elektrofahrzeuge

Publications (1)

Publication Number Publication Date
WO2024003320A1 true WO2024003320A1 (fr) 2024-01-04

Family

ID=87196385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/067936 WO2024003320A1 (fr) 2022-07-01 2023-06-29 Pantographe inversé pour un dispositif de charge de véhicules électriques

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Country Link
DE (1) DE102022206751A1 (fr)
WO (1) WO2024003320A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073745A1 (fr) * 2019-10-17 2021-04-22 Schunk Transit Systems Gmbh Unité de positionnement pour une station de charge et procédé pour établir un contact
CN113580971A (zh) * 2021-09-30 2021-11-02 国创移动能源创新中心(江苏)有限公司 一种充电设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017000916A1 (de) 2017-02-02 2018-08-02 Man Truck & Bus Ag Vorrichtung zum Aufladen eines elektrischen Energiespeichers eines einen elektrischen Antrieb aufweisenden Fahrzeugs
CN208035962U (zh) 2018-03-09 2018-11-02 凯迈(洛阳)电子有限公司 一种充电弓式电动汽车充电系统
DE102019214662A1 (de) 2019-09-25 2021-03-25 Siemens Aktiengesellschaft Ladestation für einen fahrzeugseitigen Energiespeicher
CN211335597U (zh) 2019-11-29 2020-08-25 比亚迪股份有限公司 车辆供电装置
CN118215598A (zh) 2021-10-25 2024-06-18 申克运输系统有限责任公司 用于充电站的定位单元和建立接触的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073745A1 (fr) * 2019-10-17 2021-04-22 Schunk Transit Systems Gmbh Unité de positionnement pour une station de charge et procédé pour établir un contact
CN113580971A (zh) * 2021-09-30 2021-11-02 国创移动能源创新中心(江苏)有限公司 一种充电设备

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