WO2023208367A1 - Messeinheit und ladevorrichtung - Google Patents
Messeinheit und ladevorrichtung Download PDFInfo
- Publication number
- WO2023208367A1 WO2023208367A1 PCT/EP2022/061539 EP2022061539W WO2023208367A1 WO 2023208367 A1 WO2023208367 A1 WO 2023208367A1 EP 2022061539 W EP2022061539 W EP 2022061539W WO 2023208367 A1 WO2023208367 A1 WO 2023208367A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measuring unit
- primary
- positioning sensor
- primary positioning
- charging
- 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
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
- 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
- B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
-
- 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
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive 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
- B60L53/10—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
- B60L53/12—Inductive energy transfer
- B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the invention relates to a measuring unit and a charging device.
- Electric vehicles can be charged inductively with electrical energy.
- the electric vehicle includes a secondary coil, which can be inductively coupled to a primary coil of a charging station.
- the primary coil is usually arranged in the floor of a charging station so that the electric vehicle can be positioned with the secondary coil above the primary coil.
- the secondary coil is expediently located on the underbody of the electric vehicle, particularly in the area of the front axle.
- the primary and secondary coils must be positioned one above the other as precisely as possible.
- the positioning tolerance is a few centimeters in the direction of travel of the electric vehicle and in the direction perpendicular to it and parallel to the ground.
- a maximum angle of rotation around the vertical axis is only a few degrees. It is correspondingly difficult to position the electric vehicle in a suitable manner for inductive charging.
- a method for determining an arrangement of the electric vehicle relative to the charging station is helpful in order to support a driver of the electric vehicle in moving to a position suitable for inductive charging of the electric vehicle.
- determining the arrangement of the electric vehicle relative to the charging station is also relevant to safety, since a charging release, i.e. permission to activate the charging field of the primary coil, can only take place if the secondary coil is within a defined tolerance range above the primary coil.
- a charging release i.e. permission to activate the charging field of the primary coil
- the invention relates to a measuring unit with at least a first primary positioning sensor and a connecting means for use for positioning a primary coil of a charging unit and a secondary coil of an electric vehicle, in which the measuring unit is designed such that it is fixed to the charging unit by means of the connecting means can be connected and the at least one first primary positioning sensor is designed to communicate wirelessly with at least one secondary positioning sensor of the electric vehicle during positioning.
- This measuring unit has the advantage that it is arranged at a distance from the primary coil and thereby enables the primary coil to be positioned relative to the secondary coil in a reliable manner. For example, electromagnetic waves that are used for positioning are not disturbed or are only disturbed to a small extent by the primary coil due to the locally remote arrangement of the at least one first primary positioning sensor.
- By firmly connecting the measuring unit to the load unit by means of the connecting means it is advantageously achieved that the local position of the at least one first primary positioning sensor relative to the primary coil is not changed even in the event of external influences, such as vandalism or displacement of the loading unit, so that the positioning is extremely reliable and extremely reliable even in the event of external influences can be done exactly.
- the term “firmly connectable” is understood to mean that the measuring unit and the charging unit can be firmly connected to one another via the connecting means, for example by means of a screw connection, by plugging together and/or by means of gluing.
- This term f f can also be understood to mean that After establishing a connection between the charging unit and the measuring unit, both units are inseparably connected to one another.
- this term expresses that the connection determines a local position of the charging unit to the measuring unit or of the primary coil to the at least one primary positioning sensor is defined that even in the event of external influences, such as a displacement of the loading unit, the local position remains almost unchanged.
- a respective primary positioning sensor can wirelessly send out information as a transmitter, which can be received by a respective secondary positioning sensor and can be used to position the primary coil in relation to the secondary coil can .
- a respective secondary positioning sensor can also serve as a transmitter and a respective primary positioning sensor can serve as a receiver.
- the communication can be unidirectional or bi-directional.
- the information can be encoded and transmitted in the form of electromagnetic waves.
- the information can also be encoded and transmitted using WLAN (WLAN - Wireless Local Lan) and an IP protocol (IP - Internet Protocol) with a PTP according to IEEE1588 (PTP - Precision Time Protocol).
- the measuring unit is elongated, with the connecting means being arranged on a first side of the measuring unit and the first primary positioning sensor being arranged on a second side of the measuring unit opposite the first side.
- the elongated design of the measuring unit ensures that there is a greater distance between the primary coil and the at least one first positioning sensor, whereby interference caused by the coil, for example due to its windings, during positioning is reduced or avoided.
- the elongated design also has the advantage that the electric vehicle can be prevented from driving over the measuring unit if the elongated shape of the measuring unit is selected in the direction of travel of the electric vehicle.
- the elongated design of the measuring unit can also advantageously ensure the robustness of the measuring unit in practical use.
- the measuring unit is at least partially designed as a tube, in particular at least partially with a rectangular or round cross section.
- Designing the measuring unit as a tube is advantageous because the measuring unit can be manufactured and provided in a simple and cost-effective manner using standard components.
- a tube that is hollow inside has the advantage that a power supply cable and/or wires for signal transmission of the at least one first primary positioning sensor are guided in an orderly manner inside the tube are also protected from damage, such as when an electric vehicle drives over them.
- a rectangular cross section is advantageous because it means that the measuring unit has a smooth side that can lie flat on a surface, and thus the measuring unit can be given additional stability against slipping or shifting relative to the floor.
- the tube is designed in two parts, with a first part, which is flat, lying at least partially on a floor, in particular can be fixed to the floor by means of fastening means, such as screws, and a second part of the tube is shaped as a round arch and by means of a closure means can be connected to the first part, for example by means of a snap connection with snap hooks.
- the tube can be hollow or filled inside.
- the tube can also have fastening means to connect it to a cable of the charging unit, for example the tube has eyelets through which a cable tie is passed and is pulled around the cable.
- a cable for supplying energy to the primary coil is integrated in the tube.
- the measuring unit can ensure protection against damage to the cable.
- the measuring unit ensures a fixed, predetermined local guidance of the cable, which means a Potential damage to the cable caused by being driven over can be reduced.
- the measuring unit is Y-shaped or T-shaped, has connecting means at one end of the Y/T and a respective first primary positioning sensor is arranged at a respective other end of the Y/T.
- the charging unit has a cable for power supply or signal exchange, which is led out of a housing of the charging unit, whereby
- the connecting means is designed such that the at least one first primary positioning sensor can be firmly connected to the cable (EK).
- EK cable
- This development shows the advantage that the first primary positioning sensor can be firmly connected to the charging unit via its cable with little effort and/or very cost-effectively. For example, if the charging unit has an output of 22 kW, the diameter of the cable is several centimeters thick and therefore not very flexible. Even when the charging unit including the cable is moved, the local position of the first primary sensor changes only slightly, if at all, so that the positioning can be carried out with a sufficiently high quality after moving. In this further training you can the first primary positioning sensor can be supplied with electrical energy using its own battery, for example.
- the invention further relates to a charging device for inductive charging of an electric vehicle, with the charging unit and the measuring unit according to one of the preceding embodiments, in which the charging unit, in addition to the primary coil, also has at least a second primary positioning sensor, which together with the at least a first primary positioning sensor and the at least one secondary positioning sensor of the electric vehicle performs the positioning.
- This preferred further development makes it possible to improve the accuracy of the positioning. This is based, among other things, on the fact that the second primary positioning sensors also have a fixed local position relative to the primary coil, so that a joint measurement evaluation of measurement signals from the first primary positioning sensors and the second primary positioning sensors achieves the accuracy in determining the position of the primary coil relative to the secondary coil .
- At least one of the second primary positioning sensors is arranged in the charging unit in such a way that a distance between the primary coil and the at least one first primary positioning sensor is smaller than a distance between the second primary positioning sensor and the at least one first primary positioning sensor .
- the second primary positioning sensors could in principle be attached to any location in or on or on the loading unit be .
- the distance between the primary sensors should be as large as possible. This development enables a distance of the at least one second primary positioning sensor from the first primary positioning sensor to be greater than the distance between the first primary positioning sensor and the primary coil. This improves the accuracy of positioning by the loading device.
- the at least one first primary positioning sensor and the two second primary positioning sensors are arranged such that these sensors span an isosceles triangle, with a base formed by a distance between the two second primary positioning sensors.
- a distance between a coil and/or one or more of the positioning sensors can be considered. This can be understood to mean that the respective distance from/to a center of the respective positioning sensor or from/to a center of the respective coil is determined.
- Fig. 1 A charging device with a measuring unit and a charging unit
- FIG. 2 A unit of measurement;
- Fig. 3 An alternative embodiment of a measuring unit;
- Fig. 5 An optional embodiment of a measuring unit
- the charging device LAV also has a measuring unit E2.
- This is designed in Figure 1 as a cable duct with a square cross-section, in which an electric cable EK is guided to the charging unit El, which supplies the primary coil with electrical energy. This electrical energy is then used via a magnetic flux on a secondary coil SPS of the electric vehicle to charge the battery of the electric vehicle.
- the primary positioning sensors S i l, S 12, S21, S22 are designed to communicate wirelessly with secondary positioning sensors ES I, ES2 installed in the electric vehicle.
- the primary positioning sensors are designed as transmitters that emit electromagnetic waves at a frequency of 125 kHz. These electromagnetic waves are received by the secondary positioning sensors and, after evaluating one or more measurement signals, e.g. B.
- a measurement of field strength and field direction of the electromagnetic signal or field direction of the magnetic waves a position of the secondary coil of the electric vehicle in relation to the primary coil of the charging device is determined.
- positioning which is based, for example, on a triangulation or a field model of the electromagnetic signal. This can be used to automatically guide or move the electric vehicle in such a way that the primary coil and the secondary coil can be positioned one above the other in such a way that a magnetic flux with low losses is enabled after the positioning has ended.
- Figure 3 shows an alternative arrangement of the measuring unit E2 in the form of a “T”.
- the connecting means VEM is arranged at the foot of the “T” and a first primary positioning sensor S i l, S 12 is arranged at both outer locations of the “T”.
- Figure 4 shows a further alternative arrangement of the measuring unit E2 in the form of a “Y”.
- the connecting means VEM is arranged at the foot of the “Y” and a first primary positioning sensor S i l, S 12 is arranged at both outer locations of the “Y”.
- the measuring unit can be used in charging units and/or charging devices that, for example, provide electric vehicles for transporting people or goods.
- the electric vehicles can be controlled by a person or autonomously.
- the electric vehicle can be designed as a transport robot in a factory or as a cleaning robot in a hospital.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22726647.5A EP4482705A1 (de) | 2022-04-29 | 2022-04-29 | Messeinheit und ladevorrichtung |
| US18/860,227 US20250289335A1 (en) | 2022-04-29 | 2022-04-29 | Measuring unit and charging device |
| PCT/EP2022/061539 WO2023208367A1 (de) | 2022-04-29 | 2022-04-29 | Messeinheit und ladevorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2022/061539 WO2023208367A1 (de) | 2022-04-29 | 2022-04-29 | Messeinheit und ladevorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023208367A1 true WO2023208367A1 (de) | 2023-11-02 |
Family
ID=81854569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/061539 Ceased WO2023208367A1 (de) | 2022-04-29 | 2022-04-29 | Messeinheit und ladevorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250289335A1 (de) |
| EP (1) | EP4482705A1 (de) |
| WO (1) | WO2023208367A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024207612A1 (de) * | 2024-08-09 | 2026-02-12 | Siemens Aktiengesellschaft | Messvorrichtung, Ladevorrichtung, Elektrofahrzeug und Ladeverfahren |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015107812A1 (de) * | 2014-05-23 | 2015-11-26 | Ford Global Technologies, Llc | Ultraschallortung für ein Elektrofahrzeugaufladesystem |
| US20160089997A1 (en) | 2014-09-30 | 2016-03-31 | Martin Glänzer | Method for determining an arrangement of an electric vehicle and arrangement determination unit |
| DE102014220247A1 (de) * | 2014-10-07 | 2016-04-07 | Robert Bosch Gmbh | System und Verfahren zur Assistenz für die Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung |
-
2022
- 2022-04-29 WO PCT/EP2022/061539 patent/WO2023208367A1/de not_active Ceased
- 2022-04-29 EP EP22726647.5A patent/EP4482705A1/de active Pending
- 2022-04-29 US US18/860,227 patent/US20250289335A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015107812A1 (de) * | 2014-05-23 | 2015-11-26 | Ford Global Technologies, Llc | Ultraschallortung für ein Elektrofahrzeugaufladesystem |
| US20160089997A1 (en) | 2014-09-30 | 2016-03-31 | Martin Glänzer | Method for determining an arrangement of an electric vehicle and arrangement determination unit |
| DE102014220247A1 (de) * | 2014-10-07 | 2016-04-07 | Robert Bosch Gmbh | System und Verfahren zur Assistenz für die Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024207612A1 (de) * | 2024-08-09 | 2026-02-12 | Siemens Aktiengesellschaft | Messvorrichtung, Ladevorrichtung, Elektrofahrzeug und Ladeverfahren |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4482705A1 (de) | 2025-01-01 |
| US20250289335A1 (en) | 2025-09-18 |
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