EP3488452A2 - System zur induktiven energieübertragung an ein auf einer verfahrfläche, insbesondere verfahrebene, bewegbar angeordnetes fahrzeug - Google Patents
System zur induktiven energieübertragung an ein auf einer verfahrfläche, insbesondere verfahrebene, bewegbar angeordnetes fahrzeugInfo
- Publication number
- EP3488452A2 EP3488452A2 EP17734244.1A EP17734244A EP3488452A2 EP 3488452 A2 EP3488452 A2 EP 3488452A2 EP 17734244 A EP17734244 A EP 17734244A EP 3488452 A2 EP3488452 A2 EP 3488452A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- vehicle
- primary coil
- secondary coil
- gravity
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000001939 inductive effect Effects 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims description 44
- 230000005484 gravity Effects 0.000 claims description 38
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 229910000859 α-Fe Inorganic materials 0.000 claims description 18
- 230000005291 magnetic effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- 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
-
- 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
- Y02T90/14—Plug-in electric vehicles
Definitions
- the invention relates to a system for inductive energy transmission to a on a
- Traversing surface in particular traversing plane, movably arranged vehicle.
- the invention is therefore based on the object to enable an interoperable operation.
- the system is provided for inductive energy transfer to a on a travel surface, in particular traversing, movably arranged vehicle, the system having a first primary coil and having a second primary coil, wherein the first primary coil is arranged below the travel surface, in particular in the direction of gravity and / or on the side facing away from the vehicle side of the
- the second primary coil is arranged above the traversing surface, in particular against the gravitational direction and / or on the vehicle
- a first secondary coil is arranged, in particular which is connected to the vehicle, wherein the vertical projection of the second primary coil on the Verfahr requirements less surface area than that vertical projection of the first primary coil.
- the resonant frequency of that resonant circuit which is formed from the secondary coil and a capacitor connected in series and / or in parallel is unchanged.
- the resonant circuit does not need to be adapted to the mounting of the primary coil.
- the same primary coils were used recessed or overlying, an adaptation of the
- the resonant transmission is advantageous in the present weak inductive coupling, ie in the present large air gap in the transmission, since nevertheless a high efficiency is achievable.
- the system has a first primary coil and a second primary coil, wherein the first primary coil is arranged below the traversing surface, in particular Gravitational direction and / or on the side facing away from the vehicle side of the
- the second primary coil is arranged above the traversing surface, in particular against the gravitational direction and / or on the vehicle
- a first secondary coil is arranged, in particular which is connected to the vehicle, wherein the first primary coil has a first coil core, in particular of ferrite, wherein the second primary coil has a second coil core, in particular made of ferrite, wherein the vertical projection of the second coil core on the traversing surface has less surface area than the vertical projection of the first coil core.
- the advantage here is that, in turn, an interoperable operation is possible, so the vehicle is loaded on the differently arranged primary coils in the same way.
- the top floor primary coil Because by the geometrical adaptation of the top floor primary coil relative to the recessed arrangement of the primary coil always the same inductance of the secondary coil can be reached. In this way, however, a resonant transmission is always possible with very good efficiency.
- the inductance of the secondary coil is the same for both types of loading, ie from the recessed or from the resting primary coil, the resonant frequency of that resonant circuit which is formed from the secondary coil and a capacitor connected in series and / or in parallel is unchanged. Thus, therefore, the resonant circuit does not need to be adapted to the mounting of the primary coil. However, if the same primary coils were used recessed or overlying, it would be necessary to adapt the resonant circuit.
- the resonant transmission is advantageous in the present weak inductive coupling, ie in the present large air gap in the transmission, since nevertheless a high efficiency is achievable.
- the second primary coil is arranged above the traversing surface, in particular against the gravitational direction and / or on the vehicle
- a first secondary coil is arranged, in particular which is connected to the vehicle, insbeosndere wherein the first primary coil has a first coil core, in particular of ferrite, and wherein the second primary coil a second coil core, in particular of ferrite, wherein in centric positioning of the first secondary coil on the first primary coil, the self-inductance (L22) or the magnetic conductance (G2) of the first secondary coil has the same value as the self-inductance of the first secondary coil in centric positioning of the first secondary coil over the second primary coil.
- the advantage here is that a substantially uniform interoperable operation is possible. With deviations of less than 10% and correspondingly low quality of the resonant circuit, in turn, a substantially unchanged loading on the differently arranged primary coils can be achieved.
- the quality of the resonant circuit can be determined by dimensioning the components used in the real version.
- the respective primary coil has a respective one
- Ferrite material and the winding on the upper side, that is arranged on the side facing the vehicle of the coil core, in particular wherein the winding is designed as a flat winding and / or planar winding, in particular flat flat winding.
- the advantage here is that the primary coil can be executed in each case as a field plate, ie as a plate-like unit. It is decisive for the plate-like shape of the coil core.
- the bobbin is, for example, as a flat plate, like Circular disk or cuboid, executable.
- ferrite material is preferably used.
- the winding is designed as a flat winding and placed on the spool core or inserted into a bobbin, which is placed on the bobbin.
- the fastening material has, for example, potting compound and / or other fastening parts, such as screws or the like.
- the first secondary coil has a coil core on which a winding, in particular a secondary winding, is arranged and by means of
- Fixing material is held on the bobbin of the first secondary coil, in particular wherein the bobbin is formed plate-like, in particular from
- Ferrite material and the winding on the upper side, that is arranged on the side facing the vehicle of the coil core, in particular wherein the winding is designed as a flat winding and / or planar winding, in particular flat flat winding.
- the advantage here is that a simple production is executable.
- the system has a different from the first secondary coil, second secondary coil, wherein the coupling conductance GM or the coupling inductance L12 between the first
- Secondary coil and first primary coil has the same value as between the first
- Coupling inductance L12 between the second secondary coil and the first primary coil the same value as between the second secondary coil and second primary coil or the deviation of these two values from each other is less than 10%.
- the second secondary coil is larger than the first secondary coil, in particular wherein the vertical projection of the second secondary coil, in particular the vertical projection of the coil core of the second secondary coil on the traversing surface has more surface area or longer in one direction than the vertical projection the first secondary coil, in particular the vertical projection of the
- FIG. 1 shows a system according to the invention for inductive loading, wherein a primary coil 2 is arranged in a recess of the bottom and a secondary coil 1 is arranged on the underside of a vehicle, not shown, wherein the vehicle is movable on the floor 3.
- FIG. 5 shows a cross section through the secondary coil 1 and through the primary coil 1.
- FIG. 6 shows a schematic circuit diagram for the inductive energy transmission in the system according to the invention.
- FIG. 8 shows a magnetic field line diagram associated with the system according to FIG.
- FIG. 9 shows a magnetic field line diagram associated with the system according to FIG.
- FIGS. 10 to 12 show further magnetic field lines for systems.
- each coil has a winding 51 which is placed on a plate-like coil core made of ferrite.
- each coil also has mounting material 50, such as potting compound, on. Thus, the coil is held together.
- the fastening material is diamagnetic or paramagnetic, ie not ferromagnetic.
- the plate-like coil cores 52 are each aligned parallel to the ground plane, ie trajectory of the vehicle.
- the winding 51 of the primary coil 2 is disposed on the secondary coil 1 side facing the coil core and the winding 51 of the secondary coil 1 on the
- Primary coil 2 facing side of the spool core 52 is arranged.
- FIGS. 1 and 2 the same secondary coils are shown in each case. However, because of the arrangement of the primary coil 2 on the bottom 3 or in a depression of the bottom 3, a different inductive coupling strength to the secondary winding 1 would be present.
- the primary coils 2 are respectively embedded in the ground, but the secondary coils have different sizes, in particular they differ
- Secondary coils 1 in size, so in particular expansion parallel to the ground plane.
- the secondary coils are the same size, but the primary winding 2 is disposed either in a recess of the bottom 3 or on the bottom 3.
- the primary coil 2 is smaller when arranged on the bottom 3 executed as in the arrangement in the recess of Figure 3.
- the coil core of the respective coil (1, 2) has the magnetic flux-conducting material of the respective coil (1, 2).
- interoperability can be ensured by loading a vehicle with its secondary coil either from a primary coil according to FIG. 1 or according to FIG.
- an inverter which has two half-bridges of controllable semiconductor switches, is supplied from a DC supply voltage U1.
- This DC supply voltage U1 can be provided via a rectifier from a public AC power supply network.
- the alternating voltage UQ provided by the inverter at its AC-side terminal supplies a quadripole designed as a gyrator
- Output feeds a series circuit formed of a capacitor C1 and the primary coil 1, wherein the series circuit has a resonant frequency as a series resonant circuit, which corresponds to the frequency of the AC voltage.
- the gyrator 60 with the sizing of his between his
- a capacitor C2S is connected in series, wherein the series circuit thus formed is connected in parallel with a capacitor C2P.
- the voltage drop across the capacitor C2P is fed to a rectifier, which via an inductance LG for smoothing a loading of the battery with battery voltage UB.
- M L12 is the coupling inductance between primary coil 2 and secondary coil 1.
- the primary-side current i1 of the gyrator acting as a current source is effective, and on the secondary side, the current i2.
- G1 L1 1 / w1 / w1
- G2 L22 / w2 / w2
- L12 M is the coupling inductance of the primary coil to the secondary coil
- L1 1 is the self-inductance of the primary winding
- L22 is the self-inductance of the secondary winding
- G1 is the primary magnetic conductance
- G2 is the secondary magnetic conductance
- GM is the magnetic coupling conductance
- FIG. 8 shows a radial section through a transformer. The section thus represented must therefore be rotated around the ordinate direction in order to produce the body of revolution.
- a smaller extent of the primary winding 2 is provided in a direction parallel to the traversing plane and / or surface of the bottom.
- the transformer is also designed resonantly in the same way and the inductive energy transmission can be carried out in the same way, ie in the same way with the same efficiency.
- FIG. 10 shows a primary coil 2 arranged in a depression of the bottom 3, which is dimensioned such that an optimized efficiency can be achieved with two different sized secondary coils. These secondary coils are with different capacitors
- Figure 1 1 and Figure 12 different sized secondary coils.
- Figure 1 1 so the smaller design of the secondary coil in comparison to the embodiment of Figure 12, the following values can be achieved:
- a magnetic shield 80 in particular aluminum, is provided on the side of the secondary coil facing away from the floor on the vehicle. This is thus arranged between the secondary coil and the rest of the vehicle.
- an 80 magnetic shield 80 in particular aluminum, can be arranged on the side of the respective primary coil facing away from the vehicle.
- another energy storage is used instead of the battery, in particular an accumulator or an Ultracap or a combination of the aforementioned energy storage.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016008659 | 2016-07-20 | ||
PCT/EP2017/025186 WO2018015024A2 (de) | 2016-07-20 | 2017-06-29 | System zur induktiven energieübertragung an ein auf einer verfahrfläche, insbesondere verfahrebene, bewegbar angeordnetes fahrzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3488452A2 true EP3488452A2 (de) | 2019-05-29 |
Family
ID=59258176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17734244.1A Ceased EP3488452A2 (de) | 2016-07-20 | 2017-06-29 | System zur induktiven energieübertragung an ein auf einer verfahrfläche, insbesondere verfahrebene, bewegbar angeordnetes fahrzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3488452A2 (de) |
DE (1) | DE102017006197A1 (de) |
WO (1) | WO2018015024A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018216916A1 (de) * | 2018-10-02 | 2020-04-02 | Universität Stuttgart | Einrichtung zur kontaktlosen induktiven Energieübertragung, insbesondere für induktive Ladevorgänge bei Kraftfahrzeugen |
WO2023094253A1 (de) * | 2021-11-29 | 2023-06-01 | Sew-Eurodrive Gmbh & Co. Kg | System zur induktiven übertragung elektrischer leistung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010021866B4 (de) * | 2010-05-28 | 2021-09-30 | Sew-Eurodrive Gmbh & Co Kg | Vorrichtung zur berührungslosen Energieübertragung und Verfahren zum Betreiben |
JP5970158B2 (ja) * | 2011-02-10 | 2016-08-17 | 国立大学法人埼玉大学 | 非接触給電装置 |
WO2014035263A1 (en) * | 2012-08-31 | 2014-03-06 | Auckland Uniservices Limited | Improved efficiency non-self tuning wireless power transfer systems |
WO2015141732A1 (ja) * | 2014-03-18 | 2015-09-24 | 株式会社Ihi | 非接触給電システムと車両給電装置 |
DE102014218217A1 (de) * | 2014-09-11 | 2016-03-17 | Continental Automotive Gmbh | Vorrichtung zum induktiven Laden eines Fahrzeuges |
US10141748B2 (en) * | 2014-12-19 | 2018-11-27 | Ford Global Technologies, Llc | Inductive wireless power transfer systems |
-
2017
- 2017-06-29 EP EP17734244.1A patent/EP3488452A2/de not_active Ceased
- 2017-06-29 DE DE102017006197.1A patent/DE102017006197A1/de active Pending
- 2017-06-29 WO PCT/EP2017/025186 patent/WO2018015024A2/de unknown
Also Published As
Publication number | Publication date |
---|---|
DE102017006197A1 (de) | 2018-01-25 |
WO2018015024A2 (de) | 2018-01-25 |
WO2018015024A3 (de) | 2018-03-15 |
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