EP3853927A1 - Verfahren zum trennen einer batterie - Google Patents
Verfahren zum trennen einer batterieInfo
- Publication number
- EP3853927A1 EP3853927A1 EP19773031.0A EP19773031A EP3853927A1 EP 3853927 A1 EP3853927 A1 EP 3853927A1 EP 19773031 A EP19773031 A EP 19773031A EP 3853927 A1 EP3853927 A1 EP 3853927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- switching
- battery cells
- component
- switching units
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a method for disconnecting a battery, in particular a high-voltage battery, with at least two battery cells from at least one electrical component of a vehicle.
- the invention relates to a device for performing the method.
- the battery of the vehicle is separated from the power electronics by a relay. It is also known that the relay is opened in emergency situations, e.g. B. in an accident. Usually, one relay is integrated in a positive “highside” path and another relay in a negative “lowside” path, the paths denoting the two lines that connect the battery to the electrical machine.
- the document DE 10 2015 002 069 A1 discloses a battery cell for a battery of a motor vehicle. The can be via two electrical connections
- Battery cell can be connected to other battery cells of the battery. It is also described that a transport condition can be provided for the battery.
- the invention relates to a method with the features of
- a method for disconnecting a (in particular rechargeable) battery, preferably a high-voltage battery, with at least two battery cells from at least one electrical component, in particular drive component, of a vehicle is particularly protected.
- the separation advantageously takes place when the component, in particular the drive component, is switched off, which is preferably designed as an electric motor or as an electrical machine (electric machine).
- the electrical component can be designed as power electronics and / or as an electrical consumer of an electrical system of the vehicle.
- the electrical component can be designed as a high-voltage component and / or as a drive component of the vehicle, such as an electric motor. Accordingly, it is possible that the battery as one
- Rechargeable high-voltage battery is designed to supply energy to the high-voltage component in order to enable the vehicle to move around.
- the battery is a 400 V or 800 V battery.
- the vehicle is a passenger vehicle or a truck or the like is trained.
- the vehicle is advantageously designed as an electric vehicle which has a hybrid drive or exclusively an electric drive.
- the component can be a component of a high-voltage drive train of an electric machine of the vehicle. It is therefore possible with such electric vehicles that a topology comprising a high-voltage battery pack (ie the battery), intermediate circuit and power electronics of the electric machine is provided.
- Switching units are provided and in particular integrated into the battery cell. It is also possible for all the battery cells of the battery to have these two switching units, and thus to be able to be separated from the component. This allows the battery to be completely disconnected from the
- the battery cells (in particular each in
- the respective switching units can be electrically connected to the component, so that an energy supply for the component is produced by the battery. This enables operation of the component, e.g. Legs
- the following steps for separating from the component can be carried out, preferably in succession in the order given or in any order, it being possible for individual steps to be carried out repeatedly:
- Battery cells in particular step by step after the previous switching has taken place, preferably until all switching units of all battery cells have been switched.
- At least two battery cells of the battery can each be electrically separated from the at least one component via at least two switching units.
- the switching can concern both a closing and an opening, the switching units z. B. each as
- Switching therefore particularly does not concern mechanical switching (mechanical opening or
- relays that spark gaps can occur due to the mechanical separation in the DC voltage line. It is often technically complex to avoid a possible defect (such as sticking) of the relay. In addition, the use of relays is associated with higher costs. These disadvantages can also be at least reduced if necessary by a method according to the invention.
- the relays which usually connect the battery to the component and / or are integrated in the highside and / or lowside path, are omitted in a method and / or a device according to the invention.
- the switching units can be used which are not designed as relays and / or are designed as electronic switching units and / or are integrated in the battery cells. The failure speed compared to the relay can thus be reduced. The installation space can also be saved.
- the separation and / or the implementation of the described method steps of a method according to the invention can, for. B. can be initiated when an electronics of the vehicle detects an operator request to stop the engine of the vehicle and / or an emergency in the vehicle. It can be advantageous in a method according to the invention that the switching of the at least two switching units of at least the second (and possibly further) of the battery cells is carried out step by step, in each case after the preceding switching has taken place. In other words, a first of the two switching units (a specific battery cell) can be switched and only after a delay time a second of the two switching units (the specific battery cell). This switching sequence can then be repeated for other battery cells if necessary.
- Switching units per battery cell can thus also take place sequentially from battery cell to battery cell. In this way, voltage and / or
- a switching time per switching unit and / or the delay time can be, for example, in the range from 1 ns to 100 ns, preferably 10 ns to 50 ns.
- the switching time or delay time is preferably less than 100 ns, which can result in a total time for disconnecting a few 10 ps for the battery. This also reduces the time for disconnection compared to the relay. An improved and controlled safe state can thus be generated.
- step b) is only carried out after step a) and in particular each further step-by-step switching after the previous switching only when a connection condition is present, preferably the step-by-step switching in each case time and / or takes place as a function of current, preferably as a function of electrical current detection in the
- the switching according to step b) can also take place as a function of an electrical current detection in the current path of the switching unit used for switching according to step a).
- the switching according to step b) can also take place as a function of an electrical current detection in the current path of the switching unit used for switching according to step a).
- Switching condition be an exceeding or falling below or reaching a predetermined current, which is detected in particular in the switching unit used for this switching after switching in the current path.
- the two switching units are each switched sequentially after a delay time.
- the delay time can be specified, for example, by electronics in the battery cell (in particular by corresponding activation of the switching units by the electronics). Appropriate electronics are integrated, for example, in each of the battery cells of the battery.
- the at least two switching units may also be designed as at least one coupling switching unit and one short-circuit switching unit, the coupling switching unit preferably being integrated in a current path (serial to) of the respective battery cell, and the
- Short-circuit switching unit is integrated in a current path parallel to the respective battery cell, wherein preferably these switching units can be switched sequentially for disconnection. All battery cells or switching units of the battery cells can be designed in accordance with this arrangement. In order to separate one of the battery cells from the component, the
- Short-circuit switching unit of this battery cell is closed and only then (e.g. after a delay time) are the coupling switching unit of this battery cell opened. This process can be repeated for the complete (electrical) disconnection of the battery for the other battery cells.
- the disconnection can be understood to mean that the disconnection does not take place in the sense of a physical disconnection of the electrical connection, but instead takes place electrically in such a way that an electrical current flow is blocked by electronic switches (such as transistors or field effect transistors).
- the switching units can accordingly be such electronic switches, preferably
- Circuit breakers act.
- the short-circuit switching unit of the respective battery cell is first switched, in particular closed, and after a delay time for the respective disconnection of the battery cells
- Coupling switching unit switched in particular is opened. So that's a reliable separation of the battery cells possible. This switching pattern can be repeated sequentially for additional battery cells.
- Battery cells are separated one after the other. In this way, the voltage or electrical current supplied by the battery to the component can be reduced step by step.
- the battery as a high-voltage battery, for. B. 400 V (volt) or 800 V battery is executed.
- the switching units can be integrated in the battery. This enables a very space-saving design.
- the invention also relates to a device for separating a battery with at least two battery cells from at least one electrical component of a vehicle. It is provided here that the device is designed to carry out a method according to the invention.
- the device according to the invention thus brings with it the same advantages as have been described in detail with reference to a method according to the invention.
- FIG. 1 is a schematic representation for visualizing a method according to the invention
- Fig. 2 is a schematic representation of a
- Fig. 3 is a schematic representation of a sequence of a method according to the invention.
- a method according to the invention is schematically visualized on the basis of FIGS. 1 to 3, component 11 being in particular a drive component 11 of a vehicle 10.
- component 11 being in particular a drive component 11 of a vehicle 10.
- This is powered and operated by a battery 12, in particular a high-voltage battery 12.
- the battery 12 can be connected to the component 11 via two current paths 15, 16 (highside 15 and lowside 16).
- FIG. 2 shows a device 100 according to the invention for carrying out a method according to the invention with further details.
- At least two battery cells 30a, 30b of the battery 12 can be electrically connected to the at least one component 11 via at least two respective switching units 20a, 20b and thus connected.
- each of the battery cells 30 has at least two
- Switching units 21 are assigned, wherein the battery cells 30 are each electrically connected to the component 11 as a function of the at least two switching units 21, so that the battery 12 provides an energy supply for the component 11.
- the battery 12 can have a first battery cell 30a, a second battery cell 30b and possibly further battery cells 30 up to an nth battery cell 30n.
- Each of these battery cells 30 can have at least two or exactly two
- Switching units 20 can be assigned. Accordingly, at least two first Switching units 20a of the first battery cell 30a, at least two second switching units 20b of the second battery cell 30b and at least two nth switching units 20n of the nth battery cell 30n can be assigned (n is an arbitrary integer).
- the at least two switching units 20 each
- Battery cell 30 can also be divided into a coupling switching unit 22 and a short-circuit switching unit 23.
- the coupling switching unit 22 is, for example, integrated in the same current path 21 as that of the associated battery cell 30.
- the short-circuit switching unit 23 is, for example, with the others
- Short-circuit switching units 23 integrated in a current path, which from the intermediate circuit of the vehicle or from component 11 to one
- the coupling units 22 can be any coupling units 22.
- Battery cells 30 can be provided and switched on and / or disconnected step by step, only at least 5 or at least 10 or at least 20 or at least 20 battery cells 30 being connected and / or subsequently disconnected only by way of example.
- the at least one respective switching unit 20 can comprise at least one coupling switching unit 22 and one short-circuit switching unit 23, which is assigned to the respective battery cell 30 and which can be switched over alternately to connect and / or disconnect this battery cell 30.
- FIG. 3 a step-by-step connection and first a step-by-step disconnection are first visualized for a better understanding of the invention.
- Component 11 shown over time t.
- connection or disconnection can only take place if there is an activation condition for the previous connection or disconnection. This can be done by switching on or disconnecting step by step in Dependence on an electrical current detection in the current path, the switching unit 20 used for this connection or disconnection.
- connection can, for. B. until a total voltage U is reached by a voltage 2 of the battery 12.
- the switching unit S2_n (shown in FIG. 2) can be closed and Sl_n opened. A period of time can then be waited until current 3 has decayed (i.e. remained at 0 amperes). In this way, the maximum current of the current 3 is limited. This can e.g. B. timed or current controlled by electronics in the battery 12. Subsequently, the switching unit S2_2 can be closed and the
- Switching unit Sl_2 can be opened. Also after the existence of the
- a connection condition in particular the duration, can be a third
- Switch on lc take place.
- the connection can be carried out several times for the further battery cells 30, up to an nth connection ln, in which a switching unit S2_l is closed and a switching unit S1_l is opened.
- the switching units which are assigned to a common battery cell 30, can optionally be opened mutually. When all switches Sl_l to Sl_n are open and all switches S2_l to S2_n are closed accordingly, the full intermediate circuit voltage is present and the power electronics can start the electric motor 11 or component 11.
- the at least two switching units 21 of a first battery cell 30a of the battery cells 30, and then on, can be switched according to a method according to the invention
- the at least two switching units 21 of at least one second battery cell 30b of the battery cells 30 are switched.
- the switching can also be carried out for further battery cells 30, so that first a first disconnection 2a of the first battery cell 30a takes place by the switching unit S1_l being closed and the switching unit S2_l being opened after a delay time.
- the switching unit S1_2 can then be closed and S2_2 opened in order to separate the second battery cell 30b Battery cells 30 perform.
- a third separation 2c can be carried out accordingly for a further battery cell 30.
- an nth disconnection can be done by closing the switching unit Sl_n and opening the
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018216125.9A DE102018216125A1 (de) | 2018-09-21 | 2018-09-21 | Verfahren zum Trennen einer Batterie |
PCT/EP2019/074916 WO2020058295A1 (de) | 2018-09-21 | 2019-09-17 | Verfahren zum trennen einer batterie |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3853927A1 true EP3853927A1 (de) | 2021-07-28 |
Family
ID=67999634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19773031.0A Pending EP3853927A1 (de) | 2018-09-21 | 2019-09-17 | Verfahren zum trennen einer batterie |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210167473A1 (de) |
EP (1) | EP3853927A1 (de) |
CN (1) | CN112714979B (de) |
DE (1) | DE102018216125A1 (de) |
WO (1) | WO2020058295A1 (de) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5133926B2 (ja) * | 2009-03-26 | 2013-01-30 | 株式会社日立製作所 | 車両用電池システム |
FR2976737B1 (fr) * | 2011-06-17 | 2013-07-19 | Commissariat Energie Atomique | Element de batterie securise |
BR112014016413A8 (pt) * | 2012-02-08 | 2021-08-24 | Uk LEE Chong | bateria reconfigurável e método para reconfigurar uma bateria |
DE102012205395A1 (de) | 2012-04-03 | 2013-10-10 | Robert Bosch Gmbh | Batteriesystem, Verfahren zum Laden von Batteriemodulen, sowie Verfahren zum Balancieren von Batteriemodulen |
EP2811548B1 (de) * | 2013-06-07 | 2017-08-09 | Autoliv Development AB | Batteriemodul mit Trennanordnung |
CN105216632A (zh) * | 2014-06-30 | 2016-01-06 | 观致汽车有限公司 | 用于车辆电池组管理***和方法 |
JP2016140156A (ja) * | 2015-01-26 | 2016-08-04 | トヨタ自動車株式会社 | 蓄電装置の制御装置 |
DE102015002069B4 (de) | 2015-02-18 | 2022-01-27 | Audi Ag | Batterie und Kraftfahrzeug |
US10998738B2 (en) * | 2015-03-24 | 2021-05-04 | Seung Gyu Lee | Fusible switch, battery control apparatus including same, and battery control method |
CN106233915B (zh) * | 2015-06-03 | 2020-05-26 | 南京德朔实业有限公司 | 电动工具及其控制方法 |
DE102015215797A1 (de) | 2015-08-19 | 2017-02-23 | Robert Bosch Gmbh | Batterie mit integrierter Entladeschaltung |
CN205573644U (zh) * | 2016-03-14 | 2016-09-14 | 宝沃汽车(中国)有限公司 | 纯电动汽车的动力源***和纯电动汽车 |
CN106848444A (zh) * | 2016-11-25 | 2017-06-13 | 惠州市蓝微新源技术有限公司 | 一种电池组降压方法及降压电路 |
DE102016224002A1 (de) * | 2016-12-02 | 2018-06-07 | Audi Ag | Entladen von einem wenigstens zwei Batteriezellen aufweisenden Batteriemodul einer wenigstens zwei Batteriemodule aufweisenden Batterie |
DE102017222192A1 (de) * | 2017-12-07 | 2019-06-13 | Audi Ag | HV-Batterieanordnung für ein Kraftfahrzeug, Bordnetz, Kraftfahrzeug und Verfahren zum Steuern einer HV-Batterieanordnung |
-
2018
- 2018-09-21 DE DE102018216125.9A patent/DE102018216125A1/de active Pending
-
2019
- 2019-09-17 US US17/267,999 patent/US20210167473A1/en active Pending
- 2019-09-17 EP EP19773031.0A patent/EP3853927A1/de active Pending
- 2019-09-17 WO PCT/EP2019/074916 patent/WO2020058295A1/de unknown
- 2019-09-17 CN CN201980061471.4A patent/CN112714979B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE102018216125A1 (de) | 2020-03-26 |
CN112714979B (zh) | 2024-04-26 |
WO2020058295A1 (de) | 2020-03-26 |
CN112714979A (zh) | 2021-04-27 |
US20210167473A1 (en) | 2021-06-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3479455B1 (de) | Energiespeichereinrichtung für einen kraftwagen | |
EP3481675B1 (de) | Batterieanordnung für ein kraftfahrzeug | |
EP2996899B1 (de) | Vorladen eines kraftfahrzeug-hochvoltnetzes | |
EP2510613B1 (de) | Wechselrichteranordnung zum betreiben eines elektromotors | |
WO2015082113A1 (de) | Bordnetz zur fehlertoleranten und redundanten versorgung | |
DE102018203489B4 (de) | Wechselstromladevorrichtung für ein Kraftfahrzeug und Verfahren zum Betreiben einer Wechselstromladevorrichtung für ein Kraftfahrzeug | |
DE102017114339A1 (de) | Sichere Energieversorgungseinrichtung für ein Fahrzeug | |
DE102015206627A1 (de) | Selbstsichernder Umrichter | |
EP3894266A1 (de) | Schaltungsanordnung für ein kraftfahrzeug, insbesondere für ein hybrid- oder elektrofahrzeug | |
DE102021201468B3 (de) | Architektur und Schaltungstopologie zur Sicherstellung einer schaltbaren allpoligen galvanischen Trennung in Hochvoltbatteriesystemen | |
EP3599125A1 (de) | Traktionsnetz und verfahren zum betreiben eines traktionsnetzes eines elektrisch angetriebenen fahrzeugs im kurzschlussfall | |
EP2877366A2 (de) | Elektrische schaltungsanordnung für ein elektrisch angetriebenes fahrzeug, fahrzeug und entsprechendes verfahren | |
EP2573928A1 (de) | Überstrombegrenzung und Rückstromsperre in einem Zwischenkreisumrichter zur Ansteuerung einer Wechselstrommaschine | |
WO2019170475A1 (de) | Wechselstromladevorrichtung für ein kraftfahrzeug und verfahren zum betreiben einer wechselstromladevorrichtung für ein kraftfahrzeug | |
DE102021001678A1 (de) | Elektrisches Bordnetz für ein Kraftfahrzeug und Diagnoseverfahren für einen in diesem Bordnetz angeordneten Batterie-Schutzschalter | |
DE102018004625A1 (de) | Ladeverfahren und Ladevorrichtung zum Laden eines ersten und eines zweiten elektrisch betriebenen Fahrzeugs | |
DE102006051831A1 (de) | Unterseeboot | |
DE102010050347B3 (de) | Vorrichtung und Verfahren zur Herstellung eines sicheren Betriebszustands eines Hochspannungszwischenkreises eines Elektrofahrzeugs | |
DE102015016651A1 (de) | Ladeeinrichtung für ein Kraftfahrzeug und Verfahren zum Aufladen einer Batterie | |
EP3925835B1 (de) | Bordnetz für ein fahrzeug | |
DE102019200861A1 (de) | Entladeschaltung für einen Zwischenkreis | |
DE102011011798A1 (de) | Verfahren zum Betreiben eines Energiespeichers für ein Fahrzeug sowie entsprechender Energiespeicher, Spannungsversorgung und Fahrzeug | |
DE102014019119A1 (de) | Antriebsvorrichtung für ein Kraftfahrzeug | |
WO2020058295A1 (de) | Verfahren zum trennen einer batterie | |
DE102015008445A1 (de) | Verfahren und Betrieb eines elektrischen Bordnetzes eines Kraftfahrzeugs und Kraftfahrzeug |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210421 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |