WO2022199987A1 - Klein bauende deformationsdetektionsvorrichtung für einen energiespeicher - Google Patents
Klein bauende deformationsdetektionsvorrichtung für einen energiespeicher Download PDFInfo
- Publication number
- WO2022199987A1 WO2022199987A1 PCT/EP2022/054956 EP2022054956W WO2022199987A1 WO 2022199987 A1 WO2022199987 A1 WO 2022199987A1 EP 2022054956 W EP2022054956 W EP 2022054956W WO 2022199987 A1 WO2022199987 A1 WO 2022199987A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- detection device
- energy storage
- deformation
- sensing element
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000004146 energy storage Methods 0.000 claims abstract description 57
- 238000011156 evaluation Methods 0.000 claims abstract description 29
- 230000008859 change Effects 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 28
- 230000006378 damage Effects 0.000 claims description 22
- 230000005684 electric field Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 11
- 238000009434 installation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 210000000352 storage cell Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/22—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in capacitance
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0038—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to sensors
-
- 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
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
-
- 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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- 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
Definitions
- the invention relates to a deformation detection device for an energy storage assembly integrated into a vehicle support structure of a motor vehicle, as well as a vehicle information system and an energy storage assembly with such a deformation detection device; also a motor vehicle.
- the invention relates to a method for detecting a deformation of an energy storage assembly.
- the installation space available in the vertical direction of the vehicle is severely limited.
- sufficient robustness of the high-voltage battery must be ensured against mechanical stress from outside, especially against stresses that are not introduced via functional chains that are determined for the entire vehicle.
- DE 10 2018 200 919 A1 also discloses a detection device for detecting a mechanical deformation of a high-voltage battery of a motor vehicle, comprising: a sensor element that detects an electrical measured variable, the sensor element being of essentially two-dimensional design and being at least partially connected to a first component of the High-voltage storage is applied; and an evaluation device for analyzing the electrical measured variable between the sensor element and a second component of the high-voltage battery and for outputting a corresponding warning message based on the electrical measured variable, with at least one area of the surface of the second component being electrically conductive.
- a deformation detection device having the features of claim 1, a vehicle information system having the features of claim 9, an energy storage assembly having the features of claim 10, a motor vehicle having the features of claim 11, and a method for detecting a deformation of a Energy storage assembly with the features of claim 12.
- the dependent claims relate to advantageous developments of the invention.
- a deformation detection device for an energy storage assembly integrated into a vehicle support structure of a motor vehicle with an energy storage and a housing structure is disclosed.
- the deformation detection device has at least:
- an outer, electrically conductive sensing element which is designed as one or on or with an outer housing structure element, ie in particular glued onto it, integrated therein and/or in one piece or identical to it.
- an inner, electrically conductive sensing element which is designed as or on (i.e. with and/or on) an inner energy storage element, in particular glued to it, integrated therein and/or in one piece or identical to it and in a regular Vehicle operation is invariably spaced from the outer sensing element.
- the inner sensing element can be the cell contact system of all or part of the energy storage cells, or part thereof.
- an evaluation unit that is set up to detect a change, in particular a reduction, in an electrical operating parameter, in particular a capacitance, resulting in particular from a deformation and/or displacement (in relation to the inner sensing element) of the outer sensing element a charge of a capacitor formed by the inner sensing element and the outer sensing element.
- the detection can take place indirectly, in that a voltage present at the capacitor is detected and evaluated.
- the energy storage assembly is in particular an electric traction battery with a plurality of battery modules and/or cells, which are accommodated with a battery management system in a load-bearing housing.
- energy storage device integrated into a vehicle support structure is to be understood in particular as an energy storage device whose housing not only has the functions of protecting the energy storage cells and battery management from environmental influences and the environment from the stored electrical and/or thermal energy is designed and set up to carry loads from a weight and/or driving dynamics and/or a crash contact of the vehicle and/or absorb them and/or brace them against other carrier components.
- an outer housing structure element is to be understood in particular as a component part of a lower housing structure of the energy store.
- the outer housing structural element is designed in the form of a shell and/or trough and/or in the form of a shear box.
- the outer sensing element is embodied by the outer housing structural member.
- the outer sensing element is applied to the outer structural element of the housing, for example in the form of a printed conductor track that is glued on.
- At least one electrically insulating component is arranged between the outer and the inner sensing element of the capacitor in order to ensure the field structure.
- a damping material such as a suitable hardened foam, can be provided between the outer and the inner sensing element of the capacitor to absorb loads in the event of deformation.
- the energy store itself is in particular a high-voltage store in the vehicle, for example in the sense of a traction battery.
- the energy storage device has in particular a plurality of electrochemical battery cells connected in series and/or in parallel with one another and/or can consist of a plurality of cells in series with one another and/or battery modules connected in parallel with several battery cells.
- the damping material occupies much or all of the space between the outer and inner sensing elements of the capacitor. Due to the load-carrying capacity of the damping material, the dimensioning of the capacitor in the vertical direction of the vehicle can be further reduced.
- the sensing elements and the electrically insulating component are arranged alternately parallel to one another, with the electrically insulating component being arranged at a distance from both sensing elements, for example in the middle, and/or being surrounded by the damping material.
- the outer sensing element is part of a housing structure of the energy storage assembly that is lower in the vertical direction of the vehicle in order to save further installation space in the vertical direction of the vehicle.
- a vehicle information system which, in particular, has a deformation detection device according to one embodiment of the invention and an output means which is set up and designed to output information to at least one vehicle user.
- the output means is also set up to notify a vehicle occupant, in particular a driver, when a field change limit value is exceeded, in particular a limit value for a change in the electrical operating parameter of the capacitor formed by the inner and outer sensing element, for example a voltage limit value and/or another occupant, and/or a vehicle environment to issue a warning message that can be reliably perceived in particular.
- the consequences of damage to the energy storage assembly can be minimized, especially with regard to personal injury, but possibly also with regard to property damage, in particular by advising the warning message to visit the workshop immediately or to park the vehicle in an empty open space as quickly as possible or to leave the damaged vehicle immediately becomes.
- the warning message is output after a corresponding activation by means of the evaluation unit.
- exceeding the limit value represents a presumed exceeding of a mechanical load limit of the energy storage assembly, which is why the limit value is set at the selected level.
- the output means is set up to output the warning message in a way that ensures that the message is perceived by the intended recipient(s), for example by the output means having a screen and/or a loudspeaker and/or a warning lamp and/or a particularly a steering wheel of the vehicle has an integrated, haptic warning device.
- an energy storage assembly for a motor vehicle comprising a deformation detection device according to an embodiment of the invention.
- a motor vehicle is disclosed with an energy storage assembly that is part of a vehicle support structure of the motor vehicle.
- the motor vehicle has in particular a vehicle information system according to one embodiment of the invention.
- a method for detecting a deformation of an energy storage assembly is disclosed, which is designed in particular according to an embodiment of the invention.
- the method has at least the following method steps:
- the method makes use of the fact that when a mechanical stress limit of the electrical contacting means for the evaluation unit is exceeded, the electrical field of the capacitor, which is formed with the inner and the outer sensing element, has a known electrical field strength that changes with a specific deformation (for example different strength and/or at a different point) changes measurably in a predeterminable way.
- the field change can be measured via a change in the electrical voltage between the two sensing elements.
- the field change is pre-determined, for example, when data is entered into a characteristic map for different operating states and/or different deformations of the energy storage assembly during vehicle development by means of tests.
- the evaluation unit is set up to apply an electric field of known electric field strength between the two sensing elements when the motor vehicle is in the intended operating state and/or to apply a change, in particular an unforeseen change, in an electric field present between the two sensing elements when a mechanical stress limit of the lower housing structure of the vehicle structure-integrated component is exceeded.
- the evaluation unit is set up to detect and/or evaluate manifestations of an electrical voltage applied to the capacitor, and in particular its change, because this detects changes in the capacitance and/or the charge of the capacitor (and thus deformations). can become.
- the evaluation unit is set up to detect a deformation when a field change limit value is exceeded. This allows Field changes caused by dynamic loads from regular ferry operations can be differentiated from damage events.
- the evaluation unit is set up to detect a permanent deformation if, following a detected field change, a new field strength that differs from the old field strength is constant.
- the evaluation unit has a damage determination logic that is set up to assign different damage classes to changes in the detected field strength that are different in magnitude and/or are localized differently and/or last for different durations.
- a predetermined breaking point in particular a mechanical one, for its electrical conductivity is arranged on the inner sensing element, which is designed in such a way that it triggers at a predetermined stress limit of an environmental protection of the energy storage device, in particular mechanically fails with the loss of the electrical contacting effect.
- the inner sensing element is equipped with an electrical contacting medium for at least one electrical energy storage unit of the energy storage device. is formed, an automatic electrical decoupling of the energy storage unit, possibly of the entire energy storage device, can be achieved as a result; otherwise a clearly measurable change in the electrical field picked up by the evaluation unit.
- the deformation detection device has two or more capacitors that can be sensed separately by means of the evaluation unit, which are each formed by means of an inner sensing element and by means of an outer sensing element, and their arrangement area, in particular with regard to an extension in a horizontal vehicle plane, with regard to an extension along a vehicle longitudinal direction and/or along a vehicle transverse direction.
- the damage class to be assigned can then also be based on local differences in the resilience of the energy storage device. It can also be taken into account that the same load application at a first point of an energy store may cause less damage than at another point.
- the electrically insulating component can still be designed in one piece, or can be divided analogously to the division of the capacitors.
- the capacitors and the electrically insulating component are designed in several parts to correlate with each other in segments, with the electric field of known electric field strength changing in segments if a mechanical load limit of the lower housing structure and/or a possibly assigned field change limit value for the evaluation unit is exceeded measurably changes.
- the evaluation unit is a control device arranged in the energy storage assembly.
- the evaluation unit can be designed as a logical and/or physical part of a battery management system.
- FIG. 1 shows a schematic sectional view of an energy storage assembly with a deformation detection device according to an exemplary embodiment of the invention.
- FIG. 2 shows a flowchart with steps of a method for detecting a deformation of the energy storage assembly from FIG. 1.
- FIG. 3 shows method steps of an exemplary method for detecting a deformation of the energy storage assembly from FIG. is trained.
- the motor vehicle 1 has an energy storage assembly 2, which is part of a vehicle support structure 4 of the motor vehicle, here the vehicle underbody.
- the energy storage assembly 2 has an energy storage 12 with a plurality of Bat tery cells 14, round cells here, and a housing structure 16 with a housing trough 18 and a housing cover 20, which is formed by a vehicle floor component of the vehicle support structure 4.
- the housing trough 18 and the vehicle floor component of the vehicle support structure 4 are sealed against one another in a fluid-tight manner, so that the energy store is decoupled from the environment in this respect.
- the motor vehicle 1 has a vehicle information system 6 .
- the vehicle information system 6 has a deformation detection device 8 for the energy storage assembly 2 and an output means 10 for the deformation detection device 8 .
- the deformation detection device 8 has an outer, electrically conductive sensing element 22 which is formed by a metallic housing structure element, here a base plate of the housing trough 18 .
- the deformation detection device 8 also has an inner, electrically conductive sensing element 24 which is formed by a cell contacting system 23 of the energy store 12 and is therefore arranged at a constant distance from the outer sensing element 22 during regular vehicle operation.
- a damping material 30 is arranged between the outer and the inner sensing element, here a suitable, hardened foam for load absorption in the case of deformation.
- the inner sensing element 24 and the outer sensing element 22 thus form a capacitor 32 together with the electrically insulating component 28 .
- the deformation detection device 8 also has an evaluation unit 26 which is set up to detect a change in an electrical voltage V present at the capacitor.
- Such a change can result in particular from a deformation D and/or displacement of the outer sensing element 22, which in turn is caused by a force F from outside the vehicle, typically when the vehicle floor hits a sharp or angular obstacle.
- a capacitor-based sensor can help save installation space in a vehicle vertical direction z.
- an electric field of known electric field strength is applied between the two sensing elements 22, 24 in an intended operating state of the motor vehicle 1.
- the potential change can be detected by a voltage sensor 34 and measured by the evaluation unit 26 . As a result, even the smallest deformations D and/or displacements of the outer sensing element 22 can be detected.
- a deformation is detected when a first voltage limit value is exceeded, which stands for a certain strength of the field change at the capacitor 32 and thus for a certain type of deformation D.
- a first voltage limit value which stands for a certain strength of the field change at the capacitor 32 and thus for a certain type of deformation D.
- the evaluation unit can be programmed in such a way that it sets a deformation flag only when a new field strength that differs from the old field strength occurs after a detected field change. This enables a distinction to be made between elastic and plastic deformations of the outer sensing element.
- the evaluation unit 26 has a damage determination logic 36, by means of which changes in the detected voltage V of different magnitudes differ strong deformations and thus assigned to different damage classes. In this way, different reactions of the vehicle information system 6 can be triggered in different cases of damage.
- a mechanical predetermined breaking point 38 can be arranged on the inner sensing element 24, which at a predetermined load limit below Loss of the electrical contacting effect mechanically failed, so that the energy storage cells are no longer involved in the drive circuit because the inner sensing element 24 in the cell contacting system 23 is formed.
- the output means 10 is set up to output a warning message to a vehicle occupant and/or a vehicle environment when a voltage limit value V_G is exceeded with a corresponding control by the evaluation unit 26, for example by means of a combined audio and screen warning message M.
- the screen warning message contains present instructions for action, which may differ depending on the location or the severity of the deformation D detected.
- FIG. 2 an energy storage assembly 102 is shown, which differs from the energy storage assembly 2 of FIG Force F* results.
- the deformation detection device 108 has a plurality of inner sensing elements 124, 125 which are electrically separate from one another and whose arrangement area differs from one another with regard to an extension along a vehicle longitudinal direction x and/or along a vehicle transverse direction y.
- the electrically insulating component 28 and the outer sensing element 24 can each be designed in one piece, independently of the division into a plurality of capacitors 132, 133.
- Fig. 3 shows method steps of an exemplary method for detecting a deformation of the energy storage assembly 2 from Figure 1.
- step S10 an electrical operating parameter V of a capacitor 32 formed by the inner sensing element 24 and the outer sensing element 26 is monitored.
- step S20 a sensed change in the electrical operating parameter V is compared with a limit value V_G, which is representative of a potentially damaging deformation D.
- a warning message M is output to a vehicle occupant and/or the vehicle environment in step S30.
- step S20 is carried out again—possibly with a predetermined time offset.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280019460.1A CN117083502A (zh) | 2021-03-26 | 2022-02-28 | 用于蓄能器的小型的变形检测装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021107733.8 | 2021-03-26 | ||
DE102021107733.8A DE102021107733A1 (de) | 2021-03-26 | 2021-03-26 | Klein bauende Deformationsdetektionsvorrichtung für einen Energiespeicher |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022199987A1 true WO2022199987A1 (de) | 2022-09-29 |
Family
ID=80683950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/054956 WO2022199987A1 (de) | 2021-03-26 | 2022-02-28 | Klein bauende deformationsdetektionsvorrichtung für einen energiespeicher |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN117083502A (de) |
DE (1) | DE102021107733A1 (de) |
WO (1) | WO2022199987A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010004471A1 (de) * | 2010-01-13 | 2011-07-14 | Li-Tec Battery GmbH, 01917 | Rahmen für eine elektrochemische Energiespeichereinrichtung |
US20140162098A1 (en) * | 2012-12-12 | 2014-06-12 | Asustek Computer Inc. | Battery module and detecting method thereof |
KR20150073392A (ko) * | 2013-12-23 | 2015-07-01 | 주식회사 엘지화학 | 배터리 스웰링 감지 시스템 및 방법 |
DE102018200919A1 (de) | 2018-01-22 | 2019-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Erfassungsvorrichtung zum Erfassen einer Deformation eines Gehäuses eines Hochvoltspeichers eines Kraftfahrzeugs |
DE102018200922A1 (de) * | 2018-01-22 | 2019-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Sensorvorrichtung zum Erkennen eines für einen Hochvoltspeicher eines Kraftfahrzeugs kritischen Zustands, Hochvoltspeicher sowie Kraftfahrzeug |
DE102019108371A1 (de) * | 2019-04-01 | 2020-10-01 | Bayerische Motoren Werke Aktiengesellschaft | Hochvoltbatterie mit Batteriezellenschwellungssensor sowie Kraftfahrzeug |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017212273A1 (de) | 2017-07-18 | 2019-01-24 | Bayerische Motoren Werke Aktiengesellschaft | Erfasssungsvorrichtung zum erfassen einer deformation eines gehäuses eines hochvoltspeichers eines kraftfahrzeugs |
-
2021
- 2021-03-26 DE DE102021107733.8A patent/DE102021107733A1/de active Pending
-
2022
- 2022-02-28 CN CN202280019460.1A patent/CN117083502A/zh active Pending
- 2022-02-28 WO PCT/EP2022/054956 patent/WO2022199987A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010004471A1 (de) * | 2010-01-13 | 2011-07-14 | Li-Tec Battery GmbH, 01917 | Rahmen für eine elektrochemische Energiespeichereinrichtung |
US20140162098A1 (en) * | 2012-12-12 | 2014-06-12 | Asustek Computer Inc. | Battery module and detecting method thereof |
KR20150073392A (ko) * | 2013-12-23 | 2015-07-01 | 주식회사 엘지화학 | 배터리 스웰링 감지 시스템 및 방법 |
DE102018200919A1 (de) | 2018-01-22 | 2019-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Erfassungsvorrichtung zum Erfassen einer Deformation eines Gehäuses eines Hochvoltspeichers eines Kraftfahrzeugs |
DE102018200922A1 (de) * | 2018-01-22 | 2019-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Sensorvorrichtung zum Erkennen eines für einen Hochvoltspeicher eines Kraftfahrzeugs kritischen Zustands, Hochvoltspeicher sowie Kraftfahrzeug |
DE102019108371A1 (de) * | 2019-04-01 | 2020-10-01 | Bayerische Motoren Werke Aktiengesellschaft | Hochvoltbatterie mit Batteriezellenschwellungssensor sowie Kraftfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
DE102021107733A1 (de) | 2022-09-29 |
CN117083502A (zh) | 2023-11-17 |
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