WO2021228666A1 - Vehicle having a battery holder - Google Patents

Vehicle having a battery holder Download PDF

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Publication number
WO2021228666A1
WO2021228666A1 PCT/EP2021/061934 EP2021061934W WO2021228666A1 WO 2021228666 A1 WO2021228666 A1 WO 2021228666A1 EP 2021061934 W EP2021061934 W EP 2021061934W WO 2021228666 A1 WO2021228666 A1 WO 2021228666A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
vehicle
battery holder
holder
end wall
Prior art date
Application number
PCT/EP2021/061934
Other languages
German (de)
French (fr)
Inventor
Igor Bier
Susanne Schneider
Original Assignee
Daimler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Ag filed Critical Daimler Ag
Publication of WO2021228666A1 publication Critical patent/WO2021228666A1/en

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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
    • 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
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/04—Arrangement of batteries
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • 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

Definitions

  • the invention relates to a vehicle with a battery holder and electrical battery cabling, according to the preamble of claim 1.
  • the electrical low-voltage power supply for the automatic emergency call system eCall prescribed by the European Union for new motor vehicle models, by means of which the driver can manually establish a telephone connection to the nearest rescue control center after an accident and which automatically sends an emergency call after a serious accident in which airbags have been deployed in the event of a frontal collision with the vehicle, the electrical low-voltage power supply, sometimes also called
  • Low-voltage power supply in particular 12-volt power supply, referred to, continue to be functional in order to ensure the functionality of the emergency call system.
  • the low-voltage power supply also serves to ensure that other important functions of the vehicle, such as the locking system for the vehicle doors, remain functional. In this respect, it is of great advantage if the low-voltage power supply can be maintained for at least one hour after the accident.
  • This low-voltage power supply is also required for various control units that control various functions of the vehicle.
  • a low-voltage battery of the vehicle When designing a vehicle, due to various specifications and / or spatial conditions, it may be necessary that a low-voltage battery of the vehicle has to be arranged in an area that is subjected to force in the event of a frontal accident that is due to deformations of the body and / or relocation of components, assemblies or the like acts on the battery or a battery holder accommodating it.
  • a holder for a battery in a motor vehicle which comprises a battery receiving element in the form of an upwardly open, rectangular container, so that five of the six side surfaces of the battery are covered by the receiving element. To secure the battery in place in the receiving element, the latter is surrounded at the top by a bracket element.
  • the battery receiving element is designed overall as a protective space or cage for the battery, which in the event of a collision is intended to withstand the loads and maintain its position within the vehicle.
  • the correspondingly massive and therefore relatively high weight battery receiving element is attached to an underside facing the roadway on the body of the vehicle, which makes accessibility during assembly significantly more difficult and also requires a large pack size for the receiving element.
  • the invention is therefore based on the object of creating a vehicle, in particular a vehicle with a battery holder and electrical battery cabling, the disadvantages mentioned not occurring.
  • the object is achieved in particular by creating a vehicle having a battery holder and electrical battery cabling, the battery holder being arranged in a front end area of the vehicle and below a front hood of the vehicle on a front wall of the vehicle that delimits an installation space provided in the front end area towards a passenger cell is.
  • the battery holder is designed to be rigid in such a way that a protective battery space formed within the battery holder remains intact when the force is applied as a result of a frontal collision with the vehicle.
  • the front wall of the vehicle is set up and arranged to be deformable when a predeterminable limit force is exceeded in such a way that the battery holder can be displaced against a vehicle travel direction and in the direction of the front wall; the front wall is preferably displaced and / or against the vehicle travel direction - by means of the battery holder deformed, in particular the battery holder can be displaced through the front wall of the vehicle into a battery accident protection area.
  • the electrical battery wiring which a battery that can be arranged in the battery holder connects to at least one electrical vehicle component, in particular a wiring harness of the vehicle, is designed in such a way that, in the event of a crash-related displacement of the battery holder back in the direction of the passenger cell, there is no electrical disconnection between the battery that can be arranged in the battery holder and the at least an electric vehicle component comes.
  • This can in particular achieve the advantage that the battery, in particular the low-voltage battery, preferably including all connections, is accessible for assembly, since after the low-voltage battery has been installed, the battery holder, in particular a baffle plate of the battery holder, i.e.
  • the one that can be installed last and / or part of the battery holder to be installed can be assembled at the end and the preferably multi-part construction of the battery holder consisting of baffle plate, struts and battery base plate, forms a protective battery space that protects the battery.
  • the battery holder in particular a baffle plate of the battery holder, protects the battery, in particular including all connections and lines, in the event of an accident, preferably an accident from the front, i.e. against the direction of travel of the vehicle, from direct application of force through - in the direction of travel of the vehicle Front wall, whereby this area is sometimes also referred to as engine compartment, arranged components, such as an engine, other parts of the vehicle drive, assemblies, in particular radiators or the like and / or high-voltage components for an electric vehicle.
  • the battery holder forms a protective battery space for the battery, whereby the battery is protected from being subjected to a force in the event of an accident, in that the battery holder, in particular the baffle plate, deforms a structure of the front wall and / or pushes it backwards in the direction of the passenger cell.
  • the battery holder has the particular advantage that the battery, including all connections and lines, remains accessible for assembly - as already mentioned - and / or repair.
  • the battery holder has a baffle plate and / or at least one strut and / or a battery base plate, or the battery holder is formed from a baffle plate, at least one strut and a battery base plate. Due to the modular structure of the battery holder, it is possible, in particular, to achieve a high level of stability, particularly effectively with a small pack size to enable good accessibility, in particular during or during the assembly of the battery.
  • the baffle plate is set up and arranged to be installed as the last component when the battery holder is installed. This makes it possible, in particular, to mount the battery in a simple manner, but at the same time to keep the pack size of the battery holder as small as possible.
  • the baffle plate covers at least three sides of a battery that can be arranged in the battery holder. This increases the protection provided by the battery holder, in particular by the baffle plate, for the battery, which can be arranged inside the battery holder.
  • the baffle plate covers the front side and / or the left side and / or the right side of a battery that can be arranged in the battery holder in the direction of vehicle travel. In this way, the necessary protection, which results from the components surrounding the battery holder, can be provided individually for the battery that can be arranged.
  • the battery holder is set up to accommodate a 12-volt battery.
  • 12-volt batteries are particularly suitable for use in passenger vehicles.
  • other batteries can also be safely accommodated in the vehicle by means of the battery holder, for example a 24-volt battery.
  • the battery holder is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength, in particular hot-formed or press-hardenable steel. In this way, a high level of stability of the battery holder is achieved in a particularly simple manner.
  • the baffle plate is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength, in particular hot-formed or press-hardenable steel. In this way, a high level of stability of the baffle plate is achieved in a particularly simple manner.
  • the at least one strut and / or the battery base plate is / are formed from an ultra-high-strength steel. In this way, high stability of the at least one strut and / or the battery base plate is achieved in a particularly simple manner.
  • FIG. 1 in a schematic representation of a first embodiment of the
  • FIG. 2 shows the embodiment according to FIG. 1 in two schematic representations, the vehicle being shown in a top view in both schematic representations of FIG The direction of travel of the vehicle is shifted in the direction of the front wall and the front wall is deformed accordingly.
  • FIG. 1 shows a schematic representation of an exemplary embodiment of the vehicle 1, having a battery holder 3 and an electrical battery cabling 5, the battery holder 3 in a front area 7 and, in geodetic terms, below a front hood (not shown in the figures) and on an end wall 9 of the vehicle 1 is arranged between a front space, in particular an engine and / or equipment compartment, and an interior space, in particular a passenger compartment.
  • the battery holder 3 is arranged in the free space between two strut mountings, which are also referred to as shock absorber domes.
  • longitudinal members 10 of the vehicle body between which, in the exemplary embodiment of the vehicle shown here, parts of a drive, here an electric drive train 12, which is also referred to for short as eATS, are arranged.
  • the battery holder 3 is designed so rigidly that a protective battery space 11 formed within the battery holder 3 remains intact when the force of a frontal collision of the vehicle 1 is applied, the front wall 9 of the vehicle 1 being set up and arranged for this purpose, if a predeterminable, in particular by corresponding structural, area is exceeded and / or constructive measures and / or use corresponding materials specifically definable or adjustable limit force to be deformable in the direction of the passenger compartment in such a way that the battery holder 3 can be displaced against a vehicle travel direction 13, in particular forward travel direction, in the direction of the end wall 9, preferably the end wall 9 is deformed and / or pressed against the vehicle travel direction 13 .
  • the battery holder 3 In principle, it is also possible for the battery holder 3 to penetrate the front wall 9 of the vehicle 1 due to the rearward displacement of the battery holder 3 as a result of the crash. It is important that the electrical battery cabling 5, which connects a battery 15 that can be arranged in the battery holder 3 to at least one electrical vehicle component (not shown in the figures), is designed in such a way that when the battery holder 3 is displaced against or through the front wall there is no electrical disconnection between the battery 15 which can be arranged in the battery holder 3 and the at least one electrical vehicle component.
  • the battery holder 3 has a baffle plate 17, at least one strut 19, preferably on both sides of the baffle plate 17 each have a strut 19 and a battery base plate 21, which here consist of individual parts and for producing the battery holder 3 can be put together.
  • the battery base plate 21 has here on its sides and on its side facing the end wall 9 in each case a flange turned upwards.
  • the struts 19 are fastened at one end to the lateral flanges, while the other end is fastened to the end wall 9.
  • the struts 19 run from the front bottom to the rear top in the direction of the end wall 9 and rise.
  • the battery base plate 21 is arranged in an imaginary plane spanning in the x-y direction of the vehicle coordinate system, i.e. a horizontal plane, while the baffle plate 17 is located in a plane spanning in the y-z direction of the vehicle coordinate system, i.e. a vertical plane. That is to say, the baffle plate 17 is perpendicular or at least essentially perpendicular to or on the battery base plate 21 and is also attached to it by means of a raised flange. All of the above-mentioned fastening points are preferably detachable, that is to say designed to be non-destructive, in particular as a respective screw connection.
  • the battery holder 3 in one piece, for example as a cast component.
  • the baffle plate 17 is set up and arranged to be installed as the last component when the battery holder 3 is installed. That is, the battery base plate 21 and the struts 19 are first mounted on the end wall 9 and the battery 15 is positioned on the battery base plate 21. After the cabling has been attached, the baffle plate 17 can then finally be attached.
  • the baffle plate 17 covers at least three sides of a battery 15 that can be arranged in the battery holder 3.
  • the baffle plate 17 covers the front side of the protective battery space 11 accommodating the battery 15 in the direction of vehicle travel 13 cover the right side of the battery 15 which can be arranged in the battery holder 3.
  • the side walls / cheeks of the baffle plate 17 partially cover the struts 19 towards the front and are preferably attached to the end wall 9 on this and / or to the struts 19, as indicated in the figures .
  • the baffle plate 17 described above thus has a U-shaped cross section or a U-shape - seen in horizontal section or in a plan view according to FIG. 2.
  • the battery holder 3 is set up to accommodate a 12-volt battery 15.
  • the battery holder 3 is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength steel, preferably a martensite-phase steel.
  • the baffle plate 17 is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength steel.
  • FIG. 2 is juxtaposed in two schematic representations of how the battery holder 3 is displaced in a front-end area 7 of the vehicle 1 in the event of a frontal accident of the vehicle 1.
  • the electric drive train 12 known for short as eATS, is arranged in front of the battery holder 7, which includes a console attached to the body for holding, for example, an electric motor and possibly other components of the drive train.
  • FIG. 2 shows in particular how the battery holder 3 is pushed against the vehicle travel direction 13 in the direction of the front wall 9 of the vehicle 1 while deforming the same in the direction of the passenger compartment.
  • the end wall 9 may also be pierced. It is important that the deformation of the end wall 9 creates space for the battery holder 3 which, while maintaining its structural integrity, continues to protect the battery 15 and thereby maintain the power supply.
  • the electrical battery cabling is designed, in particular provided with a length reserve, that the rearward displacement of the battery holder 3 due to the crash does not result in an interruption of the power supply.
  • an arrangement of the battery holder 3 - seen in a front view of the end wall 9 - in the vehicle transverse direction (y-direction in the vehicle coordinate system) in the middle or approximately in the middle the end wall 9 is provided in an upper region thereof, but still below a cross member structure, in particular a windshield cross member.
  • the end wall 9 does not have any solid structures, so it is relatively “soft” or can be easily deformed with relatively low forces.
  • higher intrusions in the direction of the passenger compartment are also permissible, since these have no negative effects on pedal and steering intrusion and thus occupant loads.
  • End wall structures as Wderlager for the side members are not arranged in this area.
  • the end wall 9 can therefore, especially in this area, consist of ductile, soft and thin metal sheets (for example St14 with a thickness of 0.7 mm) for reasons of cost and weight and is therefore correspondingly flexible, even with already relatively low forces.
  • the battery holder 3 does not have to be made excessively massive, rather a weight-saving design is possible without the protective function for the battery 15 being impaired as a result. It is important that the battery holder 15 is more stable than the end wall 9 in this area, so that the end wall 9 can be deformed in the desired manner without the protective space 11 of the battery holder 15 receiving the battery 15 being critically impaired or reduced in size.

Abstract

The invention relates to a vehicle (1) having: a battery holder (3) inside which a battery protection compartment (11) is provided, which accommodates a battery (15), the battery holder (3) being arranged in a front region (7) of the vehicle (1) underneath a front hood in a front compartment, and electrical battery wiring (5) for connecting the battery (15) to at least one electrical vehicle component which is designed such that, if the battery holder (3) is displaced in the event of a head-on crash, there is no electrical disconnection between the battery (15) and the at least one electrical vehicle component. The vehicle is characterised in that the battery holder (3) is arranged on an end wall (9) of the vehicle (1) between the front compartment and a passenger compartment and is so rigid that the battery protection compartment (11) remains intact during the application of force in the event of a head-on crash of the vehicle (1), and the end wall (9) of the vehicle (1) is designed and arranged to be deformable when a predeterminable limit force is exceeded such that the battery holder (3) can be forced counter to a vehicle direction of travel (13) and towards the end wall (9) while the latter deforms towards the passenger compartment.

Description

Fahrzeug mit einer Batteriehalterung Vehicle with a battery holder
Die Erfindung betrifft ein Fahrzeug mit einer Batteriehalterung und einer elektrischen Batterieverkabelung, gemäß Oberbegriff des Anspruchs 1. The invention relates to a vehicle with a battery holder and electrical battery cabling, according to the preamble of claim 1.
Für das von der Europäischen Union für neue Kraftfahrzeugmodelle vorgeschriebene automatische Notrufsystem eCall, mittels dem nach einem Unfall manuell durch den Fahrer eine Telefonverbindung zur nächstgelegenen Rettungsleitstelle hergestellt werden kann und das nach einem schweren Unfall, bei dem Airbags ausgelöst wurden, automatisch einen Notruf sendet, muss bei einem Frontalunfall des Fahrzeugs die elektrische Niedervolt-Stromversorgung, manchmal auch alsFor the automatic emergency call system eCall prescribed by the European Union for new motor vehicle models, by means of which the driver can manually establish a telephone connection to the nearest rescue control center after an accident and which automatically sends an emergency call after a serious accident in which airbags have been deployed in the event of a frontal collision with the vehicle, the electrical low-voltage power supply, sometimes also called
Kleinspannungsstromversorgung, insbesondere 12-Volt-Stromversorgung, bezeichnet, weiterhin funktionsfähig sein, um die Funktionsfähigkeit des Notrufsystems zu gewährleisten. Ferner dient die Niedervolt-Stromversorgung auch dazu, dass weitere wichtige Funktionen des Fahrzeugs, wie beispielsweise das Schließsystem für die Fahrzeugtüren, weiterhin funktionsfähig bleiben. Insofern ist es von großem Vorteil, wenn die Niedervolt-Stromversorgung über mindestens eine Stunde nach dem Unfall aufrechterhalten werden kann. Diese Niedervolt-Stromversorgung wird zudem für verschiedene Steuergeräte benötigt, welche verschiedene Funktionen des Fahrzeugs steuern. Low-voltage power supply, in particular 12-volt power supply, referred to, continue to be functional in order to ensure the functionality of the emergency call system. The low-voltage power supply also serves to ensure that other important functions of the vehicle, such as the locking system for the vehicle doors, remain functional. In this respect, it is of great advantage if the low-voltage power supply can be maintained for at least one hour after the accident. This low-voltage power supply is also required for various control units that control various functions of the vehicle.
Bei der Konstruktion eines Fahrzeugs kann es aufgrund von verschiedenen Vorgaben und/oder räumlichen Begebenheiten notwendig sein, dass eine Niedervolt-Batterie des Fahrzeugs in einem Bereich angeordnet werden muss, welcher bei einem Frontalunfall mit Kraft beaufschlagt wird, die aufgrund von Deformationen der Karosserie und/oder Rückverlagerung von Bauteilen, Aggregaten oder dergleichen auf die Batterie beziehungsweise eine diese aufnehmende Batteriehalterung wirkt. Aus der DE 102008059680 A1 ist eine Halterung einer Batterie in einem Kraftfahrzeug bekannt, welche ein Batterieaufnahmeelement in Form eines nach oben offenen, rechteckförmigen Behälters umfasst, so dass fünf der sechs Seitenflächen der Batterie durch das Aufnahmeelement abgedeckt sind. Zur sicheren Fixierung der Batterie im Aufnahmeelement ist dieses nach oben hin von einem Bügelelement umgeben. Das Batterieaufnahmeelement ist insgesamt als Schutzraum beziehungsweise -käfig für die Batterie ausgelegt, das im Kollisionsfall den Belastungen standhalten und seine Position innerhalb des Fahrzeug halten soll. Das entsprechend massiv und damit ein relativ hohes Gewicht aufweisende Batterieaufnahmeelement ist an einer zur Fahrbahn gerichteten Unterseite an der Karosserie des Fahrzeuges befestigt, wodurch die Zugänglichkeit bei der Montage deutlich erschwert wird und zudem für das Aufnahmeelement ein großes Packmaß erfordert. When designing a vehicle, due to various specifications and / or spatial conditions, it may be necessary that a low-voltage battery of the vehicle has to be arranged in an area that is subjected to force in the event of a frontal accident that is due to deformations of the body and / or relocation of components, assemblies or the like acts on the battery or a battery holder accommodating it. From DE 102008059680 A1 a holder for a battery in a motor vehicle is known which comprises a battery receiving element in the form of an upwardly open, rectangular container, so that five of the six side surfaces of the battery are covered by the receiving element. To secure the battery in place in the receiving element, the latter is surrounded at the top by a bracket element. The battery receiving element is designed overall as a protective space or cage for the battery, which in the event of a collision is intended to withstand the loads and maintain its position within the vehicle. The correspondingly massive and therefore relatively high weight battery receiving element is attached to an underside facing the roadway on the body of the vehicle, which makes accessibility during assembly significantly more difficult and also requires a large pack size for the receiving element.
Aus der US 2002/0191385 A1 geht ein gattungsgemäßes Fahrzeug hervor. A generic vehicle emerges from US 2002/0191385 A1.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Fahrzeug, insbesondere ein Fahrzeug mit einer Batteriehalterung und einer elektrischen Batterieverkabelung, zu schaffen, wobei die genannten Nachteile nicht auftreten. The invention is therefore based on the object of creating a vehicle, in particular a vehicle with a battery holder and electrical battery cabling, the disadvantages mentioned not occurring.
Die Aufgabe wird gelöst, indem die vorliegende technische Lehre bereitgestellt wird, insbesondere die Lehre des unabhängigen Anspruchs sowie der in den abhängigen Ansprüchen und der Beschreibung offenbarten bevorzugten Ausführungsbeispiele. The object is achieved in that the present technical teaching is provided, in particular the teaching of the independent claim and the preferred exemplary embodiments disclosed in the dependent claims and the description.
Die Aufgabe wird insbesondere gelöst, indem ein Fahrzeug geschaffen wird, aufweisend eine Batteriehalterung und eine elektrische Batterieverkabelung, wobei die Batteriehalterung in einem Vorbaubereich des Fahrzeugs und unterhalb einer Fronthaube des Fahrzeugs an einer einen im Vorbaubereich vorgesehenen Bauraum zu einer Fahrgastzelle hin begrenzenden Stirnwand des Fahrzeugs angeordnet ist. Die Batteriehalterung ist derart steif ausgebildet, dass ein innerhalb der Batteriehalterung gebildeter Batterieschutzraum bei der Krafteinwirkung in Folge eines Frontalunfalls des Fahrzeugs intakt bleibt. Die Stirnwand des Fahrzeugs ist dazu eingerichtet und angeordnet, bei Überschreitung einer vorgebbaren Grenzkraft derart verformbar zu sein, dass die Batteriehalterung entgegen einer Fahrzeugfahrtrichtung und in Richtung der Stirnwand verlagerbar ist, vorzugsweise wird die Stirnwand entgegen der Fahrzeugfahrtrichtung - mittels der Batteriehalterung - verdrängt und/oder verformt, insbesondere ist die Batteriehalterung durch die Stirnwand des Fahrzeugs hindurch in einen Batterieunfallschutzraum verlagerbar. Die elektrische Batterieverkabelung, welche eine in der Batteriehalterung anordenbare Batterie mit wenigstens einer elektrischen Fahrzeugkomponente, insbesondere einem Kabelbaum des Fahrzeugs, verbindet, ist derart ausgelegt, dass es bei einer crashbedingten Rückverlagerung der Batteriehalterung in Richtung der Fahrgastzelle zu keiner elektrischen Verbindungstrennung zwischen der in der Batteriehalterung anordenbaren Batterie und der wenigstens einen elektrischen Fahrzeugkomponente kommt. Hierdurch kann insbesondere der Vorteil erzielt werden, dass die Batterie, insbesondere die Niedervolt-Batterie, vorzugsweise inklusive aller Anschlüsse, für die Montage zugänglich ist, da nach Einbau der Niedervolt-Batterie die Batteriehalterung, insbesondere eine Prallplatte der Batteriehalterung, das heißt das zuletzt einbaubare und/oder einzubauende Teil der Batteriehalterung, zum Schluss montiert werden kann und die vorzugsweise mehrteilige Konstruktion der Batteriehalterung aus Prallplatte, Streben und Batteriegrundplatte, einen Batterieschutzraum bildet, welcher die Batterie schützt. The object is achieved in particular by creating a vehicle having a battery holder and electrical battery cabling, the battery holder being arranged in a front end area of the vehicle and below a front hood of the vehicle on a front wall of the vehicle that delimits an installation space provided in the front end area towards a passenger cell is. The battery holder is designed to be rigid in such a way that a protective battery space formed within the battery holder remains intact when the force is applied as a result of a frontal collision with the vehicle. The front wall of the vehicle is set up and arranged to be deformable when a predeterminable limit force is exceeded in such a way that the battery holder can be displaced against a vehicle travel direction and in the direction of the front wall; the front wall is preferably displaced and / or against the vehicle travel direction - by means of the battery holder deformed, in particular the battery holder can be displaced through the front wall of the vehicle into a battery accident protection area. The electrical battery wiring, which a battery that can be arranged in the battery holder connects to at least one electrical vehicle component, in particular a wiring harness of the vehicle, is designed in such a way that, in the event of a crash-related displacement of the battery holder back in the direction of the passenger cell, there is no electrical disconnection between the battery that can be arranged in the battery holder and the at least an electric vehicle component comes. This can in particular achieve the advantage that the battery, in particular the low-voltage battery, preferably including all connections, is accessible for assembly, since after the low-voltage battery has been installed, the battery holder, in particular a baffle plate of the battery holder, i.e. the one that can be installed last and / or part of the battery holder to be installed, can be assembled at the end and the preferably multi-part construction of the battery holder consisting of baffle plate, struts and battery base plate, forms a protective battery space that protects the battery.
Die Batteriehalterung, insbesondere eine Prallplatte der Batteriehalterung, schützt die Batterie, insbesondere inklusive aller Anschlüsse und Leitungen, bei einem Unfall, vorzugsweise bei einem Unfall von vorne, das heißt entgegen der Fahrzeugfahrtrichtung, vor einer direkten Beaufschlagung mit Kraft durch - in Fahrzeugfahrtrichtung - vor der Stirnwand, wobei dieser Bereich manchmal auch als Motorraum bezeichnet wird, angeordneten Bauteilen, wie beispielsweise einem Motor, sonstige Teile des Fahrzeugantriebs, Aggregate, insbesondere Kühler oder dergleichen und/oder Hochvoltkomponenten für ein Elektrofahrzeug. Dabei bildet die Batteriehalterung einen Batterieschutzraum für die Batterie, wodurch die Batterie vor der Beaufschlagung mit einer Kraft bei einem Unfall geschützt ist, indem die Batteriehalterung, insbesondere die Prallplatte, eine Struktur der Stirnwand verformt und/oder nach hinten in Richtung der Fahrgastzelle drückt. The battery holder, in particular a baffle plate of the battery holder, protects the battery, in particular including all connections and lines, in the event of an accident, preferably an accident from the front, i.e. against the direction of travel of the vehicle, from direct application of force through - in the direction of travel of the vehicle Front wall, whereby this area is sometimes also referred to as engine compartment, arranged components, such as an engine, other parts of the vehicle drive, assemblies, in particular radiators or the like and / or high-voltage components for an electric vehicle. The battery holder forms a protective battery space for the battery, whereby the battery is protected from being subjected to a force in the event of an accident, in that the battery holder, in particular the baffle plate, deforms a structure of the front wall and / or pushes it backwards in the direction of the passenger cell.
Die Batteriehalterung hat insbesondere den Vorteil, dass die Batterie inklusive aller Anschlüsse und Leitungen für eine Montage - wie schon erwähnt - und/oder Reparatur zugänglich bleibt. The battery holder has the particular advantage that the battery, including all connections and lines, remains accessible for assembly - as already mentioned - and / or repair.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Batteriehalterung eine Prallplatte und/oder mindestens eine Strebe und/oder eine Batteriegrundplatte aufweist, oder die Batteriehalterung aus einer Prallplatte, mindestens einer Strebe und einer Batteriegrundplatte gebildet ist. Durch den modularen Aufbau der Batteriehalterung ist es insbesondere möglich, besonders effektiv bei geringem Packmaß eine hohe Stabilität bei einer zudem guten Zugänglichkeit, insbesondere bei oder während der Montage der Batterie, zu ermöglichen. According to a development of the invention it is provided that the battery holder has a baffle plate and / or at least one strut and / or a battery base plate, or the battery holder is formed from a baffle plate, at least one strut and a battery base plate. Due to the modular structure of the battery holder, it is possible, in particular, to achieve a high level of stability, particularly effectively with a small pack size to enable good accessibility, in particular during or during the assembly of the battery.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Prallplatte dazu eingerichtet und angeordnet ist, bei einer Montage der Batteriehalterung als letztes Bauteil montiert zu werden. Hierdurch ist es insbesondere möglich, auf einfache Art und Weise die Batterie zu montieren, jedoch gleichzeitig das Packmaß der Batteriehalterung so gering wie möglich zu halten. According to a further development of the invention, it is provided that the baffle plate is set up and arranged to be installed as the last component when the battery holder is installed. This makes it possible, in particular, to mount the battery in a simple manner, but at the same time to keep the pack size of the battery holder as small as possible.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Prallplatte mindestens drei Seiten einer in der Batteriehalterung anordenbare Batterie überdeckt. Dies erhöht den Schutz durch die Batteriehalterung, insbesondere durch die Prallplatte, für die Batterie, welche innerhalb der Batteriehalterung anordenbar ist. According to a further development of the invention it is provided that the baffle plate covers at least three sides of a battery that can be arranged in the battery holder. This increases the protection provided by the battery holder, in particular by the baffle plate, for the battery, which can be arranged inside the battery holder.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Prallplatte in Fahrzeugfahrtrichtung die Vorderseite und/oder die linke Seite und/oder die rechte Seite einer in der Batteriehalterung anordenbaren Batterie überdeckt. Für die anordenbare Batterie kann hierdurch individuell der notwendige Schutz, welcher sich durch die die Batteriehalterung umgebenden Bauteile ergibt, bereitgestellt werden. According to a further development of the invention, it is provided that the baffle plate covers the front side and / or the left side and / or the right side of a battery that can be arranged in the battery holder in the direction of vehicle travel. In this way, the necessary protection, which results from the components surrounding the battery holder, can be provided individually for the battery that can be arranged.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Batteriehalterung zur Aufnahme einer 12-Volt Batterie eingerichtet ist. Insbesondere 12-Volt Batterien sind für den Einsatz in Personenkraftwagen besonders geeignet. Selbstverständlich sind auch andere Batterien mittels der Batteriehalterung im Fahrzeug sicher unterbringbar, beispielsweise eine 24-Volt Batterie. According to a further development of the invention it is provided that the battery holder is set up to accommodate a 12-volt battery. In particular, 12-volt batteries are particularly suitable for use in passenger vehicles. Of course, other batteries can also be safely accommodated in the vehicle by means of the battery holder, for example a 24-volt battery.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Batteriehalterung aus einem Kunststoff, insbesondere einem faserverstärkten Kunststoff, oder aus einem ultrahochfesten, insbesondere warmumgeformten beziehungsweise presshärtbaren Stahl gebildet ist. Hierdurch wird auf insbesondere einfache Art und Weise eine hohe Stabilität der Batteriehalterung erzielt. According to a further development of the invention, it is provided that the battery holder is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength, in particular hot-formed or press-hardenable steel. In this way, a high level of stability of the battery holder is achieved in a particularly simple manner.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die Prallplatte aus einem Kunststoff, insbesondere einem faserverstärkten Kunststoff, oder aus einem ultrahochfesten, insbesondere warmumgeformten beziehungsweise presshärtbaren Stahl gebildet ist. Hierdurch wird auf insbesondere einfache Art und Weise eine hohe Stabilität der Prallplatte erzielt. Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass die mindestens eine Strebe und/oder die Batteriegrundplatte aus einem ultrahochfesten Stahl gebildet ist/sind. Hierdurch wird auf insbesondere einfache Art und Weise eine hohe Stabilität der mindestens einen Strebe und/oder der Batteriegrundplatte erzielt. According to a further development of the invention, it is provided that the baffle plate is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength, in particular hot-formed or press-hardenable steel. In this way, a high level of stability of the baffle plate is achieved in a particularly simple manner. According to a further development of the invention it is provided that the at least one strut and / or the battery base plate is / are formed from an ultra-high-strength steel. In this way, high stability of the at least one strut and / or the battery base plate is achieved in a particularly simple manner.
Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Dabei zeigen:The invention is explained in more detail below with reference to the drawing. Show:
Fig. 1 in einer schematischen Darstellung ein erstes Ausführungsbeispiel desFig. 1 in a schematic representation of a first embodiment of the
Fahrzeugs, wobei insbesondere die Batteriehalterung und die verformbare Stirnwand gezeigt sind, Vehicle, with the battery holder and the deformable bulkhead being shown in particular,
Fig. 2 in zwei schematischen Darstellungen das Ausführungsbeispiel gemäß Figur 1, wobei in beiden schematischen Darstellungen von Figur 2 das Fahrzeug in einer Draufsicht gezeigt ist, wobei insbesondere in der rechten Darstellung der Figur 2 zu erkennen ist, wie die Batteriehalterung bei einem Frontalunfall entgegen der Fahrzeugfahrtrichtung in Richtung der Stirnwand verlagert und die Stirnwand entsprechend deformiert wird. 2 shows the embodiment according to FIG. 1 in two schematic representations, the vehicle being shown in a top view in both schematic representations of FIG The direction of travel of the vehicle is shifted in the direction of the front wall and the front wall is deformed accordingly.
Der Figur 1 ist in einer schematischen Darstellung ein Ausführungsbeispiel des Fahrzeugs 1 zu entnehmen, aufweisend eine Batteriehalterung 3 und eine elektrische Batterieverkabelung 5, wobei die Batteriehalterung 3 in einem Vorbaubereich 7 und in geodätischer Hinsicht unterhalb einer Fronthaube (in den Figuren nicht gezeigt) sowie an einer zwischen einem Frontraum, insbesondere Motor- und/oder Aggregateraum, und einem Innenraum, insbesondere Fahrgastraum, angeordneten Stirnwand 9 des Fahrzeugs 1 angeordnet ist. Zu erkennen ist in Figur 2, dass die Batteriehalterung 3 in dem Freiraum zwischen zwei Federbeinaufnahmen, welche auch als Dämpferbeindome bezeichnet werden, angeordnet ist. Zu erkennen sind ferner Längsträger 10 der Fahrzeugkarosserie, zwischen denen bei dem hier dargestellten Ausführungsbeispiel des Fahrzeugs Teile eines Antriebs, hier ein elektrischer Antriebsstrang 12, welcher kurz auch eATS bezeichnet wird, angeordnet ist. FIG. 1 shows a schematic representation of an exemplary embodiment of the vehicle 1, having a battery holder 3 and an electrical battery cabling 5, the battery holder 3 in a front area 7 and, in geodetic terms, below a front hood (not shown in the figures) and on an end wall 9 of the vehicle 1 is arranged between a front space, in particular an engine and / or equipment compartment, and an interior space, in particular a passenger compartment. It can be seen in FIG. 2 that the battery holder 3 is arranged in the free space between two strut mountings, which are also referred to as shock absorber domes. It is also possible to see longitudinal members 10 of the vehicle body, between which, in the exemplary embodiment of the vehicle shown here, parts of a drive, here an electric drive train 12, which is also referred to for short as eATS, are arranged.
Die Batteriehalterung 3 ist derart steif ausgebildet, dass ein innerhalb der Batteriehalterung 3 gebildeter Batterieschutzraum 11 bei der Krafteinwirkung eines Frontalunfalls des Fahrzeugs 1 intakt bleibt, wobei die Stirnwand 9 des Fahrzeugs 1 dazu eingerichtet und angeordnet ist, bei Überschreitung einer vorgebbaren, insbesondere durch entsprechende bauliche und/oder konstruktive Maßnahmen und/oder dem Einsatz entsprechender Materialien gezielt definierbaren beziehungsweise einstellbaren Grenzkraft derart in Richtung der Fahrgastzelle verformbar zu sein, dass die Batteriehalterung 3 entgegen einer Fahrzeugfahrtrichtung 13, insbesondere Vorwärtsfahrtrichtung, in Richtung der Stirnwand 9 verlagerbar ist, vorzugsweise die Stirnwand 9 entgegen der Fahrzeugfahrtrichtung 13 verformt und/oder gedrückt wird. Grundsätzlich ist es auch möglich, dass durch die crashbedingte Rückverlagerung der Batteriehalterung 3 diese die Stirnwand 9 des Fahrzeugs 1 durchdringt. Wichtig ist, dass die elektrische Batterieverkabelung 5, welche eine in der Batteriehalterung 3 anordenbare Batterie 15 mit wenigstens einer elektrischen Fahrzeugkomponente (in den Figuren nicht gezeigt) verbindet, derart ausgelegt ist, dass es bei einer Verlagerung der Batteriehalterung 3 gegen beziehungsweise durch die Stirnwand hindurch zu keiner elektrischen Verbindungstrennung zwischen der in der Batteriehalterung 3 anordenbaren Batterie 15 und der wenigstens einen elektrischen Fahrzeugkomponente kommt. The battery holder 3 is designed so rigidly that a protective battery space 11 formed within the battery holder 3 remains intact when the force of a frontal collision of the vehicle 1 is applied, the front wall 9 of the vehicle 1 being set up and arranged for this purpose, if a predeterminable, in particular by corresponding structural, area is exceeded and / or constructive measures and / or use corresponding materials specifically definable or adjustable limit force to be deformable in the direction of the passenger compartment in such a way that the battery holder 3 can be displaced against a vehicle travel direction 13, in particular forward travel direction, in the direction of the end wall 9, preferably the end wall 9 is deformed and / or pressed against the vehicle travel direction 13 . In principle, it is also possible for the battery holder 3 to penetrate the front wall 9 of the vehicle 1 due to the rearward displacement of the battery holder 3 as a result of the crash. It is important that the electrical battery cabling 5, which connects a battery 15 that can be arranged in the battery holder 3 to at least one electrical vehicle component (not shown in the figures), is designed in such a way that when the battery holder 3 is displaced against or through the front wall there is no electrical disconnection between the battery 15 which can be arranged in the battery holder 3 and the at least one electrical vehicle component.
Ferner ist insbesondere der Figur 1 zu entnehmen, dass die Batteriehalterung 3 eine Prallplatte 17, zumindest eine Strebe 19, vorzugsweise auf beiden Seiten der Prallplatte 17 jeweils eine Strebe 19 und eine Batteriegrundplatte 21 aufweist, die hier aus jeweiligen Einzelteilen bestehen und zur Herstellung der Batteriehalterung 3 zusammengesetzt werden. Die Batteriegrundplatte 21 weist hier an ihren Seiten und an ihrer der Stirnwand 9 zugewandten Seite jeweils einen nach oben abgestellten Flansch auf. An den seitlichen Flanschen sind die Streben 19 einenends befestigt, während deren anderes Ende an der Stirnwand 9 befestigt wird. Die Streben 19 verlaufen von vorne unten nach hinten oben in Richtung der Stirnwand 9 ansteigend. Furthermore, it can be seen in particular from Figure 1 that the battery holder 3 has a baffle plate 17, at least one strut 19, preferably on both sides of the baffle plate 17 each have a strut 19 and a battery base plate 21, which here consist of individual parts and for producing the battery holder 3 can be put together. The battery base plate 21 has here on its sides and on its side facing the end wall 9 in each case a flange turned upwards. The struts 19 are fastened at one end to the lateral flanges, while the other end is fastened to the end wall 9. The struts 19 run from the front bottom to the rear top in the direction of the end wall 9 and rise.
Die Batteriegrundplatte 21 ist in einer gedachten, sich in x-y-Richtung des Fahrzeugkoordinatensystems aufspannenden Ebene, das heißt Horizontalebene angeordnet, während die Prallplatte 17 in einer sich in y-z-Richtung des Fahrzeugkoordinatensystems aufspannenden Ebene, das heißt Vertikalebene befindet. Das heißt, die Prallplatte 17 steht senkrecht oder zumindest aber im Wesentlichen senkrecht zur beziehungsweise auf der Batteriegrundplatte 21 und ist auch an dieser mittels eines abgestellten Flansches daran befestigt. Alle vorstehend genannten Befestigungsstellen sind vorzugsweise lösbar, das heißt zerstörungsfrei ausgebildet, insbesondere als jeweilige Schraubverbindung. The battery base plate 21 is arranged in an imaginary plane spanning in the x-y direction of the vehicle coordinate system, i.e. a horizontal plane, while the baffle plate 17 is located in a plane spanning in the y-z direction of the vehicle coordinate system, i.e. a vertical plane. That is to say, the baffle plate 17 is perpendicular or at least essentially perpendicular to or on the battery base plate 21 and is also attached to it by means of a raised flange. All of the above-mentioned fastening points are preferably detachable, that is to say designed to be non-destructive, in particular as a respective screw connection.
Alternativ ist es möglich, die Batteriehalterung 3 einteilig auszubilden, beispielsweise als Gußbauteil. Darüber hinaus ist bevorzugt vorgesehen, dass die Prallplatte 17 dazu eingerichtet und angeordnet ist, bei einer Montage der Batteriehalterung 3 als letztes Bauteil montiert zu werden. Das heißt, es werden zunächst die Batteriegrundplatte 21 und die Streben 19 an der Stirnwand 9 montiert sowie die Batterie 15 auf die Batteriegrundplatte 21 positioniert. Nach Anbringen der Verkabelung kann dann die Prallplatte 17 abschließend angebracht werden. Alternatively, it is possible to design the battery holder 3 in one piece, for example as a cast component. In addition, it is preferably provided that the baffle plate 17 is set up and arranged to be installed as the last component when the battery holder 3 is installed. That is, the battery base plate 21 and the struts 19 are first mounted on the end wall 9 and the battery 15 is positioned on the battery base plate 21. After the cabling has been attached, the baffle plate 17 can then finally be attached.
Des Weiteren ist bevorzugt vorgesehen, dass die Prallplatte 17 mindestens drei Seiten einer in der Batteriehalterung 3 anordenbare Batterie15 überdeckt. Furthermore, it is preferably provided that the baffle plate 17 covers at least three sides of a battery 15 that can be arranged in the battery holder 3.
Ferner ist insbesondere der Figur 1 zu entnehmen, dass die Prallplatte 17 in Fahrzeugfahrtrichtung 13 die Vorderseite des die Batterie 15 aufnehmenden Batterieschutzraums 11 überdeckt, wobei sich an die Prallplatte seitliche Wände in Form von Wangen anschließen beziehungsweise von dieser abstehen, welche ihrerseits die linke Seite beziehungsweise die rechte Seite der in der Batteriehalterung 3 anordenbaren Batterie 15 überdecken. Die seitlichen Wände/Wangen der Prallplatte 17 überdecken bei dem in den Figuren 1 und 2 dargestellten Ausführungsbeispiel teilweise die Streben 19 nach vorne hin und sind vorzugsweise im Bereich der Stirnwand 9 an dieser und/oder an den Streben 19 befestigt, wie in den Figuren angedeutet. Die vorstehend beschriebene Prallplatte 17 weist also einen - im Horizontalschnitt beziehungsweise im Draufsicht gemäß Figur 2 gesehen - einen U-förmigen Querschnitt beziehungsweise eine U-Form auf. It can also be seen in particular from FIG. 1 that the baffle plate 17 covers the front side of the protective battery space 11 accommodating the battery 15 in the direction of vehicle travel 13 cover the right side of the battery 15 which can be arranged in the battery holder 3. In the exemplary embodiment shown in FIGS. 1 and 2, the side walls / cheeks of the baffle plate 17 partially cover the struts 19 towards the front and are preferably attached to the end wall 9 on this and / or to the struts 19, as indicated in the figures . The baffle plate 17 described above thus has a U-shaped cross section or a U-shape - seen in horizontal section or in a plan view according to FIG. 2.
Im Übrigen ist bevorzugt vorgesehen, dass die Batteriehalterung 3 zur Aufnahme einer 12-Volt Batterie 15 eingerichtet ist. In addition, it is preferably provided that the battery holder 3 is set up to accommodate a 12-volt battery 15.
Darüber hinaus ist bevorzugt vorgesehen, dass die Batteriehalterung 3 aus einem Kunststoff, insbesondere einem faserverstärkten Kunststoff, oder aus einem ultrahochfesten Stahl, vorzugsweise einem Martensitphasenstahl, gebildet ist. In addition, it is preferably provided that the battery holder 3 is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength steel, preferably a martensite-phase steel.
Ferner ist bevorzugt vorgesehen, dass die Prallplatte 17 aus einem Kunststoff, insbesondere einem faserverstärkten Kunststoff, oder aus einem ultrahochfesten Stahl gebildet ist. Furthermore, it is preferably provided that the baffle plate 17 is formed from a plastic, in particular a fiber-reinforced plastic, or from an ultra-high-strength steel.
Im Übrigen ist bevorzugt vorgesehen, dass die mindestens eine Strebe 19 und/oder die Batteriegrundplatte 21 aus einem ultrahochfesten Stahl gebildet ist. Insbesondere der Figur 2 ist in jeweils zwei schematischen Darstellungen gegenübergestellt, wie die Batteriehalterung 3 in einem Vorbaubereich 7 des Fahrzeugs 1 bei einem Frontalunfall des Fahrzeugs 1 verlagert wird. Im Vorbaubereich 7 ist in Vorwärtsfahrtrichtung gesehen vor der Batteriehalterung 3 und in zumindest teilweiser Überdeckung mit dieser der kurz eATS genannte elektrische Antriebsstrang 12 angeordnet, der eine an der Karosserie befestigte Konsole zur Halterung beispielsweise eines Elektromotors und gegebenenfalls weiterer Komponenten des Antriebsstrangs umfasst. Bei einem entsprechend heftigen Anprall eines Kollisionspartners an der Frontseite des Fahrzeugs wird die Karosserie im Vorbaubereich so weit verformt, dass es zu einer Rückverlagerung des eATS in Richtung auf die Stirnwand und somit auf die Batteriehalterung 3 kommt. Der rechten Darstellung der Figur 2 ist insbesondere zu entnehmen wie die Batteriehalterung 3 entgegen der Fahrzeugfahrtrichtung 13 in Richtung der Stirnwand 9 des Fahrzeugs 1 unter Verformung derselben in Richtung des Fahrgastraumes gedrängt wird. Dabei kann es gegebenenfalls auch zu einem Durchstoßen der Stirnwand 9 kommen. Wichtig ist, dass durch die Verformung der Stirnwand 9 Platz für die Batteriehalterung 3 geschaffen wird, die unter Beibehaltung ihrer Strukturintegrität die Batterie 15 weiterhin schützt und die Stromversorgung dadurch aufrechterhält. We vorstehend bereits beschrieben, ist die elektrische Batterieverkabelung so ausgebildet, insbesondere mit so einer Längenreserve versehen, dass durch die crashbedingte Rückverlagerung der Batteriehalterung 3 es nicht zu einer Unterbrechung der Stromversorgung kommt. In addition, it is preferably provided that the at least one strut 19 and / or the battery base plate 21 is formed from an ultra-high-strength steel. In particular, FIG. 2 is juxtaposed in two schematic representations of how the battery holder 3 is displaced in a front-end area 7 of the vehicle 1 in the event of a frontal accident of the vehicle 1. In the front end area 7, in front of the battery holder 3 and in at least partial overlap with this, the electric drive train 12, known for short as eATS, is arranged in front of the battery holder 7, which includes a console attached to the body for holding, for example, an electric motor and possibly other components of the drive train. In the event of a correspondingly violent impact with a collision partner on the front of the vehicle, the body in the front end area is deformed to such an extent that the eATS is shifted back towards the front wall and thus towards the battery holder 3. The right-hand illustration of FIG. 2 shows in particular how the battery holder 3 is pushed against the vehicle travel direction 13 in the direction of the front wall 9 of the vehicle 1 while deforming the same in the direction of the passenger compartment. In this case, the end wall 9 may also be pierced. It is important that the deformation of the end wall 9 creates space for the battery holder 3 which, while maintaining its structural integrity, continues to protect the battery 15 and thereby maintain the power supply. As already described above, the electrical battery cabling is designed, in particular provided with a length reserve, that the rearward displacement of the battery holder 3 due to the crash does not result in an interruption of the power supply.
Bei dem in den Figuren 1 und 2 dargestellten Ausführungsbeispiel der erfindungsgemäßen Schutzvorrichtung für die Batterie 15 ist eine Anordnung der Batteriehalterung 3 - in Frontalansicht auf die Stirnwand 9 gesehen- in Fahrzeugquerrichtung (y-Richtung im Fahrzeugkoordinatensystem) in der Mitte beziehungsweise in etwa in der Mitte der Stirnwand 9 in einem oberen Bereich derselben vorgesehen, jedoch noch unterhalb einer Querträgerstruktur, insbesondere eines Windschutzscheibenquerträgers. In diesem Bereich weist die Stirnwand 9 keine feste Strukturen auf, ist also relativ „weich“ beziehungsweise ist mit verhältnismäßig geringen Kräften leicht deformierbar. In diesem Bereich der Stirnwand 9 sind auch höhere Intrusionen in Richtung des Fahrgastraums zulässig, da diese keine negativen Auswirkungen auf Pedal- und Lenkungsintrusion und damit Insassenbelastungen haben. Auch Stirnwandstrukturen als Wderlager für die Längsträger sind nicht in diesem Bereich angeordnet. Die Stirnwand 9 kann daher, insbesondere in diesem Bereich, allein schon aus Kosten und Gewichtgründen aus duktilen, weichen und dünnen Blechen bestehen (zum Beispiel St14 mit 0,7 mm Dicke) und ist damit entsprechen nachgiebig, auch bei bereits relativ geringen Kräften. Somit muss die Batteriehalterung 3 nicht übermäßig massiv ausgestaltet werden, vielmehr ist eine gewichtssparende Bauweise möglich, ohne dass die Schutzfunktion für die Batterie 15 dadurch beeinträchtigt wird. Wichtig ist, dass die Batteriehalterung 15 stabiler ist als die Stirnwand 9 in diesem Bereich, sodass sich die Stirnwand 9 in gewünschter Weise verformen lässt, ohne dass der die Batterie 15 aufnehmende Schutzraum 11 der Batteriehalterung 15 in kritischen Maße beeinträchtigt beziehungsweise verkleinert wird. In the embodiment of the protective device according to the invention for the battery 15 shown in Figures 1 and 2, an arrangement of the battery holder 3 - seen in a front view of the end wall 9 - in the vehicle transverse direction (y-direction in the vehicle coordinate system) in the middle or approximately in the middle the end wall 9 is provided in an upper region thereof, but still below a cross member structure, in particular a windshield cross member. In this area, the end wall 9 does not have any solid structures, so it is relatively “soft” or can be easily deformed with relatively low forces. In this area of the end wall 9, higher intrusions in the direction of the passenger compartment are also permissible, since these have no negative effects on pedal and steering intrusion and thus occupant loads. End wall structures as Wderlager for the side members are not arranged in this area. The end wall 9 can therefore, especially in this area, consist of ductile, soft and thin metal sheets (for example St14 with a thickness of 0.7 mm) for reasons of cost and weight and is therefore correspondingly flexible, even with already relatively low forces. Thus, the battery holder 3 does not have to be made excessively massive, rather a weight-saving design is possible without the protective function for the battery 15 being impaired as a result. It is important that the battery holder 15 is more stable than the end wall 9 in this area, so that the end wall 9 can be deformed in the desired manner without the protective space 11 of the battery holder 15 receiving the battery 15 being critically impaired or reduced in size.

Claims

Patentansprüche Claims
1. Fahrzeug (1), aufweisend eine Batteriehalterung (3), innerhalb derer ein eine Batterie (15) aufnehmender Batterieschutzraum (11) vorgesehen ist, wobei die Batteriehalterung (3) in einem Vorbaubereich (7) des Fahrzeugs (1) unterhalb einer Fronthaube in einem Frontraum angeordnet ist, und eine elektrische Batterieverkabelung (5) zur Verbindung der Batterie (15) mit wenigstens einer elektrischen Fahrzeugkomponente, welche derart ausgelegt ist, dass es bei einer Frontalunfall bedingten Verlagerung der Batteriehalterung (3) zu keiner elektrischen Verbindungstrennung zwischen der Batterie (15) und der wenigstens einen elektrischen Fahrzeugkomponente kommt, dadurch gekennzeichnet, dass die Batteriehalterung (3) an einer zwischen dem Frontraum und einem Fahrgastraum angeordneten Stirnwand (9) des Fahrzeugs (1) angeordnet und derart steif ausgebildet ist, dass der Batterieschutzraum (11) bei der Krafteinwirkung eines Frontalunfalls des Fahrzeugs (1) intakt bleibt und die Stirnwand (9) des Fahrzeugs (1) dazu eingerichtet und angeordnet ist, bei Überschreitung einer vorgebbaren Grenzkraft derart verformbar zu sein, dass die Batteriehalterung (3) entgegen einer Fahrzeugfahrtrichtung (13) und in Richtung der Stirnwand (9) unter Verformung derselben in Richtung des Fahrgastraums drängbar ist. 1. Vehicle (1), having a battery holder (3), within which a battery (15) receiving protective battery compartment (11) is provided, the battery holder (3) in a front section (7) of the vehicle (1) below a front hood is arranged in a front space, and an electrical battery cabling (5) for connecting the battery (15) to at least one electrical vehicle component, which is designed in such a way that there is no electrical disconnection between the battery in a frontal accident-related displacement of the battery holder (3) (15) and the at least one electrical vehicle component, characterized in that the battery holder (3) is arranged on an end wall (9) of the vehicle (1) arranged between the front space and a passenger compartment and is designed to be rigid in such a way that the protective battery space (11 ) when the force of a frontal collision occurs, the vehicle (1) remains intact and the front wall (9) of the company The vehicle (1) is set up and arranged to be deformable when a predeterminable limit force is exceeded in such a way that the battery holder (3) can be pushed against a vehicle direction of travel (13) and in the direction of the front wall (9) while deforming it in the direction of the passenger compartment.
2. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Batteriehalterung (3) - in Frontalansicht auf die Stirnwand (9) gesehen - in Fahrzeugquerrichtung (y-Richtung) in der Mitte oder in etwa in der Mitte der Stirnwand (9) angeordnet ist. 2. Vehicle according to claim 1, characterized in that the battery holder (3) - seen in a front view of the end wall (9) - is arranged in the vehicle transverse direction (y-direction) in the middle or approximately in the middle of the end wall (9) .
3. Fahrzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Batteriehalterung (3) unterhalb eines Windschutzscheibenquerträgers angeordnet ist. 3. Vehicle according to claim 1 or 2, characterized in that the battery holder (3) is arranged below a windshield cross member.
4. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Batteriehalterung (3) in einem Bereich der Stirnwand (9) angeordnet ist, welcher frei von als Widerlager für Längsträger (10) der Karosserie dienenden Stirnwandstrukturen ist. 4. Vehicle according to one of the preceding claims, characterized in that the battery holder (3) is arranged in a region of the end wall (9) which is free of end wall structures serving as an abutment for the side members (10) of the body.
5. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Batteriehalterung (3) eine Prallplatte (17) und/oder mindestens eine Strebe (19) und/oder eine Batteriegrundplatte (21) aufweist, oder die Batteriehalterung aus einer Prallplatte, mindestens einer Strebe und einer Batteriegrundplatte (21) gebildet ist. 5. Vehicle according to one of the preceding claims, characterized in that the battery holder (3) has a baffle plate (17) and / or at least one strut (19) and / or a battery base plate (21), or the battery holder from a baffle plate, at least a strut and a battery base plate (21) is formed.
6. Fahrzeug nach Anspruch 5, dadurch gekennzeichnet, dass die Prallplatte (17) dazu eingerichtet und angeordnet ist, bei einer Montage der Batteriehalterung (3) als letztes Bauteil montiert zu werden. 6. Vehicle according to claim 5, characterized in that the baffle plate (17) is set up and arranged to be installed as the last component when the battery holder (3) is installed.
7. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Prallplatte (17) mindestens drei Seiten einer in der Batteriehalterung (3) anordenbaren Batterie (15) zumindest teilweise überdeckt. 7. Vehicle according to one of the preceding claims, characterized in that the baffle plate (17) at least partially covers at least three sides of a battery (15) which can be arranged in the battery holder (3).
8. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Prallplatte (17) in Fahrzeugfahrtrichtung(13) die Vorderseite und/oder die linke Seite und/oder die rechte Seite einer in der Batteriehalterung (3) anordenbaren Batterie (15) überdeckt. 8. Vehicle according to one of the preceding claims, characterized in that the baffle plate (17) in the direction of vehicle travel (13) covers the front and / or the left side and / or the right side of a battery (15) which can be arranged in the battery holder (3) .
9. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Batteriehalterung (3) zur Aufnahme einer 12-Volt Batterie (15) eingerichtet ist. 9. Vehicle according to one of the preceding claims, characterized in that the battery holder (3) is designed to accommodate a 12-volt battery (15).
PCT/EP2021/061934 2020-05-11 2021-05-06 Vehicle having a battery holder WO2021228666A1 (en)

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FR2744965A1 (en) * 1996-02-16 1997-08-22 Peugeot Battery and control pedal assembly for mounting in motor vehicle
DE19726192A1 (en) * 1997-06-20 1998-12-24 Bayerische Motoren Werke Ag Motor vehicle with battery arranged in front or rear section of vehicle
US20020191385A1 (en) 2001-06-13 2002-12-19 Honda Giken Kogyo Kabushiki Kaisha Automotive equipment mounting structure
DE102008059680A1 (en) 2008-11-29 2010-06-02 GM Global Technology Operations, Inc., Detroit Device for mounting battery in motor vehicle, has retaining element for retaining battery, and clip element, which partly encloses retaining element or battery to be mounted
FR3023517A1 (en) * 2014-07-11 2016-01-15 Peugeot Citroen Automobiles Sa BATTERY SUPPORT WITH PROGRAMMING MOVEMENT
EP3424783A1 (en) * 2017-07-05 2019-01-09 Volvo Car Corporation Battery protective device for a vehicle

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DE19840129A1 (en) 1998-09-03 2000-03-09 Volkswagen Ag Dimensionally stable casing for a motor vehicle battery
DE102010018729B4 (en) 2010-04-29 2023-12-07 Bayerische Motoren Werke Aktiengesellschaft Passenger car with a body and an additional structure
JP5991021B2 (en) 2012-05-18 2016-09-14 マツダ株式会社 Harness layout

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647562A (en) * 1948-03-11 1950-12-13 Vauxhall Motors Ltd Improved box retainer for use on motor vehicles
FR2744965A1 (en) * 1996-02-16 1997-08-22 Peugeot Battery and control pedal assembly for mounting in motor vehicle
DE19726192A1 (en) * 1997-06-20 1998-12-24 Bayerische Motoren Werke Ag Motor vehicle with battery arranged in front or rear section of vehicle
US20020191385A1 (en) 2001-06-13 2002-12-19 Honda Giken Kogyo Kabushiki Kaisha Automotive equipment mounting structure
DE102008059680A1 (en) 2008-11-29 2010-06-02 GM Global Technology Operations, Inc., Detroit Device for mounting battery in motor vehicle, has retaining element for retaining battery, and clip element, which partly encloses retaining element or battery to be mounted
FR3023517A1 (en) * 2014-07-11 2016-01-15 Peugeot Citroen Automobiles Sa BATTERY SUPPORT WITH PROGRAMMING MOVEMENT
EP3424783A1 (en) * 2017-07-05 2019-01-09 Volvo Car Corporation Battery protective device for a vehicle

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