WO2023079008A1 - Deflector system for an electric battery and brake booster cylinder for a motor vehicle - Google Patents

Deflector system for an electric battery and brake booster cylinder for a motor vehicle Download PDF

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Publication number
WO2023079008A1
WO2023079008A1 PCT/EP2022/080691 EP2022080691W WO2023079008A1 WO 2023079008 A1 WO2023079008 A1 WO 2023079008A1 EP 2022080691 W EP2022080691 W EP 2022080691W WO 2023079008 A1 WO2023079008 A1 WO 2023079008A1
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WO
WIPO (PCT)
Prior art keywords
protection device
electric battery
deflector system
cylinder
brake booster
Prior art date
Application number
PCT/EP2022/080691
Other languages
French (fr)
Inventor
Fernando DE-ARRUDA
Henrique MACEDO
Marco MOTTIN
Rodriguo SCHAMNE
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Publication of WO2023079008A1 publication Critical patent/WO2023079008A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal
    • B60T7/065—Disposition of pedal with means to prevent injuries in case of collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0869—Insulating elements, e.g. for sound insulation for protecting heat sensitive parts, e.g. electronic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices

Definitions

  • the present invention relates, in general, to motor vehicles comprising a braking system equipped with a brake booster, arranged close to an electric battery and, more particularly, the protection of an electric battery against thermal risks. during a collision between the electric battery and the brake booster cylinder of a motor vehicle.
  • the invention relates to a deflector system for protection against thermal risks during a collision between an electric battery and a brake booster cylinder of a motor vehicle.
  • the brake booster is an element used to amplify the braking force generated by the braking system. In other words, when the brake pedal is operated by the driver, this force is increased tenfold by the brake booster.
  • the brake booster amplifies the effort and transmits it to a cylinder with which it is equipped, intended to transform the driver's effort into hydraulic pressure.
  • the cylinder transmits and distributes the brake fluid pressure to the various braking elements.
  • the brake booster can be mounted close to the electric battery. In the event of a collision, the structure and position of the brake servo cylinder can then represent a danger for the electric battery.
  • the shock projects the cylinder along a trajectory directed towards the electric battery so that it may strike the electric battery and tear its outer casing.
  • the battery's internal metal plates are therefore likely to come into contact with the brake servo cylinder and cause an electric shock, which could cause a fire to start.
  • the object of the invention is therefore to remedy these drawbacks and to propose a simple and effective protection system making it possible to limit the thermal risks caused by a collision between the electric battery and the brake booster cylinder of a motor vehicle.
  • a deflector system for an electric battery and a brake booster cylinder of a motor vehicle comprising a first protection device comprising means for connection to the brake booster cylinder, a second protection device independent of the first device protection comprising means for connection to the electric battery, and means for deflecting the first protection device from its initial trajectory directed towards the second protection device during a collision between the cylinder of the brake booster and the electric battery.
  • the deflection means may comprise first and second sliding surfaces carried respectively by the first and second protection devices, the inclination of the first and second sliding surfaces being adapted to deflect the initial trajectory of the first protection device by sliding the first sliding surface of the first protection device with respect to the second sliding surface of the second protection device.
  • the second sliding surface of the second protection device comprises at least two bulges extending straight and parallel.
  • the second protection device may include a shield configured to at least partially conform to a collision zone of the electric battery.
  • the first and second protection device can be made of metal.
  • the deflector system comprises a rubber pad positioned at the interface between the second protection device and the electric battery.
  • the first protection device may comprise a sliding element comprising the first sliding surface and a reinforcing element resting against the sliding element of the first sliding surface.
  • the means for connecting the first protection device to the cylinder of the brake booster may comprise a flange.
  • At least one end of the flange can be connected to the rest of the first protection device by a hook.
  • the invention also relates to a motor vehicle comprising a deflector system as described above.
  • FIG-1 illustrates an arrangement of an electric battery and a brake booster of a motor vehicle equipped with a deflector system according to one embodiment of the invention.
  • FIG.2 is an exploded view of the brake booster cylinder of the deflector system illustrated in [Fig.l],
  • FIG.3 illustrates the arrangement of [Fig.l] represented during a collision in a contact position between the first and second sliding surfaces of the first and second protection devices.
  • FIG.4 illustrates the arrangement of [Fig.l] represented during a collision in a deviated position of the first device relative to the second device.
  • the [Fig.l] illustrates an arrangement of an electric battery 1 and a brake booster 2 of a motor vehicle.
  • the electric battery 1 is a service battery.
  • the brake booster 2 otherwise called Mastervac or MVAC comprises a brake booster cylinder 3.
  • the assembly is equipped with a deflector system 4 for the protection for the protection of the electric battery 1 against the thermal risks to which it is likely to be confronted during a collision between the electric battery 1 and the cylinder brake booster 2.
  • the deflector system 4 comprises a first protection device 5 intended to be fixed on the cylinder 3 of the brake booster 4 and a second protection device 6, independent of the first protection device 5, intended to be fixed on the electric battery 1 .
  • the second protection device 6 may comprise a shield 6a configured to match at least in part the collision zone of the electric battery 1.
  • the second protection device 6 incorporates connection means to the electric battery 1.
  • the shield 6a can be connected, as shown, to an electrical harness support 7 of the electric battery 1 and to the metal outer casing of the electric battery 1 by means of spot welds.
  • the first protection device 5 incorporates means for connection to the cylinder 3 of the brake booster 2.
  • the first protection device 5 comprises a flange 5b connected to the rest of the first protection device 5 by a hook 8 and a bolt fixed in the orifice 9.
  • the dimensions and the shape of the flange are adapted to extend around the free end of the cylinder 3 and fix the assembly of the first protection device 5 on the cylinder 3.
  • the hook 8 makes it possible to easily and quickly fix the first protection device 5 on the cylinder 3.
  • the deflector system 4 further comprises means for deflecting the first protection device 5 from its initial trajectory, during a collision between the cylinder of the brake booster and the electric battery, directed towards the electric battery 1 and thus the second protection device 6.
  • the first protective device 5 comprises a sliding element 5a comprising a first sliding surface 10 positioned, when the first protective device 5 is connected to the cylinder 3, facing a second sliding surface 11 of the second device protective device 6.
  • the second sliding surface 11 is arranged on a sliding element 6b of the second protective device 6.
  • the inclination of the first and second sliding surfaces 10, 11 is adapted to deviate the initial trajectory of the first protection device 5 and, consequently, that of the cylinder 3 to which it is connected.
  • the deviation is achieved by sliding of the first sliding surface 10 of the first protection device 5 relative to the second sliding surface 11 of the second protection device 6.
  • the first protection device 5 illustrated also comprises a reinforcing element 5c resting against the sliding element 5a of the first sliding surface 10.
  • the reinforcing element 5c makes it possible to reinforce the structure of the sliding element 5a and guaranteeing the maintenance during the collision of the sliding surface 10 at its initial inclination to cooperate with the sliding surface 11 of the second protection device 6 and slide along the latter.
  • the flange 5b is in the example shown, connected to the reinforcing element 5c.
  • the second sliding surface 11 of the second protection device 6 comprises at least two bulges 12 extending straight and parallel.
  • the second sliding surface 11 of the second protection device 6 comprises at least two bulges 12.
  • the shield 6a and the sliding element 6b of the second protection device 6 are two parts formed independently and welded to each other. Provision may be made for these two elements 6a and 6b to be formed by one and the same piece.
  • reinforcement element 5c and the sliding element 5a illustrated are two pieces formed independently and welded together. Provision may also be made for these two elements 5a, 5c to be formed by one and the same piece.
  • all of the parts making up the first and second devices protective positives 5, 6 can be made of metal so that the deflector system 4 is a means of protecting the electric battery 1 that is simple and inexpensive.
  • the deflector system 4 also comprises a rubber pad 13, positioned at the interface between the second protection device 6 and the electric battery 1.
  • the pad 13 facilitates the absorption of the energy generated during the collision and avoids metal-metal contact between the shield 6a and internal components of the electric battery 1 during the collision.
  • the pad 13 can be fixed to the electric battery 1 and to the shield 6a by at least one bolt.
  • the assembly formed by the brake booster 2, the cylinder 3 and the first protective device 5 of the deflector system 4 are projected along an initial trajectory directed towards a collision zone including at least a portion of electric battery 1.
  • the first sliding surface 10 slides along the second sliding surface 11 forcing the second protection device 6, the cylinder 3 and the brake booster 2 to which it is connected. to continue its course along the plane of inclination of the sliding surface 11.
  • the trajectory of the cylinder 3 is then deflected and is no longer directed towards the initial collision zone.
  • the nose of the cylinder ends its run above the upper part of electric battery 1.
  • the shield 6a forms an additional protection of the electric battery 1, in addition to the deflection means, so as to limit the tearing of the outer casing of the electric battery 1. This makes it possible to avoid the introduction of components of the cylinder 3 and of the brake booster 2 and the contact of these components with internal components of the electric battery 1, so as to eliminate any thermal risk.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

Deflector system for an electric battery (1) and a cylinder (3) of a brake booster (2) for a motor vehicle, comprising a first protective device (5) comprising means for connecting to the cylinder (3) of the brake booster (2), a second protective device (6), independent of the first protective device (5), comprising means for connecting to the electric battery (1), and means (10, 11) for deflecting the first protective device (5) from its initial path directed toward the second protective device (6) when there is a collision between the cylinder (3) of a brake booster (2) and the electric battery (1).

Description

Description Description
Titre de l'invention : Système déflecteur pour une batterie électrique et un cylindre de servofrein d’un véhicule automobileTitle of the invention: Deflector system for an electric battery and a brake booster cylinder of a motor vehicle
[0001] La présente invention concerne, de manière générale, les véhicules automobiles comprenant un système de freinage équipé d’un servofrein, disposé à proximité d’une batterie électrique et, plus particulièrement, la protection d’une batterie électrique contre les risques thermiques lors d’une collision entre la batterie électrique et le cylindre de servofrein d’un véhicule automobile. The present invention relates, in general, to motor vehicles comprising a braking system equipped with a brake booster, arranged close to an electric battery and, more particularly, the protection of an electric battery against thermal risks. during a collision between the electric battery and the brake booster cylinder of a motor vehicle.
[0002] Plus précisément, l’invention se rapporte à un système déflecteur pour la protection contre les risques thermiques lors d’une collision entre une batterie électrique et un cylindre de servofrein d’un véhicule automobile. More specifically, the invention relates to a deflector system for protection against thermal risks during a collision between an electric battery and a brake booster cylinder of a motor vehicle.
[0003] Le servofrein est un élément servant à amplifier la force de freinage générée par le système de freinage. En d’autres termes, lorsque la pédale de frein est actionnée par le conducteur, cette force est décuplée par le servofrein. The brake booster is an element used to amplify the braking force generated by the braking system. In other words, when the brake pedal is operated by the driver, this force is increased tenfold by the brake booster.
[0004] Le servo-frein amplifie l’effort et le transmet à un cylindre dont il est équipé, destiné à transformer l’effort du conducteur en pression hydraulique. Le cylindre transmet et répartie la pression du liquide de frein aux différents éléments de freinage. [0004] The brake booster amplifies the effort and transmits it to a cylinder with which it is equipped, intended to transform the driver's effort into hydraulic pressure. The cylinder transmits and distributes the brake fluid pressure to the various braking elements.
[0005] Sur certains véhicules, le servofrein peut être monté à proximité de la batterie électrique. En cas de collision, la structure et la position du cylindre du servofrein peut alors représenter un danger pour la batterie électrique. [0005] On some vehicles, the brake booster can be mounted close to the electric battery. In the event of a collision, the structure and position of the brake servo cylinder can then represent a danger for the electric battery.
[0006] Lors d’une collision, le choc projette le cylindre selon une trajectoire dirigée vers la batterie électrique de sorte qu’il peut être amené à percuter la batterie électrique et déchirer son enveloppe externe. Les plaques métalliques internes de la batterie sont ainsi susceptibles de se retrouver en contact avec le cylindre du servofrein et causer un choc électrique, risquant de provoquer un départ de feu. [0006] During a collision, the shock projects the cylinder along a trajectory directed towards the electric battery so that it may strike the electric battery and tear its outer casing. The battery's internal metal plates are therefore likely to come into contact with the brake servo cylinder and cause an electric shock, which could cause a fire to start.
[0007] L’invention a donc pour but de remédier à ces inconvénients et de proposer un système de protection simple et efficace permettant de limiter les risques thermiques engendrés par une collision entre la batterie électrique et le cylindre de servofrein d’un véhicule automobile. The object of the invention is therefore to remedy these drawbacks and to propose a simple and effective protection system making it possible to limit the thermal risks caused by a collision between the electric battery and the brake booster cylinder of a motor vehicle.
[0008] Il est donc proposé un système déflecteur pour une batterie électrique et un cylindre de servofrein d’un véhicule automobile, comprenant un premier dispositif de protection comprenant des moyens de raccordement au cylindre du servofrein, un deuxième dispositif de protection indépendant du premier dispositif de protection comportant des moyens de raccordement à la batterie électrique, et des moyens de déviation du premier dispositif de protection de sa trajectoire initiale dirigée vers le deuxième dispositif de protection lors d’une collision entre le cylindre du servofrein et la batterie électrique. [0008]There is therefore proposed a deflector system for an electric battery and a brake booster cylinder of a motor vehicle, comprising a first protection device comprising means for connection to the brake booster cylinder, a second protection device independent of the first device protection comprising means for connection to the electric battery, and means for deflecting the first protection device from its initial trajectory directed towards the second protection device during a collision between the cylinder of the brake booster and the electric battery.
[0009] Selon un mode de réalisation, les moyens de déviation peuvent comporter des première et deuxième surfaces de glissement portées respectivement par les premier et deuxième dispositifs de protection, l’inclinaison des première et deuxième surfaces de glissement étant adaptée pour dévier la trajectoire initiale du premier dispositif de protection par glissement de la première surface de glissement du premier dispositif de protection par rapport à la deuxième surface de glissement du deuxième dispositif de protection. [0009]According to one embodiment, the deflection means may comprise first and second sliding surfaces carried respectively by the first and second protection devices, the inclination of the first and second sliding surfaces being adapted to deflect the initial trajectory of the first protection device by sliding the first sliding surface of the first protection device with respect to the second sliding surface of the second protection device.
[0010] De préférence, la deuxième surface de glissement du deuxième dispositif de protection comporte au moins deux renflements s'étendant de façon rectiligne et parallèle. [0010] Preferably, the second sliding surface of the second protection device comprises at least two bulges extending straight and parallel.
[0011] Avantageusement, le deuxième dispositif de protection peut comporter un bouclier configuré pour épouser au moins en partie une zone de collision de la batterie électrique. [0011] Advantageously, the second protection device may include a shield configured to at least partially conform to a collision zone of the electric battery.
[0012] De manière encore plus avantageuse, les premier et deuxième dispositif de protection peuvent être en métal. [0012] Even more advantageously, the first and second protection device can be made of metal.
[0013] De préférence, le système déflecteur comprend un coussinet en caoutchouc positionné à l’interface entre le deuxième dispositif de protection et la batterie électrique. [0013] Preferably, the deflector system comprises a rubber pad positioned at the interface between the second protection device and the electric battery.
[0014] Selon une caractéristique, le premier dispositif de protection peut comporter un élément de glissement comportant la première surface de glissement et un élément de renforcement en appui contre l’élément de glissement de la première surface de glissement. [0014]According to one characteristic, the first protection device may comprise a sliding element comprising the first sliding surface and a reinforcing element resting against the sliding element of the first sliding surface.
[0015] Selon une autre caractéristique, les moyens de raccordement du premier dispositif de protection sur le cylindre du servofrein peuvent comprendre une bride. [0015]According to another feature, the means for connecting the first protection device to the cylinder of the brake booster may comprise a flange.
[0016] Selon un mode de réalisation, au moins une extrémité de la bride peut être raccordée au reste du premier dispositif de protection par un crochet. According to one embodiment, at least one end of the flange can be connected to the rest of the first protection device by a hook.
[0017] L’invention se rapporte également à un véhicule automobile comprenant un système déflecteur comme décrit précédemment. The invention also relates to a motor vehicle comprising a deflector system as described above.
[0018] D’autres buts, avantages et caractéristiques ressortiront de la description qui va suivre, donnée à titre purement illustratif et faite en référence aux dessins annexés sur lesquels : Other aims, advantages and characteristics will emerge from the description which follows, given for purely illustrative purposes and made with reference to the appended drawings in which:
[0019] [Fig- 1] illustre un arrangement d’une batterie électrique et d’un servofrein d’un véhicule automobile équipé d’un système déflecteur selon un mode de réalisation de l’invention. [0019] [Fig-1] illustrates an arrangement of an electric battery and a brake booster of a motor vehicle equipped with a deflector system according to one embodiment of the invention.
[0020] [Fig.2] est une vue éclatée du cylindre de servofrein du système déflecteur illustrés à la [Fig.l], [0020] [Fig.2] is an exploded view of the brake booster cylinder of the deflector system illustrated in [Fig.l],
[0021] [Fig.3] illustre l’arrangement de la [Fig.l] représenté lors d’une collision dans une position de contact entre les première et deuxième surfaces de glissement des premier et deuxième dispositifs de protection. [0021] [Fig.3] illustrates the arrangement of [Fig.l] represented during a collision in a contact position between the first and second sliding surfaces of the first and second protection devices.
[0022] [Fig.4] illustre l’arrangement de la [Fig.l] représenté lors d’une collision dans une position déviée du premier dispositif par rapport au deuxième dispositif. [0022] [Fig.4] illustrates the arrangement of [Fig.l] represented during a collision in a deviated position of the first device relative to the second device.
[0023] La [Fig.l] illustre un arrangement d’une batterie électrique 1 et d’un servofrein 2 d’un véhicule automobile. The [Fig.l] illustrates an arrangement of an electric battery 1 and a brake booster 2 of a motor vehicle.
[0024] Dans l’exemple illustré, la batterie électrique 1 est une batterie de servitude. In the example shown, the electric battery 1 is a service battery.
[0025] Le servofrein 2, autrement nommé Mastervac ou MVAC comprend un cylindre 3 de servofrein. The brake booster 2, otherwise called Mastervac or MVAC comprises a brake booster cylinder 3.
[0026] L’ensemble est équipé d’un système déflecteur 4 pour la protection pour la protection de la batterie électrique 1 contre les risques thermiques auxquels elle est susceptible d’être confrontée lors d’une collision entre la batterie électrique 1 et le cylindre de servofrein 2. The assembly is equipped with a deflector system 4 for the protection for the protection of the electric battery 1 against the thermal risks to which it is likely to be confronted during a collision between the electric battery 1 and the cylinder brake booster 2.
[0027] Le système déflecteur 4 comporte un premier dispositif de protection 5 destiné à être fixé sur le cylindre 3 du servofrein 4 et un deuxième dispositif de protection 6, indépendant du premier dispositif de protection 5, destiné à être fixé sur la batterie électrique 1. The deflector system 4 comprises a first protection device 5 intended to be fixed on the cylinder 3 of the brake booster 4 and a second protection device 6, independent of the first protection device 5, intended to be fixed on the electric battery 1 .
[0028] Lors d’une collision, l’extrémité libre du cylindre 3 est projeté en direction de la batterie électrique 1 dans une zone de collision incluant, dans l’exemple illustré, une arête supérieure de la batterie électrique 1. [0028] During a collision, the free end of the cylinder 3 is thrown in the direction of the electric battery 1 in a collision zone including, in the example shown, an upper edge of the electric battery 1.
[0029] Comme cela est représenté à la [Fig.2], le deuxième dispositif de protection 6 peut comporter un bouclier 6a configuré pour épouser au moins en partie la zone de collision de la batterie électrique 1. [0029] As shown in [Fig.2], the second protection device 6 may comprise a shield 6a configured to match at least in part the collision zone of the electric battery 1.
[0030] De plus, le deuxième dispositif de protection 6 incorpore des moyens de raccordement à la batterie électrique 1. [0030] In addition, the second protection device 6 incorporates connection means to the electric battery 1.
[0031] Par exemple, le bouclier 6a peut être raccordé, comme cela est illustré, à un support de faisceau électrique 7 de la batterie électrique 1 et à l’enveloppe externe métallique de la batterie électrique 1 au moyen de points de soudure. [0031] For example, the shield 6a can be connected, as shown, to an electrical harness support 7 of the electric battery 1 and to the metal outer casing of the electric battery 1 by means of spot welds.
[0032] En outre, le premier dispositif de protection 5 incorpore des moyens de raccordement au cylindre 3 du servofrein 2. [0032] In addition, the first protection device 5 incorporates means for connection to the cylinder 3 of the brake booster 2.
[0033] A cet égard, dans l’exemple illustré, le premier dispositif de protection 5 comprend une bride 5b raccordée au reste du premier dispositif de protection 5 par un crochet 8 et un boulon fixé dans l’orifice 9. Les dimensions et la forme de la bride sont adaptées pour s’étendre autour de l’extrémité libre du cylindre 3 et fixer l’ensemble du premier dispositif de protection 5 sur le cylindre 3. In this respect, in the example illustrated, the first protection device 5 comprises a flange 5b connected to the rest of the first protection device 5 by a hook 8 and a bolt fixed in the orifice 9. The dimensions and the shape of the flange are adapted to extend around the free end of the cylinder 3 and fix the assembly of the first protection device 5 on the cylinder 3.
[0034] Le crochet 8 permet de fixer facilement et rapidement le premier dispositif de protection 5 sur le cylindre 3. [0034] The hook 8 makes it possible to easily and quickly fix the first protection device 5 on the cylinder 3.
[0035] Le système déflecteur 4 comprend, en outre, des moyens de déviation du premier dispositif de protection 5 de sa trajectoire initiale, lors d’une collision entre le cylindre du servofrein et la batterie électrique, dirigée vers la batterie électrique 1 et ainsi le deuxième dispositif de protection 6. The deflector system 4 further comprises means for deflecting the first protection device 5 from its initial trajectory, during a collision between the cylinder of the brake booster and the electric battery, directed towards the electric battery 1 and thus the second protection device 6.
[0036] Le premier dispositif de protection 5 comporte un élément de glissement 5a comportant une première surface de glissement 10 positionnée, lorsque le premier dispositif de protection 5 est raccordé au cylindre 3, en regard d’une deuxième surface de glissement 11 du deuxième dispositif de protection 6. La deuxième surface de glissement 11 est disposée sur un élément de glissement 6b du deuxième dispositif de protection 6. The first protective device 5 comprises a sliding element 5a comprising a first sliding surface 10 positioned, when the first protective device 5 is connected to the cylinder 3, facing a second sliding surface 11 of the second device protective device 6. The second sliding surface 11 is arranged on a sliding element 6b of the second protective device 6.
[0037] L’inclinaison des première et deuxième surfaces de glissement 10, 11 est adaptée pour dévier la trajectoire initiale du premier dispositif de protection 5 et, par conséquent, celle du cylindre 3 auquel il est raccordé. La déviation est réalisée par glissement de la première surface de glissement 10 du premier dispositif de protection 5 par rapport à la deuxième surface de glissement 11 du deuxième dispositif de protection 6. The inclination of the first and second sliding surfaces 10, 11 is adapted to deviate the initial trajectory of the first protection device 5 and, consequently, that of the cylinder 3 to which it is connected. The deviation is achieved by sliding of the first sliding surface 10 of the first protection device 5 relative to the second sliding surface 11 of the second protection device 6.
[0038] Avantageusement, le premier dispositif de protection 5 illustré comporte également un élément de renforcement 5c en appui contre l’élément de glissement 5a de la première surface de glissement 10. L’élément de renforcement 5c permet de renforcer la structure de l’élément de glissement 5a et garantir le maintien lors de la collision de la surface de glissement 10 à son inclinaison initiale pour coopérer avec la surface de glissement 11 du deuxième dispositif de protection 6 et glisser le long de cette dernière. [0038] Advantageously, the first protection device 5 illustrated also comprises a reinforcing element 5c resting against the sliding element 5a of the first sliding surface 10. The reinforcing element 5c makes it possible to reinforce the structure of the sliding element 5a and guaranteeing the maintenance during the collision of the sliding surface 10 at its initial inclination to cooperate with the sliding surface 11 of the second protection device 6 and slide along the latter.
[0039] La bride 5b, est dans l’exemple illustré, raccordé à l’élément de renforcement 5c. The flange 5b, is in the example shown, connected to the reinforcing element 5c.
[0040] De préférence, la deuxième surface de glissement 11 du deuxième dispositif de protection 6 comporte au moins deux renflements 12 s'étendant de façon rectiligne et parallèle. Preferably, the second sliding surface 11 of the second protection device 6 comprises at least two bulges 12 extending straight and parallel.
[0041] Dans l’exemple illustré, la deuxième surface de glissement 11 du deuxième dispositif de protection 6 comporte au moins deux renflements 12. In the example shown, the second sliding surface 11 of the second protection device 6 comprises at least two bulges 12.
[0042] La présence des renflements permet de faciliter le glissement de la première surface de glissement 10 sur la deuxième surface de glissement 11 et donc de faciliter la déviation de la trajectoire initiale du cylindre 3 de servofrein 2. [0042] The presence of the bulges facilitates the sliding of the first sliding surface 10 on the second sliding surface 11 and therefore facilitates the deviation from the initial trajectory of the cylinder 3 of the brake booster 2.
[0043] Dans l’exemple illustré, le bouclier 6a et l’élément de glissement 6b du deuxième dispositif de protection 6 sont deux pièces formées indépendamment et soudées l’une à l’autre. On pourra prévoir que ces deux éléments 6a et 6b soient formée par une seule et même pièce. In the example shown, the shield 6a and the sliding element 6b of the second protection device 6 are two parts formed independently and welded to each other. Provision may be made for these two elements 6a and 6b to be formed by one and the same piece.
[0044] De plus, l’élément de renforcement 5c et l’élément de glissement 5a illustrés sont deux pièces formées indépendamment et soudées l’une à l’autre. On pourra également prévoir que ces deux éléments 5a, 5c soient formée par une seule et même pièce. [0044] In addition, the reinforcement element 5c and the sliding element 5a illustrated are two pieces formed independently and welded together. Provision may also be made for these two elements 5a, 5c to be formed by one and the same piece.
[0045] Avantageusement, l’ensemble des pièces composant les premier et deuxième dis- positifs de protection 5, 6 peuvent être en métal de sorte que le système déflecteur 4 est un moyen de protection de la batterie électrique 1 simple et peu cher. [0045] Advantageously, all of the parts making up the first and second devices protective positives 5, 6 can be made of metal so that the deflector system 4 is a means of protecting the electric battery 1 that is simple and inexpensive.
[0046] De préférence, le système déflecteur 4 comprend, en outre, un coussinet 13 en caoutchouc, positionné à l’interface entre le deuxième dispositif de protection 6 et la batterie électrique 1. [0046] Preferably, the deflector system 4 also comprises a rubber pad 13, positioned at the interface between the second protection device 6 and the electric battery 1.
[0047] Le coussinet 13 facilite l’absorption de l’énergie générée lors de la collision et évite le contact métal-métal entre le bouclier 6a et des composants internes de la batterie électrique 1 lors de la collision. The pad 13 facilitates the absorption of the energy generated during the collision and avoids metal-metal contact between the shield 6a and internal components of the electric battery 1 during the collision.
[0048] Le coussinet 13 peut être fixé à la batterie électrique 1 et au bouclier 6a par au moins un boulon. The pad 13 can be fixed to the electric battery 1 and to the shield 6a by at least one bolt.
[0049] Lors d’une collision, l’ensemble formé par le servofrein 2, le cylindre 3 et le premier dispositif de protection 5 du système déflecteur 4 sont projetés suivant une trajectoire initiale dirigée vers une zone de collision incluant au moins une portion de la batterie électrique 1. During a collision, the assembly formed by the brake booster 2, the cylinder 3 and the first protective device 5 of the deflector system 4 are projected along an initial trajectory directed towards a collision zone including at least a portion of electric battery 1.
[0050] Dans une position de contact illustré à la [Fig.3], la première surface de glissement 10 du premier dispositif de protection 5 entre en contact avec la deuxième surface de glissement 11 du deuxième dispositif de protection 6. La deuxième surface de glissement 11 force le premier dispositif de protection 5 à dévier de sa trajectoire initiale. In a contact position illustrated in [Fig.3], the first sliding surface 10 of the first protection device 5 comes into contact with the second sliding surface 11 of the second protection device 6. The second surface of slippage 11 forces the first protection device 5 to deviate from its initial trajectory.
[0051] Comme cela est illustré à la [Fig.4], la première surface de glissement 10 glisse le long de la deuxième surface de glissement 11 forçant le deuxième dispositif de protection 6, le cylindre 3 et le servofrein 2 auxquels il est raccordé à poursuivre sa course selon le plan d’inclinaison de la surface de glissement 11. La trajectoire du cylindre 3 est alors déviée et n’est plus dirigée vers la zone de collision initiale. Le nez du cylindre termine sa course au-dessus de la partie supérieure de la batterie électrique 1. [0051] As illustrated in [Fig.4], the first sliding surface 10 slides along the second sliding surface 11 forcing the second protection device 6, the cylinder 3 and the brake booster 2 to which it is connected. to continue its course along the plane of inclination of the sliding surface 11. The trajectory of the cylinder 3 is then deflected and is no longer directed towards the initial collision zone. The nose of the cylinder ends its run above the upper part of electric battery 1.
[0052] La déchirure de l’enveloppe externe est évitée ains que tout départ de feu provenant de la batterie électrique 1. [0052] The tearing of the outer casing is avoided as well as any outbreak of fire from the electric battery 1.
[0053] Le bouclier 6a forme une protection supplémentaire de la batterie électrique 1, en sus des moyens de déviation, de façon à limiter la déchirure de l’enveloppe externe de la batterie électrique 1. Ceci permet d’éviter l’introduction de composants du cylindre 3 et du servofrein 2 et le contact de ces composants avec des composants internes de la batterie électrique 1, de façon à écarter tout risque thermique. The shield 6a forms an additional protection of the electric battery 1, in addition to the deflection means, so as to limit the tearing of the outer casing of the electric battery 1. This makes it possible to avoid the introduction of components of the cylinder 3 and of the brake booster 2 and the contact of these components with internal components of the electric battery 1, so as to eliminate any thermal risk.

Claims

Revendications Claims
[Revendication 1] Système déflecteur pour une batterie électrique (1) et un cylindre (3) de servofrein (2) d’un véhicule automobile, comprenant un premier dispositif de protection (5) comprenant des moyens de raccordement au cylindre (3) du servofrein (2), un deuxième dispositif de protection (6) indépendant du premier dispositif de protection (5) comportant des moyens de raccordement à la batterie électrique (1), et des moyens de déviation du premier dispositif de protection (5) de sa trajectoire initiale dirigée vers le deuxième dispositif de protection (6) lors d’une collision entre le cylindre (3) du servofrein (2) et la batterie électrique (1). [Claim 1] Deflector system for an electric battery (1) and a brake servo cylinder (3) (2) of a motor vehicle, comprising a first protection device (5) comprising means for connection to the cylinder (3) of the brake booster (2), a second protection device (6) independent of the first protection device (5) comprising means for connection to the electric battery (1), and means for deflecting the first protection device (5) from its initial trajectory directed towards the second protection device (6) during a collision between the cylinder (3) of the brake booster (2) and the electric battery (1).
[Revendication 2] Système déflecteur selon la revendication 1, dans lequel les moyens de déviation comportent des première et deuxième surfaces de glissement (10, 11) portées respectivement par les premier et deuxième dispositifs de protection (5, 6), l’inclinaison des première et deuxième surfaces de glissement (10, 11) étant adaptée pour dévier la trajectoire initiale du premier dispositif de protection (5) par glissement de la première surface de glissement (10) du premier dispositif de protection par rapport à la deuxième surface de glissement (11) du deuxième dispositif de protection (6). [Claim 2] Deflector system according to Claim 1, in which the deflecting means comprise first and second sliding surfaces (10, 11) carried respectively by the first and second protection devices (5, 6), the inclination of the first and second sliding surfaces (10, 11) being adapted to deflect the initial trajectory of the first protective device (5) by sliding of the first sliding surface (10) of the first protective device with respect to the second sliding surface (11) of the second protection device (6).
[Revendication 3] Système déflecteur selon la revendication 2, dans lequel la deuxième surface de glissement (11) du deuxième dispositif de protection (6) comporte au moins deux renflements (12) s'étendant de façon rectiligne et parallèle. [Claim 3] Deflector system according to Claim 2, in which the second sliding surface (11) of the second protective device (6) comprises at least two bulges (12) extending straight and parallel.
[Revendication 4] Système déflecteur selon la revendication 2 ou 3, dans lequel le deuxième dispositif de protection (6) comporte un bouclier (6a) configuré pour épouser au moins en partie une zone de collision de la batterie électrique (1). [Claim 4] Deflector system according to claim 2 or 3, in which the second protection device (6) comprises a shield (6a) configured to conform at least in part to a collision zone of the electric battery (1).
[Revendication 5] Système déflecteur selon l’une quelconque des revendications précédentes, dans lequel les premier et deuxième dispositif de protection (5, 6) sont en métal. [Claim 5] Deflector system according to any one of the preceding claims, in which the first and second protection device (5, 6) are made of metal.
[Revendication 6] Système déflecteur selon l’une quelconque des revendications précédentes, comprenant un coussinet (13) en caoutchouc positionné à l’interface entre le deuxième dispositif de protection (6) et la batterie électrique (1). [Claim 6] Deflector system according to any one of the preceding claims, comprising a rubber cushion (13) positioned at the interface between the second protection device (6) and the electric battery (1).
[Revendication 7] Système déflecteur selon l’une quelconque des revendications précédentes, dans lequel le premier dispositif de protection (5) comporte un élément de glissement (5a) comportant la première surface de glissement (10) et un élément de renforcement (5c) en appui contre l’élément de glissement (5a) de la première surface de glissement (10). [Claim 7] Deflector system according to any one of the preceding claims, in which the first protection device (5) comprises a sliding element (5a) comprising the first surface of slider (10) and a reinforcement element (5c) resting against the slider element (5a) of the first sliding surface (10).
[Revendication 8] Système déflecteur selon l’une quelconque des revendications précédentes, dans lequel les moyens de raccordement du premier dispositif de protection (5) sur le cylindre du servofrein comprennent une bride (5b). [Claim 8] Deflector system according to any one of the preceding claims, in which the means for connecting the first protection device (5) to the brake booster cylinder comprise a flange (5b).
[Revendication 9] Système déflecteur selon la revendication 8, dans lequel au moins une extrémité de la bride (5b) est raccordée au reste du premier dispositif de protection (5) par un crochet (8). [Claim 9] Deflector system according to claim 8, in which at least one end of the flange (5b) is connected to the rest of the first protection device (5) by a hook (8).
[Revendication 10] Véhicule automobile comprenant un système déflecteur (4) selon l’une quelconque des revendications 1 à 9. [Claim 10] Motor vehicle comprising a deflector system (4) according to any one of Claims 1 to 9.
PCT/EP2022/080691 2021-11-08 2022-11-03 Deflector system for an electric battery and brake booster cylinder for a motor vehicle WO2023079008A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2111804A FR3128919A1 (en) 2021-11-08 2021-11-08 Deflector system for an electric battery and a brake servo cylinder of a motor vehicle
FRFR2111804 2021-11-08

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WO2023079008A1 true WO2023079008A1 (en) 2023-05-11

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WO (1) WO2023079008A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084948A5 (en) * 1970-03-21 1971-12-17 Gen Motors Corp
EP2439111A1 (en) * 2010-10-05 2012-04-11 Robert Bosch GmbH Master cylinder with protective end
FR3050156A1 (en) * 2016-04-15 2017-10-20 Renault Sas BRAKING DEVICE FOR MOTOR VEHICLE
DE102017211345A1 (en) * 2017-07-04 2019-01-10 Ford Global Technologies, Llc Vehicle system comprising a master cylinder of a brake system and a housing with a deflection element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084948A5 (en) * 1970-03-21 1971-12-17 Gen Motors Corp
EP2439111A1 (en) * 2010-10-05 2012-04-11 Robert Bosch GmbH Master cylinder with protective end
FR3050156A1 (en) * 2016-04-15 2017-10-20 Renault Sas BRAKING DEVICE FOR MOTOR VEHICLE
DE102017211345A1 (en) * 2017-07-04 2019-01-10 Ford Global Technologies, Llc Vehicle system comprising a master cylinder of a brake system and a housing with a deflection element

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