• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a protection system comprising at least one inflatable safety structure (1), each associated with a gas generator that can be activated by an external control, characterized in that said external control comprises an electrical signal coming from an automated system responsible for controlling critical safety functions of a vehicle (50), corresponding to a predictive information of a shock, in that the gas generator is configured to generate a gas over a period such that the total duration of inflation of the inflatable structure ( 1) is greater than 50 milliseconds and in that the inflatable structure is sealed.
    公开号:FR3065929A1
    申请号:FR1754011
    申请日:2017-05-05
    公开日:2018-11-09
    发明作者:Paul Philippe Cord
    申请人:Paul Philippe Cord；
    IPC主号:
    专利说明:

    Holder (s):
    CORD PAUL PHILIPPE.
    O Extension request (s):
    (® Agent (s): IP TRUST.
    FR 3 065 929 - A1 ® LONG-TERM INFLATABLE PERSONAL PROTECTION SYSTEM.
    (® The invention relates to a protection system comprising at least one inflatable safety structure (1) each associated with a gas generator activatable by an external control characterized in that said external control comprises an electrical signal coming from an automated system responsible for the critical safety functions of a vehicle (50), corresponding to information predicting an impact, in that the gas generator is configured to generate a gas over a period such as the total duration of inflation of the structure inflatable (1) is greater than 50 milliseconds and in that the inflatable structure is waterproof.
    GOODS WITH A STRUCTURE

    PROTECTION SYSTEM FOR PERSONS AND GOODS INCLUDING A LONG-LASTING INFLATABLE STRUCTURE
    TECHNICAL FIELD OF THE INVENTION The invention relates to a protection system comprising at least one inflatable safety structure each associated with a gas generator activatable by an external control [002] The protection system according to the invention is intended including, but not limited to, the autonomous vehicle.
    STATE OF THE ART [003] The protection systems are conventionally composed of airbags associated with gas generators actuating their deployment during the impact as well as seat belt pretensioners. The gas generators of airbags and pretensioners of belts present however major drawbacks.
    First, their actuation is triggered by the shock itself. The event detection time and the activation of protection systems is reduced to a few hundredths of a second. (1 to 2 hundredths of a second for detection, 1.5 to 4 hundredths of a second for activation of protection systems, ie 0.06 seconds in total). This rapid implementation of airbags and pretensioners can create degraded performance in terms of protection if not injuries. Indeed, the rapid deployment of an airbag can be dangerous for a passenger when the latter occupies a position other than its so-called normal position. It can thus create serious injuries for people, for example too close to the steering wheel or having an arm or a leg on the dashboard. The airbags are then light bags conventionally made of nylon and fitted with large vents to deflate the bag. Due to the presence of such vents, they offer a "window" of efficiency of a few hundredths (1/100) of a second, and therefore limited therefore to the first shock. In addition, the most current current technologies do not allow to exceed 1.5 moles of gas volumes. They therefore remain limited to gas generation times of a few hundredths of a second. Finally, the tension of the seat belt is only effective when it is properly positioned. However, the pre-tension cannot correct any shoulder play created by the passenger for reasons of comfort.
    In addition, the protection systems currently used in vehicles are essentially systems for protecting the occupants of the vehicle, and not pedestrians or bicycles.
    In order to overcome these drawbacks, new gas generators are, moreover, being studied to allow a modulated deployment of the airbags and in particular taking into account the mass of inertia of the passenger by means of information provided by seat occupancy detector systems. However, these protection systems remain unsatisfactory to date with the deployment issue. Furthermore, the activation of the gas generators remains conditioned by the shock itself.
    It has also been proposed in patents EP2599669 and US8985652 protection systems for pedestrians. The systems offered consist of airbags deploying outside, at the windshield or at the bumper towards the front of the vehicle. However, these protection systems also remain insufficient in terms of pedestrian protection. As for the system deploying at the level of the windshield, the deployment of the airbag remains conditioned by the impact of the pedestrian with the car. It does not provide any protection at the level of the legs of the pedestrian. As for the system deploying at the bumper, it does not provide protection for the pedestrian in the event of the pedestrian being thrown onto the hood after impact on the airbag. No protection is then ensured after the first shock.
    The invention aims to remedy these problems by proposing a protection system making it possible to improve the protection of pedestrians and bicycles as well as that of the occupants of a vehicle in the event of an impact.
    OBJECT OF THE INVENTION To this end, and according to a first aspect, the invention provides a protection system comprising at least one inflatable safety structure each associated with a gas generator activatable by an external control, the latter being remarkable in that said external control comprises an electrical signal coming from an automated system responsible for the critical safety functions of a vehicle, corresponding to information predicting an impact, the gas generator is configured to generate a gas on a duration such that the total duration of inflation (or deployment) of the inflatable structure is greater than 50 milliseconds [make explicit in total description: whether continuous or discontinuous] and in that the inflatable structure is waterproof.
    By total duration of swelling means the full duration of swelling, whether the generation is continuous or impulse.
    By waterproof is meant without damping vent. On the other hand, there may be provided in the inflatable structure at least one vent regulated by the pressure (cover) or electronically by the automated system regulating the deflation of the structure.
    Advantageously, the inflatable structure consists of at least one series of bags taking a tubular shape in the deployed position, said bags being assembled laterally and in fluid communication with each other.
    Advantageously, the bags are assembled according to a generator, the distance between said bags being less than the diameter of said bags.
    Advantageously, the inflatable structure further comprises a reinforcing bag taking a tubular shape in the deployed position, extending transversely to the series of tubular bags at one of the ends of said assembly.
    Advantageously, the inflatable structure comprises an additional protective bag taking a tubular shape in the deployed position and extending transversely to the series of tubular bags at the other end of said assembly.
    Advantageously, the reinforcement bag and / or the additional protective bag is (are) in fluid communication with at least one of the tubular bags from the series of bags.
    According to a particular implementation, the inflatable structure and the gas generator are placed in a front part of the vehicle and are arranged so that, in the event of a predicted impact by the automated system, the inflatable structure deploys towards the front of the vehicle and on at least the grille of the vehicle. A structure thus configured is advantageously intended for the protection of pedestrians and / or used as shock absorber.
    According to another particular implementation, the inflatable structure consists of two series of bags taking a tubular shape in the form of a circular arc in the deployed position, the bags of each series being assembled laterally and in fluid communication with each other. with the others, each series of bags being integrated on either side of a vehicle seat and comprising reciprocal attachment means. A structure thus configured is advantageously intended for the protection of the passengers of the vehicle.
    Advantageously, the inflatable structure is made of natural or synthetic rubber such as Polyvinyl Chloride, Polyisobutylene, Polyuethane, Neoprene, Chlorosulfonated Polyethylene.
    Advantageously, the protection system comprises at least one shock absorber implemented by a jack and placed between at least one of the vehicle bumpers and a fixed part of the vehicle, the jack being controlled by the automated system. .
    Advantageously, the protection system comprises at least one seat belt pretensioner capable of being actuated by the automated system and activated over a period greater than 50 milliseconds.
    Advantageously, the automated system is configured to select one or more inflatable structures, at least one of the shock absorbers and / or at least one of the seat belt pretensioners as a function of the predictive information established.
    Advantageously, the protection system includes a strap locking system in the upper part of the seats coupled to energy absorbers, the characteristics of which can be adjusted as a function of the morphology of the passenger installed on the seat and identified by the system. automated.
    Advantageously, the gas generator comprises a first chamber containing solid propellant, and a second chamber containing a second composition consisting of a mixture of at least one oxidizing charge and at least one reducing charge, said solid propellant forming a block whose thickness and chemical characteristics are adjusted to ensure complete combustion of the gases in more than 50 milliseconds.
    Advantageously, the gas generator comprises as the only propellant composition whose ballistic characteristics are adjusted to ensure complete combustion in more than 50 milliseconds.
    Advantageously, the gas generator comprises a single composition consisting of a mixture of at least one oxidizing charge and at least one reducing charge, the decomposition of which is controlled by an energizing device configured to ensure complete generation of the gases. in more than 50 milliseconds.
    Advantageously, compressed gases can be used alone or in addition to the generators described above.
    The protection system is intended to be implemented in particular but not exclusively with an autonomous vehicle. The autonomous vehicle indeed presents new opportunities in terms of anticipating an accident to avoid it, but also by opening up possibilities of reducing the severity of an accident when it is inevitable. With the autonomous vehicle, the possibility of a frontal-frontal impact can be detected at 150m, which is around 9 seconds at 60 km / h, 4.5 seconds at 120km / h before the impact.
    The invention also relates to a protection system comprising a seat belt pretensioner capable of being actuated by an automated system responsible for the critical safety functions of a vehicle and activated for a duration greater than 50 milliseconds. Advantageously, the protection system includes an inflatable structure as well as a gas generator as previously described. Advantageously, the protection system comprises a system for locking straps in the upper part of the seats coupled to energy absorbers, the characteristics of which can be adjusted according to the morphology of the passenger installed on the seat and identified by the automated system.
    The invention also relates to a protection system comprising at least one shock absorber placed between at least one of the vehicle bumpers and a fixed part of the vehicle. Advantageously, the protection system includes an inflatable structure as well as a gas generator as previously described.
    BRIEF DESCRIPTION OF THE FIGURES Other objects and advantages of the invention will become apparent during the description which follows, made with reference to the appended drawings, in which:
    - Figure 1 shows a schematic view of a vehicle comprising an inflatable structure according to an exemplary embodiment of a protection system according to the invention, the inflatable structure being shown in the deployed position;
    - Figure 2 shows a detailed view of the inflatable structure illustrated in Figure 1;
    - Figures 3a and 3b show a side view and front view respectively of a vehicle seat equipped with an inflatable structure according to another embodiment of the protection system according to the invention;
    - Figures 4a and 4b show an example of assembly of bags constituting an inflatable structure in the position respectively not deployed and deployed;
    - Figure 5 shows a bag view of a swelling structure constituting a shock absorber.
    For clarity, identical or similar elements of the various embodiments are identified by identical reference signs in all of the figures.
    DETAILED DESCRIPTION OF THE FIGURES In connection with the figures which follow, there is described a protection system comprising at least one inflatable safety structure, each structure being associated respectively with a gas generator activatable by an external control. Only the inflatable structures shown alone, equipping the vehicle or one of its parts are illustrated.
    Automated system controlling the inflatable structures and other protective equipment The gas generator of each of the inflatable structures can be activated by an external command which includes an electrical signal from an automated system responsible for the critical safety functions of a vehicle , corresponding to information predicting a shock. The automated system comprises a control unit which, on the basis of the information received, activates the inflatable structure or structures and other suitable protective equipment which will make it possible to minimize the effects of the shock on persons or, where appropriate, the structures.
    The automated system intervenes downstream of the localization and analysis systems of the basic system having made all the avoidance and emergency stop decisions, and when an undesirable event will certainly occur within a period a few seconds or a few fractions of a second.
    The automated system receives all of the information external to the vehicle, such as the position and the speed of all of the vehicles involved, the position of the obstacles, etc., and information relating to the occupants of the vehicle such as the position and the size of each passenger, the presence of a child, a baby in a chair, etc.
    Depending on the information collected and analyzed which characterize the so-called predictive information, the automated system controls the activation of one or a combination of the protective elements with which the vehicle is equipped chosen from an inflatable structure constituting a protection for pedestrians and bicycles, an inflatable structure fitted to the vehicle seats (passenger seat, child seat or baby seat), front and side inflatable structures, one or more belt pretensioners, a front shock absorber, a rear impact. Examples of protective elements will be presented later.
    The automated system can also, according to a particularly advantageous embodiment, intervene on the path of the vehicle to optimize the configuration of the shock. This will be the case in particular when the vehicle concerned is a motorcycle for which a position perpendicular to the obstacle allows the frontal inflatable structure to be fully effective.
    Advantageously, the automated system guarantees the permanent wearing of the seat belt of all passengers. It can thus be provided that the vehicle cannot start or at least roll when it is detected that all the occupants of the vehicle are not attached.
    Advantageously, the different activation systems are linked by a Bus system which also checks them in real time. Advantageously, a specific logic diagram for each vehicle makes it possible to optimize the various protective equipment (inflatable structure or other).
    Inflatable structure The inflatable structures used are waterproof bags. Thermal and gaseous losses during all the operational phases are thus limited, while the effluents and any dust are retained in the bag. It can also be planned to add additives (hopcalite, talc, zinc oxide, etc.) to the bags in order to treat the effluents retained therein. By "adding additives to the bags" is meant additives contained in the structure of the bag or arranged inside the bag.
    Due to "long" inflation times, up to ten times longer than that of current technologies, the bags are flexible. They can be made of PVC (Polyvinyl Chloride) or any other material of the type used for making inflatable boats of the Zodiac® type.
    According to the implementation for which the inflatable structure is intended, it is preferred an inflatable structure formed of a plurality of bags assembled together and taking a tubular shape in the deployed position by activation of the gas generator associated with the structure inflatable. According to a particular and advantageous configuration, the bags form, in the deployed position, tubes of 3 to 6 cm in diameter with an adapted length, arranged side-by-side laterally, the distance between two successive tubes being less than their radius. They are preferably pressurized at 0.12 to 0.20 MPa absolute as required.
    Depending on the protection for which the inflatable structures are intended, these may have a flat arrangement of the curtain type, an example of which is illustrated in FIG. 2 or in shell of the type of that illustrated in FIGS. 3, 4 and 5 .
    The "flat" arrangement will be preferred for the protection of pedestrians or lateral protection. The "shell" arrangement will be preferred for the protection of the occupants of vehicle 50 or for shock absorbers.
    The shell arrangement is obtained by assembling tubes according to a generator, with a distance between the tubes less than the diameter (Figures 4a, 4b). When the bags are inflated, given their assembly and their arrangement with respect to each other, the bags curl. The "shell" arrangement can also be obtained by providing a thickness variation according to a generator (not shown).
    As before, the bags, when pressurized, curve. According to another implementation illustrated in Figure 5, the tubular bags are blocked over a distance less than their length so that they deploy in an arc. Such an arrangement will be implemented advantageously to form shock absorbers.
    Figures 1 and 2 illustrate an example of an inflatable structure 1 implemented for the protection of pedestrians and bicycles.
    The inflatable structure 1 and the associated gas generator 11 are advantageously placed at the front of the vehicle 50. In the example illustrated in FIG. 1, the two parts are placed in the bumper 51 of the vehicle 50. They could also be placed at the level of the grille. Whatever the configuration, the two parts are arranged so that, in the event of impact prediction by the automated system, the inflatable structure 1 deploys towards the front of the vehicle 50 and over all or part of the bumper as illustrated in the figure 1. Thus, the inflatable structure 1, in the deployed position, comprises a part extending beyond the vehicle 50, towards the front of the latter and a second part covering the grille and extending above the hood. The front part advantageously advances from one meter to +/- 0.5 meters in front of the vehicle 50 so that the first impact of the pedestrian is the inflatable structure 1. In the configuration illustrated, the inflatable structure 1 is dimensioned to extend on only half of the hood. It can of course be provided with different dimensions, in particular a dimension such that the second part extends to the windshield of the vehicle 50 without departing from the scope of the invention. Thus the pedestrian impact is not done in a vertical position with the vehicle 50 but with an angle. This greatly reduces the impact on the grille of the vehicle 50.
    Advantageously, the inflatable structure 1 to protect pedestrians and bicycles, consists of a series of bags 2 assembled laterally and in fluid communication with each other. FIG. 2 shows an example of such an inflatable structure 1, the bags 2 constituting it respectively being in the deployed position.
    In the illustrated embodiment, the inflatable structure 1 is a PVC bag having dimensions of 2.2 m × l, 4 m. It consists of 16 bags 2 capable of taking respectively in the deployed position a tubular shape. Each bag, inflated to a pressure of 0.15 MPa, has in the deployed position a diameter of 6 cm, a length of 2.20 m. The bags 2 are separated from each other by an average of 3 cm.
    The structure further comprises a complementary bag called reinforcement bag 3 extending transversely to the set of juxtaposed tubular bags 2, in the lower part, also designated as the front part of said set with reference to its positioning relative to the vehicle 50 when the inflatable structure 1 is deployed. The reinforcement bag is in fluid communication with at least one of the juxtaposed tubular bags 2 of the assembly. Inseparable from the series of bags 2 fixed side by side, the reinforcement bag has the function of reinforcing the front part of the inflatable structure 1. According to a given embodiment, the reinforcement bag 3 has in the deployed position a tubular shape having a diameter of 6 cm and a length of 1.4 m.
    Although not shown, an additional protective bag can also be provided extending transversely to the set of juxtaposed tubular bags 2, in the upper part of the latter. According to a given embodiment, the additional protective bag has in the deployed position a tubular shape having dimensions identical to those of the reinforcement bag 3, ie a diameter of 6 cm, a length of 1.4 m. with a variable thickness according to a generator: double against the bag, single external side. The additional bag placed in the upper part has the function of "closing" the protective assembly made up of the series of bags 2. To do this, the additional bag has a variable thickness so as to curve when it is pressurized and thus ensure the shell function to keep the pedestrian on the vehicle. The additional bag is inflated either through orifices calibrated from the series of bags 2, or by an independent gas generator controlled by the automated system or by another device.
    The gas generator 11 advantageously implemented with the inflatable structure 1 for the pedestrian protection described described has the characteristics defined in the table below.
    Primary loading Double base 1133 mass 8g Secondary loading Mix 18 NA + 4g NiGu in prills Operating time 300 ms
    By prills is meant a powdery composition assembled into porous grains. The prills are obtained by quenching a mixture in the gaseous state.
    As will be understood, the deployment is carried out before the impact of the shock. As an illustration, at 35 km / h, the inflatable structure 1 only needs to be activated 5 meters (or 0.5 seconds) before impact. This support for the deployment of the inflatable structure 1 is carried out by the automated system with which the relative position of the car relative to the pedestrian, cyclist or any other obstacle has been determined.
    Figures 3a and 3b show an example of an inflatable structure 10 implemented for the protection of the occupants of a vehicle. To do this, the inflatable structure 10 and the gas generator (not shown) are integrated into the seat 52. The seat 52 can be a seat specific to the vehicle 50 or an attached seat such as a child seat.
    In the illustrated embodiment, the inflatable structure 10 consists of two series of bags 2 taking a tubular shape in the deployed position. As with the inflatable pedestrian protection structure 10, the bags 2 of each series are placed side by side and in fluid communication with each other. Each series of bags 2, arranged on either side of the seat back 52, includes reciprocal attachment means 6, such as for example magnets associated with hooks, to allow the two series of bags 2 to be joined together. one with the other when the inflatable structure 10 is in the deployed position. According to an exemplary embodiment given, the bags 2 have in the deployed position a tubular shape having a diameter of 6 cm and a length of 1.2 m.
    The bags 2 of the two series are arranged at a seat 52 of the vehicle 50 to deploy relative to each other so as to form an arc-shaped protective envelope extending around of the passenger seated on the seat 52. They thus define a curtain type protection. By the play of the thickness or the distance between tubes, the shape of the arc can be adjusted if necessary. The volumes required are around 10 liters. The generators can consist of propellant alone.
    It can also be provided, replacing the two series of bags 2 arranged on either side of the seat back, with a single bag capable of rendering a tubular shape integrated on one side of the seat so as to bulge sideways in the event of a side impact.
    It can also be provided in the case of child protection, replacing the two series of bags 2 arranged on either side of the seat back, a lap belt or an inflatable tablet.
    In order to improve the protection of the occupants of vehicle 50, it can be provided that the protection system comprises a system for locking straps in the upper part of the seats coupled to energy absorbers, the characteristics of which can be adjusted by depending on the morphology of the passenger installed on the seat and identified by the automated system.
    Advantageously, in addition to an integrated inflatable structure 10, the seat is configured to be able to move axially so as to contribute to the absorption of a front or rear shock.
    Other protective elements can also be provided.
    In the case of the protection of the occupants of the vehicle 50 in the event of a frontal impact, two types of protection are provided depending on whether the steering wheel is maintained or not.
    When the steering wheel is held, the inflatable structure is a 60-liter waterproof bag, of conventional shape, made of Nylon or Zodiac type for example, vents regulated by pressure (seal) or electronically by the automated system regulating the bag deflation when the occupant decelerates.
    When the steering wheel is not maintained, an inflatable structure can be provided consisting of 6 bags 2 of tubular shape, with a diameter of 6 cm and a length of 1.2 m, spaced from each other by 3 cm, and arranged at the dashboard. The characteristics of the gas generator used are preferably those indicated in the table below.
    Primary loading Double base 1133, mass 3g Secondary loading Mix 6 g NA + lg NiGu in prills
    Alternatively, it can be provided, replacing the inflatable structure consisting of 6 bags 2, two inflatable structures, one on the driver's side and the other on the passenger's side, blocked over a distance less than its length so that they deploy in an arc when the associated generator is activated. According to an exemplary embodiment, each inflatable structure is made up of 6 tubular bags 2 with a diameter of 6 cm and a length of 0.6 m. They are advantageously placed at a distance of 0.4 m. The characteristics of the gas generator used are preferably those indicated in the table below.
    Primary loading Double base 1133, mass 5g Secondary loading 0
    There can also be provided at least one shock absorber implemented by a jack and placed between at least one of the vehicle bumpers 50 and a fixed part of the vehicle 50. The front bumpers and / or rear are thus moved axially relative to the initial location of the bumpers, advantageously of the order of 30 to 50 cm. The absorbers are controlled by the automated system.
    Gas generator The gas generator is configured to generate a gas over a period such that the total inflation time of the inflatable structure is greater than 50 milliseconds.
    The realization of a swelling over such a period can be obtained via a double-chamber generator respectively comprising a so-called primary charge and a so-called secondary charge, such as for example the gas generator described in application WOO1 / 89885. Thus, and advantageously, the primary charge is constituted by propellant, and the secondary charge is constituted by redox mixture such as ammonium nitrate / guanidine nitrate. The duration of gas generation is from 0.05 to 2.5 s, the gas volume is from a fraction of a mole to 4 moles, and the temperature of the gas in the generator is between 1500K and 600K. The durations and volumes are of course not limited to these quoted values alone.
    For example, for inflating a 60-liter inflatable structure intended for the protection of the driver (structure consisting of a single bag), the primary charge is a double base 1133 propellant, the chamber of evacuation is downstream from the other two rooms. The surface of the central hole of the grid or plate is distributed around the periphery.
    An example of load composition and generator characteristics is given in the tables below.
    Primary loading Double base 1133, mass 3g Secondary loading 11g NA + 4g NiGu mixture
    Primary room Bedroomsecondary 60 liter tank under nitrogenPmax MPA Pmax MPA Pmax MPA TFP ms Tps to Pmax ms +20 7.0 3.0 0.15300
    For inflating a 110-liter inflatable structure intended for protection, a generator is advantageously provided comprising characteristics and a composition of fillers indicated in the tables below.
    Primary loading Double base 1133 mass 8g Secondary loading Mixture 18 NA + 4g NiGu
    Primary room Secondary bedroom 60 liter tank under nitrogenPmoy MPA Pmoy MPA Pmax MPA TFP ms Tps to Pmax ms +20 5.0 2.6 0.4295
    Whether it is an inflatable structure of 60 or 110 liters, the material chosen is a material which expands little under the effect of pressure. It can be for example Nylon for example. The inflatable structure being waterproof, a vent is advantageously provided to regulate the deflation of the bag during deceleration of the occupant and thus absorb the kinetic energy of the occupant. This vent is either sealed to open only at a predetermined pressure or controlled by the automated system (passive safety improvement system).
    The 2 nylon bags can be replaced by inflatable PVC structures of the Zodiac® inflatable boat type. An example of load composition and 10 characteristics of the generator for inflating a 60-liter inflatable structure is given in the following tables.
    Primary loading Double base 1133 mass 6.45g Initiator DB Relay load 0.40g BNP. X nozzle-grid distance 30 mm Nozzle diameter 2.6mm Secondary loading Mixture 14 NA + 2.6 g NiGu
    Primary Ch. Secondary Ch. 60 liter tank under nitrogenPmoy MPA Pmoy MPA Pmax MPA TFP ms Tps to Pmax ms +20 5.5 2.4 0.33 NoSignificant 295
    [0076]
    The generation of gas over a period greater than 50 milliseconds can also be obtained via secondary charges alone. In this case, the chamber containing the primary charge is replaced by an energizing device as described in the application WO2010103231. This type of device is particularly advantageous when the secondary load is of low mass or when the generator is in an area of the vehicle 50 which is particularly thermally stressed. For example, the impulse power supply is based on the load under 250 Volt of a 50mF capacitor bank. It generates a current wave of a few ms with a peak value of 5000 Amps. A second capacitor bank allows a second pulse after a desired delay. Let us add that this device makes it possible to regulate the generation of gas over time.
    With such a generator, and for inflating a 60-liter inflatable structure intended for the protection of the driver (structure consisting of a single bag), the secondary charge consists of 18 g of Riegel. Impulse power is based on the 250 Volt load of a 50mF (milli Farad) capacitor bank. It generates a current wave of a few ms with a peak value of 5000 amps. A second capacitor bank allows a second pulse after a desired delay. The bag is either of the Nylon 4.4 type or of the PVC type as described above.
    The generation of gas over a period greater than 50 milliseconds can also be obtained via sealed bags 2 with primary charges alone, in particular for charges less than 3g.
    Gas generation can also be obtained completely or partially with compressed gases.
    Gas generators may also be provided for cylinders dedicated to seat belt pretensioners or for the activation of front / rear shock absorbers.
    An example of a generator for jacks intended to be used to activate the seat belt pretensioners or the front / rear shock absorbers is a two-chamber generator having the following characteristics.
    Primary loading Double base 1133 mass 0.20g Secondary loading Ammonium nitrate 0.30g Operating time 100-250ms
    The generator according to this example is presented as an initiator containing the grain of 1133 or of composite propellant and of a small hermetic casing outside this first component containing the NA in crushed or unmilled prills. Finally the two components are assembled in the cylinder head of the pretensioner.
    Another example of generator that can be implemented is a generator with a primary chamber having the following characteristics: 0.5 g of propellant 1133 or of propellant composite Butalite C 1559 [0084] Another example of generator that can be implemented work is a generator having only a secondary chamber in which the single secondary charge consists of 0.5g of Riegel. The latter is activated by an energizing device. In this case, pre-tensioning can be carried out in two stages for an efficiency time of 300 ms.
    The examples described above are presented in connection with a car. It is of course obvious that the protection system according to the invention is not limited to an implementation with cars. It can indeed be applied to any other vehicle. In particular, provision may be made to equip trucks, trams traveling on public roads with a pedestrian / bicycle protection system as described above. Likewise, motorcycles fitted with a driving assistance system can be provided which will define and set up a protection system adapted to the given situation. For this purpose, an inflatable structure will be provided either carried directly by the driver or provided at the level of the handlebars of the motorcycle. It is also possible to provide an enveloping inflatable structure of the shell type carried by the biker himself in the event of the latter being ejected during the impact.
    The invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to carry out different variant embodiments of the invention without going beyond the ambit of the invention.
    权利要求:
    Claims (17)
    [1" id="c-fr-0001]
    1. Protection system comprising at least one inflatable safety structure (1, 10) each associated with a gas generator activatable by an external control, characterized in that:
    a) said external control comprises an electrical signal coming from an automated system responsible for the critical safety functions of a vehicle (50), corresponding to information predicting an impact,
    b) the gas generator is configured to generate a gas over a period such that the total duration of inflation of the inflatable structure is greater than 50 milliseconds and
    c) the inflatable structure (1, 10) is waterproof.
    [2" id="c-fr-0002]
    2. Protection system according to claim 1 characterized in that the inflatable structure (1, 10) consists of at least one series of bags (2) taking a tubular shape in the deployed position, said bags (2) being assembled laterally and in fluid communication with each other.
    [3" id="c-fr-0003]
    3. Protection system according to claim 2, characterized in that the bags (2) are assembled according to a generator, the distance between said bags (2) being less than the diameter of said bags (2).
    [4" id="c-fr-0004]
    4. Protection system according to claim 2 or claim 3, characterized in that the inflatable structure (1, 10) further comprises a reinforcement bag (3) taking a tubular shape in the deployed position, extending transversely to the series of tubular bags at one end of said assembly.
    [5" id="c-fr-0005]
    5. Protection system according to any one of claims 2 to 4, characterized in that the inflatable structure (1, 10) comprises an additional protective bag taking a tubular shape in the deployed position and extending transversely to the series of tubular bags at the other end of said assembly.
    [6" id="c-fr-0006]
    6. Protection system according to the preceding claim, characterized in that the reinforcement bag (3) and / or the additional protection bag is (are) in fluid communication with at least one of the tubular bags of the series of bags .
    [7" id="c-fr-0007]
    7. Protection system according to any one of the preceding claims, characterized in that the inflatable structure (1, 10) and the gas generator are placed in a front part of the vehicle (50) and are arranged so that, in the event predicting a shock by the automated system, the inflatable structure (1, 10) deploys towards the front of the vehicle (50) and on at least the grille of the vehicle (50).
    [8" id="c-fr-0008]
    8. Protection system according to any one of claims 1 to 6, characterized in that the inflatable structure (1, 10) consists of two series of bags (2) taking a tubular shape in the form of a circular arc deployed position, the bags (2) of each series being assembled laterally and in fluid communication with each other, each series of bags (2) being integrated on either side of a vehicle seat (50) and comprising reciprocal attachment means (6).
    [9" id="c-fr-0009]
    9. Protection system according to any one of the preceding claims, characterized in that the inflatable structure (1, 10) is made of natural or synthetic rubber.
    [10" id="c-fr-0010]
    10. Protection system according to any one of the preceding claims, characterized in that it comprises at least one shock absorber implemented by a jack and placed between at least one of the vehicle bumpers (50) and a fixed part of the vehicle (50), the jack being controlled by the automated system.
    [11" id="c-fr-0011]
    11. Protection system according to any one of the preceding claims, characterized in that it comprises at least one seat belt pretensioner capable of being actuated by the automated system and activated for a duration greater than 50 milliseconds.
    [12" id="c-fr-0012]
    12. Protection system according to any one of the preceding claims, characterized in that the protection system comprises a system for locking straps in the upper part of the seats coupled to energy absorbers, the characteristics of which can be adjusted according to the morphology of the passenger installed in the seat and identified by the automated system.
    [13" id="c-fr-0013]
    13. Protection system according to any one of the preceding claims, characterized in that the automated system is configured to select one or more inflatable structures (1, 10), at least one of the shock absorbers and / or the at least one of the seat belt pretensioners according to the predictive information established.
    [14" id="c-fr-0014]
    14. Protection system according to any one of the preceding claims, characterized in that the gas generator comprises a first chamber containing solid propellant, and a second chamber containing a second composition consisting of a mixture of at least one oxidizing charge and at least one reducing charge, said solid propellant forming a block whose thickness and chemical characteristics are adjusted to ensure complete combustion in more than 50 milliseconds.
    [15" id="c-fr-0015]
    15. Protection system according to claim 1 to 13, characterized in that the gas generator comprises as sole propellant composition whose ballistic characteristics are adjusted to ensure complete combustion in more than 50 milliseconds.
    [16" id="c-fr-0016]
    16. Protection system according to claim 1 to 13, characterized in that the gas generator comprises a single composition consisting of a mixture of at least one oxidizing charge and at least one reducing charge, the decomposition of which is controlled by an energizing device configured to ensure complete generation of gases in more than 50 milliseconds.
    [17" id="c-fr-0017]
    17. Protection system according to any one of the preceding claims, characterized in that it comprises means for generating compressed gases which can be used alone or in addition to the gas generator.
    1/1
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3065929A1|2018-11-09|SYSTEM FOR PROTECTING PEOPLE AND PROPERTY COMPRISING A LONG-TERM ACTION INFLATABLE STRUCTURE
    US6199900B1|2001-03-13|Vehicle safety collision headrest system
    EP1172261B1|2003-10-01|Venting means for an inflatable element and vehicle protection device provided with same
    EP1527964A1|2005-05-04|Element with a tearable seam, allowing the deployment of an air bag, in particular for a car seat
    EP1276646B1|2005-06-15|Device for individual protection, comprising an airbag
    EP1304267B1|2010-11-03|Hybrid gas generator for airbag
    FR2921611A1|2009-04-03|INFLATABLE BAG SAFETY DEVICE FOR MOTOR VEHICLE
    WO2010000273A1|2010-01-07|Active and passive outer airbags
    FR2852900A1|2004-10-01|IMPACT PROTECTION DEVICE, OF THE INFLATABLE BAG TYPE, FOR A FRONT PANEL OF A MOTOR VEHICLE
    WO1998012076A1|1998-03-26|Mounting an air bag module particularly in a seat element of a motor vehicle
    EP1575809A1|2005-09-21|Shock-absorbing occupant protection
    EP1375264A1|2004-01-02|Part of a safety module comprising an inflatable restraint system, among others for vehicle seats, and manufacturing method
    FR3078515A1|2019-09-06|DEVICE FOR DISPLAYING DIGITAL RETROVISION IMAGES WITH AN INFLATABLE PROTECTION BAG FOR A VEHICLE.
    EP3853080A1|2021-07-28|Method and system for controlling the deployment of an external inflatable pedestrian safety structure equipping a vehicle, and pedestrian protection equipment integrating said system
    FR3086235A1|2020-03-27|Method and system for controlling the deployment of an external inflatable pedestrian safety structure fitted to a vehicle, and pedestrian protection equipment incorporating this system.
    EP3232418A1|2017-10-18|Educational vehicle for road-emergency services including an intentionally controlled inflatable bag device
    FR2993223A1|2014-01-17|Airbag safety device for car, has airbag including control unit to control access to opening according to airbag depression, where access is restricted when depression is large to vary stiffness of airbag depending on depression
    FR3093483A1|2020-09-11|Communication interface for an external pedestrian safety inflatable structure fitted to a vehicle, associated inflatable structure-vehicle communication protocol and safety module
    FR3023520A1|2016-01-15|FLEXIBLE SAFETY STRUCTURES FOR MOTORIZED INDUSTRIAL ENGINE
    FR3087173A1|2020-04-17|PROTECTIVE DEVICE FOR A PASSENGER OF A MOTOR VEHICLE, VEHICLE DOOR EQUIPPED WITH SUCH A DEVICE AND VEHICLE EQUIPPED WITH SUCH DOORS
    FR3017081A1|2015-08-07|DEVICE FOR SUPPORTING A HEAD AND / OR NECK, WITH A COVER AND EXTENSIBLE SHOCK, FOR A SEAT BACK
    FR2951678A1|2011-04-29|Automatic inflatable safety device for e.g. hub of motor vehicle, has wall presenting resistance greater than pressure exerted by gas propelled through one inflating unit and less than pressure exerted by gas propelled through another unit
    FR2892367A1|2007-04-27|Motor vehicle seat e.g. bucket seat, element, has inflatable cushion deployment system with detonator, and inflatable cushion with zone connecting cushion with gas generator and pockets, where system and cushion are situated in rigid shell
    FR3067673A1|2018-12-21|ARRANGEMENT OF A CURTAIN AIRBAG ON A VEHICLE BOX
    FR2744408A1|1997-08-08|Vehicle side collision protection
    同族专利:
    公开号 | 公开日
    EP3619079A1|2020-03-11|
    FR3065929B1|2021-01-08|
    CN110730736A|2020-01-24|
    US20200331424A1|2020-10-22|
    JP2020518516A|2020-06-25|
    KR20200004852A|2020-01-14|
    WO2018203020A1|2018-11-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080147278A1|1994-05-23|2008-06-19|Automotive Technologies International, Inc.|Knee Airbags Including Film|
    WO2001089885A1|2000-05-24|2001-11-29|Seva Technologies|Device for operating an element, in particular a safety element, for protecting goods and/or people|
    WO2003053751A1|2001-12-19|2003-07-03|Universal Propulsion Company, Inc.|Vehicle frontal airbag system|
    US20060175813A1|2005-02-10|2006-08-10|Takata-Petri Gmbh|Airbag for an occupant protection device|
    US20120139215A1|2010-12-03|2012-06-07|Takata-Petri Ag|Side gas bag arrangements for a vehicle occupant restraint system|
    US20120267183A1|2011-04-22|2012-10-25|Tk Holdings Inc.|External airbag|US11046280B2|2019-07-22|2021-06-29|Autoliv Asp, Inc.|Lateral occupant engagement cushions|US6116644A|1998-04-24|2000-09-12|Delphi Technologies, Inc.|Frontal air bag system|
    DE10062560A1|1999-12-20|2001-07-19|Rach Barbara|Vehicle pedestrian safety device comprises restrainer wall across vehicle folded out from below bumper as airbag or net for action and folding back down at rest.|
    DE10119351C1|2001-04-20|2002-07-25|Autoliv Dev|Occupant protection device, for protecting vehicle occupants in the event of a crash, comprises two rows of horizontal cylindrical gas bags|
    DE10233593A1|2002-07-19|2004-02-19|Takata-Petri Ag|Device on motor vehicles to protect pedestrians and cyclists consists of airbag on vehicle exterior, with low contact area for initial contact and inclined impact area to accommodate a person after initial impact|
    FR2943128A1|2009-03-11|2010-09-17|Seva Technologies|GAS GENERATOR COMPRISING A NON-PYROTECHNIC ENERGY DEVICE|
    EP2599669B1|2011-11-29|2015-07-22|Volvo Car Corporation|Pedestrian protection airbag|
    DE102013205283A1|2012-09-03|2014-05-28|Bayerische Motoren Werke Aktiengesellschaft|Safety device for a motor vehicle|
    US8985652B1|2013-09-25|2015-03-24|Google Inc.|System for pedestrian leg protection in vehicle impact|
    DE102016208828B4|2015-07-24|2019-12-12|Ford Global Technologies, Llc|Device and method for improving at least one accident-related safety-relevant wearing property of a seat belt applied by a person sitting in a vehicle seat|
    JP6631369B2|2016-04-04|2020-01-15|トヨタ自動車株式会社|Occupant protection device|US20190084521A1|2017-09-18|2019-03-21|Ford Global Technologies, Llc|Vehicle airbag assembly|
    DE102018114771B4|2018-06-20|2020-07-09|Isi Automotive Holding Gmbh|Restraint device for reducing an abrupt sideways and forward movement of an occupant|
    CN112918423B|2019-03-04|2022-02-25|长沙理工大学|A engine bonnet for intelligent automobile protects pedestrian|
    FR3093483A1|2019-03-05|2020-09-11|Seva Technologies|Communication interface for an external pedestrian safety inflatable structure fitted to a vehicle, associated inflatable structure-vehicle communication protocol and safety module|
    FR3095393B1|2019-04-23|2021-08-13|All Net Int|Interface for coupling a pedestrian safety module to a vehicle, universal connection port and mechanical coupling devices implemented in this interface|
    法律状态:
    2018-04-23| PLFP| Fee payment|Year of fee payment: 2 |
    2018-11-09| PLSC| Search report ready|Effective date: 20181109 |
    2019-04-19| PLFP| Fee payment|Year of fee payment: 3 |
    2020-04-22| PLFP| Fee payment|Year of fee payment: 4 |
    2021-04-21| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1754011A|FR3065929B1|2017-05-05|2017-05-05|PERSONAL AND PROPERTY PROTECTION SYSTEM INCLUDING A LONG-TERM INFLATABLE STRUCTURE|
    FR1754011|2017-05-05|FR1754011A| FR3065929B1|2017-05-05|2017-05-05|PERSONAL AND PROPERTY PROTECTION SYSTEM INCLUDING A LONG-TERM INFLATABLE STRUCTURE|
    US16/611,185| US20200331424A1|2017-05-05|2018-05-04|Protection system for persons and goods comprising an inflatable structure with long duration of action|
    PCT/FR2018/051138| WO2018203020A1|2017-05-05|2018-05-04|Protection system for persons and goods comprising an inflatable structure with long duration of action|
    CN201880037864.7A| CN110730736A|2017-05-05|2018-05-04|Protection system for persons and articles comprising an inflatable structure with a long duration of action|
    EP18727858.5A| EP3619079A1|2017-05-05|2018-05-04|Protection system for persons and goods comprising an inflatable structure with long duration of action|
    KR1020197035725A| KR20200004852A|2017-05-05|2018-05-04|Protection systems for people and products containing inflatable structures for long periods of action|
    JP2020512094A| JP2020518516A|2017-05-05|2018-05-04|Systems for protecting people and property, including long-acting inflatable structures|
    [返回顶部]