• 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:
    Security system for motor vehicles, motor vehicle comprising said system and operating method of said system, comprising at least one airbag (1, 2, 3, 4) for pedestrian protection and a sensor that detects a pedestrian and its relative speed, where the sensor is connected to a processor module that determines the braking capacity of the motor vehicle (5), deciding on the activation of the airbags (1, 2, 3, 4), so that prior to the impact at least an airbag (1, 2, 3, 4) is already deployed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2540923A1
    申请号:ES201430029
    申请日:2014-01-14
    公开日:2015-07-14
    发明作者:Justo GARCÍA SANZ-SALCEDO；Víctor FERNÁNDEZ RAPOSO
    申请人:Universidad de Extremadura；
    IPC主号:
    专利说明:

    Security system for motor vehicles, motor vehicle comprising said system and operating procedure of said system.
    TECHNICAL FIELD OF THE INVENTION
    The present invention has application in the automobile industry, and more specifically in the field of security systems for motor vehicles comprising airbags
    10 for pedestrians, allowing a predictive performance of the system, which ensures an effective deployment of the airbags prior to the contact between a pedestrian and the motor vehicle.
    BACKGROUND OF THE INVENTION
    At present, safety systems for motor vehicles comprising airbags for the protection of vehicle occupants in the event of an accident are known. For this, the airbags are in their respective housings in a folded position, so that in the event of an accident during the circulation of the automobile 20, usually accompanied by an impact against some element present in the roadway or some other vehicle or pedestrian that circulates through it, the almost instantaneous deployment of said airbags occurs, projecting into the interior of the passenger compartment with the
    in order to protect the occupants against impacts with the elements of the motor vehicle that define said passenger compartment, due to the deceleration that occurs in the accident.
    Likewise, safety systems for motor vehicles are also known which comprise airbags located externally in certain housings located in correspondence with the body of the motor vehicle itself, in order to
    30 protect pedestrians in the event of an accident between the vehicle and a pedestrian, that is, in cases of abuse. In these cases, the airbags are deployed at the moment of impact between the vehicle and the pedestrian, in order to minimize damage precisely to the pedestrian, as it is the most fragile of the entities involved. On a commercial level only the V40 model of the Valva brand incorporates a safety system with pedestrian airbags.
    However, these systems with pedestrian airbags have certain limitations that 5

    They reduce their effectiveness in certain types of situations. In fact, these systems are only effective in situations in which the pedestrian hitting occurs in a purely frontal way, so that the trampled pedestrian develops a wrapping path, which in English is known as wrap trajectorr. However, these systems are not effective nor do they protect the pedestrian in abuses in which a frontal projection occurs, this typology being known in English as torward projection, nor in abuses with typology back on the fin, known in English as tender vault .
    Also, as mentioned, the deployment of the airbags starts at the moment of impact, and although most of these situations usually allow time for the deployment of the airbag, since the speeds are usually low, there are situations in which that the speed is high or the road conditions reduce the braking capacity of the vehicle, so that even in frontal abuses these systems are not effective, since it does not allow time for the total deployment of the airbags before the impact occurs between the pedestrian and the vehicle, with the serious consequences that this entails.
    DESCRIPTION OF THE INVENTION
    A first aspect of the present invention relates to a security system for motor vehicles, which is constituted as a passive safety measure for its incorporation into commercial motor vehicles, allowing pedestrians to be protected in case of being hit, usually in urban centers.
    In line with what was stated in the previous section, there are five types of outrage depending on the trajectory described by the trampled pedestrian, as a result of the way in which the vehicle collides with it, the height of the center of mass of the hit, the speed and the time elapsed until the vehicle brakes completely. The present invention focuses on solving or reducing the damage caused by running over both the front and back projection typologies and the type of wrapping path.
    The system proposed by the invention comprises at least one pedestrian protection airbag susceptible to being hit by a motor vehicle. A pedestrian airbag is understood as an airbag that is deployed outwards from the body of the motor vehicle.

    According to the invention, the system comprises at least one sensor that can detect the presence of a pedestrian in the vicinity of the motor vehicle and its relative approach speed, relative speed being understood, usually that of the approach of the vehicle to the pedestrian.
    Said, at least one, sensor is operatively connected to a processor module, switchboard or central computer of the vehicle, which can analyze said relative approach speed between pedestrian and vehicle, and determine the braking capacity of the motor vehicle, considering among others the conditions Weather to determine the time needed to brake the vehicle. In this way, and depending on the indicated variables, the processor module decides according to said braking capacity on the activation of said at least one airbag, so that prior to the impact between the motor vehicle and a pedestrian, said, at least one, airbag is already deployed, that is, it is already operational.
    Thus, the security system of the invention is a system that is activated in a predictive manner before the moment of the collision, reducing the consequences of the outrage.
    The possibility is contemplated that the safety system comprises a front airbag located in the front part of the motor vehicle in order to avoid direct contact between a pedestrian and the front part of the motor vehicle in the event of being hit, where the processor module activates said airbag frontal so that it is already fully deployed before the moment of impact.
    Likewise, it is contemplated that the safety system comprises a drop airbag located in the front part of the motor vehicle, inferior to the front airbag, in order to avoid direct contact between a pedestrian and the road surface of the motor vehicle in case of running over, comprising Likewise, two holding airbags located in the front part of the motor vehicle, to prevent a pedestrian from being fired outside the area corresponding to the fall airbag in the event of an accident, where the processor module activates said drop and holding airbags so that Your swelling process has already started at the moment of impact.
    In accordance with the activation sequence defined above, the drop airbag is always already fully deployed on the roadway for when the run over is projected onto said roadway. When the deceleration or frontal projection drives the hit in the direction of travel, the holding airbags are already deployed to the back of the hit, all thanks to the management of the inflation time and the anticipated or predictive activation described above, what prevents, so
    5 both, the frontal projection of the run over.
    On the other hand, the possibility of the security system is also contemplated
    comprise a curtain airbag located on each side of the motor vehicle to allow
    avoid direct contact between a pedestrian and the side of the motor vehicle in case of
    10 hit him. According to a preferred embodiment of the invention, it is at the time of the first impact when the processor module decides or determines if any of the curtain airbags should be executed or deployed, always with the aim of preventing the turn on the fin by the hit by a car.
    As indicated above, a second aspect of the present invention relates to a motor vehicle comprising a safety system as described above.
    A third aspect of the present invention relates to an operating procedure of a security system such as the one described above, wherein the system comprises a front airbag, a drop airbag and two holding airbags.
    According to the invention, the method comprises:
    25 - detecting by means of said at least one sensor the presence of a pedestrian in the vicinity of the motor vehicle and its relative approach speed,
    - transmit said data to the processor module where said speed is analyzed and the braking capacity of the motor vehicle is determined, according to said function
    30 braking capacity on the activation of said airbags, so that prior to the impact between the motor vehicle and a pedestrian, the front airbag is already fully deployed and the drop and hold airbags have already started their inflation process.
    Therefore the system is activated predictively before the moment of the collision, of
    35 so that the airbags are already operational and / or deployed, depending on whether they are the subject and fall airbags, or the front, at the moment of impact, reducing the consequences of the accident. In order to obtain the necessary reaction time that allows certain airbags to be activated without any impact being necessary, the sensors are used and subsequent interpretation of the situation by the processor module, which is able to relate the approach speed to the braking capacity vehicle
    5 at the time of pedestrian detection.
    In this way, the drop airbag is always already deployed on the roadway for when the
    run over is projected towards her, so that when the deceleration of the impact
    projects the run over in the direction of travel, the holding airbags are already
    10 deployed to the back of the run over, preventing its frontal projection.
    It is also contemplated that the system comprises a curtain airbag located in each
    side of the motor vehicle, so that the procedure involves deciding on the part
    of the processor module, at the time of the impact on the activation of any of the
    15 curtain airbags to prevent the pedestrian from directly contacting the side of the motor vehicle, all with the purpose of preventing the return of the trapped pedestrian over the fin.
    DESCRIPTION OF THE DRAWINGS
    20 To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, a set of drawings is accompanied as an integral part of said description. where, for illustrative and non-limiting purposes, the
    25 following:
    Figure 1.- Shows a schematic plan view of a security system and a
    motor vehicle according to the invention, where the airbags have been represented
    deployed and the motor vehicle has been represented with dashed lines.
    Figure 2.- Shows an exploded schematic view of the safety system and of the motor vehicle represented in figure 1, where the airbags have been shown deployed and the motor vehicle has been represented with broken lines.
    35 PREFERRED EMBODIMENT OF THE INVENTION

    In view of the aforementioned figures it can be seen how in one of the possible embodiments of the invention the security system for motor vehicles (5) proposed by the invention comprises six airbags (1, 2, 3, 4) for pedestrian protection liable to deploy outwards with respect to the body of the motor vehicle (5).
    The system also comprises at least one sensor that can detect the presence of a pedestrian in the vicinity of the motor vehicle (5) and its relative approach speed. Said sensor is operatively connected to a processor module, which can analyze said relative approach speed between pedestrians and vehicles, and determine the braking capacity of the motor vehicle (5). The processor module decides on said braking capacity on the activation of the airbags (1, 2, 3, 4), so that prior to the impact between the motor vehicle (5) and a pedestrian, at least one of the airbags (3), preferably the front (3), is already deployed.
    As indicated, and it can be seen in the figures, the safety system comprises a front airbag (3) located on the front of the motor vehicle (5) to avoid direct contact between a pedestrian and the front of the vehicle car (5) in the event of being hit, where the processor module activates said front airbag (3) so that it is already fully deployed prior to the moment of impact.
    Likewise, the safety system comprises a drop airbag (4) located in the front part of the motor vehicle (5), inferior to the front airbag (3), in order to avoid direct contact between a pedestrian and the road surface of the motor vehicle (5) in case of running over, also comprising two holding airbags (2) located in the front part of the motor vehicle (5), to prevent a pedestrian from being fired outside the area corresponding to the drop airbag (4) in case of abuse, where the processor module activates said drop airbag (4) and support (2) so that its swelling process has already begun at the moment of impact. As can be seen in the figures, the volume of both the drop airbag (4) and each of the holding airbags (2) is greater than the volume of the front airbag (3).
    In accordance with the activation sequence defined above, the drop airbag (4) is always already fully deployed on the roadway for when the run over is projected onto said roadway. When the deceleration or frontal projection drives the hit in the direction of travel, the holding airbags (2) are already deployed to the back of the hit, all thanks to the management of the inflation time and the early or predictive activation previously exposed, which therefore prevents the frontal projection of the run over.
    The safety system also includes a curtain airbag (1) located in each
    5 side of the motor vehicle (5) to avoid direct contact between a pedestrian and theside part of the motor vehicle (5) in case of abuse. At the time of the firstimpact when the processor module decides or determines if any of the curtain airbags
    (1) must be executed or deployed, always with the aim of avoiding the return on the fin by the hit.
    A second aspect of the present invention relates to a motor vehicle comprising a safety system as described above.
    A third aspect of the present invention relates to an operating procedure of a
    15 safety system as described above, where the system comprises a front airbag (3), a drop airbag (4), two holding airbags (2) and two curtain airbags (1). The procedure includes:
    - detecting by means of said at least one sensor the presence of a pedestrian in the immediate vicinity of the motor vehicle (5) and its relative approach speed,
    - transmit said data to the processor module where said speed is analyzed and the braking capacity of the motor vehicle (5) is determined, said braking capacity based on the activation of said airbags (2, 3, 4), so that
    25 prior to the impact between the motor vehicle (5) and a pedestrian, the front airbag (3) is already fully deployed and the drop (4) and support airbags (2) have already started their inflation process.
    - decide by the processor module, at the time of the impact on the activation of
    30 one of the curtain airbags (1) to prevent the pedestrian from directly contacting the side of the motor vehicle (5), all with the purpose of preventing the return of the trapped pedestrian over the fin.
    The operations performed by the system are based on the constant analysis of the environment,
    35 initially executed by the sensor or radar. In the event that it detects an obstacle in less than 6 meters, it is contemplated to request information from a camera to determine if the obstacle is humanoid. In positive case, the approach speed to this obstacle is analyzed. This information is related to the braking capacity of the vehicle. If this data relationship determines that the collision is inevitable, the automatic braking, the front airbag (3) and both clamping airbags (2) are used first.
    5 Subsequently, the data of the impact sensors are collected to determine the trajectory that can be described after being hit by the impact. These conclusions determine the simple activation of the drop airbag (4), with possible complementation of other moon airbag systems, or also the activation of the curtain airbag (1) if necessary for said specific case.
    In view of this description and set of figures, the person skilled in the art will be able to understand that the embodiments of the invention that have been described can be combined in multiple ways within the scope of the invention. The invention has been described according to some preferred embodiments thereof, but it will be apparent to the person skilled in the art
    15 that multiple variations can be introduced in said preferred embodiments without exceeding the object of the claimed invention.
    权利要求:
    Claims (7)
    [1]
    1.-Security system for motor vehicles comprising at least one airbag (1,2,3,4) pedestrian protection, characterized in that the system comprises at least one5 sensor that can detect the presence of a pedestrian near the vehiclecar (5) and its relative approach speed, where said, at least one, sensoris operatively connected to a processor module that can analyze saidspeed and determine the braking capacity of the motor vehicle (5), deciding onsaid braking capacity function on the activation of said at least one airbag (1, 2,
    10 3, 4), so that prior to the impact between the motor vehicle (5) and a pedestrian, said, at least one, airbag (1, 2, 3, 4) is already deployed.
    [2]
    2. Security system according to claim 1, comprising a front airbag (3) located on the front of the motor vehicle (5) to allow direct contact to be avoided.
    15 between a pedestrian and the front of the motor vehicle (5) in the event of being hit, where the processor module activates said front airbag (3) so that it is already fully deployed prior to the moment of impact.
    [3]
    3. Security system according to claim 2, comprising a drop airbag (4)
    20 located on the front of the motor vehicle (5), inferior to the front airbag (3), to allow direct contact between a pedestrian and the road surface of the motor vehicle (5) to be avoided in case of running over, also comprising two airbags of clamping (2) located in the front part of the motor vehicle (5), to prevent a pedestrian from being fired outside the area corresponding to the drop airbag (4) in case of
    25 run over, where the processor module activates said drop airbags (4) and clamping (2) so that its swelling process has already begun at the moment of impact.
    [4]
    4. Security system according to any of the preceding claims, comprising a curtain airbag (1) located on each side of the motor vehicle (5) for
    30 allow to avoid direct contact between a pedestrian and the side of the motor vehicle (5) in case of running over.
    [5]
    5. Automobile vehicle comprising a security system according to any of the preceding claims.
    [6]
    6.-Operating procedure of a security system in accordance with any of the
    claims 1 to 4, wherein the system comprises a front airbag (3), an airbag of
    fall (4) and two clamping airbags (2), characterized in that the procedure comprises:
    - detect by means of said at least one sensor the presence of a pedestrian in the
    immediate vicinity of the motor vehicle (5) and its relative approach speed,
    5 -transmit said data to the processor module where said speed is analyzed and the braking capacity of the motor vehicle (5) is determined, according to said braking capacity based on the activation of said airbags (2, 3, 4), so that prior to the impact between the motor vehicle (5) and a pedestrian, the front airbag (3) is already fully deployed and the drop (4) and support airbags (2) have already started
    10 your swelling process.
    [7]
    7. Method according to claim 6, wherein the system comprises an airbag of
    curtain (1) located on each side of the motor vehicle (5), where the procedure
    includes deciding on the part of the processor module, at the moment of impact on the
    15 activation of one of the curtain airbags (1) to prevent the pedestrian from directly contacting the side of the motor vehicle (5).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080040004A1|1994-05-23|2008-02-14|Automotive Technologies International, Inc.|System and Method for Preventing Vehicular Accidents|
    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.|
    DE10213178A1|2001-07-07|2003-02-13|Rach Barbara|Pedestrian impact absorber for motor vehicle has airbag and catchment support to prevent pedestrian secondary impact|
    US20130151085A1|2011-12-07|2013-06-13|Audi Ag|Motor vehicle, and method of operating a motor vehicle|IT201900006230A1|2019-04-23|2020-10-23|Italdesign Giugiaro Spa|Safety system to prevent road users from being run over by a vehicle|
    法律状态:
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    优先权:
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    ES201430029A|ES2540923B1|2014-01-14|2014-01-14|Security system for motor vehicles, motor vehicle comprising said system and operating procedure of said system|ES201430029A| ES2540923B1|2014-01-14|2014-01-14|Security system for motor vehicles, motor vehicle comprising said system and operating procedure of said system|
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