Panoramic Window Safety System and Vehicle Thereby
The panoramic window safety system addresses the challenge of passenger ejection through panoramic windows by converting a side-bent wire arrangement into a straight one using inflators, ensuring effective airbag deployment and compliance with safety regulations.
Patent Information
- Application Number
- KR1020210113067
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-26
- Publication Date
- 2026-11-05
- Estimated Expiration
- 2041-08-26
AI Technical Summary
Panoramic windows in vehicles pose a challenge in meeting North American regulations for passenger ejection prevention, as they expose the upper body of occupants, and conventional passenger protection airbags like CABs and SABs are ineffective due to low trim height and insufficient restraint reaction force.
A panoramic window safety system comprising an inflator module, wire module, and airbag system that converts a side-bent wire arrangement into a straight arrangement using gas pressure from inflators, providing additional support to airbags to prevent passenger ejection during collisions.
Enhances passenger safety by enabling effective deployment of airbags, meets regulatory requirements, and reduces system structure strength and cost, making panoramic windows compliant with North American ejection prevention standards.
Smart Images

Figure 112021098749329-PAT00001_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a panoramic window, and more specifically to a vehicle equipped with a panoramic window safety system that prevents the risk of passenger ejection through the panoramic window space in which the passenger's upper body is exposed even during a collision. Background Technology
[0002] Recently, vehicles have been evolving into Purpose Built Vehicles (PBVs). In this context, the aforementioned PBV refers to autonomous ground mobility that transforms into various forms and functions depending on its utilization, use, and purpose.
[0003] For example, the above PBV applies a panoramic window, and the panoramic window forms the side of the vehicle as a window area where the upper body of the occupant is exposed to the glass surface.
[0004] Therefore, the above-mentioned panoramic window provides passengers with an enhanced sense of openness inside and an external view with increased visibility through the wide glass surface of the window. Prior art literature
[0005] Korean Patent Publication KR 10-2009-0030553 (March 25, 2009) The problem to be solved
[0006] However, the above-mentioned panoramic window makes it difficult to meet North American regulations on passenger ejection prevention when a passenger is not wearing a seatbelt, as the passenger's upper body is exposed through the glass surface. In this case, the above-mentioned North American regulations on passenger ejection prevention stipulate that in vehicles equipped with panoramic windows such as PBW, passengers must not be ejected from the window through the glass surface during a collision (especially a side collision).
[0007] In particular, the aforementioned panoramic window inevitably has a fundamental problem in that it cannot utilize passenger protection airbag devices, such as CABs and SABs (Side Airbags), to prevent passenger ejection.
[0008] This is because the window structures applied to conventional vehicles other than PBW (i.e., vehicles without the PBW concept) feature low window heights and high body and trim structures; in the event of a collision, the SAB is supported by the trim while the CAB supports the occupant's head area, thereby preventing passenger ejection. In contrast, the aforementioned panoramic window has a lower trim height compared to conventional vehicle window structures, which means the SAB cannot provide support and it is forced to provide insufficient passenger restraint reaction force. Consequently, passenger restraint is impossible with the CAB alone, which is subject to excessive passenger ejection loads.
[0009] Accordingly, the present invention, taking into account the above points, aims to provide a panoramic window safety system and a vehicle that can satisfy North American occupant ejection prevention regulations by preventing the risk of occupant ejection due to a collision with a window glass having a size that exposes the upper body of the passenger, and in particular, by preventing the risk of occupant ejection through the reaction force of the occupant ejection load induced by the CAB, thereby enabling passenger protection utilizing CAB and SAB even in a panoramic window. means of solving the problem
[0010] The panoramic window safety system of the present invention for achieving the above-mentioned purpose is characterized by comprising: a panoramic door in which a panoramic window space is formed; an inflator module having an inflator located below the panoramic window space; and a wire module having a wire positioned in a side-bent arrangement on one side of the panoramic window space and positioned vertically in the panoramic window space by converting the middle part of the side-bent arrangement into a straight arrangement by the gas pressure of the inflator.
[0011] As a preferred embodiment, the wire is made of steel wire or a wire made of a material that withstands high temperatures of 700°C or higher.
[0012] In a preferred embodiment, the inflator module comprises: a piston carriage that connects the inflator to a hollow structure of a piston movement space, wherein the piston fixed to the wire in the piston movement space moves by the gas pressure, and wherein the movement of the piston pulls the wire to convert the side bending arrangement into the middle straight arrangement; and a mounting bracket that secures the piston carriage to the panoramic door.
[0013] In a preferred embodiment, the piston carriage forms a pressure chamber in which the piston movement space of the piston carriage is partitioned at a forward position of the piston; and the inflator comprises a first inflator communicating with the pressure chamber at a forward position of the piston and a second inflator communicating with the piston movement space at a rear position of the piston.
[0014] In a preferred embodiment, the first inflator and the second inflator explode with a time difference to generate the gas pressure, respectively.
[0015] In a preferred embodiment, the pressure chamber is provided with a chamber partition that blocks gas backflow caused by the explosion of the first inflator, and the chamber partition is formed in a diagonal structure in the piston movement space of the piston carriage.
[0016] In a preferred embodiment, the piston carriage is provided with a wire guide through which the wire exits, and the wire guide communicates with an expansion chamber formed in front of a chamber partition partitioning the pressure chamber, and forms a path through which the wire exits after exiting the piston and passing through the chamber partition.
[0017] In a preferred embodiment, a wire hole is drilled in the piston to penetrate the wire.
[0018] In a preferred embodiment, the wire module is composed of a wire holder that supports the wire, and the wire holder forms the side bending arrangement in combination of a first wire holder, a second wire holder, a third wire holder, and a fourth wire holder.
[0019] In a preferred embodiment, each of the first wire holder and the fourth wire holder is fixed to the panoramic door by a bolting fastening structure, and each of the second wire holder and the third wire holder is fixed to the panoramic door by a fastener fitting structure.
[0020] In a preferred embodiment, the first wire holder and the fourth wire holder are arranged facing each other and positioned upward and downward at an intermediate position of the panoramic window space, and the second wire holder and the third wire holder are arranged facing each other and positioned upward and downward at an outer position of the panoramic window space.
[0021] In a preferred embodiment, the second wire holder and the third wire holder are broken by the movement of the wire due to the gas pressure while fixed to the fourth wire holder, and the first wire holder and the fourth wire holder maintain the wire in the intermediate straight arrangement.
[0022] In a preferred embodiment, the fixation of the fourth wire holder and the wire is achieved by a wire end, and the wire end is hooked onto the bolting body of the fourth wire holder in a loop structure.
[0023] In a preferred embodiment, the fourth wire holder is wrapped with a holder cover.
[0024] In a preferred embodiment, the inflator is connected to a controller, and the controller controls the inflator with a primary inflator signal aligned with the Time To Fire (TTF) of the airbag and a secondary inflator signal after the timing of the TTF.
[0025] In a preferred embodiment, the airbag is deployed into the panoramic window space, and the wire induces a passenger ejection load reaction force on the airbag in the intermediate straight arrangement between the airbag and the panoramic window space.
[0026] The vehicle of the present invention for achieving the above-mentioned purpose comprises: a panoramic door forming a panoramic window space to which a panoramic window is combined; an airbag deployed toward the panoramic window upon a vehicle collision; a panoramic window safety system in which a piston moves through a piston movement space of a piston carriage by the gas pressure of a first inflator and a second inflator located below the panoramic window space, and a wire forming a side bending arrangement in the panoramic window space is converted to a middle straight arrangement by the forward movement of the piston to support the airbag that is vertically erected in the panoramic window space and covers the panoramic window space; and a controller that monitors a collision signal from a collision sensor and controls the explosion of the first inflator and the second inflator with a timing difference upon confirmation of the collision signal.
[0027] In a preferred embodiment, the timing difference is based on the Time To Fire (TTF) of the airbag, and the first inflator applies the same timing as the TTF, while the second inflator applies a delayed timing after the timing of the TTF.
[0028] In a preferred embodiment, the airbag is a CAB (Curtain Airbag) or a SAB (Side Airbag). Effects of the invention
[0029] The panoramic window safety system applied to the vehicle of the present invention implements the following operations and effects.
[0030] First, as the panoramic window safety system enhances passenger safety, it becomes very easy to develop concepts incorporating panoramic windows in vehicles, particularly Purpose Built Vehicles (PBVs) and PBV-type autonomous vehicles. Second, in the event of a vehicle collision, especially a side collision, the CAB and SAB can be actively utilized for passenger protection, similar to the window structure of a standard vehicle (i.e., a vehicle without a PBW concept). Third, additional mounting points of the CAB are utilized to induce the passenger ejection load reaction force of the CAB, which prevents passenger ejection due to a collision, allowing for easy implementation using door or body panel areas. Fourth, since the passenger ejection load reaction force of the CAB is formed by a CAB wiring support structure, the passenger's ejection behavior outside the cabin is minimized, thereby significantly improving passenger safety on the panoramic window side of PBVs, especially PBV-type autonomous vehicles, in the event of a collision. Fifth, since the induction of the passenger ejection load reaction force is achieved through the operation of the CAB's two-stage inflator under the control of the ACU (Airbag Control Unit), the required strength of system structures such as piston carriages and wires is reduced compared to using a single high-charge inflator, thereby improving cost efficiency. Sixth, since the PBV equipped with panoramic windows satisfies North American regulations on passenger ejection prevention, it can enhance the vehicle's marketability for consumers in the North American market. Brief explanation of the drawing
[0031] FIG. 1 is a configuration diagram of a panoramic window safety system applied to a vehicle according to the present invention, FIG. 2 shows an assembled state of an inflator, a piston carriage, and a mounting bracket constituting an inflator module according to the present invention, FIG. 3 shows the structure of a piston constituting a piston carriage according to the present invention, FIG. 4 shows an example of the configuration of the first, second, third, and fourth wire holders constituting a wire holder among the wire modules according to the present invention, FIG. 5 shows a cross-sectional state of the fourth wire holder applied in the final stage among the wire holders according to the present invention, FIG. 6 shows a state in which a wire forms a wire withdrawal path among the wire modules according to the present invention, FIG. 7 shows a pre-operation state in which a wire is set and arranged as a wire installation path following the wire withdrawal path according to the present invention, FIG. 8 and FIG. 9 show a state in which the panoramic window safety system in a vehicle is operated by controller control upon a vehicle collision according to the present invention. Specific details for implementing the invention
[0032] Embodiments of the present invention will be described in detail below with reference to the attached illustrative drawings. Since these embodiments are merely examples and can be implemented in various different forms by those skilled in the art to which the present invention pertains, the embodiments described herein are not limited to the examples described herein.
[0033] Referring to FIG. 1, the vehicle (1) is equipped with a panoramic window safety system (1-1) on a panoramic window (10) formed on the side of the vehicle. In this case, the vehicle is a Purpose Built Vehicle (PBV), and in particular, a PBV-type autonomous vehicle.
[0034] In particular, the above-described panoramic window safety system (1-1) provides a passenger ejection load reaction force to the airbag (110) that is impacted by the passenger (200) (see FIG. 8) by operating a wire module (70) that forms tension along with the inflation of the airbag (110), thereby preventing the risk of passenger ejection in a side collision with the airbag (110) of the passenger (200) (see FIG. 8) in a state of broken window glass of the panoramic window (10), so as to satisfy North American regulations for passenger ejection prevention.
[0035] Specifically, the panoramic window safety system (1-1) is composed of a panoramic door (20), an inflator module (30), and a wire module (70), and is linked with the airbag system (100) so that it is deployed toward the panoramic window space (20-1) of the window frame (20) and is linked with the operation of the airbag (110) which protects the occupant (200) (see FIG. 8) from a side collision.
[0036] For example, the above panoramic door (20) is made of a door body consisting of an inner panel for mounting parts, with the inner and outer panels forming the door interior space using thin plates, and a panoramic window space (20-1) is formed in the upper section of the door body, thereby forming a panoramic window (10) by combining window glass.
[0037] Therefore, the above-mentioned panoramic door (20) is made of the same structure as a door applied to a general vehicle, but there is a difference in that the panoramic window space (20-1) is formed with a size that matches the size of the panoramic window (10) compared to the window of a general door.
[0038] For example, the above inflator module (30) is composed of an inflator (40), a piston carriage (50), and a mounting bracket (60).
[0039] In particular, the piston carriage (50) is provided horizontally across the width of the door body (e.g., inner panel or outer panel) of the panoramic door (20) in a horizontal arrangement (or horizontal arrangement) within the door interior space of the panoramic door (20), and the mounting bracket (60) is fixed to the door body by screw or welding to secure the piston carriage (50), and the inflator (40) is coupled to the piston carriage (50) to form gas pressure in the pressure chamber (53) (see FIG. 2) of the piston carriage (50).
[0040] To this end, the inflator (40) is composed of a pair of first inflators (40A) and second inflators (40B), and operates in the order that the first inflator (40A) explodes, followed by the second inflator (40B).
[0041] For example, the wire module (70) is composed of a wire (80) and a wire holder (90). In this case, the wire holder (90) is fixed to the door body of the panoramic door (20) and positioned along the periphery of the panoramic window space (20-1), and the wire (80) is positioned on one side of the door body along the periphery of the panoramic window space (20-1) of the panoramic door (20) while maintaining a constant tension by being stretched over the wire holder (90).
[0042] To this end, the wire (80) is made of a steel wire of a predetermined diameter having sufficient stiffness to withstand impacts applied by a passenger (200) (see FIG. 8) or a material capable of withstanding high temperatures of 700°C or higher, and the end portion is formed into a wire end (80A) (see FIG. 6 and FIG. 7) in a loop structure. In this case, the diameter of the steel wire is applied differently depending on the impact load to withstand impacts applied by a passenger (200) (see FIG. 8).
[0043] In addition, the wire holder (90) is made up of multiple units and arranged in a “C” shape (or side bend shape) at the periphery of the panoramic window space (20-1), so that the wire (80) can maintain constant tension in a “C” shape (or side bend shape).
[0044] For example, the airbag system (100) is composed of an airbag (110), a collision sensor (120), and a controller (130). In this case, the airbag (110) is a CAB (Curtain Airbag) or a SAB (Side Airbag).
[0045] In particular, the airbag (110) is embedded in the ceiling portion of the vehicle (1) or in the trim portion extending to the ceiling, and its deployment direction is directed downward to cover the panoramic window space (20-1) above the panoramic door (20). The controller (130) continuously monitors the collision signal of the collision sensor (120) that detects an external collision (e.g., a side collision) of the vehicle (1).
[0046] Therefore, the airbag (110), the collision sensor (120), and the controller (130) are components that constitute an airbag system applied to a typical vehicle.
[0047] To this end, the controller (130) can be applied as an ACU (Airbag Control Unit) that controls any one of the CAB (Curtain Airbag), SAB (Side Airbag), DAB (Driver Airbag), PAB (Passenger Airbag), and KAB (Knee Airbag).
[0048] However, the above controller (130) recognizes the collision signal of the collision sensor (120) and inflates the airbag (110) with the airbag signal (k), and simultaneously outputs the first inflator signal (a) for the first inflator (40A) among the inflators (40), followed by the output of the second inflator signal (b) for the second inflator (40B), and there is a difference in that the logic or program for this is stored in memory.
[0049] Meanwhile, FIGS. 2 and FIGS. 3 show the detailed configuration of the inflator module (30).
[0050] Referring to FIG. 2, the inflator module (30) is composed of an inflator (40) consisting of a pair of first and second inflators (40A, 40B), a piston carriage (50), and a mounting bracket (60) consisting of a pair of first, second, and third mounting brackets (60A, 60B, 60C).
[0051] For example, each of the first and second inflators (40A, 40B) is made of the same components. However, the first inflator (40A) is positioned to communicate with the pressure chamber (53) in the front section of the piston carriage (50) so that gas is sent to the pressure chamber (53) of the piston carriage (50) by an explosion caused by the first inflator signal (a), thereby increasing the internal space pressure of the pressure chamber.
[0052] In addition, the second inflator (40B) is positioned in the middle section of the piston carriage (50) to communicate with the piston movement space (51) of the piston carriage (50), thereby sending gas to the piston movement space (51) of the piston carriage (50) by an explosion caused by the second inflator signal (b), thereby increasing the pressure of the piston movement space.
[0053] Therefore, the first and second inflators (40A, 40B) are positioned in the front and middle sections of the piston carriage (50). In this case, the first mounting bracket (60A) of the mounting brackets (60) is positioned in the front section, and the second mounting bracket (60B) of the mounting brackets (60) is positioned in the middle section.
[0054] In this way, by using two first and second inflators (40A, 40B), the advantage of being able to reduce the required strength of system structures such as the piston carriage (50) and wire (80) compared to using one high-explosive inflator can be provided.
[0055] For example, the piston carriage (50) is formed as a hollow structure in which one end is closed and the other end is open to form a piston movement space (51). In particular, the piston carriage (50) is supported along its entire length by three first, second, and third mounting brackets (60A, 60B, 60C), thereby maintaining a stable fixed state when gas pressure generated from two first and second inflators (40A, 40B) is applied.
[0056] For example, among the first, second, and third mounting brackets (60A, 60B, 60C), the first mounting bracket (60A) is positioned close to the first inflator (40A) on the side of the pressure chamber (53) to fix the front section of the piston carriage (50), the second mounting bracket (60B) is positioned close to the first inflator (40B) to fix the middle section of the piston carriage (50), and the third mounting bracket (60C) is positioned on the side of the piston stopper (50A) (see FIG. 7) to fix the rear section of the piston carriage (50).
[0057] Furthermore, the above piston carriage (50) is equipped with a pressure chamber (53) and a wire guide (55) at one end of the sealed structure, and a piston (57) is housed in the piston movement space (51).
[0058] For example, the pressure chamber (53) forms the front section of the piston carriage (50) that is blocked by the end wall and the piston (57) in the sealed structure of the piston movement space (51), and acts as a pressure chamber to which the first inflator (40A) is connected and filled with the gas pressure of the first inflator (40A), thereby causing the piston (57) to move forward in the piston movement space (51) of the piston carriage (50).
[0059] To this end, the pressure chamber (53) is composed of an explosion chamber (53a) and an expansion chamber (53b) partitioned by a chamber partition (53c). In this case, the explosion chamber (53a) forms a closed space blocked by the chamber partition (53c) and the piston (57) and communicates with the gas outlet of the first inflator (40A), and the expansion chamber (53b) forms a closed space blocked by the chamber partition (53c) and the sealing wall of the piston carriage (50) and communicates with the wire guide (55). The chamber partition (53c) is formed with a diagonal structure integrated with the inner diameter of the piston movement space (51) of the piston carriage (50) to prevent the explosion gas of the explosion chamber (53a) from flowing back, thereby allowing the piston (57) to fully receive the gas pressure and move through the piston movement space (51) in a forward motion.
[0060] In particular, the expansion chamber (53b) forms a wire extraction path through which the wire (80) passes through the piston (57) and the chamber partition (53c) and exits through the wire guide (55), and the chamber partition (53c) forms a central hole through which the wire (80) passes.
[0061] For example, the wire guide (55) is made of a hollow tube and communicates with the expansion chamber (53b) to form an extraction path through which the wire (80) exits from the piston movement space (51) of the piston carriage (50).
[0062] In particular, the wire guide (55) is formed with a bent structure, and the bent structure is inclined toward the rear of the piston carriage (50) (i.e., the direction of the piston stopper (50A) in FIG. 7) so that the wire (80) is coupled with the wire holder (90) in the middle section of the piston carriage (50) (i.e., the position of the second mounting bracket (60B)).
[0063] For example, the piston (57) blocks the pressure chamber (53) in the piston movement space (51) of the piston carriage (50), thereby dividing the piston movement space (51) into a front section of the pressure chamber (53) and a rear section of the piston stopper (50A) (see FIG. 6 and FIG. 7).
[0064] Therefore, the piston (57) moves the piston movement space (51) of the piston carriage (50) from front to rear by inducing continuous piston forward movement by gas pressure generated sequentially from the two first and second inflators (40A, 40B). In this case, the front of the piston forward movement is toward the pressure chamber (53), and the rear is toward the piston stopper (50A) (see FIG. 7).
[0065] Referring to FIG. 3, the piston (57) is made of a cylindrical piston body (57a), and a wire clamp (80-1) is attached to the piston body (57a) using a piston groove (57b) formed on the front of the piston. A wire hole (57c) is drilled in the center of the piston groove (57b) to penetrate the piston body (57a), so that the wire (80) can be inserted into the wire hole (57c) from the piston groove (57b) side and penetrate the piston body (57a).
[0066] In particular, the diameter of the piston (57) may be applied to be slightly smaller than or equal to the inner diameter of the piston movement space (51) to minimize frictional resistance during the process of moving the piston movement space (51) of the piston carriage (50) by gas pressure. In this case, if the piston (57) and the piston movement space (51) have the same diameter, the frictional force can be reduced by the degree of machining on the outer surface of the piston (57) or the inner surface of the piston movement space (51).
[0067] On the other hand, Figures 4 and 5 show the detailed configuration of the wire holder (90).
[0068] Referring to FIG. 4, the wire holder (90) is composed of four first, second, third, and fourth wire holders (90A, 90B, 90C, 90D), and the first, second, third, and fourth wire holders (90A, 90B, 90C, 90D) are coupled to the door body of the panoramic door (20) and arranged in half sections of the panoramic window space (20-1) (i.e., the section where the first mounting bracket (60A) is located at the second mounting bracket (60B) that fixes the piston carriage (50).
[0069] For example, among the first, second, third, and fourth wire holders (90A, 90B, 90C, 90D), the first wire holder (90A) is connected to the door body at the position of the second mounting bracket (60B) at the bottom of the panoramic window space (20-1), the second wire holder (90B) is connected to the door body at one side (i.e., the left) of the panoramic window space (20-1) at the bottom of the panoramic window space (20-1), the third wire holder (90C) is connected to the door body at a position facing the second wire holder (90B) at the top of the panoramic window space (20-1), and the fourth wire holder (90D) is connected to the door body at a position facing the first wire holder (90A) at the top of the panoramic window space (20-1).
[0070] For example, each of the first wire holder (90A) and the fourth wire holder (90D) is identically formed as a bolting type structure and is joined to the door body of the panoramic door (20) by fastening with a bolt or screw (not shown).
[0071] To this end, each of the first wire holder (90A) and the fourth wire holder (90D) is formed of a bolting body (91) having an axle hole (93) drilled therein. In this case, the bolting body (91) is formed of a cylindrical body with an intermediate section having an I-shaped cross-section structure, and the axle hole (93) allows a screw or bolt to pass through which it is screwed to the door body of the panoramic door (20).
[0072] However, the above-mentioned fourth wire holder (90D) is combined with a holder cover (95) having a lid structure that surrounds the bolting body (91), and the holder cover (95) forms a wire slit (95b) into which a wire (80) is inserted by splitting vertically from the lid opening portion, which has a locking projection (95a), up to a predetermined height. In this case, the wire slits (95b) are formed at positions facing each other at 180°.
[0073] For example, each of the second wire holder (90B) and the third wire holder (90C) is made in the same way as a fastener-type structure and is inserted and connected into a door body hole (not shown) drilled in the door body of the panoramic door (20).
[0074] To this end, each of the second wire holder (90B) and the third wire holder (90C) is formed of a fastener-type body (92) having an axial hole (93) drilled therein. In this case, the fastener-type body (92) is formed of a conical body with an intermediate section having an I-shaped cross-sectional structure, and the axial hole (93) causes greater elastic deformation of the lower conical portion of the fastener-type body (92).
[0075] Referring to FIG. 5, the combined structure of the fourth wire holder (90D) and the holder cover (95) is exemplified by the holder cover (95) being fixed by being hooked onto the protrusion of the bolted body (91) with a circular catch (95a) at the entrance, thereby wrapping the fourth wire holder (90D) with a lid structure and fixing it.
[0076] Meanwhile, FIGS. 6 and 7 show a setting arrangement state in which the wire (80) uses the piston carriage (50) and the first, second, third, and fourth wire holders (90A, 90B, 90C, 90D). In this case, the wire (80) exits the piston carriage (50) via the wire extraction path and is supported by the first, second, third, and fourth wire holders (90A, 90B, 90C, 90D) via the wire installation path, thereby forming a state before operation.
[0077] Referring to FIG. 6, the wire withdrawal path of the wire (80) is formed as follows: piston movement space (51) of the piston carriage (50) -> wire clamp (80-1) -> piston (57) -> wire guide (55). In this case, “->” indicates the sequence of the process.
[0078] For example, the wire (80) enters the piston movement space (51) of the piston carriage (50), and while fixed in position by the wire clamp (80-1) located in the piston groove (57b) of the piston (57) in the piston movement space (51), it comes out through the wire hole (57c) into the pressure chamber (53), passes through the chamber partition (53c) of the pressure chamber (53) into the expansion chamber (53b), and is then pulled out through the wire guide (55) to exit the piston carriage (50).
[0079] In particular, the wire clamp (80-1) applies an axial wire clamp (80-1A) or a cylindrical wire clamp (80-1B) depending on the structure of the piston groove (57b) of the piston (57). In this case, the axial wire clamp (80-1A) and the cylindrical wire clamp (80-1B) are identical to the conventional clamp structure.
[0080] Referring to FIG. 7, the wire installation path of the wire (80) is formed as follows: first wire holder (90A) -> second wire holder (90B) -> third wire holder (90C) -> fourth wire holder (90D) -> holder cover (95). In this case, “->” indicates the order of the process.
[0081] For example, the wire (80) is pulled backward to an appropriate length from the wire guide (55) of the piston carriage (50) and is placed across the I-section structure of the bolting type body (91) from the outside of the first wire holder (90A), then the wire (80) is pulled forward and placed across the I-section structure of the fastener type body (92) from the inside of the second wire holder (90B), then the wire (80) is pulled upward and placed across the I-section structure of the fastener type body (92) from the inside of the third wire holder (90C), then the wire (80) is pulled backward and the loop structure of the wire end (80A) is placed on the I-section structure of the fourth wire holder (90D), and then the holder cover (95) is pressed while the wire slit (95b) of the holder cover (95) is inserted into the wire (80), thereby causing the holder cover (95) to be placed on the catch (95a) of the fourth wire holder (90D). The bolted body (91) is fixed to complete the process.
[0082] Finally, the open structure inlet portion of the piston carriage (50) is narrowed with a compression tool (50-1) to form a piston stopper (50A). In this case, the piston stopper (50A) is formed as a piston catch structure by slightly reducing the diameter of the piston movement space (51), so that when the first and second inflators (40A, 40B) explode, the piston (57) forms a frictional force against the piston carriage (50). In particular, the piston stopper (50A) is designed so that even if the piston (57) is damaged, the piston (57) can be fixed to the piston carriage (50) itself to form a reaction force.
[0083] In this way, the first wire holder (90A), the second wire holder (90B), the third wire holder (90C), and the fourth wire holder (90D) are arranged in a “C” shape (or side bend shape) on one side (i.e., left) of the rectangular shape of the panoramic window space (20-1), and the wire (80) that is stretched across them and maintains constant tension is also arranged in a “C” shape (or side bend shape).
[0084] Meanwhile, FIGS. 8 and 9 show the operating state in which the controller (130) controls the panoramic window safety system (1-1) in conjunction with the airbag system (100) in a collision situation of the vehicle (1).
[0085] Referring to FIG. 8, the controller (130) monitors the collision sensor (120) with logic or a program, and when the occurrence of a pulse from the collision sensor (120) is confirmed, it generates a first inflator signal (a) at the same timing as the CAB TTF (Time To Fire), which is an airbag signal (k) that deploys the airbag (110), and then generates a second inflator signal (b) about 2ms later.
[0086] Then, the first inflator (40A) explodes with a primary inflator signal (a) generated at the same timing as the CAB TTF (Time To fire), which is an airbag signal (k) that deploys the airbag (110) under the control of the controller (130), and the gas pressure of the first inflator (40A) increases the pressure inside the pressure chamber (53) of the piston stopper (50A).
[0087] Additionally, the second inflator (40B) explodes with a second inflator signal (b) generated about 2ms after the output of the first inflator signal (a), and the gas pressure of the second inflator (40B) increases the pressure within the piston movement space (51) of the piston stopper (50A).
[0088] In this way, the first and second inflators (40A, 40B) are controlled by sequential explosions in which the explosion of the first inflator (40A) occurs first by the first inflator signal (a) of the controller (130), and the explosion of the second inflator (40B) occurs later by the second inflator signal (b).
[0089] Therefore, the first and second inflators (40A, 40B) generate gas pressure sequentially with a time difference, thereby continuously inducing the forward movement of the piston (57) in the piston movement space (51) of the piston carriage (50).
[0090] Finally, the wire (80) is pulled by the piston (57) moved by the explosion of the first and second inflators (40A, 40B), thereby converting the “C” shaped arrangement (or side bending arrangement) into a state where the wire tension increases with strong force, and the increase in wire tension pulls the wire (80) from the inside out, so that the second and third wire holders (90B, 90C) positioned inside the wire (80) are damaged by the strong wire pulling force of the wire (80), while the first and fourth wire holders (90A, 90D) positioned outside the wire (80) are not damaged and remain in a fixed state.
[0091] Referring to FIG. 9, the wire (80) is in a state where the loop structure of the wire end (80A) is fixed to the fourth wire holder (90D), so the “C” shaped arrangement (or side bending arrangement) is converted to an “I” shaped arrangement (or middle straight arrangement), and the wire (80) forms a vertical line of the “I” shaped arrangement (or middle straight arrangement) in the panoramic window space (20-1) of the panoramic door (20) as in the “vehicle exterior state.”
[0092] As a result, the airbag (110) is inflated and receives an impact from a passenger (200) in a state similar to the “inside vehicle condition” while covering the panoramic window space (20-1) of the panoramic door (20), but the outer side of the airbag (110) is supported by a wire (80) in an “I” shape arrangement (or a straight arrangement in the middle), thereby preventing excessive passenger ejection load and enabling passenger restraint.
[0093] In this way, the panoramic window safety system (1-1) induces a passenger ejection load reaction force that prevents passenger ejection due to a collision by switching the wire (80) from a “C” shaped arrangement (or side bent arrangement) to an “I” shaped arrangement (or middle straight arrangement).
[0094] As described above, the panoramic window safety system (1-1) applied to the vehicle (1) according to the present embodiment enables the piston (57) to move within the piston movement space (51) of the piston carriage (50) by means of gas pressure from an inflator (40) located below the panoramic window space (20-1) formed in the panoramic door (20), and by the forward movement of the piston (57), the wire (80) forming a side bending arrangement in the panoramic window space (20-1) is converted into a middle straight arrangement to support an airbag (110) that is vertically erected in the panoramic window space (20-1) and covers the panoramic window space (20-1), thereby preventing the risk of passenger ejection in the event of damage to the panoramic window (10) which has a size that exposes the upper body of the passenger (200), thus enabling compliance with North American passenger ejection prevention regulations, and in particular, the prevention of the risk of passenger (200) ejection Passenger protection using CAB and SAB is possible even in a panoramic window by being implemented through the passenger ejection load reaction force caused by the CAB of the airbag (110). Explanation of the symbols
[0095] 1 : Vehicle 1-1 : Panoramic Window Safety System 10 : Panoramic Window 20 : Panoramic Door 20-1 : Panoramic window space 30 : Inflator module 40: Inflator 40A, 40B: 1st, 2nd Inflators 50: Piston carriage 50-1: Crimping tool 50A: Piston stopper 51: Piston travel space 53: Pressure chamber 53a: Explosion chamber 53b: Expansion chamber 53c: Chamber bulkhead 55 : Wire guide 57 : Piston 57a: Piston body 57b: Piston groove 57c : Wire hole 60 : Mounting bracket 60A, 60B, 60C: 1st, 2nd, and 3rd mounting brackets 70 : Wire Module 80 : Wire 80A: Wire end 80-1: Wire clamp 80-1A: Axial wire clamp 80-1B: Cylindrical wire clamp 90 : Wire holder 90A, 90B, 90C, 90D: 1st, 2nd, 3rd, 4th wire holders 91 : Bolting type body 92 : Fastener type body 93: Axis hole 95: Holder cover 95a: Stopper 95b: Wire slit 100: Airbag system 110: Airbag 120: Collision sensor 130 : Controller 200 : Passengers
Claims
Claim 1 A panoramic window safety system comprising: a panoramic door having a panoramic window space formed therein; an inflator module having an inflator located below the panoramic window space; and a wire module having a wire positioned in a side-bent arrangement on one side of the panoramic window space and positioned vertically in the panoramic window space by switching the middle part of the side-bent arrangement to a straight arrangement by the gas pressure of the inflator; wherein the inflator is connected to a controller, and the controller controls the inflator using a primary inflator signal aligned with the Time To Fire (TTF) of the airbag and a secondary inflator signal after the timing of the TTF. Claim 2 A panoramic window safety system according to claim 1, characterized in that the wire is a steel wire or a wire made of a material that withstands high temperatures of 700°C or higher. Claim 3 A panoramic window safety system according to claim 1, wherein the inflator module comprises: a piston carriage in which the inflator is connected to a hollow structure of a piston movement space, and the piston fixed to the wire in the piston movement space is moved by the gas pressure, and the movement of the piston pulls the wire to convert the side bending arrangement into the middle straight arrangement; and a mounting bracket that fixes the piston carriage to the panoramic door. Claim 4 A panoramic window safety system according to claim 3, wherein the piston carriage forms a pressure chamber in which the piston movement space of the piston carriage is partitioned at a front position of the piston; and the inflator comprises a first inflator communicating with the pressure chamber at a front position of the piston and a second inflator communicating with the piston movement space at a rear position of the piston. Claim 5 A panoramic window safety system according to claim 4, characterized in that the first inflator and the second inflator explode with a time difference to generate the gas pressure, respectively. Claim 6 A panoramic window safety system according to claim 4, wherein the pressure chamber is provided with a chamber partition that blocks gas backflow caused by the explosion of the first inflator. Claim 7 A panoramic window safety system according to claim 6, wherein the chamber partition is formed in a diagonal structure in the piston movement space of the piston carriage. Claim 8 A panoramic window safety system according to claim 4, wherein the piston carriage is provided with a wire guide through which the wire exits, and the wire guide communicates with an expansion chamber formed in front of a chamber partition partitioning the pressure chamber, and forms a path through which the wire exits after exiting the piston and passing through the chamber partition. Claim 9 A panoramic window safety system according to claim 3, characterized in that the piston has a wire hole drilled therein through which the wire penetrates. Claim 10 A panoramic window safety system according to claim 1, wherein the wire module is composed of a wire holder that supports the wire, and the wire holder forms the side bending arrangement in half sections of the panoramic window space by a combination of a first wire holder, a second wire holder, a third wire holder, and a fourth wire holder. Claim 11 A panoramic window safety system according to claim 10, wherein each of the first wire holder and the fourth wire holder is fixed to the panoramic door by a bolting fastening structure, and each of the second wire holder and the third wire holder is fixed to the panoramic door by a fastener fitting structure. Claim 12 A panoramic window safety system according to claim 10, characterized in that the first wire holder and the fourth wire holder are arranged facing each other and positioned upward and downward at an intermediate position of the panoramic window space, and the second wire holder and the third wire holder are arranged facing each other and positioned upward and downward at an outer position of the panoramic window space. Claim 13 A panoramic window safety system according to claim 12, wherein the second wire holder and the third wire holder are damaged by the movement of the wire due to the gas pressure while fixed to the fourth wire holder, and the first wire holder and the fourth wire holder maintain the wire in the straight arrangement of the intermediate section. Claim 14 A panoramic window safety system according to claim 13, wherein the fixation of the fourth wire holder and the wire is achieved by a wire end, and the wire end is hooked onto the bolting body of the fourth wire holder in a loop structure. Claim 15 A panoramic window safety system according to claim 14, wherein the fourth wire holder is wrapped in a holder cover. Claim 16 delete Claim 17 A panoramic window safety system according to claim 1, wherein the airbag deploys into the panoramic window space, and the wire induces a passenger ejection load reaction force on the airbag in a straight line arrangement in the middle between the airbag and the panoramic window space. Claim 18 A vehicle characterized by including: a panoramic door forming a panoramic window space to which a panoramic window is combined; an airbag that deploys toward the panoramic window upon a vehicle collision; a panoramic window safety system in which a piston moves through a piston movement space of a piston carriage by gas pressure from a first inflator and a second inflator located below the panoramic window space, and a wire forming a side bending arrangement in the panoramic window space is converted to a middle straight arrangement by the forward movement of the piston to support the airbag that is vertically erected in the panoramic window space and covers the panoramic window space; and a controller that monitors a collision signal from a collision sensor and controls the explosion of the first inflator and the second inflator with a timing difference upon confirmation of the collision signal. Claim 19 A vehicle according to claim 18, wherein the timing difference is based on the Time To Fire (TTF) of the airbag, the first inflator applies the same timing as the TTF, and the second inflator applies a delayed timing after the timing of the TTF. Claim 20 A vehicle according to claim 18, characterized in that the airbag is a CAB (Curtain Airbag) or a SAB (Side Airbag).
Citation Information
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