Safety protection device, control method thereof and vehicle

Abstract

The invention provides a safety protection device, a control method thereof and a vehicle. The safety protection device vehicle comprises a buffer air cushion which comprises an air cushion body arranged on a backrest of a first seat and is configured to be capable of expanding or contracting towards a rear space of the first seat; the safety air bag comprises a plurality of air bags arranged on the backrest of the first seat and is configured to have a contraction state and an expansion and expansion state; the control unit is used for controlling the buffer air cushion to expand and cover the backrest of the first seat under the condition that the child is carried on the second seat so as to prevent the child from colliding with the backrest of the first seat; and under the condition that the vehicle collides and the child breaks away from the second seat under the inertia effect, the multiple air bags are controlled to be expanded and unfolded, multiple protection cavities are formed when the multiple air bags are expanded and unfolded, and a first containing space is defined by the multiple protection cavities and the backrest of the first seat, so that the child is restrained in the first containing space. Wherein the second seat is located on the rear portion of the first seat.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and more specifically, to a safety protection device and a control method thereof, and a vehicle. Background Art

[0002] When the whole family is traveling together, if there is no child safety seat installed or the child is unwilling to sit in the safety seat, people usually hold the child in their arms or let the child sit alone in the back seat, or the child will play on the back seat floor. In the above scenarios, the personal safety of the child will be difficult to guarantee; when the vehicle is moving, the child playing in the back seat may also hit the backrest of the front seat due to the shaking of the vehicle body, causing certain injuries.

[0003] Therefore, it is urgent to provide a protective device to protect the safety of children and reduce injuries when the children are not sitting in a safety seat. Summary of the invention

[0004] The present application mainly provides a safety protection device and a control method thereof, and a vehicle. The following introduces various aspects involved in the embodiments of the present application.

[0005] In a first aspect, a safety protection device is provided, which is applied to a vehicle, and the safety protection device comprises: a buffer air cushion, comprising an air cushion body arranged on the backrest of a first seat, the air cushion body being configured to be able to expand or contract toward the rear space of the first seat; an airbag, comprising a plurality of airbags arranged on the backrest of the first seat, the plurality of airbags being configured to have a contracted state and an expanded and deployed state; a control unit, for controlling the buffer air cushion to expand and cover the backrest of the first seat to prevent the child from colliding with the backrest of the first seat when a child is carried on the second seat; and controlling the plurality of airbags to expand and deploy in case of a vehicle collision and the child leaves the second seat due to inertia, wherein the plurality of airbags are controlled to expand and deploy, a plurality of protection chambers are formed when the plurality of airbags are expanded and deployed, and the plurality of protection chambers are enclosed with the backrest of the first seat to form a first accommodation space to restrain the child in the first accommodation space; wherein the second seat is located at the rear of the first seat.

[0006] According to the above technical means, by arranging a safety protection device on the backrest of the first seat and utilizing a combination of a buffer air cushion and an airbag, the impact force between a child who is not sitting in a safety seat and the backrest of the front seat is reduced when the vehicle collides, and additional protection space is provided on the back of the front seat after the child flies out from the rear seat, so that the child is restrained in the accommodation space formed by the airbag, thereby reducing accidental injuries to the child.

[0007] In some embodiments, the cushioning air cushion also includes a first inflation unit, which is connected to the cushion body and the control unit; the control unit is also used to: control the first inflation unit to inflate the cushion body in response to a first control signal; or, in response to a vehicle collision and the child leaving the second seat due to inertia, control the first inflation unit to inflate the cushion body; wherein the first control signal is a control signal sent by the driver of the vehicle.

[0008] According to the above technical means, the buffer air cushion can be automatically inflated according to the driver's control or when the vehicle collides, thereby enhancing the flexibility and practicality of the buffer air cushion and improving the protective effect of the safety protection device.

[0009] In some embodiments, the airbag also includes a second inflation unit, which is connected to the control unit; the multiple airbags include: a first airbag arranged at the upper part of the backrest height direction of the first seat, which expands in a direction toward the second seat when inflated and expanded to form a first protection chamber; two second airbags symmetrically arranged on the left and right sides of the backrest width direction of the first seat, which expand independently from the left and right sides of the backrest of the first seat in a direction toward the second seat when inflated and expanded to form two second protection chambers; the first airbag and the two second airbags are independently connected to the second inflation unit respectively; the control unit is used to control the second inflation unit to inflate the multiple airbags.

[0010] According to the above technical means, the airbag is configured to include multiple airbags, which form multiple protection chambers when deployed to provide more comprehensive protection for children. At the same time, the second inflation unit independently controls the inflation of each airbag, thereby improving the reliability and adaptability of the safety protection device.

[0011] In some embodiments, the second airbag includes a first airbag and a second airbag, the first airbag and the second airbag are arranged in an L shape, the extension direction of the first airbag is consistent with the height direction of the vehicle, the extension direction of the second airbag is consistent with the width direction of the vehicle, and along the height direction, the second airbag is located below the first airbag; the control unit is also used to: when the vehicle collides and the child leaves the second seat due to inertia, control the second inflation unit to inflate the first airbag and the two first airbags; when the child collides with the backrest of the first seat, control the second inflation unit to inflate the two second airbags.

[0012] According to the above technical means, the second airbag is configured to have a first airbag and a second airbag, and the inflation sequence and method of the first airbag and the second airbag are controlled, so that the airbag can respond more accurately to the movement and collision of the child and provide more effective protection.

[0013] In some embodiments, the control unit is further used to control the inflation amount of the two second airbags by the second inflation unit according to the position of the child on the second seat.

[0014] According to the above technical means, the inflation amount of the airbags on both sides is adjusted according to the child's sitting position, so that the wrapping area formed between the airbags can more accurately adapt to the child's position and posture, thereby improving the effectiveness of the safety protection device.

[0015] In a second aspect, a control method for a safety protection device is provided, which is applied to a vehicle, and the safety protection device comprises: a buffer air cushion, comprising an air cushion body arranged on the backrest of a first seat, the air cushion body being configured to be able to expand or contract toward the rear space of the first seat; an airbag, comprising a plurality of airbags arranged on the backrest of the first seat, the plurality of airbags being configured to have a contracted state and an inflated and deployed state; the method comprises: when a child is carried on the second seat, controlling the buffer air cushion to expand and cover the backrest of the first seat to prevent the child from colliding with the backrest of the first seat; and, when the vehicle collides and the child leaves the second seat due to inertia, controlling the plurality of airbags to expand and deploy, a plurality of protection chambers are formed when the plurality of airbags are inflated and deployed, the plurality of protection chambers and the backrest of the first seat together form a first accommodation space to restrain the child in the first accommodation space; wherein the second seat is located at the rear of the first seat.

[0016] In some embodiments, the cushioning air cushion also includes a first inflation unit, which is connected to the cushion body and the control unit; the method also includes: in response to a first control signal, controlling the first inflation unit to inflate the cushion body; or, in response to a vehicle collision and the child leaving the second seat due to inertia, controlling the first inflation unit to inflate the cushion body; wherein the first control signal is a control signal sent by the driver of the vehicle.

[0017] In some embodiments, the airbag further comprises a second inflatable unit; the plurality of airbags comprises: a first airbag arranged at the upper part of the backrest height direction of the first seat, the first airbag is expanded and expanded in the direction toward the second seat to form a first protection chamber; two second airbags are symmetrically arranged on the left and right sides of the backrest width direction of the first seat, the two second airbags are independently expanded from the left and right sides of the backrest of the first seat in the direction toward the second seat to form two second protection chambers when expanded and expanded; the first airbag and the two second airbags are independently connected to the second inflatable unit; the second airbag comprises a first airbag and a second airbag, the first airbag and the second airbag are arranged in an L shape, the extension direction of the first airbag is consistent with the height direction of the vehicle, the extension direction of the second airbag is consistent with the width direction of the vehicle, and the second airbag is located below the first airbag in the height direction; the method further comprises: in the case that the vehicle collides and the child leaves the second seat under the action of inertia, controlling the second inflatable unit to inflate the first airbag and the two first airbags; in the case that the child collides with the backrest of the first seat, controlling the second inflatable unit to inflate the two second airbags.

[0018] In some embodiments, the method further includes: controlling the inflation amount of the two second airbags by the second inflation unit according to the position of the child on the second seat.

[0019] According to a third aspect, a vehicle is provided, comprising: the safety protection device according to the first aspect, a first seat and a second seat, wherein the safety protection device is arranged on a side of the first seat facing the second seat; wherein the second seat is located behind the first seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the safety protection device provided in the embodiment of the present application;

[0021] Figure 2 A schematic diagram of an application scenario of the safety protection device provided in an embodiment of the present application;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the cushioning air cushion in a contracted state;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the cushioning air cushion in the expanded and unfolded state;

[0024] Figure 5 is a schematic diagram of the structure when the second air bag is in an inflated and deployed state;

[0025] Figure 6 is a schematic diagram of the structure when the second air bag is in a contracted state;

[0026] Figure 7 for Figure 1 A schematic diagram of the structure when the safety protection devices are all in the retracted configuration;

[0027] Figure 8 A schematic flow chart of a method for controlling a safety protection device provided in an embodiment of the present application;

[0028] Fig. 9 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The embodiments of the present application provide a safety protection device and a control method thereof, and a vehicle. The technical solution of the present application is further specifically described below through the embodiments and in combination with the accompanying drawings. In the specification, the same or similar figure numbers indicate the same or similar parts. The following description of the implementation mode of the present application with reference to the accompanying drawings is intended to explain the overall concept of the present application and should not be construed as a limitation on the present application.

[0030] Before introducing the technical solution provided in the embodiments of the present application, the child safety protection device of a vehicle in the related art and the problems existing therein are first described in detail.

[0031] When a family travels together, children (especially infants) will be arranged to sit in the safety seats in the back row of the vehicle, which can provide safety for children while riding in the vehicle and prevent them from being thrown out and injured due to inertia in the event of a collision or other accidents. However, when the vehicle is not equipped with a child safety seat or the child is unwilling to sit in the safety seat, people generally hold the child in their arms or let the child sit alone in the back seat, or the child will play on the floor of the back seat. It is difficult to ensure the safety of children in the above situations, especially in environments such as highways. Once the vehicle has an accident, it may cause fatal injuries; and even if no accident occurs, during driving, children playing in the back seat may hit the backrest of the front seat due to the instability of the vehicle body, causing certain injuries.

[0032] In some related technologies, knee airbags and side airbags are installed in the rear seats of vehicles. When a collision occurs, these airbags expand and deploy to provide protection for the rear passengers. However, such safety protection devices are usually designed based on the body shape and sitting posture of adults. When the rear passengers of the vehicle are children, these protection devices may not provide proper safety protection for the children; in some possible situations, the popped-out airbags may even cause secondary injuries to the children.

[0033] Therefore, it is urgent to provide a protective device to protect the safety of children and reduce injuries when the children are not sitting in a safety seat.

[0034] In view of the above problems, the embodiment of the present application provides a safety protection device and a control method thereof, and a vehicle. The technical solution of the embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0035] Figure 1 and Figure 2 : is a schematic structural diagram of a safety protection device provided in an embodiment of the present application. The safety protection device is applied to a vehicle. Therefore, for ease of understanding, Figure 2 Part of the vehicle structure is also shown.

[0036] Figure 1 and Figure 2 The safety protection device 100 includes: a buffer air cushion 110, an airbag 120 and a control unit 130.

[0037] The buffer air cushion 110 includes an air cushion body 111 disposed on the backrest 210 of the first seat 200 , and the air cushion body 111 is configured to be able to expand or contract toward the rear space of the first seat 200 .

[0038] It is understood that in the embodiment of the present application, the vehicle includes at least two rows of seats. For example, the vehicle may include two rows of seats, and the first seat 200 is any one of the front seats of the vehicle; or, the vehicle may also have more than two rows of seats, for example, the vehicle may include three rows of seats, and the first seat 200 may be a front seat or a middle seat; in other words, when the vehicle has multiple rows of seats, the first seat 200 may be any seat except the seats in the last row.

[0039] It is also understandable that the vehicle may be any type of vehicle, for example, the vehicle may be a passenger car or a commercial vehicle, wherein a passenger car may include a sedan, a multi-purpose vehicle, a sports utility vehicle, etc., and a commercial vehicle may be, for example, a bus, including a travel bus, a city bus, a highway bus, and a school bus, etc. The embodiments of the present application do not limit the specific type of the vehicle.

[0040] The airbag 120 includes a plurality of airbags 121 disposed on the backrest 210 of the first seat 200 , and the plurality of airbags 121 are configured to have a contracted state and an inflated and deployed state.

[0041] The control unit 130 is used to control the buffer air cushion 110 to expand and cover the backrest 210 of the first seat 200 when a child is carried on the second seat, so as to prevent the child from colliding with the backrest 210 of the first seat 200 .

[0042] The second seat is located behind the first seat 200 and is adjacent to the first seat 200 .

[0043] The control unit 130 in the embodiment of the present application may be a controller specially provided for the safety protection device, or may be an existing controller in the vehicle, and the embodiment does not specifically limit this.

[0044] Figure 3 and Figure 4 Schematic diagrams showing the cushioning air cushion 110 in a contracted state and an expanded state, respectively. Figure 3 and Figure 4 As shown, when the cushioning air cushion 110 is in a contracted state, the outer surface of the cushioning air cushion 110 is attached to the backrest 210 of the first seat 200; when it is in an expanded state, the side of the cushioning air cushion 110 away from the first seat 200 extends in a direction away from the first seat 200, making the backrest 210 of the first seat 200 soft. When children are playing in the back row, if the vehicle body shakes, the expanded cushioning air cushion 110 will provide safety protection for the children, preventing the children's body (especially the head) from directly contacting the hard backrest 210 of the first seat 200, thereby improving safety.

[0045] The control unit 130 is also used to control the expansion and deployment of the multiple airbags 121 when the vehicle collides and the child leaves the second seat due to inertia. When the multiple airbags 121 expand and deploy, multiple protection chambers are formed. The multiple protection chambers and the backrest 210 of the first seat 200 together form a first accommodation space to restrain the child in the first accommodation space.

[0046] It is understandable that when a child is sitting in the back seat of the vehicle or is held by other passengers, if the vehicle encounters a head-on collision, the vehicle will suddenly slow down or stop, and the passengers in the vehicle will still tend to move forward under the action of inertia. For adult passengers, they can be restrained by the seat belt to avoid collision with the front seat, ensuring their life safety. However, for children sitting alone in the back seat or being held, due to the lack of the restraint of the seat belt, they will slide forward under the huge inertia and collide with the backrest 210 of the front seat.

[0047] like Figure 2 As shown, in the technical solution of the present application, the multiple airbags 121 located on the backrest 210 of the first seat 200 are inflated to form a U-shaped first accommodation space as shown in the figure, and the child who slides out from the second seat is restrained in the first accommodation space after contacting the backrest 210 of the first seat 200. At the same time, as mentioned above, when a child is sitting on the second seat, the cushioning air cushion 110 of the backrest 210 of the first seat 200 is in an expanded state, and the cushioning air cushion 110 and the multiple airbags 121 can work together to provide all-round protection for the child. In this case, even if a secondary accident occurs, it can ensure that the child will not suffer further harm.

[0048] According to the above technical means, by arranging a safety protection device on the backrest 210 of the first seat 200 and utilizing the combination of the buffer air cushion 110 and the airbag 120, the impact force between a child who is not sitting in a safety seat and the front seat backrest 210 is reduced when the vehicle collides, and additional protection space is provided on the back of the front seat after the child flies out from the rear seat, so that the child is restrained in the accommodation space formed by the airbag 120, thereby reducing accidental injuries to the child.

[0049] In some embodiments, the aforementioned buffer air cushion 110 further includes a first inflation unit 112 , which is connected to the air cushion body 111 and the control unit 130 .

[0050] The first inflation unit 112 may be, for example, an electric air pump or a gas generator, which is connected to the buffer air cushion 110 via an inflation pipeline and is electrically connected to the control unit 130 to be controlled by the control unit 130 .

[0051] The control unit 130 is used to control the first inflation unit 112 to inflate the air cushion body 111 in response to the first control signal.

[0052] Among them, the first control signal is a control signal sent by the driver of the vehicle. That is to say, whether to inflate the air cushion body 111 can be controlled by the driver of the vehicle, for example. When there are children sitting in the back seat of the vehicle, the driver can send the above-mentioned first control signal to the control unit 130 through interaction with the vehicle; the interaction between the driver and the vehicle can be, for example, the driver clicking on the central control screen of the vehicle, or the driver can interact with the vehicle by voice. The central control system of the vehicle can generate a first control signal according to the driver's operation, and send the first control signal to the first inflation unit 112, so that the first inflation unit 112 inflates the air cushion body 111. It can also be understood that in the interaction with the vehicle, the driver of the vehicle can also control the inflation speed and inflation degree of the air cushion body 111.

[0053] As a possible implementation, the first control signal may also be sent by other functional components in the vehicle. For example, an image recognition device may be provided in the vehicle, which is used to collect an image including the second seat through a camera, and determine whether a child is sitting on the second seat based on image recognition technology. When it is determined that a child is sitting in the back row of the vehicle, a first control signal is generated and sent to the control unit 130, so as to inflate the air cushion body 111.

[0054] The control unit 130 is further configured to: in response to a collision of the vehicle and the child leaving the second seat due to inertia, control the first inflation unit 112 to inflate the air cushion body 111 .

[0055] It should be understood that the above operation of the control unit 130 is applied to the case where a child is sitting on the second seat and the air cushion body 111 is in a contracted state. According to the above description, when a vehicle collides, the child sitting on the second seat will move in the direction of travel of the vehicle under the action of inertia. When the vehicle speed is fast and the collision force is large, the child in the back seat will hit the back of the front seat at a faster speed. If appropriate safety measures are not taken, the life of the child may be endangered.

[0056] In the solution provided in the embodiment of the present application, when the vehicle collides and the child on the second seat is detached from the seat, the first inflation unit 112 is controlled to inflate the air cushion body 111, thereby forming a buffer layer on the backrest 210 of the first seat 200, thereby avoiding direct contact with the hard seat back 210 and reducing damage caused by the impact.

[0057] It can also be understood that the control process in this technical solution includes determining whether the vehicle has collided and whether the child has left the second seat.

[0058] First, the judgment of whether the vehicle has collided can be based on various sensors deployed in the vehicle, such as a collision sensor installed in the vehicle, which can send a collision signal to the control unit 130 in the vehicle when the vehicle has a head-on collision; or, the acceleration sensor in the vehicle can be used. At the moment of the vehicle collision, the vehicle will be subjected to an acceleration opposite to its direction of movement. By measuring the acceleration of the vehicle, the state of the vehicle can be determined; or, the radar or camera installed in the vehicle can be used to determine the running state of the vehicle. For example, a laser radar or a millimeter-wave radar can be used to determine the running state of the vehicle, or the state of the vehicle can be determined based on images collected by various cameras on the vehicle body. It should be understood that the above description is only an example, and the embodiment of the present application does not limit the above method of determining whether the vehicle has collided.

[0059] Secondly, there are many ways to determine whether the child has left the second seat. For example, a gravity sensor can be set on the second seat. When the child sits in the second seat and leaves the second seat, the values ​​collected by the gravity sensor will be significantly different. Therefore, it is possible to determine whether the child has left the second seat based on the database collected by the gravity sensor. For another example, the aforementioned image recognition device can be used to collect the image of the second seat through a camera, and determine whether the child has left the second seat based on image recognition technology.

[0060] According to the above technical means, the buffer air cushion 110 can be automatically inflated according to the driver's control or when the vehicle collides, thereby enhancing the flexibility and practicality of the buffer air cushion 110 and improving the protective effect of the safety protection device.

[0061] In some embodiments, the control unit 130 is further configured to: control the air cushion body 111 to deflate in response to a second control signal.

[0062] Similar to the aforementioned first control signal, the second control signal may also be sent by the driver of the vehicle. For example, when a child in the rear seat of the vehicle gets off or sits in a safety seat correctly, a second control signal may be sent based on the driver's operation to control the deflation of the air cushion body 111. Alternatively, the second control signal may also be a control signal generated by the image recognition device mentioned above. For example, when there is no child in the captured image of the second seat, a second control signal may be generated and sent to the control unit 130 to restore the air cushion body 111 to its initial state. At this time, the space between the second seat and the backrest 210 of the first seat 200 can be increased.

[0063] In some embodiments, Figure 1 As shown, the airbag 120 further includes a second inflation unit 122 , which is connected to the plurality of airbags 121 and the control unit 130 .

[0064] The second inflation unit 122 may be, for example, an electric air pump or a gas generator, which is connected to the plurality of airbags 121 via an inflation pipeline and is electrically connected to the control unit 130 to be controlled by the control unit 130 .

[0065] like Figure 5 As shown, the plurality of airbags 121 include a first airbag 1211 and two second airbags 1212. The first airbag 1211 is arranged at the upper part of the backrest 210 of the first seat 200. When the first airbag 1211 is inflated and deployed, it is deployed in the direction toward the second seat to form a first protection chamber. The two second airbags 1212 are symmetrically arranged on the left and right sides of the backrest 210 of the first seat 200. When the two airbags are inflated and deployed, they are independently deployed from the left and right sides of the backrest 210 of the first seat 200 in the direction toward the two seats to form two second protection chambers.

[0066] The first airbag 1211 and the two second airbags 1212 are independently connected to the second inflation unit 122, and the control unit 130 is used to control the second inflation unit 122 to inflate the multiple airbags 121, including controlling the order in which the second inflation unit 122 inflates the multiple airbags 121 and the inflation amount of each airbag.

[0067] According to the above technical means, the airbag 120 is configured to include multiple airbags 121, which form multiple protection chambers when deployed to provide more comprehensive protection for children. At the same time, the second inflation unit 122 independently controls the inflation of each airbag, thereby improving the reliability and adaptability of the safety protection device.

[0068] In some embodiments, Figure 5 As shown, the second airbag 1212 includes a first airbag 1212A and a second airbag 1212B, and the first airbag 1212A and the second airbag 1212B are arranged in an L shape. The extension direction of the first airbag 1212A is consistent with the height direction of the vehicle, and the extension direction of the second airbag 1212B is consistent with the width direction of the vehicle. In addition, along the height direction, the second airbag 1212B is located below the first airbag 1212A.

[0069] The control unit 130 is further configured to control the second inflation unit 122 to inflate the first airbag 1211 and the two first airbags 1212A when the vehicle collides and the child leaves the second seat due to inertia.

[0070] When the child collides with the backrest 210 of the first seat 200 , the second inflation unit 122 is controlled to inflate the two second air bags 1212B.

[0071] Figure 5 and Figure 6 Two states of the second airbag 1212 are shown respectively. Figure 5 The second air bag 1212B in the air bag is in an expanded and deployed state. Figure 6 The two second air bags 1212B are in a contracted state.

[0072] See first Figure 6 When the vehicle collides, the child on the second seat will first slide out of the seat and move along the direction of travel of the vehicle. At this time, the first airbag 1211 and the two first airbags 1212A will pop out, and the child flying out from the back row will enter the space formed by the first airbag 1211 and the two first airbags 1212A; after that, in order to prevent the child from falling out of the airbag, the two second airbags 1212B can be controlled to inflate after the child collides with the backrest 210 of the first seat 200, such as Figure 5 As shown, the two second air bags 1212B form a barrier under the child after being inflated, providing all-round protection and preventing the child from falling to the floor of the vehicle and causing secondary injuries.

[0073] According to the above technical means, the second airbag 1212 is configured to have a first airbag 1212A and a second airbag 1212B, and the inflation sequence and method of the first airbag 1212A and the second airbag 1212B are controlled, so that the airbag 120 can respond more accurately to the movement and collision of the child and provide more effective protection.

[0074] Figure 7 FIG. 1 is a schematic diagram showing the structure of the aforementioned plurality of airbags 121 when they are all in a contracted state. Figure 7 As shown, when in the contracted state, the aforementioned multiple airbags 121 are all located inside the first seat 200 and inside the covering material of the first seat 200; when the vehicle collides, the multiple airbags 121 are rapidly inflated by the action of the inflation unit, and break through the covering material of the first seat 200 and pop out of the backrest 210 under the action of the internal pressure.

[0075] In some embodiments, the control unit 130 is further configured to control the inflation amount and / or inflation sequence of the two second airbags 1212 by the second inflation unit 122 according to the sitting position of the child on the second seat.

[0076] It is understandable that when a child sits in the rear seat of a vehicle, his position along the width direction of the vehicle is usually not fixed. If the child's sitting position is biased to one side, it will not be guaranteed that the impact position of the child on the backrest 210 of the first seat 200 is in the middle of the two airbags when the vehicle collides. In some extreme cases, the aforementioned multiple airbags 121 may not be able to wrap the child who flies out.

[0077] Therefore, in the embodiment of the present application, the inflation amounts of the two second airbags 1212 can be adjusted according to the sitting position of the child.

[0078] For example, when the sitting position is located on the left side of the second seat, when the vehicle collides, the inflation amount of the right airbag can be controlled to be greater than that of the left airbag.

[0079] According to the above technical means, the inflation amount of the airbags on both sides is adjusted according to the child's sitting position, so that the wrapping area formed between the airbags can more accurately adapt to the child's position and posture, thereby improving the effectiveness of the safety protection device.

[0080] Combination of the above Figure 1-Figure 7 , describes in detail the device embodiment of the present application. Figure 8 , the method embodiment of the present application is described in detail, and it should be understood that the description of the method embodiment corresponds to the device embodiment. Therefore, the part not described in detail can refer to the device embodiment above.

[0081] Figure 8It is a schematic flow chart of a control method for a safety protection device provided in an embodiment of the present application. The safety protection device is applied to a vehicle and may be the safety protection device described in any of the foregoing embodiments, including a buffer air cushion, including an air cushion body arranged on the backrest of a first seat, the air cushion body being configured to be able to expand or contract toward the rear space of the first seat; and a safety airbag, including a plurality of airbags arranged on the backrest of the first seat, the plurality of airbags being configured to have a contracted state and an expanded and deployed state. Figure 8 The method includes steps S810-S820.

[0082] In step S810, when a child is carried on the second seat, the buffer air cushion is controlled to expand and cover the backrest of the first seat to prevent the child from colliding with the backrest of the first seat.

[0083] In step S820, when the vehicle collides and the child leaves the second seat due to inertia, multiple airbags are controlled to inflate and deploy, forming multiple protection chambers when the multiple airbags inflate and deploy. The multiple protection chambers and the backrest of the first seat together form a first accommodation space to restrain the child in the first accommodation space; wherein, the second seat is located behind the first seat.

[0084] In some embodiments, the cushioning air cushion further comprises a first inflating unit, which is connected to the air cushion body and the control unit. The aforementioned control method further comprises: in response to a first control signal, controlling the first inflating unit to inflate the air cushion body; or, in response to a collision of the vehicle and the child leaving the second seat due to inertia, controlling the first inflating unit to inflate the air cushion body; wherein the first control signal is a control signal sent by the driver of the vehicle.

[0085] In some embodiments, the airbag further includes a second inflatable unit; the plurality of airbags include: a first airbag disposed at an upper portion of a backrest of a first seat in a height direction, the first airbag being deployed in a direction toward the second seat when inflated and deployed to form a first protection chamber; two second airbags being symmetrically disposed on left and right sides of a backrest of the first seat in a width direction, the two second airbags being independently deployed from left and right sides of the backrest of the first seat in a direction toward the second seat when inflated and deployed to form two second protection chambers; the first airbag and the two second airbags being independently connected to the second inflatable unit respectively; the second airbag including a first airbag and a second airbag, the first airbag and the second airbag being arranged in an L shape, the extension direction of the first airbag being consistent with the height direction of the vehicle, the extension direction of the second airbag being consistent with the width direction of the vehicle, and the second airbag being located below the first airbag in the height direction;

[0086] The above-mentioned control method also includes: when the vehicle collides and the child leaves the second seat due to inertia, controlling the second inflation unit to inflate the first airbag and the two first airbags; when the child collides with the backrest of the first seat, controlling the second inflation unit to inflate the two second airbags.

[0087] In some embodiments, the aforementioned method further includes: controlling the inflation amount of the two second airbags by the second inflation unit according to the position of the child on the second seat.

[0088] The present application also provides a vehicle, such as Fig. 9 As shown, the vehicle 900 includes a first seat 910, a second seat 920, and a safety protection device 930. The first seat 910 is located in front of the second seat 920, and the safety protection device 930 is arranged on the side of the first seat 910 facing the second seat 920. The safety protection device can be the safety protection device 100 described in any of the above embodiments.

[0089] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0090] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0091] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0092] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0094] The above is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A safety protection device, applied to a vehicle, characterized in that: The safety protection device comprises: A cushioning air cushion, comprising an air cushion body disposed on a backrest of a first seat, wherein the air cushion body is configured to be able to expand or contract toward a rear space of the first seat; an airbag, comprising a plurality of airbags disposed on a backrest of the first seat, the plurality of airbags being configured to have a deflated state and an inflated and deployed state; a control unit, for controlling the cushion to expand and cover the backrest of the first seat to prevent the child from colliding with the backrest of the first seat when a child is carried on the second seat; and In the case where the vehicle collides and the child leaves the second seat due to inertia, the multiple airbags are controlled to expand and deploy, and the multiple airbags are expanded and deployed to form multiple protection chambers, and the multiple protection chambers and the backrest of the first seat are combined to form a first accommodation space, so as to restrain the child in the first accommodation space; Wherein, the second seat is located behind the first seat.

2. The safety protection device according to claim 1, characterized in that: The cushioning air cushion further comprises a first inflation unit, which is connected to the air cushion body and the control unit; The control unit is further configured to: in response to a first control signal, control the first inflation unit to inflate the air cushion body; or, in response to a collision of the vehicle and the child leaving the second seat due to inertia, control the first inflation unit to inflate the air cushion body; The first control signal is a control signal sent by the driver of the vehicle.

3. The safety protection device according to claim 1, characterized in that: The airbag further comprises a second inflation unit, wherein the second inflation unit is connected to the control unit; The plurality of air bags include: a first airbag disposed at an upper portion of the first seat in a backrest height direction, the first airbag being deployed in a direction toward the second seat when inflated and deployed to form a first protection chamber; Two second airbags are symmetrically arranged on the left and right sides of the backrest width direction of the first seat, and the two second airbags are independently deployed from the left and right sides of the backrest of the first seat toward the second seat when inflated and deployed, so as to form two second protection chambers; The first airbag and the two second airbags are independently connected to the second inflation unit respectively; The control unit is used to control the second inflation unit to inflate the plurality of airbags.

4. The safety protection device according to claim 3, characterized in that: The second airbag includes a first airbag and a second airbag, the first airbag and the second airbag are arranged in an L shape, the extension direction of the first airbag is consistent with the height direction of the vehicle, the extension direction of the second airbag is consistent with the width direction of the vehicle, and along the height direction, the second airbag is located below the first airbag; The control unit is also used for: When the vehicle collides and the child leaves the second seat due to inertia, controlling the second inflation unit to inflate the first airbag and the two first airbags; When the child collides with the backrest of the first seat, the second inflation unit is controlled to inflate the two second air bags.

5. The safety protection device according to claim 3 or 4, characterized in that: The control unit is also used for: The second inflation unit is controlled to inflate the two second airbags according to the position of the child on the second seat.

6. A control method for a safety protection device, wherein the safety protection device is applied to a vehicle, and the safety protection device comprises: A cushioning air cushion, comprising an air cushion body disposed on a backrest of a first seat, the air cushion body being configured to be able to expand or contract toward a rear space of the first seat; an air bag, comprising a plurality of air bags disposed on the backrest of the first seat, the plurality of air bags being configured to have a contracted state and an expanded and deployed state; The method is characterized in that the method comprises: when a child is carried on the second seat, controlling the buffer air cushion to expand and cover the backrest of the first seat to prevent the child from colliding with the backrest of the first seat; and, when the vehicle collides and the child leaves the second seat due to inertia, controlling the multiple airbags to expand and deploy, wherein the multiple airbags form multiple protection chambers when expanded and deployed, and the multiple protection chambers and the backrest of the first seat together form a first accommodating space to restrain the child in the first accommodating space; wherein the second seat is located behind the first seat.

7. The control method according to claim 6, characterized in that: The cushioning air cushion further comprises a first inflation unit, which is connected to the air cushion body and the control unit; The method also includes: in response to a first control signal, controlling the first inflation unit to inflate the air cushion body; or, in response to a collision of the vehicle and the child leaving the second seat due to inertia, controlling the first inflation unit to inflate the air cushion body; wherein the first control signal is a control signal sent by the driver of the vehicle.

8. The control method according to claim 6, characterized in that: The airbag further includes a second inflatable unit; the plurality of airbags include: a first airbag disposed at an upper portion of the backrest height direction of the first seat, the first airbag being deployed in a direction toward the second seat when inflated and deployed to form a first protection chamber; two second airbags symmetrically disposed on the left and right sides of the backrest width direction of the first seat, the two second airbags being independently deployed from the left and right sides of the backrest of the first seat in a direction toward the second seat when inflated and deployed to form two second protection chambers; the first airbag and the two second airbags are independently connected to the second inflatable unit respectively; The second airbag includes a first airbag and a second airbag, the first airbag and the second airbag are arranged in an L shape, the extension direction of the first airbag is consistent with the height direction of the vehicle, the extension direction of the second airbag is consistent with the width direction of the vehicle, and along the height direction, the second airbag is located below the first airbag; The method also includes: when the vehicle collides and the child leaves the second seat due to inertia, controlling the second inflation unit to inflate the first airbag and the two first airbags; when the child collides with the backrest of the first seat, controlling the second inflation unit to inflate the two second airbags.

9. The control method according to claim 8, characterized in that: The method further includes: controlling the inflation amount of the two second airbags by the second inflation unit according to the position of the child on the second seat.

10. A vehicle, characterized in that: include: The safety protection device, the first seat and the second seat as described in any one of claims 1 to 5, wherein the safety protection device is arranged on a side of the first seat facing the second seat; wherein the second seat is located behind the first seat.

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