A vehicle driver frontal protection airbag device

Abstract

The embodiment of the present specification provides a kind of vehicle driver frontal protection air bag device, including first air bag and second air bag independent of each other, first air bag is arranged in vehicle steering wheel, second air bag is arranged in the corresponding vehicle roof area of instrument panel or driving position, when vehicle is impacted to reach the set threshold value, first air bag and / or second air bag are unfolded, and extend to the space between steering wheel and driver, wherein, when first air bag and second air bag are unfolded simultaneously, first air bag and second air bag are mutually supported and present profiling clamping state.By setting first air bag and second air bag independent of each other, the first air bag of protection driver thoracic cavity part is arranged in steering wheel, the second air bag of protection driver head and neck is arranged in instrument panel or vehicle roof area, can reduce the space occupied by steering wheel, according to the situation that vehicle is impacted, first air bag and / or second air bag are unfolded, can realize the optimal protection scheme to driver.

Description

Technical Field

[0001] This specification relates to the field of vehicle airbag technology, specifically to a vehicle driver frontal protection airbag device. Background Technology

[0002] Currently, the driver's side airbag is usually located inside the steering wheel. When a collision occurs, the airbag deploys from inside the steering wheel to protect the driver. It typically uses one chamber to protect the driver's head, neck, and chest. However, it is often difficult to protect all parts of the body with optimal parameters at the same time. In addition, having all the airbags inside the steering wheel takes up a lot of space in the steering wheel. Summary of the Invention

[0003] In view of this, the embodiments of this specification provide a vehicle driver front protection airbag device. By setting up an independent first airbag and a second airbag, the first airbag protecting the driver's chest cavity is set inside the steering wheel, and the second airbag protecting the driver's head and neck is set in the dashboard or vehicle roof area, which can reduce the space occupied by the steering wheel. Depending on the impact situation of the vehicle, the first airbag and / or the second airbag will deploy, which can achieve the optimal protection scheme for the driver.

[0004] This specification provides the following technical solution: a vehicle driver frontal protection airbag device, including a first airbag and a second airbag that are independent of each other. The first airbag is disposed inside the vehicle steering wheel, and the second airbag is disposed in the dashboard or the vehicle roof area corresponding to the driver's seat. When the vehicle is impacted and the impact reaches a set threshold, the first airbag and / or the second airbag deploy and extend into the space between the steering wheel and the driver.

[0005] When the first airbag and the second airbag deploy simultaneously, the first airbag and the second airbag approach or contact each other.

[0006] Preferably, when the vehicle impact reaches a set first threshold, the first airbag deploys to at least cover the lower half of the steering wheel;

[0007] When the vehicle impact reaches a set second threshold, the second airbag deploys to cover at least the upper half of the steering wheel;

[0008] When the vehicle impact reaches the set third threshold, the first airbag and the second airbag deploy simultaneously, and the second airbag approaches or contacts the first airbag.

[0009] Preferably, the second airbag approaching or contacting the first airbag includes: the two corners of the second airbag extending to clamp the first airbag.

[0010] Preferably, the first airbag and the second airbag employ independently controlled ignition strategies so that the first airbag and / or the second airbag deploy when the vehicle impact reaches different thresholds.

[0011] Preferably, the second airbag deployment covering at least the upper half of the steering wheel includes: the second airbag deployment covering the entire steering wheel.

[0012] Preferably, the first airbag, after deployment, extends at least into the space between the steering wheel and the driver's chest cavity;

[0013] And / or, the second airbag, once deployed, extends at least into the space between the steering wheel and the driver's head and neck cavity.

[0014] Preferably, the first airbag and the second airbag have different volumes, and the air-generating devices corresponding to the first airbag and the second airbag produce different amounts of air, so that there is a pressure difference inside when the first airbag and the second airbag are deployed at the same time.

[0015] Preferably, the longitudinal axis of the first airbag is located on the extension line of the longitudinal axis of the second airbag, or the longitudinal axis of the first airbag and the longitudinal axis of the second airbag are arranged parallel to each other.

[0016] Preferably, the first airbag is disposed inside the steering wheel hub; or the first airbag is disposed at the 6 o'clock position on the steering wheel rim.

[0017] Preferably, after the first airbag is deployed, it at least partially contacts the steering wheel hub so that the steering wheel hub supports the first airbag;

[0018] And / or, after the first airbag deploys, it at least partially contacts the steering wheel rim so that the steering wheel rim supports the first airbag.

[0019] Preferably, the first airbag has a plurality of air vents on the side away from the driver;

[0020] And / or, the second airbag has a plurality of air vents on the side away from the driver.

[0021] Preferably, the first airbag and the second airbag being close to or in contact with each other includes: the first airbag and the second airbag supporting each other in a conformal clamping state.

[0022] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0023] By setting up independent first and second airbags, the first airbag protecting the driver's chest is located inside the steering wheel, while the second airbag protecting the driver's head and neck is located in the dashboard or vehicle roof area. This reduces the space occupied on the steering wheel. Depending on the impact situation, the first and / or second airbags deploy to achieve the optimal protection for the driver. When the first and second airbags deploy simultaneously, they support each other in a conformal clamping state, ensuring the stability of the first and second airbags after deployment and guaranteeing the protective effect on the driver. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a frontal view of the first and second airbags simultaneously deployed when the second airbag provided by the present invention is installed inside the dashboard.

[0026] Figure 2 This is a side view of the first airbag when the second airbag is installed inside the dashboard, as provided by the present invention;

[0027] Figure 3 This is a side view of the second airbag when it is deployed inside the dashboard, as provided by the present invention.

[0028] Figure 4 This is a side view of the first and second airbags when the second airbag provided by the present invention is installed inside the dashboard and the airbags deploy simultaneously.

[0029] Figure 5 This is a frontal schematic diagram of the first and second airbags deploying simultaneously when the second airbag provided by the present invention is disposed in the roof area of ​​the vehicle.

[0030] Figure 6 This is a side view of the first airbag when the second airbag is installed in the roof area of ​​the vehicle;

[0031] Figure 7 This is a side view of the second airbag when it is deployed, provided that the second airbag is installed in the roof area of ​​the vehicle.

[0032] Figure 8 This is a side view of the first and second airbags deploying simultaneously when the second airbag is located in the roof area of ​​the vehicle.

[0033] In the picture, 1 is the steering wheel; 2 is the first airbag; and 3 is the second airbag. Detailed Implementation

[0034] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0035] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0039] Currently, the DAB (Driver's Airbag) frontal airbag on the market consists of a large air bag and a large generator; it has a chamber to protect the driver's head, neck and chest, but it is often difficult to protect all parts at the same time with optimal parameters; in particular, the body shape and sitting posture of the occupants are often very different, which greatly increases the difficulty of occupant protection.

[0040] The inventors conducted extensive and in-depth experiments and designed a frontal protective airbag device for vehicle drivers.

[0041] The technical problem solved by this invention is to improve the protection of drivers.

[0042] More specifically, the solution adopted by the present invention includes: by setting up independent first and second airbags, the first airbag protecting the driver's chest cavity is set inside the steering wheel, and the second airbag protecting the driver's head and neck is set in the dashboard or vehicle roof area, which can reduce the space occupied by the steering wheel. Depending on the impact of the vehicle, the first airbag and / or the second airbag will deploy, which can achieve the optimal protection scheme for the driver. In cases where the collision conditions are not severe, it is possible to choose between not deploying both airbags or deploying a single airbag, which is the most economical for repairs. When the first and second airbags deploy simultaneously, the first and second airbags support each other in a conformal clamping state, which can ensure the stability of the first and second airbags after deployment and ensure the protective effect on the driver.

[0043] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0044] like Figures 1-8 As shown, a vehicle driver frontal protection airbag device includes a first airbag 2 and a second airbag 3 that are independent of each other. The first airbag 2 is disposed inside the vehicle steering wheel 1. After the first airbag 2 is deployed, it is used to protect the driver's chest cavity. The second airbag 3 is disposed in the area of ​​the dashboard or the vehicle roof corresponding to the driver's seat. After the second airbag 3 is deployed, it is used to protect the driver's head and neck. When the vehicle is impacted and the impact reaches a set threshold, the first airbag 2 and / or the second airbag 3 are deployed and extend into the space between the steering wheel 1 and the driver.

[0045] When the first airbag 2 and the second airbag 3 deploy simultaneously, the first airbag 2 and the second airbag 3 support each other in a conformal clamping state, which can ensure the stability of the first airbag 2 and the second airbag 3 after deployment and ensure the protection effect for the driver.

[0046] By setting up independent first airbags 2 and second airbags 3, the first airbag 2, which protects the driver's chest cavity, is located inside the steering wheel 1, while the second airbag 3, which protects the driver's head and neck, is located in the dashboard or vehicle roof area. This reduces the space occupied by the steering wheel 1 and frees up the design of the steering wheel 1. Depending on the impact situation, the first airbag 2 and / or the second airbag 3 will deploy, achieving the optimal protection solution for the driver. When the first airbag 2 and the second airbag 3 deploy simultaneously, they support each other in a conformal clamping state, which can ensure the stability of the first airbag 2 and the second airbag 3 after deployment and ensure the protective effect on the driver.

[0047] It should be noted that in cases where the collision conditions are not severe, it is possible to choose not to deploy the first airbag 2 and the second airbag 3, or to deploy one of the first airbag 2 and the second airbag 3. This is the most economical option for repairs. If the collision conditions exceed the threshold set by the car manufacturer (the specific threshold can be set by the car manufacturer according to the actual conditions), the first airbag 2 and the second airbag 3 will deploy simultaneously to work together to protect the driver.

[0048] It should also be noted that when the first airbag 2 and the second airbag 3 deploy simultaneously, the main protection area of ​​the first airbag 2 covers the lower half of the steering wheel 1, and the main protection area of ​​the second airbag 3 covers the upper half of the steering wheel 1. Furthermore, two corners of the second airbag 3 extend towards the sides of the first airbag 2 and clamp the first airbag 2, so that the first airbag 2 and the second airbag 3 support each other in a shape-following clamping state.

[0049] like Figures 1-8 As shown, in some embodiments, when the vehicle impact reaches a set first threshold, the first airbag 2 deploys to at least cover the lower half of the steering wheel 1. When the vehicle is impacted by the first threshold (i.e., the collision condition is not severe), the first airbag 2 deploys to at least cover the lower half of the steering wheel 1. The driver can be protected by the seat belt in conjunction with the first airbag 2. In this case, the second airbag 3 does not need to deploy.

[0050] When the vehicle impact reaches the set second threshold, the second airbag 3 deploys to at least cover the upper half of the steering wheel 1. When the vehicle is impacted by the second threshold (i.e., the collision condition is more serious), the second airbag 3 deploys to cover the steering wheel 1. The driver can be protected by the seat belt in conjunction with the second airbag 3. In this case, it is not necessary for the first airbag 2 and the second airbag 3 to deploy at the same time.

[0051] When the vehicle impact reaches the set third threshold, the first airbag 2 and the second airbag 3 deploy simultaneously. The two corners of the second airbag 3 near the first airbag 2 extend to clamp the first airbag 2. When the vehicle is impacted by the third threshold (i.e., the collision condition is very serious), the first airbag 2 and the second airbag 3 deploy simultaneously to cover the steering wheel 1. After deployment, the first airbag 2 and the second airbag 3 support each other in a conformal clamping state. After deployment, the first airbag 2 is used to protect the driver's chest cavity, and after deployment, the second airbag 3 is used to protect the driver's head and neck. Combined with the seat belt, the driver is protected.

[0052] It should be noted that the first airbag 2 and the second airbag 3 are controlled independently. Depending on the collision situation of the vehicle, the first airbag 2 can be deployed, the second airbag 3 can be deployed, or the first airbag 2 and the second airbag 3 can be deployed simultaneously. The specific values ​​of the first threshold, the second threshold and the third threshold can be set by the car manufacturer according to the actual situation of the vehicle.

[0053] like Figures 1-8 As shown, in some embodiments, the first airbag 2 and the second airbag 3 employ independently controlled ignition strategies so that when the vehicle impact reaches different thresholds, the first airbag 2 and / or the second airbag 3 deploy. The first airbag 2 and the second airbag 3 each include independent gas generating devices (gas generators) and air bags. The ignition time and ignition strategy can be controlled separately to achieve the individual or combined action of the first airbag 2 and the second airbag 3.

[0054] like Figures 1-8 As shown, in some embodiments, the deployment of the second airbag 3 to at least cover the upper half of the steering wheel 1 includes: the second airbag 3 deploying to cover the entire steering wheel 1; when the second airbag 3 deploys alone, the second airbag 3 deploys from inside the instrument panel behind the steering wheel 1 and inflates between the steering wheel 1 and the driver; or the second airbag 3 deploys from the roof above the steering wheel 1 and inflates between the steering wheel 1 and the driver.

[0055] like Figures 1-8 As shown, in some embodiments, the first airbag 2 extends at least into the space between the steering wheel 1 and the driver's chest cavity after deployment, thereby protecting the driver's chest.

[0056] After the second airbag 3 is deployed, it extends at least into the space between the steering wheel 1 and the driver's head and neck cavity, thereby protecting the driver's head and neck.

[0057] It should be noted that when the first airbag 2 deploys alone, the deployed first airbag 2 covers not only the space between the steering wheel 1 and the driver's chest cavity, and when the second airbag 3 deploys alone, the deployed first airbag 2 covers not only the space between the driver's head and neck cavity.

[0058] like Figures 1-8 As shown, in some embodiments, the first airbag 2 and the second airbag 3 have different volumes, so that there is a pressure difference inside when the first airbag 2 and the second airbag 3 are deployed at the same time. The first airbag 2 and the second airbag 3 are respectively matched with air-generating devices with different outputs, so that there is an internal pressure difference after the first airbag 2 and the second airbag 3 are deployed, thereby adjusting the injury value of the head and chest respectively.

[0059] It should be noted that the volume of the first airbag 2 ranges from 5 to 40 L, with a preferred range of 10 to 25 L.

[0060] like Figure 1 and Figure 5 As shown, in some embodiments, the longitudinal axis of the first airbag 2 is located on the extension line of the longitudinal axis of the second airbag 3, or the longitudinal axis of the first airbag 2 and the longitudinal axis of the second airbag 3 are arranged parallel to each other. The bag-shaped arrangement of the first airbag 2 and the second airbag 3 is close to or aligned with each other along the longitudinal axis of the vehicle. When the first airbag 2 and the second airbag 3 are deployed at the same time, two corners of the second airbag 3 extend toward both sides of the first airbag 2 and clamp the first airbag 2. The two corners of the second airbag 3 are symmetrically distributed about the first airbag 2 to ensure the support effect between the first airbag 2 and the second airbag 3 after deployment.

[0061] like Figure 1 and Figure 5 As shown, in some embodiments, the first airbag 2 is disposed inside the hub of the steering wheel 1; or the first airbag 2 is disposed on the decorative part or spoke at the 6 o'clock position of the steering wheel 1. Depending on the structure of the steering wheel 1, the first airbag 2 can be disposed inside the hub of the steering wheel 1, or disposed on the decorative part or spoke at the 6 o'clock position of the steering wheel 1, as long as it is ensured that the first airbag 2 can cover at least the lower half of the steering wheel 1 when deployed.

[0062] like Figure 1 , Figures 4-5 and Figure 8 As shown, in some embodiments, after the first airbag 2 is deployed, it at least partially contacts the hub of the steering wheel 1 so that the hub of the steering wheel 1 supports the first airbag 2. By supporting the deployed first airbag 2 through the hub of the steering wheel 1, the stability of the first airbag 2 is ensured.

[0063] After the first airbag 2 is deployed, it will at least partially contact the steering wheel 1 so that the steering wheel 1 supports the first airbag 2. The steering wheel 1 and its parts will support the second airbag 3, ensuring the stability of the second airbag 3 and protecting the driver.

[0064] It should be noted that the first airbag 2 and the second airbag 3 also support each other to ensure the stability of the first airbag 2 and the second airbag 3.

[0065] In some embodiments, the first airbag 2 has several air vents on the side away from the driver. By setting several air vents on the side of the first airbag 2 away from the driver, the airbag 2 can be deflated through the air vents after it is deployed, thus avoiding direct contact between the first airbag 2 and the driver's chest cavity and causing injury when the first airbag 2 is ejected.

[0066] The second airbag 3 has several air vents on the side away from the driver. By setting several air vents on the side of the second airbag 3 away from the driver, the airbag 3 will depress through the air vents after it is deployed, thus avoiding direct contact between the second airbag 3 and the driver's head and neck when it is ejected, which would cause injury.

[0067] The various embodiments in this specification can be referred to interchangeably for the same or similar parts. Each embodiment focuses on describing the differences from other embodiments. In particular, the method embodiments described later are relatively simple in description since they correspond to the system, and relevant parts can be referred to the descriptions in the system embodiments.

[0068] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle driver frontal protection airbag device, characterized in that, The system includes a first airbag and a second airbag, which are independent of each other. The first airbag is located inside the vehicle's steering wheel, and the second airbag is located in the dashboard or the roof area corresponding to the driver's seat. When the vehicle is impacted and the impact reaches a predetermined threshold, the first airbag and / or the second airbag deploy and extend into the space between the steering wheel and the driver. When the vehicle impact reaches a set first threshold, the first airbag deploys to cover at least the lower half of the steering wheel, and the second airbag does not deploy. When the vehicle impact reaches a set second threshold, the second airbag deploys to cover at least the upper half of the steering wheel, and the first airbag does not deploy. When the vehicle impact reaches a set third threshold, the first airbag and the second airbag deploy simultaneously to cover the steering wheel. The first, second, and third thresholds are related to the collision conditions. When the first airbag and the second airbag deploy simultaneously, the first airbag and the second airbag support each other in a conformal clamping state; the two corners below the second airbag extend to clamp the first airbag to limit the lateral displacement of the first airbag, so that the first airbag and the second airbag are stably maintained in the space between the steering wheel and the driver.

2. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The first airbag and the second airbag employ independently controlled ignition strategies so that the first airbag and / or the second airbag deploy when the vehicle impact reaches different thresholds.

3. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The second airbag deploying to at least cover the upper half of the steering wheel includes: the second airbag deploying to cover the entire steering wheel.

4. The vehicle driver frontal protective airbag device according to any one of claims 1-3, characterized in that, After the first airbag deploys, it extends at least into the space between the steering wheel and the driver's chest cavity; And / or, the second airbag, once deployed, extends at least into the space between the steering wheel and the driver's head and neck cavity.

5. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The first airbag and the second airbag have different volumes, and the gas generating devices corresponding to the first airbag and the second airbag produce different amounts of gas, so that there is a pressure difference inside when the first airbag and the second airbag are deployed at the same time.

6. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The longitudinal axis of the first airbag is located on the extension line of the longitudinal axis of the second airbag, or the longitudinal axis of the first airbag and the longitudinal axis of the second airbag are arranged parallel to each other.

7. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The first airbag is located inside the steering wheel hub; or the first airbag is located at the 6 o'clock position on the steering wheel rim.

8. The vehicle driver frontal protection airbag device according to claim 1, characterized in that, After the first airbag is deployed, it will at least partially contact the steering wheel hub so that the steering wheel hub supports the first airbag. And / or, after the first airbag deploys, it at least partially contacts the steering wheel rim so that the steering wheel rim supports the first airbag.

9. The vehicle driver frontal protective airbag device according to claim 1, characterized in that, The first airbag has several air vents on the side away from the driver; And / or, the second airbag has a plurality of air vents on the side away from the driver.

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