Interlocking vehicle airbags

• US 9,802,568 B1
• Filed: 09/04/2015
• Issued: 10/31/2017
• Est. Priority Date: 09/04/2015
• Status: Active Grant

• Current Assignee: Waymo LLC (Alphabet Inc.)
• Original Assignee: Waymo LLC (Alphabet Inc.)
• Inventors: Larner, Daniel Lynn
• Primary Examiner(s): Ramesh, Krishnan
• Application Number:
  US14/845,410
• Time in Patent Office: 788 Days
• Field of Search: None
• CPC Class Codes: B60R 2021/01211 Expansion of air bags
• CPC Class Codes: B60R 2021/01286 Electronic control units
• CPC Class Codes: B60R 2021/23107 the bag being integrated in a multi-bag system
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60R 21/36 using airbags

Abstract

Aspects of the disclosure relate to airbag systems for vehicles having interlocking airbags. An example airbag system may include a first airbag having a first shape and a second airbag having a second shape. The first shape and the second shape are configured to interlock with one another in order to reduce the likelihood of an object passing between the first airbag and the second airbag when the first and second airbags are inflated. In addition, the first airbag and second airbag are arranged to deploy on an exterior of the vehicle. An airbag system can also include one or more processors configured to determine that an impact with an object is likely to occur within a predetermined period of time. These processors can also use the determination to send a first signal to deploy the first airbag and a second signal to deploy the second airbag.

Claims

1. An airbag system for a vehicle, the system comprising:

a first airbag having a first shape; and

second airbags each provided adjacent to the first airbag and each having a second shape such that the first shape and the second shapes are configured to interlock, overlap and make contact with one another,

wherein the first airbag is deployed prior to the second airbags when an area of a surface of the first airbag configured to contact an object and oriented away from the vehicle is greater than an area of a surface of the first airbag oriented towards the vehicle and the first airbag is deployed after the second airbags when the area of the surface of the first airbag configured to contact the object and oriented away from the vehicle is less than the area of the surface of the first airbag oriented towards the vehicle.

2. The system of claim 1, wherein the first airbag and second airbags are arranged to deploy on an exterior of the vehicle.

3. The system of claim 1, further comprising one or more computing devices having one or more processors configured to:

determine, using data from one or more sensors, that an impact with the object is likely to occur within a predetermined period of time; and

use the determination to send a first signal to deploy the first airbag and second signals to deploy the second airbags.

4. The system of claim 3, wherein the first signal and second signals are sent according to a predetermined sequence such that the first signal and second signals are configured to cause the first airbag and second airbags to deploy at different times according to an expected deployment time for each of the first airbag and the second airbags.

5. The system of claim 4, wherein the first and second signals are further configured to cause the first airbag and the second airbags to be fully deployed within a predetermined amount of time from one another.

6. The system of claim 3, wherein the one or more processors are further configured to:

determine, using the data from one or more sensors, an estimated time of the impact, and

wherein the first signal and the second signals are configured to cause the first airbag and the second airbags to be fully deployed within a predetermined amount of time of the estimated time of the impact.

7. The system of claim 1, wherein portions of the first airbag and the second airbags are configured to overlap one another relative to an exterior surface of the vehicle in order to prevent the object from passing between the first airbag and the second airbag and hitting the exterior surface of the vehicle when the first and second airbags are inflated.

8. The system of claim 7, wherein an overlapping portions of the first airbag and the second airbags include a connection mechanism configured to hold the overlapping portions to one another when the airbags are inflated and when the airbags are deflating after inflating.

9. The system of claim 1, further comprising the vehicle.

10. A method for deploying an airbag system for a vehicle, the method comprising:

deploying a first airbag having a first shape prior to second airbags each provided adjacent to the first airbag and each having a second shape such that the first shape and the second shapes interlock, overlap and make contact with one another when an area of a surface of the first airbag configured to contact an object and oriented away from the vehicle is greater than an area of a surface of the first airbag oriented towards the vehicle;

deploying the first airbag after the second airbag when the area of the surface of the first airbag configured to contact the object and oriented away from the vehicle is less than the area of the surface of the first airbag oriented towards the vehicle.

11. The method of claim 10, wherein the first airbag and second airbags are arranged to deploy on an exterior of the vehicle.

12. The method of claim 11, wherein the first air-bag and the second airbags are deployed such that portions of the first airbag and the second airbags are configured to overlap one another relative to an exterior surface of the vehicle in order to prevent the object from passing between the first airbag and the second airbags and hitting the exterior surface of the vehicle when the first and second airbags are inflated.

13. The method of claim 12, wherein an overlapping portions of the first airbag and the second airbags include a connection mechanism configured to hold the overlapping portions to one another when the airbags are inflated and when the airbags are deflating after inflating and wherein the connection mechanism includes an adhesive.

14. The method of claim 10, further comprising:

determining, by one or more processors, using data from one or more sensors, that an impact with the object is likely to occur within a predetermined period of time; and

using, by the one or more processors, the determination to send a first signal in order to deploy the first airbag and second signals in order to deploy the second airbags.

15. The method of claim 14, wherein the first signal and second signals are sent according to a predetermined sequence such that the first signal and second signals are configured to cause the first airbag and second airbags to deploy at different times according to an expected deployment time for each of the first airbag and the second airbags.

16. The method of claim 15, wherein the first and second signals are deployed in order to cause the first airbag and the second airbags to be fully deployed within a predetermined amount of time from one another.

17. The method of claim 14, further comprising:

determining, by the one or more processors, using the data from one or more sensors, an estimated time of the impact, and

wherein the first signal and the second signals are configured to cause the first airbag and the second airbags to be fully deployed within a predetermined amount of time of the estimated time of the impact.

18. A non-transitory computer readable medium on which instructions are stored, the instructions when executed by one or more processors, cause the one or more processors to perform a method, the method comprising:

deploying a first airbag having a first shape prior to second airbags each provided adjacent to the first airbag and each having a second shape such that the first shape and the second shapes interlock, overlap and make contact with one another when an area of a surface of the first airbag configured to contact an object and oriented away from the vehicle is greater than an area of a surface of the first airbag oriented towards the vehicle;

deploying the first airbag after the second airbag when the area of the surface of the first airbag configured to contact the object and oriented away from the vehicle is less than the area of the surface of the first airbag oriented towards the vehicle.

19. The medium of claim 18, wherein the method further comprises:

determining using data from one or more sensors, that an impact with the object is likely to occur within a predetermined period of time; and

using the determination to send a first signal to deploy the first airbag and second signals to deploy the second airbags.

20. The medium of claim 19, wherein the first signal and second signals are sent according to a predetermined sequence such that the first signal and second signals are configured to cause the first airbag and second airbags to deploy at different times according to an expected deployment time for each of the first airbag and the second airbags.