Displaceable steering wheel safety systems and related methods

Patent metadata

Field	Value
Publication number	US-10239480-B2
Application number	US-201816005414-A
Country	US
Kind code	B2
Filing date	Jun 11, 2018
Priority date	May 17, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

Apparatus, methods, and systems for repositioning a steering wheel and/or airbag cushion prior to and/or during deployment of the airbag cushion resulting from an impact event. Some embodiments may comprise a steering wheel configured to be positioned between a first, operational configuration and a second, deployed configuration at least in part by a translational movement of the steering wheel. An airbag cushion may be deployable from the steering wheel and may be configured to move from the first configuration to the second configuration before or during deployment of the airbag cushion.

First claim

The invention claimed is:

1. A vehicle safety system, comprising:
a steering wheel configured to be positioned between a first, operational configuration and a second, deployed configuration, wherein the steering wheel is configured to be repositioned between the first configuration and the second configuration at least in part by a translational movement of the steering wheel; and
an airbag cushion deployable from the steering wheel, wherein the steering wheel is configured to automatically move from the first configuration to the second configuration before or during deployment of the airbag cushion.

2. The vehicle safety system of claim 1 , wherein in the second configuration the steering wheel is positioned laterally relative to the first configuration.

3. The vehicle safety system of claim 1 , wherein the airbag cushion is configured to deploy in either the first configuration or the second configuration to protect a single vehicle occupant.

4. The vehicle safety system of claim 1 , further comprising a steering wheel actuator configured to move the steering wheel from the first configuration to the second configuration.

5. The vehicle safety system of claim 4 , wherein the steering wheel actuator is configured to reposition the steering wheel in either a first direction or a second direction opposite from the first direction depending upon detected characteristics of an impact event.

6. The vehicle safety system of claim 5 , further comprising at least one sensor, wherein the at least one sensor is configured to detect a predetermined characteristic of an impact event and, upon detecting the predetermined characteristic of the impact event, transmit a signal to displace the airbag cushion in either the first direction or the second direction.

7. The vehicle safety system of claim 6 , wherein the first direction is towards a driver-side door of a vehicle comprising the vehicle safety system, and wherein the second direction is towards a passenger-side door of the vehicle relative to an initial position of the steering wheel.

8. The vehicle safety system of claim 1 , wherein the system is configured such that the steering wheel is operably coupled to wheels of a vehicle comprising the vehicle safety system in both the first and second configurations such that the steering wheel can be used to move wheels of the vehicle in both the first and second configurations.

9. The vehicle safety system of claim 1 , wherein the steering wheel is part of a steering wheel assembly, and wherein the steering wheel is further configured to be repositioned between the first configuration and the second configuration at least in part by a pivotal movement of at least one component of the steering wheel assembly.

10. The vehicle safety system of claim 9 , wherein the steering wheel is configured to be repositioned between the first configuration and the second configuration at least in part by a pivotal movement of a steering wheel shaft of the steering wheel assembly with respect to a steering column shaft of the steering wheel assembly.

11. The vehicle safety system of claim 10 , wherein the steering wheel is further configured to be repositioned between the first configuration and the second configuration at least in part by a tilting movement of the steering wheel.

12. The vehicle safety system of claim 1 , wherein the steering wheel is configured to actuate in response to either a detection or prediction of an impact event.

13. A vehicle safety system, comprising:
a steering wheel;
an airbag cushion coupled with the steering wheel; and
means for laterally displacing the airbag cushion in response to either a detection or prediction of an impact event.

14. The vehicle safety system of claim 13 , wherein the means for laterally displacing the airbag cushion comprises means for laterally displacing the steering wheel.

15. The vehicle safety system of claim 14 , wherein the means for laterally displacing the steering wheel comprises:
a spring; and
a pyrotechnic release mechanism, wherein the pyrotechnic release mechanism is configured to retain the spring in a compressed configuration and, upon actuation of the pyrotechnic release mechanism, release the spring, and wherein, upon release of the spring, the spring is configured to laterally displace the steering wheel.

16. The vehicle safety system of claim 15 , wherein the means for laterally displacing the steering wheel further comprises:
a pilot gear; and
a steering wheel shaft gear coupled with the pilot gear, wherein, upon actuation of the pyrotechnic release mechanism, the spring is configured to disengage the steering wheel shaft gear from the pilot gear.

17. The vehicle safety system of claim 14 , wherein the means for laterally displacing the steering wheel comprises:
a piston; and
a pyrotechnic device coupled with the piston such that, upon deployment of the pyrotechnic device, the piston forces the steering wheel in a lateral direction.

18. The vehicle safety system of claim 17 , further comprising a steering wheel shaft, wherein the piston is configured to decouple the steering wheel shaft from a steering column shaft.

19. The vehicle safety system of claim 18 , further comprising a connector for coupling the steering wheel shaft to the steering column shaft, wherein the piston comprises a forked ramp structure, and wherein the forked ramp structure is configured to decouple the steering wheel shaft from the steering column shaft.

20. The vehicle safety system of claim 14 , wherein the means for laterally displacing the steering wheel is configured to reposition the steering wheel between a first, operational configuration and a second, deployed configuration, and wherein the means for laterally displacing the steering wheel is further configured to reposition the steering wheel between the first configuration and the second configuration at least in part by a translational movement of the steering wheel.

21. The vehicle safety system of claim 14 , wherein the means for laterally displacing the steering wheel is configured to reposition the steering wheel between the first configuration and the second configuration before or during deployment of the airbag cushion.

Assignees

• Autoliv Asp Inc

Inventors

• Paxton Donald James
• Forton Dino Anthony
• Siddharthan Chandrakanth
• Keyser David
• Kruse Dion Karl-Axel

Classifications

• B62D1/10

  Hubs; Connecting hubs to steering columns, e.g. adjustable (B62D1/11 takes precedence) · CPC title

• B62D1/197

  incorporating devices for preventing ingress of the steering column into the passengers space in case of accident · CPC title

• B60R21/203 Primary

  in steering wheels or steering columns · CPC title

• B60R21/0136 Primary

  responsive to actual contact with an obstacle {, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle (monitoring crash strength in combination with passenger seat detection B60R21/01558)} · CPC title

• B60R2021/01252

  Devices other than bags · CPC title