System and method for steering wheel adjustment

• US 20050140127A1
• Filed: 12/17/2004
• Published: 06/30/2005
• Est. Priority Date: 12/29/2003
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Nakajima, Gikou
• Application Number:
  US11/013,344
• Publication Number:
  US 20050140127A1
• Time in Patent Office: Days
• US Class Current: 280/731
• CPC Class Codes: B60R 2021/01218 control of expansion speed
• CPC Class Codes: B60R 21/01512 Passenger detection systems
• CPC Class Codes: B60R 21/01552 detecting position of specific human body parts, e.g. face, eyes or hands
• CPC Class Codes: B60R 21/33 Arrangements for non-electric triggering of inflation electrical circuits for triggering safety arrangements B60R21/01
• CPC Class Codes: B62D 1/181 with power actuated adjustment, e.g. with position memory
• CPC Class Codes: B62D 1/197 incorporating devices for preventing ingress of the steering column into the passengers space in case of accident

Abstract

A system and method for adjustment of a steering wheel position and/or airbag pressurization is disclosed. According to one embodiment, a steering wheel positioning method includes sensing occupant characteristics of an occupant in a seat facing a steering wheel. An inflator control for an airbag in the steering wheel is adjusted based on the occupant characteristics, and the steering wheel is positioned based on the occupant characteristics and the inflator control. In another embodiment, a safety restraint control method includes sensing occupant characteristics of an occupant in a seat facing a steering wheel, and determining a position of the steering wheel. An inflator control for an airbag in the steering wheel is adjusted based on the occupant characteristics and the position of the steering wheel.

Claims

1. -14. (canceled)

15. A steering wheel positioning system for a vehicle, comprising:

an occupant characteristics sensing module adapted to determine characteristics of an occupant in a seat facing a steering wheel;

an inflator control module adapted to adjust inflator gas flow rate to an airbag in the steering wheel based on said occupant characteristics; and

a steering wheel control module adapted to position said steering wheel based on said occupant characteristics and said inflator gas flow rate.

16. The system of claim 15, wherein the occupant characteristics include one or more of the weight of the occupant and the position of the head of the occupant.

17. The system of claim 15, wherein the inflator control module is adapted to adjust inflator gas flow rate on a continuous scale based on occupant characteristics.

18. The system of claim 15, wherein the inflator control module is adapted to adjust inflator gas flow rate at discrete levels based on occupant characteristics.

19. The system of claim 18, wherein the inflator control module is adapted to reduce inflator gas flow rate when the occupant is determined to be smaller than a fifth-percentile adult female.

20. The system of claim 15, wherein the steering wheel control module is adapted to adjust a steering wheel angle.

21. The system of claim 20, wherein the steering wheel control module is adapted to adjust a steering extension position.

22. The system of claim 15, wherein the steering wheel control module is adapted to adjust a steering extension position.

23. The system of claim 15, further comprising:

a vehicle seat control module for adjusting at least one of a position or shape of at least one of a vehicle seat, a seat cushion and a seat back according to determined occupant characteristics.

24. The system of claim 15, further comprising:

a mirror control module for adjusting a position of at least one of a side view mirror and a rear view mirror according to determined occupant characteristics.

25. The system of claim 15, further comprising:

a seatbelt control module for adjusting a seatbelt height of a shoulder belt according to determined occupant characteristics.

26. The system of claim 15, further comprising:

a seatbelt control module for moving at least one of a seatbelt tongue and a seatbelt buckle into an engaging position, the engaging position being determined according to the sensed occupant characteristics.

27. The system of claim 15, wherein the occupant characteristics sensing module includes at least one of a seat weight sensor, an image recognition sensor and an electric capacity sensor.

28. The system of claim 27, wherein the image recognition sensor includes at least one of a CCD camera, a CMOS camera, a 3D camera and a stereo camera.

29. -42. (canceled)

43. A safety restraint control system for a vehicle, comprising:

an occupant characteristics sensing module adapted to determine characteristics of an occupant in a seat facing a steering wheel;

a steering wheel position module adapted to determine a position of the steering wheel; and

an inflator control module adapted to adjust inflator gas flow rate to an airbag in the steering wheel based on said occupant characteristics and said position of the steering wheel.

44. The system of claim 43, wherein the occupant characteristics include one or more of the weight of the occupant and the position of the head of the occupant.

45. The system of claim 43, wherein the inflator control module is adapted to adjust inflator gas flow rate on a continuous scale.

46. The system of claim 43, wherein the inflator control module is adapted to adjust inflator gas flow rate at discrete levels.

47. The system of claim 46, wherein the inflator control module is adapted to reduce inflator gas flow rate when the occupant is determined to be smaller than a fifth-percentile adult female.

48. The system of claim 43, wherein the steering wheel position module is adapted to determine a steering wheel angle.

49. The system of claim 48, wherein the steering wheel position module is adapted to determine a steering extension position.

50. The system of claim 43, wherein the steering wheel position module is adapted to determine a steering extension position.

51. The system of claim 43, further comprising:

a vehicle seat control module for adjusting at least one of a position or shape of at least one of a vehicle seat, a seat cushion and a seat back according to determined occupant characteristics.

52. The system of claim 43, further comprising:

a mirror control module for adjusting a position of at least one of a side view mirror and a rear view mirror according to determined occupant characteristics.

53. The system of claim 43, further comprising:

a seatbelt control module for adjusting a seatbelt height of a shoulder belt according to determined occupant characteristics.

54. The system of claim 43, further comprising:

a seatbelt control module for moving at least one of a seatbelt tongue and a seatbelt buckle into an engaging position, the engaging position being determined according to the sensed occupant characteristics.

55. The system of claim 43, wherein the occupant characteristics sensing module includes at least one of a seat weight sensor, an image recognition sensor and an electric capacity sensor.

56. The system of claim 55, wherein the image recognition sensor includes at least one of a CCD camera, a CMOS camera, a 3D camera and a stereo camera.