Energy dissipative cushioning system

• US 20090261959A1
• Filed: 04/19/2008
• Published: 10/22/2009
• Est. Priority Date: 04/19/2008
• Status: Abandoned Application

• Current Assignee: Searete LLC (Intellectual Ventures LLC), Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Ishikawa, Muriel Y., Wood, Lowell L. JR., Hyde, Roderick A.
• Application Number:
  US12/148,514
• Publication Number:
  US 20090261959A1
• Time in Patent Office: Days
• US Class Current: 340/436
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60R 21/34 Protecting non-occupants of a vehicle, e.g. pedestrians B60R19/02 takes precedence

Abstract

An apparatus, method, computer program product, and/or system are described that determine a pre-collision event, actuate, in response to determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, determine an updated status of the collision, and adjust one or more properties of the cushioning element based on the updated status of the collision. Other example embodiments are also provided relating to energy dissipative cushioning systems.

Claims

1. A method comprising:

determining a pre-collision event;

actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision;

determining an updated status of the collision; and

adjusting one or more properties of the cushioning element based on the updated status of the collision.

2. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the first object has reached a specific location.

3. The method of claim 1 wherein the determining a pre-collision event comprises:

determining a change in acceleration for the first object that exceeds a threshold.

4. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the collision between the first object and the second object is likely to occur.

5. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the collision between the first object and the second object is likely to occur based on at least a relative location of the first object with respect to the second object.

6. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the collision between the first object and the second object is likely to occur based on at least a relative location and a relative velocity of the first object with respect to the second object.

7. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the collision between the first object and the second object is likely to occur based on a relative velocity of the first object with respect to the second object.

8. The method of claim 1 wherein the determining a pre-collision event comprises:

determining that the collision between the first object and the second object is likely to occur based on at least one of;

a relative location of the first object with respect to the second object;

a relative velocity of the first object with respect to the second object;

a relative acceleration of the first object with respect to the second object;

a relative orientation of the first object with respect to the second object;

a relative angular velocity of the first object with respect to the second object;

or

a relative angular acceleration of the first object with respect to the second object.

9. The method of claim 1 wherein the determining a pre-collision event comprises:

predicting, based upon a calculational model, one or more outcomes of the collision between the first object and the second object.

10. The method of claim 1 wherein the determining a pre-collision event comprises:

predicting, based upon a calculational model, one or more outcomes of the collision between the first object and the second object, based at least in part upon an anticipated actuation of one or more cushioning elements.

11. The method of claim 1 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

expanding a cushioning element to place one or more tension-bearing members in an initial state.

12. The method of claim 1 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

inflating an inflatable fluid bag with gas or liquid to place one or more tension-bearing members in an initial state.

13. The method of claim 1 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

determining, prior to the collision, a location or distance to place a cushioning element based on a relative velocity and relative location of the first object with respect to the second object; and

expanding the cushioning element to place the cushioning element at a determined location or distance prior to the collision between the first object and the second object.

14. The method of claim 1 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to the collision between a first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

actuating, in response to determining a pre-collision event, a cushioning element prior to a collision between a first object and a second object, the cushioning element being actuated at or near a predicted collision location of the first object, at least a portion of the cushioning element extending during the collision around at least a portion of one or more sides of the first object that are proximate to the predicted collision location to at least partially inhibit movement of the first object during the collision.

15. The method of claim 1 wherein the determining an updated status of the collision comprises:

determining, during a collision, an updated status of the collision.

16. The method of claim 1 wherein the determining an updated status of the collision comprises at least one of:

determining an updated status of the first object;

determining an updated status of the first object with respect to the second object;

determining an updated status of the cushioning element;

determining or measuring one or more parameters with respect to the first object, the second object and/or the cushioning element;

or

determining an updated status of a sub-object or passenger provided within the first object.

17. The method of claim 1 wherein the determining an updated status of the collision comprises:

determining an updated status of the first object, wherein said determining the updated status of the first object includes;

determining one or more of;

a location of the first object;

a velocity of the first object;

an acceleration of the first object;

an orientation of the first object;

an angular velocity of the first object;

an angular acceleration of the first object;

or

values of one or more stresses or forces applied to the first object.

18. The method of claim 1 wherein the determining an updated status of the collision comprises:

determining an updated status of the first object with respect to the second object, wherein said determining the updated status of the first object with respect to the second object includes;

determining one or more of;

a relative location of the first object with respect to the second object;

a relative velocity of the first object with respect to the second object;

a relative acceleration of the first object with respect to the second object;

a relative orientation of the first object with respect to the second object;

a relative angular velocity of the first object with respect to the second object;

or

a relative angular acceleration of the first object with respect to the second object.

19. The method of claim 1 wherein the determining an updated status of the collision comprises:

determining an updated status of a cushioning element, where said determining the updated status of the cushioning element includes;

determining one or more of;

a location or position of one or more portions of the cushioning element;

a relative location or position of one or more portions of the cushioning element with respect to the first object;

a relative location or position of one or more portions of the cushioning element with respect to the second object;

an amount of energy dissipated by the cushioning element during the collision;

a fluid pressure of a fluid within the cushioning element;

or

a strain or stress of one or more of the tension bearing members.

20. The method of claim 1 wherein the determining an updated status of the collision comprises:

predicting, based upon a calculational model and one or more conditions sensed during a collision, one or more outcomes of the collision between the first object and the second object.

21. The method of claim 1 wherein the determining an updated status of the collision comprises:

predicting, based upon a calculational model and one or more conditions sensed during a collision, one or more outcomes of the collision between the first object and the second object, based at least in part upon an anticipated adjustment of a cushioning element.

22. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a pressure or amount of a fluid in at least a portion of a cushioning element.

23. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a load carrying capability of one or more tension bearing members.

24. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a stress-strain profile of one or more tension bearing members.

25. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a heat capacity of one or more tension bearing members.

26. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members.

27. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members by cutting or partially cutting the one or more tension-bearing members.

28. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members via use of an explosive device to cut or partially cut the one or more tension-bearing members.

29. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members via use of a brake or clutch to release or lengthen the one or more tension-bearing members.

30. The method of claim 1, wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

puncturing at least a portion of a wall adjacent to a fluid occupied portion of a cushioning element.

31. The method of claim 1, wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting one or more properties of a cushioning element to provide the cushioning element at or near a predicted collision location of the first object at a beginning of a collision, and to allow the cushioning element to expand during the collision around at least a portion of one or more sides of the first object that are proximate to the predicted collision location to at least partially inhibit movement of the first object during the collision.

32. The method of claim 1 wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

applying a heat capacity material to one or more tension-bearing members to increase a work capacity of the one or more tension-bearing members.

33. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting one or more properties of a cushioning element, said adjusting the one or more properties of the cushioning element including;

adjusting a length of one or more tension-bearing members, said adjusting the length of the one or more tension-bearing members to dissipate energy associated with the collision and to maintain the first object within one or more limitations of a collision-related profile for the first object.

34. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting one or more properties of a cushioning element, based on an updated status of a collision and a collision-related profile, said adjusting the one or more properties of the cushioning element to dissipate energy associated with the collision and to maintain the first object within one or more limitations of a collision-related profile for the first object.

35. The method of claim 1 and further comprising:

determining a collision-related profile for the first object; and

adjusting, during a collision, one or more properties of a cushioning element based on an updated status of the collision and the collision-related profile for the first object.

36. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members, said adjusting the length of the one or more tension-bearing members to control a motion or status of the first object and maintain the first object within one or more limitations in a collision-related profile for the first object.

37. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting a length of one or more tension-bearing members via use of an explosive device to cut or partially cut the one or more tension-bearing members, said adjusting the length to control a motion or a status of the first object and maintain the first object within one or more limitations in a collision-related profile for the first object.

38. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting, during a collision, one or more properties of a cushioning element based on an updated status of the collision and a collision-related profile for the first object, said adjusting to bring the first object to rest at an end of the collision and to maintain the first object within one or more limitations of the collision-related profile for the first object.

39. The method of claim 1

wherein the adjusting one or more properties of the cushioning element based on the updated status of the collision comprises:

adjusting, during a collision, one or more properties of a cushioning element based on an updated status of the collision and a collision-related profile for the first object, said adjusting to dissipate energy associated with the collision to bring the first object to rest without the first object exceeding an acceleration or a stress limit indicated by the collision-related profile for the first object.

40. The method of claim 1 and further comprising:

determining a collision-related profile or a calculational model for the first object, wherein said determining the collision-related profile or the calculational model further includes;

retrieving from a memory the collision-related profile or the calculational model for the first object, the collision-related profile or the calculational model including one or more of;

one or more limitations or preferences for acceleration for one or more portions of the first object;

one or more limitations or preferences for stress for one or more portions of the first object;

one or more limitations or preferences for damage for one or more portions of the first object;

one or more properties of the first object;

a model of an object indicating how the first object may move or operate during a collision;

a model of an object indicating how the first object may move or operate during a collision when the cushioning element is actuated or adjusted;

a desired orientation or location for the first object;

or

one or more properties of a sub-object or passenger provided within the first object.

41. The method of claim 1 and further comprising:

actuating, during a collision, one or more additional cushioning elements.

42. A method comprising:

determining a collision-related profile for a first object;

determining a pre-collision event;

actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between the first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision;

determining, during the collision, an updated status of the collision; and

adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object.

43. The method of claim 42 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between the first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

determining, prior to a collision, a location to place a cushioning element to dissipate at least some of an energy associated with the collision and to maintain the first object within one or more limitations in the collision-related profile for the first object; and

expanding the cushioning element to place the cushioning element at a determined location.

44. The method of claim 42 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between the first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

determining, based on the pre-collision event and the collision-related profile for the first object, one or more of a plurality of cushioning elements to be actuated to dissipate at least a portion of the energy associated with the collision; and

actuating the determined one or more cushioning elements.

45. The method of claim 42 wherein the actuating, in response to said determining the pre-collision event, a cushioning element prior to a collision between the first object and a second object, the cushioning element including one or more tension-bearing members to dissipate at least some of an energy associated with the collision based on deforming at least one of the tension-bearing members during the collision, comprises:

determining, prior to the collision, one or more desired dimensions of the cushioning element to dissipate at least some of an energy associated with the collision and maintain the first object within one or more limitations in the collision-related profile for the first object; and

expanding the cushioning element to the determined one or more desired dimensions.

46. The method of claim 42 wherein the determining, during the collision, an updated status of the collision comprises:

determining, during the collision, an updated status of the first object; and

comparing the updated status of the first object to the collision-related profile for the first object.

47. The method of claim 42 wherein the adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object comprises:

adjusting a load carrying capability of one or more tension bearing members, to dissipate energy associated with the collision and maintain the first object within one or more limitations of the collision-related profile for the first object.

48. The method of claim 42 wherein the adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object comprises:

adjusting a stress-strain profile of one or more tension bearing members, to control a motion or a status of the first object and maintain the first object within one or more limitations in the collision-related profile for the first object.

49. The method of claim 42 wherein the adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object comprises:

adjusting a length of one or more tension-bearing members, to control a motion or a status of the first object and to maintain the first object within one or more limitations in the collision-related profile for the first object.

50. The method of claim 42 wherein the adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object comprises:

adjusting a heat capacity of one or more tension bearing members, to control a motion or a status of the first object and to maintain the first object within one or more limitations in the collision-related profile for the first object.

51. The method of claim 42 wherein the adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision and the collision-related profile for the first object comprises:

adjusting a pressure or amount of a fluid in at least a portion of the cushioning element, to control a motion or a status of the first object and to maintain the first object within one or more limitations in the collision-related profile for the first object.

52. A method comprising:

determining a pre-collision event;

actuating, in response to determining the pre-collision event, a cushioning element prior to a collision between a first object and a second object;

determining an updated status of the collision; and

adjusting, during the collision, one or more properties of the cushioning element based on the updated status of the collision.

53-116. -116. (canceled)