Adhesive hood reinforcement for pedestrian protection

• US 10,625,707 B2
• Filed: 04/17/2018
• Issued: 04/21/2020
• Est. Priority Date: 04/17/2018
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Hammer, Jeremiah T., Grantham, Troy N.
• Primary Examiner(s): Dayoan, D Glenn
• Assistant Examiner(s): Bonifazi, Melissa Ann
• Application Number:
  US15/955,436
• Publication Number:
  US 20190315305A1
• Time in Patent Office: 735 Days
• CPC Class Codes: B60R 2021/343 using deformable body panel, bodywork or components
• CPC Class Codes: B60R 21/34 Protecting non-occupants of a vehicle, e.g. pedestrians B60R19/02 takes precedence
• CPC Class Codes: B62D 25/105 for motor cars
• CPC Class Codes: B62D 25/12 Parts or details thereof locks E05B, E05B83/16; devices for holding open E05C17/00, e.g. while carrying oversize objects E05C17/042; hinges E05D; counterbalancing means E05F; checks, stops, buffers E05F5/00; springs, e.g. pneumatic springs F16F

Abstract

Systems and apparatus for a vehicle for improving pedestrian safety. The apparatus includes a hood of a vehicle including a hood outer panel having an exterior surface and an interior surface. The hood includes a hood inner panel connected to the hood outer panel. The hood includes a reinforcing patch connected to the interior surface of the hood outer panel between the hood outer panel and the hood inner panel, at a reinforcing location aligned with a structural component of the vehicle. The reinforcing patch is configured to increase the rigidity and mass of the hood outer panel at the reinforcing location to absorb energy from a pedestrian struck by the vehicle and to reduce impact from the structural component of the vehicle onto the pedestrian when the hood outer panel and the hood inner panel become compressed onto the structural component of the vehicle.

Claims

1. A hood of a vehicle, comprising:

a hood outer panel having an exterior surface and an interior surface opposite the exterior surface;

a hood inner panel connected to the hood outer panel and configured to provide structural support to the hood outer panel, the hood inner panel having an exterior surface facing the interior surface of the hood outer panel and an interior surface; and

a reinforcing patch connected to the interior surface of the hood outer panel between the hood outer panel and the hood inner panel, at a reinforcing location aligned with one or more structural components of the vehicle, the reinforcing patch configured to increase the rigidity and mass of the hood outer panel at the reinforcing location to absorb energy from a pedestrian struck by the vehicle and to reduce impact from the one or more structural components of the vehicle onto the pedestrian when the hood outer panel and the hood inner panel become compressed onto the one or more structural components of the vehicle, the reinforcing patch being unconnected to the hood inner panel.

2. The hood of claim 1, wherein the reinforcing patch is connected to the hood outer panel by an adhesive.

3. The hood of claim 1, wherein the reinforcing location is above a headlight compartment of the vehicle.

4. The hood of claim 1, wherein the reinforcing patch has an irregular shape corresponding to locations of the one or more structural components of the vehicle located underneath the reinforcing location of the hood outer panel.

5. The hood of claim 1, wherein the one or more structural components have a higher rigidity, a higher mass, and a higher resistance to deformation than the hood outer panel and the hood inner panel.

6. The hood of claim 1, wherein the reinforcing patch has a uniform thickness.

7. The hood of claim 1, wherein the reinforcing patch has varying thicknesses based on locations of the one or more structural components of the vehicle located underneath the reinforcing location of the hood outer panel.

8. The hood of claim 1, wherein the hood outer panel and the hood inner panel are made of a different material than the reinforcing patch.

9. A vehicle for improving pedestrian safety, comprising:

a hood having;

a hood outer panel having an exterior surface and an interior surface opposite the exterior surface, and

a hood inner panel connected to the hood outer panel and configured to provide structural support to the hood outer panel, the hood inner panel having an exterior surface facing the interior surface of the hood outer panel and an interior surface; and

a reinforcing patch connected to the interior surface of the hood outer panel between the hood outer panel and the hood inner panel, at a reinforcing location aligned with one or more structural components of the vehicle, the reinforcing patch configured to increase the rigidity and mass of the hood outer panel at the reinforcing location to absorb energy from a pedestrian struck by the vehicle and to reduce impact from the one or more structural components of the vehicle onto the pedestrian when the hood outer panel and the hood inner panel become compressed onto the one or more structural components of the vehicle, the reinforcing patch being unconnected to the hood inner panel.

10. The vehicle of claim 9, wherein the reinforcing patch is connected to the hood outer panel by an adhesive.

11. The vehicle of claim 9, wherein the reinforcing location is above a headlight compartment of the vehicle.

12. The vehicle of claim 9, wherein the reinforcing patch has an irregular shape corresponding to locations of the one or more structural components of the vehicle located underneath the reinforcing location of the hood outer panel.

13. The vehicle of claim 9, wherein the one or more structural components have a higher rigidity, a higher mass, and a higher resistance to deformation than the hood outer panel and the hood inner panel.

14. The vehicle of claim 9, wherein the reinforcing patch has a uniform thickness.

15. The vehicle of claim 9, wherein the reinforcing patch has varying thicknesses based on locations of the one or more structural components of the vehicle located underneath the reinforcing location of the hood outer panel.

16. The vehicle of claim 9, wherein the hood outer panel and the hood inner panel are made of a different material than the reinforcing patch.

17. A hood outer panel assembly of a vehicle, comprising:

a hood outer panel having an exterior surface and an interior surface opposite the exterior surface; and

a reinforcing patch connected to the interior surface of the hood outer panel at a reinforcing location aligned with one or more structural components of the vehicle, the reinforcing patch configured to increase the rigidity and mass of the hood outer panel at the reinforcing location to absorb energy from a pedestrian struck by the vehicle and to reduce impact from the one or more structural components of the vehicle onto the pedestrian when the hood outer panel becomes compressed onto the one or more structural components of the vehicle, the one or more structural components of the vehicle having a higher rigidity, a higher mass, and a higher resistance to deformation than the hood outer panel, the reinforcing patch being unconnected to a hood inner panel.

18. The hood outer panel assembly of claim 17, wherein the reinforcing patch is connected to the hood outer panel by an adhesive.

19. The hood outer panel assembly of claim 17, wherein the reinforcing location is above a headlight compartment of the vehicle.

20. The hood outer panel assembly of claim 17, wherein the reinforcing patch has a uniform thickness.