Dual action hood latch assembly for a vehicle

• US 8,419,114 B2
• Filed: 08/30/2011
• Issued: 04/16/2013
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Fannon, Joseph P., Zentera, Edward J. Jr.
• Primary Examiner(s): LYJAK, LORI LYNN
• Application Number:
  US13/221,454
• Publication Number:
  US 20130049403A1
• Time in Patent Office: 595 Days
• Field of Search: 296/193.11, 292/DIG.14, 180/69.2, 180/69.21
• US Class Current: 296/193.11
• CPC Class Codes: E05B 79/20 using flexible connections, e.g. Bowden cables
• CPC Class Codes: E05B 81/08 using electromagnets or solenoids
• CPC Class Codes: E05B 81/18 to effect movement of a bolt or bolts E05B81/20 takes precedence
• CPC Class Codes: E05B 81/28 Linearly reciprocating elements
• CPC Class Codes: E05B 83/24 for car bonnets
• CPC Class Codes: Y10T 292/57 Operators with knobs or handles

Abstract

In accordance with exemplary embodiments, a hood latch assembly is provided for a vehicle. The hood latch assembly is configured to be positioned within a forward compartment of a vehicle and to releasably retain a hood of the vehicle in a closed position with a first hood latch and in a partly open position with a second hood latch. A hood latch release mechanism is configured to be positioned within a passenger compartment of the vehicle and be coupled to the hood latch assembly for releasing the first hood latch upon a first operation of the hood latch release mechanism and releasing the second hood latch upon a second operation of the hood latch release mechanism. This provides a dual-action release mechanism that can be operated entirely from within the vehicle.

Claims

1. A vehicle, comprising:

a hood providing closure for a forward compartment of the vehicle;

a hood latch assembly positioned within the forward compartment and configured to releasably retain the hood in a closed position with a first hood latch and in a partly open position with a second hood latch;

a hood latch release mechanism operable from within a passenger compartment of the vehicle and coupled to the hood latch assembly for releasing the first hood latch upon a first operation of the hood latch release mechanism and releasing the second hood latch upon a second operation of the hood latch release mechanism;

wherein, both the first and second hood latches are released from within the passenger compartment of the vehicle allowing the hood to move to an open position.

2. The vehicle of claim 1, wherein the hood latch release mechanism further comprises a release cable coupled to the hood latch assembly and to a release handle within the passenger compartment.

3. The vehicle of claim 2, further comprising a lockout system preventing the release handle from operation.

4. The vehicle of claim 3, wherein the lockout system prevents the release handle from operation unless a shift lever of the vehicle is in a park position.

5. The vehicle of claim 3, wherein the lockout system prevents the release handle from operation unless a brake pedal of the vehicle is depressed.

6. The vehicle of claim 3, wherein the lockout system prevents the release handle from operation unless an engine of the vehicle is off.

7. The vehicle of claim 4, further comprising a hood ajar warning indicator that becomes activated when the hood moves to the partly open position.

8. The vehicle of claim 7, wherein an engine of the vehicle is turned off if a shift lever of the vehicle is taken out of the park position when the hood ajar warning indicator is active.

9. The vehicle of claim 1, wherein the hood latch release mechanism further comprises an electrical release device coupled to the hood latch assembly, the electrical release device being activated by a vehicle controller responsive to receiving a first command to release the first hood latch from within the passenger compartment of the vehicle.

10. The vehicle of claim 9, wherein the electrical release device is activated by the vehicle controller responsive to receiving a second command to release the second hood latch.

11. The vehicle of claim 10, further comprising a lockout system preventing the vehicle controller from activating the electrical release device.

12. The vehicle of claim 11, wherein the lockout system prevents the vehicle controller from activating the electrical release device when the vehicle is moving.

13. The vehicle of claim 11, wherein the lockout system prevents the vehicle controller from activating the electrical release device unless a shift lever of the vehicle is in a park position.

14. The vehicle of claim 11, wherein the lockout system prevents the vehicle controller from activating the electrical release device unless a brake pedal of the vehicle is depressed.

15. The vehicle of claim 1, further comprising a bias element for raising the hood above the first hood latch upon the first operation of the hood latch release mechanism and raising the hood above the second hood latch upon the second operation of the hood latch release mechanism.

16. A system, comprising:

a hood latch assembly configured to be positioned within a forward compartment of a vehicle and to releasably retain a hood of a vehicle in a closed position with a first hood latch and in a partly open position with a second hood latch; and

a hood latch release mechanism configured to be positioned within a passenger compartment of the vehicle and be coupled to the hood latch assembly for releasing the first hood latch upon a first operation of the hood latch release mechanism and releasing the second hood latch upon a second operation of the hood latch release mechanism.

17. The system of claim 16, wherein the hood latch release mechanism further comprises a release cable coupled to the hood latch assembly and to a release handle within the passenger compartment.

18. The system of claim 16, wherein the hood latch release mechanism further comprises an electrical release device coupled to the hood latch assembly, the electrical release device being configured to be activated by a vehicle controller of the vehicle.

19. The system of claim 16, further comprising a lockout system configured to prevent the hood latch release mechanism from operating.

20. A method, comprising:

releasing a first hood latch retaining a hood providing closure for a forward compartment of a vehicle upon a first operation of a hood latch release mechanism positioned within a passenger compartment of the vehicle; and

releasing a second hood latch retaining the hood in a partly open position upon a second operation of the hood latch release mechanism positioned within the passenger compartment of the vehicle;

whereby, both the first and second hood latches are released from within the passenger compartment of the vehicle allowing the hood to move to an open position.