CA2608775A1 - Pedestrian protection automotive hood hinge assembly - Google Patents
Pedestrian protection automotive hood hinge assembly Download PDFInfo
- Publication number
- CA2608775A1 CA2608775A1 CA002608775A CA2608775A CA2608775A1 CA 2608775 A1 CA2608775 A1 CA 2608775A1 CA 002608775 A CA002608775 A CA 002608775A CA 2608775 A CA2608775 A CA 2608775A CA 2608775 A1 CA2608775 A1 CA 2608775A1
- Authority
- CA
- Canada
- Prior art keywords
- hood
- component
- hinge assembly
- pedestrian
- moving element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/48—Suspension arrangements for wings allowing alternative movements
- E05D15/50—Suspension arrangements for wings allowing alternative movements for opening at either of two opposite edges
- E05D15/507—Suspension arrangements for wings allowing alternative movements for opening at either of two opposite edges by detachment of the hinge from the wing or the frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/42—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and horizontally-sliding guides
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/536—Hoods
Abstract
An automotive hood hinge assembly is adapted to act as a safety device in the event of a collision with a pedestrian. The hood hinge assembly is constructed from a series of linkages and an energy storage actuator that is configured to raise the rear of a vehicle hood in response to a pedestrian collision. The deployed system forms a rigid structure that restrains rearward movement of the hood while providing a vertical motion path and resistive force capable of efficiently dissipating the energy imparted by the pedestrian and therefore significantly lowering injury levels. The linkages are configured to provide conventional rotary opening and closing motion of the hood when the system is in the retracted position and also provide a reset function so that a simple opening and closing motion of the hood when the system is in the deployed position resets it to the retracted position.
Claims (14)
1. An automotive hood hinge assembly adapted to act as a safety device in the event of a collision with a pedestrian, comprising:
a) A hood component adapted to be mounted to a vehicle hood;
b) A body component adapted to be mounted to a vehicle body structure;
c) A main link component adapted to be connected between the hood component and the body component via a first rotatable joint on the hood component and a second rotatable joint guided by a slot on the body component;
d) A control link adapted to be connected between the body component and the main link component via third and fourth rotatable joints;
e) A moving element of an energy storage actuator adapted to be rotatably attached to the main link component adjacent the hood component first rotatable joint;
such that in the event of a collision with a pedestrian, a sensor and control system provide a trigger signal to the energy storage actuator which deploys the moving element and translates the main link component and hood component in a primarily vertical motion dictated by the control link and body component slot geometry so that when a pedestrian's head and upper body strike the raised vehicle hood the energy storage actuator provides a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner so that trauma levels are significantly lowered.
a) A hood component adapted to be mounted to a vehicle hood;
b) A body component adapted to be mounted to a vehicle body structure;
c) A main link component adapted to be connected between the hood component and the body component via a first rotatable joint on the hood component and a second rotatable joint guided by a slot on the body component;
d) A control link adapted to be connected between the body component and the main link component via third and fourth rotatable joints;
e) A moving element of an energy storage actuator adapted to be rotatably attached to the main link component adjacent the hood component first rotatable joint;
such that in the event of a collision with a pedestrian, a sensor and control system provide a trigger signal to the energy storage actuator which deploys the moving element and translates the main link component and hood component in a primarily vertical motion dictated by the control link and body component slot geometry so that when a pedestrian's head and upper body strike the raised vehicle hood the energy storage actuator provides a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner so that trauma levels are significantly lowered.
2. The automotive hood hinge assembly of Claim 1, wherein the slot on the body component and the geometry of the control link are configured to facilitate conventional rotary opening and closing operation of the vehicle hood around a single pivot when the moving element is fully retracted.
3. The automotive hood hinge assembly of Claim 1, wherein the slot on the body component and the geometry of the control link are configured to interact with the main link component and hood component to provide an extremely rigid structure when the moving element is deployed so that the hood hinge assembly prevents the vehicle hood from being driven back through the windshield in the case of a substantial frontal impact.
4. The automotive hood hinge assembly of Claim 1, wherein the energy storage actuator is configured with an internal latch that retains the moving element in a fully retracted position but wherein said latch can be released in response to an electrical trigger signal so that the moving element is deployed a predetermined linear displacement and can then be relatched by compressing the moving element back into a fully retracted position.
5. The automotive hood hinge assembly of Claim 1, wherein the energy storage actuator is a gas spring, the pressure and internal components of which are tuned to return both a required deployment rate and a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner.
6. The automotive hood hinge assembly of Claim 1, wherein the energy storage actuator is a coil spring that is tuned to return both a required deployment rate and a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner.
7. The automotive hood hinge assembly of Claim 1, wherein a reset linkage is provided that comprises two links adapted to be connected between the hood component and the body component to allow normal operation of the hood hinge assembly in both a conventional single pivot operation and during deployment in the event of a collision with a pedestrian but wherein said links force the moving element of the energy storage actuator to be compressed back into its retracted position when the vehicle operator rotates the vehicle hood from fully closed to fully open when the hood hinge assembly is in the deployed position.
8. The automotive hood hinge assembly of Claim 1, wherein a reset arrangement is provided that comprises a cable adapted to be connected between the hood component and the body component allowing normal operation of the hood hinge assembly in both a conventional single pivot operation and during deployment in the event of a collision with a pedestrian but that forces the moving element of the energy storage actuator to be compressed back into its retracted position when the vehicle operator rotates the vehicle hood from fully closed to fully open when the hood hinge assembly is in the deployed position.
9. An automotive hood hinge assembly adapted to act as a safety device in the event of a collision with a pedestrian, comprising:
a) A hood component adapted to be mounted to a vehicle hood;
b) A body component adapted to be mounted to a vehicle body structure;
c) A main link component adapted to be connected between the hood component and the body component via a first rotatable joint on the hood component and a second rotatable joint guided by a slot on the body component;
d) A control link adapted to be connected between the body component and the main link component via third and fourth rotatable joints;
e) A moving element of an energy storage actuator adapted to be rotatably attached to the main link component adjacent the hood component first rotatable joint;
f) A reset linkage consisting of two reset links adapted to be rotatably attached to each other and to be connected between the hood component and the body component via fifth and sixth and seventh rotatable joints;
such that in the event of a collision with a pedestrian, a sensor and control system provide a trigger signal to the energy storage actuator which deploys the moving element and translates the main link component and hood component in a primarily vertical motion dictated by the control link and body component slot geometry so that when a pedestrian's head and upper body strike the raised vehicle hood the energy storage actuator provides a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner so that trauma levels are significantly lowered; and the reset linkage acts passively to allow deployment of the hood hinge assembly but is adapted to force the moving element of the energy storage actuator to be compressed back into its retracted position when the vehicle operator rotates the vehicle hood from fully closed to fully open when the hood hinge assembly is in the deployed state.
a) A hood component adapted to be mounted to a vehicle hood;
b) A body component adapted to be mounted to a vehicle body structure;
c) A main link component adapted to be connected between the hood component and the body component via a first rotatable joint on the hood component and a second rotatable joint guided by a slot on the body component;
d) A control link adapted to be connected between the body component and the main link component via third and fourth rotatable joints;
e) A moving element of an energy storage actuator adapted to be rotatably attached to the main link component adjacent the hood component first rotatable joint;
f) A reset linkage consisting of two reset links adapted to be rotatably attached to each other and to be connected between the hood component and the body component via fifth and sixth and seventh rotatable joints;
such that in the event of a collision with a pedestrian, a sensor and control system provide a trigger signal to the energy storage actuator which deploys the moving element and translates the main link component and hood component in a primarily vertical motion dictated by the control link and body component slot geometry so that when a pedestrian's head and upper body strike the raised vehicle hood the energy storage actuator provides a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner so that trauma levels are significantly lowered; and the reset linkage acts passively to allow deployment of the hood hinge assembly but is adapted to force the moving element of the energy storage actuator to be compressed back into its retracted position when the vehicle operator rotates the vehicle hood from fully closed to fully open when the hood hinge assembly is in the deployed state.
10. The automotive hood hinge assembly of Claim 9, wherein the slot on the body component and the geometry of the control link are configured to facilitate conventional rotary opening and closing operation of the vehicle hood around a single pivot when the moving element is fully retracted.
11. The automotive hood hinge assembly of Claim 9, wherein the slot on the body component and the geometry of the control link are configured to interact with the main link component and hood component to provide an extremely rigid structure when the moving element is deployed so that the hood hinge assembly prevents the vehicle hood from being driven back through the windshield in the case of a substantial frontal impact.
12. The automotive hood hinge assembly of Claim 9, wherein the energy storage actuator is configured with an internal latch that retains the moving element in a fully retracted position but wherein said latch can be released in response to an electrical trigger signal so that the moving element is deployed a predetermined linear displacement and can then be relatched by compressing the moving element back into a fully retracted position.
13. The automotive hood hinge assembly of Claim 9, wherein the energy storage actuator is a gas spring, the pressure and internal components of which are tuned to return both a required deployment rate and a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner.
14. The automotive hood hinge assembly of Claim 9, wherein the energy storage actuator is a coil spring that is tuned to return both a required deployment rate and a resistive force capable of effectively dissipating the pedestrian's energy in a controlled manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2608775A CA2608775C (en) | 2005-09-09 | 2006-07-18 | Pedestrian protection automotive hood hinge assembly |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,518,682 | 2005-09-09 | ||
| CA002518682A CA2518682A1 (en) | 2005-09-09 | 2005-09-09 | Pedestrian protection hood hinge |
| CA2608775A CA2608775C (en) | 2005-09-09 | 2006-07-18 | Pedestrian protection automotive hood hinge assembly |
| PCT/CA2006/001174 WO2007028229A1 (en) | 2005-09-09 | 2006-07-18 | Pedestrian protection automotive hood hinge assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2608775A1 true CA2608775A1 (en) | 2007-03-15 |
| CA2608775C CA2608775C (en) | 2012-07-10 |
Family
ID=39091983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2608775A Active CA2608775C (en) | 2005-09-09 | 2006-07-18 | Pedestrian protection automotive hood hinge assembly |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2608775C (en) |
-
2006
- 2006-07-18 CA CA2608775A patent/CA2608775C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2608775C (en) | 2012-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |