US20160082919A1 - Hinge for a vehicle hood - Google Patents
Hinge for a vehicle hood Download PDFInfo
- Publication number
- US20160082919A1 US20160082919A1 US14/493,452 US201414493452A US2016082919A1 US 20160082919 A1 US20160082919 A1 US 20160082919A1 US 201414493452 A US201414493452 A US 201414493452A US 2016082919 A1 US2016082919 A1 US 2016082919A1
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- US
- United States
- Prior art keywords
- bracket
- hinge
- set forth
- rod
- hood
- 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
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Classifications
-
- 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
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/0009—Adjustable hinges
-
- 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
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0048—Head
Definitions
- the pedestrian may be thrown against a hood of the vehicle.
- the head of the pedestrian may contact the hood, and more specifically, may contact a rear portion of the hood adjacent a windshield of the vehicle.
- the hood is typically formed of a thin material, such as a thin metal. As such, the hood may deform to absorb energy from the head of the pedestrian to reduce the likelihood of head injury to the pedestrian.
- Vehicles may be tested for a Head Injury Criteria (HIC), which is a biomechanical test to calculate potential of head injury of a pedestrian during impact with a vehicle.
- HIC Head Injury Criteria
- space is limited between the hood and underlying components, e.g., engine components.
- deformation of the hood during impact with the head of the pedestrian may be limited by the underlying components, i.e., the hood may collide with the underlying components during impact with the head of the pedestrian.
- a device may be incorporated into a hinge of the hood to raise the rear portion of the hood when impact with a pedestrian is imminent. This increases the space between the hood and underlying components and reduces the likelihood that the underlying components interfere with the deformation of the hood. This may positively affect the HIC for the vehicle.
- Such devices for raising the rear portion of the hood add complexity to the design of the vehicle.
- these devices may be incorporated into a body structure of the vehicle.
- the body structure must be specifically designed to accommodate the device.
- the body structure of various vehicle models may be different, the body structure of each model must be specifically designed for the device, which adds cost and time to the design of the vehicle.
- Some devices for raising the rear portion of the hood may add complexity to the operation of the hinge, which may increase cost and time to the design of the vehicle and may affect the ease of use and durability of the hinge.
- FIG. 1 is perspective view of a vehicle with a hinge for a hood of the vehicle shown in hidden lines and in an undeployed position;
- FIG. 2 is a perspective view of the vehicle with the hood hinge in a deployed position lifting the hood upwardly;
- FIG. 3 is a side view of the hood hinge in the undeployed position and a portion of the hood along line 3 in FIG. 1 ;
- FIG. 4 is a side view of the hood hinge in the undeployed position and a portion of the hood along line 4 in FIG. 1 ;
- FIG. 5 is an exploded view of the hinge
- FIG. 6 is a side view of the hood hinge and a portion of the hood with the hood hinge in the open position
- FIG. 7 is a side view of the hood hinge in the deployed position and a portion of the hood along line 7 of FIG. 2 ;
- FIG. 8 is a side view of the hood hinge in the deployed position and a portion of the hood along line 8 of FIG. 2 ;
- FIG. 9 is a block diagram of a pedestrian impact system.
- a hinge 10 for a hood 12 of a vehicle 14 includes a first bracket 16 , a member 18 rotatably coupled to the first bracket 16 , and a second bracket 20 rotatably coupled to the member 18 .
- An actuator 22 includes a base 24 connected to the member 18 and a rod 26 moveable relative to the base 24 from a retracted position to an extended position in contact with the second bracket 20 for rotating the second bracket 20 relative to the member 18 .
- the actuator 22 may be activated, i.e., the rod 26 moves from the retracted position to the extended position, when a front-end impact with a pedestrian (not shown) is imminent.
- the rod 26 of the actuator 22 applies an upward force to the second bracket 20 to rotate the second bracket 20 relative to the member 18 and the first bracket 16 .
- the hinge 10 is in an undeployed position, as shown in FIG. 1 , when the rod 26 of the actuator 22 is in the retracted position.
- the hinge 10 moves to a deployed position, as shown in FIG. 2 , e.g., the rear portion 28 of the hood 12 is moved upwardly to increase space between the hood 12 and components underlying the hood 12 .
- HIC head injury criteria
- the complexity of the design of the hinge 10 is reduced by the rod 26 of the actuator 22 contacting the second bracket 20 in the extended position. Such a design eliminates intervening components between the actuator 22 and the second bracket 20 and allows for direct application of force to the second bracket 20 .
- the hinge 10 is modular, i.e., is connected to the rest of the vehicle 14 as a single unit. As such, the hinge 10 may be used with a variety of different models and styles of vehicles 14 with relatively minor design variations to the hinge 10 , e.g., dimensional variations. Extensive design to a body structure of the vehicle 14 is not required to accommodate the hinge 10 .
- the vehicle 14 may be any type of vehicle 14 , for example, an automobile, as shown in the Figures.
- the vehicle 14 may include one or more hinges 10 for supporting the hood 12 , e.g., two hinges 10 as shown in the Figures.
- the hood 12 may rotate about the hinges 10 between a closed position, as shown in FIG. 1 , and an open position, as shown in FIG. 6 .
- the hood 12 which may also be referred to as a bonnet, may be of any suitable configuration.
- the hood 12 may be formed, for example, of metal.
- the hood 12 may be configured to deform upon impact with a pedestrian to absorb energy during the impact to reduce the likelihood 12 of injury to the pedestrian.
- the first bracket 16 is configured to mount the hinge 10 to the rest of the vehicle 14 .
- the first bracket 16 is configured to mount to a structure (not numbered), e.g., a body structure, of the vehicle 14 .
- the first bracket 16 includes a connecting feature 30 for connecting to the structure of the vehicle 14 .
- the connecting feature 30 may be, for example, one or more holes, as shown in the Figures, for receiving a bolt or other fastener that engages the structure of the vehicle 14 .
- the holes may be slotted or may be round.
- the connecting feature may be any suitable feature for connecting the first bracket 16 to the rest of the vehicle 14 .
- the first bracket 16 may include a stop 32 configured to engage the member 18 when the hood 12 /hinge 10 is in the open position, as shown in FIG. 6 .
- the stop 32 may extend transversely to the member 18 , e.g., transversely to the movement of the member 18 as the hood 12 /hinge 10 move from the closed position to the open position.
- the stop 32 may abut the member 18 in the open position, as shown in FIG. 2 .
- the first bracket 16 may be formed of any suitable material.
- the first bracket 16 may be formed of steel.
- the first bracket 16 may be of any suitable shape.
- the second bracket 20 is configured to mount to the hood 12 .
- the second bracket 20 includes a connecting feature 34 for connecting to the hood 12 , e.g., a rear portion 28 of the hood 12 .
- the connecting feature 34 may be, for example, one or more holes, as shown in the Figures, for receiving a bolt 36 or other fastener that engages the hood 12 .
- the holes may be slotted or may be round.
- the connecting feature 34 may be any suitable feature for connecting the second bracket 20 to the hood 12 .
- the second bracket 20 may present a platform 38 for supporting the hood 12 .
- the platform 38 may present a top surface 40 that is elongated and abuts the hood 12 for distributing the weight of the hood 12 on the second bracket 20 .
- a bottom surface 42 of the platform 38 may engage the actuator 22 as the actuator 22 is actuated.
- the rod 26 of the actuator 22 may contact the bottom surface 42 of the platform 38 and apply an upward force to the bottom surface 42 as the rod 26 moves to the extended position to move the hinge 10 to the deployed position, as shown in FIG. 2 .
- the second bracket 20 may be formed of any suitable material.
- the second bracket 20 may be formed of steel.
- the second bracket 20 may be of any suitable shape.
- the member 18 extends between the first bracket 16 and the second bracket 20 and is rotatably coupled to the first bracket 16 and the second bracket 20 .
- the member 18 connects the first bracket 16 to the second bracket 20 .
- the member 18 rotates relative to the first bracket 16 and the second bracket 20 as the hood 12 moves from the closed position, as shown in FIGS. 3 and 4 , to the open position, as shown in FIG. 6 .
- the second bracket 20 rotates relative to the member 18 as the hood 12 moves from the undeployed position, as shown in FIGS. 3 and 4 , to the deployed position, as shown in FIGS. 7 and 8 .
- the member 18 may define a cutout 44 for engaging the stop 32 .
- the cutout 44 is configured to provide clearance between the member 18 and the first bracket 16 as the hinge 10 rotates from the open position to the closed position. A surface of the cutout 44 abuts the stop 32 when the hinge 10 is in the open position, as shown in FIG. 6 .
- the member 18 may be formed of any suitable material.
- the member 18 may be formed of steel.
- the member 18 may be of any suitable shape.
- a rotatable joint 46 is disposed between the first bracket 16 and the member 18 .
- the joint 46 extends from the first bracket 16 to the member 18 .
- the first bracket 16 and the member 18 may each define a hole 48 receiving the joint 46 .
- the joint 46 may be rotatably engaged with each hole 48 .
- a rotatable joint 50 is disposed between the second bracket 20 and the member 18 .
- the joint 50 extends from the second bracket 20 to the member 18 .
- the second bracket 20 and the member 18 may each define a hole 52 receiving the joint 50 .
- the joint 50 may be rotatably engaged with each hole 52 .
- the rod 26 of the actuator 22 is telescopically received in the base 24 of the actuator 22 .
- the rod 26 telescopically extends from the base 24 when the actuator 22 is activated.
- the rod 26 may be in contact with the bottom surface 42 of the second bracket 20 when the rod 26 is in the retracted position, as shown in FIG. 3 .
- the rod 26 may be spaced from the bottom surface 42 when the rod 26 is in the retracted position.
- the member 18 supports the actuator 22 .
- the base 24 of the actuator 22 is fixed to the member 18 .
- a bracket 54 may be fixed to the base 24 and fixed to the member 18 .
- the bracket 54 may be fixed to the actuator 22 and to the base 24 in any suitable manner, e.g., tack welding, fasteners, etc.
- the base 24 may be fixed to the member 18 in any suitable fashion.
- the member 18 may include a reaction surface 56 with the base 24 disposed between the reaction surface 56 and the rod 26 .
- the reaction surface 56 is fixed relative to the actuator 22 adjacent to the actuator 22 for supporting the actuator 22 when the actuator 22 is activated.
- the member 18 may include a ledge 58 adjacent the actuator 22 and presenting the reaction surface 56 .
- the actuator 22 may be a pyrotechnic actuator.
- the actuator 22 may include a pyrotechnic charge (not shown) between the base 24 and the rod 26 .
- the pyrotechnic charge may be ignited by an electric impulse, as set forth further below.
- the pyrotechnic charge is ignited, the pyrotechnic charge combusts to move the rod 26 relative to the base 24 to the extended position.
- the base 24 may define a cylindrical chamber (not shown) and the rod 26 may act as a piston with the pyrotechnic charge between the chamber and the rod 26 .
- a frangible joint 60 may connect the second bracket 20 and the member 18 .
- the frangible joint 60 is spaced from the rotatable joint 50 .
- the frangible joint 60 is configured to retain the hinge 10 in the undeployed position when the actuator 22 is not activated and is configured to break when the actuator 22 is activated to allow the hinge 10 to move to the deployed position, e.g., to allow the second bracket 20 to rotate relative to the member 18 .
- the frangible joint 60 rotatably fixes the second bracket 20 relative to the member 18 when the rod 26 of the actuator 22 is in the refracted position.
- the rod 26 breaks the frangible joint 60 and rotates the second bracket 20 about the member 18 as the rod 26 moves to the extended position.
- the frangible joint 60 may be sized and shaped, and formed of suitable material, to break as the rod 26 moves from the retracted position to the extended position.
- the frangible joint 60 may be a rivet engaging the second bracket 20 and the member 18 .
- the rivet is shown in a pre-assembled state, for example, in FIG. 5 .
- the rivet is shown assembled in FIGS. 3 and 7 .
- the rivet may be sized and shaped, and formed of suitable material, to break as the rod 26 moves from the retracted position to the extended position.
- the frangible joint 60 may be a clinched joint and/or weld, e.g., a metal-to-metal clinched joint and/or weld, between the second bracket 20 and the member 18 configured to break away by the force exerted by the rod 26 of the actuator 22 when the rod moves from the retracted position to the extended position, i.e., when the actuator 22 is activated.
- a clinched joint and/or weld e.g., a metal-to-metal clinched joint and/or weld
- a link 62 may extend from the member 18 to the second bracket 20 .
- the link 62 is spaced from the rotatable joint 50 and extends from the member 18 to the second bracket 20 for limiting rotation of the second bracket 20 relative to the member 18 about the rotatable joint 50 , as shown in FIGS. 7 and 8 .
- the link 62 defines the relative position of the second bracket 20 and the member 18 when the hinge 10 is in the deployed position. In other words, the link 62 counteracts the motion of the rod 26 when the second bracket 20 reaches the deployed position after the actuator 22 is activated.
- the link 62 is connected to the second bracket 20 and the member 18 at connection points 64 .
- the link 62 may be rotatably and/or slideably engaged with the second bracket 20 and the member 18 at the connection points 64 .
- the link 62 is rotatably connected to the second bracket 20 and is slideably and rotatably connected to the member 18 .
- the link 62 may define at least one slot 66 that engages the connection point 64 of the member 18 and/or the second bracket 20 .
- the link 62 shown in FIGS. 5 , 7 , and 8 includes a slot 66 at the member 18 to allow the link 62 to slide, i.e., move translationally, relative to the member 18 as the second bracket 20 rotates relative to the member 18 about the rotational joint 50 .
- a pedestrian impact system 68 may include the hinge 10 , at least one sensor for sensing an impact between the vehicle 14 and a pedestrian, and a controller 70 in communication with the sensor and the actuator 22 for activating the actuator 22 , e.g., for providing an impulse to the pyrotechnic charge, when the sensor senses an impact between the vehicle 14 and a pedestrian.
- the controller 70 is configured to activate the actuator 22 to move the actuator 22 to the extended position when the sensor senses an impact between the vehicle 14 and a pedestrian.
- the pedestrian impact system 68 may be configured to sense the pedestrian prior to impact between the vehicle 14 and the pedestrian, i.e., pre-crash sensing.
- the sensor may be configured to sense impact with a pedestrian. Alternatively or additionally, the sensor may be configured to sense a pedestrian pre-impact. The sensor may be configured to sense conditions of the vehicle 14 .
- the sensor may, for example, be further defined as a plurality of sensors of the same or of different types.
- the plurality of sensors may include a remote object sensor 72 coupled to controller to generate an object signal in the presence of an object, e.g., a pedestrian, within a field of view.
- the remote object sensor 72 may include one or more types of sensors including radar, lidar, and/or a vision system.
- the vision system may include one or more cameras, CCD image sensors, and/or CMOS image sensors, etc.
- the remote object sensor 72 is configured to sense the presence and the distance of an object from the vehicle 14 and may determine characteristics of the detected objects, such as, radar reflective properties, the area, height, and/or width of the object.
- the plurality of sensors may also include a speed sensor 74 for detecting the speed of the vehicle 14 , a trajectory detector 76 to measure the trajectory of the vehicle 14 , e.g., straight, turning, etc., a steering wheel angle sensor 78 for measuring the rotation of the steering wheel, etc.
- the sensors may include any suitable number or type of sensors.
- the controller 70 may be a microprocessor-based controller.
- the sensors are in communication with the controller 70 to communicate data to the controller 70 . Based on the data communicated by the sensors, the controller 70 instructs the actuator 22 to activate.
- the controller 70 and the sensors may be connected to a communication bus 80 , such as a controller area network (CAN) bus, of the vehicle 14 .
- the controller 70 may use information from the communication bus 80 to control the activation of the actuator 22 .
- the actuator 22 may be connected to the controller 70 , as shown in FIG. 9 , or may be connected to the communication bus 80 .
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Abstract
Description
- During a collision between a front end of a vehicle and a pedestrian, the pedestrian may be thrown against a hood of the vehicle. During this movement, the head of the pedestrian may contact the hood, and more specifically, may contact a rear portion of the hood adjacent a windshield of the vehicle. The hood is typically formed of a thin material, such as a thin metal. As such, the hood may deform to absorb energy from the head of the pedestrian to reduce the likelihood of head injury to the pedestrian. Vehicles may be tested for a Head Injury Criteria (HIC), which is a biomechanical test to calculate potential of head injury of a pedestrian during impact with a vehicle.
- In some vehicles, space is limited between the hood and underlying components, e.g., engine components. As such, deformation of the hood during impact with the head of the pedestrian may be limited by the underlying components, i.e., the hood may collide with the underlying components during impact with the head of the pedestrian. In such vehicles, a device may be incorporated into a hinge of the hood to raise the rear portion of the hood when impact with a pedestrian is imminent. This increases the space between the hood and underlying components and reduces the likelihood that the underlying components interfere with the deformation of the hood. This may positively affect the HIC for the vehicle.
- Such devices for raising the rear portion of the hood add complexity to the design of the vehicle. For example, these devices may be incorporated into a body structure of the vehicle. In such a case, the body structure must be specifically designed to accommodate the device. Further, since the body structure of various vehicle models may be different, the body structure of each model must be specifically designed for the device, which adds cost and time to the design of the vehicle. Some devices for raising the rear portion of the hood may add complexity to the operation of the hinge, which may increase cost and time to the design of the vehicle and may affect the ease of use and durability of the hinge.
- As such, there remains an opportunity to develop an improved device for raising a rear portion of the hood when impact with a pedestrian is imminent.
-
FIG. 1 is perspective view of a vehicle with a hinge for a hood of the vehicle shown in hidden lines and in an undeployed position; -
FIG. 2 is a perspective view of the vehicle with the hood hinge in a deployed position lifting the hood upwardly; -
FIG. 3 is a side view of the hood hinge in the undeployed position and a portion of the hood alongline 3 inFIG. 1 ; -
FIG. 4 is a side view of the hood hinge in the undeployed position and a portion of the hood alongline 4 inFIG. 1 ; -
FIG. 5 is an exploded view of the hinge; -
FIG. 6 is a side view of the hood hinge and a portion of the hood with the hood hinge in the open position; -
FIG. 7 is a side view of the hood hinge in the deployed position and a portion of the hood alongline 7 ofFIG. 2 ; -
FIG. 8 is a side view of the hood hinge in the deployed position and a portion of the hood along line 8 ofFIG. 2 ; and -
FIG. 9 is a block diagram of a pedestrian impact system. - With reference to the Figures, wherein like numerals indicate like parts throughout the several views, a
hinge 10 for ahood 12 of avehicle 14 includes afirst bracket 16, amember 18 rotatably coupled to thefirst bracket 16, and asecond bracket 20 rotatably coupled to themember 18. Anactuator 22 includes abase 24 connected to themember 18 and arod 26 moveable relative to thebase 24 from a retracted position to an extended position in contact with thesecond bracket 20 for rotating thesecond bracket 20 relative to themember 18. - As set forth below, the
actuator 22 may be activated, i.e., therod 26 moves from the retracted position to the extended position, when a front-end impact with a pedestrian (not shown) is imminent. By contacting thesecond bracket 20 in the extended position, therod 26 of theactuator 22 applies an upward force to thesecond bracket 20 to rotate thesecond bracket 20 relative to themember 18 and thefirst bracket 16. This forces arear portion 28 of thehood 12 upwardly to increase space between thehood 12 and components (not shown), e.g. engine components, underlying thehood 12. In other words, thehinge 10 is in an undeployed position, as shown inFIG. 1 , when therod 26 of theactuator 22 is in the retracted position. As therod 26 moves to the extended position, thehinge 10 moves to a deployed position, as shown inFIG. 2 , e.g., therear portion 28 of thehood 12 is moved upwardly to increase space between thehood 12 and components underlying thehood 12. This positively affects the head injury criteria (HIC) of thevehicle 14. - The complexity of the design of the
hinge 10 is reduced by therod 26 of theactuator 22 contacting thesecond bracket 20 in the extended position. Such a design eliminates intervening components between theactuator 22 and thesecond bracket 20 and allows for direct application of force to thesecond bracket 20. - Since the
base 24 of theactuator 22 is connected to themember 18 of thehinge 10, thehinge 10 is modular, i.e., is connected to the rest of thevehicle 14 as a single unit. As such, thehinge 10 may be used with a variety of different models and styles ofvehicles 14 with relatively minor design variations to thehinge 10, e.g., dimensional variations. Extensive design to a body structure of thevehicle 14 is not required to accommodate thehinge 10. - The
vehicle 14 may be any type ofvehicle 14, for example, an automobile, as shown in the Figures. Thevehicle 14 may include one ormore hinges 10 for supporting thehood 12, e.g., twohinges 10 as shown in the Figures. As set forth further below, thehood 12 may rotate about thehinges 10 between a closed position, as shown inFIG. 1 , and an open position, as shown inFIG. 6 . - The
hood 12, which may also be referred to as a bonnet, may be of any suitable configuration. Thehood 12 may be formed, for example, of metal. Thehood 12 may be configured to deform upon impact with a pedestrian to absorb energy during the impact to reduce thelikelihood 12 of injury to the pedestrian. - The
first bracket 16 is configured to mount thehinge 10 to the rest of thevehicle 14. For example, thefirst bracket 16 is configured to mount to a structure (not numbered), e.g., a body structure, of thevehicle 14. Thefirst bracket 16 includes a connectingfeature 30 for connecting to the structure of thevehicle 14. The connectingfeature 30 may be, for example, one or more holes, as shown in the Figures, for receiving a bolt or other fastener that engages the structure of thevehicle 14. The holes may be slotted or may be round. Alternatively, the connecting feature may be any suitable feature for connecting thefirst bracket 16 to the rest of thevehicle 14. - The
first bracket 16 may include astop 32 configured to engage themember 18 when thehood 12/hinge 10 is in the open position, as shown inFIG. 6 . Thestop 32 may extend transversely to themember 18, e.g., transversely to the movement of themember 18 as thehood 12/hinge 10 move from the closed position to the open position. Thestop 32 may abut themember 18 in the open position, as shown inFIG. 2 . - The
first bracket 16 may be formed of any suitable material. For example, thefirst bracket 16 may be formed of steel. Thefirst bracket 16 may be of any suitable shape. - The
second bracket 20 is configured to mount to thehood 12. Thesecond bracket 20 includes a connectingfeature 34 for connecting to thehood 12, e.g., arear portion 28 of thehood 12. The connectingfeature 34 may be, for example, one or more holes, as shown in the Figures, for receiving abolt 36 or other fastener that engages thehood 12. The holes may be slotted or may be round. Alternatively, the connectingfeature 34 may be any suitable feature for connecting thesecond bracket 20 to thehood 12. - The
second bracket 20 may present aplatform 38 for supporting thehood 12. Theplatform 38 may present atop surface 40 that is elongated and abuts thehood 12 for distributing the weight of thehood 12 on thesecond bracket 20. Abottom surface 42 of theplatform 38 may engage theactuator 22 as theactuator 22 is actuated. Specifically, therod 26 of theactuator 22 may contact thebottom surface 42 of theplatform 38 and apply an upward force to thebottom surface 42 as therod 26 moves to the extended position to move thehinge 10 to the deployed position, as shown inFIG. 2 . - The
second bracket 20 may be formed of any suitable material. For example, thesecond bracket 20 may be formed of steel. Thesecond bracket 20 may be of any suitable shape. - The
member 18 extends between thefirst bracket 16 and thesecond bracket 20 and is rotatably coupled to thefirst bracket 16 and thesecond bracket 20. Themember 18 connects thefirst bracket 16 to thesecond bracket 20. Themember 18 rotates relative to thefirst bracket 16 and thesecond bracket 20 as thehood 12 moves from the closed position, as shown inFIGS. 3 and 4 , to the open position, as shown inFIG. 6 . Thesecond bracket 20 rotates relative to themember 18 as thehood 12 moves from the undeployed position, as shown inFIGS. 3 and 4 , to the deployed position, as shown inFIGS. 7 and 8 . - The
member 18 may define acutout 44 for engaging thestop 32. Thecutout 44 is configured to provide clearance between themember 18 and thefirst bracket 16 as thehinge 10 rotates from the open position to the closed position. A surface of thecutout 44 abuts thestop 32 when thehinge 10 is in the open position, as shown inFIG. 6 . - The
member 18 may be formed of any suitable material. For example, themember 18 may be formed of steel. Themember 18 may be of any suitable shape. - A rotatable joint 46 is disposed between the
first bracket 16 and themember 18. The joint 46 extends from thefirst bracket 16 to themember 18. With reference toFIG. 5 , thefirst bracket 16 and themember 18 may each define ahole 48 receiving the joint 46. The joint 46 may be rotatably engaged with eachhole 48. - A rotatable joint 50 is disposed between the
second bracket 20 and themember 18. The joint 50 extends from thesecond bracket 20 to themember 18. With reference toFIG. 5 , thesecond bracket 20 and themember 18 may each define ahole 52 receiving the joint 50. The joint 50 may be rotatably engaged with eachhole 52. - The
rod 26 of theactuator 22 is telescopically received in thebase 24 of theactuator 22. With reference toFIGS. 3 and 7 , therod 26 telescopically extends from the base 24 when theactuator 22 is activated. Therod 26 may be in contact with thebottom surface 42 of thesecond bracket 20 when therod 26 is in the retracted position, as shown inFIG. 3 . Alternatively, therod 26 may be spaced from thebottom surface 42 when therod 26 is in the retracted position. - The
member 18 supports theactuator 22. Specifically, thebase 24 of theactuator 22 is fixed to themember 18. For example, abracket 54 may be fixed to thebase 24 and fixed to themember 18. Thebracket 54 may be fixed to theactuator 22 and to the base 24 in any suitable manner, e.g., tack welding, fasteners, etc. Alternatively, thebase 24 may be fixed to themember 18 in any suitable fashion. - The
member 18 may include areaction surface 56 with the base 24 disposed between thereaction surface 56 and therod 26. Thereaction surface 56 is fixed relative to theactuator 22 adjacent to theactuator 22 for supporting theactuator 22 when theactuator 22 is activated. For example, themember 18 may include aledge 58 adjacent theactuator 22 and presenting thereaction surface 56. - The
actuator 22 may be a pyrotechnic actuator. For example, theactuator 22 may include a pyrotechnic charge (not shown) between the base 24 and therod 26. The pyrotechnic charge may be ignited by an electric impulse, as set forth further below. When the pyrotechnic charge is ignited, the pyrotechnic charge combusts to move therod 26 relative to the base 24 to the extended position. In such an embodiment, thebase 24 may define a cylindrical chamber (not shown) and therod 26 may act as a piston with the pyrotechnic charge between the chamber and therod 26. - A frangible joint 60 may connect the
second bracket 20 and themember 18. The frangible joint 60 is spaced from the rotatable joint 50. The frangible joint 60 is configured to retain thehinge 10 in the undeployed position when theactuator 22 is not activated and is configured to break when theactuator 22 is activated to allow thehinge 10 to move to the deployed position, e.g., to allow thesecond bracket 20 to rotate relative to themember 18. In other words, the frangible joint 60 rotatably fixes thesecond bracket 20 relative to themember 18 when therod 26 of theactuator 22 is in the refracted position. When theactuator 22 is activated, therod 26 breaks the frangible joint 60 and rotates thesecond bracket 20 about themember 18 as therod 26 moves to the extended position. The frangible joint 60 may be sized and shaped, and formed of suitable material, to break as therod 26 moves from the retracted position to the extended position. - The frangible joint 60 may be a rivet engaging the
second bracket 20 and themember 18. The rivet is shown in a pre-assembled state, for example, inFIG. 5 . The rivet is shown assembled inFIGS. 3 and 7 . The rivet may be sized and shaped, and formed of suitable material, to break as therod 26 moves from the retracted position to the extended position. Alternatively, or additionally, the frangible joint 60 may be a clinched joint and/or weld, e.g., a metal-to-metal clinched joint and/or weld, between thesecond bracket 20 and themember 18 configured to break away by the force exerted by therod 26 of theactuator 22 when the rod moves from the retracted position to the extended position, i.e., when theactuator 22 is activated. - A
link 62 may extend from themember 18 to thesecond bracket 20. Thelink 62 is spaced from the rotatable joint 50 and extends from themember 18 to thesecond bracket 20 for limiting rotation of thesecond bracket 20 relative to themember 18 about the rotatable joint 50, as shown inFIGS. 7 and 8 . Thelink 62 defines the relative position of thesecond bracket 20 and themember 18 when thehinge 10 is in the deployed position. In other words, thelink 62 counteracts the motion of therod 26 when thesecond bracket 20 reaches the deployed position after theactuator 22 is activated. - The
link 62 is connected to thesecond bracket 20 and themember 18 at connection points 64. Thelink 62 may be rotatably and/or slideably engaged with thesecond bracket 20 and themember 18 at the connection points 64. For example, thelink 62 is rotatably connected to thesecond bracket 20 and is slideably and rotatably connected to themember 18. - The
link 62 may define at least oneslot 66 that engages theconnection point 64 of themember 18 and/or thesecond bracket 20. For example, thelink 62 shown inFIGS. 5 , 7, and 8 includes aslot 66 at themember 18 to allow thelink 62 to slide, i.e., move translationally, relative to themember 18 as thesecond bracket 20 rotates relative to themember 18 about the rotational joint 50. - With reference to
FIG. 9 , apedestrian impact system 68 may include thehinge 10, at least one sensor for sensing an impact between thevehicle 14 and a pedestrian, and acontroller 70 in communication with the sensor and theactuator 22 for activating theactuator 22, e.g., for providing an impulse to the pyrotechnic charge, when the sensor senses an impact between thevehicle 14 and a pedestrian. Thecontroller 70 is configured to activate theactuator 22 to move theactuator 22 to the extended position when the sensor senses an impact between thevehicle 14 and a pedestrian. With reference toFIG. 9 , alternatively or additionally to sensing impact, thepedestrian impact system 68 may be configured to sense the pedestrian prior to impact between thevehicle 14 and the pedestrian, i.e., pre-crash sensing. - The sensor may be configured to sense impact with a pedestrian. Alternatively or additionally, the sensor may be configured to sense a pedestrian pre-impact. The sensor may be configured to sense conditions of the
vehicle 14. The sensor may, for example, be further defined as a plurality of sensors of the same or of different types. For example, the plurality of sensors may include aremote object sensor 72 coupled to controller to generate an object signal in the presence of an object, e.g., a pedestrian, within a field of view. Theremote object sensor 72 may include one or more types of sensors including radar, lidar, and/or a vision system. The vision system may include one or more cameras, CCD image sensors, and/or CMOS image sensors, etc. Theremote object sensor 72 is configured to sense the presence and the distance of an object from thevehicle 14 and may determine characteristics of the detected objects, such as, radar reflective properties, the area, height, and/or width of the object. - With continued reference to
FIG. 9 , the plurality of sensors may also include aspeed sensor 74 for detecting the speed of thevehicle 14, atrajectory detector 76 to measure the trajectory of thevehicle 14, e.g., straight, turning, etc., a steeringwheel angle sensor 78 for measuring the rotation of the steering wheel, etc. In addition or in the alternative, the sensors may include any suitable number or type of sensors. - The
controller 70 may be a microprocessor-based controller. The sensors are in communication with thecontroller 70 to communicate data to thecontroller 70. Based on the data communicated by the sensors, thecontroller 70 instructs theactuator 22 to activate. - The
controller 70 and the sensors may be connected to acommunication bus 80, such as a controller area network (CAN) bus, of thevehicle 14. Thecontroller 70 may use information from thecommunication bus 80 to control the activation of theactuator 22. Theactuator 22 may be connected to thecontroller 70, as shown inFIG. 9 , or may be connected to thecommunication bus 80. - The disclosure has been described in an illustrative manner, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation. Many modifications and variations of the present disclosure are possible in light of the above teachings, and the disclosure may be practiced otherwise than as specifically described.
Claims (22)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/493,452 US9283924B1 (en) | 2014-09-23 | 2014-09-23 | Hinge for a vehicle hood |
RU2015136825A RU2015136825A (en) | 2014-09-23 | 2015-08-28 | HINGE FOR VEHICLE HOOD AND PEDESTRIAN COLLISION SYSTEM |
DE102015115083.2A DE102015115083B4 (en) | 2014-09-23 | 2015-09-08 | Hinge for a vehicle hood |
CN201510579075.4A CN105442965B (en) | 2014-09-23 | 2015-09-11 | Hinge for hood of vehicle |
MX2015013346A MX2015013346A (en) | 2014-09-23 | 2015-09-18 | Hinge for a vehicle hood. |
GB1516765.3A GB2532329A (en) | 2014-09-23 | 2015-09-22 | Hinge for a vehicle hood |
Applications Claiming Priority (1)
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US14/493,452 US9283924B1 (en) | 2014-09-23 | 2014-09-23 | Hinge for a vehicle hood |
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US9283924B1 US9283924B1 (en) | 2016-03-15 |
US20160082919A1 true US20160082919A1 (en) | 2016-03-24 |
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US14/493,452 Active US9283924B1 (en) | 2014-09-23 | 2014-09-23 | Hinge for a vehicle hood |
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US (1) | US9283924B1 (en) |
CN (1) | CN105442965B (en) |
DE (1) | DE102015115083B4 (en) |
GB (1) | GB2532329A (en) |
MX (1) | MX2015013346A (en) |
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US20160193980A1 (en) * | 2013-11-29 | 2016-07-07 | Tk Holdings Inc. | Integrated Active Hinge Mechanism |
US20170217401A1 (en) * | 2016-01-29 | 2017-08-03 | Ford Global Technologies, Llc | Hinge for a vehicle hood |
AT523278B1 (en) * | 2020-06-12 | 2021-07-15 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnic actuator |
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DE102016113684B4 (en) * | 2016-07-25 | 2024-05-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Hinge device with an integrated pedestrian protection for a front hood |
CZ307021B6 (en) * | 2016-09-30 | 2017-11-15 | Brano A.S. | An active bonnet hinge |
DE102019200540A1 (en) * | 2019-01-17 | 2020-07-23 | Zf Friedrichshafen Ag | Hinged vehicle door for a motor vehicle |
JP7143237B2 (en) * | 2019-03-11 | 2022-09-28 | 本田技研工業株式会社 | Hood pop-up structure |
US20220136301A1 (en) * | 2020-10-29 | 2022-05-05 | Magna Closures, Inc. | Active hood hinge assembly |
US20240010161A1 (en) * | 2022-07-05 | 2024-01-11 | Hyundai Motor Company | Active Hood System |
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-
2014
- 2014-09-23 US US14/493,452 patent/US9283924B1/en active Active
-
2015
- 2015-08-28 RU RU2015136825A patent/RU2015136825A/en not_active Application Discontinuation
- 2015-09-08 DE DE102015115083.2A patent/DE102015115083B4/en active Active
- 2015-09-11 CN CN201510579075.4A patent/CN105442965B/en active Active
- 2015-09-18 MX MX2015013346A patent/MX2015013346A/en unknown
- 2015-09-22 GB GB1516765.3A patent/GB2532329A/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160193980A1 (en) * | 2013-11-29 | 2016-07-07 | Tk Holdings Inc. | Integrated Active Hinge Mechanism |
US20170217401A1 (en) * | 2016-01-29 | 2017-08-03 | Ford Global Technologies, Llc | Hinge for a vehicle hood |
US9821755B2 (en) * | 2016-01-29 | 2017-11-21 | Ford Global Technologies, Llc | Hinge for a vehicle hood |
AT523278B1 (en) * | 2020-06-12 | 2021-07-15 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnic actuator |
AT523278A4 (en) * | 2020-06-12 | 2021-07-15 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnic actuator |
Also Published As
Publication number | Publication date |
---|---|
DE102015115083B4 (en) | 2024-04-25 |
CN105442965B (en) | 2019-11-12 |
RU2015136825A (en) | 2017-03-06 |
CN105442965A (en) | 2016-03-30 |
DE102015115083A1 (en) | 2016-03-24 |
MX2015013346A (en) | 2016-03-22 |
US9283924B1 (en) | 2016-03-15 |
GB201516765D0 (en) | 2015-11-04 |
GB2532329A (en) | 2016-05-18 |
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