CN113428241A - Engine hood lock mounting structure, vehicle and pedestrian protection control method - Google Patents
Engine hood lock mounting structure, vehicle and pedestrian protection control method Download PDFInfo
- Publication number
- CN113428241A CN113428241A CN202110877163.8A CN202110877163A CN113428241A CN 113428241 A CN113428241 A CN 113428241A CN 202110877163 A CN202110877163 A CN 202110877163A CN 113428241 A CN113428241 A CN 113428241A
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- Prior art keywords
- lock
- lock tongue
- motor
- switch assembly
- tongue switch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B79/00—Mounting or connecting vehicle locks or parts thereof
- E05B79/02—Mounting of vehicle locks or parts thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
Abstract
The invention provides an engine hood lock mounting structure, a vehicle and pedestrian protection control method, and relates to the technical field of automobile safety. The engine hood lock mounting structure comprises a front hood lock, a lock catch, an inner lock tongue switch assembly and an outer lock tongue switch assembly; the inner lock tongue switch assembly and the outer lock tongue switch assembly are both connected with a motor assembly; the motor assembly controls the rotation of the inner lock tongue and the outer lock tongue switch assembly to lock or unlock the front cover lock and the lock catch; the outer lock tongue switch component comprises an outer lock tongue, a first-stage clamping hook and a second-stage clamping hook are formed on the outer lock tongue, the motor component controls the lock catch to move from the first-stage clamping hook to the second-stage clamping hook, lifting of the engine cover plate is achieved, and an energy absorption space is formed to protect safety of pedestrians in collision. The invention also provides a control method for vehicle and pedestrian protection, comprising the mounting structure of the invention. The invention solves the problems of complex structure, large occupied space, long development period and high cost of the traditional lifting device for protecting the engine hood of the pedestrian.
Description
Technical Field
The invention relates to the technical field of automobile safety systems, in particular to an engine hood lock mounting structure, a vehicle and pedestrian protection control method.
Background
With the development of society, automobiles as a means of riding instead of walk began to walk into thousands of households. The safety performance of an automobile as a vehicle is also attracting more and more attention, and the safety of the automobile is not only limited to the safety protection of the passengers in the automobile, but also required to be capable of effectively protecting the safety of the pedestrians once the automobile collides with the pedestrians. Among them, in a traffic accident in which a pedestrian collides with a vehicle, the head damage of the pedestrian accounts for a high percentage. Among the causes of death of pedestrians, head injuries account for 62%, and therefore pedestrian protection is focused on avoiding or mitigating pedestrian head injuries during a person-to-vehicle collision.
The existing vehicle engine covers are generally designed to be low, namely, the distance between the existing vehicle engine covers and parts in an engine compartment is short, particularly at the front end position of the engine cover, so that the appearance of the vehicle is attractive, the existing vehicle engine covers have streamline shapes, and the volume and the wind resistance of the engine compartment of the vehicle can be reduced to a certain extent. Thus, in the closed position of the hood, the hood is located at a close distance from the hard engine parts in the engine compartment. In the event of a collision accident between the front of the vehicle and an injured pedestrian, rider or person, etc., the hard engine parts in the engine compartment may aggravate the injury to the pedestrian, rider or person, etc., because there is not enough buffer space between the engine hood and the hard engine parts.
An effective method adopted in the prior art is to lift the hood. Before the head of the pedestrian contacts with the engine hood, the rear end of the engine hood is lifted to a certain height, so that the space below the engine hood is increased, the head of the pedestrian is prevented from colliding with a hard point below the engine hood, and the head protection effect of the pedestrian is improved. Although the engine hood lifting technology can effectively reduce the head damage of pedestrians, the existing engine hood lifting device generally has the problems of complex structure, large occupied space, long development period and high cost. And in later use, the disposable automobile seat is disposable, so that the automobile using cost of consumers is greatly increased, and the satisfaction degree of users is reduced.
Meanwhile, the existing personal protection regulations and the NCAP evaluation rules of various countries put higher requirements on the pedestrian protection performance of vehicles, and the traditional method is more and more difficult to achieve the target.
In addition, with the rapid development of automobile intelligent technology, the collision target is also identified by using the image pickup and distance measurement technology, and the hood panel is actively opened before the collision. However, the technology has the defects of low response speed to the lifting of the engine hood panel, low response speed in collision accidents and insufficient protection to pedestrians.
Disclosure of Invention
The invention aims to provide an engine hood lock mounting structure, a vehicle and a pedestrian protection control method, which are used for solving the problems of complex structure, large occupied space, long development period and high cost of the existing lifting device of an engine hood for protecting pedestrians and also solving the defects of low lifting response speed of the existing engine hood panel, low reaction speed in collision accidents and insufficient pedestrian protection.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an engine hood lock mounting structure comprises a front hood lock, a lock catch, an inner lock tongue switch assembly and an outer lock tongue switch assembly, wherein the front hood lock is used for being connected with a vehicle body;
the inner lock tongue switch assembly and the outer lock tongue switch assembly are both connected with a motor assembly;
the motor assembly drives the inner lock tongue switch assembly and the outer lock tongue switch assembly to rotate, so that the front cover lock and the lock catch are locked or unlocked;
the outer lock tongue switch component comprises an outer lock tongue, a first-stage clamping hook and a second-stage clamping hook are formed on the outer lock tongue, the motor component drives the lock catch to move from the first-stage clamping hook to the second-stage clamping hook, lifting of the engine cover plate is achieved, and an energy absorption space is formed to protect safety of pedestrians in collision.
Preferably, the inner latch switch assembly comprises a first claw hook, a first inhaul cable and a trigger bar which are sequentially connected, the first claw hook is connected with the motor assembly, and the trigger spring is assembled on the front cover lock through a rotating shaft;
the lock also comprises an inner lock tongue which is assembled on the front cover lock through a rotating shaft and is abutted to the trigger strip.
Preferably, the outer lock tongue switch assembly further comprises a second claw hook, a second inhaul cable and an outer lock tongue handle which are connected in sequence;
the second claw hook is connected with the motor assembly, and an outer lock tongue handle is integrally formed at one end of the outer lock tongue;
the first claw hook is connected with the first end of the first pull rope, and the second claw hook is connected with the second end of the first pull rope;
pulleys are arranged on the second inhaul cable and the third inhaul cable;
the outer lock tongue is assembled on the front cover lock through a rotating shaft.
Preferably, the motor assembly comprises a motor body and a motor rotating shaft which are connected with each other;
a first arc-shaped bulge meshed with the first claw hook and a second arc-shaped bulge meshed with the second claw hook are formed on the motor rotating shaft;
a cable interface is also formed on the motor body;
and a motor rotor is also arranged in the motor body.
Preferably, a through hole is formed in the front cover lock for the first cable to pass through, and a plurality of mounting holes are formed for mounting the front cover lock 1 on the vehicle body.
The invention also provides a vehicle comprising the hood lock mounting structure.
The invention also provides a pedestrian protection control method, which comprises the step of adopting the engine hood lock mounting structure.
Preferably, the pedestrian protection control method includes the steps of:
s1, recognizing the collision target by the vehicle sensor and the signal processor, and when recognizing the collision target, sending an instruction for opening the engine hood lock to the motor assembly, and driving the inner lock tongue switch assembly and the outer lock tongue switch assembly to unlock by the motor assembly;
s2, after the outer lock tongue switch assembly and the inner lock tongue switch assembly are unlocked, the outer lock tongue switch assembly and the inner lock tongue switch assembly rotate rapidly, a lock catch of an engine cover plate bounces and moves upwards, and the lifting process starts;
s3, when the lock catch moves to the edge of the first-level hook of the outer lock tongue switch component, the motor component drives the inner lock tongue switch component to rotate reversely, so that the inner lock tongue is closed, the motor component drives the outer lock tongue switch component to rotate continuously, so that the lock catch moves to the second-level hook, then the motor component drives the outer lock tongue to close, and the engine hood lock clamp is arranged between the first-level hook and the second-level hook of the outer lock tongue switch component, so that the engine hood panel is lifted to form an energy absorption space, the pedestrian safety is protected, and meanwhile, the engine hood panel is prevented from being excessively lifted to block the sight of a driver.
The invention has the beneficial effects that:
1) according to the engine hood lock mounting structure and the vehicle, the first-stage clamping hook and the second-stage clamping hook are formed on the outer lock tongue of the outer lock tongue switch assembly, when the vehicle collides with a pedestrian, the motor assembly controls the lock catch to move from the first-stage clamping hook to the second-stage clamping hook, so that the engine hood plate is lifted upwards to form an energy absorption space, the head safety of the pedestrian is effectively protected, and after the collision is finished, the opened engine hood plate can be manually closed, so that the lock catch returns to the initial position of the first-stage clamping hook from the second-stage clamping hook, and the engine hood lock mounting structure and the vehicle can be repeatedly used. The problem of current protection pedestrian's engine bonnet lifting device exist the structure complicacy, occupation space is big, development cycle is long, with high costs, can not used repeatedly is solved. Meanwhile, when the motor assembly identifies a collision target, the lock catch is controlled to move from the first-level hook to the second-level hook, and then the engine cover plate can be lifted, so that the defects that the lifting response speed of the existing engine cover plate is very low, the reaction speed is low in a collision accident, and the pedestrian protection is insufficient are overcome.
2) The control method for pedestrian protection provided by the invention has the advantages that the first-stage clamping hook and the second-stage clamping hook are arranged on the outer lock tongue of the outer lock tongue switch component of the front cover lock, when a collision target is identified by a vehicle sensor and a signal processor, an instruction for opening the engine cover lock is sent to the motor component when the collision target is identified, and the motor component drives the inner lock tongue switch component and the outer lock tongue switch component to unlock; after the outer lock tongue switch assembly and the inner lock tongue switch assembly are unlocked, the outer lock tongue switch assembly and the inner lock tongue switch assembly rotate rapidly, the lock catch of the engine cover plate bounces and moves upwards, and the lifting process starts; when the hasp moves the edge of the one-level pothook of outer spring bolt switch module, spring bolt switch module antiport in the motor unit drive makes interior spring bolt close, and motor unit drive outer spring bolt switch module continues to rotate, make the hasp move the second grade pothook, then motor unit drive outer spring bolt closes, engine bonnet lock pincers are between the one-level pothook and the second grade pothook of outer spring bolt switch module, make the lifting of engine cover plate form the energy-absorbing space, pedestrian's safety has been protected, prevented simultaneously that the excessive lifting of engine cover plate from sheltering from driver's sight, in automobile safety technical field, practical value has the popularization.
Drawings
FIG. 1 is a schematic structural view of a hood lock mounting structure of the present invention;
FIG. 2 is a schematic structural view of a locking buckle of the internal latch switch assembly;
FIG. 3 is a schematic structural view of an unlocking latch of the inner latch switch assembly;
FIG. 4 is a schematic structural view of a locking buckle of the external tongue switch assembly;
FIG. 5 is a schematic structural view of an unlocking latch of the external latch switch assembly;
FIG. 6 is a first state view during the latch lifting of the hood latch mounting structure of the present invention;
FIG. 7 is a second state view during the latch lifting of the hood latch mounting structure of the present invention;
fig. 8 is a view showing a state where the latch lifting of the hood lock mounting structure of the invention is completed;
fig. 9 is a flowchart of a pedestrian protection control method of the present invention.
Wherein, 1-front cover lock, 101-through hole, 102-mounting hole; 2, locking and buckling; 3-inner dead bolt switch assembly, 301-first claw hook, 302-first cable, 303-touch spring, 304-inner dead bolt; 4-external lock tongue switch component, 401-external lock tongue, 402-first-level hook, 403-second-level hook, 404-second claw hook, 405-second pull rope, 406-external lock tongue handle, 407-third pull rope; 5-motor component, 501-motor body, 502-motor shaft, 503-first arc-shaped bulge, 504-second arc-shaped bulge, 505-cable interface, 506-motor rotor; 6-rotating shaft.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure herein, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings and preferred embodiments. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in fig. 1 to 8, a hood lock mounting structure includes a front hood lock 1 for coupling with a vehicle body, a striker 2 for coupling with a hood panel, an inner latch switch assembly 3, and an outer latch switch assembly 4;
the inner lock tongue switch component 3 and the outer lock tongue switch component 4 are both connected with a motor component 5;
the motor component 5 drives the inner lock tongue switch component 3 and the outer lock tongue switch component 4 to rotate, so that the front cover lock 1 and the lock catch 2 are locked or unlocked;
the outer lock tongue switch component 4 comprises an outer lock tongue 401, a first-stage hook 402 and a second-stage hook 403 are formed on the outer lock tongue 401, the motor component 5 drives the lock catch 2 to move from the first-stage hook 402 to the second-stage hook 403, the lifting of an engine hood panel is achieved, and an energy absorption space is formed to protect the safety of colliding pedestrians.
Form one-level pothook and second grade pothook on the outer spring bolt through at outer spring bolt switch module, when the vehicle bumps with the pedestrian, motor element control hasp removes the second grade pothook from the one-level pothook, make the engine cover plate lifting that makes progress, form the energy-absorbing space, thereby effectively protect the pedestrian's of collision head safety, and bump the completion back, to the engine cover plate that has opened, but manual closing, make the hasp follow the initial position of second grade pothook return to one-level pothook, repeatedly usable, the while has simple structure, occupation space is little, the low advantage of development cost. The problem of current protection pedestrian's engine bonnet lifting device exist the structure complicacy, occupation space is big, development cycle is long, with high costs, can not used repeatedly is solved. Meanwhile, when the motor assembly identifies a collision target, the lock catch is controlled to move from the first-level hook to the second-level hook, and then the engine cover plate can be lifted, so that the defects that the lifting response speed of the existing engine cover plate is very low, the reaction speed is low in a collision accident, and the pedestrian protection is insufficient are overcome.
In this embodiment, the latch is fixedly connected to the hood panel, and the movement of the latch represents the movement of the hood panel.
The inner bolt switch component 3 comprises a first claw hook 301, a first inhaul cable 302 and a trigger bar 303 which are sequentially connected, the first claw hook 301 is connected with the motor component 5, and the trigger spring 303 is assembled on the front cover lock 1 through a rotating shaft 6;
an inner locking tongue 304 is further included, which is fitted to the front cover lock 1 through the rotation shaft 6 and abuts against the trigger bar 303.
The outer latch switch assembly 4 further comprises a second claw hook 404, a second pull cable 405 and an outer latch handle 406 which are connected in sequence;
the second claw hook 404 is connected with the motor assembly 5, and an outer lock bolt handle 406 is integrally formed at one end of the outer lock bolt 401;
the first claw hook 301 is connected with the first pull cable 407, and the other end of the first pull cable is connected with the outer lock tongue 401;
the outer latch 401 is fitted to the front cover lock 1 through the rotation shaft 6.
The motor assembly 5 comprises a motor body 501 and a motor rotating shaft 502 which are connected with each other;
a first arc-shaped bulge 503 engaged with the first claw hook 301 and a second arc-shaped bulge 504 engaged with the second claw hook 404 are formed on the motor rotating shaft 502;
a cable interface 505 is formed on the motor body 501;
a motor rotor 506 is also arranged in the motor body 501.
The front cover lock 1 is formed with a through hole 101 for the first cable 302 to pass through, and a plurality of mounting holes 102 for mounting the front cover lock 1 on the vehicle body.
Fig. 1 is an initial state of the hood lock mounting structure of the present embodiment, that is, both the inner latch switch assembly and the outer latch switch assembly are in the closed state.
Fig. 2 and 3 are schematic structural diagrams of the locking and unlocking lock catch of the internal lock tongue switch assembly respectively. The specific transformation process from fig. 2 to fig. 3 is: when the engine cover plate needs to be opened, the motor system obtains voltage input through a wiring end in a cable interface, the motor rotor drives the motor to rotate, the motor rotating shaft rotates clockwise, the first arc-shaped protrusion on the motor rotating shaft is meshed with the first claw hook, the first inhaul cable pulls the touch spring to rotate around the rotating shaft under the traction of the first claw hook, and the inner lock tongue is unlocked. The shackle is lifted upward during rotation of the inner bolt.
Fig. 4 and 5 are schematic structural views of the locking and unlocking lock catch of the external lock tongue switch assembly respectively. The specific transformation process from fig. 4 to fig. 5 is: when the engine cover plate needs to be opened, the outer lock tongue switch assembly and the inner lock tongue switch assembly work in parallel, namely, a motor system obtains voltage input through a wiring end in a cable interface, a motor rotor drives a motor to rotate, a motor rotating shaft rotates clockwise, a first arc-shaped bulge on the motor rotating shaft is meshed with a first claw hook, a third inhaul cable is pulled by the first claw hook to adjust the direction through the positioning of a pulley, the outer lock tongue is pulled to rotate around a rotating shaft to be unlocked, and a lock catch is lifted upwards in the rotation of the outer lock tongue.
Fig. 6 shows the position between the first-stage hook and the second-stage hook of the outer lock tongue when the lock catch is lifted, at this time, the first claw hook is separated from the first arc-shaped protrusion of the motor rotating shaft, and the first-stage hook and the second-stage hook of the outer lock tongue return to the original position under the elastic action of the rotating shaft of the front cover lock, so as to prevent the lock catch from being lifted to the top of the outer lock tongue to cause the lock catch to lose the constraint completely. The motor rotating shaft rotates anticlockwise, the distance between the second claw hook and the second arc-shaped bulge of the motor rotating shaft is gradually reduced, and the second claw hook and the second arc-shaped bulge start to contact.
Fig. 7 is a state diagram of the first-stage hook and the second-stage hook of the outer lock tongue about to return to the original position under the elastic force of the rotating shaft of the front cover lock, and at the moment, the outer lock tongue returns, and the outer lock tongue handle is driven by the second claw hook to provide supporting force for the lock catch.
Fig. 8 is a state diagram of the engagement between the second arc-shaped protrusion on the motor rotating shaft and the claw hook, at this time, the second inhaul cable is tightened, the direction is adjusted through the positioning of the pulley, the pulling force is applied to the outer lock tongue handle, and therefore the lock catch is locked between the first-stage hook and the second-stage hook of the outer lock tongue to wait for the collision to occur. After collision is finished, the opened engine cover plate can be manually closed, the rotating shaft of the motor reaches the initial position, each switch component is reset, the whole process is reversible, and no extra cost is generated.
Wherein, if the vehicle is powered off after the collision happens, the closing of the engine hood plate is not influenced. After collision, the lock catch moves downwards to enter the inner part of the outer lock tongue, and can enter the inner lock tongue to be directly closed under the condition of severe collision. If the hood panel is not actually closed, the hood panel can be closed by manually pressing down the hood panel, and the whole process is a completely reversible process.
The present embodiment also provides a vehicle including the hood lock mounting structure in the present embodiment.
The embodiment also provides a pedestrian protection control method, which comprises the step of adopting the engine hood lock mounting structure in the embodiment.
As shown in fig. 9, the control method for pedestrian protection in the present embodiment includes the steps of:
s1, recognizing the collision target by the vehicle sensor and the signal processor, and when recognizing the collision target, sending an instruction for opening the engine hood lock to the motor assembly, and driving the inner lock tongue switch assembly and the outer lock tongue switch assembly to unlock by the motor assembly;
s2, after the outer lock tongue switch assembly and the inner lock tongue switch assembly are unlocked, the outer lock tongue switch assembly and the inner lock tongue switch assembly rotate rapidly, a lock catch of an engine cover plate bounces and moves upwards, and the lifting process starts;
s3, when the lock catch moves to the edge of the first-level hook of the outer lock tongue switch component, the motor component drives the inner lock tongue switch component to rotate reversely, so that the inner lock tongue is closed, the motor component drives the outer lock tongue switch component to rotate continuously, so that the lock catch moves to the second-level hook, then the motor component drives the outer lock tongue to close, and the engine hood lock clamp is arranged between the first-level hook and the second-level hook of the outer lock tongue switch component, so that the engine hood panel is lifted to form an energy absorption space, the pedestrian safety is protected, and meanwhile, the engine hood panel is prevented from being excessively lifted to block the sight of a driver.
In this embodiment, the pedestrian protection control method based on the hood lock mounting structure of this embodiment specifically includes: when a vehicle sensor and a signal processor identify a collision target and send an instruction for opening an engine hood lock to a motor assembly, a motor rotating shaft of the motor assembly drives a first claw hook to rotate, an inner lock tongue switch assembly and an outer lock tongue switch assembly are unlocked simultaneously, so that a lock catch is lifted upwards under the elastic force of the rotating shaft, after a certain height is reached, the motor assembly drives the inner lock tongue switch assembly to rotate reversely, so that an inner lock tongue is closed, the motor assembly drives an outer lock tongue of the outer lock tongue switch assembly to rotate continuously, the lock catch moves to a second-stage hook, then the motor assembly drives the outer lock tongue to close, an engine hood lock clamp is arranged between the first-stage hook and the second-stage hook of the outer lock tongue switch assembly, so that an engine hood plate is lifted and absorbs energy to form a space, pedestrians are protected, and the engine hood plate is prevented from being excessively lifted and blocking the sight of a driver. Meanwhile, the motor rotating shaft of the motor component drives the second claw hook to rotate, so that the outer lock tongue handle provides supporting force for the lock catch, necessary support for the engine hood plate in collision is realized, and the engine hood plate is prevented from moving downwards automatically under the action of gravity.
According to the engine hood lock mounting structure and the vehicle, the first-stage clamping hook and the second-stage clamping hook are formed on the outer lock tongue of the outer lock tongue switch assembly, when the vehicle collides with a pedestrian, the motor assembly controls the lock catch to move from the first-stage clamping hook to the second-stage clamping hook, so that the engine hood plate is lifted upwards to form an energy absorption space, the head safety of the pedestrian is effectively protected, and after the collision is finished, the opened engine hood plate can be manually closed, so that the lock catch returns to the initial position of the first-stage clamping hook from the second-stage clamping hook, and the engine hood lock mounting structure and the vehicle can be repeatedly used. The problem of current protection pedestrian's engine bonnet lifting device exist the structure complicacy, occupation space is big, development cycle is long, with high costs, can not used repeatedly is solved. Meanwhile, when the motor assembly identifies a collision target, the lock catch is controlled to move from the first-level hook to the second-level hook, and then the engine cover plate can be lifted, so that the defects that the lifting response speed of the existing engine cover plate is very low, the reaction speed is low in a collision accident, and the pedestrian protection is insufficient are overcome.
The control method for pedestrian protection provided by the invention has the advantages that the first-stage clamping hook and the second-stage clamping hook are arranged on the outer lock tongue of the outer lock tongue switch component of the front cover lock, when a collision target is identified by a vehicle sensor and a signal processor, an instruction for opening the engine cover lock is sent to the motor component when the collision target is identified, and the motor component drives the inner lock tongue switch component and the outer lock tongue switch component to unlock; after the outer lock tongue switch assembly and the inner lock tongue switch assembly are unlocked, the outer lock tongue switch assembly and the inner lock tongue switch assembly rotate rapidly, the lock catch of the engine cover plate bounces and moves upwards, and the lifting process starts; when the hasp moves the edge of the one-level pothook of outer spring bolt switch module, spring bolt switch module antiport in the motor unit drive makes interior spring bolt close, and motor unit drive outer spring bolt switch module continues to rotate, make the hasp move the second grade pothook, then motor unit drive outer spring bolt closes, engine bonnet lock pincers are between the one-level pothook and the second grade pothook of outer spring bolt switch module, make the lifting of engine cover plate form the energy-absorbing space, pedestrian's safety has been protected, prevented simultaneously that the excessive lifting of engine cover plate from sheltering from driver's sight, in automobile safety technical field, practical value has the popularization.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention.
Claims (8)
1. An engine hood lock mounting structure is characterized by comprising a front hood lock (1) connected with a vehicle body, a lock catch (2) connected with an engine hood panel, an inner lock tongue switch component (3) and an outer lock tongue switch component (4);
the inner lock tongue switch component (3) and the outer lock tongue switch component (4) are both connected with a motor component (5);
the front cover lock (1) and the lock catch (2) are locked or unlocked by driving the rotation of the inner lock tongue switch assembly (3) and the outer lock tongue switch assembly (4) through the motor assembly (5);
outer spring bolt switch module (4) are formed with one-level pothook (402) and second grade pothook (403) including outer spring bolt (401) on outer spring bolt (401), move from one-level pothook (402) to second grade pothook (403) through motor element (5) drive hasp (2), realize the lifting of engine cover board, form energy-absorbing space protection and collide pedestrian's safety.
2. The hood lock mounting structure according to claim 1, wherein the inner latch switch assembly (3) includes a first claw hook (301), a first cable (302), and a trigger bar (303) connected in this order, the first claw hook (301) being connected to the motor assembly (5), the trigger bar (303) being fitted to the front hood lock (1) through a rotating shaft (6);
the lock further comprises an inner bolt (304) which is assembled on the front cover lock (1) through a rotating shaft (6) and is abutted to the touch spring (303).
3. The hood lock mounting structure according to claim 2, wherein the outer latch switch assembly (4) further comprises a second claw hook (404), a second cable (405), and an outer latch handle (406) connected in this order;
the second claw hook (404) is connected with the motor assembly (5), and an outer lock tongue handle (406) is integrally formed at one end of the outer lock tongue (401);
the first claw hook (301) is connected with the first end of the third inhaul cable (407), and the other end of the third inhaul cable is connected with the outer lock tongue (401);
pulleys (7) are arranged on the second pull cable (405) and the third pull cable (407);
the outer lock tongue (401) is assembled on the front cover lock (1) through a rotating shaft (6).
4. The hood lock mounting structure according to claim 3, wherein the motor assembly (5) includes a motor body (501) and a motor shaft (502) connected to each other;
a first arc-shaped bulge (503) meshed with the first claw hook (301) and a second arc-shaped bulge (504) meshed with the second claw hook (404) are formed on the motor rotating shaft (502);
a cable interface (505) is formed on the motor body (501);
and a motor rotor (506) is also arranged in the motor body (501).
5. The hood lock mounting structure according to claim 2, wherein the front hood lock (1) is formed with a through hole (101) for the first cable (302) to pass through and a plurality of mounting holes (102) for mounting the front hood lock (1) on the vehicle body.
6. A vehicle characterized by comprising the hood lock mounting structure according to any one of claims 1 to 5.
7. A pedestrian protection control method, characterized by comprising employing the hood lock mounting structure according to any one of claims 1 to 5.
8. The pedestrian protection control method according to claim 7, characterized by comprising the steps of:
s1, recognizing the collision target by the vehicle sensor and the signal processor, and when recognizing the collision target, sending an instruction for opening the engine hood lock to the motor assembly, and driving the inner lock tongue switch assembly and the outer lock tongue switch assembly to unlock by the motor assembly;
s2, after the outer lock tongue switch assembly and the inner lock tongue switch assembly are unlocked, the outer lock tongue switch assembly and the inner lock tongue switch assembly rotate rapidly, a lock catch of an engine cover plate bounces and moves upwards, and the lifting process starts;
s3, when the lock catch moves to the edge of the first-level hook of the outer lock tongue switch component, the motor component drives the inner lock tongue switch component to rotate reversely, so that the inner lock tongue is closed, the motor component drives the outer lock tongue switch component to rotate continuously, so that the lock catch moves to the second-level hook, then the motor component drives the outer lock tongue to close, and the engine hood lock clamp is arranged between the first-level hook and the second-level hook of the outer lock tongue switch component, so that the engine hood panel is lifted to form an energy absorption space, the pedestrian safety is protected, and meanwhile, the engine hood panel is prevented from being excessively lifted to block the sight of a driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877163.8A CN113428241B (en) | 2021-07-31 | 2021-07-31 | Engine hood lock mounting structure, vehicle and pedestrian protection control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877163.8A CN113428241B (en) | 2021-07-31 | 2021-07-31 | Engine hood lock mounting structure, vehicle and pedestrian protection control method |
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| Publication Number | Publication Date |
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| CN113428241A true CN113428241A (en) | 2021-09-24 |
| CN113428241B CN113428241B (en) | 2022-10-11 |
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| CN202110877163.8A Active CN113428241B (en) | 2021-07-31 | 2021-07-31 | Engine hood lock mounting structure, vehicle and pedestrian protection control method |
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| CN (1) | CN113428241B (en) |
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| CN113428241B (en) | 2022-10-11 |
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