CN105292038A - Pedestrian leg protecting device, system and method for vehicle - Google Patents
Pedestrian leg protecting device, system and method for vehicle Download PDFInfo
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- CN105292038A CN105292038A CN201410366438.1A CN201410366438A CN105292038A CN 105292038 A CN105292038 A CN 105292038A CN 201410366438 A CN201410366438 A CN 201410366438A CN 105292038 A CN105292038 A CN 105292038A
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- strut
- vehicle
- passersby
- releasing mechanism
- pedestrian
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Abstract
The invention relates to a pedestrian leg protecting device, system and method for a vehicle. The device comprises a fixed bracket, a supporting rod and a supporting rod releasing mechanism, wherein one end of the fixed bracket is fixedly connected with a body; the other end of the fixed bracket is flexibly connected with the supporting rod; and the supporting rod is movably connected with the supporting rod releasing mechanism and moves downwards when the supporting rod releasing mechanism executes releasing operation so that the gravity center of the supporting rod is lowered. Through the adoptions of the device, the system and the method, the supporting rod moves downwards under effects of the gravity force and a torsional spring force to reduce the height of the supporting rod when the vehicle collides with a pedestrian; therefore, a good supporting effect is exerted on the legs of the pedestrian and the pedestrian injury caused by collision is reduced.
Description
Technical field
The present invention relates to a kind of pedestrian protecting technical field, particularly relate to a kind of device for protecting legs of passersby of vehicle, system and method.
Background technology
Automobile popularize bring to the life of people huge simultaneously easily, also bring the problem of traffic safety.In the collision case of vehicle and pedestrian, because pedestrian is in weak tendency one side, its injury be subject to is also larger.Therefore, traffic safety is not limited only to the safety of driver and crew in car, also comprises the safety of pedestrian.Based on this, China implemented pedestrian protecting standard in 2010, became recommendatory national standard, and the Its Relevant Technology Standards wherein for Car design is described.
In the accident of the automobile impacting pedestrian of the overwhelming majority, what collide at first is pedestrian lower leg and Federal bumper, and therefore the leg of pedestrian very easily comes to harm, and the design of Federal bumper then has vital function to pedestrian protecting.The meeting that present automobile vendor has adopts the mode of installing energy-absorbing foam and bumper/spoiler lower end increase leg strut in the middle part of bumper/spoiler to protect the leg of pedestrian.In collision process, the effect of energy-absorbing foam absorbs collision energy, can reduce the impact that pedestrian's proximal ends of tibia is subject to; The effect of leg support bar supports shin bone lower end, can reduce the side direction bent angle of pedestrian's knee, thus alleviate the injury of clashing into pedestrian.
But for crossing ability, this technical scheme requires that high vehicle is not be suitable for very much, be difficult to alleviate the injury of clashing into and causing pedestrian.
Summary of the invention
The problem that the embodiment of the present invention solves is for high chassis vehicle, how to improve the protective effect of vehicle thigh support pole pair pedestrian lower leg, thus alleviates the injury of collision to pedestrian.
For solving the problem, the embodiment of the present invention provides a kind of device for protecting legs of passersby of vehicle, wherein, comprising: fixed support, strut and strut releasing mechanism; Described support bracket fastened one end is fixedly connected with vehicle body, and the other end and described strut flexibly connect; Described strut is flexibly connected with described strut releasing mechanism, and when described strut releasing mechanism performs releasing operation, moves downward, thus reduce self center of gravity.
Optionally, described fixed support and described strut are rotatably connected.
Optionally, described fixed support and described strut pass through hinge; Described bearing pin is provided with torsion spring.
Optionally, described strut is provided with suppending hole; Described strut releasing mechanism comprises: the first latch coordinated with described suppending hole, and is suitable for the first drive element of mobile described latch.
Optionally, one end of described first latch is provided with the plate spring being suitable for being compressed on by described latch in described suppending hole.
Optionally, described first drive element is electromagnet.
Optionally, described strut comprises: limit connector, and described limit connector is suitable for described strut to be flexibly connected with described strut release gear; Described strut releasing mechanism comprises: limit assembly, and described limit assembly is suitable for when described strut moves downward, by controlling the falling head limiting described strut with the connection of described limit connector.
Optionally, described limit assembly comprises: a pair pin hole; The second latch coordinated with described pin hole, described second latch is between described a pair pin hole; Be suitable for the second drive element shifted out by described second latch between described a pair pin hole.
Optionally, described attaching parts comprises interconnective cable wire and annulus; The cable wire end of described attaching parts is fixedly connected on described strut; The annulus of described attaching parts is sheathed on described the second latch between described a pair pin hole.
Optionally, described second drive element is electromagnet.
For solving the problem, the embodiment of the present invention additionally provides a kind of pedestrian lower leg protection system of vehicle, comprising: camera, velocity radar, treater, and the device for protecting legs of passersby of above-mentioned vehicle; Described camera, is suitable for taking the object of vehicle front, obtains photographic images; Described velocity radar, is suitable for detecting the object of described vehicle front and the relative velocity of vehicle; Described treater, is suitable for, according to described photographic images, identifying the object of described vehicle front; And when the object identifying described vehicle front is pedestrian, and when being greater than predetermined threshold value with the relative velocity of described vehicle, controlling described strut releasing mechanism and disconnect the connection with described strut, described strut is moved downward, thus reduces self center of gravity.
Optionally, described treater is also suitable for: when described strut moves downward, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
For solving the problem, the embodiment of the present invention additionally provides a kind of pedestrian lower leg guard method of vehicle, comprising: the object of vehicle front is taken, obtains photographic images; Detect the object of described vehicle front and the relative velocity of vehicle; According to described photographic images, identify the object of described vehicle front; When the object identifying described vehicle front is pedestrian, and when described relative velocity is greater than predetermined threshold value, control described strut releasing mechanism and disconnect the connection with described strut, described strut is moved downward, thus reduces self center of gravity.
Optionally, described method also comprises: when described strut moves downward, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
Compared with prior art, the technical scheme of the embodiment of the present invention has the following advantages:
The connection with strut is thrown off by strut releasing mechanism, can when colliding, make strut at the moved downward of gravity and torsion spring power, thus reduce the height of strut, thus good supporting role is played to the leg of pedestrian, alleviate the injury of collision to pedestrian.
Further, according to different impact object, by the falling head of limit assembly restriction strut, the effect that maximum support protection is set for different impact object can be played.
In addition, by initiative recognition objects in front and the relative velocity between detection and objects in front, and when eligible, control described strut releasing mechanism and disconnect the connection with strut, serve the effect that the active of pedestrian is protected.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device for protecting legs of passersby of a kind of vehicle in the embodiment of the present invention;
Fig. 2 is the enlarged diagram of the fixed support strut junction connection structure in Fig. 1 shown in a-quadrant;
Fig. 3 is the structural representation of a kind of strut in the embodiment of the present invention;
Fig. 4 is the structural representation of a kind of strut releasing mechanism in the embodiment of the present invention;
Fig. 5 is the structural representation of the releasing mechanism of strut shown in Fig. 4 when being connected with strut;
Fig. 6 is the structural representation of another kind of strut releasing mechanism in the embodiment of the present invention;
Fig. 7 is the structural representation of the releasing mechanism of strut shown in Fig. 6 when being connected with strut;
Fig. 8 is the structural representation of the releasing mechanism of strut shown in Fig. 6 after the first drive element moves the first latch;
Fig. 9 is the shift position schematic diagram of the device for protecting legs of passersby strut of a kind of vehicle of the present invention;
Figure 10 is the structural representation of another kind of strut in the embodiment of the present invention;
Figure 11 is the structural representation of another kind of strut releasing mechanism in the embodiment of the present invention;
Figure 12 is the structural representation of the pedestrian lower leg protection system of a kind of vehicle in the embodiment of the present invention;
Figure 13 is the diagram of circuit of the pedestrian lower leg guard method of a kind of vehicle in the embodiment of the present invention.
Detailed description of the invention
In existing traffic fender guard, some meetings adopt the mode of installing energy-absorbing foam and bumper/spoiler lower end increase leg support bar in the middle part of bumper/spoiler to protect the leg of pedestrian.In collision process, the effect of energy-absorbing foam absorbs collision energy, can reduce the impact that pedestrian's proximal ends of tibia is subject to; The effect of leg support bar supports shin bone lower end, can reduce the side direction bent angle of pedestrian's knee, thus alleviate the injury of clashing into pedestrian.But for crossing ability, this technical scheme requires that high vehicle is very not applicable, because the chassis of this kind of vehicle is often higher, causes the position of bumper/spoiler lower end and pedestrian's tibia contact higher, do not have good supporting role.
In embodiments of the present invention, the connection with strut is thrown off by strut releasing mechanism, can when colliding, make strut at the moved downward of gravity and torsion spring power, thus reduce the height of strut, thus good supporting role is played to the leg of pedestrian, alleviate the injury of collision to pedestrian.
For enabling above-mentioned purpose, the feature and advantage of the embodiment of the present invention more become apparent, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
A kind of embodiment of the present invention provides a kind of device for protecting legs of passersby of vehicle, with reference to Fig. 1, comprising: fixed support 1, strut 2 and strut releasing mechanism 3.One end of described fixed support 1 is fixedly connected with vehicle body (not shown), and the other end and described strut 2 flexibly connect.Described strut 2 is flexibly connected with described strut releasing mechanism 3, and when described strut releasing mechanism 3 performs releasing operation, moves downward, thus reduce self center of gravity.
In the practical application of above-described embodiment, described strut releasing mechanism 3 can be mounted in the inner side of vehicle bumper covering lower end.
In the practical application of above-described embodiment, when normal vehicle operation, described strut 2 keeps coupled condition with described strut releasing mechanism 3, and under being close to bumper/spoiler, keeps the original crossing ability of vehicle.And when vehicle is about to collide, described strut releasing mechanism 3 performs release movement, described strut 2 is thrown off with described strut releasing mechanism 3 and is connected, move downward along gravity direction.When described strut 2 drops to nadir, roughly fair foremost foremost with vehicle bumper of strut 2, during to ensure that clashing into pedestrian occurs, strut 2 can encounter pedestrian's shin bone position, plays a supporting role.
In the concrete enforcement of above-described embodiment, as shown in Figure 1, described strut 2 is provided with two side arm structures (21,22), and is connected by described side arm structure respectively with two fixed supports (11,12).The quantity of described side arm structure and setting position can adjust according to actual needs.
In the concrete enforcement of above-described embodiment, described fixed support 1 is rotatably connected with described strut 2.When described strut 2 is thrown off with described strut releasing mechanism 3, described strut 2 along rotating around its junction with described fixed support 1, thus reaches and reduces the effect highly of described strut 2.Be understandable that; the mode that described fixed support 1 also flexibly connects by other with described strut 2 is connected; the mode that such as spring connection etc. are flexibly connected; as long as can when described strut releasing mechanism 3 performs releasing operation, the connection mode making described strut 2 and described fixed support 1 that relative motion occur all belongs within protection scope of the present invention.
Further, shown in composition graphs 1 and Fig. 2, described fixed support 1 is hinged by bearing pin 4 with described strut 2, and described bearing pin 4 is provided with torsion spring 5.By arranging torsion spring 5 on described bearing pin 4, can throw off at any time with described strut releasing mechanism 3 at described strut 2, eject downwards under the application force that described strut 2 is produced in torsion spring 5 deformation and the effect of gravity, and rapidly drop to default position, thus in time for the shin bone position of pedestrian provides a supporting role.
Described default position is the nadir that strut 2 declines.As shown in Figure 2, the end of described strut 2 and the place that is articulated and connected of described fixed support 1, described fixed support 1 is provided with one section of salient 13.When described strut 2 rotates certain angle, when described side arm structure is flushed with described fixed support 1, described salient 13 can stop described side arm structure, thus serves the effect limiting described strut 2 falling head.Therefore now, strut 2 drops to nadir.In a particular application, can by the angle of inclination of the described fixed support 1 of adjustment, the lowest point that the described strut 2 of corresponding adjustment declines.
In the concrete enforcement of above-described embodiment, shown in composition graphs 3 and Fig. 4, described strut 2 is provided with suppending hole 23.Described strut releasing mechanism 3 comprises: the first latch 31 coordinated with described suppending hole 23, and is suitable for the first drive element 32 of mobile described latch.
Described strut releasing mechanism 3 can be arranged on the inner side of bumper/spoiler lower end.Under normal motoring condition, as shown in Figure 5, described first latch 31 inserts in described suppending hole 23, and described strut 2 is connected with described strut releasing mechanism 3.When described strut releasing mechanism 3 performs releasing operation, by described first drive element 32, described latch is shifted out from described suppending hole 23, thus described strut 2 is thrown off with described strut releasing mechanism 3.
In the concrete enforcement of above-described embodiment, in order to prevent described latch when strut releasing mechanism 3 does not perform releasing operation, come off from described suppending hole 23, thus cause described strut 2 to deviate from, as shown in Figure 6 and Figure 7, the base 35 of described strut releasing mechanism 3 can be arranged a pair first pin holes 33, and plate spring 34 can be set in one end of described first latch 31, utilize the application force of described plate spring 34, described first latch 31 is compressed in described suppending hole 23.The other end of described plate spring 34 is arranged on the base 35 of described strut releasing mechanism 3.
In the concrete enforcement of above-described embodiment, described first drive element 32 can be electromagnet.Shown in composition graphs 1, Fig. 8 and Fig. 9, when the electromagnet energising of described first drive element 32, the application force of described plate spring 34 to described first latch 31 can be overcome, described first latch 31 is extracted from described suppending hole 23 and holds, thus described strut 2 is thrown off with described strut 2 release gear be connected, dotted line position as shown in Figure 9 turns to solid line position.
Another kind of embodiment of the present invention provides a kind of device for protecting legs of passersby of vehicle.With embodiment mentioned above unlike, described strut comprises limit connector, and described limit connector is suitable for described strut to be flexibly connected with described strut release gear.Described strut releasing mechanism comprises: limit assembly, and described limit assembly is suitable for when described strut moves downward, by controlling the falling head limiting described strut with the connection of described limit connector.
For the difference of impact object, can according to the falling head of different objects adjustment strut to play better protective effect.Such as, when impact object is adult, because the height of adult is higher, therefore the position of described strut can be dropped to extreme lower position.And if impact object is children, then the height due to children is shorter, therefore needs the position of described strut to drop to extreme lower position, to play best support protective effect.
In the concrete enforcement of above-described embodiment, shown in Figure 10 and Figure 11, described limit connector comprises interconnective cable wire 24 and annulus 25; Cable wire 24 end of described attaching parts is fixedly connected on described strut 2; The annulus 25 of described attaching parts is sheathed on the second latch 37 between described a pair second pin holes 36.
In the concrete enforcement of above-described embodiment, as shown in figure 11, described limit assembly can comprise: a pair second pin holes 36; The second latch 37 coordinated with described a pair second pin holes 36, described second latch 37 is between described a pair second pin holes 36; Be suitable for the second drive element 38 shifted out by described second latch 37 between described a pair pin hole 13.
In the concrete enforcement of above-described embodiment, as shown in figure 11, in order to prevent described second latch 37 when strut releasing mechanism 3 does not perform releasing operation, come off from described a pair second pin holes 36, thus cause described strut 2 to deviate from, described strut releasing mechanism 3 can be arranged the second plate spring 39, utilize the application force of described second plate spring 39, described second latch 37 is compressed in described a pair second pin holes 36.The other end of described second plate spring 39 is arranged on described strut releasing mechanism 3.
In the concrete enforcement of above-described embodiment, described second drive element 38 can be electromagnet.When the electromagnet energising of described second drive element 38, the application force of described second plate spring 39 to described second latch 37 can be overcome, described second latch 37 is extracted from described a pair second pin holes 36 and holds, due to the stop of described a pair second pin holes 36, the annulus 25 be sheathed on described second latch 37 can be made to throw off with described second latch 37 be connected, even if described attaching parts is thrown off with described strut releasing mechanism 3 and is connected, therefore strut 2 can arrive nadir under the effect of gravity and torsion spring power.
In the concrete enforcement of above-described embodiment, the channel electric controlled of described first drive element 32 and described second drive element 38 is made as: when the height of impact object is higher than preset value, only the first drive element 32 described in conducting, second drive element 38 described in not conducting, although the suppending hole now on strut is thrown off with the first latch 31 and is connected, but the second latch 37 still keeps being connected with described annulus 25, therefore cable wire 24 is held described strut 2 and is limited its falling head.When the height of impact object is lower than described preset value, simultaneously the first drive element 32 and described second drive element 38 described in conducting, now the second latch 37 is thrown off with described annulus 25 and is connected, and strut 2 arrives nadir under the effect of gravity and torsion spring power.
A kind of embodiment of the present invention provides a kind of pedestrian lower leg protection system of vehicle, as shown in figure 12, comprising: camera, velocity radar, treater, and the device for protecting legs of passersby of the vehicle of above-described embodiment.Described camera, is suitable for taking the object of vehicle front, obtains photographic images; Described velocity radar, is suitable for detecting the object of described vehicle front and the relative velocity of vehicle; Described treater, is suitable for, according to described photographic images, identifying the object of described vehicle front; And when the object identifying described vehicle front is pedestrian, and when being greater than predetermined threshold value with the relative velocity of described vehicle, control described strut releasing mechanism and disconnect the connection with described strut, described strut is moved downward, thus reduces the center-of-gravity position of strut self.
In instantiation, described treater is also suitable for: when described strut moves downward along gravity direction, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
A kind of embodiment of the present invention provides a kind of pedestrian lower leg guard method of vehicle, and described method can adopt pedestrian lower leg protection system in above-described embodiment, and as shown in figure 13, described method comprises:
Step S101, takes the object of vehicle front, obtains photographic images;
Step S102, detects the object of described vehicle front and the relative velocity of vehicle;
Step S103, according to described photographic images, identifies the object of described vehicle front;
Step S104, when the object identifying described vehicle front is pedestrian, and when described relative velocity is greater than predetermined threshold value, controls described strut releasing mechanism and disconnects the connection with described strut, described strut is moved downward, thus reduces self center of gravity.
In instantiation, can also comprise after described step S104: when described strut moves downward, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (14)
1. a device for protecting legs of passersby for vehicle, is characterized in that, comprising: fixed support, strut and strut releasing mechanism;
Described support bracket fastened one end is fixedly connected with vehicle body, and the other end and described strut flexibly connect;
Described strut is flexibly connected with described strut releasing mechanism, and when described strut releasing mechanism performs releasing operation, moves downward, thus reduce self center of gravity.
2. the device for protecting legs of passersby of vehicle as claimed in claim 1, it is characterized in that, described fixed support and described strut are rotatably connected.
3. the device for protecting legs of passersby of vehicle as claimed in claim 2, is characterized in that,
Described fixed support and described strut pass through hinge;
Described bearing pin is provided with torsion spring.
4. the device for protecting legs of passersby of vehicle as claimed in claim 1, is characterized in that,
Described strut is provided with suppending hole;
Described strut releasing mechanism comprises:
The first latch coordinated with described suppending hole, and the first drive element being suitable for mobile described latch.
5. the device for protecting legs of passersby of vehicle as claimed in claim 4, it is characterized in that, one end of described first latch is provided with the plate spring being suitable for being compressed on by described latch in described suppending hole.
6. the device for protecting legs of passersby of vehicle as claimed in claim 4, it is characterized in that, described first drive element is electromagnet.
7. the device for protecting legs of passersby of vehicle as claimed in claim 1, is characterized in that,
Described strut comprises: limit connector, and described limit connector is suitable for described strut to be flexibly connected with described strut release gear;
Described strut releasing mechanism comprises: limit assembly, and described limit assembly is suitable for when described strut moves downward, by controlling the falling head limiting described strut with the connection of described limit connector.
8. the device for protecting legs of passersby of vehicle as claimed in claim 7, it is characterized in that, described limit assembly comprises:
A pair pin hole;
The second latch coordinated with described pin hole, described second latch is between described a pair pin hole; Be suitable for the second drive element shifted out by described second latch between described a pair pin hole.
9. the device for protecting legs of passersby of vehicle as claimed in claim 8, is characterized in that,
Described attaching parts comprises interconnective cable wire and annulus;
The cable wire end of described attaching parts is fixedly connected on described strut;
The annulus of described attaching parts is sheathed on described the second latch between described a pair pin hole.
10. the device for protecting legs of passersby of vehicle as claimed in claim 8, it is characterized in that, described second drive element is electromagnet.
The pedestrian lower leg protection system of 11. 1 kinds of vehicles, is characterized in that, comprising: camera, velocity radar, treater, and the device for protecting legs of passersby of vehicle as described in any one of claim 1-10;
Described camera, is suitable for taking the object of vehicle front, obtains photographic images;
Described velocity radar, is suitable for detecting the object of described vehicle front and the relative velocity of vehicle;
Described treater, is suitable for, according to described photographic images, identifying the object of described vehicle front; And when the object identifying described vehicle front is pedestrian, and when being greater than predetermined threshold value with the relative velocity of described vehicle, controlling described strut releasing mechanism and disconnect the connection with described strut, described strut is moved downward, thus reduces self center of gravity.
12. pedestrian lower leg protection systems as claimed in claim 11, it is characterized in that, described treater is also suitable for: when described strut moves downward, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
The pedestrian lower leg guard method of 13. 1 kinds of vehicles, is characterized in that, comprising:
The object of vehicle front is taken, obtains photographic images;
Detect the object of described vehicle front and the relative velocity of vehicle;
According to described photographic images, identify the object of described vehicle front;
When the object identifying described vehicle front is pedestrian, and when described relative velocity is greater than predetermined threshold value, control described strut releasing mechanism and disconnect the connection with described strut, described strut is moved downward, thus reduces self center of gravity.
The pedestrian lower leg guard method of 14. vehicles as claimed in claim 13, be is characterized in that, also comprise: when described strut moves downward, limited the falling head of described strut by the connection controlling described limit assembly and described limit connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366438.1A CN105292038B (en) | 2014-07-29 | 2014-07-29 | The device for protecting legs of passersby of vehicle, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366438.1A CN105292038B (en) | 2014-07-29 | 2014-07-29 | The device for protecting legs of passersby of vehicle, system and method |
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| CN105292038A true CN105292038A (en) | 2016-02-03 |
| CN105292038B CN105292038B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410366438.1A Active CN105292038B (en) | 2014-07-29 | 2014-07-29 | The device for protecting legs of passersby of vehicle, system and method |
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| CN107914661A (en) * | 2017-12-08 | 2018-04-17 | 重庆长安汽车股份有限公司 | A kind of vehicle device for protecting legs of passersby, system and automobile |
| CN108657097A (en) * | 2018-04-25 | 2018-10-16 | 吉利汽车研究院（宁波）有限公司 | A kind of Liftable type front bumper arrangement and its automobile |
| CN111674349A (en) * | 2020-05-12 | 2020-09-18 | 宁波吉利汽车研究开发有限公司 | Four-connecting-rod hinge structure beneficial to protecting head of pedestrian |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105292038B (en) | 2018-01-30 |
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