CN112977314A - Telescopic anticollision institution and vehicle - Google Patents
Telescopic anticollision institution and vehicle Download PDFInfo
- Publication number
- CN112977314A CN112977314A CN202110310373.9A CN202110310373A CN112977314A CN 112977314 A CN112977314 A CN 112977314A CN 202110310373 A CN202110310373 A CN 202110310373A CN 112977314 A CN112977314 A CN 112977314A
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- Prior art keywords
- collision
- vehicle
- telescopic
- crash
- telescopic device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R19/20—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly gas or liquid, e.g. inflatable
- B60R19/205—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly gas or liquid, e.g. inflatable inflatable in the direction of an obstacle upon impending impact, e.g. using air bags
Abstract
The invention provides a telescopic anti-collision mechanism and a vehicle, which relate to the technical field of automobile anti-collision beams and comprise an anti-collision part arranged at the end part of the vehicle, a monitoring device positioned on the anti-collision part and a supporting part fixedly arranged in the vehicle body; the telescopic device is stressed and buffered between the anti-collision component and the supporting component, and can telescopically adjust the distance between the anti-collision component and the supporting component along the collision direction; the control system is connected with the detection device and the telescopic device, controls the telescopic device to push out the anti-collision component before the vehicle is about to collide, and increases a buffering path to reduce the impact of the supporting component; according to the invention, the control system controls the telescopic device, the anti-collision mechanism can be pushed out before the vehicle collides, the buffering distance is increased, the hydraulic system of the telescopic device retracts according to a certain resistance, the collision energy is effectively absorbed, the impact on the longitudinal beam of the vehicle body is reduced, and the vehicle is better protected.
Description
Technical Field
The invention relates to the technical field of automobile anti-collision beams, in particular to a telescopic anti-collision mechanism and a vehicle.
Background
In the field of automobile anticollision, an anticollision beam is a device for reducing the impact energy absorbed when a vehicle is collided, and is composed of a main beam, an energy absorption box and a mounting plate connected with the vehicle, wherein the main beam and the energy absorption box can effectively absorb the impact energy when the vehicle is collided at a low speed, so that the damage of the impact force to a vehicle body longitudinal beam is reduced as much as possible, and the vehicle is protected.
In the conventional passenger vehicle, vehicle body longitudinal beams are rigidly connected with a front bumper assembly, and the collision energy needs to be absorbed through the deformation of the longitudinal beams during collision, but the vehicle body longitudinal beams need a longer stroke and sufficient rigidity to buffer the energy generated by collision, so that the front overhang length of the vehicle is overlong, and meanwhile, part of vehicles have a certain bumper retraction function for effectively buffering and absorbing energy during collision, but the structure inevitably causes the front overhang of the vehicle body to be longer; in addition, at present, more sensing sensors are arranged at the front part of the vehicle in automatic driving, the sensor is easy to damage in collision, and the structure which can effectively protect the front part of the vehicle in collision is particularly important; therefore, there is a need for an anti-collision device that can effectively absorb energy and reduce the impact on the vehicle body without increasing the front suspension length of the vehicle body.
Disclosure of Invention
The invention provides a telescopic anti-collision mechanism and a vehicle, which are used for solving the defect that the front suspension length of the vehicle is too long for anti-collision in the prior art, realizing effective energy absorption of the vehicle during collision under the condition of not increasing the fixed length of the front suspension, further improving the anti-collision performance of the vehicle and protecting the vehicle.
The invention provides a telescopic anticollision mechanism, comprising:
an anti-collision member provided at an end portion of a vehicle for receiving a collision;
the monitoring device is arranged on the anti-collision component and used for monitoring the running condition and the running environment of the vehicle;
the supporting component is fixedly arranged inside the vehicle body and provides strength for the vehicle body;
the telescopic device is arranged between the anti-collision component and the supporting component and can telescopically adjust the distance between the anti-collision component and the supporting component along the collision direction;
and the control system is electrically connected with the detection device and the telescopic device and controls the telescopic device to push out the anti-collision component when the vehicle is about to collide.
According to the telescopic anti-collision mechanism provided by the invention, the telescopic device is a hydraulic oil cylinder system, and the hydraulic oil cylinder system automatically releases pressure according to the borne pressure.
According to the telescopic anti-collision mechanism provided by the invention, the buffer oil cylinder of the hydraulic oil cylinder system retracts according to the preset resistance in a collision compression state.
According to the telescopic anti-collision mechanism provided by the invention, the control system calculates a preset collision energy value according to the data of the detection device;
the control system controls the extending pressure-bearing strength of the telescopic device to be not less than the preset collision energy value when the maximum pressure-bearing strength of the telescopic device is greater than the preset collision energy value; and when the maximum pressure-bearing strength of the telescopic device is smaller than a preset collision energy value, the control system controls the telescopic device to extend out at the maximum strength.
According to the telescopic anti-collision mechanism provided by the invention, a vehicle fixed value is preset in the control system, and the preset collision energy value is calculated by the vehicle fixed value and data of the detection device.
According to the telescopic anti-collision mechanism provided by the invention, the crumple groove is also arranged between the telescopic device and the support part and is used for further buffering after the telescopic device is completely retracted.
According to the telescopic anti-collision mechanism provided by the invention, the anti-collision component is a vehicle bumper.
According to the telescopic anti-collision mechanism provided by the invention, the supporting parts are two vehicle body longitudinal beams arranged along the length direction of the vehicle.
According to the telescopic anti-collision mechanism provided by the invention, the two telescopic devices are symmetrically arranged along the center line of the vehicle and are respectively arranged corresponding to the two vehicle body longitudinal beams.
The invention also provides a vehicle which is provided with any one of the telescopic anti-collision mechanisms.
According to the telescopic anti-collision mechanism provided by the invention, through the monitoring device, the telescopic device arranged between the anti-collision component and the supporting component and the control system for controlling the telescopic device, the anti-collision mechanism can be pushed out before a vehicle collides, so that the buffering distance is increased, meanwhile, the hydraulic system of the telescopic device is used for effectively absorbing the collision energy in a retraction mode according to a certain resistance, so that the impact received by other parts of the vehicle body is reduced, and the vehicle is better protected; the anti-collision mechanism only extends out before collision, so that the energy absorption effect of the automobile body suspension lengthening is realized, the fixed length of the automobile body suspension is not increased, the length of the automobile body can be effectively controlled, and the anti-collision effect is better and obvious.
Further, the vehicle according to the present invention is provided with the telescopic collision avoidance mechanism as described above, and therefore, the vehicle also has the advantages as described above.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a retractable bumper mechanism provided in accordance with the present invention;
FIG. 2 is a schematic view of the working process of a retractable bumper mechanism according to the present invention;
FIG. 3 is an internal connection diagram of a hydraulic ram system provided by the present invention.
Reference numerals:
100: a monitoring device; 101: a camera; 102: a radar;
200: a control system; 201: a processor; 202: a controller;
300: a telescoping device; 301: an electric pump; 302: a first solenoid valve;
303: a second solenoid valve; 310: a telescopic oil cylinder; 320: an energy storage device;
400: an anti-collision component; 401: connecting a bracket; 500: a collapsing tank;
600: a support member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to achieve the above-mentioned efficient energy-absorbing crash without increasing the fixed length of the body suspension, an embodiment of the present invention is described below with reference to fig. 1-3.
The embodiment provides a telescopic anti-collision mechanism, which mainly comprises a monitoring device 100, a control system 200, a telescopic device 300, an anti-collision component 400 and a supporting component 600. The anti-collision component 400 is a protective structure disposed at an end of a vehicle, specifically, a vehicle bumper, and is used for bearing an automobile impact. The support member 600 is an inner structure of a vehicle body, and specifically, two vehicle body longitudinal beams arranged in a vehicle length direction, and mainly provides strength to the vehicle body to resist high-strength collision. The telescopic device 300 is disposed between the collision avoidance part 400 and the support part 600, and the telescopic direction thereof is consistent with the vehicle length direction, i.e. the collision force receiving direction.
In this embodiment, the telescopic device 300 mainly employs a hydraulic cylinder system, which includes a telescopic cylinder 310 and an energy accumulator 320, the collision force directions of the telescopic cylinder 310 are the same, and the energy accumulator 320 is communicated with the telescopic cylinder 310 to provide oil pressure for the telescopic cylinder 310. One end of the telescopic cylinder 310 is fixedly connected with a vehicle bumper. Preferably, in order to ensure stable connection and convenient assembly and disassembly, the telescopic cylinder 310 and the vehicle bumper are installed through a connecting bracket 401. The other end of the telescopic oil cylinder 310 is connected with the vehicle body longitudinal beam, and the telescopic oil cylinder 310 is used for adjusting stress and buffering between a vehicle bumper and the vehicle body longitudinal beam through the oil pressure of the telescopic oil cylinder 310.
The monitoring device 100 is disposed at the upper end of the anti-collision member 400, and is disposed at the front end of the vehicle for monitoring the vehicle speed and obstacles in front of the vehicle, and collecting the driving condition and driving environment information of the vehicle. Specifically, the monitoring device 100 includes a camera 101 and a radar 102, which provide visual and sensing signals for vehicle driving and provide real-time data for the control system 200.
The control system 200 comprises a processor 201 and a controller 202, wherein the processor 201 receives signals of the camera 101 and the radar 102, analyzes and calculates the signals, drives the telescopic device 300 to push out the anti-collision component 400 through the controller 202 before the vehicle collides, and enlarges a buffering path to reduce the impact of the supporting component 600. The processor 201 can calculate a predetermined collision energy value according to the current speed of the vehicle, where the predetermined collision energy value is an impulse value estimated when the current speed of the vehicle collides, and of course, in order to calculate the predetermined collision energy value more accurately, a vehicle fixed value is preset in the control system 200, and the vehicle fixed value is determined by parameters such as the overall mass of the vehicle and the model of the vehicle. In this way, the control system 200 can calculate the energy of the vehicle at the time of the imminent collision and also the energy of the shock absorption required to offset the collision energy.
When a running vehicle is about to collide, the processor 201 calculates a preset collision energy value according to information transmitted by the monitoring device 100, the controller 202 immediately controls the hydraulic oil cylinder system to operate, the energy accumulator 320 supplies oil to the telescopic oil cylinder 310 to provide hydraulic pressure for the telescopic oil cylinder 310, and the telescopic oil cylinder 310 rapidly extends forwards to enable a vehicle bumper to extend out of the vehicle, so that preparation for about collision is made.
It should be noted that the controller 202 may control the telescopic cylinder 310 to fully extend, or may control the extending portion of the telescopic cylinder 310 according to a predetermined collision energy value, so as to ensure that the retraction energy absorption of the telescopic cylinder 310 is not less than the predetermined collision energy value, so as to resist and absorb all collision energy. During collision, the vehicle bumper and the telescopic oil cylinder 310 retract according to the preset resistance of the oil pressure in the telescopic oil cylinder 310, and the telescopic oil cylinder 310 automatically releases pressure according to the borne pressure to gradually buffer and absorb collision energy. The predetermined resistance in the present invention refers to an average force applied to the telescopic cylinder 310 during compression, and the predetermined resistance and an energy value generated by the entire compression stroke of the telescopic cylinder 310 should be not less than a predetermined collision energy value.
Of course, the actual crash energy of the vehicle may be greater than the maximum energy provided by the hydraulic ram system, in which case the telescopic ram 310 extends at maximum intensity, in which case the full retraction of the telescopic ram 310 may counteract the absorption of some of the crash energy, with the remainder of the energy being transferred to the body rails. In order to further reduce the impact on the vehicle body side member, it is preferable that a crush slot 500 is provided between the telescopic cylinder 310 and the vehicle body side member for further buffering after the telescopic cylinder 310 is fully retracted, so as to better protect the vehicle. When the collision is completed, the telescopic cylinder 310 can be controlled to retract in order to facilitate the separation of the vehicle from the collided object.
Fig. 3 shows a specific working principle of the hydraulic cylinder system, wherein the hydraulic cylinder system further includes an electric pump 301, a first solenoid valve 302 and a second solenoid valve 303, and the controller 202 is connected to the electric pump 301, the first solenoid valve 302 and the second solenoid valve 303 respectively. Maximum pressure 25Mpa of electric pump 301:
when the electric pump 301 works, the second electromagnetic valve 303 is powered off, and the telescopic oil cylinder 310 extends out;
the electric pump 301 does not work, the second electromagnetic valve 303 is electrified, and the current of the first electromagnetic valve 302 determines the opening of an orifice, so that the retraction resistance of the telescopic oil cylinder 310 is influenced;
when the electric pump 301 works, the second electromagnetic valve 303 is electrified, the telescopic oil cylinder 310 retracts actively, and the first electromagnetic valve 302 controls the retraction speed by current.
In order to uniformly offset collision energy and ensure uniform stress on the two vehicle body longitudinal beams and stability of the vehicle body, the two telescoping devices 300 may be provided and respectively arranged corresponding to the two vehicle body longitudinal beams.
In another aspect, the present invention provides another embodiment, which provides a vehicle having the structure and functions of the telescopic crash prevention mechanism described above. The vehicle according to the present invention includes the telescopic collision avoidance mechanism as described above, and therefore, all the advantages described above are also provided.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A telescoping crashworthy mechanism, comprising:
an anti-collision member provided at an end portion of a vehicle for receiving a collision;
the monitoring device is arranged on the anti-collision component and used for monitoring the running condition and the running environment of the vehicle;
the supporting component is fixedly arranged inside the vehicle body and provides strength for the vehicle body;
the telescopic device is arranged between the anti-collision component and the supporting component and can telescopically adjust the distance between the anti-collision component and the supporting component along the collision direction;
and the control system is electrically connected with the detection device and the telescopic device and controls the telescopic device to push out the anti-collision component when the vehicle is about to collide.
2. The telescopic crash-proof mechanism as claimed in claim 1, wherein said telescopic means is a hydraulic cylinder system, said hydraulic cylinder system being automatically depressurized according to the pressure applied.
3. The telescoping crash mechanism of claim 2 wherein the cushion cylinder of said hydraulic ram system retracts to a predetermined resistance in the crash pressurized state.
4. The telescoping crashworthy mechanism of claim 3, wherein said control system calculates a predetermined crash energy value based on data from said sensing device;
the control system controls the extending pressure-bearing strength of the telescopic device to be not less than the preset collision energy value when the maximum pressure-bearing strength of the telescopic device is greater than the preset collision energy value; and when the maximum pressure-bearing strength of the telescopic device is smaller than a preset collision energy value, the control system controls the telescopic device to extend out at the maximum strength.
5. The retractable anticollision mechanism according to claim 4, characterized in that a vehicle constant is preset in said control system, and said predetermined collision energy value is calculated from said vehicle constant and data from said detection means.
6. A telescopic crash mechanism according to claim 4, wherein a crash trough is provided between the telescopic means and the support member for further cushioning after the telescopic means has been fully retracted.
7. The telescoping crash mechanism of any one of claims 1-6 wherein said crash feature is a vehicle bumper.
8. The telescoping crash stop mechanism as claimed in any one of claims 1-6, wherein said support members are two body rails disposed along the length of the vehicle.
9. The telescoping crash prevention mechanism of claim 8 wherein said telescoping devices are symmetrically disposed in two along the vehicle centerline and are disposed in correspondence to each of said two body rails.
10. A vehicle characterized by a telescopic crash protection mechanism according to claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310373.9A CN112977314A (en) | 2021-03-23 | 2021-03-23 | Telescopic anticollision institution and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310373.9A CN112977314A (en) | 2021-03-23 | 2021-03-23 | Telescopic anticollision institution and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112977314A true CN112977314A (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110310373.9A Pending CN112977314A (en) | 2021-03-23 | 2021-03-23 | Telescopic anticollision institution and vehicle |
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| Country | Link |
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| CN (1) | CN112977314A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291845A (en) * | 1998-04-07 | 1999-10-26 | Nissan Motor Co Ltd | Movable bumper device for vehicle |
| CN201856723U (en) * | 2010-10-22 | 2011-06-08 | 长沙理工大学 | Active and passive combination vehicle impact energy absorption device |
| CN104276118A (en) * | 2014-10-27 | 2015-01-14 | 重庆市永宏陈记实业有限公司 | Multifunctional graded vibration absorption type automobile bumper device |
| CN107284382A (en) * | 2017-08-03 | 2017-10-24 | 全南县韬寻机械设备开发有限公司 | A kind of automobile buffer beam with shock-absorbing function |
| US10235886B1 (en) * | 2018-01-02 | 2019-03-19 | International Business Machines Corporation | Integral damage control by interaction between a collision detection system and a bumper system |
| KR20190032078A (en) * | 2017-09-19 | 2019-03-27 | 르노삼성자동차 주식회사 | Structure for fixing front radar of vehicle |
| US20190225171A1 (en) * | 2018-01-22 | 2019-07-25 | Will John Temple | Extendable vehicle bumper |
-
2021
- 2021-03-23 CN CN202110310373.9A patent/CN112977314A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291845A (en) * | 1998-04-07 | 1999-10-26 | Nissan Motor Co Ltd | Movable bumper device for vehicle |
| CN201856723U (en) * | 2010-10-22 | 2011-06-08 | 长沙理工大学 | Active and passive combination vehicle impact energy absorption device |
| CN104276118A (en) * | 2014-10-27 | 2015-01-14 | 重庆市永宏陈记实业有限公司 | Multifunctional graded vibration absorption type automobile bumper device |
| CN107284382A (en) * | 2017-08-03 | 2017-10-24 | 全南县韬寻机械设备开发有限公司 | A kind of automobile buffer beam with shock-absorbing function |
| KR20190032078A (en) * | 2017-09-19 | 2019-03-27 | 르노삼성자동차 주식회사 | Structure for fixing front radar of vehicle |
| US10235886B1 (en) * | 2018-01-02 | 2019-03-19 | International Business Machines Corporation | Integral damage control by interaction between a collision detection system and a bumper system |
| US20190225171A1 (en) * | 2018-01-22 | 2019-07-25 | Will John Temple | Extendable vehicle bumper |
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Application publication date: 20210618 |
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