CN104724015A - Hydraulic type initiative anti-collision device - Google Patents
Hydraulic type initiative anti-collision device Download PDFInfo
- Publication number
- CN104724015A CN104724015A CN201510172825.6A CN201510172825A CN104724015A CN 104724015 A CN104724015 A CN 104724015A CN 201510172825 A CN201510172825 A CN 201510172825A CN 104724015 A CN104724015 A CN 104724015A
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- Prior art keywords
- automobile
- portable beam
- portable
- oil cylinder
- walking beam
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- 230000000903 blocking effect Effects 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000034994 death Effects 0.000 description 2
- 231100000517 death Toxicity 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 241001553178 Arachis glabrata Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
-
- 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
- B60R2019/007—Means for adjusting or regulating the crash absorption capacity of the vehicle, e.g. when detecting an impending collision
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a hydraulic type initiative anti-collision device, and belongs to the field of an automobile safety technology. In order to have good anti-impact performance and meanwhile not to increase the overall length of an automobile, the scheme adopts the following technical measures that an anti-collision beam is divided into a fixed beam and a walking beam, and the walking beam is installed on the fixed beam through a connecting rod, a piston and an oil cylinder. The walking beam can conduct extending movement and withdrawing movement relative to the fixed beam, a walking beam withdrawn locking device is arranged between the fixed beam and the moving beam, and the moving beam withdrawn locking device can lock the withdrawn state of the moving beam; a walking beam driving device is arranged between the fixed beam and the walking beam, and the walking beam driving device can drive the walking beam to extend out. The oil cylinder is communicated with an oil tank through a valve, and a discharge small hole is formed in the oil cylinder or the valve. A range unit is installed on the automobile, the range unit is connected with a computer, and the computer is connected with the walking beam withdrawn locking device. The device has the advantages that larger physical collision space can be obtained, and meanwhile the overall length of the automobile is not increased.
Description
Technical field
The invention belongs to a field in automotive safety technology.
Background technology
Automobile on road surface gets more and more, and traffic accident is also more and more frequent.During galloping, due to the effect of inertia of material, automobile and passenger thereof store huge inertia energy.Just in case at this moment automobile generation frontal impact, these energy abrupt releases, will produce huge impulsive force, its consequence is hardly imaginable.Because during frontal crash of vehicles, the speed of a motor vehicle reduces instantaneously, even replys quiescence.Passenger inside the vehicle is in this process, and will bear huge impulsive force forward, will be therefore likely injured.In prior art, in order to when automobile generation head-on crash, extraneous impulsive force can be relaxed, all in the front and back of the longeron of automobile chassis frame, crashproof girder steel and low speed energy-absorption box are installed.Wish that it is when clashing into generation, the distortion leading to metal carrys out apparatus with shock absorbing.Reduce the impulsive force that in car, each occupant bears, as far as possible protection automobile and passenger.But, because crashproof girder steel and low speed energy-absorption box front and back are altogether always apart from 20-30 centimetre of only having an appointment.Therefore, its geometry deformation size is very limited, also very limited to the protection of automobile and passenger.Reason is very simple, and in the dispose procedure of inertia energy, under the prerequisite of same inertia energy, ranging coverage is longer, and the impulsive force of generation is less, otherwise then anti-.From current motor traffic accidents casualty situations, the deformation space of 20-30 centimetre is far from being enough, and the protective capability that it can be formed is very limited.In prior art, not enough for mending this, invent safety air bag.But, automobile is not safety air bag is loaded onto at each seat, moreover the expansion of safety air bag self also has certain danger.Although safety air bag quality is little, speed when launching instantaneously is high, and this velocity of impact is not a peanut for human body.According to the statistics of some national highway safety management departments, while safety air bag often saves 100 passenger life in collision traffic accident, also because of the inappropriate expansion of air bag and the mal seating position of occupant and sitting posture, unfortunately 57 occupants are caused to lose life.Above-mentioned these are all after car accident occurs, and in the accident of particularly clashing in vehicle front, always have injured even one of the main causes of death of so much people.
2013105565066) and the large technical scheme of Safety air bag type anti-corrosion automobile (application number 2013106260775) two application for a patent for invention energy dissipation rod type anti-collision automobile (application number:, the compartment of automobile is movably arranged on vehicle frame, and energy dissipator is installed additional between vehicle frame and compartment, it effectively can reduce the impact of automobile when colliding to driver and conductor.Can effectively protect in compartment everyone.But this technical scheme has its deficiency equally, be exactly must leave crashproof space between compartment and vehicle frame.The overall length of automobile can be strengthened like this, affect the alerting ability of automobile.
Visible, the effort of indented material is also not fully up to expectations, and still have greatly improved space.How to allow automobile when colliding, the inertia energy that passenger in compartment has can obtain release slow as far as possible, so as to reduce impact dynamics that occupant in compartment bears, reduce injures and deaths while do not affect again the alerting ability of automobile, be purpose of the present invention.
Summary of the invention
While having better crashworthiness to make automobile, therefore do not increase again the overall length of automobile, this programme takes following technical measures: collision prevention girders is divided into fixed beam and portable beam, and portable beam is arranged on fixed beam by connecting rod, piston, oil cylinder.Portable beam can stretch out relative to fixed beam and move with retraction, and portable beam retraction blocking device is housed between fixed beam and portable beam, and the retraction state of portable beam can lock by portable beam retraction blocking device.Portable beam actuating device is housed between fixed beam and portable beam, and portable beam actuating device can drive portable beam protruding.Oil cylinder is communicated with fuel tank by valve, and oil cylinder or valve have a discharge orifice.Distance measuring equipment (DME) installed by automobile, and distance measuring equipment (DME) connects computing machine, and computing machine connects portable beam retraction blocking device.
Benefit of the present invention is: portable beam is in retraction state and is collected in automobile at ordinary times, does not hinder the normal traveling of automobile, does not increase automobile overall length.When the data display that computing machine root Ju distance measuring equipment (DME) transmits, when the relative velocity of this car and obstacle above and straight-line distance reach hazard level, judge that automobile is likely about to collide, just press rapidly blas and drive portable beam retraction blocking device releasing activity beam, make portable beam can be protruding in time under portable beam stretches out the driving of actuating device, meet rammer with portable beam.For automobile has won larger time needed for fault offset and physical space in knockout process, automobile and driver and conductor thereof is made to obtain better protection.The portable beam of this programme is in retraction state at ordinary times simultaneously, and it does not increase the overall length of automobile, but can obtain larger physical shock room and time.On the other hand, this device can be installed on the basis of existing collision prevention girders, makes automobile can increase extra, larger guarantee.
Accompanying drawing explanation
Fig. 1 is fluid pressure type initiatively anti-collision automobile, and moved cross beam is in retraction stand-by state schematic diagram.
Fig. 2 is fluid pressure type initiatively anti-collision automobile, and moved cross beam is in and stretches out view.
Fig. 3 is the enlarged diagram of moved cross beam when being in retraction stand-by state.
Fig. 4 is that moved cross beam is in the enlarged diagram stretched out when meeting crash situation.
Fig. 5 is the unitized construction schematic diagrams such as oil cylinder, piston, valve.
In figure: recoil 1, fuel tank 2, spring 3, oil cylinder 4, connecting rod 5, lock hook 6, electromagnet 7, snap close 8, portable beam 9, fixed cross beam 10, fixing longeron 11, piston 12, valve 13.
Detailed description of the invention
Moved cross beam retraction blocking device described in the application, refers to the electromechanical device that the retraction state of portable beam can be locked.The electromechanical device that can complete this task has varied.Meanwhile, the application does not have particular/special requirement to portable beam retraction blocking device, in prior art all can portable beam retraction state locking electromechanical device all be applicable to the present invention use.Such as lock hook bayonet type, bolt-type etc.On the other hand, portable beam retraction blocking device also has a function, is exactly that it can unblank under the instruction of computing machine.Moved cross beam retraction blocking device divides by the office performing unlock instruction can be divided into electromagnetic field type, electric motor type etc. again.On the other hand, when to stretch out actuating device be not spring to moved cross beam of the present invention, portable beam retraction blocking device need not be used.Portable beam retraction blocking device is held a concurrent post by portable beam actuating device.
Moved cross beam described in the application stretches out actuating device, refers to and portable beam can be driven outwardly directed electromechanical device.Portable beam stretches out actuating device form also to be had varied, and it is mainly divided into mechanical type and electromechanical etc.Be the most simply with spring in mechanical type, utilize spring force that portable beam is driven protruding.Mechanical type can also comprise fluid pressure type and vapour-pressure type etc.; Electrodynamic type drives outwards ejection by the form such as tooth bar or chain portable beam primarily of motor.The application stretches out actuating device to portable beam does not have particular/special requirement, all can portable beam outwards drive the device stretched out all be applicable to this programme use.
While having better crashworthiness to make automobile, therefore do not increase again the overall length of automobile, this programme takes following technical measures: collision prevention girders is divided into fixed beam and portable beam, and portable beam of the present invention only includes a crossbeam.Portable beam is arranged on fixed beam by connecting rod, piston, oil cylinder.Portable beam is contained on connecting rod, and the other end of connecting rod is equipped with piston and loads in oil cylinder.Oil cylinder is arranged on fixed beam by various ways such as recoil or front end step are fixing.Such portable beam just can stretch out and retraction campaign by fixed beam relatively, impulsive force can also be passed to fixed beam simultaneously.Portable beam retraction blocking device is housed between fixed beam and portable beam, and the retraction state of portable beam can lock by portable beam retraction blocking device.Portable beam actuating device is housed between fixed beam and portable beam, and portable beam actuating device can drive portable beam protruding.The portable beam actuating device of this example is formed primarily of a spring 3.Spring 3 is in compressive state stored energy at ordinary times, and this state is locked by portable beam retraction blocking device.Once unlock, the fault offset on spring, promote portable beam and outwards shoot out.Just shock can be resisted after portable beam is protruding.The strength of clashing into promotes in-oil cylinder hydraulic oil by connecting rod 5, piston 12, by the aperture backflow fuel tank on oil cylinder or valve.Because aperture is little, create very large resistance to the backflow of hydraulic oil.This resistance is just being used on the consumption of Impact energy, as long as aperture suitable (being such as less than oil-feed aperture) just can make knockout process be cushioned.
Working process of the present invention: under portable beam normal condition be retraction collection and locked as shown in figures 1 and 3 by portable beam retraction blocking device.At this moment the external compression arm-to-arm of spring 3; In the process of moving, the distance of this car and (when the present invention is contained in before automobile) obstacle above constantly measured by distance measuring equipment (DME) to automobile.Distance measuring equipment (DME) passes to computing machine the data recorded, and these data reductions are become the relative velocity of current car and obstacle above by computing machine.Computing machine presses these data of blas process.When data display, the relative velocity of Ben Che and above obstacle and straight-line distance reach the hazard level of program setting.Such as when relative velocity be greater than 10 kilometers/hour, straight-line distance be less than 2 meters time, computing machine sends unlock command to the electromagnet 7 of portable beam retraction blocking device, allows portable beam freely eject.After the electromagnet 7 of portable beam blocking device receives the instruction of computing machine, adhesive drives lock hook 6 to unblank.Lock hook 6 departs from snap close 8, and portable beam 9 is under the driving of portable beam actuating device, namely protruding rapidly under the driving of spring 3, as shown in Figure 2 and Figure 4.Portable beam 9 drivening rod 5, piston 12 in the process of stretching out outwards move together.This motion of piston makes to create negative pressure in oil cylinder 4 and drives valve 13 to open and sucks a large amount of fluid to fuel tank.When portable beam is ejected into stop, in oil cylinder, fill fluid, for buffering collision of closed is got ready; When a crash occurs, huge impact promotes piston 12 by portable beam 9, connecting rod 5 and retreats retraction.This move makes to create huge malleation in oil cylinder, and it drives valve 13 to close.Valve 13 closes rear pressure more greatly, and in-oil cylinder fluid only has by outwards (fuel tank) discharge of the aperture on valve or oil cylinder under huge pressure.Because the bore of aperture is very little, so the exhaust resistance of fluid is very large.This resistance is just being used on the consumption of Impact energy.Knockout process can be cushioned, and automobile and passenger inside the vehicle are better protected.
The definition of above-mentioned hazard level depends primarily on the reaction time of system, and wherein portable beam stretches out the required time is crucial.The faster the better for the speed of response of system, and real reaction speed can be determined by actual measurement.The front of automobile is contained in for the present invention.For guaranteeing safety, before colliding, portable beam must be protruding.Relative distance Y between the barrier foreign object in that is automobile and front, divided by the relative velocity X between current automobile and barrier foreign object, the time T of gained, must be greater than the reaction time Z of system, and this guarantees the safe most important condition.That is when Z is for time fixing, X is larger, and permission distance (danger range under this speed) between automobile and barrier foreign object is longer.Otherwise it is then anti-.This relation describes has different warning distances (or claiming danger range) under different relative velocities.This rule is just applicable to automobile varying environment in use, and it effectively can avoid misoperation.Such as when parking area berth, automobile is very little with the relative speed of a motor vehicle X of periphery object, because Z has been fixing, so allow automobile just very little with the relative distance (danger range under this speed) of barrier foreign object.Can guarantee park be time, very little relative distance Y, portable beam also can not stretch out by mistake.On the other hand, when automobile is with normal speeds, the relative distance that system allows just increases greatly.These characteristics conform to surface conditions.
Portable beam of the present invention stretches out actuating device and can be oil pump.Oil pump is connected oil storage cylinder 4 by oil pipe, oil storage cylinder connected electromagnetic valve, electromagnetic valve connection fuel tank 4 just can pass through piston, connecting rod driving portable beam 9 is protruding.Oil cylinder 4 has an aperture, for discharging interior liquid, such structure can make the present invention not use portable beam retraction blocking device, use simultaneously existing oil cylinder 4, piston 12, connecting rod 5, etc. replace portable beam stretch out actuating device, its effect is the same.
In the moment occurring to clash into, huge impact promotes portable beam, connecting rod and piston to direction motion in oil cylinder, makes in-oil cylinder pressure increase rapidly.Valve or oil cylinder are provided with discharge orifice, and the aperture in this hole is very little, and it produces the flowing of fluid and sends out very large resistance.This resistance is just being used on the consumption of Impact energy, as long as the aperture in this hole is suitable simultaneously, it can make automobile well be cushioned when bearing shock and don't can produce bounce-back.
Because the present invention is initiatively crashproof, so it can be applied in all directions of automobile, be not limited in dead ahead.Such as can be contained in front, rear, left and right either party.Be contained in that side, just coordinate installation distance measuring equipment (DME) to realize that side initiatively crashproof.
Claims (1)
1. fluid pressure type active anti-collision device, it is characterized in that: collision prevention girders is divided into fixed beam and portable beam, portable beam passes through connecting rod, piston, oil cylinder is arranged on fixed beam, portable beam can stretch out relative to fixed beam and move with retraction, portable beam retraction blocking device is housed between fixed beam and portable beam, the retraction state of portable beam can lock by portable beam retraction blocking device, portable beam actuating device is housed between fixed beam and portable beam, portable beam actuating device can drive portable beam protruding, oil cylinder is communicated with fuel tank by valve, oil cylinder or valve have a discharge orifice, distance measuring equipment (DME) installed by automobile, distance measuring equipment (DME) connects computing machine, computing machine connects portable beam retraction blocking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172825.6A CN104724015B (en) | 2015-04-11 | 2015-04-11 | Fluid pressure type active anti-collision device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172825.6A CN104724015B (en) | 2015-04-11 | 2015-04-11 | Fluid pressure type active anti-collision device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104724015A true CN104724015A (en) | 2015-06-24 |
| CN104724015B CN104724015B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510172825.6A Active CN104724015B (en) | 2015-04-11 | 2015-04-11 | Fluid pressure type active anti-collision device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104724015B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253081A (en) * | 2015-10-28 | 2016-01-20 | 胡达广 | Liquid-gas hybrid active anticollision automobile |
| CN107938881A (en) * | 2017-11-27 | 2018-04-20 | 重庆交通大学 | Car carwash buffer |
| CN108284343A (en) * | 2018-04-25 | 2018-07-17 | 温州大学激光与光电智能制造研究院 | Cutters In Mc fail-safe mechanism |
| CN109466487A (en) * | 2018-12-18 | 2019-03-15 | 盐城汇金科技信息咨询服务有限公司 | A kind of anticollision device, collision-prevention device and implementation method of las er-guidance trolley |
| CN109572604A (en) * | 2018-12-06 | 2019-04-05 | 扬州秦禧环保科技有限公司 | A kind of bus crash-proof chassis that can be extended automatically |
| CN111347992A (en) * | 2020-03-30 | 2020-06-30 | 西南科技大学 | Intelligent anti-collision energy absorption system and method for automobile |
| CN114291021A (en) * | 2021-11-25 | 2022-04-08 | 合众新能源汽车有限公司 | Automobile collision control method and device based on active expansion |
| CN114906084A (en) * | 2022-07-14 | 2022-08-16 | 杭州斯格尔液压机械有限公司 | Hydraulic buffer for automobile collision |
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| CN202080223U (en) * | 2011-05-25 | 2011-12-21 | 北汽福田汽车股份有限公司 | Automobile body rear collision buffer reinforcing device and automobile |
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| CN2592443Y (en) * | 2003-01-10 | 2003-12-17 | 黄飞灵 | Autmobile collision buffer protector |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253081A (en) * | 2015-10-28 | 2016-01-20 | 胡达广 | Liquid-gas hybrid active anticollision automobile |
| CN107938881A (en) * | 2017-11-27 | 2018-04-20 | 重庆交通大学 | Car carwash buffer |
| CN108284343A (en) * | 2018-04-25 | 2018-07-17 | 温州大学激光与光电智能制造研究院 | Cutters In Mc fail-safe mechanism |
| CN109572604A (en) * | 2018-12-06 | 2019-04-05 | 扬州秦禧环保科技有限公司 | A kind of bus crash-proof chassis that can be extended automatically |
| CN109466487A (en) * | 2018-12-18 | 2019-03-15 | 盐城汇金科技信息咨询服务有限公司 | A kind of anticollision device, collision-prevention device and implementation method of las er-guidance trolley |
| CN109466487B (en) * | 2018-12-18 | 2020-09-22 | 南京麒麟科学仪器集团有限公司 | Anti-collision device of laser guide trolley and implementation method |
| CN111347992A (en) * | 2020-03-30 | 2020-06-30 | 西南科技大学 | Intelligent anti-collision energy absorption system and method for automobile |
| CN114291021A (en) * | 2021-11-25 | 2022-04-08 | 合众新能源汽车有限公司 | Automobile collision control method and device based on active expansion |
| CN114291021B (en) * | 2021-11-25 | 2024-04-05 | 合众新能源汽车股份有限公司 | Active telescopic-based automobile collision control method and device |
| CN114906084A (en) * | 2022-07-14 | 2022-08-16 | 杭州斯格尔液压机械有限公司 | Hydraulic buffer for automobile collision |
| CN114906084B (en) * | 2022-07-14 | 2022-11-08 | 杭州斯格尔液压机械有限公司 | Hydraulic buffer for automobile collision |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104724015B (en) | 2017-01-04 |
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