CN206704143U - A kind of active control device for being used to improve commercial vehicle collision security - Google Patents

Abstract

It the utility model is related to commercial car afterbody anticollision device, collision-prevention device, disclose a kind of active control device for being used to improve commercial vehicle collision security, the device has a variety of anti-collisions, can the parameter of active control device reduce harm of the collision to vehicle and pedestrian, impact energy during vehicle rear-end collision is absorbed using spring and damper mating reaction, diverse location is collided and carries out active control, so as to extenuate damage of the vehicle rear-end collision to vehicle and passenger；Simultaneously; the camera of device installation can realize the active control to spring-damper with radar by electric-control system; by actively adjusting the parameter of spring and damper the harm brought is hit to reach to mitigate to greatest extent; and realize radar and camera cooperating using a variety of driving models; pedestrian especially children, building and vehicle etc. are protected, realizes safe driving.

Description

A kind of active control device for being used to improve commercial vehicle collision security

Technical field：

The active safety of commercial car is the utility model is related to, protects pedestrian and vehicle in the process of moving for commercial car Anticollision device, collision-prevention device.

Background technology：

In world wide, 500,000 people being had more than every year and die from traffic accident, 10,000,000 people's injuries are average in traffic accident A just at least people per minute dies from traffic accident, and with the continuous development of China's economic society, the yield of commercial car and Recoverable amount is continuously increased, and highway development, traffic administration fall behind relatively, cause traffic accident incidence to rise year by year, wherein The rear-end collision of commercial car account for significant proportion；Commercial car especially lorry, its bodywork height is higher, and length of wagon is longer, and Passenger vehicle body is highly relatively low, and rear-end collision occurs in motion, and passenger car easily pierces commercial car bottom and produced seriously Consequence, even if installing common protector additional, it is also difficult to realize that diverse location hits and produce maximum protection effect；It is same with this When, because commercial car afterbody is larger to the blind area of driver, the collision to pedestrian and building in motion also happens occasionally, and The anticollision device, collision-prevention device of commercial car also uses the anti-collision structure of passive security always at present.In consideration of it, develop a kind of active of commercial car Safety device is imperative.

Commercial car anticollision device, collision-prevention device has many kinds, but the most anticollisions for passive security of disclosed patent fill both at home and abroad at present Put.The mode that patent CN 205524103U install a bumper additional in heavy goods vehicles afterbody carries out buffering collision of closed, it is therefore intended that anti- Only compact car pierces heavy goods vehicles afterbody, can both prevent compact car and pierce heavy goods vehicles afterbody to cause serious personnel and vehicle to damage Lose, and available buffer hits the intensity for reducing collision.The idea of the patent is preferable, belongs to the category of passive security, and I am to commercialization The analysis of rear-end collision and the summary to commercial car accident occur for car, propose a kind of collision prevention device of commercial car active safety, The device main purpose is under various road conditions to make prison to the travel conditions of vehicle by the way of four kinds of driving models Survey, and the accident to that may occur makes analysis, the rigidity of active control anticollision device, collision-prevention device and damping parameter reduce the danger of collision Evil, realize that multi-angle is protected to pedestrian especially children, vehicle, while can also realize driver's afterbody non-blind area reversing and Turning travel, the collision to pedestrian and building can be substantially reduced.

Utility model content：

The problem of the purpose of this utility model is to overcome prior art to exist, there is provided one kind is touched for improving commercial car The active control device of security is hit, the device, which can be realized, actively reduces damage of the collision to pedestrian and vehicle, and is business Safer driving environment is provided with car.

To achieve the above object, the utility model adopts the following technical scheme that realization：

A kind of active control device for being used to improve commercial vehicle collision security, it is characterised in that including magnetorheological fluid damp Device, electronic control spring, mechanical spring, collision prevention girders, single-chip microcomputer electric-control system, radar system, camera, slidable afterbody crossbeam； Wherein magnetic rheological liquid damper is connected with electronic control spring, cooperates at work；Collision prevention girders are used for receiving extraneous shock；It is single Piece Electrical Control system is used for receiving effective pedestrian and information of vehicles and then the control magnetic current of radar and the camera collection The damping of liquescent damper and the rigidity of electronic control spring；Slidable afterbody crossbeam is used for installing spring and bears load.

Use two described in technical scheme can realize multiple degrees of freedom regulation magnetic rheological liquid damper and two with The electronic control spring that magnetic rheological liquid damper is used cooperatively, the horizontal symmetrical embedded afterbody crossbeam of two of which electronic control spring, its The inside of afterbody crossbeam is fixed in one end, and the other end is hinged with pulley, and pulley is hinged with one end of magnetic rheological liquid damper simultaneously, Being used cooperatively for the two is realized, such anticollision device, collision-prevention device can realize multi-angle collision prevention function, can when different angle collision occurs Produce different anti-collision effects；When colliding, electronic control spring by compression distance be less than 30 millimeters during its rigidity most Small, damper damping is maximum, and when electronic control spring compression distance is more than or equal to 30 millimeters, electronic control spring starts gradually to increase it Rigidity, damper start to be gradually reduced its damping, and the quick change that the angle of damper stress so can be achieved causes the electricity Control spring to move to compression direction, extend strong collision time.

It is steel construction inside collision prevention girders described in technical scheme, has elastomeric material, its inner top side in its outer surface The mechanical spring is fixedly mounted in midpoint, can make the multi-direction movement of collision prevention girders, at the same mechanical spring can reduce device into This；Lower end is provided with two pivoting supports, is hinged magnetic current liquid variable damping device, is used for installing camera and thunder on the outside of collision prevention girders Reach.

There is one section of slide rail at slidable afterbody crossbeam both ends described in technical scheme, and two-end structure is symmetrical, left end and The electronic control spring of right-hand member two is respectively embedded into slide rail, can transverse movement.

Three cameras of use described in technical scheme, three diverse locations being respectively arranged on the outside of collision prevention girders, its In one be installed near collision prevention girders centre position, two other is respectively arranged in the left and right both ends of collision prevention girders, and three installations Position is horizontal conllinear；In vehicle traveling process, can gather respectively vehicle on the left of afterbody, among afterbody and on the right side of afterbody, Pedestrian and building information, and by this information transfer to single-chip microcomputer electric-control system, at the same these three cameras can also realize by Three main real-time pictures for influenceing driver's driving visions are transferred to driving on the left of vehicle tail, on the right side of afterbody centre and afterbody Room, eliminate commercial car afterbody blind area so that driver in reversing or turning, avoid to pedestrian especially children and its The collision of his vehicle.

1 radar of use described in technical scheme, peace turn the centre position on the outside of collision prevention girders, and its effect is mainly used to The distance and relative velocity of afterbody vehicle and the car are measured when vehicle travels, the data that the radar obtains only are needed as control The foundation of camera switch, electronic control spring rigidity and magnetic rheological liquid damper damping size, without being transferred to driver's cabin.

Radar and camera described in technical scheme are used cooperatively, and are divided into four kinds of mode of operations, are highway respectively Mode of operation, the work of reversing of the complex road conditions such as travel operation pattern, the mode of operation of national highway or provincial highway, city or rural area Operation mode；When in highway driving mode, when radar measures rear car and is less than or equal to 3 meters away from the tailstock portion, and relatively Speed is more than or equal to 20 kilometers/hour, and camera is just started working, and otherwise camera does not work, it is possible to reduce vehicle electric energy Loss；When in national highway or provincial highway driving mode, relatively low during the relatively high speed traveling of speed, radar measures rear car away from the tailstock When portion is less than or equal to 2 meters, and relative speed is more than or equal to 10 kilometers/hour, and camera is just started working, otherwise camera Do not work, be so more beneficial for vehicle energy saving；When in city or rural pattern, because road conditions are complex, radar and take the photograph As head is all turned on, and so that driver refers to when the picture that camera is gathered passes to driving, avoids wounding and pedestrian or hit Hit bicycle or other vehicles；When in reversing mode of operation when, camera and radar are fully open, for protect pedestrian, Vehicle and building.

3 cameras described in technical scheme gather the information of vehicles of the tailstock portion diverse location, under 3 kinds of patterns when When radar measures rear car and front truck spacing less than or equal to 1 meter, the big of afterbody vehicle area is collected according to each camera It is small to judge the position of afterbody vehicle, when the vehicle that will be knocked into the back is located at commercial car afterbody centre position, the electricity of control left and right two Control spring and damper stiffness and damp in the same size；When the vehicle that will be knocked into the back is located at the left side of commercial car afterbody, left side Spring rate and damper damping is ascending starts with collision to rapid increase, and the damping of right side spring rate and damper Size is always maintained at maximum, can so effectively improve the buffering effect of left side collision, reduce the harm of collision；When will chase after When the vehicle of tail is located at the right side of commercial car afterbody, right side spring rate and damper damping ascending start to fast with collision Speed increase, and left side spring rate and the damping size of damper are always maintained at maximum, can so effectively improve right side and touch The buffering effect hit, reduce the harm of collision；Now the rigidity of the electronic control spring of left and right ends and damper and damping size not Unanimously.

Compared with prior art, the beneficial effects of the utility model are：

1, existing commercial car anticollision can only lean on Anti-collision materials or the energy-absorbing of structure and be hit to extenuate, and the utility model uses Spring adds damper to absorb Impact energy buffering collision of closed intensity, and can realize the active that the position of left, center, right three is knocked into the back Control, while the advantages of making full use of material energy absorption, also spring and damper are applied in the device；Simultaneously, by In the randomness that collision occurs, when diverse location hits, each spring-damper synergy, the injury to vehicle will be hit It is preferably minimized, protection commercial car that also can be strong is to pedestrian and building.

2, by installing camera and radar additional, and using the magnetic rheological liquid damper and automatically controlled bullet that active control can be achieved Spring,, can be more preferable when the collision of moment occurs because the damping of magnetic rheological liquid damper and the stiffness tuning of electronic control spring are rapid The anti-collision structure ideal effect to be reached is realized on ground, while the resistance to active changeable device during terminating occurs in collision Buddhist nun, rigidity and structure stress direction, extenuate impact to greatest extent, seem a simple commercial car anticollision device, collision-prevention device, but actual tool There is more multipair driver to drive the function of cutting much ice, structure is relatively simple, effectively increases collision and the security driven.

3, by set four kinds of driving models, driver can the different driving model of easy adjustment, can both mitigate driver It is difficult to meet the driving of complex road condition, may be implemented in the protection of team pedestrian especially children, building and vehicle under various road conditions again, And realize the energy-conserving and environment-protective of automobile.

4, by realizing the vehicle and pedestrian information of collection commercial car afterbody in real time, driver can be made easily to realize turning U-turn.

Brief description of the drawings：

The utility model is further described below in conjunction with the accompanying drawings：

Accompanying drawing 1 is afterbody beam structure figure of the utility model with slideway.

Accompanying drawing 2 is the structure chart of the utility model collision prevention girders.

Accompanying drawing 3 is the sketch after the utility model installation.

Accompanying drawing 4 is the diagrammatic side views of the utility model normal work.

Afterbody crossbeam scheme of erection of the accompanying drawing 5 with slideway.

Accompanying drawing 6 is the diagrammatic top view of the utility model device.

In figure, 1, collision prevention girders；2, anticollision beam spring hold-down support；3, right-hand member camera；4, the hinged-support of connection damper； 5, radar；6, mechanical spring；7, magnetic rheological liquid damper；8, the afterbody crossbeam that band slides into；9, what afterbody crossbeam was connected with vehicle frame Pull bar；10, vehicle frame；11, the hinged-support being connected with pull bar on afterbody crossbeam；12, the interior connection electronic control spring of afterbody crossbeam slideway Hinged-support；13, the slideway of pulley；14, the bolt hole being fixedly connected with vehicle frame；15, the camera at middle part；16, right-hand member camera； 17, commercial car afterbody sketch；18, afterbody left side vehicle when commercial car travels；19, afterbody intermediate car when commercial car travels；20, Vehicle on the right side of afterbody when commercial car travels；21, the pulley of embedded slideway；22, electronic control spring；23, afterbody crossbeam spring fixes branch Seat

Embodiment：

Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, pivoting support 11 is connected by the afterbody crossbeam 8 with slideway by hinge with the vehicle frame 10 of commercial car, It is carried out bolt with vehicle frame 1 and is fixedly connected by leave four fixed installation holes 14 of upper end, so just causes the afterbody such as Fig. 2 Crossbeam 8 is fixed with vehicle frame 1, and one is formed with vehicle frame.Afterbody crossbeam 8 can cause two truckles 21 freely in its slideway 13 Slide, two one end of electronic control spring 22 are connected with the pivoting support 12 in slideway, and one end is each hinged a truckle 21.It is another Individual spring 6 is fixed on the spring hold-down support 23 of crossbeam.

Referring to Fig. 2, left side camera 3, middle camera 15, right side camera 16 and radar 5 are mounted with the outside of collision prevention girders, Inner side has and the bearing 2 of spring installation, the bearing 4 with damper installation.Fig. 1 afterbody crossbeam 8 and Fig. 2 collision prevention girders 1 pass through Spring 6 and damper 7 are attached, and two magnetic rheological liquid dampers 7 pass through be hinged connection pulley 21 respectively and collision prevention girders Hinged-support 12, fixed spring are fixedly connected by the spring fastening 23 of afterbody crossbeam with the spring fastening 2 of collision prevention girders, so just shape Into the buffer unit of flexible a characteristic and damping characteristic.

Referring to Fig. 3, the sketch after integral installation, when collision prevention girders are by impulsive force, mechanical elastic will be transferred force to Spring 6 and damper 7, damper can so realize spring, damper is multiple to be delayed due to being hinged electronic control spring 22 with pulley 21 Punch mechanism impacts to extenuate, and reduces damage of the shock of moment to vehicle and personnel to greatest extent.

Referring to Fig. 4, commercial car in the process of moving, left side camera 3, middle camera 15, right side camera 16 and thunder Vehicle, pedestrian and the building information that can monitor afterbody in real time up to 5, can make driver know the information of road surface of afterbody, together When, trizonal monitoring information can be by being transferred to single-chip microcomputer electric-control system, if 19, the vehicle that will be knocked into the back In the centre position of commercial car, then electric-control system receives the signal and controls the electronic control spring of the left and right sides and damper to start Work, now the electronic control spring of left and right ends and the rigidity of damper are identical with damping size variation；If imminent touch The both sides for being located at collision prevention girders are hit, then electric-control system then controls the electronic control spring of both sides and the rigidity of damper and damping size variation It is different.Left side collides, and the rigidity and damping value in left side are small compared with right side and change is bigger, and similarly, right side collides, right The rigidity and damping value of side are small compared with left side and change is bigger.

Referring to afterbody crossbeam schemes of erection of the Fig. 5 with slideway, the sketch is installation mechanical spring 6, damper 7 and pulley 21 Structure diagram afterwards, in the structure, mechanical spring 6 has certain angle with damper 7, and non-coplanar with afterbody crossbeam 8.

Referring to the top view of Fig. 6 utility model devices, the top view, which can combine Fig. 3 and Fig. 5, can clearly express the device Space structure.

Claims (9)

1. a kind of active control device for being used to improve commercial vehicle collision security, it is characterised in that including magnetorheological fluid damp Device, electronic control spring, mechanical spring, collision prevention girders, single-chip microcomputer electric-control system, radar system, camera, slidable afterbody crossbeam； Wherein magnetic rheological liquid damper is connected with electronic control spring, cooperates at work；Collision prevention girders are used for receiving extraneous shock；It is single Piece Electrical Control system is used for receiving effective pedestrian and information of vehicles and then the control magnetic current of radar and the camera collection The damping of liquescent damper and the rigidity of electronic control spring；Slidable afterbody crossbeam is used for installing spring and bears load.

A kind of 2. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that It is used cooperatively using two magnetic rheological liquid dampers that can realize multiple degrees of freedom regulation and two with magnetic rheological liquid damper Electronic control spring, laterally symmetrical embedded afterbody crossbeam, its one end are fixed on the inside of afterbody crossbeam to two of which electronic control spring, The other end is hinged with pulley, and pulley is hinged with one end of magnetic rheological liquid damper simultaneously, realizes being used cooperatively for the two, so anti- Collision device can realize multi-angle collision prevention function, when different angle collision occurs, can produce different anti-collision effects；Work as generation During collision, its rigidity is minimum during electronic control spring is less than 30 millimeters by compression distance, and damper damping is maximum, when automatically controlled bullet When spring compression distance is more than or equal to 30 millimeters, electronic control spring starts gradually to increase its rigidity, and damper starts to be gradually reduced it Damping, the quick change that the angle of damper stress so can be achieved cause the electronic control spring to be moved to compression direction, extended Strong collision time.

A kind of 3. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that It is steel construction inside collision prevention girders, has elastomeric material in its outer surface, the mechanical elastic is fixedly mounted in its inner top side midpoint Spring, the multi-direction movement of collision prevention girders can be made, while mechanical spring can reduce the cost of device；Lower end is provided with two pivoting supports, Magnetic current liquid variable damping device is hinged, is used for that camera and radar are installed on the outside of collision prevention girders.

A kind of 4. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that There is one section of slide rail at slidable afterbody crossbeam both ends, and two-end structure is symmetrical, and left end and the electronic control spring of right-hand member two are respectively embedded into cunning Rail, can transverse movement.

A kind of 5. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that Using three cameras, three diverse locations being respectively arranged on the outside of collision prevention girders, one of them is installed on collision prevention girders interposition Near putting, two other is respectively arranged in the left and right both ends of collision prevention girders, and three installation sites are horizontal conllinear；In running car During, can gather vehicle, pedestrian and the building information on the left of afterbody, among afterbody and on the right side of afterbody respectively, and by this Information transfer to single-chip microcomputer electric-control system, while these three cameras can also realize by the left of vehicle tail, among afterbody and Three main real-time pictures for influenceing driver's driving vision are transferred to driver's cabin on the right side of afterbody, eliminate the blind of commercial car afterbody Area so that driver avoids the collision to pedestrian especially children and other vehicles in reversing or turning.

A kind of 6. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that Using 1 radar, peace turns the centre position on the outside of collision prevention girders, and it, which is acted on, is mainly used to measure afterbody vehicle when vehicle travels With the distance and relative velocity of the car, the data that the radar obtains only are needed as control camera switch, electronic control spring rigidity The foundation of size is damped with magnetic rheological liquid damper, without being transferred to driver's cabin.

A kind of 7. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that Radar and camera are used cooperatively, and are divided into four kinds of mode of operations, are highway driving mode of operation, national highway or provincial highway respectively Mode of operation, the mode of operation of reversing of the complex road conditions such as mode of operation, city or rural area；When in highway driving During pattern, when radar measures rear car and is less than or equal to 3 meters away from the tailstock portion, and relative speed is more than or equal to 20 kilometers/hour, Camera is just started working, and otherwise camera does not work, it is possible to reduce the loss of vehicle electric energy；When in national highway or provincial highway traveling It is relatively low during the relatively high speed traveling of speed during pattern, when radar measures rear car and is less than or equal to 2 meters away from the tailstock portion, and relative car Speed is more than or equal to 10 kilometers/hour, and camera is just started working, and otherwise camera does not work, and is so more beneficial for automobile section Energy；When in city or rural pattern, because road conditions are complex, radar and camera are all turned on, and by camera So that driver refers to when the picture of collection passes to driving, avoiding wounding pedestrian or strikes bicycle or other vehicles；Work as place In move backward mode of operation when, camera and radar are fully open, for protecting pedestrian, vehicle and building.

8. a kind of active control device for being used to improve commercial vehicle collision security as claimed in claim 7, it is characterised in that 3 Individual camera gathers the information of vehicles of the tailstock portion diverse location, when radar measures rear car and front truck spacing is small under 3 kinds of patterns When 1 meter, the size of afterbody vehicle area is collected according to each camera to judge the position of afterbody vehicle, when When the vehicle that will be knocked into the back is located at commercial car afterbody centre position, control two electronic control springs of left and right and damper stiffness and damping are greatly It is small consistent；When the vehicle that will be knocked into the back is located at the left side or right side of commercial car afterbody, now the electronic control spring of left and right ends and The rigidity of damper and damping cause not of uniform size.

A kind of 9. active control device for being used to improve commercial vehicle collision security as claimed in claim 1, it is characterised in that Buffering when magnetic rheological liquid damper and electronic control spring are to increase shock, increase collision time, reduce crash acceleration, will be riding The knock into the back collision process of commercial car of car switchs to flexible process by rigid process, reduces danger.