CN102092374B - Multi-functional vehicle rollover decision system and automatic rollover-preventing device - Google Patents
Multi-functional vehicle rollover decision system and automatic rollover-preventing device Download PDFInfo
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Abstract
The invention discloses a multi-functional vehicle rollover decision system and an automatic rollover-preventing device, belonging to the filed of vehicles. The multi-functional vehicle rollover decision system comprises at least two displacement sensors, an ECU (electronic control unit) and an output device, wherein the ECU is respectively connected with the displacement sensors, and the output device is connected with the ECU; every two displacement sensors are distributed in a group; and at least a group of displacement sensors are symmetrically arranged between a vehicle frame and a vehicle axle. The automatic rollover-preventing device comprises the multi-functional vehicle rollover decision system and an actuating mechanism connected with the multi-functional vehicle rollover decision system, wherein the actuating mechanism at least comprises a left actuating mechanism and a right actuating mechanism which are symmetrically arranged on the vehicle frame, and the left actuating mechanism and the right actuating mechanism are respectively provided with a telescopic shaft and a supporting wheel arranged outside the telescopic shaft. The multi-functional vehicle rollover decision system and automatic rollover-preventing device disclosed by the invention can prevent the occurrence of vehicle rollover under any circumstances, and have the advantages of wide application range and high accuracy.
Description
Technical field
The invention belongs to vehicular field, particularly a kind of Vehicular multifunction rollover decision-making system and automatic anti-rollover device.
Background technology
Vehicle travel or transportation in because excessive velocities when turning, reasons such as lade unbalance loading can cause vehicle rollover, and this accident happens occasionally in daily, in case accident takes place, then can cause the loss of life and property.
Prevent that at present vehicle rollover from being a big problem of domestic and international vehicle industry.Present vehicle automatic anti-rollover device, as publication number be: CN01121520.8, denomination of invention is: the patent of invention of automatic overturn-preventing mechanism of car, a kind of automatic overturn-preventing mechanism is disclosed, this device just detects the centrifugal acceleration that vehicle produces with acceleration pick-up when turning, judge by this index of centrifugal acceleration whether vehicle has the rollover tendency.Yet, cause the factor of vehicle generation rollover a lot, be not that the centnifugal force that has only turn inside diameter to produce causes this factor of vehicle rollover,, lateral impact power amesiality such as vehicle institute cargo, side direction wind is excessive, the road surface degree of dip is excessive etc., and reason all can cause vehicle rollover.Moreover vehicle under same centrifugal acceleration, is safe to the underslung vehicle of lade, but can turns on one's side to the high vehicle of lade center of gravity when turning.Therefore, this index of centrifugal acceleration of utilizing acceleration pick-up to detect vehicle generation when turning judges whether vehicle has the rollover tendency, and application scenarios has limitation, nor accurately.
Summary of the invention
Judge by centrifugal acceleration whether vehicle turns on one's side, and existing application scenarios is limited in order to overcome above-mentioned prior art, the problem of accuracy shortcoming, the embodiment of the invention provide a kind of Vehicular multifunction rollover decision-making system and automatic anti-rollover device.Described technical scheme is as follows:
A kind of Vehicular multifunction rollover decision-making system, described system comprises at least two displacement pickups, ECU (the Electronic Control Unit that links to each other respectively with described displacement pickup, electronic control unit, claim " car running computer ", " vehicle-mounted computer " again), and the output unit that links to each other with described ECU, described displacement pickup is that one group rule distributes according to two, has at least one group of described displacement pickup to be separately positioned on described carriage frame and the described vehicle axle.
Particularly, described vehicle is three-wheel transporter, and described vehicle bridge is cycle bridge, and then described displacement pickup quantity is two, described two displacement pickups symmetry respectively are installed between the vehicle bridge of the vehicle frame both sides of described vehicle and described vehicle, and perpendicular to described vehicle bridge and described vehicle frame.
Particularly, described vehicle is provided with two above vehicle bridge, then the quantity of described displacement pickup is at least four, comprise at least two groups, one group of described displacement pickup wherein is respectively between the preceding vehicle bridge of the symmetry vehicle frame both sides that are installed in described vehicle and described vehicle and perpendicular to preceding vehicle bridge and the described vehicle frame of described vehicle, and one group of described displacement pickup in addition is respectively between the most end vehicle bridge of the symmetrical vehicle frame both sides that are installed in described vehicle and described vehicle and perpendicular to most end vehicle bridge and the described vehicle frame of described vehicle.
Further, described vehicle comprises a plurality of preceding vehicle bridge or/and the back vehicle bridge between vehicle bridge and the described vehicle frame or between each described back vehicle bridge and the described vehicle frame, is symmetrical arranged described displacement pickup in groups before each is described.
Particularly, described output unit comprises display module and pre-alarm module.
Further, described system also comprises a load module, and described load module links to each other with described ECU.
Further, described system is also connecting an actuating unit, and described actuating unit is used for preventing described vehicle rollover.
The embodiment of the invention also provides a kind of automatic anti-rollover device that contains described Vehicular multifunction rollover decision-making system, described device comprises described Vehicular multifunction rollover decision-making system and actuating unit, described actuating unit links to each other with described ECU and by its control action, described actuating unit comprises at least to be located on the described carriage frame and left side actuating unit and the right side actuating unit of symmetry, described left side actuating unit and described right side actuating unit include a telescopic shaft, and the support wheel of being located at the described telescopic shaft outside, described telescopic shaft all provides power by dynamical element, and control described telescopic shaft by driver element and carry out expanding-contracting action, initial condition, described support wheel is unsettled with respect to wheel and the ground of described vehicle, and its wheelspan is identical with the wheelspan of described vehicle.
Further, the front and rear of described carriage frame is respectively equipped with described actuating unit.
Particularly, described dynamical element comprises high pressure tank, electromagnetic valve and pipeline, described high pressure tank links to each other with described driver element through described electromagnetic valve by described pipeline, described electromagnetic valve links to each other with described ECU, described driver element comprises cylinder, described cylinder links to each other with described high pressure tank through described electromagnetic valve by described pipeline, and described cylinder links to each other with described telescopic shaft by adapter plate.
Particularly, described dynamical element comprises hydraulic power unit, electromagnetic valve and pipeline, described hydraulic power unit links to each other with described driver element through described electromagnetic valve by described pipeline, described electromagnetic valve links to each other with described ECU, described driver element comprises hydraulic actuating cylinder, described hydraulic actuating cylinder links to each other with described hydraulic power unit through described electromagnetic valve by described pipeline, and described hydraulic actuating cylinder links to each other with described telescopic shaft by adapter plate.
Particularly, described dynamical element comprises drive motor, and described drive motor links to each other with described ECU, and described driver element comprises gear and the tooth bar that is meshed, described tooth bar is arranged on the described telescopic shaft, and described gear links to each other with described drive motor and passes through its driving.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is:
The described Vehicular multifunction rollover of embodiment of the invention decision-making system, vehicle bridge by being located at vehicle and the displacement pickup between the vehicle frame detect the side-play amount of car load, be transferred to ECU and record the load carrying ability of vehicle by it, thereby artificially lade is carried out the balance adjustment, perhaps start the unbalance loading alarm module by ECU.
The embodiment of the invention also provides a kind of automatic anti-rollover device, comprise above-mentioned Vehicular multifunction rollover decision-making system and coupled actuating unit, detect the vehicle bridge left side wheel of vehicle and the side-play amount of right side wheels load by displacement pickup, and be transferred to ECU and carry out vehicle rollover and judge, start actuating unit by ECU according to judged result, stoped the generation of rollover.Owing to any reason causes vehicle rollover, finally all be embodied in the wheel carrying to the skew of rollover single wheel, the present invention just is being based on this principle and is developing, so the present invention is compared to existing technology, it is extensive to have a range of use, the advantage that accuracy is high.
Description of drawings
Fig. 1 is the logic control chart of the described system of the embodiment of the invention;
Fig. 2 be the described system of the embodiment of the invention at the installation site of vehicle instruction diagram;
Fig. 3 a is the front view of the described actuating unit in the described device of one embodiment of the invention;
Fig. 3 b is the upward view of Fig. 3 a;
Fig. 4 is the upward view of the described actuating unit in the described device of another embodiment of the present invention;
Fig. 5 is the upward view of the described actuating unit in the described device of yet another embodiment of the invention;
Fig. 6 a is the constitution diagram when the described device of the embodiment of the invention being installed preventing that vehicle from turning on one's side to the right;
Fig. 6 b is the constitution diagram of Fig. 6 a when resetting;
Fig. 6 c is the constitution diagram when the described device of the embodiment of the invention being installed preventing that vehicle from turning on one's side left;
Fig. 6 d is the constitution diagram of Fig. 6 c when resetting;
Fig. 6 e is the constitution diagram of all wheels of vehicle that the described device of the embodiment of the invention is installed anti-rollover and rolling when soaring;
Fig. 6 f is the constitution diagram of Fig. 6 e when resetting;
Fig. 7 is the constitution diagram of the described device of the embodiment of the invention when preventing that vehicle from turning on one's side to the right.
Among the figure: left dislocation sensor before 1,2 preceding right displacement pickups, 3 back left dislocation sensors, the right displacement pickup in 4 backs, 5 display modules, 6ECU, 7 left side actuating units, 8 right side actuating units, 9 pre-alarm modules;
10 vehicle frames, 11 preceding revolvers, 12 front right wheels, 13 elastic elements, 14 preceding vehicle bridge, 15 back revolvers, 16 rear right wheels, 17 back vehicle bridge;
21 support wheels, 22 telescopic shafts, 23 adapter plates, 24 cylinders, 25 electromagnetic valves, 26 high pressure tanks, 27 hydraulic actuating cylinders, 28 tooth bars, 29 gears, 30 hydraulic power units.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the described a kind of Vehicular multifunction rollover decision-making system of the embodiment of the invention, comprise at least two displacement pickups, ECU 6 (the Electronic Control Unit that links to each other respectively with described displacement pickup, electronic control unit, claim " car running computer ", " vehicle-mounted computer " again), and the output unit that links to each other with described ECU 6, described displacement pickup is that one group rule distributes according to two, has at least one group of described displacement pickup to be separately positioned between described carriage frame 10 and the described vehicle axle.
Referring to Fig. 2, this example is that example is illustrated with the three-wheel vehicle of single bridge, described vehicle bridge is cycle bridge, then described displacement pickup quantity is two, described two displacement pickups 1,2 symmetry respectively are installed between described carriage frame 10 both sides and the described vehicle axle 14, and perpendicular to described vehicle axle 14 and described vehicle frame 10.
Particularly, referring to Fig. 2, in this example, be example with common four-wheeled, it comprises vehicle bridge 17 behind a preceding vehicle bridge 14 and, and described system is referring to Fig. 1, the quantity of described displacement pickup is four, and be divided into two groups, comprise symmetrically arranged preceding left dislocation sensor 1 and preceding right displacement pickup 2, and symmetrically arranged back left dislocation sensor 3 and the right displacement pickup 4 in back.Referring to Fig. 2, one group of described displacement pickup wherein, namely before left dislocation sensor 1 and preceding right displacement pickup 2, symmetry is installed between described carriage frame 10 and the preceding vehicle bridge 14 of described vehicle and perpendicular to vehicle bridge 14 before the described vehicle and described vehicle frame 10 respectively.Referring to Fig. 1, one group of described displacement pickup in addition, the right displacement pickup 4 of left dislocation sensor 3 and back namely, symmetry is installed between described carriage frame 10 (referring to Fig. 2) and the described vehicle most end vehicle bridge 17 and perpendicular to described vehicle most end vehicle bridge 17 and described vehicle frame 10 (referring to Fig. 2) respectively.The two ends of all displacement pickups are separately fixed on vehicle frame 10 outsides and the vehicle bridge, the mouth of all displacement pickups correspondence respectively is connected to ECU 6 input ends, all displacement pickups are all for detection of the vertical displacement amount between vehicle frame 10 outsides and the vehicle bridge, and this displacement equals the elastic deformation amount of those sidecar frame 10 those side elastic elements 13 of corresponding suspension of installation position displacement sensor.Send this deflection to ECU 6 by lead, handle conversion by the CPU among the ECU 6 (central process unit), calculate the bearing capacity of that corresponding wheel of displacement pickup.
Referring to Fig. 2, being calculated as follows of bearing capacity, according to Hook's law, can calculate carriage frame 10 left sides with respect to vehicle before the elastic force of elastic element 13, i.e. a F left side=KX left side between the vehicle bridge.Wherein, F is the elastic force of elastic element 13, and K is the coefficient of stiffiness of elastic element 13, and X is the deflection of elastic element 13), a F left side also equals the pressure of 10 pairs of elastic elements 13 of carriage frame, and this pressure also just equals the supporting power of preceding vehicle bridge 14 left side wheel of vehicle.Can calculate the supporting power in vehicle bridge 17 left sides and right side wheels behind vehicle bridge 14 right side wheels before the vehicle, the vehicle accordingly.
Further, when described vehicle comprise four above wheels and comprise a plurality of before when vehicle bridge and a plurality of back vehicle bridge, can also be as required, described before each between vehicle bridge and the vehicle frame or be arranged with described displacement pickup respectively between described back vehicle bridge and the described vehicle frame.
In this example, referring to Fig. 1, described output unit comprises display module 5 and pre-alarm module 9.
Further, referring to Fig. 1, described system also comprises a load module (not drawing among the figure), and described load module links to each other with described ECU 6, has made things convenient for the input of system.
Further, described system is also connecting an actuating unit, and described actuating unit is used for preventing described vehicle rollover.Wherein, described actuating unit can be any existing anti-rollover technology, and this actuating unit all can be complementary with Vehicular multifunction rollover decision-making system of the present invention.
This shows that by the function expansion to system ECU 6 of the present invention, the system that makes has simultaneously: the load-carrying metering of vehicle automatic anti-rollover, vehicle, the indication of lade unbalance loading and warning function.
Referring to Fig. 1, the embodiment of the invention also provides a kind of automatic anti-rollover device that contains described Vehicular multifunction rollover decision-making system, described device comprises described Vehicular multifunction rollover decision-making system and actuating unit, described actuating unit links to each other with described ECU 6 and by its control action, described anti-rollover device comprises a described actuating unit at least, the quantity that load arranges described actuating unit of appraising and deciding according to the length of described vehicle frame and vehicle, each described actuating unit includes to be located on the described carriage frame and the left side of symmetry execution machine 7 and right side actuating unit 8, referring to Fig. 3 b, described left side actuating unit 7 (referring to Fig. 1) and described right side actuating unit 8 (referring to Fig. 1) include a telescopic shaft 22, and the support wheel 21 of being located at described telescopic shaft 22 outsides, described telescopic shaft 22 all provides power by dynamical element, and control described telescopic shaft 22 by driver element and carry out expanding-contracting action, initial condition, described support wheel is unsettled with respect to wheel and the ground of described vehicle, and the wheelspan of its wheelspan and vehicle is identical.
Wherein, dynamical element can be with air pressure driving, hydraulic-driven, three kinds of modes of Mechanical Driven.
As shown in Figure 1, preceding left dislocation sensor 1 and preceding right displacement pickup 2, and the mouth of the circuit of the right displacement pickup 4 of back left dislocation sensor 3 and back is connected respectively to the input end of ECU 6, the mouth of this ECU 6 connects left and right actuating unit respectively; The mouth of above-mentioned ECU 6 also connects Liquid Crystal Display (LCD), pre-alarm module 9, system respectively and circuit is set inserts above-mentioned ECU 6; Constant voltage power suspply connects the various piece of controller.
The left side actuating unit 7 of above-mentioned ECU 6 and the output circuit of right side actuating unit 8 are symmetrical.
Particularly, referring to Fig. 2, in this example, described system is referring to Fig. 2, and the quantity of described displacement pickup is four, and is divided into two groups, comprise symmetrically arranged preceding left dislocation sensor 1 and preceding right displacement pickup 2, and symmetrically arranged back left dislocation sensor 3 and the right displacement pickup 4 in back.One group of described displacement pickup wherein, namely before left dislocation sensor 1 and preceding right displacement pickup 2, symmetry is installed between described carriage frame 10 and the preceding vehicle bridge 14 of described vehicle and perpendicular to vehicle bridge 14 before the described vehicle and described vehicle frame 10 respectively.One group of described displacement pickup in addition, i.e. back left dislocation sensor 3 and afterwards right displacement pickup 4, symmetry is installed between described carriage frame 10 and the described vehicle most end vehicle bridge 17 and perpendicular to described vehicle most end vehicle bridge 17 and described vehicle frame 10 respectively.The two ends of all displacement pickups are separately fixed on vehicle frame 10 outsides and the vehicle bridge, the mouth of all displacement pickups correspondence respectively is connected to ECU 6 input ends, all displacement pickups are all for detection of the vertical displacement amount between vehicle frame 10 outsides and the vehicle bridge, and this displacement equals the elastic deformation amount of that side elastic element 13 of suspension of those sidecar frame 10 corresponding vehicle bridge of installation position displacement sensor.Send this deflection to ECU 6 by lead, handle conversion by the CPU among the ECU 6 (central process unit), calculate the bearing capacity of that corresponding wheel of displacement pickup.
Referring to Fig. 1, the displacement of left dislocation sensor 1 and preceding right displacement pickup 2 and the right displacement pickup 4 of back left dislocation sensor 3 and back before ECU 6 receives respectively, the CPU among the ECU 6 carries out following three calculating:
The first step is calculated: calculate the preceding left dislocation sensor 1 that is installed in vehicle bridge 14 and back vehicle bridge 17 before the vehicle and preceding right displacement pickup 2 and the sensor of left dislocation afterwards 3 with after the move to right bearing capacity of sensor 4 corresponding vehicle the near front wheels and left rear wheel, vehicle off front wheel and off hind wheel;
Second step calculated: the bearing capacity addition of vehicle the near front wheel and left rear wheel equals a G left side, and the bearing capacity addition of vehicle off front wheel and off hind wheel equals the G right side;
The 3rd step calculated: the 3rd calculating is compared the bearing capacity of vehicle left side and right side wheels exactly, when a G left side is right greater than G, and a G right side/G left side=Y left side; When the G right side is left greater than G, a G left side/G right side=Y right side.Wherein, a Y left side is the car load deviation ratio of wheel skew to the left, and the Y right side is the car load deviation ratio of wheel skew to the right.
When a deviation ratio Y left side or Y r value reached first given peak value (unbalance loading setting value), ECU 6 was through time-delay and send vehicle unbalance-loading to alarm module and report to the police.
When a deviation ratio Y left side or the Y right side reach second given peak value (vehicle rollover setting value namely turn on one's side critical value), when ECU 6 sends the vehicle rollover warning to alarm module, the mouth of ECU 6 also sends the anti-rollover instruction to the actuating unit of wheel of vehicle carrying that side maximum and that sharply increase, the actuating unit action.When a deviation ratio Y left side or the Y right side returned in the default safe range, ECU 6 sent and stops the anti-rollover instruction, makes device be in servo condition.
Further, the front and rear of described carriage frame 10 is respectively equipped with described actuating unit.
Shown in Fig. 3 a and 3b, particularly referring to Fig. 3 b, in this example, described dynamical element comprises electromagnetic valve 25 high pressure tank 26, left side and the right side and pipeline separately, described high pressure tank 26 links to each other with described driver element separately through separately electromagnetic valve 25 by described pipeline, each described driver element includes cylinder 24, the flexible pipe interface of described cylinder 24 piston rods links to each other with described high pressure tank 26 through separately electromagnetic valve 25 by described pipeline, and the terminal of described cylinder 24 piston rods is passed through adapter plate 23 and linked to each other with described telescopic shaft 22.Wherein, the power supply signal line of the output of the left and right actuating unit in ECU 6 mouths correspondence connects the power supply signal line of described left side and electromagnetic valve 25 right side.
Shown in Fig. 3 b, initial condition, the support wheel 21 of telescopic shaft 22 is unsettled, and is identical with the wheelspan of other wheels of vehicle after retraction resets.In this example, the cylinder body of the driving cylinder 24 in left side and the driving cylinder 24 on right side laterally is vertically fixed on left inboard and the Right Inboard of vehicle frame 10 respectively, adapter plate 23 by separately is connected and fixed with separately telescopic shaft 22 terminal of its piston rod separately in the outside of vehicle frame 10, and the telescopic shaft 22 that piston rod separately drives separately is flexible.The power supply signal line of electromagnetic valve 25 separately is the corresponding power supply signal line that connects the output of the left and right actuating unit in ECU 6 mouths respectively, by ECU 6 controls electromagnetic valve 25 separately, and then control high pressure tank 26 is to the keying of left and right driving cylinder 24 supply air lines.The delivery conduit of high pressure tank 26 connects and is controlling separately piston rod through separately electromagnetic valve 25 and drives the flexible of separately telescopic shaft 22.
Shown in Fig. 4 a and 4b, particularly referring to Fig. 4 b, in this example, described dynamical element comprises hydraulic power unit 30, left side and the electromagnetic valve right side and pipeline separately, described hydraulic power unit 30 links to each other with described driver element separately through separately electromagnetic valve 25 by described pipeline, each described driver element includes hydraulic actuating cylinder 27, the flexible pipe interface of described hydraulic actuating cylinder 27 piston rods links to each other with described hydraulic power unit 30 through separately electromagnetic valve 25 by described pipeline, and the terminal of described hydraulic cylinder piston rod 27 is passed through adapter plate 23 and linked to each other with described telescopic shaft 22.Wherein, the corresponding power supply signal line that connects described electromagnetic valve of the power supply signal line of the output of the actuating unit in the ECU mouth.The hydraulic-driven principle is with the air pressure driving principle, and this example repeats no more.
Shown in Fig. 5 a and Fig. 5 b, particularly referring to Fig. 5 b, in this example, described dynamical element comprise the left side with the drive motor on right side, described drive motor separately links to each other with described ECU 6 respectively, each described driver element includes gear 29 and the tooth bar 28 that is meshed, and described tooth bar 28 is arranged on the described telescopic shaft 22, and described gear 29 links to each other with described drive motor and passes through its driving.
Shown in Fig. 5 b, tooth bar 28 engagements on driving motor driven gear 29 and the telescopic shaft 22 drive telescopic shaft 22 by the motor forward or reverse and make expanding-contracting action.Power supply and the control signal of the left and right actuating unit of being drawn by the mouth of ECU 6 are connected to the input end of left side drive motor and right side drive motors power supply through the lead correspondence.
The vehicle of the described device of the embodiment of the invention is housed, in static or operational process, might has the possibility of following several rollovers, this example is that example is illustrated with the air pressure driving:
Shown in Fig. 6 a, when a vehicle carrying deviation ratio Y left side reaches vehicle rollover setting peak value, the multi-functional rollover decision-making system judgement vehicle of this device is turned on one's side to the left, the ECU 6 mouths electromagnetic valve 25 of actuating unit to the left send the instruction that cylinder 24 piston rods on the left of opening stretch out air valve, the telescopic shaft 22 that the piston rod of the cylinder 24 in left side drives vehicle left side stretches out to vehicle left side fast, when the support wheel kiss the earth of telescopic shaft 22 outer ends, the support wheel of telescopic shaft 22 outer ends produces a support in the left side of vehicle, has stoped vehicle rollover to the left.As shown in Figure 7, this figure is when rollover takes place vehicle, and this device stops the scheme drawing of vehicle rollover, and this figure turns on one's side to the right according to vehicle and is example.When the actuating unit of this device reaches rollover setting peak value on the car load deviation ratio Y right side, the telescopic shaft 22 on this device right side stretches to the car body right side fast under the driving of actuating device, the support wheel that stretches out telescopic shaft 22 outer ends, back contacts with ground, this moment, telescopic shaft 22 produced a support on the car body right side, had stoped the generation of vehicle rollover.
Shown in Fig. 6 b, support wheel when vehicle telescopic shaft 22 outer ends produces a support (referring to Fig. 6 a) in the left side of vehicle, stoped vehicle rollover to the left, when making a deviation ratio Y left side return to safety value, the mouth of ECU 6 electromagnetic valve 25 of actuating unit to the left sends the instruction that cylinder 24 piston rods on the left of closing stretch out air valve, send the instruction of the cylinder 24 piston rods retraction air valve of opening the left side simultaneously, the piston rod of the cylinder 24 in left side drives telescopic shaft 22 fast retractiles, makes this device be in the anti-rollover servo condition.
Shown in Fig. 6 c, also can be referring to Fig. 7, when the deviation ratio Y right side reaches the vehicle rollover setting value, the multi-functional rollover decision-making system judgement vehicle of this device is turned on one's side to the right, the ECU 6 mouths electromagnetic valve 25 of actuating unit to the right send the instruction that cylinder 24 piston rods of opening the right side stretch out air valve, the telescopic shaft 22 that the piston rod of the cylinder 24 on right side drives the vehicle right side stretches out to the vehicle right side fast, when the support wheel kiss the earth of telescopic shaft 22 outer ends, telescopic shaft 22 produces a support on the right side of vehicle, has stoped vehicle rollover to the right.
Shown in Fig. 6 d, when telescopic shaft 22 produces a support (referring to Fig. 6 c) on the right side of vehicle, stoped vehicle rollover to the right, when making the deviation ratio Y right side return to safety value, the mouth of ECU 6 electromagnetic valve 25 of actuating unit to the right sends the instruction that cylinder 24 piston rods of closing the right side stretch out air valve, send the instruction of the cylinder 24 piston rods retraction air valve of opening the right side simultaneously, the piston rod of the cylinder 24 on right side drives its telescopic shaft 22 fast retractiles, makes this device be in the anti-rollover servo condition.
Shown in Fig. 6 e, left dislocation sensor 1 and preceding right displacement pickup 2 before aforesaid, and the displacement of the right displacement pickup 4 of back left dislocation sensor 3 and back (revolver 11 before the vehicle when being zero, front right wheel 12, back revolver 15, the carrying of 16 4 wheels of rear right wheel is zero), the ECU 6 of this apparatus multifunction rollover decision-making system judges that vehicle is in vacant state, vehicle landed and was in nondeterministic statement this moment, turn on one's side or rolling in order to prevent that vehicle lands, the mouth of ECU 6 is actuating unit to this device left side simultaneously at this moment sends the instruction that cylinder 24 piston rods with the right side on the left of opening stretch out air valve with the electromagnetic valve 25 right side actuating unit, the telescopic shaft 22 that the left side and the piston rod cylinder 24 on right side drive vehicle left side and right side stretches out to vehicle left side and right side simultaneously fast, stops vehicle left when vehicle lands or the right side is turned over.When vehicle lands, being in the rolling state, because the wheel shaft that stretch out the car body both sides stops the rolling of vehicle too.
Shown in Fig. 6 f, when vehicle lands a Y left side or the Y right side when returning to the safety value of setting, ECU 6 mouths simultaneously to the left the electromagnetic valve 25 of actuating unit and right side actuating unit send and close the left side and instruction that right cylinder 24 piston rods stretch out air valve, send the instruction of opening left side and right cylinder 24 piston rods retraction air valve simultaneously, the piston rod of left side and right cylinder 24 drives telescopic shaft 22 fast retractiles, makes this device be in the anti-rollover servo condition.
Summary of benefits of the present invention is:
1, described system adopts displacement pickup and intelligentized electronic control unit ECU, be quick on the draw, control is reliable, make vehicle when rollover danger takes place, control described device and stretch out a wheel shaft to that side of rollover, the support wheel of telescopic shaft outer end produces a lateral support to vehicle, has stoped the generation of rollover.
2, described device prevents the vehicle rollover that any factor causes.Described device judges that the scheme whether vehicle turns on one's side is based on: ECU is by judging the deviation ratio of vehicle left side wheel and right side wheels bearing capacity, and any reason causes vehicle rollover, the final wheel that all is embodied in carries to the skew of rollover single wheel, therefore described device can prevent the vehicle rollover that any factor causes
3, described device is independent of any system of vehicle, does not influence other any function of vehicle.
4, rollover takes place at vehicle and stretches out a wheel shaft from trend that side of turning on one's side when dangerous in described device, and the support wheel of telescopic shaft outer end produces a lateral support to vehicle, and when vehicle rollover is dangerous when eliminating, telescopic shaft retraction automatically resets, without driver's operation.
5, the multifunctionality of described system is embodied in, and by the function expansion to ECU, described device can have simultaneously: the load-carrying metering of vehicle automatic anti-rollover, vehicle, the indication of lade unbalance loading and warning function.
6, described device is easy for installation.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. Vehicular multifunction rollover decision-making system, it is characterized in that, described system comprises at least two displacement pickups, the ECU that links to each other respectively with described displacement pickup, and the output unit that links to each other with described ECU, described displacement pickup is that one group rule distributes according to two, has at least between the described carriage frame of being arranged on of one group of described displacement pickup symmetry and the described vehicle axle;
All the ends of the displacement sensors are fixed to the outside of the frame and the axle; all output of the displacement sensor corresponding to the input terminal connected to the ECU; all of the displacement sensors are used to detect the outer frame and the vertical axle displacement; that the amount corresponding to the displacement sensor mounted on the side corresponding to the suspension frame side elastic deformation of the elastic member; through the wire transmitted to the deformation amount of the ECU; processing by a CPU in the ECU conversion; calculated of the displacement sensor corresponding to the carrying capacity of the one wheel
The quantity of described displacement pickup is four, and is divided into two groups, comprises symmetrically arranged preceding left dislocation sensor and preceding right displacement pickup, and the right displacement pickup of symmetrically arranged back left dislocation sensor and back, and the CPU among the ECU carries out following three steps calculating:
The first step is calculated: calculate the preceding left dislocation sensor that is installed in vehicle bridge and back vehicle bridge before the vehicle and preceding right displacement pickup and the sensor of left dislocation afterwards with after the move to right bearing capacity of the corresponding vehicle the near front wheel of sensor and left rear wheel, vehicle off front wheel and off hind wheel;
Second step calculated: the bearing capacity addition of vehicle the near front wheel and left rear wheel equals a G left side, and the bearing capacity addition of vehicle off front wheel and off hind wheel equals the G right side;
The 3rd step calculated: the 3rd step calculated and exactly the bearing capacity of vehicle left side and right side wheels is compared, when a G left side is right greater than G, and a G right side/G left side=Y left side; When the G right side is left greater than G, a G left side/G right side=Y right side, wherein, a Y left side is the car load deviation ratio of wheel skew to the left, the Y right side is the car load deviation ratio of wheel skew to the right;
When a deviation ratio Y left side or Y r value reached first given peak value and be the unbalance loading setting value, ECU was through time-delay and send vehicle unbalance-loading to alarm module and report to the police;
Be that the vehicle rollover setting value is when namely turning on one's side critical value when a deviation ratio Y left side or the Y right side reach second given peak value, when ECU sends the vehicle rollover warning to alarm module, the mouth of ECU also sends the anti-rollover instruction to the actuating unit of wheel of vehicle carrying that side maximum and that sharply increase, the actuating unit action;
When a deviation ratio Y left side or the Y right side returned in the default safe range, ECU sent and stops the anti-rollover instruction, makes device be in servo condition.
2. Vehicular multifunction rollover decision-making system as claimed in claim 1 is characterized in that described output unit comprises display module and pre-alarm module, and described system also comprises a load module, and described load module links to each other with described ECU.
3. Vehicular multifunction rollover decision-making system as claimed in claim 1 or 2 is characterized in that described system is connecting described actuating unit, and described actuating unit is used for preventing described vehicle rollover.
4. the automatic anti-rollover device that contains the described Vehicular multifunction rollover of claim 1 decision-making system, it is characterized in that, described device comprises described Vehicular multifunction rollover decision-making system and actuating unit, described actuating unit links to each other with described ECU and by its control action, described actuating unit comprises at least to be located on the described carriage frame and left side actuating unit and the right side actuating unit of symmetry, described left side actuating unit and described right side actuating unit include a telescopic shaft, and the support wheel of being located at the described telescopic shaft outside, described telescopic shaft all provides power by dynamical element, and control described telescopic shaft by driver element and carry out expanding-contracting action, initial condition, described support wheel is unsettled with respect to wheel and the ground of described vehicle, and its wheelspan is identical with the wheelspan of described vehicle.
5. automatic anti-rollover device as claimed in claim 4 is characterized in that, the front and rear of described carriage frame is respectively equipped with described actuating unit.
6. as claim 4 or 5 described automatic anti-rollover devices, it is characterized in that, described dynamical element comprises high pressure tank, electromagnetic valve and pipeline, described high pressure tank links to each other with described driver element through described electromagnetic valve by described pipeline, described electromagnetic valve also links to each other with described ECU, described driver element comprises cylinder, and described cylinder links to each other with described high pressure tank through described electromagnetic valve by described pipeline, and described cylinder also links to each other with described telescopic shaft by adapter plate.
7. as claim 4 or 5 described automatic anti-rollover devices, it is characterized in that, described dynamical element comprises hydraulic power unit, electromagnetic valve and pipeline, described hydraulic power unit links to each other with described driver element through described electromagnetic valve by described pipeline, described electromagnetic valve also links to each other with described ECU, described driver element comprises hydraulic actuating cylinder, and described hydraulic actuating cylinder links to each other with described hydraulic power unit through described electromagnetic valve by described pipeline, and described hydraulic actuating cylinder also links to each other with described telescopic shaft by adapter plate.
8. as claim 4 or 5 described automatic anti-rollover devices, it is characterized in that, described dynamical element comprises drive motor, described drive motor also links to each other with described ECU, described driver element comprises gear and the tooth bar that is meshed, described tooth bar is arranged on the described telescopic shaft, and described gear links to each other with described drive motor and passes through its driving.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110072592 CN102092374B (en) | 2011-03-24 | 2011-03-24 | Multi-functional vehicle rollover decision system and automatic rollover-preventing device |
| PCT/CN2012/072622 WO2012126353A1 (en) | 2011-03-24 | 2012-03-20 | Multi-functional vehicle rollover-detecting system and automatic anti-rollover device |
| US14/007,222 US8935048B2 (en) | 2011-03-24 | 2012-03-20 | Multi-function vehicle-rollover judgment system and automatic anti-rollover device |
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| CN 201110072592 CN102092374B (en) | 2011-03-24 | 2011-03-24 | Multi-functional vehicle rollover decision system and automatic rollover-preventing device |
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