CN203920324U - Vehicle suspension system and self-propelled vehicle - Google Patents
Vehicle suspension system and self-propelled vehicle Download PDFInfo
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- CN203920324U CN203920324U CN201420153365.3U CN201420153365U CN203920324U CN 203920324 U CN203920324 U CN 203920324U CN 201420153365 U CN201420153365 U CN 201420153365U CN 203920324 U CN203920324 U CN 203920324U
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- 239000000725 suspension Substances 0.000 title claims abstract description 59
- 238000004146 energy storage Methods 0.000 claims abstract description 77
- 239000007788 liquid Substances 0.000 claims description 61
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- 230000033001 locomotion Effects 0.000 description 16
- 239000012530 fluid Substances 0.000 description 13
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- 230000000694 effects Effects 0.000 description 8
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
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- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
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Abstract
The utility model provides a kind of vehicle suspension system and self-propelled vehicle, and this vehicle suspension system comprises: left front hydraulic actuating cylinder, and it possesses left front piston rod and left front cylinder barrel, and left front piston rod is connected with front left wheel assembly, and left front cylinder barrel is connected with vehicle body; Right front hydraulic actuating cylinder, left back hydraulic actuating cylinder, right back hydraulic actuating cylinder, structure is all similar with left front hydraulic actuating cylinder; The first hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel respectively; The second hydraulic circuit, the 3rd hydraulic circuit, the 4th hydraulic circuit, structure is all similar with the first hydraulic circuit; At least one first energy storage, it is arranged in the first hydraulic circuit; At least one second energy storage, at least one the 3rd energy storage, at least one the 4th energy storage, structure is all similar with the first energy storage.The utility model also provides a kind of similarly vehicle suspension system, and wherein, piston rod is connected with vehicle body and structure that hydraulic cylinder is connected with wheel set.
Description
Technical field
The utility model relates to vehicle structure field, relates in particular to the interconnected vehicle suspension system of a kind of hydraulic pressure and self-propelled vehicle.
Background technology
Suspension is the general name of all the power transmission connecting devices between vehicle frame (or self-supporting body) and vehicle bridge (or wheel).Its function is road surface to be acted on to moment that vertical reaction (supporting power) on wheel, longitudinally counter-force (tractive force and braking force) and lateral reaction and these counter-forces cause all will be delivered to vehicle frame (or self-supporting body) and go up, to ensure normally travelling of automobile.
On current most automobile, adopt passive type suspension.Passive type suspension is these mechanical component of elastic element, guide piece and shock absorber that automobile attitude (state) can only depend on road surface, travel conditions and automobile passively.Although passive type suspension has various version, generally all formed by elastic element, shock absorber and guiding mechanism.Steel spring is a kind of conventional elastic element, and Fig. 4 shows a kind of schematic diagram of Leaf Spring Suspension of routine.
All adopt the heavily loaded special car of steel spring for fore suspension and rear suspension, its working environment is more severe, empty fully loaded larger than very, so suspension rate generally designs greatlyr, suspension damping is less, when vehicle process uneven road surface, cause riding comfort bad, can produce harmful effect to the health of navigating mate.
In order to improve vehicular drive traveling comfort, by the stiffness degradation of the original suspension of vehicle, but softer other performances that can affect vehicle of suspension design are difficult to reach for traditional passive type suspension system and both can improve traveling comfort, increase again suspension system rigidity.
Because the fore suspension and rear suspension system of conventional truck is all mutually independently, the motion of a wheel can not produce to another wheel the effect of power, to vehicle pitching out of reach inhibit function.
In conventional truck, be to suppress roll force by Panhard rod, in the time that car body occurs to roll, described Panhard rod must produce torsional deflection.Due to be designed with the very large restriction of the meetings such as design to mechanical type horizontal stabilizer rod of structural form, installation site and all parts of wheel.In Vehicle Driving Cycle motion, while there is luffing or twisting motion, can produce harmful effect, increase human discomfort.
The statistics of American Highway security bureau shows, in all traffic accidents, the hazard rating of vehicle side turning accident is only second to automobile collision accident.The loss that vehicle side turning accident is brought is very big, and statistics shows, in the car accedent that Europe and North America cause casualties, rollover accident accounts for more than 20%.In recent years, because the traffic accident of the poor generation of the anti-rollover of automobile has caused people's extensive concern, the anti-rollover that improves automobile also became particularly important.The accident that automotive pitch causes is also very serious, the safety measure widespread uses such as safety air bag, anti-locking system for car, and during to reduction auto against and braking, accident rate has remarkable result.But how to solve and to roll and pitching problem or a challenge from suspension system.
Traditional suspension can't not be subject to, under the prerequisite of negative effect, to improve vehicle handling quality at travelling comfort, realizes the coordination control to ride comfort and road-holding property.
Utility model content
The purpose of this utility model is to provide cheap vehicle suspension system and the self-propelled vehicle compared with high safety factor that have that a kind of system architecture is simple, maintenance cost is low.
In order to realize above-mentioned utility model object, a kind of vehicle suspension system that the utility model provides, comprising: left front hydraulic actuating cylinder, and it possesses left front piston rod and left front cylinder barrel, and described left front piston rod is connected with front left wheel assembly, and described left front cylinder barrel is connected with vehicle body; Right front hydraulic actuating cylinder, it possesses right front piston rod and right front cylinder barrel, and described right front piston rod is connected with right front wheel assembly, and described right front cylinder barrel is connected with vehicle body; Left back hydraulic actuating cylinder, it possesses left back piston rod and left back cylinder barrel, and described left back piston rod is connected with left back wheel set, and described left back cylinder barrel is connected with vehicle body; Right back hydraulic actuating cylinder, it possesses right back piston rod and right back cylinder barrel, and described right back piston rod is connected with right rear wheel assembly, and described right back cylinder barrel is connected with vehicle body; The first hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel respectively; The second hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel respectively; The 3rd hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described right front cylinder barrel, described right back cylinder barrel respectively; The 4th hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described right front cylinder barrel, described right back cylinder barrel respectively; At least one first energy storage, it is arranged in described the first hydraulic circuit; At least one second energy storage, it is arranged in described the second hydraulic circuit; At least one the 3rd energy storage, it is arranged in described the 3rd hydraulic circuit; At least one the 4th energy storage, it is arranged in described the 4th hydraulic circuit.
Preferably, described the first hydraulic circuit comprises the first main branch road and branches out and the first left front branch road being communicated with the rodless cavity of described left front cylinder barrel respectively and the first left back branch road being communicated with the rodless cavity of described left back cylinder barrel from this first main branch road; Described the second hydraulic circuit comprises the second main branch road, branches out and the second left front branch road being communicated with the rod chamber of described left front cylinder barrel respectively and the second left back branch road being communicated with the rod chamber of described left back cylinder barrel from this second main branch road.
Preferably, described the 3rd hydraulic circuit comprises the 3rd main branch road and branches out and the 3rd right front branch road being communicated with the rodless cavity of described right front cylinder barrel respectively and the 3rd right back branch road being communicated with the rodless cavity of described right back cylinder barrel from the 3rd main branch road; Described the 4th hydraulic circuit comprises the 4th main branch road and branches out and the 4th right front branch road being communicated with the rod chamber of described right front cylinder barrel respectively and the 4th right back branch road being communicated with the rod chamber of described right back cylinder barrel from described the 4th main branch road.
Preferably, described the first energy storage is arranged on the middle part of described the first main branch road, described the second energy storage is arranged on the middle part of described the second main branch road, and described the 3rd energy storage is arranged on the middle part of described the 3rd main branch road, and described the 4th energy storage is arranged on the middle part of described the 4th main branch road.
Preferably, described the first energy storage possess the first liquid chamber of being communicated with described the first hydraulic circuit, the first air chamber of being oppositely arranged with described the first liquid chamber, flexible partition that described the first air chamber and described the first liquid chamber are separated and can be moved under pressure; The second air chamber that the second energy storage possesses the second liquid chamber of being communicated with described the second hydraulic circuit, be oppositely arranged with described the second liquid chamber, the flexible partition that described the second air chamber and described the second liquid chamber are separated and can be moved under pressure; The 3rd air chamber that described the 3rd energy storage possesses the 3rd liquid chamber that is communicated with described the 3rd hydraulic circuit, be oppositely arranged with described the 3rd liquid chamber, the flexible partition that described the 3rd air chamber and described the 3rd liquid chamber are separated and can be moved under pressure; The 4th air chamber that the 4th energy storage possesses the 4th liquid chamber that is communicated with described the 4th hydraulic circuit, be oppositely arranged with described the 4th liquid chamber, the flexible partition that described the 4th air chamber and described the 4th liquid chamber are separated and can be moved under pressure.
Preferably, described the first energy storage possess with described first hydraulic circuit be communicated with the first liquid chamber, the first spring member being oppositely arranged with described the first liquid chamber, be arranged on the first piston being connected between described the first liquid chamber and described the first spring member and with described the first spring member; Described the second energy storage possess with described second hydraulic circuit be communicated with the second liquid chamber, the second spring member being oppositely arranged with described the second liquid chamber, be arranged on the second piston being connected between described the second liquid chamber and described the second spring member and with described the second spring member; Described the 3rd energy storage possess with described the 3rd hydraulic circuit be communicated with the 3rd liquid chamber, the 3rd spring member being oppositely arranged with described the 3rd liquid chamber, be arranged on the 3rd piston being connected between described the 3rd liquid chamber and described the 3rd spring member and with described the 3rd spring member; Described the 4th energy storage possess with described the 4th hydraulic circuit be communicated with the 4th liquid chamber, the 4th spring member being oppositely arranged with described the 4th liquid chamber, be arranged on the 4th piston being connected between described the 4th liquid chamber and described the 4th spring member and with described the 4th spring member.
Preferably, described the first hydraulic circuit is] shape; Described the second hydraulic circuit is] shape.
Preferably, described the 3rd hydraulic circuit is [shape; Described the 4th hydraulic circuit is [shape.
In order to realize foregoing invention object, a kind of vehicle suspension system that the utility model provides, comprising: left front hydraulic actuating cylinder, and it possesses left front piston rod and left front cylinder barrel, and described left front cylinder barrel is connected with front left wheel assembly, and described left front piston rod is connected with vehicle body; Right front hydraulic actuating cylinder, it possesses right front piston rod and right front cylinder barrel, and described right front cylinder barrel is connected with right front wheel assembly, and described right front piston rod is connected with vehicle body; Left back hydraulic actuating cylinder, it possesses left back piston rod and left back cylinder barrel, and described left back cylinder barrel is connected with left back wheel set, and described left back piston rod is connected with vehicle body; Right back hydraulic actuating cylinder, it possesses right back piston rod and right back cylinder barrel, and described right back cylinder barrel is connected with right rear wheel assembly, and described right back piston rod is connected with vehicle body; The first hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel respectively; The second hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel respectively; The 3rd hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described right front cylinder barrel, described right back cylinder barrel respectively; The 4th hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described right front cylinder barrel, described right back cylinder barrel respectively; At least one first energy storage, it is arranged in described the first hydraulic circuit; At least one second energy storage, it is arranged in described the second hydraulic circuit; At least one the 3rd energy storage, it is arranged in described the 3rd hydraulic circuit; At least one the 4th energy storage, it is arranged in described the 4th hydraulic circuit.
In order to realize foregoing invention object, a kind of self-propelled vehicle that the utility model provides, it comprises above-mentioned vehicle suspension system.
The interconnected suspension system of hydraulic pressure that passive type suspension system of the present utility model can resist inclination to improve vehicle riding comfort simultaneously can improve roll rate simultaneously, effectively improves vehicle stability.
The utility model is the improvement of existing vehicle suspension system, especially under the different travel conditions of vehicle, and the corresponding function that this has of vehicle suspension system.The connection mode of oil pipe depends on car body state, and the switching of its connection mode does not need solenoid control to complete, and improves the stability of system; Passive interconnected suspension does not need external energy input, and not consumption of engine power and fuel oil, is conducive to save cost, and more simple and reliable for structure than active suspension, cost is low, is easy to realize.
Brief description of the drawings
Fig. 1 is the structural representation of vehicle suspension system of the present utility model.
Fig. 2 is a kind of schematic structure cutaway view of the energy storage of vehicle suspension system of the present utility model.
Fig. 3 is the another kind of schematic structure cutaway view of the energy storage of vehicle suspension system of the present utility model.
Fig. 4 is the constructional drawing of vehicle suspension system in the past.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, but the utility model is not limited to these drawings and Examples.The 'fornt', 'back' with described in figure below, " left side ", " right side ", " on ", D score is all taking the automobile suspension system shown in Fig. 1 as benchmark.
As shown in Figure 1, vehicle suspension system 1 of the present utility model comprises left front hydraulic actuating cylinder 2, right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, right back hydraulic actuating cylinder 8, the first hydraulic circuit 39 and the second hydraulic circuit 79 that are all connected respectively with left front hydraulic actuating cylinder 2 and left back hydraulic actuating cylinder 6 respectively, the 3rd hydraulic circuit 59 and the 4th hydraulic circuit 99 that are all connected respectively with right front hydraulic actuating cylinder 4 and right back hydraulic actuating cylinder 8 respectively, be arranged on the first energy storage 3 in the first hydraulic circuit 39, be arranged on the second energy storage 7 in the second hydraulic circuit 79, be arranged on the 3rd energy storage 5 in the 3rd hydraulic circuit 59 and be arranged on the 4th energy storage 9 in the 4th hydraulic circuit 99.
Left front hydraulic actuating cylinder 2 comprises left front piston rod 20 and is mated the left front cylinder barrel 22 of use.Left front piston rod 20 is connected with vehicle the near front wheel assembly (omitting diagram), and left front cylinder barrel 22 is connected with vehicle body, and left front piston rod 20 can produce relative motion with left front cylinder barrel 22, thereby to the fluid generation effect in left front cylinder barrel 22.Wherein, the top of left front cylinder barrel 22 is rodless cavity 220 without the part of left front piston rod 20, and the bottom of left front cylinder barrel 22 is rod chamber 222 with the part of left front piston rod 20.
Right front hydraulic actuating cylinder 4 has right front piston rod 40, right front cylinder barrel 42, rodless cavity 420 and rod chamber 422; Left back hydraulic actuating cylinder 6 has left back piston rod 60, left back cylinder barrel 62, rodless cavity 620 and rod chamber 622; Right back hydraulic actuating cylinder 8 has right back piston rod 80, right back cylinder barrel 82, rodless cavity 820 and rod chamber 822.Right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, right back hydraulic actuating cylinder 8 have identical structure with left front hydraulic actuating cylinder 2, do not repeat at this.
Please continue to refer to Fig. 1, the first hydraulic circuit 39 is connected left front hydraulic actuating cylinder 2 with left back hydraulic actuating cylinder 6.Particularly, the first hydraulic circuit 39 comprises: the first main branch road 31, branch out and the first left front branch road 33 being communicated with the rodless cavity 220 of left front hydraulic actuating cylinder 2 respectively and the first left back branch road 35 being communicated with the rodless cavity 620 of left back hydraulic actuating cylinder 6 from this first main branch road 31.
The second hydraulic circuit 79 equally also connects left front hydraulic actuating cylinder 2, left back hydraulic actuating cylinder 6.Particularly, the second hydraulic circuit 7 comprises: the second main branch road 71, branch out and the second left front branch road 73 being communicated with the rod chamber 222 of left front hydraulic actuating cylinder 2 respectively and the second left back branch road 75 being communicated with the rod chamber 622 of left back hydraulic actuating cylinder 6 from this second main branch road 71.
The 3rd hydraulic circuit 59 connects right front hydraulic actuating cylinder 4, right back hydraulic actuating cylinder 8.Particularly, the 3rd hydraulic circuit 59 comprises: the 3rd main branch road 51, branch out and the 3rd right front branch road 53 being communicated with the rodless cavity 420 of right front hydraulic actuating cylinder 4 respectively and the 3rd right back branch road 55 being communicated with the rodless cavity 820 of right back hydraulic actuating cylinder 8 from the 3rd main branch road 51.
The 4th hydraulic circuit 99 equally also connects right front hydraulic actuating cylinder 4, right back hydraulic actuating cylinder 8.Particularly, the 4th hydraulic circuit 99 comprises: the 4th main branch road 91, branch out and the 4th right front branch road 93 being communicated with the rod chamber 422 of right front hydraulic actuating cylinder 4 respectively and the 4th right back branch road 95 being communicated with the rod chamber 822 of right back hydraulic actuating cylinder 8 from the 4th main branch road 91.
In preferred embodiment of the present utility model, the first hydraulic circuit 39 and the second hydraulic circuit 79 respectively preferably with] linear structure of shape realizes and being connected, the 3rd hydraulic circuit 59 is distinguished preferably so that [linear structure of shape is realized and being connected with the 4th hydraulic circuit 99, thereby shortening flow path of the liquid, reduces hydraulic loss.As shown in Figure 1, here] shape refers to that overall profile is essentially] shape, here [shape refers to that overall profile is essentially [shape.
As shown in Figures 1 and 2, the first energy storage 3 is arranged in the first hydraulic circuit 39, it comprise the first liquid chamber 34 of being communicated with the first hydraulic circuit 3, and the first air chamber 30 of the first liquid chamber 34 opposite settings and this first liquid chamber 34 is set and the first air chamber 30 between the first barrier film 32.In the first liquid chamber 34, be filled with hydraulic fluid, in the first air chamber 30, be filled with gas, its internal pressure presets.Thereby for vehicle suspension system provides extra roll rate and vertical stiffness.
In the time that the hydraulic pressure in the first hydraulic circuit 39 increases, hydraulic pressure in the first liquid chamber 34 increases, thereby the first barrier film 32 is under pressure and moves right and push the first air chamber 30, thereby the air pressure in the first air chamber 30 constantly increases, until the left and right sides equilibrium of pressure of the first barrier film 32.There is side-to-side movement for several times in the first barrier film 32, until finally obtain equilibrium of pressure before stop motion.Thus, the first energy storage 3 plays the buffering and the liquid storage effect that absorb hydraulic efficiency impact.Otherwise in the time that the hydraulic pressure in the first hydraulic circuit 39 reduces, the pressure of the first air chamber 30 is greater than the pressure of the first liquid chamber 34, thus the first barrier film 32 to left movement, and persistent movement is until the first barrier film 32 left and right equilibrium of pressures.The effects such as absorption hydraulic efficiency impact, fluid infusion of mainly playing of the first energy storage 3.
The second energy storage 7 has the second liquid chamber 74, the second barrier film 72 and the second air chamber 70.The 3rd energy storage 5 has the 3rd liquid chamber 54, the 3rd barrier film 52 and the 3rd air chamber 50.The 4th energy storage 9 has the 4th liquid chamber 94, the 4th barrier film 92 and the 4th air chamber 90.The second energy storage 7, the 3rd energy storage 5 and the 4th energy storage 9 all have the 26S Proteasome Structure and Function effect that the first energy storage 3 is identical, therefore its structure are not repeated at this.
Fig. 3 is the another kind of schematic structure cutaway view of the energy storage of vehicle suspension system of the present utility model.Except the energy storage of Fig. 2 said structure, can also adopt the energy storage of other structures.As shown in Figure 3, barrier film can be replaced with to piston; In addition, air chamber, membrane configuration can also be replaced with to spring, piston structure, left side is still for liquid chamber, centre are that piston structure, right side are the spring structure being connected with this piston mechanism.
In addition, in a preferred embodiment of the present utility model, in addition, in a preferred embodiment of the present utility model, the first energy storage 3 is arranged on the first main branch road 31 of the first hydraulic circuit 39, is more preferably arranged on the middle part of above-mentioned the first main branch road 31.The second energy storage 7 is arranged on the second main branch road 71 of the second hydraulic circuit 79, is more preferably arranged on the middle part of above-mentioned the second main branch road 71.The 3rd energy storage 5 is arranged on the 3rd main branch road 51 of the 3rd hydraulic circuit 59, is more preferably arranged on the middle part of above-mentioned the 3rd main branch road 51.The 4th energy storage 9 is arranged on the 4th main branch road 91 of the 4th hydraulic circuit 99, is more preferably arranged on the middle part of above-mentioned the 4th main branch road 91.Like this, can realize evenly buffering and fluid infusion effect.In addition, the quantity of the energy storage on each hydraulic circuit can be multiple.
Under the different conditions of different road shapes or Vehicle Driving Cycle, when above-mentioned hydraulic actuating cylinder 2,4,6,8 has relative motion between vehicle body or chassis and wheel set, in above-mentioned hydraulic actuating cylinder 2,4,6,8, corresponding one or several will be compressed or stretch, thereby cause the fluid in above-mentioned hydraulic circuit 39,59,79,99 to produce mobile, will certainly cause the fluid of in above-mentioned hydraulic circuit 39,59,79,99 to flow in energy storage 3,5,7,9, the fluid in another hydraulic circuit flows out from another energy storage.
Below, vehicle suspension system 1 of the present utility model is described in detail.
When vehicle is in the tempo turn of straight road surface or while at a high speed keeping away the travel conditions of barrier, can there is roll motion with respect to wheel in car body, suppose that vehicle has rollover trend left, there is the trend of downward motion on vehicle body relative ground in left side, and the movement tendency of vehicle body relative ground in right side on oriented.Four wheels on straight road surface are motionless with respect to ground, the cylinder barrel of left side hydraulic actuating cylinder 2,6 has downward movement tendency with vehicle body with respect to piston rod, the cylinder barrel of right side hydraulic actuating cylinder 4,8 has movement tendency upwards with vehicle body with respect to piston rod simultaneously, now the fluid in loop 39,99 flows in energy storage 3,9 by compression, fluid in loop 59,79, owing to will supplementing the partial volume of hydraulic cylinder 2,6 rod chambers and the partial volume of hydraulic cylinder 4,8 rodless cavities, need to flow out from energy storage 5,7.The Preliminary pressure-filled of energy storage is certain, the operation pressure of hydraulic efficiency pressure system is certain, in the time of liquid motion in loop, can cause two pressure differences in loop, thereby cause certain difference of pressure, now the rodless cavity pressure of hydraulic actuating cylinder 2,6 is greater than the pressure of rod chamber, and the rodless cavity pressure of hydraulic actuating cylinder 4,8 is less than the pressure of rod chamber.Suppress thereby produce the roll force that vehicle body rolls left, vehicle body is returned to level attitude by the bank moment producing therefrom, thereby reach the effect of anti-inclination.While returning to horizontal motoring condition, the pressure in two loops of hydraulic efficiency pressure system reaches balance, until next travel conditions occurs.
In the time that vehicle is on the road surface of jolting, when vehicle body moves downward with respect to wheel simultaneously, now hydraulic actuating cylinder 2, 4, 6, 8 rodless cavity volume all reduces, the volume of rod chamber all increases simultaneously, so hydraulic actuating cylinder 2, fluid in 6 rodless cavity can flow in the energy storage 3 of hydraulic circuit 39 correspondences, hydraulic actuating cylinder 4, fluid in 8 rodless cavities can flow in the energy storage 5 of hydraulic circuit 59 correspondences, make 39, article 59 two, the pressure in loop raises, and loop 79, pressure drop in 99, thereby build-up of pressure is poor between the rodless cavity of four hydraulic actuating cylinders and rod chamber, weaken the trend that vehicle body entirety moves downward.Thereby make vehicle recover normal motoring condition, improve the riding comfort of vehicle.
When vehicle is on distortion road surface, suppose left front and right back wheel upward movement and right front and left back wheel while moving downward, the fluid of hydraulic actuating cylinder 2,8 rodless cavities just flow in the rodless cavity of hydraulic actuating cylinder 4,6, not having unnecessary fluid flow in energy storage, so can not cause two pressure in loop to change, therefore the torsional stiffness of vehicle not had to too large impact.
Reading above word can find out, adopts passive type suspension system 1 of the present utility model can resist inclination, effectively improves vehicle stability, can also improve vehicle riding comfort simultaneously.
On the other hand, the suspension system that is called as " initiatively " and " half initiatively " of having tried out on vehicle, in the time adopting these systems, also with hydraulic oil pump, system works pressure is remained on to needed force value, but also be equipped with very complicated electronic control package, with according to the action of the road surface of detecting or the motoring condition adjustable suspension system of vehicle." initiatively " more expensive with manufacture and the maintenance cost of " half initiatively " suspension system, and need larger energy input, taking cost into account, make it in automotive industry, have very large limitation.The connection mode of suspension system 1 oil pipe of the present utility model depends on car body state, and the switching of its connection mode does not need solenoid control to complete, and improves the stability of system; Passive interconnected suspension does not need external energy input, and not consumption of engine power and fuel oil, is conducive to save cost, and more simple and reliable for structure than active suspension, cost is low, is easy to realize.
It should be noted that, the structure that piston is connected with wheel set although embodiment of the present utility model illustrates that hydraulic cylinder is connected with vehicle body, but it will be understood by those skilled in the art that, also hydraulic cylinder and piston can be inverted to the structure that hydraulic cylinder is connected with wheel set thereby formation piston rod is connected with vehicle body.Correspondingly, also corresponding change of the rod chamber of each hydraulic circuit and each hydraulic actuating cylinder and rodless cavity connection.
It should be pointed out that for the professional and technical personnel who makes the art, do not departing under the prerequisite of the utility model know-why, is to realize multiple amendment to above-described embodiment, and these amendments also should be considered as in scope that the utility model should protect.
Claims (10)
1. a vehicle suspension system, is characterized in that, comprising:
Left front hydraulic actuating cylinder, it possesses left front piston rod and left front cylinder barrel, and described left front piston rod is connected with front left wheel assembly, and described left front cylinder barrel is connected with vehicle body;
Right front hydraulic actuating cylinder, it possesses right front piston rod and right front cylinder barrel, and described right front piston rod is connected with right front wheel assembly, and described right front cylinder barrel is connected with vehicle body;
Left back hydraulic actuating cylinder, it possesses left back piston rod and left back cylinder barrel, and described left back piston rod is connected with left back wheel set, and described left back cylinder barrel is connected with vehicle body;
Right back hydraulic actuating cylinder, it possesses right back piston rod and right back cylinder barrel, and described right back piston rod is connected with right rear wheel assembly, and described right back cylinder barrel is connected with vehicle body;
The first hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel respectively;
The second hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel respectively;
The 3rd hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described right front cylinder barrel, described right back cylinder barrel respectively;
The 4th hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described right front cylinder barrel, described right back cylinder barrel respectively;
At least one first energy storage, it is arranged in described the first hydraulic circuit;
At least one second energy storage, it is arranged in described the second hydraulic circuit;
At least one the 3rd energy storage, it is arranged in described the 3rd hydraulic circuit;
At least one the 4th energy storage, it is arranged in described the 4th hydraulic circuit.
2. vehicle suspension system according to claim 1, it is characterized in that, described the first hydraulic circuit comprises the first main branch road and branches out and the first left front branch road being communicated with the rodless cavity of described left front cylinder barrel respectively and the first left back branch road being communicated with the rodless cavity of described left back cylinder barrel from this first main branch road; Described the second hydraulic circuit comprises the second main branch road, branches out and the second left front branch road being communicated with the rod chamber of described left front cylinder barrel respectively and the second left back branch road being communicated with the rod chamber of described left back cylinder barrel from this second main branch road.
3. vehicle suspension system according to claim 2, it is characterized in that, described the 3rd hydraulic circuit comprises the 3rd main branch road and branches out and the 3rd right front branch road being communicated with the rodless cavity of described right front cylinder barrel respectively and the 3rd right back branch road being communicated with the rodless cavity of described right back cylinder barrel from the 3rd main branch road; Described the 4th hydraulic circuit comprises the 4th main branch road and branches out and the 4th right front branch road being communicated with the rod chamber of described right front cylinder barrel respectively and the 4th right back branch road being communicated with the rod chamber of described right back cylinder barrel from described the 4th main branch road.
4. vehicle suspension system according to claim 3, it is characterized in that, described the first energy storage is arranged on the middle part of described the first main branch road, described the second energy storage is arranged on the middle part of described the second main branch road, described the 3rd energy storage is arranged on the middle part of described the 3rd main branch road, and described the 4th energy storage is arranged on the middle part of described the 4th main branch road.
5. vehicle suspension system according to claim 4, it is characterized in that the first air chamber that described the first energy storage possesses the first liquid chamber of being communicated with described the first hydraulic circuit, be oppositely arranged with described the first liquid chamber, the flexible partition that described the first air chamber and described the first liquid chamber are separated and can be moved under pressure; The second air chamber that the second energy storage possesses the second liquid chamber of being communicated with described the second hydraulic circuit, be oppositely arranged with described the second liquid chamber, the flexible partition that described the second air chamber and described the second liquid chamber are separated and can be moved under pressure; The 3rd air chamber that described the 3rd energy storage possesses the 3rd liquid chamber that is communicated with described the 3rd hydraulic circuit, be oppositely arranged with described the 3rd liquid chamber, the flexible partition that described the 3rd air chamber and described the 3rd liquid chamber are separated and can be moved under pressure; The 4th air chamber that the 4th energy storage possesses the 4th liquid chamber that is communicated with described the 4th hydraulic circuit, be oppositely arranged with described the 4th liquid chamber, the flexible partition that described the 4th air chamber and described the 4th liquid chamber are separated and can be moved under pressure.
6. vehicle suspension system according to claim 4, it is characterized in that, described the first energy storage possess with described first hydraulic circuit be communicated with the first liquid chamber, the first spring member being oppositely arranged with described the first liquid chamber, be arranged on the first piston being connected between described the first liquid chamber and described the first spring member and with described the first spring member; Described the second energy storage possess with described second hydraulic circuit be communicated with the second liquid chamber, the second spring member being oppositely arranged with described the second liquid chamber, be arranged on the second piston being connected between described the second liquid chamber and described the second spring member and with described the second spring member; Described the 3rd energy storage possess with described the 3rd hydraulic circuit be communicated with the 3rd liquid chamber, the 3rd spring member being oppositely arranged with described the 3rd liquid chamber, be arranged on the 3rd piston being connected between described the 3rd liquid chamber and described the 3rd spring member and with described the 3rd spring member; Described the 4th energy storage possess with described the 4th hydraulic circuit be communicated with the 4th liquid chamber, the 4th spring member being oppositely arranged with described the 4th liquid chamber, be arranged on the 4th piston being connected between described the 4th liquid chamber and described the 4th spring member and with described the 4th spring member.
7. vehicle suspension system according to claim 2, is characterized in that, described the first hydraulic circuit is] shape; Described the second hydraulic circuit is] shape.
8. according to the vehicle suspension system described in claim 2 or 3, it is characterized in that, described the 3rd hydraulic circuit is [shape; Described the 4th hydraulic circuit is [shape.
9. a vehicle suspension system, is characterized in that, comprising:
Left front hydraulic actuating cylinder, it possesses left front piston rod and left front cylinder barrel, and described left front cylinder barrel is connected with front left wheel assembly, and described left front piston rod is connected with vehicle body;
Right front hydraulic actuating cylinder, it possesses right front piston rod and right front cylinder barrel, and described right front cylinder barrel is connected with right front wheel assembly, and described right front piston rod is connected with vehicle body;
Left back hydraulic actuating cylinder, it possesses left back piston rod and left back cylinder barrel, and described left back cylinder barrel is connected with left back wheel set, and described left back piston rod is connected with vehicle body;
Right back hydraulic actuating cylinder, it possesses right back piston rod and right back cylinder barrel, and described right back cylinder barrel is connected with right rear wheel assembly, and described right back piston rod is connected with vehicle body;
The first hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel respectively;
The second hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel respectively;
The 3rd hydraulic circuit, it possesses two ports that are connected with the rodless cavity of the rodless cavity of described right front cylinder barrel, described right back cylinder barrel respectively;
The 4th hydraulic circuit, it possesses two ports that are connected with the rod chamber of the rod chamber of described right front cylinder barrel, described right back cylinder barrel respectively;
At least one first energy storage, it is arranged in described the first hydraulic circuit;
At least one second energy storage, it is arranged in described the second hydraulic circuit;
At least one the 3rd energy storage, it is arranged in described the 3rd hydraulic circuit;
At least one the 4th energy storage, it is arranged in described the 4th hydraulic circuit.
10. a self-propelled vehicle, is characterized in that having the vehicle suspension system described in the claims 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153365.3U CN203920324U (en) | 2014-03-31 | 2014-03-31 | Vehicle suspension system and self-propelled vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153365.3U CN203920324U (en) | 2014-03-31 | 2014-03-31 | Vehicle suspension system and self-propelled vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203920324U true CN203920324U (en) | 2014-11-05 |
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ID=51816190
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153365.3U Expired - Lifetime CN203920324U (en) | 2014-03-31 | 2014-03-31 | Vehicle suspension system and self-propelled vehicle |
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| Country | Link |
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| CN (1) | CN203920324U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863050A (en) * | 2014-03-31 | 2014-06-18 | 常州万安汽车部件科技有限公司 | Vehicle suspension system and motor vehicle |
| CN105459751A (en) * | 2016-01-04 | 2016-04-06 | 管中林 | Bearing pressure interconnected system for shock absorbers of wheeled armored vehicles and missile transporting vehicles |
| CN105691140A (en) * | 2016-01-04 | 2016-06-22 | 管中林 | Pressure shock mitigation system of wheeled armored missile transporter vehicle |
| CN106671722A (en) * | 2016-12-20 | 2017-05-17 | 江苏大学 | Four-joint type energy feedback suspension mechanism |
| CN111114235A (en) * | 2020-01-06 | 2020-05-08 | 广东博智林机器人有限公司 | Self-adaptation suspension chassis frame, self-adaptation chassis and vehicle |
-
2014
- 2014-03-31 CN CN201420153365.3U patent/CN203920324U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863050A (en) * | 2014-03-31 | 2014-06-18 | 常州万安汽车部件科技有限公司 | Vehicle suspension system and motor vehicle |
| CN105459751A (en) * | 2016-01-04 | 2016-04-06 | 管中林 | Bearing pressure interconnected system for shock absorbers of wheeled armored vehicles and missile transporting vehicles |
| CN105691140A (en) * | 2016-01-04 | 2016-06-22 | 管中林 | Pressure shock mitigation system of wheeled armored missile transporter vehicle |
| CN106671722A (en) * | 2016-12-20 | 2017-05-17 | 江苏大学 | Four-joint type energy feedback suspension mechanism |
| CN106671722B (en) * | 2016-12-20 | 2019-02-05 | 江苏大学 | A kind of fourth-coupling type feed energy suspension mechanism |
| CN111114235A (en) * | 2020-01-06 | 2020-05-08 | 广东博智林机器人有限公司 | Self-adaptation suspension chassis frame, self-adaptation chassis and vehicle |
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Granted publication date: 20141105 |