CN103863049A - Vehicle suspension system and motor vehicle - Google Patents
Vehicle suspension system and motor vehicle Download PDFInfo
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- CN103863049A CN103863049A CN201410127449.4A CN201410127449A CN103863049A CN 103863049 A CN103863049 A CN 103863049A CN 201410127449 A CN201410127449 A CN 201410127449A CN 103863049 A CN103863049 A CN 103863049A
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Abstract
The invention provides a vehicle suspension system. The vehicle suspension system comprises a left front hydraulic cylinder, a right front hydraulic cylinder, a left rear hydraulic cylinder, a right rear hydraulic cylinder, a first hydraulic circuit, a second hydraulic circuit, at least one first energy accumulator and at least one second energy accumulator. The left front hydraulic cylinder comprises a left front piston rod and a left front cylinder, wherein the left front piston rod is connected with a left front wheel assembly, and the left front hydraulic cylinder is connected with a vehicle body. The structures of the right front hydraulic cylinder, the left rear hydraulic cylinder and the right rear hydraulic cylinder are similar to the structure of the left front hydraulic cylinder. The first hydraulic circuit comprises four ports communicated with a rodless cavity of the left front cylinder, a rodless cavity of a left rear cylinder, a rod cavity of a right front cylinder and a rod cavity of a right rear cylinder respectively. The structure of the second hydraulic circuit is similar to the structure of the first hydraulic circuit. The first energy accumulator is arranged in the first hydraulic circuit. The structure of the second energy accumulator is similar to the structure of the first energy accumulator. The invention further provides a similar vehicle suspension system which is of the structure that the piston rod is connected with the vehicle body and the hydraulic cylinders are connected with the wheel assembly. The invention further provides a motor vehicle with the suspension system.
Description
Technical field
The present invention relates to vehicle structure field, relate in particular to the interconnected vehicle suspension system of a kind of hydraulic pressure and self-propelled vehicle.
Background technology
Total well-known, the development of auto trade is maked rapid progress, and safety, as one of significant consideration of vehicle performance, has become the primary factor of considering when numerous car owners purchase car gradually.
The safety system of vehicle is mainly divided into two large classes, i.e. active safety system and passive safety system.
Active safety system refers to, before vehicle has an accident, can play the system of taking precautions against in possible trouble, its objective is the stability that improves Vehicle Driving Cycle, reduces the deviation of manipulation.For example common anti-skid brake system (ABS), has anti-skidding, anti-locking function, can effectively improve deceleration and stopping performance, prevents whipping, sideslip; EBD (Electric Brakeforce Distribution) (EBD), can regulate the brakig force distribution ratio of axle automatically, improves brake efficiency, can shorten to a certain extent stopping distance; And coordinate ABS to improve insensitivity; Drive in addition anti-skid device (ASR), can avoid vehicle to accelerate time, drive wheel skids, and maintains the stability of vehicle heading.
Passive safety system refers to, in the situation that cannot avoiding collision case, only reliable vehicle protection itself is clashed into, and drops to minimum device by clashing into injury.The steel plate of vehicle, body structure, safety strap, safety air bag, headrest, bearing circle and the brake pedal etc. of shrinkable is all the important component part of passive security
With regard to active safety, suppressing vehicle rollover is the important examination factor of vehicle performance.Investigation shows, in all traffic accidents, the hazard rating of vehicle rollover accident is only second to vehicle collision accident, in recent years, and because the loss that the rollover accident of vehicle is brought is huge.Consider the anti-rollover poor-performing of conventional suspension systems, therefore, how to improve from suspension system, improve the anti-rollover performance of vehicle and don't affect the travelling comfort of vehicle, realizing the coordination control to ride comfort and road-holding property, is actual urgent problem.
As shown in Figure 4, the suspension system of most of vehicles in the past generally provides the inclination of being made up of spring steel or waves stabilizer rod 1000, these inclinations or yaw stabilizer rod 1000 interconnect with two wheel set 1002 mechanicalnesses on each axletree, thereby restriction roll motion, but can not suppress luffing, increase warping rigidity simultaneously, other road-holding property of vehicle have been caused to negative effect.
Summary of the invention
The object of the present invention 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 foregoing invention object, a kind of vehicle suspension system provided by the invention, 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 four ports that are connected with the rod chamber of the rod chamber of the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel, described right front cylinder barrel, described right back cylinder barrel respectively; The second hydraulic circuit, it possesses four ports that are connected with the rodless cavity of the rodless cavity of the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel, 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.
Preferably, described the first hydraulic circuit comprises: the first main branch road, branch out and the first left front branch road of being communicated with the rodless cavity of described left front cylinder barrel and the rodless cavity of described left back cylinder barrel respectively and the first left back branch road, branch out and the first right front branch road and the first right back branch road that are communicated with the rod chamber of described right front cylinder barrel and the rod chamber of described right back cylinder barrel respectively from described the first main branch road from this first main branch road.
Preferably, described the second hydraulic circuit comprises: the second main branch road, branch out and the second left front branch road of being communicated with the rod chamber of described left front cylinder barrel and the rod chamber of described left back cylinder barrel respectively and the second left back branch road, branch out and the second right front branch road and the second right back branch road that are communicated with the rodless cavity of described right front cylinder barrel and the rodless cavity of described right back cylinder barrel respectively from described the second main branch road from this second main branch road.
Preferably, described the first energy storage is arranged on the middle part of described the first main branch road, and described the second energy storage is arranged on the middle part of described the second 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.
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.
Preferably, described the first hydraulic circuit is X-shaped shape.
Preferably, described the second hydraulic circuit is X-shaped shape.
In order to realize foregoing invention object, a kind of vehicle suspension system provided by the invention, 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 four ports that are connected with the rodless cavity of the rodless cavity of the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel, described right front cylinder barrel, described right back cylinder barrel respectively; The second hydraulic circuit, it possesses four ports that are connected with the rod chamber of the rod chamber of the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel, 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.
In order to realize foregoing invention object, a kind of self-propelled vehicle provided by the invention, has above-mentioned vehicle suspension system.
By adopting the interconnected suspension system of hydraulic pressure of the present invention, not only can improve the anti-inclination performance of vehicle, and not affect again the ride comfort of Vehicle Driving Cycle, simultaneously very little on other road-holding property impacts of vehicle.The present invention can retain the spring of the original suspension system of vehicle and traditional cartridge type telescopic type absorber, but without retaining mechanical Panhard rod.
Vehicle of the present invention, in the time keeping away barrier or tempo turn at a high speed, is equipped with the vehicle of the interconnected suspension of hydraulic pressure without adopting roll stable bar just can suppress by hydraulic pressure mutual contact mode the roll motion of vehicle.
The present invention 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.There are now many alternative interconnected suspension, can provide the various functions that may select with respect to the various different shapes of the motion of car body according to wheel.This system has been avoided the shortcomings such as the high and inconvenient maintenance of complexity, the cost of active suspension system, and possesses corresponding function, thereby is more adapted at the widespread use in automotive industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle suspension system of the present invention.
Fig. 2 is the schematic structure cutaway view of the energy storage of vehicle suspension system of the present invention.
Fig. 3 is the another kind of schematic structure cutaway view of the energy storage of vehicle suspension system of the present invention.
Fig. 4 is the constructional drawing of vehicle suspension system in the past.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but the present invention 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 take the automobile suspension system shown in Fig. 1 as benchmark.
As shown in Figure 1, vehicle suspension system 1 of the present invention comprise left front hydraulic actuating cylinder 2, right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, right back hydraulic actuating cylinder 8, respectively be all connected respectively with above-mentioned hydraulic actuating cylinder the first hydraulic circuit 3 and the second hydraulic circuit 7, be arranged on the first energy storage 5 in the first hydraulic circuit 3 and be arranged on the second energy storage 9 in the second hydraulic circuit 7.
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 3 connects left front hydraulic actuating cylinder 2, right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, right back hydraulic actuating cylinder 8.Particularly, the first hydraulic circuit 3 comprises: the first main branch road 31, branch out and the first left front branch road 30 and the first left back branch road 32 being communicated with the rodless cavity 620 of left back hydraulic actuating cylinder 6 that are communicated with the rodless cavity 220 of left front hydraulic actuating cylinder 2 respectively, branch out and the first right front branch road 34 being communicated with the rod chamber 422 of right front hydraulic actuating cylinder 4 respectively and the first right back branch road 36 being communicated with the rod chamber 822 of right back hydraulic actuating cylinder 8 from this first main branch road 31 from this first main branch road 31.
The second hydraulic circuit 7 equally also connects left front hydraulic actuating cylinder 2, right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, right back hydraulic actuating cylinder 8.Particularly, the second hydraulic circuit 7 comprises: the second main branch road 71, branch out and the second left front branch road 70 and the second left back branch road 72 being communicated with the rod chamber 622 of left back hydraulic actuating cylinder 6 that are communicated with the rod chamber 222 of left front hydraulic actuating cylinder 2 respectively, branch out and the second right front branch road 74 being communicated with the rodless cavity 420 of right front hydraulic actuating cylinder 4 respectively and the second right back branch road 76 being communicated with the rodless cavity 820 of right back hydraulic actuating cylinder 8 from this second main branch road 71 from this second main branch road 71.
In a preferred embodiment of the invention, the first hydraulic circuit 3 is preferably realized and being connected with the linear structure of X-shaped shape respectively with the second hydraulic circuit 7, thereby shortens flow path of the liquid, reduces hydraulic loss.As shown in Figure 1, the X-shaped shape here refers to that overall profile is essentially X-shaped shape.
As shown in Figures 1 and 2, the first energy storage 5 is arranged in the first hydraulic circuit 3, it comprise the first liquid chamber 54 of being communicated with the first hydraulic circuit 3, and the first air chamber 50 of the first liquid chamber 54 opposite settings and this first liquid chamber 54 is set and the first air chamber 50 between the first barrier film 52.In the first liquid chamber 54, be filled with hydraulic fluid, in the first air chamber 50, be filled with gas, its internal pressure presets.Thereby for vehicle suspension system provides extra roll rate.
In the time that the hydraulic pressure in the first hydraulic circuit 3 increases, hydraulic pressure in the first liquid chamber 54 increases, thereby the first barrier film 52 is under pressure and moves right and push the first air chamber 50, thereby the air pressure in the first air chamber 50 constantly increases, until the left and right sides equilibrium of pressure of the first barrier film 52.There is side-to-side movement for several times in the first barrier film 52, until finally obtain equilibrium of pressure before stop motion.Thus, the first energy storage 5 plays the buffer action of hydraulic efficiency impact, the effect of storage liquid of absorbing.Otherwise in the time that the hydraulic pressure in the first hydraulic circuit 3 reduces, the pressure of the first air chamber 50 is greater than the pressure of the first liquid chamber 54, thus the first barrier film 52 to left movement, and persistent movement is until the first barrier film 52 left and right equilibrium of pressures.The effects such as absorption hydraulic efficiency impact, fluid infusion of mainly playing of the first energy storage 5.
The second energy storage 9 has the second liquid chamber 94, the second barrier film 92 and the second air chamber 90.The second energy storage 9 has the 26S Proteasome Structure and Function effect that the first energy storage 5 is identical, therefore its structure is 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 invention.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 invention, the first energy storage 5 and the second energy storage 9 are separately positioned on the first main branch road 31 of the first hydraulic circuit 3 and the second main branch road 71 of the second hydraulic circuit 7, are more preferably arranged on the middle part of above-mentioned the first main branch road 31 and the second main branch road 71.Like this, can realize evenly buffering, liquid storage 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 conditions 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 3,7 to produce mobile, will certainly cause the fluid of in above-mentioned hydraulic circuit 3,7 to flow in energy storage 5,9, the fluid in another hydraulic circuit flows out from another energy storage.
Below, vehicle suspension system 1 of the present invention is described in detail.
When vehicle is in flat road surface tempo turn 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 roll motion to the right, vehicle body relative ground in left side starts upward movement, and vehicle body relative ground in right side starts to move downward, and now, four wheels in flat road surface are motionless with respect to ground, and vehicle body entirety produces the state being tilted to the right.Now, vehicle suspension system 1 of the present invention starts to play a role.
Particularly, in this case, the left front cylinder barrel 22 of front left side hydraulic actuating cylinder 2 and the left back cylinder barrel 62 of left rear side hydraulic actuating cylinder 6 start upward movement with vehicle body with respect to its piston rod 20,60 separately, the right front cylinder barrel 42 of right front hydraulic actuating cylinder 4 and the right back cylinder barrel 82 of right back hydraulic actuating cylinder 8 start to move downward with respect to its piston rod 40,80 separately with vehicle body simultaneously, i.e. vehicle generation Right deviation.
Now, for the second hydraulic circuit 7, due to right front cylinder barrel 42 and right back cylinder barrel 82 with vehicle body with respect to its piston rod 40 separately, 80 move downward, thereby the volume of the rodless cavity 820 of the rodless cavity 420 of right front hydraulic actuating cylinder 4 and right back hydraulic actuating cylinder 8 all starts to reduce, meanwhile, left front cylinder barrel 22 and left back cylinder barrel 62 with vehicle body with respect to its piston rod 20 separately, 60 upward movements, thereby the volume of the rod chamber 622 of the rod chamber 222 of left front hydraulic actuating cylinder 2 and left back hydraulic actuating cylinder 6 all starts to reduce, due to the incompressibility of liquid, make liquid flow into energy storage 9, thereby the pressure of the second hydraulic circuit 7 increases.Now, for the first hydraulic circuit 3, while starting Right deviation due to vehicle, right front cylinder barrel 42 and right back cylinder barrel 82 with vehicle body with respect to its piston rod 40 separately, 80 move downward, thereby the right hydraulic actuating cylinder 4, 8 rod chamber 422, 822 volume increases, meanwhile, left front cylinder barrel 22 and left back cylinder barrel 62 with vehicle body with respect to its piston rod 20 separately, 60 upward movements, thereby the volume of the rodless cavity 620 of the rodless cavity 220 of left front hydraulic actuating cylinder 2 and left back hydraulic actuating cylinder 6 all starts to increase, due to the not expansivity of liquid, liquid flows out from energy storage 5, thereby the hydraulic pressure of the first hydraulic circuit 3 reduces.Article two, the difference of pressure that loop produces can cause the difference of pressure of rodless cavity and rod chamber in single hydraulic actuating cylinder, by hydraulic actuating cylinder, vehicle body is produced to application force, and four cylinders act on simultaneously, shows as the anti-bank moment that vehicle body is produced, and vehicle body is just returned.
As mentioned above, by the comprehensive interconnected coordinative role of hydraulic suspension system 1 each several part structure of the present invention, produce the roll force that suppresses vehicle body Right deviation, vehicle body is returned to level attitude by the bank moment that this roll force produces, thereby reach the effect of anti-inclination.In the time returning to horizontal motoring condition, the pressure in two hydraulic circuits 3,7 of the present invention 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, left front hydraulic actuating cylinder 2, right front hydraulic actuating cylinder 4, left back hydraulic actuating cylinder 6, the rodless cavity volume of right back hydraulic actuating cylinder 8 all reduces, the volume of rod chamber all increases simultaneously, because each hydraulic actuating cylinder is all connected to each other, so the fluid in the rodless cavity of left front hydraulic actuating cylinder 2 and left back hydraulic actuating cylinder 6 can flow in the corresponding rod chamber of right front hydraulic actuating cylinder 4 and right back hydraulic actuating cylinder 8, and only have the fraction fluid that piston rod occupies to enter into above-mentioned energy storage, can not cause two hydraulic circuits 3, pressure in 7 changes too greatly, thereby, impact on vehicle running smoothness is very little.
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 the rodless cavity 220 of left front hydraulic actuating cylinder 2 just flow in the rod chamber 822 of right back hydraulic actuating cylinder 8, only have the fluid of fraction can enter into energy storage, the impact now Vehicular system pressure being caused is very little, so can not cause occurring difference of pressure in two hydraulic circuits 3,7, therefore the impact of the torsional stiffness on vehicle is minimum.
By adopting automobile suspension system 1 of the present invention, can improve the anti-rollover performance of vehicle, and not affect travelling comfort and other road-holding property of vehicle, thereby realize the coordination control to ride comfort and road-holding property.
It should be noted that, the structure that piston is connected with wheel set although embodiments of the invention illustrate 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 technology of the present invention principle, is to realize multiple modification to above-described embodiment, and these are revised and also should be considered as in scope that the present invention 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 four ports that are connected with the rod chamber of the rod chamber of the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel, described right front cylinder barrel, described right back cylinder barrel respectively;
The second hydraulic circuit, it possesses four ports that are connected with the rodless cavity of the rodless cavity of the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel, 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.
2. vehicle suspension system according to claim 1, it is characterized in that, described the first hydraulic circuit comprises the first main branch road, branches out and the first left front branch road of being communicated with the rodless cavity of described left front cylinder barrel and the rodless cavity of described left back cylinder barrel respectively and the first left back branch road, branch out and the first right front branch road and the first right back branch road that are communicated with the rod chamber of described right front cylinder barrel and the rod chamber of described right back cylinder barrel respectively from described the first main branch road from this first main branch road.
3. vehicle suspension system according to claim 1, it is characterized in that, described the second hydraulic circuit comprises: the second main branch road, branch out and the second left front branch road of being communicated with the rod chamber of described left front cylinder barrel and the rod chamber of described left back cylinder barrel respectively and the second left back branch road, branch out and the second right front branch road and the second right back branch road that are communicated with the rodless cavity of described right front cylinder barrel and the rodless cavity of described right back cylinder barrel respectively from described the second main branch road from this second main branch road.
4. according to the vehicle suspension system described in claim 2 or 3, it is characterized in that, described the first energy storage is arranged on the middle part of described the first main branch road, and described the second energy storage is arranged on the middle part of described the second main branch road.
5. vehicle suspension system according to claim 4, it is characterized in that air chamber that described the first energy storage and the second energy storage possess respectively the liquid chamber that is communicated with described the first hydraulic circuit and described the second hydraulic circuit respectively, be oppositely arranged with this liquid chamber, the flexible partition that described air chamber and described 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.
7. according to the vehicle suspension system described in claim 2 or 3, it is characterized in that, described the first hydraulic circuit is X-shaped shape.
8. according to the vehicle suspension system described in claim 2 or 3, it is characterized in that, described the second hydraulic circuit is X-shaped 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 four ports that are connected with the rodless cavity of the rodless cavity of the rod chamber of the rod chamber of described left front cylinder barrel, described left back cylinder barrel, described right front cylinder barrel, described right back cylinder barrel respectively;
The second hydraulic circuit, it possesses four ports that are connected with the rod chamber of the rod chamber of the rodless cavity of the rodless cavity of described left front cylinder barrel, described left back cylinder barrel, 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.
10. a self-propelled vehicle, is characterized in that having the vehicle suspension system described in the claims 1-9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410127449.4A CN103863049A (en) | 2014-03-31 | 2014-03-31 | Vehicle suspension system and motor vehicle |
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| CN201410127449.4A CN103863049A (en) | 2014-03-31 | 2014-03-31 | Vehicle suspension system and motor vehicle |
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| CN106476561A (en) * | 2015-08-27 | 2017-03-08 | 上海汽车集团股份有限公司 | A kind of automobile anti-side-sway eliminator, suspension system and automobile |
| CN106627318A (en) * | 2017-01-11 | 2017-05-10 | 张文华 | Medical vehicle |
| CN109812539A (en) * | 2017-11-22 | 2019-05-28 | 李宜平 | A kind of damping connection mechanism |
| CN109812540A (en) * | 2017-11-22 | 2019-05-28 | 李宜平 | A kind of damper bindiny mechanism |
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| CN101238003A (en) * | 2005-03-01 | 2008-08-06 | 凯耐提克控股有限公司 | Hydraulic system for a vehicle suspension |
| CN202783347U (en) * | 2012-08-16 | 2013-03-13 | 湖北新楚风汽车股份有限公司 | Rear shaft active steering system of vehicle provided with hydro-pneumatic suspension |
| CN103273820A (en) * | 2013-06-17 | 2013-09-04 | 苏州友邦汽车底盘科技有限公司 | Hydraulic interconnection suspension system and exhausting and sealing method for same |
| CN203449879U (en) * | 2013-08-08 | 2014-02-26 | 常州万安汽车部件科技有限公司 | Anti-pitching and anti-heeling hydraulic interconnection suspension system |
| CN203805667U (en) * | 2014-03-31 | 2014-09-03 | 常州万安汽车部件科技有限公司 | Vehicle suspension system and motor vehicle |
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| CN106476561A (en) * | 2015-08-27 | 2017-03-08 | 上海汽车集团股份有限公司 | A kind of automobile anti-side-sway eliminator, suspension system and automobile |
| CN106627318A (en) * | 2017-01-11 | 2017-05-10 | 张文华 | Medical vehicle |
| CN109812539A (en) * | 2017-11-22 | 2019-05-28 | 李宜平 | A kind of damping connection mechanism |
| CN109812540A (en) * | 2017-11-22 | 2019-05-28 | 李宜平 | A kind of damper bindiny mechanism |
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