CN104999884B - A kind of hydraulic pressure suspension compound suspension - Google Patents

A kind of hydraulic pressure suspension compound suspension Download PDF

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Publication number
CN104999884B
CN104999884B CN201510438416.6A CN201510438416A CN104999884B CN 104999884 B CN104999884 B CN 104999884B CN 201510438416 A CN201510438416 A CN 201510438416A CN 104999884 B CN104999884 B CN 104999884B
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China
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suspension
hydraulic pressure
hydraulic
cylinder
accumulator
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CN104999884A (en
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董明明
李宗华
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Abstract

The present invention relates to automotive engineering technology fields, a kind of hydraulic pressure suspension compound suspension is provided, including conventional suspension, hydraulic pressure suspension cylinder, accumulator, interconnecting pipes, electro hydraulic valve, hydraulic pressure suspension cylinder quantity is identical as wheel count, and hydraulic pressure suspension cylinder upper end is fixedly connected with the vehicle body, lower end is connect with conventional suspension upper end, conventional suspension lower end is connect with wheel, and accumulator is connect with interconnecting pipes, there is floating piston inside accumulator, floating piston side is hydraulic oil, and the other side is high pressure gas;Bi-bit bi-pass electro hydraulic valve is equipped with by interconnecting pipes connection, interconnecting pipes and hydraulic pressure suspension cylinder junction between accumulator and each suspension hydraulic cylinder;Beneficial effects of the present invention are:It solves the problems, such as that traditional suspension cannot be taken into account strong cross-country power and to run at high speed, has not only maintained and run at high speed ability in paved road, but also automobile can be improved in the handling capacity of extreme uneven road surface, enhanced the adaptability of automobile suspension system.

Description

A kind of hydraulic pressure suspension compound suspension
Technical field
The present invention relates to automotive engineering technology field, in particular to a kind of hydraulic pressure suspension compound suspension.
Background technique
Suspension is the general name of force transmission connections between vehicle body and wheel, its effect is that road surface is acted on wheel Vertical reaction, longitudinal counter-force and lateral reaction and these counter-forces are formed by torque and are transmitted on vehicle body, to guarantee automobile Normally travel.
Traditional wheeled or cross-country vehicle for the limit cross-country road, such as the stone riprap road of big rise and fall, narrow mountain Road lacks good passability, and use simulation animal " leg " although the mechanism of walking have in terms of limit cross-country power it is biggish It improves, but loses the ability of running at high speed in pavement of road, and structure is complicated, low efficiency.Using wheel, leg combined row Walking system, although above-mentioned advantage can be taken into account, two sets of running gears can be such that the weight of system greatly increases.In order to realize vehicle Full region passability, while again keep conventional truck paved road high speed, there is an urgent need to development of new suspension knots Structure.
Summary of the invention
It is an object of the invention to:Suspension system characteristic is wanted in order to solve the high cross-country passability of vehicle and paved road The contradiction asked provides a kind of hydraulic pressure suspension compound suspension.
A kind of hydraulic pressure suspension compound suspension of the present invention, including conventional suspension, hydraulic pressure suspension cylinder, accumulator, interconnecting pipes, Electro hydraulic valve, the hydraulic pressure suspension cylinder quantity is identical as wheel count, and hydraulic pressure suspension cylinder upper end is fixedly connected with the vehicle body, Lower end is connect with the conventional suspension upper end, and conventional suspension lower end is connect with wheel, and the accumulator and the interconnecting pipes connect It connects, there is floating piston inside the accumulator, the floating piston side is hydraulic oil, and the other side is high pressure gas;The storage The interconnecting pipes connection, the interconnecting pipes and the hydraulic pressure suspension can be passed through between device and each suspension hydraulic cylinder Cylinder junction is equipped with the electro hydraulic valve.
Further, the electro hydraulic valve is bi-bit bi-pass.
Beneficial effects of the present invention are:It solves the high cross-country passability of vehicle and paved road wants suspension system characteristic The contradiction asked not only had maintained the ability of running at high speed on ordinary road road surface, but also can greatly improve automobile and pass through various hollow roads With the ability in no road area and various obstacles, enhance the full region covering power of automobile and mobility.
Detailed description of the invention
Fig. 1 show structural schematic diagram of the embodiment of the present invention.
In figure:1- car body, 2- hydraulic pressure suspension cylinder, 3- interconnecting pipes, 4- accumulator, 5- conventional suspension, 6- wheel, 7- are automatically controlled Hydraulic valve.
Specific embodiment
Below in conjunction with specific attached drawing the present invention is described in detail specific embodiment.It should be noted that in following embodiments The combination of the technical characteristic or technical characteristic of description is not construed as isolated, they can be combined with each other to reaching To superior technique effect.In the drawings of the following embodiments, the identical label that each attached drawing occurs represent identical feature or Person's component, can be apply to different embodiments.
As shown in Figure 1, a kind of hydraulic pressure suspension compound suspension of the embodiment of the present invention, including conventional suspension 5, hydraulic pressure suspension cylinder 2, accumulator 4, interconnecting pipes 3, electro hydraulic valve 7,2 quantity of hydraulic pressure suspension cylinder is identical as 6 quantity of wheel, the hydraulic suspension Floating 2 upper end of cylinder is fixedly connected with car body 1, and lower end is connect with 5 upper end of conventional suspension, and 5 lower end of conventional suspension and wheel 6 connect It connects, 4 top of accumulator is connect with the interconnecting pipes 3, there is floating piston, the floating piston inside the accumulator 4 Side is hydraulic oil, and the other side is high pressure gas;By described between the accumulator 4 and each suspension hydraulic cylinder 2 3 connection of interconnecting pipes, the interconnecting pipes 3 are equipped with the electro hydraulic valve 7 with 2 junction of hydraulic pressure suspension cylinder.
The electro hydraulic valve 7 is bi-bit bi-pass.
In use, when automobile some wheel encounters pit, common vehicle suspension is easy since wheel elongation is small Existing wheel lift, influences the ride comfort and mobility of automobile.And use the vehicle of hydraulic suspension of embodiment of the present invention floating compound suspension frame , under the action of hydraulic system fluid pressure, causes pit wheel piston rod to extend, wheel is made to touch pit bottom, from And guarantee that wheel has driving force at this, improve the passability of vehicle.
When common vehicle is travelled when rolling slope surface, since conventional suspension two sides decrement is different, lead to two sides wheel load Lotus is different, rolls so as to cause vehicle body along slope surface, is easy to appear and topples.Compound suspension frame is made due to the presence of hydraulic pressure suspension system The wheel load gap for obtaining two sides wheel is little, vehicle body basic horizontal, improves resistance to capsizing.It is hydraulic when vehicle climbing and descending Suspension system is equally able to maintain vehicle body level of approximation, and axle load transfer is small, especially can be improved climbing for non-all-wheel drive vehicles Slope performance.
In rough road traveling, compound suspension frame can make automobile under the effect of the fluid pressure of hydraulic system The piston rod of corresponding wheel extends or shortens, and guarantees that each wheel lands, so that it is guaranteed that the passability of vehicle.
When automobile is run at high speed on highway, the hydraulic pressure suspension can be locked by closing the electro hydraulic valve 7 Cylinder 2 guarantees the control stability of vehicle run at high speed to become the wheeled vehicle of a traditional suspension.
It is outstanding to solve tradition by concatenated topological structure and the lockable property of hydraulic pressure suspension structure for the embodiment of the present invention The contradiction of frame passability and high speed;Hydraulic pressure suspension mechanism and common vehicle suspension are installed in series, when the two cooperates, Suspension can provide big suspension travel, and each wheel is made to have approximate adhesive force, help to improve limit uneven road surface Passability.After the electro hydraulic valve 7 is closed, hydraulic pressure suspension mechanism does not work, and only conventional suspension works, then can protect Demonstrate,prove the operational stability of high vehicle speeds.
Beneficial effects of the present invention are:It solves the high cross-country passability of vehicle and paved road wants suspension system characteristic The contradiction asked not only had maintained the ability of running at high speed on ordinary road road surface, but also can greatly improve automobile and pass through various hollow roads With the ability in no road area and various obstacles, enhance the full region covering power of automobile and mobility.
Although having been presented for one embodiment of the present of invention herein, it will be appreciated by those of skill in the art that Without departing from the spirit of the invention, the embodiments herein can be changed.Above-described embodiment is only exemplary, no It should be using the embodiments herein as the restriction of interest field of the present invention.

Claims (2)

1. a kind of hydraulic pressure suspension compound suspension, which is characterized in that including conventional suspension, hydraulic pressure suspension cylinder, accumulator, mutual union Road, electro hydraulic valve, the hydraulic pressure suspension cylinder quantity is identical as wheel count, hydraulic pressure suspension cylinder upper end and the fixed company of car body It connects, lower end is connect with the conventional suspension upper end, and conventional suspension lower end is connect with wheel, the accumulator and the interconnecting pipes It connects, there is floating piston inside the accumulator, the floating piston side is hydraulic oil, and the other side is high pressure gas;It is described Pass through the interconnecting pipes connection, the interconnecting pipes and the hydraulic suspension between accumulator and each hydraulic pressure suspension cylinder Floating cylinder junction is equipped with the electro hydraulic valve;
Traveling is installed in series and cooperates between the hydraulic pressure suspension cylinder and conventional suspension when on rough road surface, So that the piston rod of corresponding wheel is elongated or shortened by the fluid pressure effect in hydraulic pressure suspension cylinder, to make the vehicle body Keep horizontal;
Traveling when on highway, close, so that the hydraulic pressure suspension cylinder does not work by the electro hydraulic valve.
2. a kind of hydraulic pressure suspension compound suspension as described in claim 1, which is characterized in that the electro hydraulic valve is two Two-port valve.
CN201510438416.6A 2015-07-23 2015-07-23 A kind of hydraulic pressure suspension compound suspension Active CN104999884B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510438416.6A CN104999884B (en) 2015-07-23 2015-07-23 A kind of hydraulic pressure suspension compound suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510438416.6A CN104999884B (en) 2015-07-23 2015-07-23 A kind of hydraulic pressure suspension compound suspension

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CN104999884A CN104999884A (en) 2015-10-28
CN104999884B true CN104999884B (en) 2018-11-30

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086556A (en) * 1963-12-23 1967-10-11 Maschf Augsburg Nuernberg Ag A pressure distributing system for the wheel suspension of vehicles
EP0398804A1 (en) * 1989-05-18 1990-11-22 Automobiles Peugeot Semi-active suspension device and motor vehicle equipped with this device
CN101238003A (en) * 2005-03-01 2008-08-06 凯耐提克控股有限公司 Hydraulic system for a vehicle suspension
CN201456978U (en) * 2009-06-19 2010-05-12 胡华泉 Automotive chassis-lifting mechanism
CN201922884U (en) * 2011-02-28 2011-08-10 陕西重型汽车有限公司 Helical spring balancing suspension for multi-axle off-road vehicle
CN102673340A (en) * 2012-06-07 2012-09-19 中国北方车辆研究所 Car posture adjusting system of oil-gas suspension

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0538913A (en) * 1991-03-04 1993-02-19 Mazda Motor Corp Suspension device for vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086556A (en) * 1963-12-23 1967-10-11 Maschf Augsburg Nuernberg Ag A pressure distributing system for the wheel suspension of vehicles
EP0398804A1 (en) * 1989-05-18 1990-11-22 Automobiles Peugeot Semi-active suspension device and motor vehicle equipped with this device
CN101238003A (en) * 2005-03-01 2008-08-06 凯耐提克控股有限公司 Hydraulic system for a vehicle suspension
CN201456978U (en) * 2009-06-19 2010-05-12 胡华泉 Automotive chassis-lifting mechanism
CN201922884U (en) * 2011-02-28 2011-08-10 陕西重型汽车有限公司 Helical spring balancing suspension for multi-axle off-road vehicle
CN102673340A (en) * 2012-06-07 2012-09-19 中国北方车辆研究所 Car posture adjusting system of oil-gas suspension

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