CN105443639A - Automobile driving shock absorber based on electro-hydraulic servo - Google Patents
Automobile driving shock absorber based on electro-hydraulic servo Download PDFInfo
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- CN105443639A CN105443639A CN201510740465.5A CN201510740465A CN105443639A CN 105443639 A CN105443639 A CN 105443639A CN 201510740465 A CN201510740465 A CN 201510740465A CN 105443639 A CN105443639 A CN 105443639A
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- shock absorber
- electro
- servovalve
- automobile
- car running
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- 230000035939 shock Effects 0.000 title claims abstract description 62
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 48
- 238000001125 extrusion Methods 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 239000002828 fuel tank Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000013016 damping Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000035800 maturation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The invention provides an automobile driving shock absorber based on electro-hydraulic servo. The left and right sides of the front portion of an automobile are each provided with an ultrasonic detector connected with an electronic control unit. The electronic control unit works out the distance between an automobile body and a front pavement through the ultrasonic detectors, and the extending lengths of piston rods of hydraulic cylinders of a front shock absorber body and a rear shock absorber body are worked out according to the distance to achieve smooth running of the automobile body. A shock absorber piston rod hydraulic control device controls the extending lengths of the piston rods of the hydraulic cylinders of the front shock absorber body and the rear shock absorber body according to the needed extending length, worked out by the electronic control unit, of the piston rods. Stretching of the piston rods of the hydraulic cylinders in the shock absorber is controlled through the electro-hydraulic servo technology, the stretching length of the shock absorber can be controlled in real time according to the shape of the pavement, and the automobile driving shock absorber based on electro-hydraulic servo has the advantages of being mature in technology, low in cost, good in active control performance, wide in application and the like.
Description
Technical field
The present invention relates to automobile technical field, be specially one and initiatively plant the automobile absorber with shock-absorbing function, belong to automobile technical field.
Background technique
In traditional active damping technology major control vibration damper, the damping of damping oil controls the stable of vehicle body, it is generally the damping adopting throttle valve control to enter the fluid in vibration damper, or by magnetic field or the electric field of control vibration damper outside, make the mobility of fluid in vibration damper, namely damping changes, and constantly converts " soft, hard " degree of fluid, thus controls " soft, hard " of vibration damper, make vibration damper be unlikely to excessive compression or elongation, finally keep the relatively steady of vehicle body.This Active Control Method cost is higher, and damping fluid character is special, is difficult to supplement as there is leakage, and can not the stationarity of ACTIVE CONTROL vehicle body, just reduces jiggly possibility, therefore greatly limit its application area and using effect.
Based on above technical problem, the invention provides a kind of automobile active shock based on electro-hydraulic servo, it adopts the flexible of the hydraulic cylinder piston rod in electro-hydraulic servo control technical controlling vibration damper, the collapsing length of vibration damper can be controlled in real time according to the shape on road surface, possess skills maturation, and cost is lower, and ACTIVE CONTROL performance is good, the advantage such as to be widely used, what the present invention is based on electro-hydraulic servo control can make vehicle body held stationary active shock in the process of moving.
Summary of the invention
The object of this invention is to provide a kind of structure and use simply, rationally, cost is low, a kind of automobile active shock based on electro-hydraulic servo of stable performance, technology maturation.
For achieving the above object, the present invention adopts following technological scheme: a kind of automobile active shock based on electro-hydraulic servo, it comprises ultrasonic detector, front shock absorber, rear shock absorber, car running computer, height sensor, acceleration transducer and piston lever of reducer hydraulic control device, it is characterized in that, anterior left and right two sides of automobile are respectively provided with the ultrasonic detector described in, described ultrasonic detector is connected with described car running computer, car running computer adopts ultrasonic detector to calculate the distance of road surface ahead apart from vehicle body, and the described front shock absorber making automotive body smooth-ride is calculated according to this distance, the extrusion of the hydraulic cylinder piston rod of rear shock absorber, needed for the piston rod that described piston lever of reducer hydraulic control device calculates according to car running computer, extrusion is to described front shock absorber, the extrusion of the hydraulic cylinder piston rod of rear shock absorber controls.
Further, as preferably, described piston lever of reducer hydraulic control device comprises motor, oil hydraulic pump, relief valve, one-way valve, servovalve, oil hydraulic cylinder, stop valve, accumulator and fuel tank, wherein, described motor is connected with described oil hydraulic pump, described oil hydraulic pump is connected with described fuel tank, the described relief valve of the working pressure be provided with for adjust system is also connected in parallel between the oil outlet of described oil hydraulic pump and described fuel tank, described oil hydraulic pump is connected with the servovalve of front shock absorber and rear shock absorber by described one-way valve, filler opening and the oil outlet of the oil hydraulic cylinder of described servovalve and described front shock absorber and rear shock absorber are connected, described servovalve is also connected with described fuel tank, oil circuit between the oil outlet of described oil hydraulic cylinder and described servovalve is also provided with described stop valve and accumulator.
Further, as preferably, described ultrasonic detector sends and receives ultrasound, described car running computer is the time difference by calculating between transmitted wave and close echo, calculates the distance of road surface ahead apart from vehicle body; Described car running computer passes through high-velocity scanning, generate a large amount of distance values, form some cloud, by car running computer, point-cloud fitting is become road surface threedimensional model, and the running orbit of the threedimensional model of combining road and vehicle body, obtain the track that will run of automotive wheel and the curve of in the vertical direction, vehicle-mounted computer obtains the extrusion of each damper hydraulic cylinder piston rod making vehicle body smooth-ride by certain algorithm, the controlling curve of m-piston rod extrusion when obtaining.
Further, as preferably, described car running computer according to obtain time m-piston rod extrusion the related data of controlling curve, related data is inputted the servovalve of each vibration damper by described car running computer, servovalve will control the fluid entering shock absorber fluid cylinder pressure, thus control piston bar is flexible, and when body sway degree exceedes certain threshold value, vehicle-mounted computer will readjust controling parameters, and the smoothness of final guarantee vehicle body within the specific limits.
Further, as preferably, on the front-wheel that described height sensor and acceleration transducer are separately positioned on automobile and trailing wheel.
Further, as preferably, the working pressure of servovalve is 3-10MPa, and response frequency is 0-80Hz.
Beneficial effect of the present invention is:
A kind of automobile active shock based on electro-hydraulic servo provided by the invention, it adopts the flexible of the hydraulic cylinder piston rod in electro-hydraulic servo control technical controlling vibration damper, the collapsing length of vibration damper can be controlled in real time according to the shape on road surface, possess skills maturation, and cost is lower, and ACTIVE CONTROL performance is good, the advantage such as to be widely used, automobile absorber of the present invention, it forms based on electro-hydraulic servo control Technology design, can make vehicle body held stationary active shock in the process of moving.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of a kind of automobile active shock based on electro-hydraulic servo of the present invention;
Fig. 2 is that the automobile running installing automobile absorber of the present invention crosses road surface pit structural representation;
Fig. 3 is the structural representation of the piston lever of reducer hydraulic control device of a kind of automobile active shock based on electro-hydraulic servo of the present invention;
Fig. 4 is the control principle schematic diagram of the piston lever of reducer hydraulic control device of a kind of automobile active shock based on electro-hydraulic servo of the present invention;
Wherein, 1, ultrasonic detector, 2, front shock absorber, 3, rear shock absorber, 4, car running computer, 5, height sensor, 6, acceleration transducer, 7, motor, 8, oil hydraulic pump, 9, relief valve, 10, one-way valve, 11, servovalve, 12, oil hydraulic cylinder, 13, stop valve, 14, accumulator, 15, fuel tank, 16, road surface, 17, pit, 18, piston lever of reducer hydraulic control device.
Embodiment
Below in conjunction with accompanying drawing, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
As Figure 1-4, the invention provides a kind of automobile active shock based on electro-hydraulic servo, it comprises ultrasonic detector 1, front shock absorber 2, rear shock absorber 3, car running computer 4, height sensor 5, acceleration transducer 6 and piston lever of reducer hydraulic control device, it is characterized in that, anterior left and right two sides of automobile are respectively provided with the ultrasonic detector 1 described in, described ultrasonic detector 1 is connected with described car running computer 4, car running computer 4 adopts ultrasonic detector 1 to calculate the distance of road surface ahead apart from vehicle body, and the described front shock absorber 2 making automotive body smooth-ride is calculated according to this distance, the extrusion of the hydraulic cylinder piston rod of rear shock absorber 3, needed for the piston rod that described piston lever of reducer hydraulic control device 18 calculates according to car running computer, extrusion is to described front shock absorber, the extrusion of the hydraulic cylinder piston rod of rear shock absorber controls.
In the present embodiment, as shown in Figure 3, described piston lever of reducer hydraulic control device 18 comprises motor 7, oil hydraulic pump 8, relief valve 9, one-way valve 10, servovalve 11, oil hydraulic cylinder 12, stop valve 13, accumulator 14 and fuel tank 15, wherein, described motor 7 is connected with described oil hydraulic pump 8, described oil hydraulic pump 8 is connected with described fuel tank 15, the described relief valve 9 of the working pressure be provided with for adjust system is also connected in parallel between the oil outlet of described oil hydraulic pump 8 and described fuel tank 15, described oil hydraulic pump 8 is connected by the P mouth of the servovalve 11 of described one-way valve 10 and front shock absorber 2 and rear shock absorber 3, the A of described servovalve 11, B mouth is connected with the filler opening of the oil hydraulic cylinder of described front shock absorber 2 and rear shock absorber 3 and oil outlet respectively, the T mouth of described servovalve 11 is also connected with described fuel tank 15, oil circuit between the oil outlet of described oil hydraulic cylinder 12 and described servovalve 11 is also provided with described stop valve 13 and accumulator 14.
The present invention is when damping, and ultrasonic detector sends and receives ultrasound, described car running computer is the time difference by calculating between transmitted wave and close echo, calculates the distance of road surface ahead apart from vehicle body; Described car running computer passes through high-velocity scanning, generate a large amount of distance values, form some cloud, by car running computer, point-cloud fitting is become road surface threedimensional model, and the running orbit of the threedimensional model of combining road and vehicle body, obtain the track that will run of automotive wheel and the curve of in the vertical direction, vehicle-mounted computer obtains the extrusion of each damper hydraulic cylinder piston rod making vehicle body smooth-ride by certain algorithm, the controlling curve of m-piston rod extrusion when obtaining.Described car running computer according to obtain time m-piston rod extrusion the related data of controlling curve, related data is inputted the servovalve of each vibration damper by described car running computer, servovalve will control the fluid entering shock absorber fluid cylinder pressure, thus control piston bar is flexible, and when body sway degree exceedes certain threshold value, vehicle-mounted computer will readjust controling parameters, and the smoothness of final guarantee vehicle body within the specific limits.On the front-wheel that described height sensor and acceleration transducer are separately positioned on automobile and trailing wheel.The working pressure of servovalve is 3-10MPa, and response frequency is 0-80Hz.
Composition graphs 2 and Fig. 4, for car straight-line travelling, ultrasonic detector detects L before car front-wheel
1there is a pit on road surface 16, place, and pit total length is L
2, scanning obtains the data cloud of pit 17, and in data cloud input car running computer, the processed threedimensional model forming road surface, in conjunction with the driving trace of automobile, can obtain the driving trace of each wheel and position curve in vertical direction.Meanwhile, car running computer judges through T
1=L
1after/V (V is average speed), front-wheel will cross this pit.In conjunction with the threedimensional model of pit, car running computer generates T
1the extrusion of piston lever of reducer in rear the near front wheel, and at T
2=L
2in the time of/V, the overhang of piston rod.In like manner, car running computer also can calculate T
3=L
3during/V rear wheel vibration damper piston overhang and at T
2overhang in time, finally inputs in the servovalve on each vibration damper, and servovalve correspondingly control piston bar moves in the other direction relative to pit shape, thus keeps the steady of vehicle body.
The present invention adopts the flexible of the hydraulic cylinder piston rod in electro-hydraulic servo control technical controlling vibration damper, the collapsing length of vibration damper can be controlled in real time according to the shape on road surface, possess skills maturation, cost is lower, ACTIVE CONTROL performance is good, the advantage such as to be widely used, the present invention forms based on electro-hydraulic servo control Technology design, and can solve automobile in actual travel process in the jiggly situation of vehicle body occur brake time easily there is " nodding " phenomenon, when can effectively prevent curved, vehicle body banking, keeps vehicle body basicly stable motionless.
Above mode of execution is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technological schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (6)
1. the automobile active shock based on electro-hydraulic servo, it comprises ultrasonic detector, front shock absorber, rear shock absorber, car running computer, height sensor, acceleration transducer and piston lever of reducer hydraulic control device, it is characterized in that, anterior left and right two sides of automobile are respectively provided with the ultrasonic detector described in, described ultrasonic detector is connected with described car running computer, car running computer adopts ultrasonic detector to calculate the distance of road surface ahead apart from vehicle body, and the described front shock absorber making automotive body smooth-ride is calculated according to this distance, the extrusion of the hydraulic cylinder piston rod of rear shock absorber, needed for the piston rod that described piston lever of reducer hydraulic control device calculates according to car running computer, extrusion is to described front shock absorber, the extrusion of the hydraulic cylinder piston rod of rear shock absorber controls.
2. a kind of automobile active shock based on electro-hydraulic servo according to claim 1, it is characterized in that, described piston lever of reducer hydraulic control device comprises motor, oil hydraulic pump, relief valve, one-way valve, servovalve, oil hydraulic cylinder, stop valve, accumulator and fuel tank, wherein, described motor is connected with described oil hydraulic pump, described oil hydraulic pump is connected with described fuel tank, the described relief valve of the working pressure be provided with for adjust system is also connected in parallel between the oil outlet of described oil hydraulic pump and described fuel tank, described oil hydraulic pump is connected with the servovalve of front shock absorber and rear shock absorber by described one-way valve, filler opening and the oil outlet of the oil hydraulic cylinder of described servovalve and described front shock absorber and rear shock absorber are connected, described servovalve is also connected with described fuel tank, oil circuit between the oil outlet of described oil hydraulic cylinder and described servovalve is also provided with described stop valve and accumulator.
3. a kind of automobile active shock based on electro-hydraulic servo according to claim 1, it is characterized in that, described ultrasonic detector sends and receives ultrasound, described car running computer is the time difference by calculating between transmitted wave and close echo, calculates the distance of road surface ahead apart from vehicle body; Described car running computer passes through high-velocity scanning, generate a large amount of distance values, form some cloud, by car running computer, point-cloud fitting is become road surface threedimensional model, and the running orbit of the threedimensional model of combining road and vehicle body, obtain the track that will run of automotive wheel and the curve of in the vertical direction, vehicle-mounted computer obtains the extrusion of each damper hydraulic cylinder piston rod making vehicle body smooth-ride by certain algorithm, the controlling curve of m-piston rod extrusion when obtaining.
4. a kind of automobile active shock based on electro-hydraulic servo according to claim 3, it is characterized in that, described car running computer according to obtain time m-piston rod extrusion the related data of controlling curve, related data is inputted the servovalve of each vibration damper by described car running computer, servovalve will control the fluid entering shock absorber fluid cylinder pressure, thus control piston bar is flexible, and when body sway degree exceedes certain threshold value, vehicle-mounted computer will readjust controling parameters, and the smoothness of final guarantee vehicle body within the specific limits.
5. a kind of automobile active shock based on electro-hydraulic servo according to claim 1, is characterized in that, on the front-wheel that described height sensor and acceleration transducer are separately positioned on automobile and trailing wheel.
6. a kind of automobile active shock based on electro-hydraulic servo according to claim 2-5 any one, is characterized in that, the working pressure of servovalve is 3-10MPa, and response frequency is 0-80Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740465.5A CN105443639B (en) | 2015-11-04 | 2015-11-04 | A kind of automobile active shock based on electro-hydraulic servo |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740465.5A CN105443639B (en) | 2015-11-04 | 2015-11-04 | A kind of automobile active shock based on electro-hydraulic servo |
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| Publication Number | Publication Date |
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| CN105443639A true CN105443639A (en) | 2016-03-30 |
| CN105443639B CN105443639B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510740465.5A Active CN105443639B (en) | 2015-11-04 | 2015-11-04 | A kind of automobile active shock based on electro-hydraulic servo |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109642A1 (en) * | 2017-12-06 | 2019-06-13 | 广州汽车集团股份有限公司 | Active suspension control device, system, and method |
| CN110626302A (en) * | 2019-09-30 | 2019-12-31 | 南京虞如梦信息技术有限公司 | Safe and reliable's unmanned car based on thing networking |
| CN114793516A (en) * | 2022-04-21 | 2022-07-29 | 潍柴雷沃重工股份有限公司 | Tractor, active damping control method and system for agricultural implement and tractor |
| CN116214339A (en) * | 2023-02-28 | 2023-06-06 | 肇庆高峰机械科技有限公司 | High-precision numerical control verticality grinding machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266749A2 (en) * | 1986-11-07 | 1988-05-11 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Suspension for vehicles, particularly for motor vehicles |
| US5810384A (en) * | 1993-12-21 | 1998-09-22 | Unisia Jecs Corporation | Apparatus and method for controlling damping force characteristic of vehicular shock absorber |
| CN2728815Y (en) * | 2004-09-29 | 2005-09-28 | 吉宝忠 | Electric controlled hydraulic lifter for car suspension frame |
| CN1676356A (en) * | 2005-04-14 | 2005-10-05 | 重庆大学 | Controllable automobile magnetic rhological absorber with height adjusting function |
| CN104149575A (en) * | 2014-09-01 | 2014-11-19 | 杨丰华 | Distortion swing suspension for four-wheeler |
| CN104401198A (en) * | 2014-09-23 | 2015-03-11 | 东北农业大学 | Active suspension system for hydraulic type vehicle |
| CN104709025A (en) * | 2015-03-27 | 2015-06-17 | 厦门理工学院 | Self-road-adaption hydraulic active suspension system |
-
2015
- 2015-11-04 CN CN201510740465.5A patent/CN105443639B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266749A2 (en) * | 1986-11-07 | 1988-05-11 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Suspension for vehicles, particularly for motor vehicles |
| US5810384A (en) * | 1993-12-21 | 1998-09-22 | Unisia Jecs Corporation | Apparatus and method for controlling damping force characteristic of vehicular shock absorber |
| CN2728815Y (en) * | 2004-09-29 | 2005-09-28 | 吉宝忠 | Electric controlled hydraulic lifter for car suspension frame |
| CN1676356A (en) * | 2005-04-14 | 2005-10-05 | 重庆大学 | Controllable automobile magnetic rhological absorber with height adjusting function |
| CN104149575A (en) * | 2014-09-01 | 2014-11-19 | 杨丰华 | Distortion swing suspension for four-wheeler |
| CN104401198A (en) * | 2014-09-23 | 2015-03-11 | 东北农业大学 | Active suspension system for hydraulic type vehicle |
| CN104709025A (en) * | 2015-03-27 | 2015-06-17 | 厦门理工学院 | Self-road-adaption hydraulic active suspension system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109642A1 (en) * | 2017-12-06 | 2019-06-13 | 广州汽车集团股份有限公司 | Active suspension control device, system, and method |
| CN110626302A (en) * | 2019-09-30 | 2019-12-31 | 南京虞如梦信息技术有限公司 | Safe and reliable's unmanned car based on thing networking |
| CN114793516A (en) * | 2022-04-21 | 2022-07-29 | 潍柴雷沃重工股份有限公司 | Tractor, active damping control method and system for agricultural implement and tractor |
| CN116214339A (en) * | 2023-02-28 | 2023-06-06 | 肇庆高峰机械科技有限公司 | High-precision numerical control verticality grinding machine |
| CN116214339B (en) * | 2023-02-28 | 2023-10-20 | 肇庆高峰机械科技有限公司 | High-precision numerical control verticality grinding machine |
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Application publication date: 20160330 Assignee: Wuhan University of science and Technology Business Incubator Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2020420000004 Denomination of invention: An automobile active shock absorber based on electro-hydraulic servo Granted publication date: 20170825 License type: Common License Record date: 20201021 |
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Effective date of registration: 20220707 Address after: 430080 No. 1212, iron and steel building, Wuhan University of science and technology, No. 743, Heping Avenue, Qingshan District, Wuhan City, Hubei Province Patentee after: Wuhan Wuke servo Electromechanical Equipment Co.,Ltd. Address before: 430081 No. 947 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY |
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