CN102922967B - Initiative shock reducing device of automobile - Google Patents
Initiative shock reducing device of automobile Download PDFInfo
- Publication number
- CN102922967B CN102922967B CN201210446202.XA CN201210446202A CN102922967B CN 102922967 B CN102922967 B CN 102922967B CN 201210446202 A CN201210446202 A CN 201210446202A CN 102922967 B CN102922967 B CN 102922967B
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- impact
- shock
- passive
- opened
- shock reducing
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- Fluid-Damping Devices (AREA)
Abstract
The invention provides an initiative shock reducing device of an automobile. The initiative shock reducing device is compatible with a traditional shock reducing system, can eliminate peak impact caused by uneven road surface when the automobile runs and enable the comfort to be greatly improved in driving. In addition, when the initiative shock reducing device breaks down, the automobile can still run normally, but the shock reducing performance is the same as common vehicles. The initiative shock reducing device is mainly characterized in that the shock reducing system adopts two-stage control; the first-stage shock reduction is improved ''passive shock reduction'' mainly for eliminating ''protruding'' impact and meanwhile absorbing surplus impact energy for active shock reduction; the second-stage shock reduction is ''active shock reduction'' mainly for eliminating the impact due to gravity action when vehicle wheels are in a void state after passing heave; and the first-stage shock reduction and the second-stage shock reduction are controlled comprehensively and intelligently. A primary hydraulic cylinder driving shock reducer can be added based on the improved existing shock reducing system, and a buffer testing device is further arranged on an existing damping shock reducing system, so that a ''passive shock reduction'' function is achieved, the ''protruding'' impact is eliminated, simultaneously information is acquired and fed back to a control system, and the driving shock reducer is started and the impact due to the gravity action is eliminated if the vehicle wheels are in the coil state after passing the heave. After the initiative shock reducing device is used, most of peak impact can be eliminated, and the impact is controlled within a comfort range which can be borne by passengers.
Description
Technical field
The present invention relates to automobile shock technical field, is exactly a kind of automobile active damper be applied in vehicle vibration reduction system.
Background technology
The form of automobile shock has multiple, but vehicle vibration damping system is passive damping vibration damping method at present, and road surface seismaesthesia of jolting is strong, ride comfort is poor, current technical study does not produce technical application again, therefore, carries out test update wide market to current shock attenuation unit.
Summary of the invention
In order to cut down vibration as much as possible, improving ride comfort, studying, to improve current vehicle vibration damping method significant.The compatible traditional vibration insulating system of apparatus of the present invention, can eliminate the spike produced because of Uneven road in running car and impact, ride comfort is improved greatly.Meanwhile, if this covering device breaks down, vehicle still can normally run, and just cushioning performance is identical with common vehicle.Main contents of the present invention have: one, vibration insulating system divides two-step evolution; Two, first order vibration damping is " passive vibration damping ", and main elimination " convex " is impacted, and utilizes the passive damping vibration damping after improving to send out vibration damping, can dodge protruding obstacle in a big way after guarantee wheel is to the bearing force of vehicle frame; Second stage vibration damping is " active damping ", the impact produced by Action of Gravity Field after main elimination wheel hanging; Three, first and second grade of comprehensive intelligent controls.Its principle of work is: when automobile normally runs, and vehicle body is on passive damper spring 4, if wheel is subject to less reality when impacting, impulsive force is sponged by passive damper spring 4 and damping hole 5; If wheel is subject to larger reality when impacting, damping hole 5 is difficult to absorb instantaneous larger impact fast, for eliminating the strong seismaesthesia of occupant, the check valve 12 of this device is opened, by pass valve 11 is opened, make oil liquid pressure in passive damper constant, seamlessly transit impact with the spring force of passive damper spring 4, and the energy that impact is produced is stored by energy storage 10; Continue to increase if impacted, then start the passive vibration damping of secondary, check valve 17 is opened, and by pass valve 18 is opened, and absorbs large impact energy, and is stored by energy storage 10.If during hollow after projection of wheel, active damper 2 pressure reduces rapidly, and after being less than reducing valve 16 settling pressure, reducing valve 16 is opened, by energy storage 10 to active damper 2 makeup energy, alleviate wheel hollow after, the shock effect of Action of Gravity Field.By position sensor 13 induction piston position, make the oil of active damper 2 also keep the capacity of needs, if too much, and pressure is greater than supply pressure, then duty valve 15 is opened, and unnecessary fluid is discharged.After using this device, the up-and-down movement speed of vehicle body and stroke can be made to ignore, the comfort that personnel take can be very good.
Accompanying drawing explanation
Fig. 1 is automobile active damper schematic diagram.
1. active damping springs in figure; 2. active damper; 3. protective cover; 4. passive damper spring; 5. damping hole; 6. passive damper; 7. liquid level meter; 8. wire; 9. 2/2-way electromagnetic valve; 10. energy storage; 11 by pass valves; 12. check valves; 13. position sensors; 14. 2/2-way electromagnetic valves; 15. duty valves; 16. reducing valves; 17. check valves; 18. by pass valves.
Detailed description of the invention
The basis of improving original vibration insulating system installs one-stage hydraulic cylinder active damper additional, buffering test device is offered again on original damping system, realize " passive vibration damping " function, eliminate " convex " to impact, Information Monitoring simultaneously feeds back to control system, if wheel is in hollow state, then start active damper, eliminate gravitational thrusts.After using this device, the spike that can control to reduce the overwhelming majority impacts, and makes it within human comfort tolerance range.One, vibration insulating system divides two-step evolution; Two, first order vibration damping is " passive vibration damping ", and main elimination " convex " is impacted, and second stage vibration damping is " active damping ", after main elimination wheel is hollow, and the impact produced by gravity; Three, first and second grade of comprehensive intelligent controls.Its principle of work is: when automobile normally runs, and vehicle body is on passive damper spring 4, if wheel is subject to less reality when impacting, impulsive force is sponged by passive damper spring 4 and damping hole 5; If wheel is subject to larger reality when impacting, the check valve 12 of this device is opened, and by pass valve 11 is opened, and makes oil liquid pressure in passive damper constant, seamlessly transit impact, and the energy that impact is produced is stored with the spring force of passive damper spring 4 by energy storage 10; Continue to increase if impacted, then start the passive vibration damping of secondary, check valve 17 is opened, and by pass valve 18 is opened, and absorbs large impact energy, and is stored by energy storage 10.If when wheel is subject to empty impacting (wheel cross after projection hollow), active damper 2 pressure reduces rapidly, and after being less than reducing valve 16 settling pressure, reducing valve 16 is opened, and by energy storage 10 to active damper 2 makeup energy, alleviates empty shock effect.By position sensor 13 induction piston position, make the oil of active damper 2 also keep the capacity of needs, if too much, and pressure is greater than supply pressure, then duty valve 15 is opened, and unnecessary fluid is discharged.
Claims (1)
1. automobile active damper, is characterized in that: vibration insulating system divides two-step evolution; Two, first order vibration damping is " the passive vibration damping " after improving, and main elimination " convex " is impacted, and the unnecessary impact energy of simultaneously stability is used for active damping; Second stage vibration damping is " active damping ", main when eliminating hollow after projection of wheel, by the impact of Action of Gravity Field; Three, first and second grade of comprehensive intelligent controls, when automobile normally runs, vehicle body is on passive damper spring (4), if when wheel is subject to less " convex " impact, impulsive force is sponged by passive damper spring (4) and damping hole (5); If when wheel is subject to comparatively large " convex " impact, the check valve (12) of this device is opened, by pass valve (11) is opened, make oil liquid pressure in passive damper constant, seamlessly transit impact with the spring force of passive damper spring (4), and the energy that impact is produced is stored by energy storage (10); Continue to increase if impacted, then start the passive vibration damping of secondary, check valve (17) is opened, and by pass valve (18) is opened, and absorbs large impact energy, and is stored by energy storage (10); If during hollow after projection of wheel, produce the impact of Action of Gravity Field, active damper (2) pressure reduces rapidly, after being less than reducing valve (16) settling pressure, reducing valve (16) is opened, by energy storage (10) to active damper (2) makeup energy, alleviate the impact of gravitational thrusts
;by position sensor (13) induction piston position, make the oil of active damper (2) also keep the capacity of needs, if too much, and pressure is greater than supply pressure, then duty valve (15) is opened, and unnecessary fluid is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446202.XA CN102922967B (en) | 2012-11-09 | 2012-11-09 | Initiative shock reducing device of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446202.XA CN102922967B (en) | 2012-11-09 | 2012-11-09 | Initiative shock reducing device of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102922967A CN102922967A (en) | 2013-02-13 |
| CN102922967B true CN102922967B (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210446202.XA Expired - Fee Related CN102922967B (en) | 2012-11-09 | 2012-11-09 | Initiative shock reducing device of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102922967B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226876A (en) * | 2013-06-11 | 2014-12-24 | 镇江市申茂机械有限公司 | Hydraulic damping device |
| CN111236160A (en) * | 2020-03-30 | 2020-06-05 | 河海大学常州校区 | Wharf protection device |
| CN112549892B (en) * | 2020-12-04 | 2022-02-15 | 江苏大学 | Secondary vibration reduction electrohydraulic active suspension with adjustable additional rigidity and damping and working method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08183319A (en) * | 1994-12-28 | 1996-07-16 | Isuzu Motors Ltd | Kneeling control device of air spring suspension vehicle |
| CN2664936Y (en) * | 2003-12-22 | 2004-12-22 | 安徽飞彩车辆股份有限公司 | Motor vehicle front wheel shock damper |
| CN101412355A (en) * | 2008-11-27 | 2009-04-22 | 北京理工大学 | External electromagnetic valve type three-stage damping adjustable hydro-pneumatic suspension for electric control |
| CN102032306A (en) * | 2009-09-30 | 2011-04-27 | 萱场工业株式会社 | Hydraulic circuit for semi-active damper |
| CN102320228A (en) * | 2011-08-23 | 2012-01-18 | 中国北方车辆研究所 | Method for adjusting vehicle position by adopting descending process |
| CN102390231A (en) * | 2011-08-23 | 2012-03-28 | 中国北方车辆研究所 | Vehicle-posture adjusting system tire load control method |
-
2012
- 2012-11-09 CN CN201210446202.XA patent/CN102922967B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08183319A (en) * | 1994-12-28 | 1996-07-16 | Isuzu Motors Ltd | Kneeling control device of air spring suspension vehicle |
| CN2664936Y (en) * | 2003-12-22 | 2004-12-22 | 安徽飞彩车辆股份有限公司 | Motor vehicle front wheel shock damper |
| CN101412355A (en) * | 2008-11-27 | 2009-04-22 | 北京理工大学 | External electromagnetic valve type three-stage damping adjustable hydro-pneumatic suspension for electric control |
| CN102032306A (en) * | 2009-09-30 | 2011-04-27 | 萱场工业株式会社 | Hydraulic circuit for semi-active damper |
| CN102320228A (en) * | 2011-08-23 | 2012-01-18 | 中国北方车辆研究所 | Method for adjusting vehicle position by adopting descending process |
| CN102390231A (en) * | 2011-08-23 | 2012-03-28 | 中国北方车辆研究所 | Vehicle-posture adjusting system tire load control method |
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| CN102922967A (en) | 2013-02-13 |
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Granted publication date: 20150311 Termination date: 20191109 |