CN101628533A - Damper for air suspension and self-adaptive damping adjustment method thereof - Google Patents
Damper for air suspension and self-adaptive damping adjustment method thereof Download PDFInfo
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- CN101628533A CN101628533A CN200810031797A CN200810031797A CN101628533A CN 101628533 A CN101628533 A CN 101628533A CN 200810031797 A CN200810031797 A CN 200810031797A CN 200810031797 A CN200810031797 A CN 200810031797A CN 101628533 A CN101628533 A CN 101628533A
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- 238000013016 damping Methods 0.000 title claims abstract description 60
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 56
- 238000007906 compression Methods 0.000 claims abstract description 56
- 239000006096 absorbing agent Substances 0.000 claims abstract description 34
- 230000035939 shock Effects 0.000 claims description 28
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 230000010349 pulsation Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 241000283986 Lepus Species 0.000 claims description 3
- 241000269799 Perca fluviatilis Species 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention provides a novel vibration absorber for an air suspension and a self-adaptive damping adjustment method thereof, and is developed against the problems that the prior adjustable damping vibration absorber with damping which is automatically adjusted by pressure of a main air chamber cannot adjust the compression damping, cannot regulate the driving state, and cannot play the performance of the air suspension and the adjustable damping vibration absorber or high manufacturing precision, and the like. The method establishes a control mode of directly linking and controlling a rebound valve and a compression valve by the pressure of the main chamber based on the control mode, ensures that a control signal is directly inputted along with a load signal, and has reliable and simple action. The adjustable damping vibration absorber has a simple structure and low cost which is lower than that of the prior pressure automatic adjustment damping vibration damper. Due to the dynamic damping adjusting mechanism controlled by pressure difference of an upper cavity and a lower cavity of a piston, the compression damping characteristic of the vibration absorber is greatly improved. The vibration absorber and the method greatly exceed the prior pressure automatic adjusting damping technology either on the structure or the performance.
Description
One, technical field:
The present invention relates to a kind of vehicle air suspension adaptive damping bumper and damping adaptive continuous adjustment system and method.The bumper that this self-adaptive damping is regulated continuously especially is adapted to adopt the car of air suspension, the carrying big bus, and the city bus big bus also is adapted to shipping truck and rail traffic vehicles and other vehicle and mechanical equipment.
Two, the state of the art:
In order to improve ride of vehicle, improve the traveling comfort of taking, alleviate the damage of vehicle to road and goods, developed country is at its commercial vehicle, the carrying big bus, the city bus big bus, shipping truck and rail traffic vehicles and other vehicle have adopted airsuspension system widely.China is also wideling popularize and mandatory employing air suspension in recent years in order to catch up with and surpass this developing direction.In the air suspension technology of constantly development, to the adaptive damping bumper of one of its core technology, people have carried out deep exploration.Aspect the adaptive damping bumper of gasbag pressure automatic control, at present leading and proven technique is a Dutch koni company, cylinder is regulated in the damping that it directly links piston lever of reducer top with the air pressure in the air-spring bellows, regulate the holddown spring of the rebound valve that is positioned at the shock absorber piston bottom by moving up and down of the piston rod of this cylinder, realize changing the extension damping of bumper.The main deficiency of this mode is that it can not regulate the compression damping of bumper, can not self adaptation regulation and control garage state, be unfavorable for giving full play to the advantage of adaptive damping bumper and air suspension.In addition, install damping on piston lever of reducer top additional and regulate cylinder, its elongate plunger rod wants whole process to pass piston lever of reducer, guarantee its sealing life, and accuracy requirement is higher.
Three, goal of the invention and solution:
Purpose of the present invention will be developed a kind of simpler series connection sliding valve structure exactly, more cheaply, can be automatically according to the load of vehicle with travel and the situation self adaptation of road is regulated the adaptive damping bumper of the gasbag pressure automatic control of damping, and a kind of damping adaptive continuous adjustment system of simple and reliable, responding fast.
Solution of the present invention is: the pressure signal in the air-spring bellows of the prior art is directly acted on the end that the valve core of the spool valve of damping is upheld in a control, and its other end is by the spring force effect.And the other end of this spring is supported by the compression valve spool; The other end of compression valve spool is supported by spring equally.When vehicle is unloaded, the air-spring bellows inner air pressure multiply by the thrust that sectional area produced and the spring force balance of valve core of the spool valve, the restriction of rebound valve is in maximum open, and the restriction of compression valve then is in the maximum open under low frequency and the static state, and the damping of adaptive damping bumper is minimum; Load increase when vehicle, the air bag inner air pressure rises, acting on the thrust that is produced on the end face of valve core of the spool valve increases, promotion rebound valve spool overcomes spring force and moves down, reach new balance, the rebound valve spool moves down and has turned down its restriction on shock absorber piston upper and lower cavity interface channel, and the extension damping of bumper is increased; When the rebound valve spool moves down, promote the compression valve spool and overcome spring force and move down, improved the compression damping of bumper, adapt to corresponding load.When vehicle operating, the damping of bumper is then regulated continuously with the pressure reduction self adaptation of pressure in the air-spring bellows and shock absorber piston upper and lower cavity; When vehicle turns round, because action of inertia, rise by the air bag inner air pressure of the air bellow in the bend outside, turned down the restriction of compression valve of the bumper in the bend outside equally, the compression damping of bumper is increased, thereby stoped the further inclination of vehicle body; When vehicle jack rabbit start or hard brake stop, same because action of inertia when vehicle body produces layback or leans forward, improves the function of the compression damping power of back, front shock absorber, suppress the aggravation of this phenomenon effectively.
Projection on the road is to the impact of vehicle body in the process of moving in order to weaken vehicle, and the upper and lower cavity of compression valve spool of the present invention communicates with the upper and lower cavity of shock absorber piston respectively, and controlled by the upper and lower cavity pressure differential of piston.When wheel is run into projection, the pressure of shock absorber piston cavity of resorption increases rapidly, the pressure of this growth has caused the pressure reduction of shock absorber piston upper and lower cavity to increase rapidly, this differential pressure action in the thrust that sectional area produced of spool much larger than spring force, this spool is promoted rapidly to move, strengthened the choke area of compression valve, promptly reduced the compression damping of bumper, alleviated the impact of the projection on the road vehicle body.And crossed projection when wheel, and this pressure pulsation disappears, and the pressure reduction of the upper and lower cavity of shock absorber piston descends, and the compression valve spool is promoted to restore by spring force, and the damping of bumper is also restored thereupon.
Control signal of the present invention is directly taken from the pressure of air bellow main gas tank and the pressure reduction of shock absorber piston upper and lower cavity, and act directly on the end face of control slide spool, effect rapidly, reliably, the extension of bumper and compression damping are regulated with the pressure variation of main gas tank and the pressure reduction of shock absorber piston upper and lower cavity, regulate smooth and easy continuous.And have regulation and control garage's state and alleviated the function of the projection on the road to the impact of vehicle body, brought into play the advantage of adaptive damping bumper and air suspension more fully; Because the present invention is integrated control signal and regulating command, and directly effect, need not to have again actuating unit, simplify the structure, reduced cost.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: rebound valve spool 3, spring 5, compression valve spool 6, spring 7, spring perch 9 is installed on the inside of piston rod 1 according to the order of sequence from top to bottom, rebound valve spool 3 and compression valve spool 6 respectively with piston rod 1 barrel on radially throttling pore joint formed rebound valve and compression valve; The top of air bellow main gas tank and piston rod 1 is by plumbing connection, when stationary vehicle, zero load, air bellow main gas tank inner air pressure multiply by the thrust that sectional area produced of rebound valve spool 3 and the spring force balance of spring 5, the spring force of spring 5 is via the spring force balance of compression valve spool 6 with spring 7, the restriction of rebound valve is in maximum open, the restriction of compression valve then is in the maximum open under low frequency and the static state, and the damping of adaptive damping bumper is minimum; Load increase when vehicle, main gas tank's inner air pressure rises, acting on the thrust that is produced on the end face of rebound valve spool 3 increases, the spring force that the spool 3 of promotion rebound valve overcomes spring 5 moves down, reach new balance, moving down of rebound valve spool 3 turned down the restriction on the rebound valve connection shock absorber piston upper and lower cavity passage, and the extension damping of bumper is increased; The spring force that promotion compression valve spool 6 overcame spring 7 when rebound valve spool 3 moved down moves down, and has turned down the restriction on the compression valve connection shock absorber piston upper and lower cavity passage, and the compression damping of bumper is increased, and adapts to corresponding load.When vehicle turns round, because action of inertia, rise by the air pressure in the main gas tank of the air bellow in the bend outside, turned down the restriction of compression valve simultaneously, the compression damping of bumper is increased, keep the steady of vehicle body.When the vehicle hard brake stop, same because action of inertia can make the air pressure rising in the main gas tank of the air bellow in the forward mounting, has turned down the restriction of compression valve of the bumper of body forward structure simultaneously, the compression damping of front shock absorber is increased, stoped leaning forward of vehicle body; Otherwise, when the vehicle jack rabbit start,
The present invention has the function of the compression damping that improves rear shock absorber equally, has suppressed the aggravation of layback phenomenon effectively.
When wheel is run into projection, cavity of resorption with shock absorber piston in main gas tank has produced a pressure pulsation, this pressure pulsation is when turning down rebound valve spool 3, the pressure reduction of shock absorber piston upper and lower cavity increases rapidly, and promote simultaneously to move on the compression valve spool 6, strengthened the choke area on the passage between compression valve connection shock absorber piston upper and lower cavity, promptly reduced the compression damping of bumper, alleviated the impact of the projection on the road vehicle body.And crossed projection when wheel, and promptly pressure pulsation disappears, and the pressure reduction of shock absorber piston upper and lower cavity descends rapidly, and compression valve spool 6 rapid returns, the compression damping of bumper also restore thereupon.
Claims (5)
1. damper for air suspension and self-adaptive damping adjustment method thereof, shock absorber is by cylinder barrel 2, piston rod 1, rebound valve spool 3, spring 5,7, compression valve spool 6, spring perch 9, check valve steel ball 4, piston 8, throttle compensating valve 11, pay compression valve 12, Deng constituting, it is characterized in that: rebound valve spool 3, spring 5, compression valve spool 6, spring 7, spring perch 9 are installed on the inside of piston rod 1 according to the order of sequence from top to bottom, rebound valve spool 3 and compression valve spool 6 respectively with piston rod 1 barrel on radially throttling pore joint formed rebound valve and compression valve; Air bellow main gas tank is communicated with by pipeline with the top of piston rod 1, when stationary vehicle, zero load, air bellow main gas tank inner air pressure multiply by the thrust that sectional area produced of rebound valve spool 3 and the spring force balance of spring 5, the spring force of spring 5 is via the spring force balance of compression valve spool 6 with spring 7, the restriction of rebound valve is in maximum open, the restriction of compression valve then is in the maximum open under low frequency and the static state, and the damping of adaptive damping bumper is minimum; Load increase when vehicle, main gas tank's inner air pressure rises, acting on the thrust that is produced on the end face of rebound valve spool 3 increases, the spring force that promotion rebound valve spool 3 overcomes spring 5 moves down, reach new balance, moving down of rebound valve spool 3 turned down the restriction on the rebound valve connection shock absorber piston upper and lower cavity passage, and the extension damping of bumper is increased; The spring force that promotion compression valve spool 6 overcame spring 7 when rebound valve spool 3 moved down moves down, and has turned down the restriction on the compression valve connection shock absorber piston upper and lower cavity passage, and the compression damping of bumper is increased, and adapts to corresponding load; When vehicle turns round, because action of inertia, rise by the air pressure in the main gas tank of the air bellow in the bend outside, turned down the restriction of compression valve of the bumper in the bend outside simultaneously, the compression damping of bumper is increased, keep the steady of vehicle body; When the vehicle hard brake stop, same because action of inertia, can make in the forward mounting the main gas tank of air bellow in the air pressure rising, turned down the restriction of the compression valve of front shock absorber simultaneously, the compression damping of front shock absorber is increased, stoped leaning forward of vehicle body; Otherwise when the vehicle jack rabbit start, the present invention has the function of the compression damping that improves rear shock absorber equally, has suppressed the aggravation of layback phenomenon effectively; When wheel is run into projection, cavity of resorption with shock absorber piston in main gas tank has produced a pressure pulsation, this pressure pulsation is when turning down rebound valve spool 3, the pressure reduction of shock absorber piston upper and lower cavity increases rapidly, promote to move on the compression valve spool 6, strengthened the choke area on the passage between compression valve connection shock absorber piston upper and lower cavity, promptly reduced the compression damping of bumper, alleviated the impact of the projection on the road vehicle body.And crossed projection when wheel, and promptly pressure pulsation disappears, and the pressure reduction of shock absorber piston upper and lower cavity descends rapidly, and compression valve spool 6 rapid returns, the compression damping of bumper also restore thereupon.
2. a kind of damper for air suspension according to claim 1 and self-adaptive damping adjustment method thereof is characterized in that: the restriction of flow regulating valve can be opened on throttling valve core, can be throttling pore radially, also axial throttling channel.
3. a kind of damper for air suspension according to claim 1 and self-adaptive damping adjustment method thereof is characterized in that: but the cavity volume filling liquid on rebound valve spool 3 and piston rod 1 top is to improve its speed of response.
4. a kind of damper for air suspension according to claim 1 and self-adaptive damping adjustment method thereof is characterized in that: the structural shape of bumper can be various structural shapes such as monotubular formula, double-cylinder type, inflatable, oil gas formula.
5. a kind of damper for air suspension according to claim 1 and self-adaptive damping adjustment method thereof is characterized in that: it can be various structural shapes that pair compression valve 12 on the cylinder barrel 2 and benefit are tasted valve 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031797A CN101628533A (en) | 2008-07-17 | 2008-07-17 | Damper for air suspension and self-adaptive damping adjustment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031797A CN101628533A (en) | 2008-07-17 | 2008-07-17 | Damper for air suspension and self-adaptive damping adjustment method thereof |
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| CN101628533A true CN101628533A (en) | 2010-01-20 |
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| CN200810031797A Pending CN101628533A (en) | 2008-07-17 | 2008-07-17 | Damper for air suspension and self-adaptive damping adjustment method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330785A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Composite air spring for static rigidity adjustment by filling liquid and impact reduction with auxiliary air chamber |
| CN102330775A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating dynamic rigidity according to adaptive pressure and buffering step pressure |
| CN102401074A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring for adjusting dynamic stiffness along with displacement of air bag |
| CN102401061A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring for adjusting static stiffness by filling liquid and adjusting dynamic stiffness by self adaptation |
| CN103264628A (en) * | 2013-05-28 | 2013-08-28 | 哈尔滨工业大学 | Fault-tolerant self-adaptation control method of automobile active suspension system |
| CN103403420A (en) * | 2011-02-28 | 2013-11-20 | 艾利盖特阀门厂有限责任公司 | Residual pressure valve |
| CN103470677A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Damper |
| CN104482098A (en) * | 2014-12-29 | 2015-04-01 | 上海瑞尔实业有限公司 | Shock absorber special for electronic control pneumatic suspension |
| CN107499084A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | A kind of air pressure hangs adjusting means |
| CN107989947A (en) * | 2017-10-11 | 2018-05-04 | 安徽工程大学 | A kind of more piston damping adjustable shock absorber mechanisms |
| CN108433813A (en) * | 2018-04-18 | 2018-08-24 | 合肥美亚光电技术股份有限公司 | Filiform detection device and with its master-slave mode intervention operation remote operating system |
| CN111886145A (en) * | 2018-03-28 | 2020-11-03 | 日立汽车系统株式会社 | Air suspension system and camera cleaning system |
| CN113280070A (en) * | 2021-06-10 | 2021-08-20 | 长安大学 | Eight-stage damping automatic adjustment shock absorber |
| CN114012576A (en) * | 2022-01-05 | 2022-02-08 | 山东煜可医疗科技有限公司 | Grinding machine tool |
-
2008
- 2008-07-17 CN CN200810031797A patent/CN101628533A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403420B (en) * | 2011-02-28 | 2016-01-20 | 艾利盖特阀门厂有限责任公司 | Residual pressure valve |
| US9109709B2 (en) | 2011-02-28 | 2015-08-18 | Alligator Ventilfabrik Gmbh | Residual pressure valve |
| CN103403420A (en) * | 2011-02-28 | 2013-11-20 | 艾利盖特阀门厂有限责任公司 | Residual pressure valve |
| CN102401061A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring for adjusting static stiffness by filling liquid and adjusting dynamic stiffness by self adaptation |
| CN102401074A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring for adjusting dynamic stiffness along with displacement of air bag |
| CN102330785A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Composite air spring for static rigidity adjustment by filling liquid and impact reduction with auxiliary air chamber |
| CN102330775A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating dynamic rigidity according to adaptive pressure and buffering step pressure |
| CN103264628A (en) * | 2013-05-28 | 2013-08-28 | 哈尔滨工业大学 | Fault-tolerant self-adaptation control method of automobile active suspension system |
| CN103264628B (en) * | 2013-05-28 | 2015-04-22 | 哈尔滨工业大学 | Fault-tolerant self-adaptation control method of automobile active suspension system |
| CN103470677A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Damper |
| CN104482098A (en) * | 2014-12-29 | 2015-04-01 | 上海瑞尔实业有限公司 | Shock absorber special for electronic control pneumatic suspension |
| CN104482098B (en) * | 2014-12-29 | 2016-05-11 | 上海瑞尔实业有限公司 | A kind of electronic control air suspension Special shock absorber |
| CN107499084B (en) * | 2017-09-28 | 2024-03-19 | 浙江路得坦摩汽车部件股份有限公司 | Air pressure suspension adjusting device |
| CN107499084A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | A kind of air pressure hangs adjusting means |
| CN107989947A (en) * | 2017-10-11 | 2018-05-04 | 安徽工程大学 | A kind of more piston damping adjustable shock absorber mechanisms |
| CN111886145A (en) * | 2018-03-28 | 2020-11-03 | 日立汽车系统株式会社 | Air suspension system and camera cleaning system |
| CN111886145B (en) * | 2018-03-28 | 2023-09-08 | 日立安斯泰莫株式会社 | Air suspension system and camera cleaning system |
| CN108433813A (en) * | 2018-04-18 | 2018-08-24 | 合肥美亚光电技术股份有限公司 | Filiform detection device and with its master-slave mode intervention operation remote operating system |
| CN108433813B (en) * | 2018-04-18 | 2024-02-06 | 合肥美亚光电技术股份有限公司 | Filiform object detection device and master-slave intervention operation remote operation system with same |
| CN113280070A (en) * | 2021-06-10 | 2021-08-20 | 长安大学 | Eight-stage damping automatic adjustment shock absorber |
| CN113280070B (en) * | 2021-06-10 | 2022-09-06 | 长安大学 | Eight-stage damping automatic adjustment shock absorber |
| CN114012576A (en) * | 2022-01-05 | 2022-02-08 | 山东煜可医疗科技有限公司 | Grinding machine tool |
| CN114012576B (en) * | 2022-01-05 | 2022-04-12 | 山东煜可医疗科技有限公司 | Grinding machine tool |
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Owner name: HU NAN YITONG LIANHUA AUTOMOTIVE SUSPENSION CO., L Free format text: FORMER OWNER: HE HE Effective date: 20110426 |
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Free format text: CORRECT: ADDRESS; FROM: 410076 NO. 45, CHILING ROAD, CHANGSHA CITY, HU NAN PROVINCE TO: 410000 NO. MO, TORCH CITY, HIGH-TECH. INDUSTRIAL DEVELOPMENT ZONE, CHANGSHA CITY, HU NAN PROVINCE |
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Effective date of registration: 20110426 Address after: 410000 torch city MO, hi tech Industrial Development Zone, Hunan, Changsha Applicant after: Hunan YT Lotus Vehicle Suspension Tech. Co., Ltd. Address before: 410076 No. 45, Chek Lap Road, Changsha, Hunan Applicant before: He Qing |
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Open date: 20100120 |