CN101623994A - Novel air spring rigidity adaptive continuous adjustment system - Google Patents
Novel air spring rigidity adaptive continuous adjustment system Download PDFInfo
- Publication number
- CN101623994A CN101623994A CN200810031702A CN200810031702A CN101623994A CN 101623994 A CN101623994 A CN 101623994A CN 200810031702 A CN200810031702 A CN 200810031702A CN 200810031702 A CN200810031702 A CN 200810031702A CN 101623994 A CN101623994 A CN 101623994A
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- air
- rigidity
- regulating valve
- flow regulating
- gas tank
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Abstract
An air spring plays an important role in improving the smoothness and comfort of automobiles and protecting roads and goods in the modern automobile suspension system. A primary air chamber and a secondary air chamber are connected and a solenoid valve on a passage between the primary air chamber and the secondary air chamber is used to change the volume of a compressed gas in order to enlarge the rigidity range of an air spring. A rigidity regulating control signal is acquired by multiple sensors and is subjected to the treatment by a computer which gives an action command to stepwise adjust the rigidity of the air spring to divide the rigidity of the air spring into soft shift and hard shifts. The response time delay of the control method is a little bit long. The invention provides a novel rigidity adjustment system which is developed to solve the problem. The novel rigidity adjustment system directly uses an internal air cell pressure signal to control the opening of a choke on a passage between the primary and secondary air chambers so as to continuously adjust the rigidity and uses a pressure difference between the primary and secondary air chambers to control another throttle valve on the passage so as to weaken the impact of a bump on an automobile body. The system has a simple structure, quick and reliable response and low cost and surpasses the prior art.
Description
One, technical field:
The present invention relates to rigidity continuous adjustment system and the method for a kind of vehicle air suspension with air bellow.The air bellow that this self adaptation rigidity is regulated especially is adapted to 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 carrying big bus, the city bus big bus has adopted air bellow widely in the suspension system of shipping truck and rail traffic vehicles and other vehicle.China is also wideling popularize and mandatory employing air bellow in recent years in order to catch up with and surpass this developing direction.In the air bellow technology of constantly development, in order further to enlarge the scope of the stiffness variable of air bellow, more be applicable to the variation of car load in order to it, people have carried out deep exploration.At present the technology of comparative maturity is that air chamber with air bellow is divided into major and minor air chamber, realizes that by the electromagnetic valve of controlling on the interface channel between major and minor air chamber the change of elasticity gas volume reaches the rigidity that changes air bellow.Rigidity sectional type control is generally adopted in the control of the rigidity of air bellow in the airsuspension system of non-active suspension, with the rigidity of air bellow be divided into soft, hard two retainings or soft, in, hard three retainings.The control signal of this rigidity control system is delivered and is sent control command after micro controller system is handled by the multiple sensor collection, is regulated the rigidity of air bellow by actuating unit.Its main deficiency is that the response time lag of system is big slightly; Secondly, because the acquisition process of the signal of system is comparatively numerous and diverse to carrying out, its cost is far above common air suspension; Moreover the rigidity of air bellow can not be regulated continuously.
Three, goal of the invention and solution:
Purpose of the present invention will be developed cheaply a kind of exactly, can be automatically according to the load of vehicle with travel and the situation self adaptation of road is regulated the air bellow of rigidity, a kind of spring stiffness adaptive continuous adjustment system of simple and reliable, responding fast.
Solution of the present invention is: the electric signal that control signal of the prior art is sent by ECU is changed into the air pressure signal in the air-spring bellows, directly act on an end of an air slide spool by this pressure signal, and the other end is by the spring force effect.When vehicle was 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, and the restriction of this flow regulating valve is in maximum open, and the rigidity of air bellow is minimum; Load increase when vehicle, the air bag inner air pressure rises, the thrust that sectional area produced that acts on valve core of the spool valve increases, the promotion valve core of the spool valve overcomes spring force and moves down, reach new balance, valve core of the spool valve moves down the restriction on the interface channel that has promptly turned down between major and minor air chamber, has dwindled the elasticity gas volume, the rigidity of air bellow is increased, adapt to corresponding load.When vehicle turns round, because action of inertia leans on the air bag inner air pressure of the air bellow in the bend outside to rise, meanwhile, turn down the restriction on the interface channel between major and minor air chamber equally, the rigidity of air bellow is increased, thereby stoped the further inclination of vehicle body; When vehicle jack rabbit start or hard brake stop, if the rigidity of air bellow does not increase thereupon, same because action of inertia, can make vehicle body produce the layback and the phenomenon that leans forward, the present invention has equally when vehicle body produces layback and lean forward generation, improve the function of the rigidity of back, preceding air bellow, 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 present invention is another flow regulating valve by the pressure reduction control of major and minor air chamber in parallel on the passage of major and minor air chamber.When wheel is run into projection, the pressure of main gas tank increases rapidly, the pressure of this growth has caused the pressure reduction of major and minor air chamber to increase rapidly, when this with differential pressure action in the thrust that sectional area produced of spool greater than spring force, this valve is opened rapidly, strengthened the choke area on the interface channel between major and minor air chamber, promptly reduced the rigidity of air bellow, 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 major and minor air chamber descends, and this valve promotes to cut out rapidly by spring force, and it is normal that the air bag inner air pressure recovers, and the rigidity of air bellow is also restored thereupon.
Control signal of the present invention is directly taken from the pressure of main gas tank, need not to gather and conversion, also need not by sending regulating command again after the ECU processing, and actuating unit is carried out it again.Control signal and regulating command are integrated, and effect is rapid, reliable, and its response time lag can be ignored, and the rigidity of air bellow is regulated sensitivity and greatly improved; Because control signal and regulating command are integrated, need not to have again the acquisition processing system of signal, cost greatly descends; Because control command of the present invention is the pressure of major and minor air chamber, the rigidity of air bellow is regulated with the pressure variation of main gas tank, regulates smooth and easy continuous.
Four, description of drawings:
Accompanying drawing 1 is a systematic schematic diagram of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: work as stationary vehicle, when unloaded, air bellow main gas tank 1 inner air pressure multiply by the thrust that sectional area produced of spool of flow regulating valve 3 and the spring force balance of spring 5, the restriction of flow regulating valve 3 is in maximum open, the rigidity of air bellow is minimum, load increase when vehicle, main gas tank's 1 inner air pressure rises, acting on the thrust that is produced on the end face of spool of flow regulating valve 3 increases, the spring force that the spool of promotion flow regulating valve 3 overcomes spring 5 moves down, reach new balance, the spool of flow regulating valve 3 moves down the restriction on the interface channel that has promptly turned down 2 of main gas tank 1 and accessory air-spaces, dwindled the elasticity gas volume, the rigidity of air bellow is increased, adapt to corresponding load.When vehicle turns round, because action of inertia rises by the air pressure in the main gas tank 1 of the air bellow outside the bend, turned down the restriction of flow regulating valve 3 simultaneously, dwindled the elasticity gas volume, the rigidity of air bellow 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 1 of air bellow in air pressure rise, turned down the restriction of flow regulating valve 3 simultaneously, dwindle the elasticity gas volume, the rigidity of air bellow is increased, stoped leaning forward of vehicle body; Otherwise when the vehicle jack rabbit start, the present invention has the function of the rigidity that improves the back air bellow equally, has suppressed the aggravation of layback phenomenon effectively.When wheel is run into projection, in main gas tank 1, produced a pressure pulsation, this pressure pulsation is in the restriction that turns down flow regulating valve 3, caused the pressure reduction of main gas tank 1 and accessory air-space 2 to increase and opened simultaneously the flow regulating valve 4 of choke area gradient rapidly greater than flow regulating valve 3, strengthened the choke area on the interface channel of 2 of main gas tank 1 and accessory air-spaces, promptly reduced the rigidity of air bellow, 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 major and minor air chamber descends, and flow regulating valve 4 cuts out rapidly, and it is normal that main gas tank's 1 inner air pressure recovers, and the rigidity of air bellow is also restored thereupon.
Claims (7)
1. novel air spring rigidity adaptive continuous adjustment system, constitute by main gas tank 1, accessory air-space 2, flow regulating valve 3, flow regulating valve 4, spring 5 and 6 etc., it is characterized in that: when stationary vehicle, zero load, air bellow main gas tank 1 inner air pressure multiply by the thrust that sectional area produced of spool of flow regulating valve 3 and the spring force balance of spring 5, the restriction of flow regulating valve 3 is in maximum open, and the rigidity of air bellow is minimum; Load increase when vehicle, main gas tank's 1 inner air pressure rises, acting on the thrust that is produced on the end face of spool of flow regulating valve 3 increases, the spring force that the spool of promotion flow regulating valve 3 overcomes spring 5 moves down, reach new balance, the spool of flow regulating valve 3 moves down the restriction on the interface channel that has promptly turned down 2 of main gas tank 1 and accessory air-spaces, has dwindled the elasticity gas volume, the rigidity of air bellow is increased, adapt to corresponding load; When vehicle turns round, because action of inertia rises by the air pressure in the main gas tank 1 of the air bellow outside the bend, turned down the restriction of flow regulating valve 3 simultaneously, dwindled the elasticity gas volume, the rigidity of air bellow 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 1 of air bellow in air pressure rise, turned down the restriction of flow regulating valve 3 simultaneously, dwindle the elasticity gas volume, the rigidity of air bellow is increased, stoped leaning forward of vehicle body; Otherwise when the vehicle jack rabbit start, the present invention has the function of the rigidity that improves the back air bellow equally, has suppressed the aggravation of layback phenomenon effectively; When wheel is run into projection, in main gas tank 1, produced a pressure pulsation, this pressure pulsation is in the restriction that turns down flow regulating valve 3, caused the pressure reduction of main gas tank 1 and accessory air-space 2 to increase and opened simultaneously the flow regulating valve 4 of choke area gradient rapidly greater than flow regulating valve 3, strengthened the choke area on the interface channel of 2 of main gas tank 1 and accessory air-spaces, promptly reduced the rigidity of air bellow, 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 major and minor air chamber descends, and flow regulating valve 4 cuts out rapidly, and it is normal that main gas tank's 1 inner air pressure recovers, and the rigidity of air bellow is also restored thereupon.
2. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1, it is characterized in that: flow regulating valve 3, flow regulating valve 4 can make up integrated air bellow main gas tank 1 inside that is loaded on, air bellow main gas tank 1 outside that also can discrete component places.
3. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1 is characterized in that: main gas tank 1 and accessory air-space 2 can be multiple patterns such as capsule formula, membrane type, combined type.
4. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1, it is characterized in that: flow regulating valve 3, multiple patterns such as flow regulating valve 4 can guiding valve, rotary valve, dish valve, its restriction can be axial grooved, also multiple pattern such as radial hole type.
5. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1 is characterized in that: the pull back spring of flow regulating valve 3 and flow regulating valve 4 can be adjustable, also can be multiple structural shape such as nonadjustable.
6. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1 is characterized in that: can mechanical positioner be set on the top of flow regulating valve 3, so that under specific circumstances, artificially system be provided with soft, the hard gear of rigidity.
7. a kind of novel air spring rigidity adaptive continuous adjustment system according to claim 1 is characterized in that: this air spring rigidity adaptive continuous adjustment system can be applied on the adaptive damping bumper, constitutes a kind of adaptive damping control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031702A CN101623994A (en) | 2008-07-08 | 2008-07-08 | Novel air spring rigidity adaptive continuous adjustment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031702A CN101623994A (en) | 2008-07-08 | 2008-07-08 | Novel air spring rigidity adaptive continuous adjustment system |
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| CN101623994A true CN101623994A (en) | 2010-01-13 |
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| CN200810031702A Pending CN101623994A (en) | 2008-07-08 | 2008-07-08 | Novel air spring rigidity adaptive continuous adjustment system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072826A (en) * | 2010-11-19 | 2011-05-25 | 江苏大学 | Volume variable air spring auxiliary chamber experiment device and method |
| CN102287471A (en) * | 2011-07-19 | 2011-12-21 | 杨洁 | Dynamic stiffness adjusting air spring capable of adapting to pressure-volume combination |
| CN102330774A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with stiffness adjusted by filler and pressure and step-pressure buffer |
| CN102330776A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating rigidity according to volume and pressure and buffering step pressure |
| 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 |
| CN102330777A (en) * | 2011-07-24 | 2012-01-25 | 杨洁 | Air spring with static stiffness adjusted by piston and dynamic stiffness adjusted by diaphragm throttling hole |
| 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 |
| CN102529631A (en) * | 2011-12-23 | 2012-07-04 | 中联重科股份有限公司 | Buffering protection type oil gas suspension system and vehicle |
| CN102562915A (en) * | 2010-12-30 | 2012-07-11 | 杨洁 | Self-adaptive damping adjustment diverter valve of self-adaptive variable damper shock absorber |
| CN102673341A (en) * | 2012-06-07 | 2012-09-19 | 中国北方车辆研究所 | Modularized vehicle position regulating system |
| 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 |
| CN103260915A (en) * | 2010-11-11 | 2013-08-21 | 普利司通美国轮胎运营有限责任公司 | Air spring having wireless micro and nano sensors |
| CN104047986A (en) * | 2014-06-18 | 2014-09-17 | 江苏大学 | Air spring with variable rigidity |
| CN106183689A (en) * | 2016-07-28 | 2016-12-07 | 江苏科技大学 | The robust control system of a kind of air suspension of automobile and control method thereof |
| CN109780116A (en) * | 2019-03-19 | 2019-05-21 | 郑州科技学院 | Damping and intelligent mobile vehicle |
| CN110861463A (en) * | 2019-11-28 | 2020-03-06 | 安徽江淮汽车集团股份有限公司 | Air suspension control device, air suspension control system and automobile |
| CN112901698A (en) * | 2021-03-10 | 2021-06-04 | 北京航空航天大学 | Isothermal air spring |
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| CN1058183A (en) * | 1991-06-14 | 1992-01-29 | 熊映青 | A kind of leaf spring adds the draft hitch of active cushion blocking |
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| CN2873551Y (en) * | 2005-12-30 | 2007-02-28 | 成都飞机工业（集团）有限责任公司 | Air spring device for controlling magnetic suspension train coach height |
| WO2007068312A1 (en) * | 2005-12-17 | 2007-06-21 | Continental Aktiengesellschaft | Air spring and damper unit having a pilot-controlled main valve |
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| CN1058183A (en) * | 1991-06-14 | 1992-01-29 | 熊映青 | A kind of leaf spring adds the draft hitch of active cushion blocking |
| CN2311654Y (en) * | 1996-12-04 | 1999-03-24 | 铁道部四方车辆研究所 | Flexible bearing adjustable damping air spring |
| WO2007068312A1 (en) * | 2005-12-17 | 2007-06-21 | Continental Aktiengesellschaft | Air spring and damper unit having a pilot-controlled main valve |
| CN1792655A (en) * | 2005-12-30 | 2006-06-28 | 成都飞机工业（集团）有限责任公司 | Automatic controlling apparatus for height of wagon |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260915A (en) * | 2010-11-11 | 2013-08-21 | 普利司通美国轮胎运营有限责任公司 | Air spring having wireless micro and nano sensors |
| CN103260915B (en) * | 2010-11-11 | 2016-05-25 | 普利司通美国轮胎运营有限责任公司 | There is the air spring of radio micro and nano-sensor |
| CN102072826B (en) * | 2010-11-19 | 2012-08-29 | 江苏大学 | Volume variable air spring auxiliary chamber experiment device and method |
| CN102072826A (en) * | 2010-11-19 | 2011-05-25 | 江苏大学 | Volume variable air spring auxiliary chamber experiment device and method |
| CN102562915A (en) * | 2010-12-30 | 2012-07-11 | 杨洁 | Self-adaptive damping adjustment diverter valve of self-adaptive variable damper shock absorber |
| 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 |
| CN102330774A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with stiffness adjusted by filler and pressure and step-pressure buffer |
| CN102330776A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating rigidity according to volume and pressure and buffering step pressure |
| 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 |
| CN102287471A (en) * | 2011-07-19 | 2011-12-21 | 杨洁 | Dynamic stiffness adjusting air spring capable of adapting to pressure-volume combination |
| CN102330777A (en) * | 2011-07-24 | 2012-01-25 | 杨洁 | Air spring with static stiffness adjusted by piston and dynamic stiffness adjusted by diaphragm throttling hole |
| CN102529631A (en) * | 2011-12-23 | 2012-07-04 | 中联重科股份有限公司 | Buffering protection type oil gas suspension system and vehicle |
| CN102673341A (en) * | 2012-06-07 | 2012-09-19 | 中国北方车辆研究所 | Modularized vehicle position regulating system |
| CN102673341B (en) * | 2012-06-07 | 2016-04-20 | 中国北方车辆研究所 | Modular cart appearance control system |
| 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 |
| CN104047986A (en) * | 2014-06-18 | 2014-09-17 | 江苏大学 | Air spring with variable rigidity |
| CN104047986B (en) * | 2014-06-18 | 2016-04-06 | 江苏大学 | A kind of air bellow of stiffness variable |
| CN106183689A (en) * | 2016-07-28 | 2016-12-07 | 江苏科技大学 | The robust control system of a kind of air suspension of automobile and control method thereof |
| CN109780116A (en) * | 2019-03-19 | 2019-05-21 | 郑州科技学院 | Damping and intelligent mobile vehicle |
| CN110861463A (en) * | 2019-11-28 | 2020-03-06 | 安徽江淮汽车集团股份有限公司 | Air suspension control device, air suspension control system and automobile |
| CN110861463B (en) * | 2019-11-28 | 2021-08-10 | 安徽江淮汽车集团股份有限公司 | Air suspension control device, air suspension control system and automobile |
| CN112901698A (en) * | 2021-03-10 | 2021-06-04 | 北京航空航天大学 | Isothermal air spring |
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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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