CN104149573A - Air suspension leveling control system automatically ascending and descending - Google Patents
Air suspension leveling control system automatically ascending and descending Download PDFInfo
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- CN104149573A CN104149573A CN201410420497.2A CN201410420497A CN104149573A CN 104149573 A CN104149573 A CN 104149573A CN 201410420497 A CN201410420497 A CN 201410420497A CN 104149573 A CN104149573 A CN 104149573A
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Abstract
The invention discloses an air suspension leveling control system automatically ascending and descending. The air suspension leveling control system automatically ascending and descending comprises four air bags, three height valves, three one-way valves, a normally-open two-position three-way electromagnetic valve descending valve, a normally-closed two-position three-way electromagnetic valve ascending valve, an air bag air storing cylinder and a three-gear function switch. The three height valves are arranged on an air suspension in the mode that two of the height valves are arranged on the front part and the other one height valve is arranged on the rear part. According to the air suspension leveling control system, the height valves with the lifting functions are adopted in the ascending process, the three height valves are connected with an air source through the same two-position three-way electromagnetic valve ascending valve to control on and off of an electromagnetic valve to achieve the ascending function, and according to the descending function, the two-position three-way electromagnetic valve descending valve is additionally arranged on a lifting system main gas supply pipeline. The air suspension leveling control system is low in price, simple in structure and convenient to adjust and maintain. A driver can ascend or descend a vehicle body through a simple action of pressing a switch, the ascending amplitude is 60 mm, and the descending amplitude is 80 mm. When the vehicle runs through a muddy and hollow road surface, the passing performance of the vehicle can be improved by lifting an underpan.
Description
Technical field
The present invention relates to bus body height control technology field, be specifically related to the air suspension levelling control system of the autonomous lifting of a kind of energy.
Background technology
The high-grade bus that air suspension is housed all mates air suspension levelling control system, and it comprises air bellow, air receiver, levelling valve, air bag, limiting component etc.This air suspension levelling control system can regulate air bag suction quantity to keep the height of vehicle body in certain limit according to the load-carrying of car and road conditions, improves the traveling comfort of vehicle and the crossing ability on different roads.But the heave amplitude on chassis is limited, and chaufeur can not independently regulate the height of vehicle body.And getting on or off the bus for convenience of passenger, and keep in motion stable of vehicle, reduce its center of gravity, in the design of modern bus, all require to reduce the height that body platform or one-level are marked time as far as possible, but owing to being subject to the restriction of road clearance, bodywork height again can not be too low, therefore the contradiction between necessary comfort feature and the trafficability that solves passenger getting on/off.
The air suspension levelling control system of current each passenger vehicle autonomous elevating function that company fills is divided into two large classes, the first kind: electronic type jacking system, be on levelling valve, to have angular transducer, monitor fork angle by ECU and judge whether that the electromagnetic valve of unlatching or closing control air bag inflation/deflation regulates air bag height, representational product is the ECAS of German WABCO company, the Based Intelligent Control of this Realization of Product to bodywork height, but price is high, Installation and Debugging complexity, maintenance cost is high.Equations of The Second Kind: mechanical ascending and descending system, making levelling valve swing up and down certain angle by air operated control realizes the inflation/deflation of air bag to regulate air bag height, representational product is German Knorr-Bremse company Air Suspension for Commercial Vehicles control system, this product price is placed in the middle, but it is large to take up room, complex structure.
Summary of the invention
For the deficiency of above-mentioned prior art existence, the object of this invention is to provide a kind of air suspension levelling control system of autonomous lifting, the stability that it has further improved crossing ability and the driving process of vehicle, has realized the continuous rising of vehicle body.
Technical scheme of the present invention is: a kind of air suspension levelling control system of autonomous lifting, comprise four air bags, three levelling valves, three check valves, often open two-bit triplet electromagnetic valve and fall valve, normally closed two-bit triplet electromagnetic valve lift valve, air bag air receiver, third gear functional switch, it is characterized in that, described three levelling valves one are arranged on air suspension afterwards according to the first two, each levelling valve all has five interfaces, it is admission port, two air extractor ducts that communicate, exhausr port, control mouth, a wherein air bag of the each connection of one end air extractor duct of two levelling valves above, one end air extractor duct of a levelling valve next connects two air bags, the other end air extractor duct of three levelling valves connects respectively the admission port of three check valves by tracheae, the air extractor duct of three check valves is often opened the air extractor duct that valve falls in two-bit triplet electromagnetic valve and is connected with same by tracheae, the admission port of three levelling valves is also connected with the air extractor duct of often opening two-bit triplet electromagnetic valve by tracheae, and the control mouth of three levelling valves is connected with the air extractor duct of same normally closed two-bit triplet electromagnetic valve lift valve by tracheae, often open that the admission port of valve falls in two-bit triplet electromagnetic valve and the admission port of normally closed two-bit triplet electromagnetic valve lift valve is all connected with air bag air receiver, often open two-bit triplet electromagnetic valve fall valve, normally closed two-bit triplet electromagnetic valve lift valve connect by controlling cable respectively third gear functional switch reduction gear, gear raises.
Advantage of the present invention: the present invention rises and adopts the levelling valve with elevating function, and three levelling valves are connected with source of the gas by same two-bit triplet electromagnetic valve (lift valve, normally closed), control the break-make of this electromagnetic valve to realize rising function; Decline function is on the main supply air line of jacking system, to install a two-bit triplet electromagnetic valve (fall valve, often open) additional.Give after this electromagnetic valve energising, closed electromagnetic valve cuts off main supply air line, and the pressurized air in air bag realizes deflation course by check valve via electromagnetic valve exhausr port.This system price is cheap, simple in structure, adjustment and easy to maintenance, chaufeur can be realized by pressing simple action of switch rising or the reduction of vehicle body, heave amplitude is rising 60mm, decline 80mm, and trafficability is improved on the vehicle chassis that can raise when by muddy and potted road surface.Vehicle on-board and off-board and can reduce bodywork height during by limit for height roadblock.
Brief description of the drawings
Fig. 1 is structure principle chart of the present invention;
In figure,
for air bag;
for levelling valve;
for check valve;
for falling valve (often opening two-bit triplet electromagnetic valve);
for lift valve (normally closed two-bit triplet electromagnetic valve);
for air bag air receiver;
for third gear functional switch.
Detailed description of the invention
Now in conjunction with the following drawings, invention is described in detail.
Embodiment 1: referring to Fig. 1, the air suspension levelling control system of autonomous lifting of the present invention, comprises four air bags
, three levelling valves 2., three check valves 3., often open two-bit triplet electromagnetic valve fall valve 4., normally closed two-bit triplet electromagnetic valve lift valve 5., air bag air receiver 6., third gear functional switch 7..Vehicle determines that according to 3 2. plane principles are provided with three levelling valves, and 2. three levelling valves one are arranged on air suspension afterwards according to the first two, and wherein 1. 2. two levelling valves of front overhang respectively control an air bag, and 1. 2. levelling valve of rear overhang control two air bags.2. levelling valve is the levelling valve with elevating function of German import, 2. this kind of levelling valve have five interfaces, be admission port (1 mouthful), two air extractor ducts that communicate (2 mouthfuls), exhausr port (3 mouthfuls), control mouthful (4 mouthfuls), common levelling valve only has three interfaces without controlling mouthful (4 mouthfuls).Wherein above 1. two levelling valves one end air extractor duct (one of them 2 mouthfuls) 2. respectively connects an air bag, after levelling valve one end air extractor duct (one of them 2 mouthfuls) 2. connect two air bags 1..The other end air extractor duct (2 mouthfuls of another ones) of three levelling valves connects respectively three check valves admission port (1 mouthful) 3. by tracheae; Three check valves air extractor duct (2 mouthfuls) is 3. fallen valve air extractor duct (2 mouthfuls) 4. and is connected with the same two-bit triplet electromagnetic valve of often opening by tracheae, and three levelling valves admission port (1 mouthful) 2. also falls valve by tracheae and the same two-bit triplet electromagnetic valve of often opening
air extractor duct (2 mouthfuls) connect, three levelling valves control mouth (4 mouthfuls) is 2. connected with same normally closed two-bit triplet electromagnetic valve lift valve air extractor duct (2 mouthfuls) 5. by tracheae; Often open two-bit triplet electromagnetic valve and fall valve admission port (1 mouthful) 4. and be all 6. connected with air bag air receiver with normally closed two-bit triplet electromagnetic valve lift valve admission port (1 mouthful) 5., fall valve 4., 5. by controlling, cable connects reduction gear down 7. of third gear functional switch to lift valve, gear up raises respectively.
Because three levelling valves have two air extractor ducts that communicate, so 1. 3. check valve communicate with air bag.Check valve effect is 3. to prevent that vehicle is in the time normally travelling, and 1. the pressurized air of falling valve air extractor duct (2 mouthfuls) 4. enters air bag through levelling valve air extractor duct (2 mouthfuls) 2.; Also having is exactly falling valve while 4. working, and the pressurized air of air bag in 1. can be by check valve 3. then via falling valve exhausr port (3 mouthfuls) 4. discharged to atmosphere, to realize car load decline function.
When normal vehicle operation, functional switch is 7. in normal gear off, the equal no power of valve falls in lift valve, now lift valve 5. admission port (1 mouthful) close, lift valve 5. air extractor duct (2 mouthfuls) communicates with exhausr port (3 mouthfuls), 2. levelling valve controls mouthful (4 mouthfuls) does not have pressure, fall valve 4. admission port (1 mouthful) communicate with air extractor duct (2 mouthfuls), give 2. admission port (1 mouthful) air feed of levelling valve, now levelling valve is without elevating function, but the levelling function that still has common levelling valve to possess, can adjust levelling valve 2. control air bag 1. height vehicle is adjusted to the level attitude of a setting, and 1. inflation/deflation is 1. substantially constant on predefined height with maintenance air bag to change to control air bag according to the angle of leveling bar in the process of moving.
7. functional switch is got to and reduced gear when down, and 5. lift valve keeps normality, lift valve 5. air extractor duct (2 mouthfuls) communicate with exhausr port (3 mouthfuls); 4. switch on and fall valve, falling valve admission port (2 mouthfuls) 4. communicates with exhausr port (3 mouthfuls), now 3. the pressurized air of four air bags in 1. arrive and fall air extractor duct (2 mouthfuls) 4. of valve and discharge through exhausr port (3 mouthfuls) through air extractor duct (2 mouthfuls) 2. of three levelling valves and check valve respectively, 1. air bag exits, and bodywork height reduces.When 7. switch pulls back to normal gear off, 2. levelling valve by carrying out the levelling function of common levelling valve, 1. returns on predefined height air bag.
When switch is got to rising shelves up, the lift valve unlatching of 5. switching on, lift valve admission port (1 mouthful) communicates with air extractor duct (2 mouthfuls), fall valve and 4. keep normality, fall valve 4. admission port (1 mouthful) communicate with air extractor duct (2 mouthfuls), 5. the pressurized air of air bag air receiver in 6. arrive levelling valve control mouth (4 mouthfuls) 2. through lift valve, the pressure that 2. levelling valve controls mouthful (4 mouthfuls) makes 2. admission port (1 mouthful) and air extractor duct (2 mouthfuls) conducting of levelling valve, air bag air receiver is 6. through falling pressurized air that 4. valve come through 2. admission port (1 mouthful) of levelling valve, 1. air extractor duct (2 mouthfuls) enters air bag, bodywork height raises.This kind of levelling valve also has lifting position-limit function, and the air bag levelling valve admission port (1 mouthful) after 0mm that 1. rises is 6. closed with air extractor duct (2 mouthfuls), and air bag is no longer rising 1..When 7. switch pulls back to normal gear off, 2. levelling valve by carrying out the levelling function of common levelling valve, returns on predefined height air bag.
Claims (1)
1. the air suspension levelling control system of an autonomous lifting, comprise four air bags, three levelling valves, three check valves, often open two-bit triplet electromagnetic valve and fall valve, normally closed two-bit triplet electromagnetic valve lift valve, air bag air receiver, third gear functional switch, it is characterized in that, described three levelling valves one are arranged on air suspension afterwards according to the first two, each levelling valve all has five interfaces, it is admission port, two air extractor ducts that communicate, exhausr port, control mouth, a wherein air bag of the each connection of one end air extractor duct of two levelling valves above, one end air extractor duct of a levelling valve next connects two air bags, the other end air extractor duct of three levelling valves connects respectively the admission port of three check valves by tracheae, the air extractor duct of three check valves is often opened the air extractor duct that valve falls in two-bit triplet electromagnetic valve and is connected with same by tracheae, the admission port of three levelling valves is also connected with the air extractor duct of often opening two-bit triplet electromagnetic valve by tracheae, and the control mouth of three levelling valves is connected with the air extractor duct of same normally closed two-bit triplet electromagnetic valve lift valve by tracheae, often open that the admission port of valve falls in two-bit triplet electromagnetic valve and the admission port of normally closed two-bit triplet electromagnetic valve lift valve is all connected with air bag air receiver, often open two-bit triplet electromagnetic valve fall valve, normally closed two-bit triplet electromagnetic valve lift valve connect by controlling cable respectively third gear functional switch reduction gear, gear raises.
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| CN201410420497.2A CN104149573B (en) | 2014-08-25 | 2014-08-25 | A kind of air suspension levelling control system of autonomous lifting |
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| CN201410420497.2A CN104149573B (en) | 2014-08-25 | 2014-08-25 | A kind of air suspension levelling control system of autonomous lifting |
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| CN104149573B CN104149573B (en) | 2016-05-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| WO2017211167A1 (en) * | 2016-06-08 | 2017-12-14 | 江苏大学 | Auto-leveling drive axle device for wheeled tractor, and leveling method |
| CN108944330A (en) * | 2018-08-30 | 2018-12-07 | 汽解放汽车有限公司 | A kind of airsuspension system and tractor of mechanical more height adjustments |
| CN109466266A (en) * | 2017-09-08 | 2019-03-15 | 天津锐微科技有限公司 | Mountainous region special vehicle center of gravity automatic adjusument pneumatic suspension systems and control method |
| CN114655323A (en) * | 2022-03-10 | 2022-06-24 | 东风华神汽车有限公司 | Cab airbag suspension system capable of being charged and discharged quickly and control method |
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| JP2002166718A (en) * | 2000-12-04 | 2002-06-11 | Sanwa Seiki Co Ltd | Air spring device for vehicle |
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| WO2008101627A1 (en) * | 2007-02-19 | 2008-08-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pneumatic suspension unit comprising control valves that are exclusively actuated by a pressure-medium |
| CN202623841U (en) * | 2012-04-11 | 2012-12-26 | 郑州宇通客车股份有限公司 | Automobile body lifting system linked with passenger bus door state |
| CN103863044A (en) * | 2014-03-18 | 2014-06-18 | 安徽安凯汽车股份有限公司 | Automobile mechanical pneumatic suspension control system and control method thereof |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002166718A (en) * | 2000-12-04 | 2002-06-11 | Sanwa Seiki Co Ltd | Air spring device for vehicle |
| CN2700148Y (en) * | 2004-05-10 | 2005-05-18 | 姜铁军 | Electric control air suspension lifting and side-inclination device for automobile |
| WO2008101627A1 (en) * | 2007-02-19 | 2008-08-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pneumatic suspension unit comprising control valves that are exclusively actuated by a pressure-medium |
| CN202623841U (en) * | 2012-04-11 | 2012-12-26 | 郑州宇通客车股份有限公司 | Automobile body lifting system linked with passenger bus door state |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| WO2017211167A1 (en) * | 2016-06-08 | 2017-12-14 | 江苏大学 | Auto-leveling drive axle device for wheeled tractor, and leveling method |
| US10625796B2 (en) | 2016-06-08 | 2020-04-21 | Jiangsu University | Auto-leveling drive axle device for wheeled tractor, and leveling method |
| CN109466266A (en) * | 2017-09-08 | 2019-03-15 | 天津锐微科技有限公司 | Mountainous region special vehicle center of gravity automatic adjusument pneumatic suspension systems and control method |
| CN108944330A (en) * | 2018-08-30 | 2018-12-07 | 汽解放汽车有限公司 | A kind of airsuspension system and tractor of mechanical more height adjustments |
| CN108944330B (en) * | 2018-08-30 | 2024-01-19 | 一汽解放汽车有限公司 | Mechanical multi-height-adjustment air suspension system and tractor |
| CN114655323A (en) * | 2022-03-10 | 2022-06-24 | 东风华神汽车有限公司 | Cab airbag suspension system capable of being charged and discharged quickly and control method |
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| Publication number | Publication date |
|---|---|
| CN104149573B (en) | 2016-05-25 |
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Address after: 415000 Changde, Hunan economic and Technological Development Zone, Shan Shan town, Mu Shan village, No. 96, Qian Ming Road. Patentee after: Changde Zhong Car New Energy Automobile Co., Ltd. Address before: 415001 Changde, Hunan Changde economic and Technological Development Zone, Shan Shan town, Mu Shan village, No. 96, Qian Ming Road. Patentee before: Dahan Automobile (Group) Corporation |