CN203627631U - Semi-active parallel air spring - Google Patents
Semi-active parallel air spring Download PDFInfo
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- CN203627631U CN203627631U CN201320892254.XU CN201320892254U CN203627631U CN 203627631 U CN203627631 U CN 203627631U CN 201320892254 U CN201320892254 U CN 201320892254U CN 203627631 U CN203627631 U CN 203627631U
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Abstract
The utility model relates to a semi-active parallel air spring. The spring comprises an upper cavity air valve, pressure sensors, a cylinder, an upper air chamber, a sealing ring, a charging pump, a floating piston, a lower air chamber, a lower cavity air valve, an air pipe, a piston rod and a controller. The air spring provided by the utility model has a simple structure, low cost and convenient installation, the spring can generate great elastic force when moving in two directions and the rigidity of the spring is gradually increased; the initial load of an automobile can be obtained by combining the corresponding control algorithm and the signals of upper and lower pressure sensors, the initial rigidity can be adjusted; meanwhile, the spring can achieve the effect of regulating the height of the automobile body and adjusting the rigidity in real time according to the pavement condition during the driving process of the automobile, so the riding comfort, handling stability and passing ability of the automobile can be improved.
Description
Technical field
The utility model belongs to vehicle vibration damping technical field, is specifically related to the adjustable half active pneumatic spring in parallel of a kind of rigidity.
Background technique
The riding comfort of automobile more and more receives people's concern.In prior art, on vehicle, using more spring element majority is helical spring, and its spring rate is constant, although traditional pneumatic spring rigidity can change, but its rigidity increases gradually often in the time of compression, when stretching, but reduce gradually, so just can not meet the requirement of many suspending apparatus or vibration damping equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of half active pneumatic spring in parallel, when can making suspending apparatus or vibration damping equipment in compression and stretching, spring rate can increase gradually, and can, according to its initial stiffness of automobile initial position load regulation, can play the effect that regulates vehicle body height simultaneously; And can, according to pavement behavior in vehicle traveling process, in real time its rigidity be regulated.
The utility model is achieved through the following technical solutions:
A kind of half active pneumatic spring in parallel, comprises epicoele air valve 1, upper cavity pressure sensor 2A, cavity of resorption pressure transducer 2B, cylinder 3, upper gas chamber 4, seal ring 5, epicoele gas-filled pump 6A, cavity of resorption gas-filled pump 6B, floating piston 7, lower chamber 8, cavity of resorption air valve 9, epicoele tracheae 10A, cavity of resorption tracheae 10B, piston rod 11 and controller 12.
Described floating piston 7 is divided into upper gas chamber 4 and 8 two parts of lower chamber the inner space of cylinder 3, there is epicoele air valve 1 in the upper end of upper gas chamber 4, there is cavity of resorption air valve 9 bottom of lower chamber 8, piston rod 11 and floating piston 7 link together, seal ring 5 is enclosed within the outer end of floating piston 7, to guarantee that upper lower chamber has good sealing.
Described epicoele gas-filled pump 6A, cavity of resorption gas-filled pump 6B is connected with epicoele air valve 1, cavity of resorption air valve 9 by epicoele tracheae 10A, cavity of resorption tracheae 10B respectively.
Described upper cavity pressure sensor 2A, upper-end surface and the lower end surface that cavity of resorption pressure transducer 2B is arranged in cylinder 3, carry out Real-Time Monitoring to the gas pressure in upper gas chamber 4, lower chamber 8, and pressure signal be transported in controller 12.
The input end of described controller 12 is connected with the output of two pressure transducer 2A, 2B, and output terminal is connected with gas-filled pump 6A, 6B.
The pressure signal that described controller 12 records according to two pressure transducer 2A, 2B, controls gas-filled pump 6A, 6B and air valve 1,9; In the time that the spring rate of needs is large, controller 12 is controlled gas-filled pump 6A, 6B air chamber 4,8 inflations up and down; When the spring rate hour of needs, controller 12 is controlled air valve 1,9 and is opened, and makes lower chamber 4,8 venting.
Alternatively, the utility model also can only comprise a gas-filled pump 6, is connected with epicoele air valve 1, cavity of resorption air valve 9 by epicoele tracheae 10A, cavity of resorption tracheae 10B.The gas simultaneously upper lower chamber 4,8 being charged and discharged into uniform pressure, realizes the symmetrical spring rigidity of adjustable size; Or realize upper lower chamber 4,8 pressure differences by adjusting air valve 1,9, obtain the asymmetric spring rate of adjustable size.
Working procedure of the present utility model is:
1) before vehicle start, utilize the pressure signal of the upper lower chamber 4,8 that pressure transducer 2A, 2B record, utilize pressure difference can obtain the load of vehicle; In air chamber, be filled with a certain amount of gas from epicoele air valve 1 and cavity of resorption air valve 9 respectively by gas-filled pump 6A, 6B, so both can regulate vehicle body height according to load state, also can control the initial volume of air chamber.
2), when in passive mode, air valve 1,9 is all closed:
Under the effect of extraneous active force, in the time that piston rod 11 moves upward, promote floating piston 7 and move upward, compression upper gas chamber 4, increases the gas pressure of upper gas chamber 4 gradually, and the displacement that piston rod 11 moves up is larger, and the pressure that upper gas chamber 4 produces is larger;
In the time that piston rod 11 moves downward, pull floating piston 7 to move downward, compression lower chamber 8, increases the pressure of lower chamber 8 gradually, and the displacement that piston rod 11 moves down is larger, and the pressure that lower chamber 8 produces is larger;
So just having realized spring rate constantly increases along with the increase of displacement.
3), when in half active mode, the pressure signal that controller 12 records according to two pressure transducer 2A, 2B, controls the open and close of supply gas pressure and the air valve 1,9 of gas-filled pump 6A, 6B in real time; Real-time to upper lower chamber 4,8 inflation/deflations, realize half ACTIVE CONTROL of pneumatic spring in parallel, to improve automobile ride.
The utility model is simple in structure, and cost is relatively cheap, easy for installation, in the time that both direction moves, can produce larger elastic force, and spring rate also increases gradually; And the automobile initial load that can obtain according to upper and lower pressure sensor signal, and regulate its initial stiffness, can play the effect that regulates vehicle body height simultaneously, and can be according to pavement behavior in vehicle traveling process, in real time its rigidity is regulated, to improve riding comfort, control stability and the passing ability of vehicle.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment of the present utility model.
Fig. 2 is another kind of embodiment of the present utility model.
Fig. 3 is load-deflection curve of the present utility model.
In figure:
1, epicoele air valve; 2A, upper cavity pressure sensor; 2B, cavity of resorption pressure transducer;
3, cylinder; 4, upper gas chamber; 5, seal ring; 6, gas-filled pump; 6A, epicoele gas-filled pump;
6B, cavity of resorption gas-filled pump; 7, floating piston; 8, lower chamber; 9, cavity of resorption air valve;
10A, epicoele tracheae; 10B, cavity of resorption tracheae; 11, piston rod; 12, controller;
F, floating piston stressed; The displacement of s, floating piston.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
As Fig. 1, for a kind of embodiment of the present utility model, initiatively pneumatic spring in parallel of shown one half, comprises epicoele air valve 1, upper cavity pressure sensor 2A, cavity of resorption pressure transducer 2B, cylinder 3, upper gas chamber 4, seal ring 5, epicoele gas-filled pump 6A, cavity of resorption gas-filled pump 6B, floating piston 7, lower chamber 8, cavity of resorption air valve 9, epicoele tracheae 10A, cavity of resorption tracheae 10B, piston rod 11 and controller 12.
Described floating piston 7 is divided into upper gas chamber 4 and 8 two parts of lower chamber the inner space of cylinder 3, there is epicoele air valve 1 in the upper end of upper gas chamber 4, there is cavity of resorption air valve 9 bottom of lower chamber 8, piston rod 11 and floating piston 7 link together, seal ring 5 is enclosed within the outer end of floating piston 7, to guarantee that upper lower chamber has good sealing.
Described epicoele gas-filled pump 6A, cavity of resorption gas-filled pump 6B is connected with epicoele air valve 1, cavity of resorption air valve 9 by epicoele tracheae 10A, cavity of resorption tracheae 10B respectively.
Described upper cavity pressure sensor 2A, upper-end surface and the lower end surface that cavity of resorption pressure transducer 2B is arranged in cylinder 3, carry out Real-Time Monitoring to the gas pressure in upper gas chamber 4, lower chamber 8, and pressure signal be transported in controller 12.
The input end of described controller 12 is connected with the output of two pressure transducer 2A, 2B, and output terminal is connected with gas-filled pump 6A, 6B.
The pressure signal that described controller 12 records according to two pressure transducer 2A, 2B, controls gas-filled pump 6A, 6B and air valve 1,9; In the time that the spring rate of needs is large, controller 12 is controlled gas-filled pump 6A, 6B air chamber 4,8 inflations up and down; When the spring rate hour of needs, controller 12 is controlled air valve 1,9 and is opened, and makes lower chamber 4,8 venting.
As shown in Figure 2, be another embodiment of the present utility model, the utility model also can only comprise a gas-filled pump 6, and the gas simultaneously upper lower chamber 4,8 being charged and discharged into uniform pressure is realized the symmetrical spring rigidity of adjustable size; Or realize upper lower chamber 4,8 pressure differences by adjusting air valve 1,9, obtain the asymmetric spring rate of adjustable size.
Fig. 3 is load-deflection curve of the present utility model, i.e. F-s curve, and the reaction force of the stressed F of floating piston is and offers extraneous elastic force, and in figure, certain some place slope of a curve is the spring rate of this point.
Working procedure of the present utility model is:
1) before vehicle start, utilize the pressure signal of the upper lower chamber 4,8 that pressure transducer 2A, 2B record, utilize pressure difference can obtain the load of vehicle; In air chamber, be filled with a certain amount of gas from epicoele air valve 1 and cavity of resorption air valve 9 respectively by gas-filled pump 6A, 6B, so both can regulate vehicle body height according to load state, also can control the initial volume of air chamber.
2), when in passive mode, air valve 1,9 is all closed:
Under the effect of extraneous active force, in the time that piston rod 11 moves upward, promote floating piston 7 and move upward, compression upper gas chamber 4, increases the gas pressure of upper gas chamber 4 gradually, and the displacement that piston rod 11 moves up is larger, and the pressure that upper gas chamber 4 produces is larger;
In the time that piston rod 11 moves downward, pull floating piston 7 to move downward, compression lower chamber 8, increases the pressure of lower chamber 8 gradually, and the displacement that piston rod 11 moves down is larger, and the pressure that lower chamber 8 produces is larger;
So just having realized spring rate and constantly increased along with the increase of displacement, as shown in solid line and dotted line in Fig. 3, is two kinds of symmetrical spring rates, and wherein solid line is under pressure minimum, the spring rate that the utility model can provide; When dotted line provides maximum inflation pressure for gas-filled pump 6A, 6B, the spring rate that the utility model can provide.
3), when in half active mode, the pressure signal that controller 12 records according to two pressure transducer 2A, 2B, controls the open and close of supply gas pressure and the air valve 1,9 of gas-filled pump 6A, 6B in real time; Real-time to upper lower chamber 4,8 inflation/deflations, realize half ACTIVE CONTROL of pneumatic spring in parallel, to improve automobile ride.
It should be noted that the spring rate in the utility model can be symmetrical, can be also asymmetrical, and this can regulate by gas-filled pump 6A, 6B.By regulating arbitrarily as required in the region that regulates the inflation pressure of upper gas chamber 4 and lower chamber 8 that the rigidity of this pneumatic spring can be in Fig. 3 be formed between solid line and dotted line.
Claims (2)
1. one and half actives pneumatic spring in parallel, comprise cylinder (3), upper gas chamber (4), seal ring (5), floating piston (7), lower chamber (8), epicoele tracheae (10A), cavity of resorption tracheae (10B) and piston rod (11), described floating piston (7) is divided into upper gas chamber (4) and (8) two parts of lower chamber the inner space of cylinder (3), piston rod (11) and floating piston (7) are connected, and seal ring (5) is enclosed within the outer end of floating piston (7); It is characterized in that:
Also comprise epicoele air valve (1), upper cavity pressure sensor (2A), cavity of resorption pressure transducer (2B), epicoele gas-filled pump (6A), cavity of resorption gas-filled pump (6B), cavity of resorption air valve (9) and controller (12);
Described epicoele gas-filled pump (6A), cavity of resorption gas-filled pump (6B) are connected with epicoele air valve (1), cavity of resorption air valve (9) by epicoele tracheae (10A), cavity of resorption tracheae (10B) respectively;
Described epicoele air valve (1) and upper cavity pressure sensor (2A) are arranged on the upper end of upper gas chamber (4), and cavity of resorption pressure transducer (2B) and cavity of resorption air valve (9) are arranged on the bottom of lower chamber (8);
The input end of described controller (12) is connected with the output of two pressure transducers (2A, 2B), and output terminal is connected with gas-filled pump (6A, 6B).
2. initiatively pneumatic spring in parallel of one according to claim 1 half, is characterized in that:
Only comprise a gas-filled pump (6), be connected with epicoele air valve (1), cavity of resorption air valve (9) by epicoele tracheae (10A), cavity of resorption tracheae (10B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892254.XU CN203627631U (en) | 2013-12-31 | 2013-12-31 | Semi-active parallel air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892254.XU CN203627631U (en) | 2013-12-31 | 2013-12-31 | Semi-active parallel air spring |
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| Publication Number | Publication Date |
|---|---|
| CN203627631U true CN203627631U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320892254.XU Expired - Fee Related CN203627631U (en) | 2013-12-31 | 2013-12-31 | Semi-active parallel air spring |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644235A (en) * | 2013-12-31 | 2014-03-19 | 吉林大学 | Semi-active parallel air spring |
| CN105033634A (en) * | 2015-07-30 | 2015-11-11 | 苏州宏瑞达新能源装备有限公司 | Loss prevention frame pressing machine with corner pressing assemblies |
| CN105065544A (en) * | 2015-07-17 | 2015-11-18 | 合肥工业大学 | Dual air spring with shared additional air chamber and control method and application of dual air spring |
| CN105673759A (en) * | 2016-04-14 | 2016-06-15 | 吉林大学 | Air spring capable of adjusting height and rigidity independently and control methods thereof |
| CN111350899A (en) * | 2020-01-20 | 2020-06-30 | 杭州萧山金鹰交通设施有限公司 | Pipeline shock absorber support |
| CN116075653A (en) * | 2022-11-11 | 2023-05-05 | 山东美晨工业集团有限公司 | Rigidity-adjustable air spring and vehicle air suspension system |
-
2013
- 2013-12-31 CN CN201320892254.XU patent/CN203627631U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644235A (en) * | 2013-12-31 | 2014-03-19 | 吉林大学 | Semi-active parallel air spring |
| CN105065544A (en) * | 2015-07-17 | 2015-11-18 | 合肥工业大学 | Dual air spring with shared additional air chamber and control method and application of dual air spring |
| CN105033634A (en) * | 2015-07-30 | 2015-11-11 | 苏州宏瑞达新能源装备有限公司 | Loss prevention frame pressing machine with corner pressing assemblies |
| CN105673759A (en) * | 2016-04-14 | 2016-06-15 | 吉林大学 | Air spring capable of adjusting height and rigidity independently and control methods thereof |
| CN111350899A (en) * | 2020-01-20 | 2020-06-30 | 杭州萧山金鹰交通设施有限公司 | Pipeline shock absorber support |
| CN111350899B (en) * | 2020-01-20 | 2021-07-30 | 杭州萧山金鹰交通设施有限公司 | Pipeline shock absorber support |
| CN116075653A (en) * | 2022-11-11 | 2023-05-05 | 山东美晨工业集团有限公司 | Rigidity-adjustable air spring and vehicle air suspension system |
| CN116075653B (en) * | 2022-11-11 | 2024-02-27 | 山东美晨工业集团有限公司 | Rigidity-adjustable air spring and vehicle air suspension system |
| WO2024098377A1 (en) * | 2022-11-11 | 2024-05-16 | 山东美晨工业集团有限公司 | Stiffness-adjustable air spring and vehicle air suspension system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |