CN105465260A - In-interconnection adjustable-volume transverse interconnection air springs and control method - Google Patents
In-interconnection adjustable-volume transverse interconnection air springs and control method Download PDFInfo
- Publication number
- CN105465260A CN105465260A CN201511000710.5A CN201511000710A CN105465260A CN 105465260 A CN105465260 A CN 105465260A CN 201511000710 A CN201511000710 A CN 201511000710A CN 105465260 A CN105465260 A CN 105465260A
- Authority
- CN
- China
- Prior art keywords
- interconnection
- air chamber
- solenoid valve
- air
- interconnected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001133 acceleration Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000011217 control strategy Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
本发明公开一种车辆空气悬架系统中参与互联的容积可调的横向互联空气弹簧及其控制方法，结构对称的左右两个空气弹簧的内腔均被分为内气室和外气室，同一内腔中的内气室容积小于外气室容积，左右两个内气室之间、外气室之间以及内外气室之间分别通过管路互联，在每个管路中间设有电磁阀，在驻车工况时，左右两个空气弹簧的四个气室均互联；在转弯工况时，左右两个空气弹簧处于非互联状态；在低速行驶工况时，左右两个空气弹簧的全部容积参与互联；在中速行驶工况时，左右两个空气弹簧的大部分容积参与互联；在高速行驶工况时，左右两个空气弹簧的小部分容积参与互联；无需附加驱动电机，仅通过切换两个互联电磁阀的开闭即可调节气室容积。
The invention discloses a volume-adjustable horizontally interconnected air spring participating in the interconnection in a vehicle air suspension system and a control method thereof. The inner cavities of the left and right air springs with symmetrical structures are divided into an inner air chamber and an outer air chamber. The volume of the inner air chamber in the same inner cavity is smaller than that of the outer air chamber, and the left and right inner air chambers, the outer air chambers, and the inner and outer air chambers are interconnected through pipelines, and an electromagnetic valve is installed in the middle of each pipeline. Valve, in the parking condition, the four air chambers of the left and right air springs are interconnected; in the turning condition, the left and right air springs are in a non-connected state; The entire volume of the two air springs participates in the interconnection; when driving at a medium speed, most of the volumes of the left and right air springs participate in the interconnection; when driving at high speeds, a small part of the volume of the left and right air springs participates in the interconnection; no additional drive motor is required, The volume of the air chamber can be adjusted only by switching the opening and closing of two interconnected solenoid valves.
Description
技术领域 technical field
本发明涉及车辆的空气悬架系统，具体涉及具有横向互联结构的空气悬架系统。 The invention relates to an air suspension system of a vehicle, in particular to an air suspension system with a transverse interconnection structure.
背景技术 Background technique
随汽车工业的发展，现代悬架控制技术不仅仅满足于对悬架垂向刚度和阻尼的控制，还尝试不影响垂向刚度的前提下独立改变悬架的侧倾刚度，从而实现主动侧倾控制，进一步缓解车辆操纵稳定性与乘坐舒适性的矛盾。 With the development of the automobile industry, modern suspension control technology is not only satisfied with the control of suspension vertical stiffness and damping, but also tries to independently change the roll stiffness of the suspension without affecting the vertical stiffness, so as to realize active roll control to further ease the contradiction between vehicle handling stability and ride comfort.
悬架的侧倾刚度有两个主要来源，一是横向稳定杆，二是悬架的弹性元件。目前，侧倾刚度控制主要通过主动横向稳定杆来实现，而主动横向稳定杆技术需要附加驱动电机，会在较大幅度上增加系统复杂程度和生产成本。 The roll stiffness of the suspension has two main sources, one is the anti-roll bar, and the other is the elastic element of the suspension. At present, the roll stiffness control is mainly realized through the active stabilizer bar, and the active stabilizer bar technology requires an additional drive motor, which will greatly increase the complexity of the system and the production cost.
空气弹簧是空气悬架的弹性元件。空气悬架领域最新研究成果表明，改变空气弹簧的互联状态，可改变悬架侧倾刚度或俯仰刚度。其中纵向互联会降低车辆俯仰刚度，横向互联会降低车辆侧倾刚度，这为实现悬架侧倾刚度或俯仰刚度控制提供了新的思路。中国专利申请号为201510665774.0、名称为“适用于纵向互联空气悬架的双气室空气弹簧”的专利文献中提出一种双气室空气弹簧，将空气弹簧分隔为内气室与外气室两个部分，将前后空气弹簧内气室用互联管路连接在一起但保持空气弹簧外气室相互独立，这种部分互联的结构，使空气悬架俯仰刚度介于完全互联和完全不互联之间，然而此结构中，参与互联的气室容积不可改变，俯仰刚度也不可调节。 Air springs are elastic elements of air suspension. The latest research results in the field of air suspension show that changing the interconnection state of the air spring can change the roll stiffness or pitch stiffness of the suspension. Among them, the longitudinal interconnection will reduce the vehicle pitch stiffness, and the transverse interconnection will reduce the vehicle roll stiffness, which provides a new idea for realizing the suspension roll stiffness or pitch stiffness control. The Chinese patent application number is 201510665774.0, and the patent document titled "Double-chamber air spring suitable for longitudinally interconnected air suspension" proposes a dual-chamber air spring, which divides the air spring into two parts: an inner air chamber and an outer air chamber. Two parts, the front and rear air spring inner air chambers are connected together with interconnection pipes but the air spring outer air chambers are kept independent of each other. This partially interconnected structure makes the pitching stiffness of the air suspension between fully interconnected and completely non-interconnected. , however, in this structure, the volume of the air chambers participating in the interconnection cannot be changed, and the pitch stiffness cannot be adjusted.
发明内容 Contents of the invention
针对上述现有技术的不足，本发明针对中国专利申请号为201510665774.0、名称为“适用于纵向互联空气悬架的双气室空气弹簧”的专利文献中所涉及的双气室空气弹簧结构进行改造，形成参与互联的气室容积可调的横向互联空气弹簧结构，并提供了相应的控制方法，适用于横向互联空气悬架（左悬架的空气弹簧与右悬架的空气弹簧连接），可合理控制并可调节悬架的侧倾刚度。 Aiming at the deficiencies of the above-mentioned prior art, the present invention aims at transforming the structure of the double-chamber air spring involved in the patent document with the Chinese patent application number 201510665774.0 titled "Double-chamber air spring suitable for longitudinally interconnected air suspension" , forming a horizontally interconnected air spring structure with adjustable air chamber volume participating in the interconnection, and providing a corresponding control method, which is suitable for laterally interconnected air suspensions (the air springs of the left suspension are connected with the air springs of the right suspension), and can be Reasonably controlled and adjustable suspension roll stiffness.
本发明一种参与互联的容积可调的横向互联空气弹簧采用的技术方案是：包含结构对称的左右两个空气弹簧，左右两个空气弹簧的内腔均被分为内气室和外气室，且左右两个内气室之间通过内气室互联管路互联，在内气室互联管路中间设置内气室互联电磁阀，同一内腔中的内气室的容积小于外气室的容积，左右两个外气室之间通过外气室互联管路互联，在外气室互联管路中间设置外气室互联电磁阀，外气室互联管路和内气室互联管路之间连接一个内外互联管路，在内外互联管路中间设有内外互联电磁阀；所述内气室互联管路、外气室互联电磁阀、内外互联电磁阀均经驱动电路连接控制系统，控制系统分别通过信号线连接加速度传感器和转向盘转角传感器。 The technical scheme adopted by the volume-adjustable horizontally interconnected air spring participating in the interconnection of the present invention is: it includes two left and right air springs with symmetrical structures, and the inner cavities of the left and right air springs are divided into inner air chambers and outer air chambers , and the left and right inner air chambers are interconnected through the inner air chamber interconnection pipeline, and the inner air chamber interconnection solenoid valve is set in the middle of the inner air chamber interconnection pipeline, the volume of the inner air chamber in the same inner cavity is smaller than that of the outer air chamber Volume, the left and right external air chambers are interconnected through the external air chamber interconnection pipeline, and the outer air chamber interconnection solenoid valve is set in the middle of the outer air chamber interconnection pipeline, and the outer air chamber interconnection pipeline and the inner air chamber interconnection pipeline are connected An internal and external interconnection pipeline, and an internal and external interconnection solenoid valve is arranged in the middle of the internal and external interconnection pipeline; the internal air chamber interconnection pipeline, the external air chamber interconnection solenoid valve, and the internal and external interconnection solenoid valve are all connected to the control system through the drive circuit, and the control systems are respectively Connect the acceleration sensor and the steering wheel angle sensor through the signal line.
所述横向互联空气弹簧的控制方法采用的技术方案是：确定一个转向盘转角阈值φ 1 和两个车速阈值v 1 和v 2 ，且v 1 <v 2 ，若当前转向盘转角φ t <φ 1 时，则当前处于非转弯工况，反之当前处于转弯工况；若当前车速v t <v 1 时，则当前处于低速行驶工况；若v t >v 2 时，则当前处于高速行驶工况；若v 1 <v t <v 2 ，则认为当前处于中速行驶工况；利用车速传感器和转向盘转角传感器实时采集当前车速v t 和当前转向盘转角φ t 信号并提供给控制系统，控制系统根据当前车速v t 和当前转向盘转角φ t 信号判断当前行驶工况；在驻车工况时，左右两个空气弹簧的四个气室均互联；在转弯工况时，左右两个空气弹簧处于非互联状态；在低速行驶工况时，左右两个空气弹簧的全部容积参与互联；在中速行驶工况时，左右两个空气弹簧的大部分容积参与互联；在高速行驶工况时，左右两个空气弹簧的小部分容积参与互联。 The technical solution adopted in the control method of the horizontally interconnected air spring is: determine a steering wheel angle threshold φ 1 and two vehicle speed thresholds v 1 and v 2 , and v 1 < v 2 , if the current steering wheel angle φ t < φ 1 , it is currently in a non-turning working condition, otherwise it is currently in a turning working condition; if the current vehicle speed v t < v 1 , it is currently in a low-speed driving condition; if v t > v 2 , it is currently in a high-speed driving condition condition; if v 1 < v t < v 2 , it is considered to be in a medium-speed driving condition; use the vehicle speed sensor and steering wheel angle sensor to collect the current vehicle speed v t and current steering wheel angle φ t signals in real time and provide them to the control system, The control system judges the current driving condition according to the current vehicle speed v t and the current steering wheel angle φ t signal; in the parking condition, the four air chambers of the left and right air springs are interconnected; in the turning condition, the left and right two air springs The air springs are in a non-interconnected state; in low-speed driving conditions, the entire volume of the left and right air springs participates in the interconnection; in medium-speed driving conditions, most of the volumes of the left and right air springs participate in the interconnection; in high-speed driving conditions At this time, a small part of the volume of the left and right air springs participates in the interconnection.
本发明的有益效果是：将左右两空气弹簧的两个内气室、两个外气室用设有电磁阀的互联管路分别连接，则无需附加驱动电机，仅通过切换两个互联电磁阀的开闭，即可调节参与互联的气室容积；利用本发明提供的控制方法，可合理改变悬架侧倾刚度，有效缓解行驶平顺性与操纵稳定性的矛盾。相比于现有需要附加驱动电机的主动横向稳定杆技术，本发明所涉及的结构与控制方法，具有成本低、鲁棒性高、结构紧凑的优点。 The beneficial effects of the present invention are: the two inner air chambers and the two outer air chambers of the left and right air springs are respectively connected with interconnection pipelines provided with solenoid valves, so that no additional driving motor is needed, and only by switching two interconnection solenoid valves The opening and closing of the suspension can adjust the volume of the air chambers participating in the interconnection; the control method provided by the invention can reasonably change the roll stiffness of the suspension, and effectively alleviate the contradiction between ride comfort and handling stability. Compared with the existing active stabilizer bar technology that requires an additional drive motor, the structure and control method involved in the present invention have the advantages of low cost, high robustness and compact structure.
附图说明 Description of drawings
图1为本发明所涉及的参与互联的容积可调的横向互联空气弹簧结构示意图； Fig. 1 is a schematic structural diagram of volume-adjustable horizontally interconnected air springs participating in the interconnection involved in the present invention;
图2为图1所示横向互联空气弹簧的控制方法流程图。 FIG. 2 is a flow chart of a control method for the horizontally interconnected air spring shown in FIG. 1 .
图中：1-a、1-b.上盖板；2-a、2-b.内气室互联气嘴；3-a、3-b.外气室互联气嘴；4-a、4-b.活塞套；5-a、5-b.外气室囊皮；6-a、6-b.内气室囊皮；7-a、7-b.活塞；8-a、8-b.下盖板；9-a、9-b.充放气气嘴；10.外气室互联管路；11.外气室互联电磁阀；12.内气室互联管路；13.内气室互联电磁阀；14.内—外互联管路；15.内—外互联电磁阀；16.加速度传感器；17.转向盘转角传感器；18.控制系统；19.驱动电路。 In the figure: 1-a, 1-b. Upper cover plate; 2-a, 2-b. Interconnecting air nozzles of inner air chambers; 3-a, 3-b. Interconnecting air nozzles of outer air chambers; 4-a, 4 -b. Piston sleeve; 5-a, 5-b. Outer air chamber skin; 6-a, 6-b. Inner air chamber skin; 7-a, 7-b. Piston; 8-a, 8- b. Lower cover plate; 9-a, 9-b. Inflatable and deflated gas nozzle; 10. External air chamber interconnection pipeline; 11. External air chamber interconnection solenoid valve; 12. Inner air chamber interconnection pipeline; 13. Inner air chamber interconnection pipeline Air chamber interconnection solenoid valve; 14. Inner-outer interconnection pipeline; 15. Inner-outer interconnection solenoid valve; 16. Acceleration sensor; 17. Steering wheel angle sensor; 18. Control system; 19. Drive circuit.
具体实施方式 detailed description
如图1所示，本发明所涉及的横向互联空气弹簧结构应用于横向互联空气悬架，横向互联的左右两个空气弹簧左右对称布置。两个空气弹簧结构对称，以左侧的空气弹簧为例，其上盖板1-a、内气室互联气嘴2-a、活塞套4-a、外气室囊皮5-a、内气室囊皮6-a、活塞7-a、下盖板8-a、充放气气嘴9-a以及内气室互联管路12均为中国专利申请号为201510665774.0、名称为“适用于纵向互联空气悬架的双气室空气弹簧”的文献中已提出的结构，这一结构将左侧的空气弹簧内腔分割为内气室A1和外气室B1。同样地，对于右侧的空气弹簧，包括上盖板1-b、内气室互联气嘴2-b、活塞套4-b、外气室囊皮5-b、内气室囊皮6-b、活塞7-b、下盖板8-b以及充放气气嘴9-b，右侧的空气弹簧内腔被分割为内气室A2和外气室B2。内气室互联管路12的两端分别连接内气室互联气嘴2-a和内气室互联气嘴2-b，将内气室A1和内气室A2互联。 As shown in FIG. 1 , the horizontally interconnected air spring structure of the present invention is applied to a horizontally interconnected air suspension, and the left and right air springs connected horizontally are symmetrically arranged. The structure of the two air springs is symmetrical. Taking the air spring on the left as an example, the upper cover plate 1-a, the inner air chamber interconnecting air nozzle 2-a, the piston sleeve 4-a, the outer air chamber skin 5-a, the inner air chamber The air chamber bag skin 6-a, the piston 7-a, the lower cover plate 8-a, the inflation and deflation nozzle 9-a, and the inner air chamber interconnection pipeline 12 are all Chinese patent application No. 201510665774.0, named "suitable for The structure proposed in the document "Double-chamber air spring of longitudinally interconnected air suspension", this structure divides the inner chamber of the air spring on the left side into the inner air chamber A1 and the outer air chamber B1. Similarly, for the air spring on the right side, it includes the upper cover plate 1-b, the interconnected air nozzle 2-b of the inner air chamber, the piston sleeve 4-b, the outer air chamber skin 5-b, and the inner air chamber skin 6- b. The piston 7-b, the lower cover plate 8-b, and the air filling and deflation nozzle 9-b. The inner chamber of the air spring on the right side is divided into an inner air chamber A2 and an outer air chamber B2. Both ends of the internal air chamber interconnection pipeline 12 are respectively connected to the inner air chamber interconnection nozzle 2-a and the inner air chamber interconnection nozzle 2-b, interconnecting the inner air chamber A1 and the inner air chamber A2.
对于本发明横向互联空气弹簧，需保证同一空气弹簧的内腔中的内气室的容积小于外气室的容积，即内气室A1容积小于外气室B1容积，内气室A2容积小于外气室B2容积。在此基础上，本发明在左右两空气弹簧的外气室B1、B2上各添加了外气室互联气嘴，即分别在上盖板1-a上设置连通外气室B1的外气室互联气嘴3-a，在上盖板1-b上设置连通外气室B2的外气室互联气嘴3-b，并用外气室互联管路10连接两外气室互联气嘴，使外气室互联管路10的两端分别连接于外气室互联气嘴3-a和外气室互联气嘴3-b上。在外气室互联管路10中间设置有外气室互联电磁阀11，在内气室互联管路12中间设置有内气室互联电磁阀13。此外，还在外气室互联管路10以及内气室互联管路12之间连接一个内外互联管路14。在内外互联管路14中间设有内外互联电磁阀15。 For the horizontally interconnected air spring of the present invention, it is necessary to ensure that the volume of the inner air chamber in the inner chamber of the same air spring is smaller than the volume of the outer air chamber, that is, the volume of the inner air chamber A1 is smaller than the volume of the outer air chamber B1, and the volume of the inner air chamber A2 is smaller than that of the outer air chamber Air chamber B2 volume. On this basis, the present invention adds external air chamber interconnection air nozzles on the external air chambers B1 and B2 of the left and right air springs, that is, the external air chambers connected to the external air chamber B1 are respectively arranged on the upper cover plate 1-a The interconnected air nozzle 3-a is provided on the upper cover plate 1-b with the external air chamber interconnected air nozzle 3-b connected to the external air chamber B2, and the external air chamber interconnected pipeline 10 is used to connect the two external air chamber interconnected air nozzles, so that Both ends of the external air chamber interconnection pipeline 10 are respectively connected to the external air chamber interconnection nozzle 3-a and the external air chamber interconnection nozzle 3-b. An external air chamber interconnection solenoid valve 11 is arranged in the middle of the outer air chamber interconnection pipeline 10 , and an inner air chamber interconnection solenoid valve 13 is arranged in the middle of the inner air chamber interconnection pipeline 12 . In addition, an internal and external interconnecting pipeline 14 is also connected between the external air chamber interconnecting pipeline 10 and the internal air chamber interconnecting pipeline 12 . An internal and external interconnection solenoid valve 15 is arranged in the middle of the internal and external interconnection pipeline 14 .
为根据行驶工况合理控制互联电磁阀的开闭，本发明利用加速度传感器16采集车辆车速信息，利用转向盘转角传感器17实施采集车辆转向盘转角信息，将加速度传感器16和转向盘转角传感器17分别通过信号线连接于控制系统18，将采集到的信息提供给控制系统18用以判断当前行驶工况，做出控制决策。控制系统18还通过驱动电路19连接不同的互联电磁阀，在控制决策确定后，控制系统18以控制信号的行驶将控制决策传递给驱动电路19。驱动电路19分别连接外气室互联电磁阀11、内气室互联电磁阀13和内外互联电磁阀15的线圈，可控制这三个互联电磁阀的开闭。 In order to reasonably control the opening and closing of the interconnected electromagnetic valve according to the driving conditions, the present invention utilizes the acceleration sensor 16 to collect the vehicle speed information, and utilizes the steering wheel angle sensor 17 to implement collecting the vehicle steering wheel angle information, and the acceleration sensor 16 and the steering wheel angle sensor 17 are respectively It is connected to the control system 18 through a signal line, and the collected information is provided to the control system 18 to judge the current driving condition and make a control decision. The control system 18 is also connected to different interconnected solenoid valves through the drive circuit 19 , and after the control decision is determined, the control system 18 transmits the control decision to the drive circuit 19 by means of a control signal. The drive circuit 19 is respectively connected to the coils of the outer air chamber interconnection solenoid valve 11 , the inner air chamber interconnection solenoid valve 13 and the inner and outer interconnection solenoid valve 15 to control the opening and closing of these three interconnection solenoid valves.
若外气室互联电磁阀11为开启状态，则左右两空气弹簧的外气室B1、B2之间可发生气体交换；若内气室互联电磁阀13为开启状态，则左右两空气弹簧的内气室A1、A2之间可发生气体交换。可发生气体交换的气室即为参与互联的气室，参与互联的气室容积越大，侧倾刚度越小。 If the interconnected electromagnetic valve 11 of the outer air chamber is in the open state, gas exchange can occur between the outer air chambers B1 and B2 of the left and right air springs; Gas exchange can take place between the chambers A1, A2. The air chambers that can exchange gas are the air chambers that participate in the interconnection, and the larger the volume of the interconnected air chambers, the smaller the roll stiffness.
内外互联电磁阀15仅在外气室电磁阀11和内气室电磁阀13均为开启状态时才可能开启，此时左右空气弹簧的4个气室均可发生气体交换，可令4个气室的气压趋于一致，其作用在于：平衡各气室气压，避免由于内气室A1、A2与外气室B1、B2始终无法连通而导致两气室气压差不断积累，影响空气弹簧使用寿命。 The internal and external interconnection electromagnetic valve 15 can only be opened when the external air chamber electromagnetic valve 11 and the internal air chamber electromagnetic valve 13 are both open. At this time, the four air chambers of the left and right air springs can exchange gas, which can make the four air chambers The air pressure tends to be consistent, and its function is to balance the air pressure of each air chamber, avoiding the continuous accumulation of the air pressure difference between the two air chambers due to the inability to connect the inner air chambers A1, A2 and the outer air chambers B1, B2, and affecting the service life of the air spring.
由于左右空气弹簧互联可降低侧倾刚度，提升车辆行驶平顺性，降低高速转弯工况的操纵稳定性，因此本发明横向互联空气弹簧有如下控制需求：1、驻车工况时，为平衡各气室气压，需令左右两个空气弹簧的4个气室均互联，联通在一起；2、转弯工况时，为减小车身侧倾，需令侧倾刚度尽量高，降低车身侧倾，因此需令左右空气弹簧处于非互联状态；3、低速行驶工况时，可充分利用空气弹簧互联带来的行驶平顺性优势，需令空气弹簧全部容积参与互联。4、中速行驶工况时，可较充分的利用互联空气弹簧的优势，但要适度防止车辆的突然转向，需保有一定的侧倾刚度，因此宜令空气弹簧大部分容积参与互联。5、高速行驶工况时，此工况虽然为直线行驶，但一方面，高速行驶时一般意味着路面条件优良，对进一步提升行驶平顺性的需求不高，另一方面为预防车辆突然急转弯时由气动系统时滞带来侧翻风险，需保证较高的侧倾刚度，因此宜仅令空气弹簧小部分容积参与互联。根据控制需求，本发明所涉及的横向互联空气弹簧的控制包括制定控制策略阶段和实际行车阶段，具体如下： Since the interconnection of left and right air springs can reduce the roll stiffness, improve the ride comfort of the vehicle, and reduce the handling stability of high-speed turning conditions, the horizontal interconnection air springs of the present invention have the following control requirements: 1. During parking conditions, in order to balance each The air pressure of the air chamber needs to make the 4 air chambers of the left and right air springs interconnected and connected together; 2. In the turning condition, in order to reduce the body roll, the roll stiffness should be as high as possible to reduce the body roll. Therefore, it is necessary to keep the left and right air springs in a non-interconnected state; 3. In low-speed driving conditions, the advantages of ride comfort brought by the interconnection of air springs can be fully utilized, and the entire volume of the air springs must be connected. 4. When driving at a medium speed, the advantages of the interconnected air spring can be fully utilized, but to prevent the vehicle from turning suddenly, a certain roll stiffness must be maintained, so it is advisable to allow most of the volume of the air spring to participate in the interconnection. 5. In high-speed driving conditions, although this working condition is straight-line driving, on the one hand, high-speed driving generally means that the road conditions are good, and the demand for further improvement of driving comfort is not high; on the other hand, to prevent sudden sharp turns of the vehicle Sometimes the time lag of the pneumatic system brings the risk of rollover, and it is necessary to ensure a high roll stiffness, so it is advisable to only allow a small part of the volume of the air spring to participate in the interconnection. According to control requirements, the control of the horizontally interconnected air spring involved in the present invention includes the stage of formulating a control strategy and the stage of actual driving, as follows:
制定控制策略阶段。确定一个转向盘转角阈值φ 1 ，在当前转向盘转角φ t <φ 1 时，则认为当前处于非转弯工况，反之认为当前处于转弯工况。确定两个车速阈值v 1 和v 2 ，其中v 1 <v 2 ，v 1 称为“第一车速阈值”，v 2 称为“第二车速阈值”，从而把车速分为三段：若当前车速v t <v 1 时，则认为当前处于低速行驶状态；若v t >v 2 时，则认为当前处于高速行驶状态；若v 1 <v t <v 2 ，则认为当前处于中速行驶状态。 Develop control strategy phase. Determine a steering wheel angle threshold φ 1 , when the current steering wheel angle φ t < φ 1 , it is considered to be in a non-turning condition, otherwise it is considered to be in a turning condition. Determine two vehicle speed thresholds v 1 and v 2 , where v 1 < v 2 , v 1 is called the "first vehicle speed threshold", and v 2 is called the "second vehicle speed threshold", so that the vehicle speed is divided into three sections: if the current When the vehicle speed v t < v 1 , it is considered to be in a low-speed driving state; if v t > v 2 , it is considered to be in a high-speed driving state; if v 1 < v t < v 2 , it is considered to be in a medium-speed driving state .
实际行车阶段。如图2所示，在实际行车阶段包括以下控制步骤： actual driving stage. As shown in Figure 2, the actual driving phase includes the following control steps:
步骤1：利用车速传感器16和转向盘转角传感器17实时采集车速v t 和转向盘转角φ t 信号，并提供给控制系统18。 Step 1: Use the vehicle speed sensor 16 and the steering wheel angle sensor 17 to collect the vehicle speed v t and steering wheel angle φ t signals in real time, and provide them to the control system 18 .
步骤2：控制系统18根据当前车速v t 判断当前是否处于驻车工况。 Step 2: The control system 18 judges whether it is currently in a parking condition according to the current vehicle speed v t .
若当前车速v t =0，即处于驻车工况状态，则控制系统18向驱动电路19提供指令，控制驱动电路19同时打开外气室互联电磁阀11、内气室互联电磁阀13和内外互联电磁阀15，不再执行步骤3及后续步骤。此时，左右两侧的内气室A1、A2和左右两侧的外气室B1、B2这四个气室互联在一起，任意两个气室之间均可发生气体交换。若当前车速车速不为零，即v t ≠0，则执行步骤3。 If the current vehicle speed v t =0, that is, it is in the parking working condition, the control system 18 provides instructions to the drive circuit 19, and the drive circuit 19 is controlled to open the external air chamber interconnection solenoid valve 11, the inner air chamber interconnection solenoid valve 13 and the inner and outer air chamber interconnection solenoid valves. Interconnect the solenoid valve 15, no longer perform step 3 and subsequent steps. At this time, the four air chambers, the inner air chambers A1 and A2 on the left and right sides and the outer air chambers B1 and B2 on the left and right sides, are connected together, and gas exchange can occur between any two air chambers. If the current vehicle speed is not zero, that is, v t ≠0, then step 3 is performed.
步骤3：控制系统18根据当前转向盘转角φ t 判断当前是否处于转弯工况。 Step 3: The control system 18 judges whether it is currently in a turning condition according to the current steering wheel angle φ t .
若当前转向盘转角φ t >φ 1 ，判断当前处于转弯工况，则控制系统18控制驱动电路19同时关闭外气室互联电磁阀11、内气室互联电磁阀13和内外互联电磁阀15，不再执行步骤4及后续步骤。此时，内气室A1、A2和外气室B1、B2这四个气室均不互联，任意两个气室之间均无法发生气体交换。若当前转向盘转角φ t <φ 1 ，则执行步骤4。 If the current steering wheel angle φ t > φ 1 , it is judged that it is currently in a turning condition, then the control system 18 controls the drive circuit 19 to simultaneously close the external air chamber interconnection solenoid valve 11, the inner air chamber interconnection solenoid valve 13 and the internal and external interconnection solenoid valve 15, Do not perform step 4 and subsequent steps. At this time, the four air chambers of the inner air chambers A1 and A2 and the outer air chambers B1 and B2 are not interconnected, and no gas exchange can occur between any two air chambers. If the current steering wheel angle φ t < φ 1 , go to step 4.
步骤4：控制系统18根据当前车速v t 判断当前是否处于低速工况。 Step 4: The control system 18 judges whether it is currently in a low-speed working condition according to the current vehicle speed v t .
若当前车速v t <v 1 ，判断当前处于低速工况，则控制系统18控制驱动电路19打开外气室互联电磁阀11和内气室互联电磁阀13，但关闭内外互联电磁阀15，不再执行下步骤5。此时，左侧的内气室A1与右侧的内气室A2互联，左侧的外气室B1与右侧的外气室B2互联，但内外气室之间不互联。若当前车速v t >v 1 ，则执行步骤5。 If the current vehicle speed v t < v 1 , it is judged that it is currently in a low-speed working condition, then the control system 18 controls the drive circuit 19 to open the outer air chamber interconnection solenoid valve 11 and the inner air chamber interconnection solenoid valve 13, but close the inner and outer interconnection solenoid valve 15. Go to step 5 again. At this time, the inner air chamber A1 on the left is interconnected with the inner air chamber A2 on the right, the outer air chamber B1 on the left is interconnected with the outer air chamber B2 on the right, but the inner and outer air chambers are not interconnected. If the current vehicle speed v t > v 1 , go to step 5.
步骤5：控制系统18根据当前车速v t 判断当前处于中速工况还是高速工况。 Step 5: The control system 18 judges whether it is currently in a medium-speed working condition or a high-speed working condition according to the current vehicle speed v t .
若当前车速v t >v 2 ，判断当前处于高速行驶工况状态，则控制系统18控制驱动电路19打开内气室互联电磁阀13，关闭外气室互联电磁阀11和内外互联电磁阀15，此时，左侧的内气室A1与右侧的内气室A2互联，由于内气室容积小于外气室，故可确保空气弹簧仅有小部分容积参与互联；若当前车速v 1 <v t <v 2 ，则认为当前处于中速行驶工况状态，则控制系统18控制驱动电路19打开外气室互联电磁阀11，关闭内气室互联电磁阀13和内外互联电磁阀15，此时，左侧的外气室B1与右侧的外气室B2互联，由于外气室容积大于内气室，故可确保空气弹簧大部分容积参与互联。 If the current vehicle speed v t > v 2 , it is judged that it is currently in a state of high-speed driving, then the control system 18 controls the drive circuit 19 to open the inner air chamber interconnection solenoid valve 13, close the outer air chamber interconnection solenoid valve 11 and the inner and outer interconnection solenoid valve 15, At this time, the inner air chamber A1 on the left is interconnected with the inner air chamber A2 on the right. Since the volume of the inner air chamber is smaller than that of the outer air chamber, only a small part of the volume of the air spring participates in the interconnection; if the current vehicle speed v 1 < v t < v 2 , it is considered that the current driving condition is at a medium speed, and the control system 18 controls the driving circuit 19 to open the external air chamber interconnection solenoid valve 11, close the inner air chamber interconnection solenoid valve 13 and the internal and external interconnection solenoid valve 15, at this time , the outer air chamber B1 on the left is interconnected with the outer air chamber B2 on the right. Since the volume of the outer air chamber is larger than the inner air chamber, it can ensure that most of the volume of the air spring participates in the interconnection.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000710.5A CN105465260B (en) | 2015-12-29 | 2015-12-29 | The horizontal interconnection air spring and control method of a kind of adjustable volume for participating in interconnection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000710.5A CN105465260B (en) | 2015-12-29 | 2015-12-29 | The horizontal interconnection air spring and control method of a kind of adjustable volume for participating in interconnection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465260A true CN105465260A (en) | 2016-04-06 |
| CN105465260B CN105465260B (en) | 2018-02-27 |
Family
ID=55603283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511000710.5A Expired - Fee Related CN105465260B (en) | 2015-12-29 | 2015-12-29 | The horizontal interconnection air spring and control method of a kind of adjustable volume for participating in interconnection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465260B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218342A (en) * | 2016-08-22 | 2016-12-14 | 江苏大学 | A kind of interconnection type energy regenerative air suspension interconnecting adjustable volume and using method thereof |
| CN106314058A (en) * | 2016-08-22 | 2017-01-11 | 江苏大学 | Interconnection-type air suspension with adjustable interconnection capacity and use method thereof |
| CN107323198A (en) * | 2017-06-09 | 2017-11-07 | 江苏大学 | A kind of laterally interconnection air suspension interconnection state Fuzzy control system and method |
| CN113276614A (en) * | 2021-06-15 | 2021-08-20 | 合肥工业大学 | Multifunctional combined type active hydraulic interconnection suspension system |
| CN114263701A (en) * | 2020-09-16 | 2022-04-01 | 江西理工大学 | Vibration Isolation Feet, Vibration Isolation Systems, and Compression Devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002240530A (en) * | 2001-02-16 | 2002-08-28 | Tokico Ltd | Suspension device for vehicle |
| US6923434B2 (en) * | 2003-11-10 | 2005-08-02 | The Goodyear Tire & Rubber Company | Dual height airspring having adjusted spring rate |
| CN101074712A (en) * | 2007-05-09 | 2007-11-21 | 朱洪纲 | Air spring for compressing cryogen |
| CN102131661A (en) * | 2008-07-09 | 2011-07-20 | 火石工业产品有限责任公司 | Gas spring and gas damper assembly and method |
| US20120112424A1 (en) * | 2010-10-30 | 2012-05-10 | Cronquist Harold J | Roll enhancing snowmobile ski suspension for deeper snow riding |
| CN104786772A (en) * | 2015-04-16 | 2015-07-22 | 湖南工学院 | Interlinked air suspension control device, system and method |
-
2015
- 2015-12-29 CN CN201511000710.5A patent/CN105465260B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002240530A (en) * | 2001-02-16 | 2002-08-28 | Tokico Ltd | Suspension device for vehicle |
| US6923434B2 (en) * | 2003-11-10 | 2005-08-02 | The Goodyear Tire & Rubber Company | Dual height airspring having adjusted spring rate |
| CN101074712A (en) * | 2007-05-09 | 2007-11-21 | 朱洪纲 | Air spring for compressing cryogen |
| CN102131661A (en) * | 2008-07-09 | 2011-07-20 | 火石工业产品有限责任公司 | Gas spring and gas damper assembly and method |
| US20120112424A1 (en) * | 2010-10-30 | 2012-05-10 | Cronquist Harold J | Roll enhancing snowmobile ski suspension for deeper snow riding |
| CN104786772A (en) * | 2015-04-16 | 2015-07-22 | 湖南工学院 | Interlinked air suspension control device, system and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218342A (en) * | 2016-08-22 | 2016-12-14 | 江苏大学 | A kind of interconnection type energy regenerative air suspension interconnecting adjustable volume and using method thereof |
| CN106314058A (en) * | 2016-08-22 | 2017-01-11 | 江苏大学 | Interconnection-type air suspension with adjustable interconnection capacity and use method thereof |
| CN106314058B (en) * | 2016-08-22 | 2019-04-02 | 江苏大学 | A kind of interconnection type air suspension and its application method interconnecting adjustable volume |
| CN107323198A (en) * | 2017-06-09 | 2017-11-07 | 江苏大学 | A kind of laterally interconnection air suspension interconnection state Fuzzy control system and method |
| CN107323198B (en) * | 2017-06-09 | 2019-05-31 | 江苏大学 | It is a kind of laterally to interconnect air suspension interconnection state Fuzzy control system and method |
| CN114263701A (en) * | 2020-09-16 | 2022-04-01 | 江西理工大学 | Vibration Isolation Feet, Vibration Isolation Systems, and Compression Devices |
| CN113276614A (en) * | 2021-06-15 | 2021-08-20 | 合肥工业大学 | Multifunctional combined type active hydraulic interconnection suspension system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465260B (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105465260B (en) | The horizontal interconnection air spring and control method of a kind of adjustable volume for participating in interconnection | |
| CN104786772B (en) | A kind of interconnection type air suspension control device, control system and method thereof | |
| CN104999881B (en) | A kind of changeable Active control suspension of double mode | |
| CN105857007B (en) | A kind of combined type interconnection air suspension and its interconnection mode control method | |
| CN108839532B (en) | Interconnection state control method for four-corner interconnection air suspension | |
| CN104044429B (en) | Hydraulic interconnection ISD (Inerter-Spring-Damper) hanger bracket | |
| JP5106797B2 (en) | Semi-active roll prevention system | |
| CN106218342B (en) | A kind of the interconnection type energy regenerative air suspension and its application method of interconnection adjustable volume | |
| CN103930288A (en) | Suspension device for vehicle | |
| WO2007098559A1 (en) | Hydraulic system for a vehicle suspension | |
| CN217260056U (en) | A rail vehicle interconnected secondary suspension lateral vibration damping device | |
| CN106314058B (en) | A kind of interconnection type air suspension and its application method interconnecting adjustable volume | |
| CN109677227B (en) | Vehicle body posture adjusting system and method based on air spring | |
| CN108749506A (en) | A kind of interconnection type variable volume air suspension and its control method | |
| CN109501544B (en) | An air suspension and a vehicle on which the suspension is installed | |
| CN206812740U (en) | Anti-rolling suspension system | |
| CN205768453U (en) | A kind of automobile four-way two-layer air chamber interconnects air spring system | |
| CN206277915U (en) | Hydraulic interlock unit and suspension system, the vehicle using the unit | |
| CN112572087B (en) | Electromagnetic balanced vehicle hydraulic suspension system and control method thereof | |
| CN104691266B (en) | A Hydro-pneumatic Suspension Control System for Multi-Axle Vehicle Chassis | |
| CN109808425A (en) | It is a kind of damping and stiffness-adjustable tire | |
| CN109515104B (en) | Hub-driven electric automobile air suspension system with multiple layers of additional air chambers | |
| CN112238721B (en) | Vehicle, interconnection type vehicle suspension system and control method thereof | |
| CN103213469A (en) | Hydraulic supporting system-based breakable automobile stabilizer bar system | |
| CN105526297B (en) | A kind of adjustable interconnection air spring constructions of volumetric ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20181229 |