CN112172438A - Air suspension control system and control method thereof - Google Patents
Air suspension control system and control method thereof Download PDFInfo
- Publication number
- CN112172438A CN112172438A CN202011084266.0A CN202011084266A CN112172438A CN 112172438 A CN112172438 A CN 112172438A CN 202011084266 A CN202011084266 A CN 202011084266A CN 112172438 A CN112172438 A CN 112172438A
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- China
- Prior art keywords
- air
- control valve
- height
- height control
- supply system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/048—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics with the regulating means inside the fluid springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The application discloses an air suspension control system, which comprises an air spring, an air supply system and a height control valve; the height control valve is used for detecting the relative height of the vehicle body and the chassis; the air spring and the height control valve are both communicated with an air supply system; when the height of the vehicle body relative to the chassis changes, the left end and the right end of the height control valve generate pressure difference, and the gas supply system supplies gas or releases gas into the control valve to reduce the pressure difference of 0 at the two ends of the height control valve. The invention further provides an air suspension control system. The invention replaces the traditional suspension spring structure with an air bag type spring, and adds a height control valve, an air supply system and other components to complete the replacement of the whole set of suspension spring. The relative height of the vehicle body and the chassis is fed back through the height control valve, input to the air supply system for operation, and then leveled to the middle of the spring, so as to achieve the purpose of calibrating the posture of the vehicle body. The suspension that can carry out adaptation automobile body height in good time according to the road conditions to provide outstanding driving comfort.
Description
Technical Field
The invention relates to the technical field of air suspensions, in particular to an air suspension control system and a control method thereof.
Background
With the annual promotion of automobile reserves in China, automobile culture is more and more deeply into the mind, wherein the important thing is automobile modification, and in the automobile modification, more and more people put forward higher requirements for driving comfort and controllability.
The existing air suspension control mode is as follows: in the process of refitting the vehicle, the original shock absorber or spring is replaced by a product with lower rigidity,
the main defects are as follows: the rigidity of the vehicle chassis can only be changed after the replacement, and the requirements of comfort and controllability brought forward by customers cannot be fundamentally met at positions such as turning, hollow road sections and the like.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and to provide a device.
The technical scheme adopted by the invention is as follows:
an air suspension control system comprises an air spring, an air supply system and a height control valve;
the height control valve is used for detecting the relative height of the vehicle body and the chassis;
the air spring and the height control valve are both communicated with an air supply system;
when the height of the vehicle body relative to the chassis changes, the left end and the right end of the height control valve generate pressure difference, and the gas supply system supplies gas or releases gas into the control valve to reduce the pressure difference of 0 at the two ends of the height control valve.
Preferably, the air suspension control system further comprises an air reservoir in communication with the air supply system, and the air reservoir is further in communication with the height control valve and atmosphere.
Preferably, the air suspension control system further comprises a compressor, the compressor being in communication with the air supply system and the air reservoir, respectively.
The invention also provides an air suspension control method, which adopts the air suspension control system and comprises the following steps:
s1, detecting the relative height of the vehicle body and the chassis by the height control valve;
s2, when the height control valve detects that the vehicle posture is high, the height control valve is opened, air flows reversely to the air storage tank, and the air storage tank exhausts to the atmosphere;
s3, when the height control valve detects that the posture of the vehicle is stable, the height control valve is closed, and the air supply system cannot charge air;
and S4, when the height control valve detects that the vehicle posture is low, the height control valve is opened, and the air supply system supplies air to the air spring.
Preferably, the method further comprises the following steps: when the gas in the gas storage tank is insufficient and the posture of the air spring needs to be adjusted, the compressor directly pumps gas into the air spring.
Preferably, the method further comprises the following steps: when the gas in the gas storage tank is insufficient, the air spring does not need to adjust the posture, and the compressor pumps gas to the gas storage tank.
Preferably, the method further comprises the following steps: when the air in the air storage tank is sufficient and the air spring needs to adjust the posture, the air storage tank pumps air.
The invention has the beneficial effects that: replace traditional suspension spring structure for air bag formula spring, increase the change of high control valve, parts such as air supply system accomplish whole set of suspension spring. The relative height of the vehicle body and the chassis is fed back through the height control valve, input to the air supply system for operation, and then leveled to the middle of the spring, so as to achieve the purpose of calibrating the posture of the vehicle body. The suspension that can carry out adaptation automobile body height in good time according to the road conditions to provide outstanding driving comfort.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
Drawings
Fig. 1 is a control flow block diagram of an air suspension control system according to the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the following description, the appearances of the indicating orientation or positional relationship such as the terms "inner", "outer", "upper", "lower", "left", "right", etc. are only for convenience in describing the embodiments and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
As shown in fig. 1, the present invention provides an air suspension control system, which includes an air spring, an air supply system, and a height control valve;
the height control valve is used for detecting the relative height of the vehicle body and the chassis;
the air spring and the height control valve are both communicated with an air supply system;
when the height of the vehicle body relative to the chassis changes, the left end and the right end of the height control valve generate pressure difference, and the gas supply system supplies gas or releases gas into the control valve to reduce the pressure difference of 0 at the two ends of the height control valve.
In this embodiment, the air suspension control system further comprises an air reservoir in communication with the air supply system, and the air reservoir is further in communication with the height control valve and the atmosphere.
In this embodiment, the air suspension control system further comprises a compressor, and the compressor is respectively communicated with the air supply system and the air storage tank.
The invention also provides an air suspension control method, which adopts the air suspension control system and comprises the following steps:
s1, detecting the relative height of the vehicle body and the chassis by the height control valve;
s2, when the height control valve detects that the vehicle posture is high, the height control valve is opened, air flows reversely to the air storage tank, and the air storage tank exhausts to the atmosphere;
s3, when the height control valve detects that the posture of the vehicle is stable, the height control valve is closed, and the air supply system cannot charge air;
and S4, when the height control valve detects that the vehicle posture is low, the height control valve is opened, and the air supply system supplies air to the air spring.
In this embodiment, the method further includes: when the gas in the gas storage tank is insufficient and the posture of the air spring needs to be adjusted, the compressor directly pumps gas into the air spring.
In this embodiment, the method further includes: when the gas in the gas storage tank is insufficient, the air spring does not need to adjust the posture, and the compressor pumps gas to the gas storage tank.
In this embodiment, the method further includes: when the air in the air storage tank is sufficient and the air spring needs to adjust the posture, the air storage tank pumps air.
It is understood that the air suspension control method further includes repeating the air suspension control method when a vehicle condition such as a pothole is encountered during steering.
The air suspension control system is adopted to control the air suspension, the traditional suspension spring structure is replaced by an air bag type spring, and a height control valve, an air supply system and other parts are added to complete the replacement of the whole set of suspension spring. The relative height of the vehicle body and the chassis is fed back through the height control valve, input to the air supply system for operation, and then leveled to the middle of the spring, so as to achieve the purpose of calibrating the posture of the vehicle body. The suspension that can carry out adaptation automobile body height in good time according to the road conditions to provide outstanding driving comfort.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (7)
1. An air suspension control system is characterized by comprising an air spring, an air supply system and a height control valve;
the height control valve is used for detecting the relative height of the vehicle body and the chassis;
the air spring and the height control valve are both communicated with an air supply system;
when the height of the vehicle body relative to the chassis changes, the left end and the right end of the height control valve generate pressure difference, and the gas supply system supplies gas or releases gas into the control valve to reduce the pressure difference of 0 at the two ends of the height control valve.
2. The air suspension control system as claimed in claim 1 further comprising an air reservoir in communication with the air supply system, and further in communication with the height control valve and atmosphere.
3. The air suspension control system as claimed in claim 2, further comprising a compressor in communication with the air supply system and the air reservoir, respectively.
4. An air suspension control method using the air suspension control system according to claim 3, characterized by comprising the steps of:
s1, detecting the relative height of the vehicle body and the chassis by the height control valve;
s2, when the height control valve detects that the vehicle posture is high, the height control valve is opened, air flows reversely to the air storage tank, and the air storage tank exhausts to the atmosphere;
s3, when the height control valve detects that the posture of the vehicle is stable, the height control valve is closed, and the air supply system cannot charge air;
and S4, when the height control valve detects that the vehicle posture is low, the height control valve is opened, and the air supply system supplies air to the air spring.
5. The air suspension control method according to claim 4, further comprising: when the gas in the gas storage tank is insufficient and the posture of the air spring needs to be adjusted, the compressor directly pumps gas into the air spring.
6. The air suspension control system of claim 4, further comprising: when the gas in the gas storage tank is insufficient, the air spring does not need to adjust the posture, and the compressor pumps gas to the gas storage tank.
7. The air suspension control system of claim 1, further comprising: when the air in the air storage tank is sufficient and the air spring needs to adjust the posture, the air storage tank pumps air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011084266.0A CN112172438A (en) | 2020-10-12 | 2020-10-12 | Air suspension control system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011084266.0A CN112172438A (en) | 2020-10-12 | 2020-10-12 | Air suspension control system and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112172438A true CN112172438A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011084266.0A Pending CN112172438A (en) | 2020-10-12 | 2020-10-12 | Air suspension control system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113696691A (en) * | 2021-08-23 | 2021-11-26 | 岚图汽车科技有限公司 | Air suspension system and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3064995A (en) * | 1958-05-24 | 1962-11-20 | Daimler Benz Ag | Pneumatic spring system especially for motor vehicles |
| CN1572551A (en) * | 2003-06-05 | 2005-02-02 | 五十铃自动车株式会社 | Vehicle height adjustment system |
| CN1839058A (en) * | 2003-08-21 | 2006-09-27 | 斯堪尼亚有限公司 | Arrangement in a vehicle with air suspension |
| CN101700732A (en) * | 2009-11-03 | 2010-05-05 | 西格玛集团有限公司 | Self-adjusting air suspension system |
| CN110884315A (en) * | 2019-10-28 | 2020-03-17 | 科曼车辆部件***(苏州)有限公司 | Intelligent electric control air suspension system for commercial automobile |
-
2020
- 2020-10-12 CN CN202011084266.0A patent/CN112172438A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3064995A (en) * | 1958-05-24 | 1962-11-20 | Daimler Benz Ag | Pneumatic spring system especially for motor vehicles |
| CN1572551A (en) * | 2003-06-05 | 2005-02-02 | 五十铃自动车株式会社 | Vehicle height adjustment system |
| CN1839058A (en) * | 2003-08-21 | 2006-09-27 | 斯堪尼亚有限公司 | Arrangement in a vehicle with air suspension |
| CN101700732A (en) * | 2009-11-03 | 2010-05-05 | 西格玛集团有限公司 | Self-adjusting air suspension system |
| CN110884315A (en) * | 2019-10-28 | 2020-03-17 | 科曼车辆部件***(苏州)有限公司 | Intelligent electric control air suspension system for commercial automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113696691A (en) * | 2021-08-23 | 2021-11-26 | 岚图汽车科技有限公司 | Air suspension system and vehicle |
| CN113696691B (en) * | 2021-08-23 | 2024-01-09 | 岚图汽车科技有限公司 | Air suspension system and vehicle |
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Application publication date: 20210105 |
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