Closed drive-by-wire intelligent air suspension system

Abstract

The invention relates to the technical field of air suspensions, and particularly discloses a closed drive-by-wire intelligent air suspension system which comprises a wheel positioning system, a damping positioning arm is mounted at the top of one side of the wheel positioning system, and a damping connecting arm is mounted at the bottom of one side of the wheel positioning system. A damping assembly is installed at the top of the damping connecting arm, the damping positioning arm, the damping connecting arm and the damping assembly are all connected with the frame, the damping connecting arm is connected with the other side in a suspension mode, and the wheel positioning system is connected with the steering mechanism. When the air suspension system is maintained, only the air pressure in the air bag main body needs to be detected, whether sliding between the sliding sleeve and the positioning sliding rod is smooth or not is detected, and the abrasion condition of the transmission gear and the transmission teeth is detected, so that the maintenance cost of the air suspension system is low, and the maintenance efficiency is improved. And the device is more convenient to use widely.

Description

Technical Field

[0001] The present invention relates to the technical field of air suspension, and more particularly to a closed-type electronically controlled intelligent air suspension system. Background Art

[0002] An air suspension system is a suspension technology that uses compressed air to replace traditional steel springs, and is widely used in high-end passenger cars, commercial vehicles (such as buses, trucks), and special vehicles (such as motorhomes, ambulances). Its core advantage lies in its ability to dynamically adjust the body height, stiffness, and damping, improving comfort, handling, and load adaptability.

[0003] There are some deficiencies in the use of existing air suspension systems, which are as follows:

[0004] When adjusting the body height, stiffness, and damping of existing air suspension systems, they achieve the adjustment purpose by filling or discharging some gas into the shock absorber airbag. Therefore, during the use of existing air suspension systems, gas is frequently filled into and discharged from the airbag. As a result, during the use process, the gas in the airbag will frequently exchange with the outside gas. For this reason, a filtering device is provided at the gas exchange port of the existing airbag to ensure that the gas filled into the airbag does not contain impurities such as moisture and dust. However, this also leads to the need to replace the filtering device during the maintenance of existing air suspension systems, increasing the usage cost of the air suspension system. Moreover, since the overall cost of the airbag device of the air suspension system is relatively high, it is not convenient for the air suspension system to be universally applicable to vehicles. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a closed-type electronically controlled intelligent air suspension system to solve the problems existing in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A closed-type electronically controlled intelligent air suspension system includes a wheel positioning system. At the top on one side of the wheel positioning system, a shock absorber positioning arm is installed. At the bottom on one side of the wheel positioning system, a shock absorber connecting arm is installed. At the top of the shock absorber connecting arm, a shock absorber assembly is installed. The shock absorber positioning arm, the shock absorber connecting arm, and the shock absorber assembly are all connected to the vehicle frame. The shock absorber connecting arm is connected to the other side suspension. The wheel positioning system is connected to the steering mechanism.

[0008] Further, the wheel alignment system includes a first brake disc, a connecting positioning plate is installed on one side of the first brake disc, a second brake disc is installed on one side of the connecting positioning plate, a brake disc positioning wheel is installed on the other side of the first brake disc, a connecting rod is installed on one side of the brake disc positioning wheel, a positioning disc is installed on one side of the connecting rod, a first L-shaped fixing plate is fixedly connected to the top of the positioning disc, a first positioning bolt assembly is installed on the top of the first L-shaped fixing plate, a second L-shaped fixing plate is fixedly connected to the bottom of the positioning disc, a second positioning bolt assembly is installed on the bottom of the second L-shaped fixing plate, a steering pull plate is fixedly connected to the front of the positioning disc, and a first positioning sleeve is fixedly connected to one side of the steering pull plate.

[0009] Further, the shock-absorbing positioning arm includes a first Y-shaped arm, a first positioning hole is opened at the top of the first Y-shaped arm, a positioning notch is fixedly connected to one side of the first Y-shaped arm, a rotating positioning rod is arranged inside the positioning notch, positioning notches are opened on the front and back sides of the outer side of the rotating positioning rod, and limiting circular plates are fixedly connected to the front and back sides of the rotating positioning rod.

[0010] Further, the shock-absorbing connecting arm includes a second Y-shaped arm, a second positioning hole is opened at the top of the second Y-shaped arm, a first U-shaped positioning ear is fixedly connected to the top of the second Y-shaped arm, a third positioning sleeve is fixedly connected to one side of the second Y-shaped arm, a positioning rod assembly is arranged inside the third positioning sleeve, and a connecting ear is fixedly connected to the top of the second Y-shaped arm.

[0011] Further, the shock-absorbing component includes a second U-shaped positioning ear, a first rotating block is installed inside the second U-shaped positioning ear, an adjusting component is fixedly connected to the bottom of the first rotating block, an airbag component is fixedly connected to the bottom of the adjusting component, and a second rotating block is fixedly connected to the bottom of the airbag component.

[0012] Further, the adjusting component includes a positioning column, a first connecting column is fixedly connected to the top of the positioning column, a positioning ring is fixedly connected to the outer side of the positioning column, a guide plate is fixedly connected to the outer side of the positioning ring, a guide rod is fixedly connected to the inside of the guide plate, a pushing circular plate is installed near the bottom of the outer side of the positioning column, an arc-shaped pushing groove is opened at the top of the pushing circular plate, a motor is fixedly connected to the outer side of the positioning column, a transmission gear is fixedly connected to the output shaft of the motor, a transmission arc-shaped groove is opened inside the pushing circular plate, and transmission teeth are fixedly connected to the outer side of the transmission arc-shaped groove.

[0013] Furthermore, the airbag assembly includes a sealing circular plate, a main airbag body is fixedly connected to the top of the sealing circular plate, an arc-shaped positioning plate is fixedly connected to the outside of the main airbag body, a second connecting column is fixedly connected to the outside of the arc-shaped positioning plate, a sliding sleeve is fixedly connected to the side of the second connecting column away from the arc-shaped positioning plate, a positioning slide rod is arranged inside the sliding sleeve, a circular baffle is fixedly connected to the bottom of the positioning slide rod, an L-shaped connecting plate is fixedly connected to the top of the circular baffle, a wire circular hole is formed in the outside of the L-shaped connecting plate, and a valve component is fixedly connected to the outside of the main airbag body.

[0014] Furthermore, the diameter of the first positioning hole matches the diameter of the first positioning bolt assembly, the diameter of the second positioning hole matches the diameter of the second positioning bolt assembly, and there is a clearance fit between the diameter of the rotating positioning rod at the position where the positioning notch is formed and the inner diameter of the second positioning sleeve.

[0015] Furthermore, positioning shafts are arranged on the front and back of the second rotating block, the second rotating block and the first U-shaped positioning ear are connected through the positioning shaft and the positioning bearing, the push circular plate and the positioning column are connected through a bearing, and the teeth on the outside of the transmission gear mesh with the transmission teeth.

[0016] Furthermore, the width inside the guide rod is the same as the width of the arc-shaped push groove, there is a clearance fit between the width of the guide rod and the diameter of the L-shaped connecting plate, there is a clearance fit between the diameter of the guide rod and the diameter of the wire circular hole, and there is a clearance fit between the inner diameter of the sliding sleeve and the diameter of the positioning slide rod.

[0017] The technical effects and advantages of the present invention:

[0018] 1. When the vehicle is in plug-in hybrid drive, pure electric drive, and fuel cell drive, during braking, driving, when the wheels encounter bumpy roads, and during vehicle braking, due to the inertia of vehicle driving, the wheel positioning system shakes, which then drives the first Y-shaped arm and the second Y-shaped arm to rotate along the rotating positioning rod and the positioning rod assembly. Subsequently, the first U-shaped positioning ear squeezes the second rotating block, and since the second U-shaped positioning ear is positioned on the vehicle frame, the distance between the second rotating block and the second U-shaped positioning ear is shortened, thereby compressing the airbag main body. The high-pressure gas inside the airbag main body will be further compressed, and then under the action of gas rebound, the airbag main body returns to its original position, causing the length of the airbag main body to shorten, effectively reducing the shaking of the vehicle when driving on bumpy roads, ensuring the smooth driving of the vehicle. During the shock absorption process of the airbag main body, the arc-shaped positioning plate, the second connecting column, and the sliding sleeve on the outer side of the airbag main body limit the diameter of the airbag main body, converting the bumpy force into the pressure of the gas inside the airbag main body, and the sliding sleeve slides on the outer side of the positioning slide rod during the compression of the airbag main body.

[0019] 2. When it is necessary to adjust the height, stiffness, and damping of the vehicle, the motor works to drive the transmission gear to rotate. Subsequently, under the cooperation between the outer teeth of the transmission gear and the transmission teeth, the pushing circular plate rotates along the positioning column. Then, the L-shaped connecting plate is pushed through the arc-shaped pushing groove on the pushing circular plate. With the positioning of the L-shaped connecting plate and the wire circular hole by the guide plate and the guide rod, the positioning slide rod spreads outward from the positioning column. Subsequently, under the pulling of the second connecting column, the sliding sleeve, and the arc-shaped positioning plate, the overall height of the airbag main body changes. Since the distance between two adjacent arc-shaped positioning plates increases, the diameter of the airbag main body increases, and the height of the airbag main body decreases, reducing the shock absorption performance of the airbag main body. At the same time, the overall height of the vehicle body decreases, reducing the air resistance suffered by the vehicle during driving. It can effectively adjust the height, stiffness, and damping of the vehicle, and there is no need for the gas inside the airbag main body to frequently enter and exit. There is no need to install a compressor and a filtering device on the outer side of the airbag main body, reducing the overall cost of the air suspension system, enabling it to be more widely applied to vehicles with plug-in hybrid drive, pure electric drive, and fuel cell drive.

[0020] 3. When performing maintenance and upkeep on the air suspension system, it is only necessary to detect the air pressure inside the airbag main body, detect whether the sliding between the sliding sleeve and the positioning slide rod is smooth, and detect the wear condition of the transmission gear and the transmission teeth, making the maintenance cost of the air suspension system relatively low, and it is more convenient to be widely used in vehicles with plug-in hybrid drive, pure electric drive, and fuel cell drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the overall structure of the present invention in another direction;

[0023] Figure 3 Schematic diagram of a partial structure of the present invention;

[0024] Figure 4 Schematic diagram of the wheel alignment system structure of the present invention;

[0025] Figure 5 Schematic diagram of the shock-absorbing positioning arm structure of the present invention;

[0026] Figure 6 Schematic diagram of the shock-absorbing connecting arm structure of the present invention;

[0027] Figure 7 Schematic diagram of the shock-absorbing component structure of the present invention;

[0028] Figure 8 Schematic diagram of the adjusting component structure of the present invention;

[0029] Figure 9 For the present invention Figure 8 Enlarged schematic diagram at position A;

[0030] Figure 10 Schematic diagram of the airbag component structure of the present invention.

[0031] Reference numerals are: 1, wheel alignment system; 101, first brake disc; 102, connecting positioning plate; 103, second brake disc; 104, brake disc positioning wheel; 105, connecting rod; 106, positioning disc; 107, first L-shaped fixing plate; 108, first positioning bolt assembly; 109, steering pull plate; 1010, first positioning sleeve; 1011, second L-shaped fixing plate; 1012, second positioning bolt assembly;

[0032] 2, shock-absorbing positioning arm; 201, first Y-shaped arm; 202, first positioning hole; 203, second positioning sleeve; 204, rotating positioning rod; 205, positioning notch; 206, limiting circular plate;

[0033] 3, shock-absorbing connecting arm; 301, second Y-shaped arm; 302, second positioning hole; 303, first U-shaped positioning ear; 304, third positioning sleeve; 305, positioning rod assembly; 306, connecting ear;

[0034] 4, shock-absorbing component; 401, second U-shaped positioning ear; 402, first rotating block;

[0035] 403. Adjusting assembly; 4031. Positioning column; 4032. First connecting column; 4033. Positioning ring; 4034. Guide plate; 4035. Guide rod; 4036. Pushing circular plate; 4037. Arc-shaped pushing groove; 4038. Transmission arc-shaped groove; 4039. Transmission teeth; 40310. Motor; 40311. Transmission gear;

[0036] 404. Airbag assembly; 4041. Sealing circular plate; 4042. Airbag main body; 4043. Arc-shaped positioning plate; 4044. Second connecting column; 4045. Sliding sleeve; 4046. Positioning slide bar; 4047. Circular baffle; 4048. L-shaped connecting plate; 4049. Wire round hole; 40410. Valve assembly;

[0037] 405. Second rotating block. Specific embodiments

[0038] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples, and the closed-type wire-controlled intelligent air suspension system involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0039] Referring to Figures 1 to 10 , the present invention provides a closed-type wire-controlled intelligent air suspension system, including a wheel positioning system 1. A shock absorption positioning arm 2 is installed at the top on one side of the wheel positioning system 1, and a shock absorption connecting arm 3 is installed at the bottom on one side of the wheel positioning system 1. A shock absorption assembly 4 is installed at the top of the shock absorption connecting arm 3. The shock absorption positioning arm 2, the shock absorption connecting arm 3, and the shock absorption assembly 4 are all connected to the vehicle frame. The shock absorption connecting arm 3 is connected to the other side suspension, and the wheel positioning system 1 is connected to the steering mechanism; when performing maintenance and servicing on the air suspension system, it is only necessary to detect the air pressure inside the airbag main body 4042, and detect whether the sliding between the sliding sleeve 4045 and the positioning slide bar 4046 is smooth, and detect the wear condition of the transmission gear 40311 and the transmission teeth 4039, so that the maintenance cost of the air suspension system is relatively low, and it is more convenient for wide use.

[0040] In a preferred embodiment, the wheel alignment system 1 includes a first brake disc 101. A connecting positioning plate 102 is installed on one side of the first brake disc 101. A second brake disc 103 is installed on one side of the connecting positioning plate 102. A brake disc positioning wheel 104 is installed on the other side of the first brake disc 101. A connecting rod 105 is installed on one side of the brake disc positioning wheel 104. A positioning disc 106 is installed on one side of the connecting rod 105. A first L-shaped fixing plate 107 is fixedly connected to the top of the positioning disc 106. A first positioning bolt assembly 108 is installed on the top of the first L-shaped fixing plate 107. A second L-shaped fixing plate 1011 is fixedly connected to the bottom of the positioning disc 106. A second positioning bolt assembly 1012 is installed on the bottom of the second L-shaped fixing plate 1011. A steering pull plate 109 is fixedly connected to the front of the positioning disc 106. A first positioning sleeve 1010 is fixedly connected to one side of the steering pull plate 109.

[0041] In a preferred embodiment, the shock-absorbing positioning arm 2 includes a first Y-shaped arm 201. A first positioning hole 202 is provided at the top of the first Y-shaped arm 201. A positioning notch 205 is fixedly connected to one side of the first Y-shaped arm 201. A rotating positioning rod 204 is arranged inside the positioning notch 205. Positioning notches 205 are provided on the front and back sides of the outer side of the rotating positioning rod 204. Limiting circular plates 206 are fixedly connected to the front and back sides of the rotating positioning rod 204.

[0042] In a preferred embodiment, the shock-absorbing connecting arm 3 includes a second Y-shaped arm 301. A second positioning hole 302 is provided at the top of the second Y-shaped arm 301. A first U-shaped positioning ear 303 is fixedly connected to the top of the second Y-shaped arm 301. A third positioning sleeve 304 is fixedly connected to one side of the second Y-shaped arm 301. A positioning rod assembly 305 is arranged inside the third positioning sleeve 304. A connecting ear 306 is fixedly connected to the top of the second Y-shaped arm 301.

[0043] In a preferred embodiment, the shock-absorbing component 4 includes a second U-shaped positioning ear 401. A first rotating block 402 is installed inside the second U-shaped positioning ear 401. An adjusting component 403 is fixedly connected to the bottom of the first rotating block 402. An airbag component 404 is fixedly connected to the bottom of the adjusting component 403. A second rotating block 405 is fixedly connected to the bottom of the airbag component 404.

[0044] In a preferred embodiment, the adjusting assembly 403 includes a positioning post 4031. A first connecting post 4032 is fixedly connected to the top of the positioning post 4031. A positioning ring 4033 is fixedly connected to the outside of the positioning post 4031. A guide plate 4034 is fixedly connected to the outside of the positioning ring 4033. A guide rod 4035 is fixedly connected to the inside of the guide plate 4034. A pushing circular plate 4036 is installed near the bottom on the outside of the positioning post 4031. An arc-shaped pushing groove 4037 is formed in the top of the pushing circular plate 4036. A motor 40310 is fixedly connected to the outside of the positioning post 4031. A transmission gear 40311 is fixedly connected to the output shaft of the motor 40310. A transmission arc-shaped groove 4038 is formed in the inside of the pushing circular plate 4036. Transmission teeth 4039 are fixedly connected to the outside of the transmission arc-shaped groove 4038. During the driving process of the vehicle, when the wheels encounter a bumpy road surface, the vehicle will shake, which causes the wheel positioning system 1 to shake up and down. Then, it drives the first Y-shaped arm 201 and the second Y-shaped arm 301 to rotate along the rotating positioning rod 204 and the positioning rod assembly 305. Then, the first U-shaped positioning ear 303 presses the second rotating block 405. Since the second U-shaped positioning ear 401 is positioned on the vehicle frame, the distance between the second rotating block 405 and the second U-shaped positioning ear 401 is shortened. As a result, the airbag main body 4042 is compressed. The high-pressure gas inside the airbag main body 4042 will be further compressed. Then, under the action of the gas rebound, the airbag main body 4042 returns to its original position, and the length of the airbag main body 4042 is shortened, effectively reducing the shake of the vehicle when driving on a bumpy road surface, ensuring the smooth driving of the vehicle. During the shock absorption process of the airbag main body 4042, the arc-shaped positioning plate 4043, the second connecting post 4044, and the sliding sleeve 4045 on the outside of the airbag main body 4042 limit the diameter of the airbag main body 4042, so that the bump force is converted into the pressure of the gas inside the airbag main body 4042. During the compression of the airbag main body 4042, the sliding sleeve 4045 slides on the outside of the positioning slide rod 4046.

[0045] In a preferred embodiment, the airbag assembly 404 includes a sealing circular plate 4041. A top of the sealing circular plate 4041 is fixedly connected to an airbag main body 4042. An outer side of the airbag main body 4042 is fixedly connected to an arc-shaped positioning plate 4043. An outer side of the arc-shaped positioning plate 4043 is fixedly connected to a second connecting column 4044. A side of the second connecting column 4044 away from the arc-shaped positioning plate 4043 is fixedly connected to a sliding sleeve 4045. A positioning slide rod 4046 is disposed inside the sliding sleeve 4045. A bottom of the positioning slide rod 4046 is fixedly connected to a circular baffle 4047. A top of the circular baffle 4047 is fixedly connected to an L-shaped connecting plate 4048. A wire circular hole 4049 is formed in an outer side of the L-shaped connecting plate 4048. An outer side of the airbag main body 4042 is fixedly connected to a valve component 40410; when it is necessary to adjust the height, stiffness and damping of the vehicle suspension system, the motor 40310 operates to drive the transmission gear 40311 to rotate. Then, under the cooperation between the outer teeth of the transmission gear 40311 and the transmission teeth 4039, the pushing circular plate 4036 moves along the positioning column 4031. Then, the L-shaped connecting plate 4048 is pushed by the arc-shaped pushing groove 4037 on the pushing circular plate 4036. And under the positioning of the guiding plate 4034 and the guiding rod 4035 on the L-shaped connecting plate 4048 and the wire circular hole 4049, the positioning slide rod 4046 spreads outwards from the positioning column 4031. Then, under the pulling of the second connecting column 4044, the sliding sleeve 4045 and the arc-shaped positioning plate 4043, the overall height of the airbag main body 4042 changes. And since the distance between two adjacent arc-shaped positioning plates 4043 increases, the diameter of the airbag main body 4042 increases, and the height of the airbag main body 4042 decreases, so that the shock absorption performance of the airbag main body 4042 decreases. At the same time, the overall height of the vehicle body decreases, so that the air resistance received by the vehicle during driving decreases. It can effectively adjust the height, stiffness and damping of the vehicle, and does not require the gas inside the airbag main body 4042 to enter and exit frequently. Therefore, a compressor and a filtering device do not need to be installed on the outer side of the airbag main body 4042, so that the overall cost of the air suspension system is reduced, and it can be more widely used.

[0046] In a preferred embodiment, the diameter of the first positioning hole 202 is matched with the diameter of the first positioning bolt assembly 108, the diameter of the second positioning hole 302 is matched with the diameter of the second positioning bolt assembly 1012, and the diameter of the rotating positioning rod 204 at the position where the positioning notch 205 is formed has a clearance fit with the inner diameter of the second positioning sleeve 203.

[0047] In a preferred embodiment, positioning shafts are provided on both the front and back surfaces of the second rotating block 405. The second rotating block 405 is connected to the first U-shaped positioning ear 303 through the positioning shaft and the positioning bearing. The pushing circular plate 4036 and the positioning column 4031 are connected through a bearing, and the teeth on the outside of the transmission gear 40311 mesh with the transmission teeth 4039.

[0048] In a preferred embodiment, the width inside the guide rod 4035 is the same as the width of the arc-shaped pushing groove 4037. There is a clearance fit between the width of the guide rod 4035 and the diameter of the L-shaped connecting plate 4048, a clearance fit between the diameter of the guide rod 4035 and the diameter of the wire round hole 4049, and a clearance fit between the inner diameter of the sliding sleeve 4045 and the diameter of the positioning slide rod 4046.

[0049] The working principle of the present invention:

[0050] When the vehicle is in plug-in hybrid drive, pure electric drive, and fuel cell drive, during braking and driving of the vehicle, when the wheels encounter bumpy roads and the vehicle is braked, under the action of the vehicle's driving inertia, the wheel positioning system 1 shakes, then drives the first Y-shaped arm 201 and the second Y-shaped arm 301 to rotate along the rotating positioning rod 204 and the positioning rod assembly 305, and then squeezes the second rotating block 405 through the first U-shaped positioning ear 303. Since the second U-shaped positioning ear 401 is positioned on the vehicle frame, the distance between the second rotating block 405 and the second U-shaped positioning ear 401 is shortened, so that the airbag main body 4042 is compressed. The high-pressure gas inside the airbag main body 4042 will be further compressed, and then under the action of the gas rebound, the airbag main body 4042 returns to its original position, causing the length of the airbag main body 4042 to shorten, effectively reducing the shaking of the vehicle when driving on bumpy roads, ensuring the smooth driving of the vehicle. And during the shock absorption process of the airbag main body 4042, the arc-shaped positioning plate 4043, the second connecting column 4044, and the sliding sleeve 4045 on the outside of the airbag main body 4042 limit the diameter of the airbag main body 4042, so that the bump force is converted into the pressure of the gas inside the airbag main body 4042, and when the airbag main body 4042 is compressed, the sliding sleeve 4045 will slide on the outside of the positioning slide rod 4046;

[0051] When it is necessary to adjust the height, stiffness, and damping of the vehicle's shock absorption system, the motor 40310 works to drive the transmission gear 40311 to rotate. Subsequently, under the cooperation between the outer teeth of the transmission gear 40311 and the transmission teeth 4039, the pushing circular plate 4036 is driven to rotate along the positioning column 4031. Then, the L-shaped connecting plate 4048 is pushed by the arc-shaped pushing groove 4037 on the pushing circular plate 4036. And under the positioning of the guiding plate 4034 and the guiding rod 4035 for the L-shaped connecting plate 4048 and the wire circular hole 4049, the positioning sliding rod 4046 spreads outward from the positioning column 4031. Then, under the pulling of the second connecting column 4044, the sliding sleeve 4045, and the arc-shaped positioning plate 4043, the overall height of the airbag main body 4042 changes. And because the distance between two adjacent arc-shaped positioning plates 4043 increases, the diameter of the airbag main body 4042 increases, and the height of the airbag main body 4042 decreases, resulting in a reduction in the shock absorption performance of the airbag main body 4042. At the same time, the overall height of the vehicle body decreases, reducing the wind resistance suffered by the vehicle during driving. It can effectively adjust the height, stiffness, and damping of the vehicle, and does not require the gas inside the airbag main body 4042 to frequently enter and exit. Therefore, compressors and filtering devices do not need to be installed on the outside of the airbag main body 4042, reducing the overall cost of the air suspension system and enabling it to be more widely applied to plug-in hybrid drive, pure electric drive, and fuel cell drive vehicles;

[0052] When performing the maintenance and upkeep of the air suspension system, it is only necessary to detect the air pressure inside the airbag main body 4042, detect whether the sliding between the sliding sleeve 4045 and the positioning sliding rod 4046 is smooth, and detect the wear condition of the transmission gear 40311 and the transmission teeth 4039. This makes the maintenance cost of the air suspension system relatively low, and it is more convenient for wide use in plug-in hybrid drive, pure electric drive, and fuel cell drive vehicles.

[0053] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0054] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0055] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A closed wire-controlled intelligent air suspension system, comprising a wheel alignment system (1), characterized in that: A shock absorbing positioning arm (2) is installed on the top of one side of the wheel alignment system (1), a shock absorbing connecting arm (3) is installed on the bottom of one side of the wheel alignment system (1), a shock absorbing assembly (4) is installed on the top of the shock absorbing connecting arm (3), the shock absorbing positioning arm (2), the shock absorbing connecting arm (3) and the shock absorbing assembly (4) are all connected to the vehicle frame, the shock absorbing connecting arm (3) is connected to the other side suspension, and the wheel alignment system (1) is connected to a steering mechanism.

2. A closed wire-controlled intelligent air suspension system according to claim 1, characterized in that: The wheel alignment system (1) comprises a first brake disc (101), a connecting positioning plate (102) is mounted on one side of the first brake disc (101), a second brake disc (103) is mounted on one side of the connecting positioning plate (102), a brake disc positioning wheel (104) is mounted on the other side of the first brake disc (101), a connecting rod (105) is mounted on one side of the brake disc positioning wheel (104), a positioning disc (106) is mounted on one side of the connecting rod (105), and the top of the positioning disc (106) is fixed A first L-shaped fixing plate (107) is connected, a first positioning bolt assembly (108) is installed on the top of the first L-shaped fixing plate (107), a second L-shaped fixing plate (1011) is fixedly connected to the bottom of the positioning disc (106), a second positioning bolt assembly (1012) is installed on the bottom of the second L-shaped fixing plate (1011), a steering pull plate (109) is fixedly connected to the front of the positioning disc (106), and a first positioning sleeve (1010) is fixedly connected to one side of the steering pull plate (109).

3. A closed wire-controlled intelligent air suspension system according to claim 2, characterized in that: The shock-absorbing positioning arm (2) comprises a first Y-shaped arm (201), a first positioning hole (202) is provided at the top of the first Y-shaped arm (201), a positioning notch (205) is fixedly connected to one side of the first Y-shaped arm (201), a rotating positioning rod (204) is provided on the inner side of the positioning notch (205), positioning notches (205) are provided on the front and back sides of the outer side of the rotating positioning rod (204), and a limiting circular plate (206) is fixedly connected to the front and back sides of the rotating positioning rod (204).

4. A closed wire-controlled intelligent air suspension system according to claim 3, characterized in that: The shock-absorbing connecting arm (3) comprises a second Y-shaped arm (301), a second positioning hole (302) is opened at the top of the second Y-shaped arm (301), a first U-shaped positioning ear (303) is fixedly connected to the top of the second Y-shaped arm (301), a third positioning sleeve (304) is fixedly connected to one side of the second Y-shaped arm (301), a positioning rod assembly (305) is arranged on the inner side of the third positioning sleeve (304), and a connecting ear (306) is fixedly connected to the top of the second Y-shaped arm (301).

5. A closed wire-controlled intelligent air suspension system according to claim 4, characterized in that: The shock absorbing component (4) comprises a second U-shaped positioning lug (401), a first rotating block (402) is installed on the inner side of the second U-shaped positioning lug (401), an adjusting component (403) is fixedly connected to the bottom of the first rotating block (402), an airbag component (404) is fixedly connected to the bottom of the adjusting component (403), and a second rotating block (405) is fixedly connected to the bottom of the airbag component (404).

6. A closed wire-controlled intelligent air suspension system according to claim 5, characterized in that: The adjustment assembly (403) comprises a positioning column (4031), the top of the positioning column (4031) is fixedly connected to a first connecting column (4032), the outer side of the positioning column (4031) is fixedly connected to a positioning ring (4033), the outer side of the positioning ring (4033) is fixedly connected to a guide plate (4034), the inner side of the guide plate (4034) is fixedly connected to a guide rod (4035), and a push rod (4036) is installed near the bottom of the outer side of the positioning column (4031). A driving circular plate (4036) is provided with an arc-shaped driving groove (4037) on the top of the driving circular plate (4036); a motor (40310) is fixedly connected to the outer side of the positioning column (4031); an output shaft of the motor (40310) is fixedly connected to a transmission gear (40311); a transmission arc-shaped groove (4038) is provided on the inner side of the driving circular plate (4036); and a transmission tooth (4039) is fixedly connected to the outer side of the transmission arc-shaped groove (4038).

7. A closed wire-controlled intelligent air suspension system according to claim 6, characterized in that: The airbag assembly (404) comprises a sealing circular plate (4041), the top of which is fixedly connected to an airbag body (4042), the outer side of which is fixedly connected to an arc-shaped positioning plate (4043), the outer side of which is fixedly connected to a second connecting column (4044), and the side of the second connecting column (4044) away from the arc-shaped positioning plate (4043) is fixedly connected to a sliding sleeve ( 4045), a positioning slide bar (4046) is arranged on the inner side of the sliding sleeve (4045), a circular baffle (4047) is fixedly connected to the bottom of the positioning slide bar (4046), an L-shaped connecting plate (4048) is fixedly connected to the top of the circular baffle (4047), a wire circular hole (4049) is opened on the outer side of the L-shaped connecting plate (4048), and a valve assembly (40410) is fixedly connected to the outer side of the airbag body (4042).

8. The closed wire-controlled intelligent air suspension system according to claim 4, characterized in that: The diameter of the first positioning hole (202) matches the diameter of the first positioning bolt assembly (108), the diameter of the second positioning hole (302) matches the diameter of the second positioning bolt assembly (1012), and the diameter of the rotating positioning rod (204) at the location where the positioning notch (205) is provided matches the inner diameter of the second positioning sleeve (203) with a clearance.

9. The closed wire-controlled intelligent air suspension system according to claim 6, characterized in that: The front and back sides of the second rotating block (405) are both provided with positioning shafts, the second rotating block (405) is connected to the first U-shaped positioning lug (303) via a positioning shaft and a positioning bearing, the pushing circular plate (4036) is connected to the positioning column (4031) via a bearing, and the outer teeth of the transmission gear (40311) are meshed with the transmission teeth (4039).

10. The closed wire-controlled intelligent air suspension system according to claim 7, characterized in that: The width of the inner side of the guide rod (4035) is the same as the width of the arc-shaped pushing groove (4037), the width of the guide rod (4035) and the diameter of the L-shaped connecting plate (4048) are clearance matched, the diameter of the guide rod (4035) and the diameter of the wire circular hole (4049) are clearance matched, and the inner diameter of the sliding sleeve (4045) and the diameter of the positioning slide rod (4046) are clearance matched.

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