Automobile active vibration control system and method

Abstract

The invention discloses an automobile active vibration control system and method, and belongs to the technical field of automobile damping, the automobile active vibration control system comprises a suspension plate, the bottom of the suspension plate is rotatably provided with a shaft lever, the shaft lever is provided with a gearbox, the automobile active vibration control system is characterized in that the top of the suspension plate is provided with two buffer air bags, and the top ends of the buffer air bags are slidably connected with piston columns; the two fixing plates are symmetrically and fixedly mounted at the top of the suspension plate; the vibration compensation mechanism comprises two inflation boxes, the two inflation boxes are fixedly installed on the suspension plate, and a fixing pipe is installed on one side of each inflation box. Through sliding connection of the piston plate and the inflation box and sliding connection of the chute and the movable shaft, when relative vibration movement occurs between the automobile chassis and the suspension plate, the air pressure of the buffering air bag can be actively increased and reduced through the inflation box, and therefore the amplitude of an automobile is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile shock absorption, and in particular, relates to an automobile active vibration control system and method. Background Art

[0002] When a car is driving, a variety of factors can cause vibration: Road surface unevenness: This is one of the most common reasons. Potholes, bumps, seams and other uneven conditions on the road surface will cause the wheels to bounce up and down periodically during the rolling process, which is then transmitted to the body through the suspension system, causing body vibration. Engine operation: The movement of components such as the reciprocating motion of the piston and the rotation of the crankshaft inside the engine will inevitably produce unbalanced forces and torques, which will be transmitted to the body and frame in the form of vibration. Active vehicle vibration control is a technology that aims to reduce or eliminate the vibration generated during the driving of the car through active intervention, thereby improving the car's ride comfort, handling stability, and reducing component fatigue damage.

[0003] Existing active control devices for automobile vibration generally monitor through sensors, convert the sensed physical quantities into electrical signals and transmit them to the controller, so that the controller controls the hydraulic device and other components for active control. However, in the use of this method, electronic components such as sensors and controllers are prone to damage on vibrating equipment for a long time, causing the control system to crash. In addition, other kinetic energy is required for control during vibration control, which increases the loss of the automobile.

[0004] In order to solve the above problems, this application proposes an active vibration control system and method for an automobile. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes an active vibration control system and method for an automobile to overcome the above technical problems existing in the existing related art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An active vibration control system for an automobile comprises a suspension plate, a shaft rod is rotatably mounted at the bottom of the suspension plate, a gearbox is mounted on the shaft rod, and the suspension plate is characterized in that two buffer air bags are mounted on the top of the suspension plate, and a piston rod is slidably connected to the top of the buffer air bag;

[0008] Two fixing plates are provided and are symmetrically fixedly installed on the top of the suspension plate;

[0009] The vibration compensation mechanism comprises two inflatable boxes, which are fixedly mounted on the suspension plate, a fixing tube is mounted on one side of the inflatable box, one end of the fixing tube is connected to the corresponding buffer airbag, and two pressure seats are arranged on the suspension plate, which are transmission-connected to the vibration compensation mechanism;

[0010] The pressure regulating mechanism comprises a pressure regulating plate, the pressure regulating plate is slidably mounted in the inflatable box, a connecting pipe is mounted on one side of the pressure regulating plate, and one end of the connecting pipe is slidably connected to the fixed pipe;

[0011] The residual buffer mechanism comprises a movable block, a movable groove is provided at the bottom of the pressure seat, limiting grooves are provided on the inner walls on both sides of the movable groove, and the movable block is slidably installed between the two limiting grooves.

[0012] Preferably, the vibration compensation mechanism also includes a piston plate, which is slidably mounted on the inner wall of the inflation box, and a push rod is fixedly mounted on one side of the piston plate, the push rod is slidably connected to the inflation box, and the push rod is slidably connected to the fixed plate.

[0013] Through the sliding connection between the piston plate and the inflation box, and under the pushing of the push rod, the gas in the inflation box can be squeezed, thereby increasing the pressure in the inflation box and acting on the cushion airbag, thereby actively replenishing the air pressure in the cushion airbag.

[0014] Preferably, a push plate is slidably connected to one side of the fixed plate, an inclined groove is provided on one side of the push plate, a movable shaft is slidably connected to the inner wall of the inclined groove, and the movable shaft is fixedly connected to the corresponding push rod.

[0015] The movable push plate is connected to the movable shaft in a sliding manner through the inclined groove, and the push rod is connected to the fixed plate in a transverse sliding manner, so that the movable push plate can drive the push rod to move, thereby driving the piston plate to move.

[0016] Preferably, a sliding rod is fixedly installed on one side of the fixed plate, and a connecting block is fixedly installed on one side of the push plate, and the connecting block is slidably connected to the sliding rod.

[0017] The fixed plate is slidably connected to the connecting block through the sliding rod, so that the push plate can be limited, so that the push plate can move stably on the fixed plate.

[0018] Preferably, the pressure regulating mechanism further comprises an active rod, a mounting box is fixedly mounted on one side of the inflation box, the active rod is rotatably mounted on the inner wall of the mounting box, and a rotating block is fixedly mounted on the top end of the active rod.

[0019] The active rod is connected to the mounting box through rotation, so that the active rod can be stably supported.

[0020] Preferably, a push rod is fixedly mounted on one side of the pressure regulating plate, the push rod is slidably connected to the inflation box, and the active rod is transmission-connected to the push rod.

[0021] The moving push rod can drive the pressure regulating plate to move its position, and then through the sliding connection between the pressure regulating plate and the inflation box, the gas in the inflation box can be squeezed, thereby increasing the pressure in the inflation box.

[0022] Preferably, a worm is fixedly mounted on the active rod, a worm wheel is rotatably connected to the inner wall of the mounting box, the worm and the worm wheel are meshed with each other, and the worm wheel is threadedly connected to the push rod.

[0023] The rotating active rod can drive the worm wheel to rotate through the mutual meshing of the worm and the worm wheel, and the worm wheel can drive the push rod to move its position through the threaded connection with the push rod.

[0024] Preferably, the residual buffer mechanism also includes a limit block, which is slidably installed on the inner wall between the two limit grooves, and the bottom of the limit block is rotatably connected to a connecting rod, the bottom end of the connecting rod is rotatably connected to the push plate, and a hexagonal clamp block is fixedly installed on the connecting rod.

[0025] Through the sliding connection between the limit block and the movable block and the inner walls of the two limit grooves, there is a movable margin between the connecting rod and the pressure seat when the suspension plate moves up and down, so that the moving suspension plate can first act between the buffer airbag and the piston column, so that when the suspension plate has a slight vibration, it is directly buffered by the buffer airbag, and when a larger vibration occurs, the push plate is driven to move through the pressure seat and the connecting rod, and then acts on the inflation box, thereby replenishing the air pressure in the buffer airbag and increasing the shock absorption effect.

[0026] Preferably, a thread groove is formed at the top end of the connecting rod, an adjusting rod is threadedly connected to the inner wall of the thread groove, and the top end of the adjusting rod is fixedly connected to the movable block.

[0027] The rotating connecting rod is connected to the thread of the adjusting rod through the thread groove, so that the adjusting rod can be driven to rise and fall, and then the distance between the movable block and the limit block can be adjusted, so as to adjust the movable margin between the movable block and the limit block and the limit groove, and then the buffering effect of the vehicle vibration can be adjusted.

[0028] A method for using an active vibration control system for an automobile comprises the following steps:

[0029] S1: When the car encounters bumps, vibration will occur between the car suspension plate and the car chassis, and the car chassis will form an up and down amplitude. The vibrating car is buffered by the piston column and the buffer airbag. When the car chassis moves downward, the car chassis will push the piston column to move downward and compress the buffer airbag. At the same time, the car chassis drives the pressure seat to move downward. When the piston column moves a certain distance, the inner wall of the limit groove in the pressure seat contacts the movable block and pushes the movable block to move downward. The movable block drives the connecting rod to move downward through the adjusting rod, and the connecting rod drives the push plate downward. The movable push plate is connected to the movable shaft through the inclined groove, and the push rod is connected to the fixed plate through the transverse sliding connection, so that the movable push plate can drive the push rod to move, and then drive the piston plate to move. The piston plate is connected to the inflatable box through the sliding connection, and the gas in the inflatable box can be squeezed under the push of the push rod, so as to increase the pressure in the inflatable box, and act on the buffer airbag through the fixed pipe, so as to actively supplement the air pressure in the buffer airbag, thereby increasing the air pressure in the buffer airbag and reducing the downward impact force of the piston column, so as to increase the shock absorption and buffering effect;

[0030] S2: When it is necessary to adjust the normal air pressure in the buffer airbag, the rotating block is rotated, and the rotating block drives the active rod to rotate. The active rod drives the worm wheel to rotate through the mutual meshing of the worm and the worm wheel. The worm wheel is connected with the push rod through a thread, thereby driving the push rod and the pressure regulating plate to move. The pressure regulating plate is connected with the inflatable box through sliding, so that the gas in the inflatable box can be squeezed, thereby increasing the pressure in the inflatable box, and acting on the buffer airbag through the connecting pipe and the fixed pipe, increasing the air pressure in the buffer airbag, thereby increasing the strength of the piston rod acting on the buffer airbag, thereby increasing the shock absorption strength of the car;

[0031] S3: When it is necessary to adjust the supplementary sensitivity of the piston plate, rotate the hexagonal clamping block, the hexagonal clamping block drives the connecting rod to rotate, and the connecting rod is connected to the thread of the adjusting rod through the threaded groove, so as to drive the adjusting rod to move up and down, and then the distance between the movable block and the limit block can be adjusted, so as to adjust the movable margin between the movable block and the limit block and the limit groove, so that the following margin of the connecting rod is adjusted when the pressure seat moves up and down, and then the sensitivity acting on the piston plate can be adjusted, thereby adjusting the sensitivity of the active air replenishment of the buffer airbag.

[0032] In summary, the technical effects and advantages of the present invention are as follows:

[0033] Through the sliding connection between the piston plate and the inflation box, and the sliding connection between the inclined groove and the movable shaft, when relative vibration movement occurs between the automobile chassis and the suspension plate, the air pressure of the buffer airbag can be actively increased or decreased through the inflation box, thereby reducing the amplitude of the automobile.

[0034] Through the mutual meshing of the worm and the worm wheel, the threaded connection between the worm wheel and the push rod, and the sliding connection between the pressure regulating plate and the inflation box, the rotating active rod can adjust the position of the pressure regulating plate in the inflation box, and then adjust the air pressure in the inflation box, and fully act on the cushioning airbag, thereby adjusting the cushioning strength.

[0035] Through the sliding connection between the movable block and the limit block and the limit groove, and the threaded connection between the adjusting rod and the connecting rod through the threaded groove, the rotating connecting rod can adjust the distance between the movable block and the limit block in the limit groove, and then can adjust the movable margin of the connecting rod on the pressure seat, thereby adjusting the sensitivity of the buffer airbag reaction supplement, and performing the adjustment operation according to different amplitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a side view structural schematic diagram of the present invention;

[0038] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0039] Figure 4 It is a schematic diagram of the cross-sectional structure of the inflation box of the present invention;

[0040] Figure 5 It is a schematic diagram of the transmission connection structure between the active rod and the pressure regulating plate of the present invention;

[0041] Figure 6 It is a schematic diagram of the transmission connection structure between the connecting rod and the top rod of the present invention;

[0042] Figure 7 It is a schematic diagram of the structure of the surplus buffer mechanism of the present invention.

[0043] In the figure:

[0044] 1. Suspension plate; 2. Shaft rod; 3. Gearbox; 4. Piston column; 5. Buffer airbag; 6. Vibration compensation mechanism; 61. Inflatable box; 62. Piston plate; 63. Push rod; 64. Fixed tube; 65. Push plate; 66. Inclined groove; 67. Active shaft; 68. Connecting rod; 69. Pressure seat; 7. Pressure regulating mechanism; 71. Pressure regulating plate; 72. Connecting tube; 73. Push rod; 74. Mounting box; 75. Active rod; 76. Worm; 77. Worm wheel; 78. Rotating block; 8. Residual buffer mechanism; 81. Active groove; 82. Limiting groove; 83. Limiting block; 84. Adjusting rod; 85. Active block; 86. Hexagonal clamping block; 9. Fixed plate; 10. Sliding rod; 11. Connecting block. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] Reference Figure 1-7 An active vibration control system for an automobile comprises a suspension plate 1, a shaft 2 is rotatably mounted on the bottom of the suspension plate 1, a gearbox 3 is mounted on the shaft 2, and the suspension plate 1 is characterized in that two buffer air bags 5 are mounted on the top of the suspension plate 1, a piston column 4 is slidably connected to the top of the buffer air bag 5, and the piston column 4 is mounted on the chassis of the automobile;

[0047] Two fixing plates 9 are provided and symmetrically fixedly installed on the top of the suspension plate 1;

[0048] The vibration compensation mechanism 6 includes two inflatable boxes 61, which are fixedly mounted on the suspension plate 1. A fixing tube 64 is mounted on one side of the inflatable box 61, and one end of the fixing tube 64 is connected to the corresponding buffer airbag 5. Two pressure seats 69 are provided on the suspension plate 1, and the pressure seats 69 are transmission-connected to the vibration compensation mechanism 6. The two pressure seats 69 are fixedly mounted on the chassis of the vehicle.

[0049] The pressure regulating mechanism 7 includes a pressure regulating plate 71, which is slidably mounted in the inflatable box 61, and a connecting pipe 72 is mounted on one side of the pressure regulating plate 71, and one end of the connecting pipe 72 is slidably connected to the fixed pipe 64;

[0050] The residual buffer mechanism 8 includes a movable block 85 . A movable groove 81 is provided at the bottom of the pressure seat 69 . Limiting grooves 82 are provided on the inner walls on both sides of the movable groove 81 . The movable block 85 is slidably installed between the two limiting grooves 82 .

[0051] Reference Figure 1 and Figure 4 The vibration compensation mechanism 6 also includes a piston plate 62, which is slidably mounted on the inner wall of the inflation box 61. A push rod 63 is fixedly mounted on one side of the piston plate 62. The push rod 63 is slidably connected to the inflation box 61, and the push rod 63 is slidably connected to the fixed plate 9. Through the sliding connection between the piston plate 62 and the inflation box 61, and under the push of the push rod 63, the gas in the inflation box 61 can be squeezed, thereby increasing the pressure in the inflation box 61 and acting on the buffer airbag 5, thereby actively replenishing the air pressure in the buffer airbag 5.

[0052] Reference Figure 6A push plate 65 is slidably connected to one side of the fixed plate 9, and an inclined groove 66 is opened on one side of the push plate 65. A movable shaft 67 is slidably connected to the inner wall of the inclined groove 66. The movable shaft 67 is fixedly connected to the corresponding push rod 63. The movable push plate 65 is slidably connected to the movable shaft 67 through the inclined groove 66, and the push rod 63 is laterally slidably connected to the fixed plate 9, so that the movable push plate 65 can drive the push rod 63 to move, and then drive the piston plate 62 to move.

[0053] Reference Figure 2 A slide rod 10 is fixedly installed on one side of the fixed plate 9, and a connecting block 11 is fixedly installed on one side of the push plate 65. The connecting block 11 is slidably connected to the slide rod 10. The fixed plate 9 is slidably connected to the connecting block 11 through the slide rod 10, so that the push plate 65 can be limited, so that the push plate 65 can move stably on the fixed plate 9.

[0054] Reference Figure 5 The pressure regulating mechanism 7 also includes an active rod 75. A mounting box 74 is fixedly installed on one side of the inflation box 61. The active rod 75 is rotatably installed on the inner wall of the mounting box 74. A rotating block 78 is fixedly installed on the top of the active rod 75. The active rod 75 is connected to the mounting box 74 through rotation, so that the active rod 75 can be stably supported.

[0055] Reference Figure 4 A push rod 73 is fixedly installed on one side of the pressure regulating plate 71. The push rod 73 is slidably connected to the inflation box 61. The active rod 75 is transmission-connected to the push rod 73. The moving push rod 73 can drive the pressure regulating plate 71 to move its position, and then through the sliding connection between the pressure regulating plate 71 and the inflation box 61, the gas in the inflation box 61 can be squeezed, thereby increasing the pressure in the inflation box 61.

[0056] Reference Figure 5 A worm 76 is fixedly mounted on the active rod 75, and a worm wheel 77 is rotatably connected to the inner wall of the mounting box 74. The worm 76 and the worm wheel 77 are meshed with each other, and the worm wheel 77 is threadedly connected to the push rod 73. The rotating active rod 75 can drive the worm wheel 77 to rotate through the mutual meshing of the worm 76 and the worm wheel 77, and the worm wheel 77 can drive the push rod 73 to move its position through the threaded connection with the push rod 73.

[0057] Reference Figure 7The residual buffer mechanism 8 also includes a limit block 83, which is slidably installed on the inner wall between the two limit grooves 82. The bottom of the limit block 83 is rotatably connected to a connecting rod 68, and the bottom end of the connecting rod 68 is rotatably connected to the push plate 65. A hexagonal clamping block 86 is fixedly installed on the connecting rod 68. Through the sliding connection between the limit block 83 and the movable block 85 and the inner walls of the two limit grooves 82, when the suspension plate 1 moves up and down, there is a movable margin between the connecting rod 68 and the pressure seat 69, so that the moving suspension plate 1 can first act between the buffer airbag 5 and the piston column 4, so that when the suspension plate 1 has a slight vibration, it is directly buffered by the buffer airbag 5. When a larger vibration occurs, the push plate 65 is driven to move by the pressure seat 69 and the connecting rod 68, and then acts on the inflation box 61, thereby replenishing the air pressure of the buffer airbag 5 and increasing the shock absorption effect.

[0058] Reference Figure 7 A threaded groove is provided at the top of the connecting rod 68, and an adjusting rod 84 is threadedly connected to the inner wall of the threaded groove. The top of the adjusting rod 84 is fixedly connected to the movable block 85. The rotating connecting rod 68 is threadedly connected to the adjusting rod 84 through the threaded groove, thereby driving the adjusting rod 84 to move up and down, and then adjusting the distance between the movable block 85 and the limit block 83, thereby adjusting the movable margin between the movable block 85 and the limit block 83 and the limit groove 82, and then adjusting the buffering effect of the vehicle vibration.

[0059] A method for using an active vibration control system for an automobile comprises the following steps:

[0060] S1: When the car encounters bumps, vibration will occur between the car suspension plate 1 and the car chassis, and the car chassis will form an up and down amplitude. The vibrating car is buffered by the piston column 4 and the buffer airbag 5. When the car chassis moves downward, the car chassis will push the piston column 4 to move downward and squeeze, and compress the buffer airbag 5. At the same time, the car chassis drives the pressure seat 69 to move downward. When the piston column 4 moves a certain distance, the inner wall of the limit groove 82 in the pressure seat 69 contacts the movable block 85 and pushes the movable block 85 to move downward. The movable block 85 drives the connecting rod 68 to move downward through the adjusting rod 84, and the connecting rod 68 drives the push plate 65 to move downward. The movable push plate 65 is slidably connected to the movable shaft 67 through the inclined groove 66, and the push rod 63 is lateral slidably connected to the fixed plate 9, so that the movable push plate 65 can drive the push rod 63 to move, and then drive the piston plate 62 to move, through the sliding connection between the piston plate 62 and the inflatable box 61, and under the push of the push rod 63, the gas in the inflatable box 61 can be squeezed, thereby increasing the pressure in the inflatable box 61, and acting on the buffer airbag 5 through the fixed tube 64, so as to actively supplement the air pressure of the buffer airbag 5, thereby increasing the air pressure in the buffer airbag 5, reducing the downward impact force of the piston column 4, and thus increasing the shock absorption and buffering effect;

[0061] S2: When it is necessary to adjust the normal air pressure in the buffer airbag 5, the rotating block 78 is rotated, and the rotating block 78 drives the active rod 75 to rotate. The active rod 75 drives the worm wheel 77 to rotate through the mutual meshing of the worm 76 and the worm wheel 77. The worm wheel 77 is connected with the push rod 73 through a thread, thereby driving the push rod 73 and the pressure regulating plate 71 to move. The pressure regulating plate 71 is connected with the air box 61 through sliding, so that the gas in the air box 61 can be squeezed, thereby increasing the pressure in the air box 61, and acting on the buffer airbag 5 through the connecting pipe 72 and the fixing pipe 64, increasing the air pressure in the buffer airbag 5, thereby increasing the strength of the piston rod 4 acting on the buffer airbag 5, thereby increasing the shock absorption strength of the car;

[0062] S3: When it is necessary to adjust the supplementary sensitivity of the piston plate 62, rotate the hexagonal block 86, and the hexagonal block 86 drives the connecting rod 68 to rotate. The connecting rod 68 is threadedly connected to the adjusting rod 84 through the threaded groove, thereby being able to drive the adjusting rod 84 to move up and down, and then being able to adjust the distance between the movable block 85 and the limit block 83, thereby adjusting the movable margin between the movable block 85 and the limit block 83 and the limit groove 82, so that when the pressure seat 69 moves up and down, the following margin of the connecting rod 68 is adjusted and changed, and then the sensitivity acting on the piston plate 62 can be adjusted, thereby adjusting the sensitivity of the active air replenishment acting on the buffer airbag 5.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An active vibration control system for an automobile, comprising a suspension plate (1), a shaft (2) being rotatably mounted at the bottom of the suspension plate (1), a gearbox (3) being mounted on the shaft (2), characterized in that: Two buffer air bags (5) are installed on the top of the suspension plate (1), and the top ends of the buffer air bags (5) are slidably connected to piston rods (4); Two fixing plates (9) are provided and are symmetrically fixedly mounted on the top of the suspension plate (1); The vibration compensation mechanism (6) comprises two inflation boxes (61), the two inflation boxes (61) are fixedly mounted on the suspension plate (1), a fixing tube (64) is mounted on one side of the inflation box (61), one end of the fixing tube (64) is connected to a corresponding buffer airbag (5), and two pressure seats (69) are provided on the suspension plate (1), and the pressure seats (69) are drivingly connected to the vibration compensation mechanism (6); A pressure regulating mechanism (7) comprises a pressure regulating plate (71), wherein the pressure regulating plate (71) is slidably mounted in the inflatable box (61), a connecting pipe (72) is mounted on one side of the pressure regulating plate (71), and one end of the connecting pipe (72) is slidably connected to a fixed pipe (64); The residual buffer mechanism (8) comprises a movable block (85). The bottom of the pressure seat (69) is provided with a movable groove (81). The inner walls on both sides of the movable groove (81) are provided with limiting grooves (82). The movable block (85) is slidably installed between the two limiting grooves (82).

2. The active vibration control system for an automobile according to claim 1, characterized in that: The vibration compensation mechanism (6) further comprises a piston plate (62), wherein the piston plate (62) is slidably mounted on the inner wall of the inflation box (61), a push rod (63) is fixedly mounted on one side of the piston plate (62), the push rod (63) is slidably connected to the inflation box (61), and the push rod (63) is slidably connected to the fixed plate (9).

3. The active vibration control system for an automobile according to claim 2, characterized in that: A push plate (65) is slidably connected to one side of the fixed plate (9), an inclined groove (66) is provided on one side of the push plate (65), a movable shaft (67) is slidably connected to the inner wall of the inclined groove (66), and the movable shaft (67) is fixedly connected to the corresponding push rod (63).

4. The active vibration control system for an automobile according to claim 3, characterized in that: A sliding rod (10) is fixedly mounted on one side of the fixed plate (9), and a connecting block (11) is fixedly mounted on one side of the push plate (65), wherein the connecting block (11) is slidably connected to the sliding rod (10).

5. The active vibration control system for an automobile according to claim 1, characterized in that: The pressure regulating mechanism (7) further comprises an active rod (75), a mounting box (74) is fixedly mounted on one side of the inflation box (61), the active rod (75) is rotatably mounted on the inner wall of the mounting box (74), and a rotating block (78) is fixedly mounted on the top end of the active rod (75).

6. The active vibration control system for an automobile according to claim 5, characterized in that: A push rod (73) is fixedly mounted on one side of the pressure regulating plate (71), the push rod (73) is slidably connected to the inflation box (61), and the active rod (75) is transmission-connected to the push rod (73).

7. The active vibration control system for an automobile according to claim 6, characterized in that: A worm (76) is fixedly mounted on the active rod (75), a worm wheel (77) is rotatably connected to the inner wall of the mounting box (74), the worm (76) and the worm wheel (77) are meshed with each other, and the worm wheel (77) is threadedly connected to the push rod (73).

8. The active vibration control system for an automobile according to claim 1, characterized in that: The residual buffer mechanism (8) also includes a limit block (83), which is slidably mounted on the inner wall between the two limit grooves (82), and the bottom of the limit block (83) is rotatably connected to a connecting rod (68), the bottom end of the connecting rod (68) is rotatably connected to the push plate (65), and a hexagonal clamping block (86) is fixedly mounted on the connecting rod (68).

9. The active vibration control system for an automobile according to claim 8, characterized in that: A thread groove is formed at the top of the connecting rod (68), an adjusting rod (84) is threadedly connected to the inner wall of the thread groove, and the top of the adjusting rod (84) is fixedly connected to the movable block (85).

10. The method for using the active vibration control system for an automobile according to claims 1-9, characterized in that: The following steps are involved: S1: When the car encounters a bump, vibration will occur between the car suspension plate (1) and the car chassis, and the car chassis will form an up-and-down amplitude. The vibrating car is buffered by the piston column (4) and the buffer airbag (5). When the car chassis moves downward, the car chassis will push the piston column (4) to move downward and squeeze, and compress the buffer airbag (5). At the same time, the car chassis drives the pressure seat (69) to move downward. When the piston column (4) moves a certain distance, the inner wall of the limit groove (82) in the pressure seat (69) contacts the movable block (85) and pushes the movable block (85) to move downward. The movable block (85) drives the connecting rod (68) to move downward through the adjusting rod (84), and the connecting rod (68) drives the push plate (65) to move downward. The movable push plate (65) is slidably connected to the movable shaft (67) through the inclined groove (66), and the push rod (63) is slidably connected to the fixed plate (9) in a transverse manner, so that the movable push plate (65) can drive the push rod (63) to move, thereby driving the piston plate (62) to move. Through the sliding connection between the piston plate (62) and the inflation box (61), the gas in the inflation box (61) can be squeezed under the push of the push rod (63), thereby increasing the pressure in the inflation box (61), and acting on the buffer airbag (5) through the fixed tube (64), so as to actively supplement the air pressure in the buffer airbag (5), thereby increasing the air pressure in the buffer airbag (5), reducing the downward impact force of the piston column (4), and thereby increasing the shock absorbing and buffering effect; S2: When it is necessary to adjust the normal air pressure in the cushion airbag (5), the rotating block (78) is rotated, and the rotating block (78) drives the active rod (75) to rotate. The active rod (75) drives the worm wheel (77) to rotate through the mutual meshing of the worm (76) and the worm wheel (77). The worm wheel (77) is threadedly connected with the push rod (73), thereby driving the push rod (73) and the pressure regulating plate (71) to move. The pressure regulating plate (71) is slidably connected with the inflation box (61), so that the gas in the inflation box (61) can be squeezed, thereby increasing the pressure in the inflation box (61), and acting on the cushion airbag (5) through the connecting pipe (72) and the fixing pipe (64), thereby increasing the air pressure in the cushion airbag (5), thereby increasing the strength of the piston rod (4) acting on the cushion airbag (5), thereby increasing the shock absorption strength of the automobile; S3: When it is necessary to adjust the supplementary sensitivity of the piston plate (62), the hexagonal clamping block (86) is rotated, and the hexagonal clamping block (86) drives the connecting rod (68) to rotate. The connecting rod (68) is threadedly connected to the adjusting rod (84) through the threaded groove, thereby being able to drive the adjusting rod (84) to move up and down, and then being able to adjust the distance between the movable block (85) and the limit block (83), thereby adjusting the movable margin between the movable block (85) and the limit block (83) and the limit groove (82), so that when the pressure seat (69) moves up and down, the following margin of the connecting rod (68) is adjusted and changed, and then the sensitivity acting on the piston plate (62) can be adjusted, thereby adjusting the sensitivity of the active air replenishment acting on the buffer airbag (5).

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