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CN-120080681-B - Air suspension system, control method thereof, related equipment and vehicle

CN120080681BCN 120080681 BCN120080681 BCN 120080681BCN-120080681-B

Abstract

The embodiment of the application discloses an air suspension system, a control method thereof, related equipment and a vehicle. The air suspension system comprises an air passage assembly, an air spring group and an anti-roll rod device, wherein the air spring group is connected with the air passage assembly and is configured to adopt air input or output by the air passage assembly so as to adjust the height of a vehicle body of the vehicle, the anti-roll rod device comprises a first half rod and a second half rod, the first half rod and the second half rod are connected or disconnected by adopting the air input or output by the air passage assembly so as to realize cooperative control of the stabilizer rod and the air spring, the air suspension can be adapted to complex off-road working conditions requiring a larger suspension stroke, and the vehicle can realize good riding comfort and safety while pursuing extremely controllable performance, and the overall performance of the vehicle is improved.

Inventors

  • XU SIFEI
  • LU CHANG
  • SHI BO
  • LIU JIANHUA
  • LIANG ENHAO

Assignees

  • 比亚迪股份有限公司

Dates

Publication Date
20260505
Application Date
20250217

Claims (20)

  1. 1. An air suspension system (10), comprising: An airway assembly (100); An air spring assembly (200) connected to the air duct assembly (100) and configured to adjust a body height of a vehicle using air input or output from the air duct assembly (100); the anti-roll bar device (300) comprises a first half bar (310) and a second half bar (320), wherein the first half bar (310) and the second half bar (320) are connected or disconnected by adopting gas input or output by the air passage assembly (100); Wherein the air passage assembly (100) comprises a public air passage (110), a first electromagnetic valve group (120) and a second electromagnetic valve group (130); one end of the first electromagnetic valve group (120) and one end of the second electromagnetic valve group (130) are connected with the public air passage (110), the other end of the first electromagnetic valve group (120) is connected with the air spring group (200), and the other end of the second electromagnetic valve group (130) is connected with the air cylinder (340) of the anti-roll bar device (300); The first solenoid valve group (120) is configured to open when the body height of the vehicle is adjusted and to close when the body height of the vehicle is finished being adjusted; the second solenoid valve (122) is configured to be opened when the first half lever (310) and the second half lever (320) are controlled to be connected, and to be closed when the first half lever (310) and the second half lever (320) are controlled to be disconnected.
  2. 2. The air suspension system (10) according to claim 1, wherein said anti-roll bar arrangement (300) further comprises an intermediate connection arrangement (330); Wherein the intermediate connection means (330) is configured to employ gas input or output by the airway assembly (100) to control the connection or disconnection of the first half-rod (310) and the second half-rod (320).
  3. 3. The air suspension system (10) according to claim 2, wherein the intermediate connection means (330) comprises a slider (331); wherein the slider (331) is configured to slide with gas input or output by the gas passage assembly (100) to control the connection or disconnection of the first half rod (310) and the second half rod (320).
  4. 4. An air suspension system (10) according to claim 3 wherein said first half bar (310) is adjacent a first end of said second half bar (320) and said second half bar (320) is adjacent a second end of said first half bar (310) is engaged with said slider (331) to connect said first half bar (310) with said second half bar (320).
  5. 5. The air suspension system (10) of claim 4 wherein said second end engages said slider (331) when said first lever half (310) is disconnected from said second lever half (320).
  6. 6. The air suspension system (10) of claim 4 wherein said intermediate connection means (330) further comprises a proximity sensor (332), said proximity sensor (332) configured to detect whether said slider (331) is approaching to determine a disconnection state between said first half bar (310) and said second half bar (320).
  7. 7. The air suspension system (10) of claim 6 wherein said proximity sensor (332) comprises a first sensor (3321) and a second sensor (3322); Wherein the first sensor (3321) is configured to detect whether the slider (331) is approaching to determine whether a connection is made between the first half bar (310) and the second half bar (320), and the second sensor (3322) is configured to detect whether the slider (331) is approaching to determine whether a disconnection is made between the first half bar (310) and the second half bar (320).
  8. 8. The air suspension system (10) according to claim 7 wherein said intermediate connection device (330) further comprises a device body (333); The device comprises a device main body (333), a first half rod (310) and a second half rod (320), wherein the first sensor (3321) is arranged on one side of the device main body (333) close to the first half rod, and the second sensor (3322) is arranged on one side of the device main body (333) close to the second half rod.
  9. 9. The air suspension system (10) of claim 8 wherein said device body (333) defines a cavity (334), said first end, said second end and said slider (331) being disposed within said cavity (334).
  10. 10. The air suspension system (10) of claim 8 wherein said intermediate connection means (330) further comprises an elastic member (335); wherein one end of the elastic member (335) is connected to the device body (333), and the other end of the elastic member (335) is connected to one end of the slider (331).
  11. 11. An air suspension system (10) according to claim 3, wherein a piston (343) connected to the slider (331) by a piston rod (344) is provided inside the cylinder (340), the piston (343) being configured to slide inside the cylinder (340) by gas input or output from the air duct assembly (100) to drive the slider (331) to connect or disconnect the first half-bar (310) and the second half-bar (320).
  12. 12. The air suspension system (10) of claim 11, wherein a stop (341) is provided on the piston rod (344), the stop (341) being configured to indicate the travel of the piston rod (344).
  13. 13. The air suspension system (10) of claim 12 wherein said limiter (341) comprises a first limiter (3411) and a second limiter (3412), said intermediate connection device (330) further comprising a travel switch (336); Wherein the first limit block (3411) is configured to contact the travel switch (336) to determine that the piston rod (344) reaches a first travel, and the second limit block (3412) is configured to contact the travel switch (336) to determine that the piston rod (344) reaches a second travel, the first travel being greater than or equal to the second travel.
  14. 14. The air suspension system (10) of claim 11 wherein said air cylinder (340) is further provided with an air tap (342), one end of said air tap (342) being in communication with said air duct assembly (100), the other end of said air tap (342) being in communication with the interior of said air cylinder (340).
  15. 15. The air suspension system (10) of claim 1 wherein said air spring set (200) includes a first air spring (210), a second air spring (220), a third air spring (230), and a fourth air spring (240); Wherein the first air spring (210), the second air spring (220), the third air spring (230) and the fourth air spring (240) are located at a left front side, a right front side, a left rear side and a right rear side of the vehicle, respectively.
  16. 16. The air suspension system (10) of claim 15 wherein said first solenoid valve group (120) includes a first solenoid valve (121), a second solenoid valve (122), a third solenoid valve (123) and a fourth solenoid valve (124); Wherein, one end of first solenoid valve (121), one end of second solenoid valve (122), one end of third solenoid valve (123) and one end of fourth solenoid valve (124) are connected respectively public air flue (110), the other end of first solenoid valve (121) is connected first air spring (210), the other end of second solenoid valve (122) is connected second air spring (220), the other end of third solenoid valve (123) is connected third air spring (230), the other end of fourth solenoid valve (124) is connected fourth air spring (240).
  17. 17. The air suspension system (10) of claim 1 wherein said first half bar (310) comprises a first left half bar (311) and a second left half bar (312), said second half bar (320) comprising a first right half bar (321) and a second right half bar (322); wherein the first half rod (310) comprises a first left half rod (311) and a second left half rod (312), the connection state between the first left half rod (311) and the first right half rod (321) is controlled by adopting a corresponding air cylinder (340), and/or, The second half rod (320) comprises a first right half rod (321) and a second right half rod (322), and the connection states between the second left half rod (312) and the second right half rod (322) are controlled by adopting corresponding air cylinders (340).
  18. 18. The air suspension system (10) of claim 17 wherein said second solenoid valve group (130) includes a fifth solenoid valve (131) and a sixth solenoid valve (132); one end of the fifth electromagnetic valve (131) and one end of the sixth electromagnetic valve (132) are connected with the public air passage (110), the other end of the fifth electromagnetic valve (131) is connected with a cylinder (340) corresponding to the first left half rod (311) and the first right half rod (321), and the other end of the sixth electromagnetic valve (132) is connected with a cylinder (340) corresponding to the second left half rod (312) and the second right half rod (322).
  19. 19. The air suspension system (10) of claim 1, wherein the air suspension system (10) further comprises an air control assembly (400); wherein the air control assembly (400) is configured to control the gas input or output by the airway assembly (100).
  20. 20. The air suspension system (10) of claim 19 wherein said air control assembly (400) includes a controller (410), a compressor assembly (420), and an air reservoir (430); Wherein the controller (410) is configured to control operation of the compressor assembly (420) to control gas input or output by the compressor assembly (420) to the airway assembly (100), and the gas storage tank (430) is configured to store gas.

Description

Air suspension system, control method thereof, related equipment and vehicle Technical Field The present application relates to the field of suspension technologies, and in particular, to an air suspension system, a control method thereof, a related device, and a vehicle. Background The air suspension is an advanced vehicle suspension device, and utilizes an air spring to replace a traditional spiral spring, and the height and suspension rigidity of a vehicle body are adjusted through compressed air, so that the suspension state can be automatically or manually adjusted according to different road conditions and driving requirements, and the operability, stability and riding comfort of a vehicle are improved. However, air suspensions have certain limitations, particularly in complex conditions, such as off-road conditions, where large suspension strokes cannot be achieved by means of air springs alone. Disclosure of Invention Aiming at the defects of the prior art, the application provides an air suspension system, a control method thereof, related equipment and a vehicle, and aims to solve the technical problem that an air suspension in the prior art cannot realize larger suspension stroke under complex working conditions. In a first aspect, the present application provides an air suspension system comprising: An air passage assembly; An air spring assembly connected with the air passage assembly and configured to adjust the height of the vehicle body by using the air inputted or outputted from the air passage assembly; The anti-roll rod device comprises a first half rod and a second half rod, wherein the first half rod and the second half rod are connected or disconnected by gas input or output by the air passage assembly. In a second aspect, the present application further provides a control method of an air suspension system, which is applied to the air suspension system provided in the first aspect, where the control method includes: Based on the running state information of the vehicle, the height of the vehicle body of the vehicle is adjusted or/and the disconnection state between the first half rod and the second half rod is adjusted according to the gas input or output by the air passage assembly. In a third aspect, the present application also provides a control device for an air suspension system, applied to the air suspension system provided in the first aspect, where the control device includes: And the adjusting unit is used for adjusting the height of the vehicle body of the vehicle or/and adjusting the disconnection state between the first half rod and the second half rod according to the gas input or output by the air passage assembly based on the running state information of the vehicle. In a fourth aspect, the present application also provides a control system of an air suspension system, which is applied to execute the control method of the air suspension system provided in the second aspect, where the control system includes: The first processing module is configured to process the operation signal of the vehicle to obtain a processed operation signal; the second processing module is configured to process the sensor signals in the air suspension system to obtain processed sensor signals; The control decision module is configured to generate a decision signal according to the processed running signal and the processed sensor signal; The driving module is configured to drive the gas input or output by the air passage assembly according to the decision signal so as to adjust the height of the vehicle body of the vehicle or/and adjust the disconnection state between the first half rod and the second half rod. In a fifth aspect, the present application further provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the control method of the air suspension system provided in the second aspect when executing the computer program. In a sixth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the control method of the air suspension system provided in the second aspect. In a seventh aspect, the present application also provides a vehicle comprising the air suspension system provided in the first aspect, or a vehicle performing the steps of the control method of the air suspension system provided in the second aspect while running. The application provides an air suspension system which comprises an air passage assembly, an air spring group and an anti-roll bar device, wherein the air spring group is connected with the air passage assembly and is configured to adopt air input or output by the air passage assembly so as to adjust the height of a vehicle body of a vehicle, the anti-roll bar device comprises a first half bar and a second half bar, the first half bar and the seco