CN220447601U - Air suspension system and vehicle - Google Patents

Abstract

The utility model discloses an air suspension system and a vehicle, the air suspension system comprises: a gas storage tank; an air compression assembly; an external air inlet and outlet assembly; a plurality of air spring assemblies; the air distribution valve assembly, the air storage tank, the air compression assembly and the air spring assemblies are all connected with the same external air inlet and outlet assembly through the air distribution valve assembly. Therefore, the air suspension system can enable air inlet and air exhaust to share one air passage interface, so that the complexity of external communication air passages can be reduced, matching of a conventional single-inlet single-outlet air compression assembly can be realized, the integration cost of the air suspension system can be effectively reduced, the lifting of the open-type and closed-type mixed air suspension system can be realized, and the consumption of battery electric quantity can be reduced.

Description

Air suspension system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an air suspension system and a vehicle.

Background

The core function of the air suspension system is to realize lifting of the vehicle, the basic principle is realized by inflating and deflating the air spring, the air suspension system can be divided into an open system and a closed system according to the different air path principles, an air compressor of the open air suspension system pressurizes the atmosphere and pumps the air into an air storage tank, high-pressure air of the air storage tank is pressed into the air spring through a valve during lifting, and the air of the air spring is directly discharged to the atmosphere during descending. The system has the defect that the high-pressure gas in the air spring is discharged to the atmosphere when the system descends, the energy of the compressed air is required to be lost when the system descends, and the power of the compressor required by the system is high. The air compressor in the closed air suspension system is arranged between the air storage tank and the air bag, lifting control is realized through carrying air in the air storage tank and the air spring, the power of the compressor is low, the efficiency is high, the compressor is required to be used for intervention work during lifting every time, a large amount of electric energy is required to be consumed, and in addition, a plurality of air inlet intersections and air outlet intersections of the open air suspension system and the closed air suspension system are generally arranged, so that the problem of complex air paths of external communication exists.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an air suspension system, which can make the air inlet and the air outlet share one air channel interface, so that the complexity of the external communication air channel can be reduced, and the matching of the conventional single-inlet single-outlet air compression assembly can be realized, so that the integration cost of the air suspension system can be effectively reduced, the lifting of the open-type and closed-type hybrid air suspension system can be realized, and the consumption of the battery electric quantity can be reduced.

The utility model further proposes a vehicle.

An air suspension system according to an embodiment of the first aspect of the present utility model includes: a gas storage tank; an air compression assembly; an external air inlet and outlet assembly; a plurality of air spring assemblies; the air storage tank, the air compression assembly and the air spring assemblies are all connected with the same external air inlet and outlet assembly through the air distribution valve assembly.

Therefore, the air suspension system can enable air inlet and air exhaust to share one air passage interface, so that the complexity of external communication air passages can be reduced, the matching of the conventional single-inlet single-outlet air compression assembly can be realized, the integration cost of the air suspension system can be effectively reduced, in addition, the lifting of the open-type and closed-type hybrid air suspension system can be realized through the external integrated air distribution valve assembly, the lifting speed can be improved, and the consumption of battery electric quantity can be reduced.

According to some embodiments of the utility model, the air distribution valve assembly is disposed between the air reservoir, the air compression assembly, the external air intake and exhaust assembly, and the plurality of air spring assemblies, the air distribution valve assembly comprising: a first valve block, the first valve block comprising: the one-way valve is connected with the switch valve in parallel, the one-way valve allows gas to flow from one end of the one-way valve to the other end, one ends of the switch valve and the one-way valve are connected with the external air inlet and outlet assembly, and the other ends of the switch valve and the one-way valve are respectively connected with the gas storage tank, the air compression assembly and the air spring assemblies.

According to some embodiments of the utility model, the air distribution valve assembly further comprises: the second valves and the third valve group, the second valves are connected with a plurality of air spring assemblies, the first end of the third valves is connected with the second valves, the second end of the third valves is connected with one end of the air compression assembly, the third end of the third valves is connected with the other end of the air compression assembly, the fourth end of the third valves is connected with the air storage tank, and the other ends of the switch valves and the check valves are connected between the second end of the third valves and one end of the air compression assembly.

According to some embodiments of the utility model, the third valve group comprises: the air compressor comprises a first sub valve bank and a second sub valve bank, wherein the first end of the first sub valve bank is connected with the second valve bank, the second end of the first sub valve bank is connected with one end of the air compressor assembly, the third end of the first sub valve bank is connected with the other end of the air compressor assembly, the first end of the second sub valve bank is connected with the air storage tank, the second end of the second sub valve bank is connected with one end of the air compressor assembly, and the third end of the second sub valve bank is connected with the other end of the air compressor assembly.

According to some embodiments of the utility model, the first sub-valve group comprises: the air compressor comprises a first control valve and a second control valve, wherein one end of the first control valve is connected with one end of the second control valve and is connected with the second valve group, the other end of the first control valve is connected with one end of the air compression assembly, and the other end of the second control valve is connected with the other end of the air compression assembly; the second sub-valve group includes: the air compressor comprises a third control valve and a fourth control valve, wherein one end of the third control valve is connected with one end of the fourth control valve and is connected with the air storage tank, the other end of the third control valve is connected with one end of the air compression assembly, and the other end of the fourth control valve is connected with the other end of the air compression assembly.

According to some embodiments of the utility model, the air compression assembly comprises: one end of the compressor is connected with the second end of the third valve bank, and the other end of the compressor is connected with the third end of the third valve bank; and the reflux control valve is connected with the compressor in parallel.

According to some embodiments of the utility model, the air compression assembly further comprises: the dryer is connected between the other end of the compressor and the third end of the third valve group; and a backflow throttle valve connected in series with the backflow control valve and connected in parallel with the compressor.

According to some embodiments of the utility model, the air compression assembly comprises: and a pressure protection valve connected in parallel with the compressor to be turned on when the compressor discharge pressure is higher than a predetermined value.

According to some embodiments of the utility model, the air compression assembly further comprises: the device comprises a primary compression cylinder and a secondary compression cylinder, wherein the secondary compression cylinder is connected with the primary compression cylinder.

According to an embodiment of the second aspect of the present utility model, a vehicle includes: the air suspension system described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of an air suspension system according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of an air reservoir for inflating an air spring assembly with an air compression assembly in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic illustration of an air spring assembly exhausting air from an air reservoir through an air compression assembly in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic illustration of the inflation of an air reservoir by an air compression assembly with external air in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic illustration of the inflation of an air spring assembly by an air compression assembly with an external air in accordance with an embodiment of the present utility model;

FIG. 6 is a schematic illustration of an air spring assembly venting air to the outside through an air compression assembly in accordance with an embodiment of the present utility model;

FIG. 7 is a schematic illustration of the air reservoir being discharged to the outside through an air compression assembly in accordance with an embodiment of the present utility model;

FIG. 8 is a schematic illustration of a gas reservoir directly inflating an air spring assembly according to an embodiment of the present utility model;

FIG. 9 is a schematic illustration of an air spring assembly exhausting directly to the outside in accordance with an embodiment of the present utility model;

fig. 10 is a schematic view of the air tank directly exhausting to the outside according to the embodiment of the present utility model.

Reference numerals:

100. an air suspension system;

10. a gas storage tank;

20. an air compression assembly; 21. a compressor; 22. a reflux control valve; 23. a dryer; 24. a backflow throttle valve; 25. a pressure protection valve; 26. a first stage compression cylinder; 27. a secondary compression cylinder;

30. an external air inlet and outlet assembly;

40. an air spring assembly; 41. a left front air spring assembly; 42. a right front air spring assembly; 43. a left rear air spring assembly; 44. a right rear air spring assembly;

50. an air distribution valve assembly;

51. a second valve block; 511. a dispensing valve;

52. a third valve group; 521. a first sub-valve group; 5211. a first control valve; 5212. a second control valve;

522. a second sub-valve group; 5221. a third control valve; 5222. a fourth control valve; 53. a first valve block; 531. a one-way valve; 532. a switch valve;

60. a control unit; 61. a sensor; 62. a vehicle bus signal.

Detailed Description

Embodiments of the present utility model will be described in detail below, with reference to the accompanying drawings, which are exemplary.

An air suspension system 100 according to an embodiment of the present utility model is described below with reference to fig. 1-10.

As shown in fig. 1, an air suspension system 100 according to an embodiment of the first aspect of the present utility model includes: the air storage tank 10, the air compression assembly 20, the external air inlet and outlet assembly 30, the plurality of air spring assemblies 40 and the air distribution valve assembly 50 are all connected with the same external air inlet and outlet assembly 30 through the air distribution valve assembly 50.

Specifically, as shown in fig. 1, the air suspension system 100 can make the air spring assembly 40 rise through air inflation by integrating the air distribution valve assembly 50 on the outside, and can make the air spring assembly 40 fall through air exhaust, so that the air spring assembly 40 inflates or exhausts, and thus the lifting of the vehicle can be achieved, and the air spring assembly 40 inflates or exhausts through two ways, namely, through the air storage tank 10, and through the external air intake and exhaust assembly 30, particularly, when the battery of the vehicle is full, the lifting function of the closed principle can improve the lifting and falling speed of the air spring assembly 40, wherein the air spring assembly 40 inflates and exhausts through the external air intake and exhaust assembly 30, further, during the inflation process, the external air firstly passes through the external air intake and exhaust assembly 30 and then passes through the air compression assembly 20, and finally the air spring assembly 40 inflates through the air distribution valve assembly 50, so that the inflation speed of the air suspension system 100 can be improved, the external air intake and exhaust assembly 30 comprises an intake and an exhaust pipe and a filter, and the external air intake and exhaust assembly 30 can filter the inhaled air, thereby avoiding the damage to the internal components of the air suspension system 100. In the exhaust process, the air of the air spring assembly 40 passes through the air distribution valve assembly 50, then passes through the air compression assembly 20 and finally passes through the external air inlet and exhaust assembly 30, so that the exhaust speed of the air suspension system 100 can be improved, when the electric quantity of a vehicle battery is low, the air storage tank 10 can charge the air spring assembly 40 through an open principle, so that the vehicle can ascend, the air spring assembly 40 can directly exhaust through the external air inlet and exhaust assembly 30 after passing through the air distribution valve assembly 50, the vehicle can descend, and in the process of charging or exhausting, the air compression assembly 20 does not compress the air, thereby realizing lower electric quantity consumption.

In addition, the air storage tank 10, the air compression assembly 20 and the plurality of air spring assemblies 40 are all connected with the same external air inlet and outlet assembly 30 through the air distribution valve assembly 50, so that air inlet and air outlet of the air suspension system 100 share one air passage interface, the complexity of external communication air passages can be reduced, and matching of the conventional single-inlet and single-outlet air compression assembly 20 can be realized, thereby effectively reducing the integration cost of the air suspension system 100.

Therefore, the air suspension system 100 can make the air inlet and the air outlet share one air passage interface, so that the complexity of external communication air passages can be reduced, the matching of the conventional single-inlet single-outlet air compression assembly 20 can be realized, the integration cost of the air suspension system 100 can be effectively reduced, in addition, the lifting of the open and closed hybrid air suspension system 100 can be realized through the external integrated air distribution valve assembly 50, the lifting speed can be improved, and the consumption of battery electric quantity can be reduced.

According to some embodiments of the present utility model, as shown in fig. 1, an air distribution valve assembly 50 is provided between the air tank 10, the air compression assembly 20, the external intake and exhaust assembly 30, and the plurality of air spring assemblies 40, and the air distribution valve assembly 50 includes: first valve group 53, first valve group 53 includes: the check valve 531 and the switch valve 532, the check valve 531 and the switch valve 532 are connected in parallel, the check valve 531 allows gas to flow from one end of the check valve 531 to the other end, one end of the switch valve 532 and one end of the check valve 531 are connected with the external air intake and exhaust assembly 30, and the other end of the switch valve 532 and the check valve 531 are connected with the air tank 10, the air compression assembly 20 and the plurality of air spring assemblies 40, respectively. Wherein the first valve group 53 includes: the check valve 531 and the switch valve 532 are connected in parallel, one end of the check valve 531 and the switch valve 532 is connected with the external air inlet and outlet assembly 30, the other ends of the switch valve 532 and the check valve 531 are respectively connected with the air storage tank 10, the air compression assembly 20 and the air spring assemblies 40, thus, air inlet and air outlet of the air suspension system 100 are realized through the first valve group 53, the air inlet and the air outlet share an air passage interface, and the shared air inlet and outlet pipe is connected with the distribution valve assembly 50, so that the complexity of external communication air passage can be reduced, when the air inlet is carried out, the check valve 531 is opened, the switch valve 532 is closed, the external air inlet and outlet assembly 30 is communicated with the check valve 531, external air flows into the check valve 531 through the external air inlet and outlet assembly 30, then is filled into the air spring assembly 40 through the air compression assembly 20, when the air outlet is carried out, the check valve 532 is opened, and air in the air spring assembly 40 or the air storage tank 10 flows out from the external air inlet and outlet assembly 30 through the switch valve 532, thus matching of the conventional single air inlet and single outlet air compression assembly 20 can be realized, and the cost of the air suspension system 100 can be effectively reduced.

According to some embodiments of the utility model, as shown in FIG. 1, the air distribution valve assembly 50 further comprises: the second valve group 51 and the third valve group 52, the second valve group 51 is connected with the plurality of air spring assemblies 40, the first end of the third valve group 52 is connected with the second valve group 51, the second end of the third valve group 52 is connected with one end of the air compression assembly 20, the third end of the third valve group 52 is connected with the other end of the air compression assembly 20, the fourth end of the third valve group 52 is connected with the air storage tank, and the other ends of the switch valve 532 and the check valve 531 are connected between the second end of the third valve group 52 and one end of the air compression assembly 20. Wherein the second valve group 51 in the air distribution valve assembly 50 is selectively communicated with the plurality of air spring assemblies 40, the plurality of air spring assemblies 40 comprise a front left air spring assembly 41, a front right air spring assembly 42, a rear left air spring assembly 43 and a rear right air spring assembly 44 of the vehicle, the front left air spring assembly 41 and the front right air spring assembly 42 can control the height of the front side of the vehicle, the rear left air spring assembly 43 and the rear right air spring assembly 44 can control the height of the rear side of the vehicle, the air spring assembly 40 controlling the front side of the vehicle can be communicated with corresponding air passages in the second valve group 51, and the air spring assembly 40 controlling the rear side of the vehicle can be communicated with corresponding air passages in the second valve group 51. The second valve group 51 is connected with the first end of the third valve group 52, so that the air passage communication between the second valve group 51 and the third valve group 52 can be realized, the second end of the third valve group 52 is connected with one end of the air compression assembly 20, the third end of the third valve group 52 is connected with the other end of the air compression assembly 20, the air passage communication between the third valve group 52 and the air compression assembly 20 can be realized, the fourth end of the third valve group 52 is connected with the air storage tank 10, the air spring assembly 40 can be inflated and exhausted through the air storage tank 10, the other ends of the switch valve 532 and the check valve 531 are connected between the second end of the third valve group 52 and one end of the air compression assembly 20, so that the switch valve 532 and the check valve 531 can control the air passage on-off of the external air inlet and outlet assembly 30 and the third valve group 52 and the air compression assembly 20, the switch valve 532 and the check valve 531 enable the air inlet and the air outlet to share one air passage interface, so that the complexity of the external communication can be reduced, and the matching of the conventional single-inlet and single-outlet air compression assembly 20 can be realized.

According to an embodiment of the present utility model, as shown in fig. 1, the third valve group 52 includes: the first sub valve group 521 and the second sub valve group 522, the first end of the first sub valve group 521 is connected with the second valve group 51, the second end of the first sub valve group 521 is connected with one end of the air compression assembly 20, the first end of the second sub valve group 522 is connected with the air storage tank 10, the third end of the first sub valve group 521 is connected with the other end of the air compression assembly 20, the second end of the second sub valve group 522 is connected with one end of the air compression assembly 20, and the third end of the second sub valve group 522 is connected with the other end of the air compression assembly 20. Specifically, the first end of the first sub-valve group 521 in the third valve group 52 is connected to the second valve group 51, so that the air intake and exhaust of the air spring assembly 40 can be achieved through the communication between the second valve group 51 and the first sub-valve group 521, the first end of the first sub-valve group 521 is connected to the second valve group 51, and the third end of the first sub-valve group 521 is connected to the other end of the air compression assembly 20, so that the air can be inflated and exhausted through the first sub-valve group 521 after passing through the air compression assembly 20, and the inflation and exhaust speed of the air spring assembly 40 can be improved. The first end of the second sub-valve group 522 is connected to the air tank 10, the first end of the second sub-valve group 522 is the fourth end of the third valve group 52, the second end of the second sub-valve group 522 is connected to one end of the air compression assembly 20, and the third end of the second sub-valve group 522 is connected to the other end of the air compression assembly 20, so that the air in the air tank 10 can be inflated by the air spring assembly 40 after passing through the air compression assembly 20, and the air in the air spring assembly 40 can be discharged into the air tank 10 through the air compression assembly 20, the air tank 10 can be pre-inflated with air with a certain pressure in advance, and the air tank 10 itself has a sufficient volume, for example, 8L, so that the raising process of the vehicle can be accelerated, and the raising speed of the air suspension system 100 can be improved. The first end of the first sub-valve group 521 is the first end of the third valve group 52, the second end of the first sub-valve group 521 and the second end of the second sub-valve group 522 are the second end of the third valve group 52, the third end of the first sub-valve group 521 and the third end of the second sub-valve group 522 are the third end of the third valve group 52, and the first end of the second sub-valve group 522 is the fourth end of the third valve group 52.

According to some embodiments of the utility model, as shown in fig. 1, the first sub-valve group 521 includes: the first control valve 5211 and the second control valve 5212, one end of the first control valve 5211 is connected with one end of the second control valve 5212, one end of the first control valve 5211 and one end of the second control valve 5212 are connected with the second valve group 51, specifically, during the inflation process, gas passes through the first control valve 5211 and then passes through the second valve group 51 to inflate the air spring assembly 40, during the exhaustion process, gas in the air spring assembly 40 passes through the second valve group 51 and then passes through the second control valve 5212 to be exhausted, and furthermore, the other end of the first control valve 5211 is connected with one end of the air compression assembly 20, the other end of the second control valve 5212 is connected with the other end of the air compression assembly 20, and the second sub-valve group 522 comprises: the third control valve 5221 and the fourth control valve 5222, one end of the third control valve 5221 and one end of the fourth control valve 5222 are connected, and one end of the third control valve 5221 and one end of the fourth control valve 5222 are connected with the air tank 10, the other end of the third control valve 5221 is connected with one end of the air compression assembly 20, and the other end of the fourth control valve 5222 is connected with the other end of the air compression assembly 20, so that the air tank 10 can be inflated and deflated through the third control valve 5221 and the fourth control valve 5222.

According to an embodiment of the present utility model, as shown in fig. 4, the air compression assembly 20 includes: the compressor 21 and the return flow control valve 22, one end of the compressor 21 is connected to the second end of the third valve group 52, the other end of the compressor 21 is connected to the third end of the third valve group 52, and the return flow control valve 22 is connected in parallel with the compressor 21. Specifically, the air entering from one end of the compressor 21 may be pressurized after passing through the compressor 21, and the pressurized air is discharged from the other end of the compressor 21, so that the air suspension system 100 is lifted in a closed loop manner, during the process of inflating the air spring assembly 40 by the air tank 10, the air spring assembly 40 enters the air through one end of the compressor 21 after passing through the third valve group 52, then enters the third end of the third valve group 52 through the other end of the compressor 21, the air passing through the third valve group 52 may be inflated by passing through the second valve group 51 again, the inflation speed may also be increased, the backflow control valve 22 is connected in parallel with the compressor 21, and the backflow control valve 22 is set, so that excessive moisture may be prevented.

According to some embodiments of the present utility model, as shown in fig. 1, the air compression assembly 20 further includes: a dryer 23 and a return throttle valve 24, the dryer 23 being connected between the other end of the compressor 21 and the third end of the third valve block 52, the return throttle valve 24 being connected in series with the return control valve 22, and the return throttle valve 24 being connected in parallel with the return control valve 22 with the compressor 21. The dryer 23 dries the air entering from the other end of the compressor 21, the dried air flows into the third end of the third valve set 52, so that damage to the air suspension system 100 caused by humid air can be avoided, the backflow throttle valve 24 is connected with the backflow control valve 22 in series, after the backflow control valve 22 is opened, the air can flow back to one end of the compressor 21 from the other end of the compressor 21 through the dryer 23 and the backflow control valve 22, thus, moisture accumulated in the dryer 23 can be blown back in the process of drying air backflow, excessive moisture accumulation of the dryer 23 can be avoided, and the backflow air is throttled by the backflow throttle valve 24 through the backflow throttle valve 24 in the process of air backflow, so that damage to components of the dryer 23 caused by excessive air flow can be avoided.

Also, as shown in fig. 1, the second valve group 51 includes: the plurality of distribution valves 511, one end of the plurality of distribution valves 511 is connected to the plurality of air spring assemblies 40 in a one-to-one correspondence, and the other end of the plurality of distribution valves 511 is connected to the first end of the third valve group 52. One end of the plurality of distributing valves 511 in the second valve group 51 is selectively communicated with the front left air spring assembly 41, the front right air spring assembly 42, the rear left air spring assembly 43 and the rear right air spring assembly 44 of the vehicle, respectively, so that the lifting of the front left air spring assembly 41, the front right air spring assembly 42, the rear left air spring assembly 43 and the rear right air spring assembly 44 can be independently controlled, the other ends of the plurality of distributing valves 511 are connected with the first end of the third valve group 52, and the lifting of the air spring assembly 40 can be controlled by switching on and off of different air paths in the third valve group 52.

According to some embodiments of the present utility model, as shown in fig. 1, an air compression assembly 20 includes: a pressure protection valve 25, the pressure protection valve 25 being connected in parallel with the compressor 21 so as to be able to be turned on when the discharge pressure of the compressor 21 is higher than a predetermined value. Wherein, when the pressure of the compressed gas discharged from the compressor 21 is higher than a predetermined value, the high-pressure gas of the overpressure can be led to one end of the compressor 21 at a low pressure, i.e., an air inlet end, through the pressure protection valve 25, so that the high-pressure protection of the air suspension system 100 can be achieved.

According to some embodiments of the present utility model, as shown in fig. 1, the air compression assembly 20 further includes: a primary compression cylinder 26 and a secondary compression cylinder 27, the secondary compression cylinder 27 being connected to the primary compression cylinder 26. The air compression assembly 20 takes a primary compression cylinder 26 and a secondary compression cylinder 27 as an example, and may further be provided with a multi-stage compression cylinder or a device capable of compressing air, and after the air at the air inlet end is pressurized step by the primary compression cylinder 26 and the secondary compression cylinder 27, the air can be efficiently pressurized, so that the flow speed of the air can be increased.

The operation of the air suspension system 100 according to an embodiment of the present utility model is described in detail below with reference to fig. 2-10.

As shown in fig. 2, when the air suspension system 100 is raised in a closed loop manner, only the air spring assembly 40 on the front side of the vehicle is shown raised, the compressor 21 is in operation, and the open valve includes: the distribution valve 511 of the front left air spring assembly 41, the distribution valve 511 of the front right air spring assembly 42, the second control valve 5212, and the third control valve 5221 are all closed in the air distribution valve assembly 50.

As shown in fig. 3, when the air suspension system 100 is lowered in a closed-loop manner, only the air spring assembly 40 on the front side of the vehicle is lowered in the illustration, the compressor 21 is in an operating state, and the opened valve includes: the distribution valve 511 of the front left air spring assembly 41, the distribution valve 511 of the front right air spring assembly 42, the first control valve 5211 and the fourth control valve 5222 are all closed in the air distribution valve assembly 50.

As shown in fig. 4, when the air tank 10 is replenished with external air by the compressor 21, the compressor 21 is in an operating state, and the opened valves are the first valve group 53 and the fourth control valve 5222.

As shown in fig. 5, when the air suspension system 100 is raised by the compressor 21 by the outside air, the compressor 21 is in an operating state, and the opened valve includes: the first valve group 53, the second control valve 5212, the distribution valve 511 of the front left air spring assembly 41, and the distribution valve 511 of the front right air spring assembly 42 are all closed, and only the air spring assembly 40 on the front side of the vehicle is shown lifted.

As shown in fig. 6, when the air suspension system 100 is lowered by the high pressure gas in the air spring assembly 40, and simultaneously, the dryer 23 is in the back-blowing mode, the compressor 21 is in the stopped state, and the opened valve includes: the distribution valve 511 of the front left air spring assembly 41, the distribution valve 511 of the front right air spring assembly 42, the second control valve 5212, the return throttle valve 24, the return control valve 22, and the first valve group 53 are all closed, and only the air spring assembly 40 on the front side of the vehicle is shown.

As shown in fig. 7, the dryer 23 is in a back-blowing mode by using high-pressure gas from the gas tank 10, the compressor 21 is in a stopped state, and the opened valve includes: the fourth control valve 5222, the return throttle valve 24, the return control valve 22, and the first valve group 53 are all closed.

As shown in fig. 8, when the air suspension system 100 is raised in an open loop manner, only the air spring assembly 40 on the front side of the vehicle is shown raised, the compressor 21 is in a stopped state, and the opened valve includes: the third control valve 5221, the first control valve 5211, the distribution valve 511 of the front left air spring assembly 41, and the distribution valve 511 of the front right air spring assembly 42 are all closed.

As shown in fig. 9, the air in the air spring assembly 40 is directly discharged to the atmosphere without passing through the dryer 23, and a rapid descent is achieved, in which only the air spring assembly 40 on the front side of the vehicle is lowered, the compressor 21 is in a stopped state, and the opened valve includes: the distribution valve 511 of the front left air spring assembly 41, the distribution valve 511 of the front right air spring assembly 42, the first control valve 5211, and the first valve group 53 are all closed.

As shown in fig. 10, the gas in the gas tank 10 is discharged directly to the atmosphere without passing through the dryer 23, so that the gas in the gas tank 10 can be rapidly discharged, the compressor 21 is stopped, and the opened valve includes: the third control valve 5221, the first valve group 53 and the other valves are closed.

As shown in fig. 1 to 10, a vehicle according to an embodiment of a second aspect of the present utility model includes: the air suspension system 100 of the above embodiment. The upper end of the air spring assembly 40 is connected with the vehicle body, the lower end is connected with the suspension, and when the vehicle is lifted, the control unit 60 of the vehicle can control the opening and closing combination of the air distribution valve assembly 50 and the starting/stopping of the air compression assembly 20 according to the information of the vehicle bus signal 62, the external sensor 61 and the like, and the air is filled into or discharged from the air spring assembly 40, so that the lifting of the vehicle can be realized.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air suspension system (100), comprising:

a gas tank (10);

an air compression assembly (20);

an external intake and exhaust assembly (30);

a plurality of air spring assemblies (40);

the air storage tank (10), the air compression assembly (20) and the air spring assemblies (40) are all connected with the same external air inlet and outlet assembly (30) through the air distribution valve assembly (50).

2. The air suspension system (100) of claim 1 wherein said air distribution valve assembly (50) is disposed between said air reservoir (10), said air compression assembly (20), said external air intake and exhaust assembly (30) and said plurality of air spring assemblies (40), said air distribution valve assembly (50) comprising: a first valve group (53), the first valve group (53) comprising: check valve (531) and ooff valve (532), check valve (531) with ooff valve (532) parallel connection, check valve (531) allow gas follow one end flow direction other end of check valve (531), ooff valve (532) with one end of check valve (531) with outside advances exhaust assembly (30) and is connected, ooff valve (532) with the other end of check valve (531) respectively with gas holder (10), air compression assembly (20) and a plurality of air spring assembly (40) are connected.

3. The air suspension system (100) of claim 2 wherein said air distribution valve assembly (50) comprises: second valves (51) and third valves (52), second valves (51) are connected with a plurality of air spring assemblies (40), first ends of third valves (52) are connected with second valves (51), second ends of third valves (52) are connected with one end of air compression assembly (20), third ends of third valves (52) are connected with the other end of air compression assembly (20), fourth ends of third valves (52) are connected with air storage tank (10), and the other ends of switch valves (532) and check valves (531) are connected between the second ends of third valves (52) and one end of air compression assembly (20).

4. An air suspension system (100) according to claim 3, wherein said third valve group (52) comprises: the air compressor comprises a first sub valve group (521) and a second sub valve group (522), wherein the first end of the first sub valve group (521) is connected with the second valve group (51), the second end of the first sub valve group (521) is connected with one end of the air compressor assembly (20), the third end of the first sub valve group (521) is connected with the other end of the air compressor assembly (20), the first end of the second sub valve group (522) is connected with the air storage tank (10), the second end of the second sub valve group (522) is connected with one end of the air compressor assembly (20), and the third end of the second sub valve group (522) is connected with the other end of the air compressor assembly (20).

5. The air suspension system (100) of claim 4 wherein said first sub-valve group (521) comprises: a first control valve (5211) and a second control valve (5212), wherein one end of the first control valve (5211) is connected with one end of the second control valve (5212) and is connected with the second valve group (51), the other end of the first control valve (5211) is connected with one end of the air compression assembly (20), and the other end of the second control valve (5212) is connected with the other end of the air compression assembly (20);

the second sub-valve group (522) comprises: third control valve (5221) and fourth control valve (5222), the one end of third control valve (5221) with the one end of fourth control valve (5222) is connected and with gas holder (10), the other end of third control valve (5221) is connected with one end of air compression assembly (20), the other end of fourth control valve (5222) is connected with the other end of air compression assembly (20).

6. An air suspension system (100) according to claim 3, wherein said air compression assembly (20) comprises:

a compressor (21), one end of the compressor (21) is connected with the second end of the third valve group (52), and the other end of the compressor (21) is connected with the third end of the third valve group (52);

-a return control valve (22), said return control valve (22) being connected in parallel with said compressor (21).

7. The air suspension system (100) of claim 6 wherein said air compression assembly (20) further comprises:

-a dryer (23), said dryer (23) being connected between the other end of said compressor (21) and a third end of said third valve group (52);

-a backflow throttle valve (24), said backflow throttle valve (24) being connected in series with said backflow control valve (22) and in parallel with said compressor (21).

8. The air suspension system (100) of claim 6 wherein said air compression assembly (20) comprises:

-a pressure protection valve (25), said pressure protection valve (25) being connected in parallel with said compressor (21) to conduct when the discharge pressure of said compressor (21) is higher than a predetermined value.

9. The air suspension system (100) of claim 6 wherein said air compression assembly (20) further comprises: a primary compression cylinder (26) and a secondary compression cylinder (27), the secondary compression cylinder (27) being connected to the primary compression cylinder (26).

10. A vehicle, characterized by comprising: the air suspension system (100) of any one of claims 1-9.