Vehicle pneumatic system and vehicle

Abstract

The utility model provides a pneumatic system for a vehicle and the vehicle, the pneumatic system for the vehicle comprises a suspension pneumatic subsystem, the suspension pneumatic subsystem is internally provided with an air spring, and the air spring can be pneumatically adjusted; the pneumatic execution subsystem is internally provided with a pneumatic execution unit, and the pneumatic execution unit can be pneumatically adjusted; the gas storage subsystem can be used for storing a gas medium; and the pump subsystem is used for driving a gas medium to flow, and the pump subsystem is connected with the suspension pneumatic subsystem, the pneumatic execution subsystem and the gas storage subsystem. Therefore, the gas storage subsystem can recycle the gas medium in the pneumatic execution subsystem, the suspension pneumatic subsystem can achieve pneumatic adjustment through the gas medium in the pneumatic execution subsystem, and therefore the vehicle pneumatic system can achieve recycling of the gas medium, and the utilization rate of the gas medium is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle pneumatic system and a vehicle. BACKGROUND

[0002] At present, with the development of automobile industry technology, vehicles have more extended functions in addition to basic driving and braking, such as seat wing support, seat massage, external device (tire, air mattress) air supply, etc.

[0003] In the related art, in order to realize various pneumatic functions of the vehicle, a plurality of groups of independent air storage and supply devices are usually arranged in the vehicle, so that the number of devices in the vehicle is large, and the air medium recycling in the above-mentioned extended functions cannot be realized, resulting in low air utilization rate. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application aims to provide a vehicle pneumatic system, in which various functions of multiple subsystems can be realized, and the integration degree is high.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A vehicle pneumatic system, comprising: a suspension pneumatic subsystem, wherein an air spring is arranged in the suspension pneumatic subsystem, and the air spring is pneumatically adjustable; a pneumatic execution subsystem, wherein a pneumatic execution unit is arranged in the pneumatic execution subsystem, and the pneumatic execution unit is pneumatically adjustable; an air storage subsystem, which is used for storing air medium; and a pump subsystem, which is used for driving the flow of air medium, and is connected with the suspension pneumatic subsystem, the pneumatic execution subsystem and the air storage subsystem.

[0007] The pump subsystem is used for supplying air medium to the pneumatic execution subsystem, the air storage subsystem is used for supplying air medium to the pneumatic execution subsystem through the pump subsystem, the air storage subsystem is used for directly supplying air medium to the pneumatic execution subsystem, the pump subsystem is used for supplying air medium to the air storage subsystem, the pump subsystem is used for supplying air medium to the suspension pneumatic subsystem, the air storage subsystem is used for supplying air medium to the suspension pneumatic subsystem through the pump subsystem, the pneumatic execution subsystem is used for supplying air medium to the air storage subsystem, and the pneumatic execution subsystem is used for supplying air medium to the suspension pneumatic subsystem through the pump subsystem.

[0008] According to some embodiments of the present application, the vehicle pneumatic system further comprises a pressure detection device, which is connected between the suspension pneumatic subsystem and the pneumatic execution subsystem, and which is used to detect the gas pressure of the suspension pneumatic subsystem and the pneumatic execution subsystem respectively.

[0009] According to some embodiments of the present application, a first control valve is arranged between the pressure detection device and the suspension pneumatic subsystem, and is used to control the on-off state between the pressure detection device and the suspension pneumatic subsystem; a second control valve is arranged between the pressure detection device and the pneumatic execution subsystem, and is used to control the on-off state between the pressure detection device and the pneumatic execution subsystem.

[0010] According to some embodiments of the present application, a third control valve is arranged between the gas outlet side of the pump subsystem and the suspension pneumatic subsystem, and is used to control the on-off state between the gas outlet side of the pump subsystem and the suspension pneumatic subsystem; a fourth control valve is arranged between the gas storage subsystem and the gas inlet side of the pump subsystem, and is used to control the on-off state between the gas storage subsystem and the gas inlet side of the pump subsystem; a fifth control valve is arranged between the gas storage subsystem and the pneumatic execution subsystem, and between the gas storage subsystem and the gas outlet side of the pump subsystem, and is used to control the on-off state between the gas storage subsystem and the pneumatic execution subsystem, and between the gas storage subsystem and the gas outlet side of the pump subsystem.

[0011] According to some embodiments of the present application, the vehicle pneumatic system further comprises a drying branch, which is connected between the gas outlet side of the pump subsystem and the third control valve, and between the gas outlet side of the pump subsystem and the fifth control valve, and which is provided with a dryer, which is used to dry the gas medium flowing through the drying branch.

[0012] According to some embodiments of the present application, a sixth control valve is arranged between the gas outlet side of the pump subsystem and the pneumatic execution subsystem, and is used to control the on-off state between the gas outlet side of the pump subsystem and the pneumatic execution subsystem; the drying branch is provided with a seventh control valve, which is located between the gas outlet side of the pump subsystem and the dryer, and between the sixth control valve and the dryer, and is used to control the on-off state between the pneumatic execution subsystem and the drying branch, and between the gas outlet side of the pump subsystem and the drying branch.

[0013] According to some embodiments of the present application, the vehicle pneumatic system comprises: a first exhaust branch connected between the gas outlet side of the pump subsystem and the sixth control valve, between the gas outlet side of the pump subsystem and the seventh control valve, and used for exhausting the gas medium in the vehicle pneumatic system; and / or a second exhaust branch connected between the drying branch and the third control valve, between the drying branch and the fifth control valve, and used for exhausting the gas medium in the vehicle pneumatic system.

[0014] According to some embodiments of the present application, an eighth control valve is arranged between the pneumatic execution subsystem and the gas inlet side of the pump subsystem, and is used for controlling the on-off state of the pneumatic execution subsystem and the gas inlet side of the pump subsystem.

[0015] According to some embodiments of the present application, the pump subsystem comprises: a pump body used for compressing the gas medium; a pressure limiting branch arranged in parallel with the pump body, and used for pressure limiting protection of the pump subsystem; and a gas inlet branch connected between the gas inlet side of the pump body and a gas source.

[0016] Compared with the prior art, the vehicle pneumatic system described in the present application has the following advantages:

[0017] (1) The vehicle pneumatic system integrates multiple subsystems, and the height of the suspension can be adjusted by charging and discharging the suspension pneumatic subsystem, the pneumatic function of the pneumatic execution unit can be realized by charging and discharging the pneumatic execution subsystem, and the gas medium can be stored and recycled by the gas storage subsystem.

[0018] (2) The vehicle pneumatic system has multiple working conditions, can realize the recycling of the gas medium in the pneumatic execution subsystem, can apply the gas medium in the pneumatic execution subsystem to the suspension pneumatic subsystem after being compressed by the pump subsystem, and can store the gas medium in the pneumatic execution subsystem in the gas storage subsystem after being compressed by the pump subsystem, thereby improving the utilization rate of the gas medium in the vehicle pneumatic system.

[0019] (3) In the vehicle pneumatic system, the gas medium is supplied to the pneumatic execution subsystem in multiple ways, so that the pneumatic execution subsystem can be supplied with gas medium of multiple humidities. Among them, the gas medium in the external gas source is filtered by the pump subsystem and directly supplied to the side of the pneumatic execution subsystem, so that high-pressure gas medium without humidity requirement can be provided to the pneumatic execution unit; the gas medium in the gas storage subsystem can also be supplied to the side of the pneumatic execution subsystem by the pump subsystem, so that dry gas medium can be provided to the pneumatic execution unit, which can meet the use requirements of the pneumatic execution unit which requires gas medium humidity (i.e. dry gas).

[0020] (4) The pressure detection device can detect the pressure in the pneumatic actuating subsystem and the suspension pneumatic subsystem respectively, which helps to reduce the number of components in the vehicle pneumatic system, improve the system integration, and reduce the cost while optimizing the volume of the vehicle pneumatic system (i.e. reduce the volume).

[0021] Another purpose of the present application is to provide a vehicle.

[0022] To achieve the above-mentioned purposes, the technical scheme of the present application is as follows:

[0023] A vehicle, comprising the vehicle pneumatic system described above.

[0024] The vehicle has the same advantages as the vehicle pneumatic system described above compared with the prior art, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for explanation. The drawings illustrate an exemplary embodiment of the present application and, together with the description, serve to explain the present application. In the drawings:

[0026] Figure 1 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0028] Figure 3 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0029] Figure 4 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0030] Figure 5 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0031] Figure 6 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0032] Figure 7 A schematic diagram of the vehicle pneumatic system according to an embodiment of the present application, showing the pump subsystem supplying the gas medium to the pneumatic actuating subsystem;

[0033] Figure 8 A schematic diagram of a regenerator of a desiccant in a vehicle pneumatic system according to an embodiment of the present application;

[0034] Figure 9 A schematic diagram of a gas medium supplied by a pneumatic actuating subsystem to a suspension pneumatic subsystem via a pump subsystem in a vehicle pneumatic system according to an embodiment of the present application;

[0035] Figure 10 A schematic diagram of a gas medium supplied by a pneumatic actuating subsystem to a suspension pneumatic subsystem via a pump subsystem in a vehicle pneumatic system according to an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0037] A vehicle pneumatic system 100 according to an embodiment of the present application;

[0038] A suspension pneumatic subsystem 1; an air spring 11; an air spring valve 12;

[0039] A pneumatic actuating subsystem 2; a gas storage subsystem 3;

[0040] A pump subsystem 4; a pump body 41; a pressure limiting branch 42; a pressure limiting valve 421; an air inlet branch 43; an air filter 431; a check valve 432; a pressure detecting device 5;

[0041] A first control valve 61; a second control valve 62; a third control valve 63; a fourth control valve 64; a fifth control valve 65; a sixth control valve 66; a seventh control valve 67; an eighth control valve 68; a ninth control valve 69;

[0042] A desiccant branch 7; a desiccator 71; a check throttle valve 72;

[0043] A first exhaust branch 81; a first exhaust valve 811; a second exhaust branch 82; a second exhaust valve 821. DETAILED DESCRIPTION

[0044] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] The vehicle pneumatic system 100 according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings. Figures 1-10 The vehicle pneumatic system 100 according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0046] Referring to FIG. 1, Figure 1 As shown in FIG. 1, the vehicle pneumatic system 100 includes a suspension pneumatic subsystem 1, a pneumatic actuating subsystem 2, a gas storage subsystem 3 and a pump subsystem 4.

[0047] As shown in FIG. 1, Figure 1As shown, the air spring 11 is arranged in the suspension pneumatic subsystem 1, and the air spring 11 can be pneumatically adjusted to realize the lifting adjustment function at the suspension, for example, by supplying the gas medium into the air spring 11, the lifting adjustment at the suspension can be realized; by discharging the gas medium in the air spring 11, the lowering adjustment at the suspension can be realized. The gas medium can be air.

[0048] The pneumatic execution subsystem 2 is provided with a pneumatic execution unit, and the pneumatic execution unit can be pneumatically adjusted to realize the function adjustment of the pneumatic execution unit by the gas medium. The pneumatic execution subsystem 2 can be provided with a plurality of pneumatic execution units, and each pneumatic execution unit can work independently. The pneumatic execution unit can be constructed as a pneumatic execution mechanism for inflating and deflating the tire and the inflatable seat cushion, so as to pneumatically adjust the pneumatic execution device such as the tire and the inflatable seat cushion by the pneumatic execution unit.

[0049] The gas storage subsystem 3 can be used for storing the gas medium, and the gas storage subsystem 3 can serve as a gas source to supply the gas medium to other subsystems (such as the pneumatic execution subsystem 2 and the suspension pneumatic subsystem 1) in the vehicle pneumatic system 100.

[0050] The pump subsystem 4 can be used for driving the flow of the gas medium, and the gas medium pressurized by the pump subsystem 4 can be delivered to other subsystems in the vehicle pneumatic system 100. The pump subsystem 4 is connected with the suspension pneumatic subsystem 1, the pneumatic execution subsystem 2 and the gas storage subsystem 3.

[0051] In the vehicle pneumatic system 100 of the present application, at least the following working conditions are included:

[0052] Referring to Figure 2 , the pump subsystem 4 can be used for supplying the gas medium to the pneumatic execution subsystem 2. In this working condition, the pump subsystem 4 can obtain the gas medium from the gas source (such as the external environment), and supply the gas medium to the side of the pneumatic execution subsystem 2.

[0053] Referring to Figure 3 , the gas storage subsystem 3 can supply the gas medium to the pneumatic execution subsystem 2 through the pump subsystem 4. In this working condition, the gas storage subsystem 3 supplies the gas medium to the pump subsystem 4, and the pump subsystem 4 supplies the gas medium to the side of the pneumatic execution subsystem 2.

[0054] Referring to Figure 4 , the gas storage subsystem 3 can directly supply the gas medium to the pneumatic execution subsystem 2. In this working condition, the gas medium of the gas storage subsystem 3 is directly delivered to the pneumatic execution subsystem 2 without passing through the pump subsystem 4.

[0055] Referring to Figure 5, the pump subsystem 4 can supply the gas medium to the gas storage subsystem 3, in this working condition, the pump subsystem 4 can obtain the gas medium from the gas source (such as the external environment) and supply the gas medium to the side of the gas storage subsystem 3, realizing the function of the vehicle pneumatic system 100 supplementing the gas medium to the gas storage subsystem 3, and being capable of increasing the gas pressure in the gas storage subsystem 3, so as to supply the gas medium to the side of the pneumatic actuating subsystem 2 through the gas storage subsystem 3.

[0056] With reference to Figure 6 , the pump subsystem 4 can supply the gas medium to the suspension pneumatic subsystem 1, in this working condition, the pump subsystem 4 can obtain the gas medium from the gas source (such as the external environment) and supply the gas medium to the side of the suspension pneumatic subsystem 1.

[0057] With reference to Figure 7 , the gas storage subsystem 3 can supply the gas medium to the suspension pneumatic subsystem 1 through the pump subsystem 4, in this working condition, the gas storage subsystem 3 supplies the gas medium to the pump subsystem 4, and the pump subsystem 4 supplies the gas medium to the side of the suspension pneumatic subsystem 1.

[0058] With reference to Figure 9 , the pneumatic actuating subsystem 2 can supply the gas medium to the gas storage subsystem 3, in this working condition, the gas medium in the pneumatic actuating subsystem 2 can flow back to the pump subsystem 4, and the pump subsystem 4 supplies the gas medium to the side of the gas storage subsystem 3, thereby realizing the recycling of the gas medium in the pneumatic actuating subsystem 2.

[0059] It can be understood that when the gas pressure in the pneumatic actuating subsystem 2 is greater than the gas pressure in the gas storage subsystem 3, the pneumatic actuating subsystem 2 can also directly supply the gas medium to the side of the gas storage subsystem 3, that is, the gas medium does not need to be pressurized by the pump subsystem 4.

[0060] With reference to Figure 10 , the pneumatic actuating subsystem 2 can supply the gas medium to the suspension pneumatic subsystem 1 through the pump subsystem 4, in this working condition, the gas medium in the pneumatic actuating subsystem 2 can flow back to the pump subsystem 4, and the pump subsystem 4 supplies the gas medium to the side of the suspension pneumatic subsystem 1.

[0061] Therefore, in the vehicle pneumatic system 100 of the present application, the pneumatic actuating function of the pneumatic actuating subsystem 2 and the pneumatic adjustment of the suspension pneumatic subsystem 1 can be realized, and the recycling of the gas medium used in the pneumatic actuating subsystem 2 can be realized, such as recycling the gas medium in the pneumatic actuating subsystem 2 to the gas storage subsystem 3 to realize the recycling of the gas medium, and recycling the gas medium in the pneumatic actuating subsystem 2 and supplying it to the side of the suspension pneumatic subsystem 1 to realize the gas adjustment at the suspension pneumatic subsystem 1.

[0062] It should be noted that, at present, with the development of automobile industry technology, the vehicle has more extended functions in addition to the basic driving and braking, such as seat wing support, seat massage, and air supply for external devices (tires, air mattresses), etc.

[0063] Among them, in the seat wing support, a separate air tank and air compressor are needed to supply air to both sides of the seat through the air compressor and the air tank when the vehicle turns or drives at high speed, so that the seat wing support can effectively reduce the displacement of the passenger under the action of the lateral force of the vehicle, and increase the safety and comfort of the driver or passenger; in the process of supplying air to the external device, the external air supply device is generally used to supply air to the external device, and the air supply device is a separate device (i.e. not part of the vehicle) relative to the vehicle.

[0064] In the related art, in order to realize various pneumatic functions of the vehicle, multiple sets of independent air storage and supply devices are usually arranged in the vehicle, resulting in a large number of devices in the vehicle, and the air medium cannot be recycled in the above-mentioned extended functions, resulting in low utilization rate of the air.

[0065] In the vehicle pneumatic system 100 of the embodiments of the present application, multiple subsystems such as the suspension pneumatic subsystem 1, the pneumatic execution subsystem 2, the air storage subsystem 3, and the pump subsystem 4 are integrated, the suspension pneumatic subsystem 1 can realize height adjustment at the suspension, the pneumatic execution subsystem 2 can realize pneumatic adjustment of the pneumatic devices in the vehicle, the air storage subsystem 3 has the functions of storing and supplying air medium, and the pump subsystem 4 can compress the air medium to increase the pressure of the air medium. In the present application, the air storage subsystem 3 can recycle the air medium in the pneumatic execution subsystem 2, and the suspension pneumatic subsystem 1 can realize pneumatic adjustment by using the air medium in the pneumatic execution subsystem 2, so that the vehicle pneumatic system 100 can realize the recycling of the air medium and improve the utilization rate of the air medium.

[0066] As shown in Figure 1 In some embodiments of the present application, the vehicle pneumatic system 100 further includes a pressure detection device 5, the pressure detection device 5 is connected between the suspension pneumatic subsystem 1 and the pneumatic execution subsystem 2, and the pressure detection device 5 can be used to detect the air pressure of the suspension pneumatic subsystem 1 and the pneumatic execution subsystem 2, respectively. Among them, the pressure detection device 5 can be configured as a pressure sensor.

[0067] In the vehicle pneumatic system 100 of the embodiments of the present application, the pressure detection device 5 can selectively access the suspension pneumatic subsystem 1 or the pneumatic execution subsystem 2 according to the pressure detection requirement. As shown in Figure 4 When the pressure detection device 5 accesses the pneumatic execution subsystem 2, the pressure detection device 5 can detect the air pressure in the pneumatic execution subsystem 2; as shown in Figure 7As shown, when the pressure detection device 5 is connected to the suspension pneumatic subsystem 1, the pressure detection device 5 can detect the gas pressure in the suspension pneumatic subsystem 1.

[0068] It should be noted that the pneumatic actuation subsystem 2 can be equipped with multiple pneumatic actuation units, and the pressure detection device 5 can be used to detect the gas pressure of the pneumatic actuation units connected and cooperating with it; the suspension pneumatic subsystem 1 can be equipped with multiple air springs 11, and the multiple air springs 11 can be arranged in parallel. The pressure detection device 5 can be arranged in the main circuit of the suspension pneumatic subsystem 1, so that the pressure detection device 5 can detect the gas pressure at the air spring 11 arranged in each branch circuit. The connection state of the pressure detection device 5 in the vehicle pneumatic system 100 can be controlled according to the detection requirements.

[0069] Furthermore, in the suspension pneumatic subsystem 1, each air spring 11 may be provided with a corresponding air spring valve 12 to control the on / off state of the branch where the air spring 11 is located.

[0070] like Figure 1 As shown, in some embodiments of this application, a first control valve 61 is provided between the pressure detection device 5 and the suspension pneumatic subsystem 1. The first control valve 61 is used to control the on / off state between the pressure detection device 5 and the suspension pneumatic subsystem 1. A second control valve 62 is provided between the pressure detection device 5 and the pneumatic actuation subsystem 2. The second control valve 62 is used to control the on / off state between the pressure detection device 5 and the pneumatic actuation subsystem 2. Thus, by controlling the opening and closing states of the first control valve 61 and the second control valve 62, the connection state of the pressure detection device 5 in the vehicle pneumatic system 100 can be adjusted, that is, the pressure detection device 5 is connected to the suspension pneumatic subsystem 1 and the pressure detection device 5 is connected to the pneumatic actuation subsystem 2. Therefore, the same pressure detection device 5 can be used to perform air pressure detection on both the suspension pneumatic subsystem 1 and the pneumatic actuation subsystem 2, which can meet the air pressure detection requirements of the pneumatic actuation system and the suspension pneumatic subsystem 1. It can also reduce the number of pressure detection devices 5 in the vehicle pneumatic system 100, improve the integration of the vehicle pneumatic system 100 and help reduce costs.

[0071] In some embodiments of this application, a third control valve 63 is provided between the air outlet side of the pump subsystem 4 and the suspension pneumatic subsystem 1. The third control valve 63 is used to control the on / off state between the air outlet side of the pump subsystem 4 and the suspension pneumatic subsystem 1. A fourth control valve 64 is provided between the air storage subsystem 3 and the air intake side of the pump subsystem 4. The fourth control valve 64 is used to control the on / off state between the air storage subsystem 3 and the air intake side of the pump system 4. A fifth control valve 65 is provided between the air storage subsystem 3 and the pneumatic actuation subsystem 2, and between the air storage subsystem 3 and the air outlet side of the pump system 4. The fifth control valve 65 is used to control the on / off state between the air storage subsystem 3 and the pneumatic actuation subsystem 2, and between the air storage subsystem 3 and the air outlet side of the pump system 4.

[0072] Reference Figure 6 and Figure 7 As shown, when the third control valve 63 connects the air outlet side of the pump subsystem 4 to the suspension pneumatic subsystem 1, the gas medium discharged through the air outlet side of the pump subsystem 4 can be supplied to the suspension pneumatic subsystem 1 through the third control valve 63, thereby supplying gas medium to the air spring 11 in the suspension pneumatic subsystem 1.

[0073] Reference Figure 3 and Figure 7 As shown, when the fourth control valve 64 connects the air intake side of the air storage subsystem 3 and the pump subsystem 4, the gas medium in the air storage subsystem 3 can be supplied to the pump subsystem 4 through the fourth control valve 64. The pump subsystem 4 can then compress the gas medium and supply it to other subsystems (such as the pneumatic actuator subsystem 2 and the suspension pneumatic subsystem 1). (Refer to...) Figure 4 and Figure 5 As shown, when there is no need to supply gas medium to the pump subsystem 4 through the gas storage subsystem 3, the fourth control valve 64 is closed to disconnect the gas inlet side of the pump subsystem 4 from the gas storage subsystem 3.

[0074] Reference Figure 4 As shown, when the fifth control valve 65 is opened, the gas storage subsystem 3 and the pneumatic actuation subsystem 2 can be connected. At this time, gas medium can be supplied to the pneumatic actuation subsystem 2 through the gas storage subsystem 3; refer to Figure 5 and Figure 9 As shown, when the fifth control valve 65 is opened, the gas storage subsystem 3 and the gas outlet side of the pump subsystem 4 can be connected. The gas medium discharged through the pump subsystem 4 can enter the gas storage subsystem 3 after flowing through the fifth control valve 65, thereby supplying gas medium to the gas storage subsystem 3 and replenishing the gas medium to the gas storage subsystem 3.

[0075] Therefore, by controlling the valve structure (such as the third control valve 63, the fourth control valve 64 and the fifth control valve 65 mentioned above), the on / off states between multiple subsystems can be switched to achieve various operating conditions of the vehicle pneumatic system 100.

[0076] In further embodiments of the present application, the vehicle pneumatic system 100 further comprises a drying branch 7, which is connected between the outlet side of the pump subsystem 4 and the third control valve 63, and between the outlet side of the pump subsystem 4 and the fifth control valve 65, and the drying branch 7 is provided with a dryer 71, which can be used for drying treatment of the gas medium flowing through the drying branch 7.

[0077] The gas medium discharged from the outlet side of the pump subsystem 4 can flow to the third control valve 63 and the fifth control valve 65 after flowing through the drying branch 7, so that the dried gas medium can be supplied to the side of the suspension pneumatic subsystem 1 or the gas storage subsystem 3.

[0078] Referring to FIG. 1, when the third control valve 63 communicates the suspension pneumatic subsystem 1 with the drying branch 7, the dried gas medium can be supplied to the side of the suspension pneumatic subsystem 1. Figure 10 Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7. Figure 5 Figure 9 Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7.

[0079] Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7. Figure 5 Figure 9 Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7. Figure 9 Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7.

[0080] Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7. Figure 8 Referring to FIG. 1, when the fifth control valve 65 communicates the gas storage subsystem 3 with the drying branch 7, the gas medium discharged from the pump subsystem 4 can be supplied to the side of the gas storage subsystem 3 after being dried through the drying branch 7.

[0081] In some embodiments of the present application, a one-way throttle valve 72 is provided on the drying branch 7, which can be used to limit the flow direction of the gas medium.

[0082] ​​In some embodiments of the present application, a sixth control valve 66 is arranged between the outlet side of the pump subsystem 4 and the pneumatic execution subsystem 2, and is used to control the on-off state between the outlet side of the pump subsystem 4 and the pneumatic execution subsystem 2.

[0083] As shown in Figure 2 and Figure 3 , when the outlet side of the pump subsystem 4 is communicated with the pneumatic execution subsystem 2 through the sixth control valve 66, the gas medium discharged from the outlet side of the pump subsystem 4 can be supplied to the side of the pneumatic execution subsystem 2, so as to quickly supply the gas medium to the pneumatic execution subsystem 2.

[0084] Referring to Figure 2 , when the inlet side of the pump subsystem 4 is connected to the external gas source, the gas medium in the external environment can be supplied to the side of the pneumatic execution subsystem 2, so as to realize the pneumatic function at the pneumatic execution subsystem 2; referring to Figure 3 , when the inlet side of the pump subsystem 4 is connected to the gas storage subsystem 3, the gas medium in the gas storage subsystem 3 can be supplied to the side of the pneumatic execution subsystem 2, so as to realize the pneumatic function of the pneumatic execution subsystem 2.

[0085] As shown in Figure 1 , in some embodiments of the present application, a seventh control valve 67 is arranged on the drying branch 7, and the seventh control valve 67 is located between the outlet side of the pump subsystem 4 and the dryer 71, between the sixth control valve 66 and the dryer 71, and is used to control the on-off state between the pneumatic execution subsystem 2 and the drying branch 7, and between the outlet side of the pump subsystem 4 and the drying branch 7.

[0086] As shown in Figure 2 and Figure 3 , when the seventh control valve 67 is in a closed state and the sixth control valve 66 is in an open state, the gas medium discharged from the outlet side of the pump subsystem 4 cannot enter the drying branch 7, that is, cannot flow through the dryer 71, so as to ensure the effect of the pump subsystem 4 supplying the gas medium to the side of the pneumatic execution subsystem 2; as shown in Figure 4 , when the fifth control valve 65, the sixth control valve 66 and the seventh control valve 67 are all in an open state, the gas medium in the gas storage subsystem 3 can directly enter the pneumatic execution subsystem 2 after sequentially passing through the fifth control valve 65, the seventh control valve 67 and the sixth control valve 66, so as to supply the gas medium from the gas storage subsystem 3 to the pneumatic execution subsystem 2; as shown in Figure 9 and Figure 10 , when the sixth control valve 66 is in a closed state and the seventh control valve 67 is in an open state, the gas medium in the pneumatic execution subsystem 2 can be discharged to the drying branch 7 through the outlet side of the pump subsystem 4, and the dried gas medium can be selectively supplied to the side of the suspension pneumatic subsystem 1 or the gas storage subsystem 3.

[0087] As shown in Figure 1 In some embodiments of the present application, the vehicle pneumatic system 100 comprises a first exhaust branch 81 connected between the outlet side of the pump subsystem 4 and the sixth control valve 66, and between the outlet side of the pump subsystem 4 and the seventh control valve 67, and the first exhaust branch 81 is used for exhausting the gas medium in the vehicle pneumatic system 100.

[0088] Referring to Figure 8 As shown in FIG. 6, when the vehicle pneumatic system 100 is in the regenerative desiccant working condition, the sixth control valve 66 is in the closed state, and the third control valve 63 and the seventh control valve 67 are both in the open state, the gas medium in the suspension pneumatic subsystem 1 is exhausted through the desiccant branch 7 into the first exhaust branch 81, so that the gas medium can be exhausted from the vehicle pneumatic system 100 through the first exhaust branch 81.

[0089] The first exhaust branch 81 is provided with a first exhaust valve 811, and the on-off state of the first exhaust branch 81 can be controlled by controlling the first exhaust valve 811.

[0090] As shown in Figure 1 In some embodiments of the present application, the vehicle pneumatic system 100 comprises a second exhaust branch 82 connected between the desiccant branch 7 and the third control valve 63, and between the desiccant branch 7 and the fifth control valve 65, and the second exhaust branch 82 is used for exhausting the gas medium in the vehicle pneumatic system 100.

[0091] The second exhaust branch 82 is provided with a second exhaust valve 821, and the on-off state of the second exhaust branch 82 can be controlled by controlling the second exhaust valve 821. The second exhaust valve 821 can be configured as a manual valve, so that the user can manually operate to exhaust the gas medium from the vehicle pneumatic system 100.

[0092] It can be understood that when the third control valve 63 and the second exhaust valve 821 are opened, the gas medium in the suspension pneumatic subsystem 1 can be exhausted through the second exhaust branch 82; when the fifth control valve 65 and the second exhaust valve 821 are opened, the gas medium in the gas storage subsystem 3 can be exhausted through the second exhaust branch 82.

[0093] The vehicle pneumatic system 100 can be simultaneously provided with the first exhaust branch 81 and the second exhaust branch 82 described above, so that the vehicle pneumatic system 100 can realize multiple exhaust modes to exhaust the gas medium from the vehicle pneumatic system 100.

[0094] As shown in Figure 1As shown, in some embodiments of this application, an eighth control valve 68 is provided between the air intake side of the pneumatic actuator subsystem 2 and the pump subsystem 4. The eighth control valve 68 is used to control the on / off state of the air intake side of the pneumatic actuator subsystem 2 and the pump subsystem 4.

[0095] Reference Figure 9 and Figure 10 As shown, when the eighth control valve 68 is in the open state, the gas medium in the pneumatic actuator subsystem 2 can flow to the air inlet side of the pump subsystem 4. Thus, the gas medium in the pneumatic actuator subsystem 2 is compressed by the pump subsystem 4 and then transported to the gas storage subsystem 3 or the suspension pneumatic subsystem 1, thereby realizing the recovery and reuse of the gas medium in the pneumatic actuator subsystem 2.

[0096] like Figure 1 As shown, in some embodiments of this application, the vehicle pneumatic system 100 is further provided with a ninth control valve 69. The ninth control valve 69 is located on the branch between the air intake side of the suspension pneumatic subsystem 1, the air storage subsystem 3 and the pump subsystem 4, and the ninth control valve 69 is a normally closed valve, that is, the ninth control valve 69 is normally in the closed state.

[0097] like Figure 1 As shown, in some embodiments of this application, the pump subsystem 4 includes: a pump body 41, a pressure limiting branch 42, and an air intake branch 43.

[0098] The pump body 41 is used to compress the gas medium. The pressure limiting branch 42 is connected in parallel with the pump body 41 and is used to limit the pressure of the pump subsystem 4. The air inlet branch 43 is connected between the air inlet side of the pump body 41 and the air source. It should be noted that the air source can be the external atmospheric environment.

[0099] In a further embodiment of this application, the air intake branch 43 is provided with an air filter 431, which can filter the gas medium entering the air intake branch 43.

[0100] Furthermore, a one-way valve 432 is also provided on the air intake branch 43. The one-way valve 432 is used to restrict the gas medium from flowing into the pump body 41 in one direction. The air intake side of the pump subsystem 4 mentioned above can refer to the air inlet of the pump body 41.

[0101] In some embodiments of this application, the pump body 41 may be configured as a plunger pump.

[0102] like Figure 1 As shown, in some embodiments of this application, a pressure limiting valve 421 is provided in the pressure limiting branch 42, and the pressure limiting valve 421 can be connected to the intake branch 43, and the connection point between the pressure limiting valve 421 and the intake branch 43 is located between the air filter 431 and the one-way valve 432.

[0103] It should be noted that when the gas pressure in the intake branch 43 is too large, the gas in the intake branch 43 can enter the pressure limiting valve 421 and be discharged through the pressure limiting branch 42 to the pipe section area of the intake branch 43 between the air filter 431 and the one-way valve 432, so that the gas medium can be discharged through the air filter 431.

[0104] In some embodiments of the present application, the pneumatic execution subsystem 2 can be connected to a tire, an inflatable seat cushion, a cleaning spray head and other pneumatic execution devices, and supply gas medium to the pneumatic execution devices through the pneumatic execution unit to realize the corresponding functions of the pneumatic execution devices. For example, the pneumatic execution unit supplies gas medium to the tire to inflate the tire, thereby realizing the tire pressure adjustment of the tire; the pneumatic execution unit supplies gas medium to the inflatable seat cushion to inflate the inflatable seat cushion, thereby improving the support effect of the inflatable seat cushion on the passenger; the pneumatic execution unit supplies gas medium to the cleaning spray head to realize the cleaning function of the cleaning spray head.

[0105] Referring to Figure 1 In some embodiments of the present application, the pressure detection device 5 can also be connected to the gas storage subsystem 3 to detect the pressure at the gas storage subsystem 3 through the pressure detection device 5: for example, by controlling the first control valve 61, the third control valve 63 and the fifth control valve 65 to open, the pressure detection device 5 is communicated with the gas storage subsystem 3, thereby realizing the pressure detection at the gas storage subsystem 3.

[0106] The vehicle pneumatic system 100 according to the embodiments of the present application has at least the following advantages compared with the prior art:

[0107] (1) The vehicle pneumatic system 100 integrates multiple subsystems, and the height adjustment of the suspension can be realized by charging and discharging the suspension pneumatic subsystem 1, the pneumatic function of the pneumatic execution unit can be realized by charging and discharging the pneumatic execution subsystem 2, and the gas medium can be stored and recovered by the gas storage subsystem 3.

[0108] (2) The vehicle pneumatic system 100 has multiple working conditions, can realize the recycling of the gas medium in the pneumatic execution subsystem 2, can apply the gas medium in the pneumatic execution subsystem 2 to the suspension pneumatic subsystem after being compressed by the pump subsystem 4, and can store the gas medium in the pneumatic execution subsystem 2 in the gas storage subsystem 3 after being compressed by the pump subsystem 4, thereby improving the utilization rate of the gas medium in the vehicle pneumatic system 100.

[0109] (3) In the vehicle pneumatic system 100, the way of supplying the pneumatic medium to the pneumatic execution subsystem 2 is various, so that the pneumatic medium with various humidity can be delivered to the pneumatic execution subsystem 2. Among them, the pneumatic medium in the outside air source is filtered by the pump subsystem 4 and directly supplied to the pneumatic execution subsystem 2, so that the high-pressure pneumatic medium without humidity requirement can be provided to the pneumatic execution unit; the pneumatic medium in the gas storage subsystem 3 can also be supplied to the pneumatic execution subsystem 2 by the pump subsystem 4, so that the dry pneumatic medium can be provided to the pneumatic execution unit, which can meet the use requirement of the pneumatic execution unit with humidity requirement (i.e. the pneumatic medium is dry gas).

[0110] (4) The pressure in the pneumatic execution subsystem 2, the gas storage subsystem 3 and the suspension pneumatic subsystem 1 can be detected by one pressure detection device 5, which helps to reduce the number of components in the vehicle pneumatic system 100, improve the system integration, and reduce the cost while optimizing the volume of the vehicle pneumatic system 100 (i.e. reduce the volume).

[0111] According to the second aspect of the embodiment of the present application, the vehicle comprises the vehicle pneumatic system 100.

[0112] The vehicle has the same advantages as the vehicle pneumatic system described above compared with the prior art, which will not be repeated here.

[0113] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pneumatic system for a vehicle, characterized in that The vehicle pneumatic system comprises: a suspension pneumatic subsystem (1) provided with an air spring (11); a pneumatic execution subsystem (2) provided with a pneumatic execution unit; a gas storage subsystem (3) capable of storing gas medium; a pump subsystem (4) for driving the flow of gas medium, and the pump subsystem (4) is connected with the suspension pneumatic subsystem (1), the pneumatic execution subsystem (2) and the gas storage subsystem (3); wherein, the pump subsystem (4) can be used to supply gas medium to the pneumatic execution subsystem (2), the gas storage subsystem (3) can supply gas medium to the pneumatic execution subsystem (2) through the pump subsystem (4), the gas storage subsystem (3) can directly supply gas medium to the pneumatic execution subsystem (2), the pump subsystem (4) can be used to supply gas medium to the gas storage subsystem (3), the pump subsystem (4) can supply gas medium to the suspension pneumatic subsystem (1), the gas storage subsystem (3) can supply gas medium to the suspension pneumatic subsystem (1) through the pump subsystem (4), the pneumatic execution subsystem (2) can supply gas medium to the gas storage subsystem (3), and the pneumatic execution subsystem (2) can supply gas medium to the suspension pneumatic subsystem (1) through the pump subsystem (4).

2. The vehicular pneumatic system of claim 1, wherein, The vehicle pneumatic system further comprises a pressure detection device (5) connected between the suspension pneumatic subsystem (1) and the pneumatic execution subsystem (2), and the pressure detection device (5) can be used to detect the gas pressure of the suspension pneumatic subsystem (1) and the pneumatic execution subsystem (2) respectively.

3. The vehicular pneumatic system of claim 2, wherein, A first control valve (61) is arranged between the pressure detection device (5) and the suspension pneumatic subsystem (1), and the first control valve (61) is used to control the on-off state between the pressure detection device (5) and the suspension pneumatic subsystem (1); A second control valve (62) is arranged between the pressure detection device (5) and the pneumatic execution subsystem (2), and the second control valve (62) is used to control the on-off state between the pressure detection device (5) and the pneumatic execution subsystem (2).

4. The vehicular pneumatic system of claim 1, wherein, A third control valve (63) is arranged between the gas outlet side of the pump subsystem (4) and the suspension pneumatic subsystem (1), and the third control valve (63) is used to control the on-off state between the gas outlet side of the pump subsystem (4) and the suspension pneumatic subsystem (1); A fourth control valve (64) is arranged between the gas storage subsystem (3) and the gas inlet side of the pump subsystem (4), and the fourth control valve (64) is used to control the on-off state between the gas storage subsystem (3) and the gas inlet side of the pump subsystem (4); A fifth control valve (65) is arranged between the gas storage subsystem (3) and the pneumatic execution subsystem (2) and between the gas storage subsystem (3) and the gas outlet side of the pump subsystem (4), and is used to control the on-off state of the gas storage subsystem (3) and the pneumatic execution subsystem (2) and the gas outlet side of the pump subsystem (4).

5. The vehicular pneumatic system of claim 4, wherein, The vehicle pneumatic system further comprises a drying branch (7) connected between the gas outlet side of the pump subsystem (4) and the third control valve (63) and between the gas outlet side of the pump subsystem (4) and the fifth control valve (65), and the drying branch (7) is provided with a dryer (71) which can be used for drying the gas medium flowing through the drying branch (7).

6. The vehicular pneumatic system of claim 5, wherein, A sixth control valve (66) is arranged between the gas outlet side of the pump subsystem (4) and the pneumatic execution subsystem (2), and is used to control the on-off state between the gas outlet side of the pump subsystem (4) and the pneumatic execution subsystem (2). The drying branch (7) is provided with a seventh control valve (67) located between the gas outlet side of the pump subsystem (4) and the dryer (71) and between the sixth control valve (66) and the dryer (71), and the seventh control valve (67) is used to control the on-off state of the pneumatic execution subsystem (2) and the drying branch (7) and the gas outlet side of the pump subsystem (4) and the drying branch (7).

7. The vehicular pneumatic system of claim 6, wherein, The vehicle pneumatic system comprises: a first exhaust branch (81) connected between the gas outlet side of the pump subsystem (4) and the sixth control valve (66) and between the gas outlet side of the pump subsystem (4) and the seventh control valve (67), and used for discharging the gas medium in the vehicle pneumatic system; And / or a second exhaust branch (82) connected between the drying branch (7) and the third control valve (63) and between the drying branch (7) and the fifth control valve (65), and used for discharging the gas medium in the vehicle pneumatic system.

8. The vehicular pneumatic system of claim 4, wherein, An eighth control valve (68) is arranged between the pneumatic execution subsystem (2) and the gas inlet side of the pump subsystem (4), and is used to control the on-off state of the pneumatic execution subsystem (2) and the gas inlet side of the pump subsystem (4).

9. The vehicular pneumatic system of claim 1, wherein, The pump subsystem (4) comprises: A pump body (41) for compressing the gas medium; A pressure limiting branch (42) arranged in parallel with the pump body (41), and used for pressure limiting protection of the pump subsystem (4); An inlet branch (43) connected between the gas inlet side of the pump body (41) and a gas source.

10. A vehicle characterized by comprising: The vehicle pneumatic system according to any one of claims 1-9. The vehicle pneumatic system according to any one of claims 1-9.

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