Air supply system and vehicle

Abstract

The utility model provides an air supply system and a vehicle. The gas supply system comprises a gas storage device, a first gas path and a second gas path. One end of the first gas circuit is connected with the gas storage device, the first gas circuit is used for supplying gas to first gas utilization equipment, and the first gas utilization equipment comprises an air spring; one end of the second gas circuit is connected with the gas storage device, the second gas circuit is used for supplying gas to second gas utilization equipment, the second gas utilization equipment comprises a vehicle seat, and the vehicle seat is provided with an air bag. The second gas path is provided with a pressure reducing valve, and the gas storage device, the pressure reducing valve and the second gas utilization equipment are sequentially arranged along the second gas path in the gas supply direction of the gas storage device to the second gas path. The embodiment of the utility model can be used for an intelligent vehicle or a new energy vehicle, the cost of the seat airbag system can be effectively reduced, and the air supply efficiency of the airbag can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent vehicles, and more particularly, to a gas supply system and a vehicle. BACKGROUND

[0002] With the development of society, users spend more and more time in vehicles, and accordingly, users have higher and higher requirements for the riding experience in vehicles. In order to improve the riding comfort of users, it is a feasible solution to provide air bags in seats. For example, air bags can be provided in the side wings on both sides of the seat back and / or the seat cushion to improve the covering feeling of the seat side wings on the human body; for another example, air bags can be provided at the waist support of the seat back to better provide support for the waist of the user.

[0003] At present, for the air bags in the seats, a gas pump and a gas supply pipeline need to be separately provided, resulting in high cost. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a gas supply system and a vehicle, which can effectively reduce the cost of the seat air bag system and improve the gas supply efficiency of the air bags.

[0005] In a first aspect, a gas supply system is provided. The gas supply system comprises a gas storage device, a first gas path and a second gas path. One end of the first gas path is connected to the gas storage device, and the first gas path is used to supply gas to a first gas-consuming device, the first gas-consuming device comprising an air spring; one end of the second gas path is connected to the gas storage device, and the second gas path is used to supply gas to a second gas-consuming device, the second gas-consuming device comprising a vehicle seat provided with an air bag. The second gas path is provided with a pressure reducing valve, and in the direction of gas supply from the gas storage device to the second gas path, the gas storage device, the pressure reducing valve and the second gas-consuming device are sequentially arranged along the second gas path.

[0006] In the present application, the gas storage device of the high-pressure gas-consuming device such as the air spring supplies gas to the seat provided with the air bag and other low-pressure gas-consuming devices. On the one hand, from the perspective of the entire system, it is not necessary to additionally provide a low-pressure gas tank and a gas pump for the vehicle seat and other low-pressure gas-consuming devices, which can reduce the cost of the entire system. On the other hand, since the gas pressure in the gas storage device of the high-pressure gas-consuming device is often maintained at a high range, the gas storage device supplies gas to the seat and other low-pressure gas-consuming devices, and a pressure reducing valve is arranged in the corresponding gas path, which can reduce the fluctuation of the gas pressure in the low-pressure gas path during the inflation process while ensuring the gas demand of the low-pressure gas-consuming device, which is conducive to improving the inflation stability and efficiency of the low-pressure gas-consuming device.

[0007] In some possible implementation manners, the air supply system can further include an air pump. The first air path can be provided with a first control valve group, and the first control valve group can include a first interface, a second interface and a third interface. The first interface can be in communication with the air storage device, the second interface can be in communication with the air pump, and the third interface can be in communication with the first air use device. The first control valve group can be configured to, in the on state, connect at least two interfaces included in the first control valve group.

[0008] In the present application, by providing the first air path with the control valve or the control valve group having multiple interfaces, the air supply mode can be flexibly configured. In particular, in the case where the first air use device includes an air spring, the air spring can be flexibly inflated and deflated, so that the length of the air spring can be flexibly adjusted.

[0009] In some possible implementation manners, the on state of the first control valve group can include a first on state, a second on state and a third on state. In the first on state, the first interface and the second interface can be in communication; in the second on state, the first interface and the third interface can be in communication; and in the third on state, the second interface and the third interface can be in communication.

[0010] In some possible implementation manners, the first control valve group can further include a fourth interface, and the fourth interface can be in communication with the pressure relief pipeline. The on state of the first control valve group can further include a fourth on state and / or a fifth on state. In the fourth on state, the first interface and the fourth interface can be in communication; and in the fifth on state, the third interface and the fourth interface can be in communication.

[0011] In the present application, by communicating the fourth interface of the first control valve group with the pressure relief pipeline, when the first air use device and the air storage device are deflated, the air pump does not need to be controlled to perform air extraction from the corresponding pipeline, and the complexity of control can be reduced.

[0012] In some possible implementation manners, the vehicle can include multiple air springs, and the first control valve group can include a corresponding plurality of third interfaces.

[0013] In some possible implementation manners, the second air path can include a first pipeline assembly and a second pipeline assembly. One end of the first pipeline assembly can be in communication with the air storage device, and the other end of the first pipeline assembly can be in communication with the pressure reducing valve. One end of the second pipeline assembly can be in communication with the pressure reducing valve, and the other end of the second pipeline assembly can be in communication with the second air use device. The ratio of the gas pressure in the first pipeline assembly to the gas pressure in the second pipeline assembly can be greater than or equal to a first threshold value.

[0014] In some possible implementation manners, the first threshold value can be greater than or equal to 15.

[0015] In the present application, the pressure reduction ratio of the pressure reduction valve is reasonably set, so that the gas storage device can meet the inflation requirements of both high-pressure gas equipment and low-pressure gas equipment.

[0016] In some possible implementation manners, the second gas path can be provided with a first control valve, and the first control valve in the off state can be used to block the gas in the second gas path from passing through the first control valve.

[0017] In the present application, by providing the control valve in the second gas path, the connection relationship between the gas leakage part and other parts of the system can be cut off in the case of gas leakage fault of the gas supply system, thereby facilitating the normal operation of the non-leakage part.

[0018] In some possible implementation manners, the first section pipeline assembly can be provided with a first control valve, and / or the second section pipeline assembly can be provided with a first control valve.

[0019] Since the gas pressure in the second pipeline assembly is low, in the present application, by providing the first control valve in the second section pipeline assembly, the force of the gas in the second gas path on the first control valve can be reduced, which is conducive to using a control valve with lower performance to control the on-off of the gas path and reducing the system cost.

[0020] In addition, in the present application, by providing the first control valve in the first section pipeline assembly, when the pressure reduction valve in the second gas path is repaired or replaced, by setting the first control valve in the off state, the gas in the gas storage device does not need to be completely discharged, and the maintenance process can be simplified.

[0021] In some possible implementation manners, the first control valve can be a solenoid valve; or the first control valve can be a one-way valve, which in the on state is used to allow the gas in the second gas path to pass through the one-way valve in the gas supply direction of the gas storage device to the second gas path, and limit the gas in the second gas path to pass through the one-way valve in the opposite direction of the gas supply direction.

[0022] In some possible implementation manners, the gas pressure in the second section pipeline assembly can be less than or equal to 0.3 MPa.

[0023] In view of the material and pressure resistance performance of the seat airbag, in the present application, by setting the second threshold value to 0.3 MPa, the inflation of the seat airbag can be ensured, and the seat airbag can be prevented from bursting due to excessive inflation pressure.

[0024] In a second aspect, a vehicle is provided, which can include the gas supply system in the first aspect and any possible implementation manner thereof. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1is a functional block diagram of an intelligent driving device provided by an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of a gas supply system provided by an embodiment of the present application;

[0027] Figure 3 is a schematic diagram of a gas supply system provided by an embodiment of the present application;

[0028] Figure 4 is a schematic diagram of a gas supply system provided by an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of a gas supply system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0031] Figure 1 is a functional block diagram of an intelligent driving device 100 provided by an embodiment of the present application.

[0032] The intelligent driving device 100 can include a perception system 120 and a computing platform 150, wherein the perception system 120 can include one or more sensors that sense information about the environment around the intelligent driving device 100. For example, the perception system 120 can include a positioning system, which can be a global positioning system (GPS), a Beidou system, or other positioning systems. The perception system 120 can also include one or more of an inertial measurement unit (IMU), a laser radar, a millimeter wave radar, an ultrasonic radar, and a camera.

[0033] Some or all functions of the intelligent driving device 100 can be controlled by the computing platform 150. The computing platform 150 can include one or more processors, such as processors 151 to 15n (n is a positive integer), which are circuits having a processing capability of signals. In one implementation, the processor can be a circuit having an instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a kind of microprocessor), or a digital signal processor (DSP), etc. In another implementation, the processor can implement certain functions through a logic relationship of a hardware circuit, which is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as a field programmable gate array (FPGA). In the reconfigurable hardware circuit, the processor loads a configuration document to implement the hardware circuit configuration. It can be understood that the processor loads instructions to implement the functions of the above part or all units. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as a kind of ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc. In addition, the computing platform 150 can also include a memory for storing instructions, and some or all of the processors 151 to 15n can call the instructions in the memory to implement corresponding functions. For example, the intelligent driving device 100 can be a vehicle.

[0034] The air bag arranged in the seat is more and more favored by users as a feasible solution to improve the comfort of the seat. In order to adjust the pressure of the gas in the air bag, a gas pump and a gas supply pipeline need to be arranged for the air bag in the seat. However, on the one hand, the addition of the gas pump will cause the cost to increase; on the other hand, it is often difficult to obtain ideal gas supply efficiency by directly using the gas pump to supply gas.

[0035] In view of this, the embodiments of the present application provide a gas supply system and a vehicle, which can effectively reduce the cost of the seat air bag system, improve the gas supply efficiency of the air bag, and also reduce the failure probability of the air bag system.

[0036] Exemplarily, Figure 2 is a schematic diagram of a gas supply system provided by an embodiment of the present application.

[0037] With reference to Figure 2 , the gas supply system 10 can include a gas storage device 310, a first gas path 410 and a second gas path 510. One end of the first gas path 410 can be connected to the gas storage device 310, and the first gas path 410 can be used to supply gas to a first gas using device 420. One end of the second gas path 510 can be connected to the gas storage device 310, and the second gas path 510 can be used to supply gas to a second gas using device 520. For example, for a certain gas path, in a specific implementation, the gas path can be implemented by a single pipeline; or it can also include a plurality of pipelines which are sequentially connected so as to achieve gas supply to the gas using device.

[0038] The gas using pressure of the first gas using device 420 can be higher than the gas using pressure of the second gas using device 520; accordingly, the first gas using device 420 can be referred to as a high-pressure gas using device, and the second gas using device 520 can be referred to as a low-pressure gas using device. For example, the gas using pressure of the first gas using device 420 can be 15 times or 18 times the gas using pressure of the second gas using device 520.

[0039] Since one end of the first gas path 410 is connected to the gas storage device 310, in order to guarantee normal gas using of the first gas using device 420, the pressure of the gas in the gas storage device 310 can be set according to the gas using pressure required by the first gas using device 420. For example, in the case where the gas pressure in the gas storage device 310 is higher than the gas pressure in the first gas using device 420, the gas in the gas storage device 310 can flow to the first gas using device 420 through the first gas path 410; in this way, the first gas using device 420 can be inflated. For another example, in the case where the gas pressure in the gas storage device 310 is lower than the gas pressure in the first gas using device 420, the gas in the first gas using device 420 can flow back to the gas storage device 310 through the first gas path 410; in this way, the first gas using device can be deflated. For an air spring, by inflating and deflating the air spring, the height of the air spring can be adjusted.

[0040] Correspondingly, a pressure regulating device can be arranged in the second gas path 510 to avoid damage to the second gas using device caused by high-pressure gas output by the gas storage device 310 flowing to the second gas using device through the second gas path. For example, the second gas path 510 can be provided with a pressure reducing valve 530, and the gas storage device 310, the pressure reducing valve 530 and the second gas using device 520 can be sequentially arranged in the direction of gas supply from the gas storage device 310 to the second gas path 510.

[0041] In some embodiments, the gas storage device 310 can be a gas tank. For example, the gas supply system 10 can further include a gas pump for inflating the gas tank, and the gas pump can be in communication with the gas tank through a pipeline. The gas tank can be inflated by the gas pump, so that the pressure of the gas in the gas tank is above a certain pressure value.

[0042] In yet other embodiments, the first gas consuming device 420 can be other gas consuming devices other than the vehicle seat.

[0043] In one example, the first gas consuming device 420 can include an air spring. The air spring can utilize the compressibility of the gas inside the air spring to achieve the effect of expansion and contraction. For a vehicle with an air suspension system, the vehicle can include a plurality of air springs (e.g., 4 air springs). Accordingly, the gas storage device 310 can be a gas tank for the air suspension system, and the gas tank can inflate one or more air springs in the air suspension system through a gas pipeline. For example, when the first gas consuming device 420 includes an air spring, the gas pressure in the gas storage device 310 can be between 9 MPa and 23 MPa.

[0044] In another example, the first gas consuming device 420 can include a tire. For a vehicle with a tire inflation system, the vehicle can inflate or deflate the tire through the tire inflation system to adjust the pressure of the tire. In this example, the gas storage device 310 can be a gas tank for the tire inflation system, and the gas tank can supply gas to the corresponding tire through the first gas pipeline 410.

[0045] In an example, the second gas consuming device 520 can include a vehicle seat, and the vehicle seat can be provided with an airbag. For example, the airbag in the seat can be provided at one or more positions of the seat, such as the lumbar support, the side wings, and the leg rest.

[0046] In some embodiments, the second gas consuming device 520 can include an external gas consuming device of the vehicle. For example, the vehicle can be provided with an inflation interface, and an external gas consuming device such as an inflatable rubber boat can be connected to the inflation interface through a corresponding interface, so that the external gas consuming device can be inflated through a gas pipeline.

[0047] In the embodiments of the present application, the gas storage device of the high-pressure gas equipment such as the air spring supplies gas to the low-pressure gas equipment such as the seat provided with the air bag. On the one hand, from the perspective of the whole system, the low-pressure gas tank and the gas pump for the low-pressure gas equipment such as the seat of the vehicle do not need to be additionally arranged, and the cost of the whole system can be reduced. On the other hand, since the gas pressure in the gas storage device of the high-pressure gas equipment is often maintained in a high range, the seat and other low-pressure gas equipment are supplied with gas by the gas storage device, and a pressure reducing valve is arranged in the corresponding gas path, so that the fluctuation of the gas pressure in the low-pressure gas path during the inflation process can be reduced under the condition of guaranteeing the gas demand of the low-pressure gas equipment, and the inflation stability and the inflation efficiency of the low-pressure gas equipment can be improved.

[0048] Exemplarily, the second gas path 510 can include a first section pipe assembly 511 and a second section pipe assembly 512. One end of the first section pipe assembly 511 can be in communication with the gas storage device 310, and the other end can be connected with the pressure reducing valve 530. One end of the second section pipe assembly 512 can be connected with the pressure reducing valve, and the other end can be in communication with the second gas equipment 520. For example, referring to Figure 2 The pressure reducing valve 530 can divide the second gas path 510 into the pipe assemblies 511 and 512.

[0049] In some possible implementations, when the gas storage device 310 supplies gas to the second gas equipment through the second gas path 510, the gas pressure in the first section pipe assembly 511 and the gas pressure in the second section pipe assembly 512 can be greater than or equal to a certain threshold value (for the sake of distinction, denoted as a first threshold value). That is, the pressure reducing ratio of the pressure reducing valve 530 can be greater than or equal to the first threshold value. For example, the first threshold value can be greater than or equal to 10. For another example, in the case that the first gas equipment includes the air spring and the second gas equipment includes the seat provided with the air bag, the first threshold value can be greater than or equal to 15.

[0050] In the embodiments of the present application, the pressure reducing ratio of the pressure reducing valve is reasonably set, so that the gas storage device can meet the inflation demand of the high-pressure gas equipment and the inflation demand of the low-pressure gas equipment.

[0051] In one example, assume that the pressure in the gas storage device 310 / the pressure at the gas outlet end is 9 MPa, and assume that the required inflation pressure of the second gas-consuming device 520 is 0.5 MPa. Since the first pipe assembly 511 is between the pressure-reducing valve 530 and the gas storage device 310, and the second pipe assembly 512 is between the pressure-reducing valve 530 and the second gas-consuming device 520, when the gas storage device 310 supplies gas to the second gas-consuming device 520 through the second gas path 510, the first pipe assembly 511 is in communication with the gas storage device 310, and the pressure in the first pipe assembly 511 will be 9 MPa. Since there is pressure attenuation before and after the gas passes through the pressure-reducing valve 530, the pressure of the gas in the second pipe assembly 512 will be 0.5 MPa. In this example, the ratio of the pressures in the first pipe assembly 511 and the second pipe assembly 512 can be 18.

[0052] In another example, the pressure-reducing valve 530 can also be used to limit the pressure at the gas outlet to a certain threshold value (denoted as a second threshold value). For example, the second threshold value can be 0.3 MPa. Accordingly, the pressure of the gas in the second pipe assembly 512 will be less than or equal to 0.3 MPa.

[0053] In view of the material and pressure resistance performance of the seat airbag, in the embodiments of the present application, by setting the second threshold value to 0.3 MPa, the inflation of the seat airbag can be ensured, and the seat airbag can be prevented from bursting due to excessive inflation pressure.

[0054] In some possible implementations, the gas supply system 10 can also include other components, such as a gas pump and / or a control valve.

[0055] Exemplarily, the gas supply system 10 can also include a gas pump. The gas pump can be connected to the gas storage device 310 through a pipe to adjust the pressure of the gas in the gas storage device 310. The pipe can or can not be provided with a control valve.

[0056] Exemplarily, the gas supply system 10 can also include a control valve provided in the first gas path and / or a control valve provided in the second gas path. The control valve in the first gas path 410 can be used to control the opening and closing of the first gas path. Similarly, the control valve in the second gas path 510 can be used to control the opening and closing of the second gas path.

[0057] In one embodiment, referring to Figure 2 , the first gas path 410 can be provided with a control valve 430. The control valve 430 can be a multi-way valve (such as a three-way valve). One interface (such as interface #1) of the control valve 430 can be in communication with the gas storage device 310. Another interface (such as interface #2) of the control valve 430 can be in communication with the gas pump 320. Yet another interface (such as interface #3) of the control valve 430 can be in communication with the first gas-consuming device 420.

[0058] For example, when interface #1 is in communication with interface #2, air pump 320 can adjust the air pressure in air storage device 310 (e.g., air storage device 310 can be inflated). For another example, when interface #1 is in communication with interface #3, air can flow between air storage device 310 and first air consuming device 420 through air path 410; air storage device 310 can inflate first air consuming device 420, or air in first air consuming device 420 can flow back to air storage device 310. For yet another example, when interface #2 is in communication with interface #3, air pump 320 can supply air to first air consuming device 420, or air pump 320 can be controlled to draw air from first air consuming device 420. For yet another example, when control valve 430 is in the off state, none of interfaces #1, #2, and #3 will be in communication.

[0059] In some implementations, control valve 430 can be implemented by a single control valve, or can be implemented by a control valve group formed by a plurality of valves. For example, when control valve 430 is implemented by a control valve group, the plurality of valves in the control valve group can be disposed in a same valve body, or can be connected by a pipe.

[0060] In some possible implementations, second air path 510 can be provided with a first control valve, which can be used to control the on / off of second air path. The first control valve, in the off state, can be used to block the air in second air path from passing through the first control valve.

[0061] For example, referring to Figure 2 , second air path 510 can include control valve 540 disposed in pipe assembly 511, and / or control valve 550 disposed in pipe assembly 512. Control valves 540, 550 can be used to control the on / off of second air path. Control valves 540, 550 can correspond to the first control valve.

[0062] For example, control valve 540, in the off state, can block the air flowing from air storage device 310 to second air consuming device 520 from passing through control valve 540, so that the air cannot flow into second air consuming device 520.

[0063] In some embodiments, the first control valve can be a solenoid valve.

[0064] In yet some embodiments, the first control valve can be a one-way valve. The one-way valve, in the on state, can be used to allow air to flow in a direction in which air storage device 310 supplies air to second air path 510, and to limit the air from flowing in the opposite direction of the air supply direction. The one-way valve, in the off state, can block the air from passing through. In some implementations, the one-way valve can be a mechanical valve.

[0065] In the embodiments of the present application, by arranging the control valve in the second gas path, the connection between the gas leakage part and other parts of the system can be cut off in the case of gas leakage fault in the gas supply system, thereby facilitating the normal operation of the non-leakage part.

[0066] Further, since the gas pressure of the second pipeline assembly is low, by arranging the first control valve in the second pipeline assembly, the force of the gas in the second gas path on the first control valve can be reduced, which is conducive to using a control valve with lower performance to control the on-off of the gas path, and is conducive to reducing the system cost.

[0067] In addition, by arranging the first control valve in the first pipeline assembly, when the pressure reducing valve in the second gas path is repaired or replaced, by setting the first control valve to the off state, the gas in the gas storage device does not need to be completely discharged, and the maintenance process can be simplified.

[0068] In some possible implementation manners, the first gas path can be provided with a first control valve group, which can include a first interface, a second interface, and a third interface. The first interface can be in communication with the gas storage device 310, the second interface can be in communication with the gas pump 320, and the third interface can be in communication with the first gas-consuming equipment 420. The first control valve group in the on state can be used to connect at least two of the interfaces contained therein.

[0069] For example, in the case where the control valve 430 is implemented by a control valve group, correspondingly, the interface #1 can correspond to the first interface, the interface #2 can correspond to the second interface, and the interface #3 can correspond to the third interface. Figure 2

[0070] In the embodiments of the present application, by arranging the control valve or the control valve group with multiple interfaces in the first gas path, the air supply mode can be flexibly configured; especially in the case where the first gas-consuming equipment includes an air spring, the air spring can be flexibly inflated and deflated, thereby the length of the air spring can be flexibly adjusted.

[0071] In some possible implementation manners, the first control valve group can further include a fourth interface, which can be in communication with the pressure relief pipeline.

[0072] In the embodiments of the present application, by communicating the fourth interface of the first control valve group with the pressure relief pipeline, when the first gas-consuming device and the gas storage device are deflated, the gas pump does not need to be controlled to perform gas extraction from the corresponding pipeline, and the control complexity can be reduced.

[0073] ​Exemplarily, since the first control valve group is provided with multiple interfaces, the first control valve group can have multiple conduction states. For example, in a first conduction state, the first interface and the second interface of the first control valve group can be in communication; in this case, gas can flow between the gas pump 320 and the gas storage device 310. For another example, in a second conduction state, the first interface and the third interface of the first control valve group can be in communication; in this case, gas can flow between the gas storage device 310 and the first gas using device 420. For another example, in a third conduction state, the second interface and the third interface of the first control valve group can be in communication; in this case, gas can flow between the gas pump 320 and the first gas using device 420. For another example, in a fourth conduction state, the first interface and the fourth interface of the first control valve group can be in communication; in this case, the gas storage device 310 can be in communication with the pressure relief pipeline, and gas in the gas storage device 310 can flow to the pressure relief pipeline. For another example, in a fifth conduction state, the third interface and the fourth interface of the first control valve group can be in communication; in this case, the first gas using device can be in communication with the pressure relief pipeline, and gas in the first gas using device can flow to the pressure relief pipeline.

[0074] The other interfaces not mentioned in the above description of the conduction states of the first control valve group can be in a disconnected state. For example, in the first conduction state, the first interface and the second interface are in a communication state, the third interface can be in a disconnected state, and the fourth interface can also be in a disconnected state. For another example, in the second conduction state, the first interface and the third interface are in a communication state; the second interface can be in a disconnected state, and the fourth interface can also be in a disconnected state.

[0075] The following will be described in combination with Figure 3 The first interface to the fourth interface are exemplarily described.

[0076] Exemplarily, Figure 3 is a schematic diagram of a gas supply system provided by an embodiment of the present application. The gas supply system 20 can be understood as an extension or a deformation of the gas supply system 10. Figure 3 In the gas supply system 20, it is assumed that the first gas path 410 supplies gas to only one gas using device.

[0077] Referring to Figure 3 , the control valve group 440 can be provided in the gas path 410. The control valve group 440 can include an interface 441, an interface 442, and an interface 445; the interface 441 can be in communication with the gas storage device 310, the interface 442 can be in communication with the gas pump 320, and the interface 445 can be in communication with the first gas using device 420. The control valve group 440 can correspond to the first control valve group, the interface 441 can correspond to the first interface, the interface 442 can correspond to the second interface, and the interface 445 can correspond to the third interface.

[0078] In some embodiments, the control valve group 440 can further include an interface 443. The interface 443 can be connected with a pressure relief pipeline, and can be in communication with the environment. The interface 443 can correspond to a fourth interface. For example, when the interface 441 is in communication with the interface 443, the gas in the gas storage device 310 can be discharged through the interface 443, so that the pressure in the gas storage device 310 decreases. For another example, when the interface 445 is in communication with the interface 443, the gas in the first gas using device 420 can be discharged through the interface 443, so that the pressure in the first gas using device 420 decreases.

[0079] With reference to Figure 3 , the second gas path 510 can be used to supply gas to a plurality of gas using devices, such as the gas using devices 511 to 51a (a is a positive integer). For example, the gas using devices 511 to 51a can be different vehicle seats. For another example, one of the gas using devices 511 to 51a can be an external gas using device.

[0080] In actual use, the different gas using devices in the second gas path can have different demands for inflation; for example, at a certain time, one gas using device does not need to be inflated, while another gas using device needs to be inflated.

[0081] In some embodiments, with reference to Figure 3 , the second gas path can be provided with a gating valve 560. The gas inlet end of the gating valve 560 can be in communication with the pressure reducing valve 530, and the gas outlet end of the gating valve 560 can be connected with the gas using devices 511 to 51a through different branches. When a single gas using device has a demand for inflation, the gas in the gas storage device 310 can flow to the branch in which the gas using device is located by controlling the communication between the gas inlet end of the gating valve 560 and the gas outlet end of the gating valve 560 corresponding to the gas using device.

[0082] In the embodiments of the present application, the second gas path is used to supply gas to a plurality of gas using devices, which can reduce the number of pressure reducing valves in the entire gas supply system, and is conducive to reducing the number and length of pipelines in the entire gas supply system for bearing high-pressure gas, thereby reducing costs. Further, in the case where the second gas path is used to supply gas to a plurality of gas using devices, by providing a gating valve in the second gas path, different gas using demands of different gas using devices can be taken into account, and the flexibility of the gas supply system can be improved.

[0083] In some other embodiments, unlike the manner shown in Figure 3 , the gas path 510 can only be used to supply gas to the gas using device 511; accordingly, the gas path 510 can not need to be provided with the gating valve 560. For other low-pressure gas using devices, such as the gas using device 51a, a gas path similar to the gas path 510 can be separately provided (i.e., the gas path used to supply gas to the gas using device 51a can be connected with the gas storage device 310, and is provided with a pressure reducing valve). Compared with Figure 3In the shown solution, the adoption of this way will cause more pressure relief valves to be set in the system, which will cause the increase of the part cost and the risk of air leakage.

[0084] The following description will be given in combination with Figure 4 , assuming that the air suspension system includes four air springs (such as air springs 421 to 424), and the first interface to the fourth interface are exemplarily described. Moreover, in Figure 4 , it is assumed that the air storage device 310 can inflate a plurality of seats provided with air bags.

[0085] Exemplarily, Figure 4 is a schematic diagram of a gas supply system provided by an embodiment of the present application. The gas supply system 30 can be understood as an extension or deformation of the gas supply systems 10 and 20.

[0086] Referring to Figure 4 , and Figure 3 similarly, the control valve group 440 can be arranged on the air supply circuit (i.e., the air circuit 410) of the air suspension. The control valve group 440 can include the interfaces 441 to 443, and can further include the interfaces 446 to 449. Similar to Figure 3 , the interface 441 can be connected to the air storage device through the pipe assembly 411, the interface 442 can be connected to the air pump through the pipe assembly, and the interface 443 can be connected to the pressure relief pipe; and Figure 3 differently, the interfaces 446 to 449 can be communicated with the air springs 421 to 424 through the branches 412 to 415, respectively.

[0087] In this example, the interface 441 can correspond to the first interface, the interface 442 can correspond to the second interface, the interface 443 can correspond to the fourth interface, and the interfaces 446 to 449 can correspond to the third interface.

[0088] For example, when the interface 441 is communicated with the interface 446, the gas can flow between the air storage device 310 and the air spring 421 through the pipe assembly 411 and the branch 412. For another example, when it is needed to reduce the gas pressure in the air spring 421, the interface 446 can be communicated with the interface 443, and the gas in the air spring 446 can be discharged through the interface 443, so that the pressure relief of the air spring 446 can be achieved. The inflation and deflation of the other air springs can be similar to that of the air spring 446, which will not be described herein again.

[0089] Referring to Figure 4 , and Figure 3Similarly, the seat 1 to the seat m (m is a positive integer) can be connected to the gate valve 560 through the branch 5121 to 512m, respectively. For example, the seat 1 can include p (p is a positive integer) airbags; which can be respectively recorded as seat 1_airbag 1, to, seat 1_airbag p. For another example, the seat m can include q (q is a positive integer) airbags; which can be respectively recorded as seat m_airbag 1, to, seat m_airbag q. The number of airbags in different seats can be the same or different, that is, p and q can be the same or different.

[0090] In some embodiments, in order to realize the control of a single airbag, a control valve can be arranged between the gate valve 560 and the seat airbag to control the on-off of the branch in which the airbag is located. For example, for the seat 1, a control valve 1_1 can be arranged between the gate valve 560 and the seat 1_airbag 1; a control valve 1_p can be arranged between the gate valve 560 and the seat 1_airbag p. Similarly, for the seat m, control valves m_1 and m_q can be arranged.

[0091] Exemplarily, Figure 5 is another schematic diagram of a gas supply system provided by an embodiment of the present application. The gas supply system 40 can be understood as an extension or deformation of the gas supply systems 10, 20, and 30.

[0092] Referring to Figure 5 , the gas supply system can include a gas supply unit, a high-pressure air circuit, and a low-pressure air circuit. The high-pressure air circuit can supply air to the execution unit of the air suspension, and the low-pressure air circuit can supply air to the execution unit of the seat. Among them, the execution unit of the air suspension can be an air spring; the execution unit of the seat can be an airbag in the seat. The gas supply unit can include a gas storage device, and can also include a gas pump.

[0093] In Figure 5 , it is assumed that the seat has three airbags corresponding to the seat execution units 1 to 3. In the direction of the gas supply of the low-pressure air circuit by the gas supply unit, the low-pressure air circuit can be sequentially provided with a control valve (for example, which can correspond to the control valve 540 in Figure 2 ), a pressure reducing valve (for example, which can correspond to the pressure reducing valve 530 in Figure 2 ), a four-way valve, and the seat execution unit. The seat execution units 1 to 4 can be connected to the three interfaces of the four-way valve through the corresponding pipelines, and the other interface of the four-way valve can be in communication with the pressure reducing valve. The seat control unit can control the inflation process of each airbag in the low-pressure air circuit by controlling the state of the four-way valve. The air circuit control unit can be used to control the state of the control valve between the gas supply unit and the pressure reducing valve in the low-pressure air circuit, and can control the on-off of the low-pressure air circuit.

[0094] In the direction of the gas supply of the high-pressure air circuit by the gas supply unit, the high-pressure air circuit can be sequentially provided with an air suspension air circuit distribution unit (for example, which can correspond to the air suspension air circuit distribution unit 510 inFigure 2 control valve 430 in the air suspension control unit 400, Figure 4 control valve group 440 in the air suspension control unit 400). The air suspension control unit can control the state of the air suspension air path distribution unit, and can control the high-pressure air path for the air spring charging and discharging process.

[0095] In a normal state, the high-pressure gas tank in the air supply unit is in a conductive state with the low-pressure air path, and the gas in the high-pressure gas tank can flow to the pressure reducing valve. When the air supply unit leaks or the seat execution unit leaks, the connection between the high-pressure gas tank and the low-pressure air path can be disconnected by the air path control unit to ensure normal air supply of the air suspension execution unit.

[0096] The above is combined with Figures 2 to 5 The air supply system provided in the embodiments of the present application is exemplarily described.

[0097] The embodiments of the present application also provide a vehicle, which can include Figures 2 to 5 any air supply system in the above, or can include the device 2000 or 3000 described above.

[0098] The vehicle involved in the embodiments of the present application can be a vehicle in a broad sense, which can be a vehicle (such as a commercial vehicle, a passenger vehicle, a motorcycle, a flying vehicle, a train, etc.), an industrial vehicle (such as a forklift, a trailer, a tractor, etc.), an engineering vehicle (such as an excavator, a bulldozer, a crane, etc.), an agricultural device (such as a mower, a harvester, etc.), a recreational device, a toy vehicle, etc. The type of the vehicle is not specifically limited in the embodiments of the present application. For example, the vehicle in the present application can be a hybrid electric vehicle (HEV), a range extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), or a new energy vehicle (NEV), etc.

[0099] Unless otherwise required by context, as used herein the term "comprise" and variations of the term, such as "comprises" and "comprising," will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. In describing the embodiments of the application, the terms "one embodiment," "some embodiments," "exemplary embodiments,” “example,” “specific example” or “some examples” are used to indicate that the described embodiment(s) is (are) among numerous possible embodiments of the application. Such terms do not indicate that a described embodiment or embodiments is (are) the only way(s) to implement the present application. In addition, such terms indicate that one or more features of a described embodiment or embodiments can be included in, or combined with, any one or more of the described embodiments.

[0100] The terms "first", "second", and the like, as used herein, do not imply any relative importance or any particular order. Thus, a feature specified as a "first" or "second" feature can include one or more of the feature, explicitly or implicitly. In the description of embodiments of the present application, the term "plurality" means two or more, unless otherwise specified.

[0101] In the description of embodiments of the present application, it is also to be understood that the terminology and phraseology employed herein are for descriptive purposes and should not be regarded as limiting. Unless otherwise defined, terms such as "mounting", "connecting", "connecting", and the like, are to be construed in their broadest possible sense, such as to include fixed connections, detachable connections, or integrally formed connections, and direct connections or indirect connections via intermediate media. The specific meaning of the above terms in the present application will be apparent to those of ordinary skill in the art.

[0102] Reference to "an embodiment" or "some embodiments" of the application in the description means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" or "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to any one embodiment. It is expressly understood that any of the features, structures, or characteristics described in connection with an embodiment can be included in any other embodiment, combination of embodiments, or in any other claim.

[0103] The term "and / or" in the present application is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after it.

[0104] In addition, the use of "based on" means openness and inclusiveness, because the process, step, calculation or other action "based on" one or more described conditions or values can be based on additional conditions or beyond the described values in practice.

[0105] The "about", "approximately" or "approximately" in the embodiments of the present application include the values stated and the average values within the acceptable deviation range of the specific values, wherein the acceptable deviation range is determined by considering the measurement being discussed and the error related to the measurement of the specific quantity, i.e. the limitation of the measurement system.

[0106] In several embodiments provided in the present application, it should be understood that the above-described embodiments are only illustrative, for example, the division of the modules is only a logical functional division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0107] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas supply system, characterized in that, the gas supply system comprises a gas storage device (310), a first gas path (410) and a second gas path (510); one end of the first gas path (410) is connected with the gas storage device (310), the first gas path (410) is used for supplying gas to a first gas using device (420), and the first gas using device (420) comprises an air spring; one end of the second gas path (510) is connected with the gas storage device (310), the second gas path (510) is used for supplying gas to a second gas using device (520), and the second gas using device (520) comprises a vehicle seat provided with an air bag; the second gas path (510) is provided with a pressure reducing valve (530), and the gas storage device (310), the pressure reducing valve (530) and the second gas using device (520) are sequentially arranged along the second gas path (510) in the direction of gas supply from the gas storage device (310) to the second gas path (510).

2. The gas supply system according to claim 1, characterized in that, the gas supply system further comprises a gas pump (320); the first gas path (410) is provided with a first control valve group (440), and the first control valve group (440) comprises a first interface (441), a second interface (442) and a third interface (443); the first interface (441) is communicated with the gas storage device (310), the second interface (442) is communicated with the gas pump (320), and the third interface (443) is communicated with the first gas using device (420); the first control valve group (440) is used for connecting at least two interfaces included in the first control valve group (440) in a conduction state.

3. The gas supply system according to claim 2, characterized in that, the conduction state of the first control valve group (440) comprises a first conduction state, a second conduction state and a third conduction state; in the first conduction state, the first interface (441) and the second interface (442) are communicated; in the second conduction state, the first interface (441) and the third interface (443) are communicated; in the third conduction state, the second interface (442) and the third interface (443) are communicated.

4. The gas supply system according to claim 2 or 3, characterized in that, the first control valve group (440) further comprises a fourth interface (443), and the fourth interface (443) is communicated with a pressure relief pipeline; the conduction state of the first control valve group (440) further comprises a fourth conduction state and / or a fifth conduction state; in the fourth conduction state, the first interface (441) and the fourth interface (443) are communicated; in the fifth conduction state, the third interface (443) and the fourth interface (443) are communicated.

5. The gas supply system according to claim 2 or 3, characterized in that, the vehicle comprises a plurality of air springs, and the first control valve group (440) comprises a plurality of corresponding third interfaces.

6. The gas supply system according to any one of claims 1 to 3, characterized in that, The second gas path (510) comprises a first section pipe assembly (511) and a second section pipe assembly (512); One end of the first section pipe assembly (511) is in communication with the gas storage device (310), and the other end of the first section pipe assembly (511) is in communication with the pressure reducing valve (530); One end of the second section pipe assembly (512) is in communication with the pressure reducing valve (530), and the other end of the second section pipe assembly (512) is in communication with the second gas using device (520); The ratio of the gas pressure in the first section pipe assembly (511) to the gas pressure in the second section pipe assembly (512) is greater than or equal to a first threshold value.

7. The gas supply system according to claim 6, wherein The first threshold value is greater than or equal to 15.

8. The gas supply system according to claim 6, wherein The second gas path (510) is provided with a first control valve (540, 550), and the first control valve (540, 550) is in a closed state to block the gas in the second gas path (510) from passing through the first control valve (540, 550).

9. The gas supply system according to claim 8, wherein The first section pipe assembly (511) is provided with the first control valve (540), and / or The second section pipe assembly (512) is provided with the first control valve (540).

10. The gas supply system according to claim 8 or 9, wherein The first control valve (540, 550) is an electromagnetic valve; or The first control valve (540, 550) is a one-way valve, and the one-way valve is in a conductive state to allow the gas in the second gas path (510) to pass through the one-way valve in the direction of the gas supply of the gas storage device (310) to the second gas path (510), and limit the gas in the second gas path (510) to pass through the one-way valve in the opposite direction of the gas supply direction.

11. The gas supply system according to claim 6, wherein The gas pressure in the second section pipe assembly (512) is less than or equal to 0.3 MPa.

12. A vehicle characterized by comprising: The vehicle comprises the gas supply system according to any one of claims 1 to 11.

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