Vehicle and production line and online inflation method thereof

Abstract

The invention relates to the technical field of vehicle manufacturing, and provides a vehicle and a production line and an online inflation method thereof. The vehicle comprises a vehicle body and the air suspension, the air suspension is connected with the vehicle body, and the air suspension at least comprises a split type air suspension. The production line comprises a first inflation device and a second inflation device. The first inflation device is located at a first station and used for controlling the split type air suspension to be inflated to first preset air pressure, so that the split type air suspension makes contact with a vehicle body to reach a preset position; and the second inflation device is located at the second station, the second station is located at the downstream of the first station, and the second inflation device is used for controlling all the air suspensions to be inflated to second preset air pressure, so that the vehicle body is kept at the first preset height. The split type air suspension is pre-inflated through the first inflation device, the split type air suspension makes contact with the vehicle body, the split type air suspension can be kept to the preset position relative to the vehicle body, and other parts can be conveniently positioned and installed on the basis of the split type air suspension in a subsequent station.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle manufacturing, and particularly relates to a vehicle, its production line, and an on-line inflation method. Background Art

[0002] In the related art, an increasing number of vehicles are currently equipped with air suspensions. The air suspensions used on vehicles mainly have two structural forms: strut air suspensions and split air suspensions. The air spring of the strut air suspension is integrated with the shock absorber, and has a certain initial pressure in the supply state, and can bear pressure after being assembled with the vehicle body. The air spring and the shock absorber of the split air suspension are relatively independent, and there is no pressure in the supply state. After the air spring is assembled with the vehicle body, it cannot bear pressure, and thus the preset position of the split air suspension relative to the vehicle body cannot be guaranteed after assembly. Summary of the Invention

[0003] In view of this, the embodiments of the present application expect to provide a vehicle, its production line, and an on-line inflation method, so that the vehicle body is in the designed position when the vehicle comes off the production line.

[0004] In order to achieve the above object, the technical solution adopted in the present application is as follows:

[0005] A first aspect of the embodiments of the present application provides a production line of a vehicle. The vehicle includes a vehicle body and an air suspension, and the air suspension includes at least a split air suspension. The production line includes:

[0006] A first inflation device, located at a first station, for controlling the split air suspension to be inflated to a first preset air pressure, so that the split air suspension contacts the vehicle body at a preset position;

[0007] A second inflation device, located at a second station, the second station being downstream of the first station. The second inflation device is used for respectively controlling all the air suspensions to be inflated to a second preset air pressure, so that the vehicle body is maintained at a first preset height.

[0008] In some embodiments, the vehicle includes a compressor connected to the air suspension, and the first inflation device is used for being electrically connected to the compressor to control the compressor to inflate the split air suspension.

[0009] In some embodiments, the vehicle includes a solenoid valve connected to the air suspension and an air suspension wire harness electrically connected to the solenoid valve. The second inflation device is used for being electrically connected to the air suspension wire harness and communicating with an external air source to inflate all the air suspensions.

[0010] In some embodiments, the vehicle includes an air storage tank connected to the air suspension, and the second inflation device is used for communicating the air storage tank with the external air source to inflate the air storage tank.

[0011] In some embodiments, the second inflation device includes an inflation gun, the gas storage tank has an inflation port, and the inflation gun is used to dock with the inflation port to inflate the gas storage tank.

[0012] In some embodiments, the second inflation device is connected to an external power source or the vehicle's battery.

[0013] In some embodiments, the production line further includes:

[0014] A chassis carrier for clamping the vehicle body and capable of adjusting the height of the vehicle body;

[0015] A lifting device for lifting the air suspension to a second preset height at a first station so that the air suspension can be assembled with the vehicle body at the second preset height.

[0016] The production line provided by the embodiments of the present application pre-inflates the split air suspension through the first inflation device. The split air suspension contacts the vehicle body, enabling the split air suspension to maintain a preset position relative to the vehicle body, facilitating the subsequent stations to position and install other components based on the split air suspension.

[0017] A second aspect of the embodiments of the present application provides a vehicle manufactured according to the production line of any one of the embodiments of the present application. The vehicle includes:

[0018] A vehicle body;

[0019] An air suspension connected to the vehicle body, and the air suspension includes at least a split air suspension.

[0020] In some embodiments, the air suspension further includes a strut air suspension located at the front of the vehicle, and the split air suspension is located at the rear of the vehicle. The vehicle further includes:

[0021] A trunk connected to the vehicle body;

[0022] A gas storage tank located in the trunk;

[0023] A compressor located at the lower right rear of the vehicle floor;

[0024] Solenoid valves, and a plurality of the solenoid valves respectively control the gas storage tank and the air suspension;

[0025] An air suspension controller located in the middle of the vehicle floor.

[0026] In some embodiments, five solenoid valves that respectively control the gas storage tank and the air suspension are integrated into a five-way valve and integrated with the compressor.

[0027] The vehicle provided by the embodiment of the present application can be manufactured using the above production line.

[0028] The third aspect of the embodiment of the present application provides an on-line inflation method for a vehicle, including:

[0029] Moving the vehicle body and the air suspension including the split air suspension to the first station of the production line;

[0030] Assembling the air suspension with the vehicle body;

[0031] Using a first inflation device to control the inflation of the split air suspension to a first air pressure;

[0032] Moving the assembled vehicle body and the air suspension to the second station of the production line;

[0033] Using a second inflation device to control the inflation of all the air suspensions to a second air pressure.

[0034] In some embodiments, the step of using a first inflation device to control the inflation of the split air suspension to a first air pressure includes:

[0035] Electrically connecting the first inflation device to the compressor of the vehicle;

[0036] Controlling the compressor to inflate the split air suspension.

[0037] In some embodiments, the step of using a second inflation device to control the inflation of all the air suspensions to a second air pressure includes:

[0038] Using the second inflation device to connect the air storage tank of the vehicle to an external air source and electrically connecting it to the air suspension wire harness of the vehicle;

[0039] Controlling the external air source to inflate the air storage tank.

[0040] In some embodiments, the step of using a second inflation device to control the inflation of all the air suspensions to a second air pressure includes:

[0041] Reading the VIN code of the vehicle to obtain the inflation pressure parameter of the vehicle;

[0042] Requesting to open the solenoid valve controlling the air suspension and the air storage tank at the front of the vehicle;

[0043] Inflating the air suspension at the front to the designed pressure;

[0044] Closing the solenoid valve controlling the air suspension and the air storage tank at the front;

[0045] Requesting to open the solenoid valve controlling the air suspension and the air storage tank at the rear of the vehicle;

[0046] Inflate the air suspension at the rear to the design pressure;

[0047] Close the solenoid valve controlling the air suspension and the air storage tank at the rear;

[0048] Inflate the air storage tank to the design pressure.

[0049] The on-line inflation method provided by the embodiment of the present application inflates through the first inflation device and the second inflation device respectively. Different first inflation devices and second inflation devices can be designed according to the inflation needs. For example, the air pressure required at the first station is relatively small, and the compressor of the vehicle can be controlled to inflate, which can simplify the connection steps and reduce the device complexity. Inflation is carried out twice respectively at two different stations, namely the first station and the second station. Compared with inflating twice at the same station, a continuous production line can be formed, and the conveying line does not need to detour, which is convenient for designing the conveying line. The first station is equivalent to an assembly station for assembling the air suspension and the vehicle body. Occupying the assembly station for inflation, since the inflation time is short, the impact on the production rhythm of the overall assembly work is small.. Description of the Drawings

[0050] Figure 1 It is a schematic diagram of the partial structure of a vehicle in an embodiment of the present application, wherein the split air suspension has not been completed with the assembly of the vehicle body;

[0051] Figure 2 It is Figure 1 The enlarged view of A in

[0052] Figure 3 It is a schematic diagram of the partial structure of a vehicle in an embodiment of the present application, wherein the split air suspension has been inflated at the first station;

[0053] Figure 4 It is Figure 3 The enlarged view of B in

[0054] Figure 5 It is a schematic diagram of the partial structure of a vehicle in an embodiment of the present application, which shows a split air suspension and a strut air suspension;

[0055] Figure 6 It is a schematic diagram of the partial connection of the air path of the compressor, the air spring and the air storage tank in a vehicle in an embodiment of the present application;

[0056] Figure 7 It is a schematic diagram of the first inflation device controlling the compressor to inflate the first air spring in an embodiment of the present application;

[0057] Figure 8 It is a schematic diagram of the second inflation device inflating the air spring through an external air source in an embodiment of the present application;

[0058] Figure 9 Structural schematic diagram of a chassis carrier, a lifting device, a vehicle body, and a split air suspension in a production line in an embodiment of the present application;

[0059] Figure 10 Flow schematic diagram of an on-line inflation method in an embodiment of the present application.

[0060] Description of reference numerals

[0061] 200, production line; 210, first inflation device; 220, second inflation device; 230, chassis carrier; 240, lifting device; 100, vehicle; 10, vehicle body; 20, air suspension; 21, split air suspension; 211, first air spring; 22, strut air suspension; 221, second air spring; 30, five-way valve; 31, first control valve; 32, second control valve; 40, air suspension wire harness; 50, air storage tank; 50a, inflation port; 60, compressor; 70, third control valve; 80, air suspension controller. Detailed implementation manners

[0062] The following will describe the implementation manners of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention, rather than for limiting the protection scope of the present invention.

[0063] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0064] In the description of this specification, the descriptions referring to terms such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application and the features of different embodiments or examples.

[0065] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0066] In the related art, the air spring and the shock absorber in the split air suspension are separately arranged, and there is no pressure in the supply state. After the air spring is assembled with the white vehicle body, it cannot bear pressure, and thus it is impossible to ensure that the split air suspension is in the preset position after assembly, which is not convenient for subsequent workstations to install other components with the split air suspension as the positioning reference.

[0067] In view of this, the embodiments of this application provide a production line for a vehicle, which is used in the process of manufacturing a vehicle to make the split air suspension located at the preset position of the vehicle body after installation, which is beneficial for subsequent workstations to install other components with the split air suspension as the positioning reference.

[0068] The embodiments of this application also provide a vehicle 100. Please refer to Figures 1-5 , manufactured according to the production line provided by the embodiments of this application, the vehicle 100 includes a vehicle body 10 and an air suspension 20. The air suspension 20 is connected to the vehicle body 10, and the air suspension 20 at least includes a split air suspension 21.

[0069] The air suspension 20 can use compressed air to support the weight of the vehicle 100. By controlling the air pressure in the air spring of the air suspension 20, the air suspension 20 can automatically adjust the height of the vehicle 100 to adapt to different road conditions and driving conditions. The air suspension 20 includes an air spring and a shock absorber. According to the different settings of the air spring and the shock absorber, the air suspension 20 is divided into two types: a split air suspension 21 and a strut air suspension 22. In the split air suspension 21, the air spring and the shock absorber are separately arranged, and in the strut air suspension, the air spring and the shock absorber are integrally arranged. For the convenience of description, the air spring in the split air suspension 21 is called the first air spring 211, and the shock absorber is called the first shock absorber; the air spring in the strut air suspension 22 is called the second air spring 221, and the shock absorber is called the second shock absorber.

[0070] Exemplarily, please refer to Figure 5 , the vehicle 100 includes two air suspensions 20, one of which is a split air suspension 21 and the other is a strut air suspension 22. The strut air suspension 22 is located at the front of the vehicle 100, and the split air suspension 21 is located at the rear of the vehicle 100, where the front and the rear are referred to with reference to the direction in which the vehicle 100 travels during use. In some other embodiments not shown, the vehicle 100 includes two air suspensions 20, both of which are split air suspensions 21.

[0071] Exemplarily, the vehicle 100 further includes a trunk, and the trunk is connected to the vehicle body 10. The trunk is a space in the vehicle 100 for storing items such as luggage, tools, and spare tires, and is located at the rear of the vehicle 100.

[0072] Exemplarily, please refer to Figure 5 , the vehicle 100 further includes an air storage tank 50, and the air storage tank 50 is located in the trunk. The air storage tank 50 can store compressed gas. When the vehicle 100 needs to adjust the height of the air suspension 20 during use, the air storage tank 50 can adjust the required gas volume of the air suspension 20. The air storage tank 50 is located in the trunk, which is convenient for replenishing gas to the air storage tank 50 using an external gas source.

[0073] Exemplarily, the vehicle 100 further includes a compressor 60. For example, the compressor 60 is located at the lower right rear of the floor of the vehicle 100. The compressor 60 can supply gas to the air suspension 20, for example, compress air and transport it to the air storage tank 50.

[0074] Exemplarily, the vehicle 100 further includes an air suspension controller 80 for monitoring and adjusting the operating state of the air suspension 20. The air suspension controller 80 can be arranged in the middle of the floor of the vehicle 100. In this way, it is convenient to repair the air suspension controller 80.

[0075] Please refer to Figure 6, which shows a schematic diagram of the main air circuit connection of the air suspension 20 of a vehicle in some embodiments. For ease of explanation, the solenoid valve of the air suspension 20 is referred to as the first control valve 31, and there are four first control valves 31. The solenoid valve of the air storage tank 50 is referred to as the second control valve 32, and there is one first control valve 31. Of course, according to control requirements, more air circuits and solenoid valves can be provided for control. The compressor 60 is respectively connected to each air spring of the air suspension 20 through pipelines. The air springs are, for example, the first air spring 211 and the second air spring 221; the air storage tank 50 is respectively connected to each air spring of the air suspension 20 through pipelines. Solenoid valves are provided on each pipeline. Each solenoid valve can be an independent valve body, or the solenoid valve can also be an integrated multi-way valve, such as the five-way valve 30, which includes four first control valves 31 and one second control valve 32. By controlling the opening and closing of the solenoid valve, the gas in the corresponding pipeline can be connected or disconnected.

[0076] Please refer to Figure 7 and Figure 8 , the production line 200 includes a first inflation device 210 and a second inflation device 220. The first inflation device 210 is located at the first station and is used to control the split air suspension 21 to be inflated to a first preset air pressure, so that the split air suspension 21 contacts the vehicle body 10 to a preset position; the second inflation device 220 is located at the second station, and the second station is downstream of the first station. The second inflation device 220 is used to respectively control all the air suspensions 20 to be inflated to a second preset air pressure, so that the vehicle body 10 is maintained at the first preset height.

[0077] The production line 200 provided by the embodiments of the present application pre-inflates the split air suspension 21 through the first inflation device 210, and the split air suspension 21 contacts the vehicle body 10, so that the split air suspension 21 can be maintained relative to the vehicle body 10 to a preset position, which is convenient for subsequent stations to install other components based on the positioning of the split air suspension 21.

[0078] By using the first inflation device 210 and the second inflation device 220 to inflate respectively, different first inflation devices 210 and second inflation devices 220 can be designed according to the inflation needs. For example, the air pressure required at the first station is small, and the compressor of the vehicle 100 can be used for inflation, which can simplify the connection steps and reduce the complexity of the device. Inflating twice at two different stations, namely the first station and the second station, can form a continuous production line compared with inflating twice at the same station, and the conveying line does not need to detour, which is convenient for designing the conveying line.

[0079] When the vehicle body 10 reaches the first station, the state where the components have not been assembled is completed, and the air springs of all the air suspensions 20 have not been inflated when reaching the first station (combined with Figure 1 and Figure 2)。Exemplarily, with reference to Figure 8 , the production line 200 further includes a chassis carrier 230 for clamping the vehicle body 10 and capable of adjusting the height of the vehicle body 10. For example, the chassis carrier 230 can move along a preset track on the production line. The chassis carrier 230 clamps the vehicle body 10 to reach the first station and the second station. The vehicle body 10 is assembled with all the air suspensions 20 at the first station. After the vehicle body 10 and the air suspensions 20 are assembled, there may be other stations between the first station and the second station for installing other components such as wheels. When at the first station and the second station, the wheels are in a state of being off the ground, where the first station is at a high station and the second station is at a low station.

[0080] After the split air suspension 21 is assembled with the vehicle body 10, since the air spring has not been inflated when reaching the first station and the first air spring 211 and the first shock absorber in the split air suspension 21 are separately arranged, after the split air suspension 21 is assembled with the vehicle body 10, the first air spring 211 is not in the preset position.

[0081] To place the split air suspension 21 in the preset position, the split air suspension 21 is inflated after assembly (with reference to Figure 3 and Figure 4 ). Inflating the split air suspension 21 at the first station can be understood as pre-inflation, and inflating all the air suspensions 20 at the second station can be understood as main inflation. It can be understood that inflating the air suspension 20 means inflating the air spring in the air suspension 20. After inflating all the air suspensions 20 to the second preset air pressure at the second position, they can all bear the pressure to keep the vehicle body 10 at the first preset height.

[0082] It should be noted that the preset position refers to the position that the vehicle body 10 needs to be in before reaching the second station after being assembled with the air suspension 20. Exemplarily, please refer to Figure 9 , the production line 200 further includes a chassis carrier 230 and a lifting device 240. The chassis carrier 230 is used for clamping the vehicle body 10 and capable of adjusting the height of the vehicle body 10; the lifting device 240 is used for lifting the air suspension 20 to the second preset height at the first station so that the air suspension 20 can be assembled with the vehicle body 10 at the second preset height. Through the mutual cooperation of the chassis carrier 230 and the lifting device 240, the air suspension 20 can be assembled with the vehicle body 10 at the second preset height. That is to say, before the air suspension 20 is assembled with the vehicle body 10, it is first lifted to the second preset height. After assembly, the first inflation device 210 inflates the split air suspension 21 to the first preset air pressure, so that the split air suspension 21 contacts the vehicle body 10 to the preset position.

[0083] The upper and lower limit structures of the first air spring 211 of the split air suspension 21 are respectively in good cooperation with the vehicle body 10 and the swing arm, maintaining a contact state. The first inflation device 210 pre-inflates the first air spring 211, and only after reaching the set pressure can the lifting device 240 be released. The vehicle 100 is transferred to the subsequent workstations to complete the installation of tires, etc. The first air spring 211 is still in good cooperation with the vehicle body 10 and the swing arm, so that the split air suspension 21 is in a preset position relative to the vehicle body 10.

[0084] In some embodiments, referring to Figures 5-8 , the vehicle 100 includes a compressor 60 connected to the air suspension 20. The first inflation device 210 is used to be electrically connected to the compressor 60 to control the compressor 60 to inflate the split air suspension 21. In other embodiments not shown, the first inflation device 210 inflates the air suspension 20 by connecting to an external air source. For example, the vehicle 100 includes an air storage tank 50 connected to the air suspension 20. The first inflation device 210 is used to connect the air storage tank 50 to the external air source to inflate the air storage tank 50.

[0085] It can be understood that the electrical connection can include a power supply connection and / or a communication connection, which should be understood according to the actual application scenarios in this field. The production line 200 includes an external air source, such as the air source used in the factory workshop for production.

[0086] It can be understood that in the embodiments of the present application, the electrical connection is achieved through wires, and the gas circuit is achieved through pipelines, which will not be elaborated here.

[0087] Exemplarily, the first preset air pressure is relatively small. For example, it can be 1.8 - 2.2 bar (bar), such as 1.8 bar, 1.9 bar, 2.0 bar, 2.1 bar or 2.2 bar, etc. 1 bar = 1 standard atmosphere (atm). That is to say, the first inflation device 210 only needs to supply less air to the split air suspension 21, and can keep the first air spring 211 in the preset position after inflation. Therefore, the inflation time is short, reducing the possibility of failures such as overheating due to the long working time of the compressor 60. At the same time, the first workstation is equivalent to the assembly workstation for assembling the air suspension 20 on the vehicle body 10. Since the inflation time is short, the impact on the production rhythm of the overall vehicle assembly work is small.

[0088] Exemplarily, the first inflation device 210 can be self-powered or connected to an external power source. The external power source refers to the power source used in the factory workshop where the production line 200 is located.

[0089] Exemplarily, the first inflation device 210 includes a first industrial control computer, a first power control module, and a first current collector. The first industrial control computer is the control core of the first inflation device, responsible for running the control program and managing the entire inflation process. The first power control module is a module for managing the power distribution and control of the first inflation device, ensuring that each component obtains a stable power supply. The first current collector is used to measure and collect current signals and monitor current stability.

[0090] For example, please refer to Figure 8 , the second inflation device 220 is used to connect the gas storage tank 50 to an external air source to inflate the gas storage tank 50. Thus, since the gas storage tank 50 is generally located in the trunk, and the compressor 60 is generally located at the lower right rear of the floor of the vehicle 100, there is no need to disassemble the assembled parts of the vehicle, facilitating quick inflation operations. The air suspension 20 is inflated through the gas storage tank 50, and after inflation, the gas storage tank 50 can be inflated continuously.

[0091] Exemplarily, the second inflation device 220 further includes an inflation gun. The gas storage tank 50 has an inflation port 50a, and the inflation gun is used to dock with the inflation port 50a to inflate the gas storage tank 50. Thus, during use, it is only necessary to make the inflation gun dock with the inflation port 50a for connection, which is easy to operate, convenient and fast.

[0092] The second preset air pressure is higher than the first preset air pressure. It can be understood that the second preset air pressure is relatively large. Compressing air by the compressor 60 to supply the air spring causes relatively large losses to the compressor 60, and the compressor 60 may malfunction after long-term use, affecting its service life. Therefore, in some embodiments, the second inflation device 220 inflates the air suspension 20 by connecting to an external air source.

[0093] Exemplarily, the second inflation device 220 includes a second industrial control computer, a second power control module, a second current collector, and a pressure converter. The second industrial control computer is the control core of the second inflation device, responsible for running the control program and managing the entire inflation process. The second power control module is a module for managing the power distribution and control of the second inflation device, ensuring that each component obtains a stable power supply. The second current collector is used to measure and collect current signals and monitor current stability. The pressure converter can adjust the air pressure provided by the second inflation device through an external air source. For example, it can adjust the gas pressure provided after inflating the air spring of the air suspension and before inflating the gas storage tank alone.

[0094] Exemplarily, the second inflation device 220 has its own power supply or is connected to an external power supply. Electrical energy is provided by the power supply used in the factory workshop where the production line 200 is located.

[0095] Exemplarily, the second inflation device 220 turns on the battery of the vehicle 100. Electrical energy is provided by the battery of the vehicle 100.

[0096] Exemplarily, please refer to Figure 5 , Figure 6 and Figure 8 , the vehicle 100 includes a solenoid valve connected to the air suspension 20 and an air suspension wire harness 40 electrically connected to the solenoid valve. The second inflation device 220 is used to be electrically connected to the air suspension wire harness 40 and communicate with an external air source to inflate all the air suspensions 20. The air suspension wire harness 40 includes multiple wire harnesses, which are correspondingly connected to the solenoid valves of the air storage tank and each air spring. The solenoid valve is used to control whether gas is introduced into the air storage tank and the air spring.

[0097] Exemplarily, please refer to Figure 8 , the vehicle 100 includes a five-way valve 30, and the five-way valve 30 includes five solenoid valves that respectively control the air storage tank 50 and the air suspension 20. The five-way valve 30 is used to control whether gas is introduced into the air storage tank 50 and the four air springs. For example, one of them is the solenoid valve for the air storage tank, two of them are the solenoid valves for the split air suspension 21, and the other two are the solenoid valves for the strut air suspension 22. By providing the five-way valve 30, the installation of the solenoid valve is simplified.

[0098] Exemplarily, the five-way valve 30 is integrally provided with the compressor 60, which can reduce the equipment complexity, reduce the occupied space, make the structural layout more compact, and facilitate the later maintenance and processing.

[0099] An on-line inflation method for a vehicle 100, please refer to Figure 10 , including:

[0100] S1: Move the vehicle body and the air suspension including the split air suspension to the first station of the production line;

[0101] S2: Assemble the air suspension with the vehicle body;

[0102] S3: Use the first inflation device to control the split air suspension to inflate to the first air pressure;

[0103] S4: Move the assembled vehicle body and air suspension to the second station of the production line;

[0104] S5: Use the second inflation device to control all the air suspensions to inflate to the second air pressure.

[0105] In this way, after the air suspension 20 is assembled with the vehicle body 10, the split air suspension 21 is inflated so that the split air suspension 21 can be in a preset position, facilitating the subsequent stations to position and install other components based on the split air suspension 21.

[0106] Inflation is carried out separately through the first inflation device 210 and the second inflation device 220. Different first inflation device 210 and second inflation device 220 can be designed according to inflation requirements. For example, since the air pressure required at the first station is relatively small, inflation can be carried out by controlling the compressor of the vehicle 100, which can simplify the connection steps and reduce the complexity of the device. Inflation is carried out twice respectively at two different stations, namely the first station and the second station. Compared with carrying out inflation twice at the same station, a continuous production line can be formed, and the conveying line does not need to be circuitous, which is convenient for designing the conveying line. The first station is equivalent to an assembly station for assembling the air suspension and the vehicle body. Occupying the assembly station for inflation has little impact on the production rhythm of the overall assembly work due to the short inflation time.

[0107] The on-line inflation method of the vehicle 100 provided by the embodiment of the present application can be used in the production line of the vehicle 100 provided by the embodiment of the present application. When manufacturing the vehicle 100 provided by the embodiment of the present application, this on-line inflation method can be adopted.

[0108] In some embodiments, after the step of entering the first station of the production line with the vehicle body and the air suspension including the split air suspension and before the step of assembling the air suspension and the vehicle body, the inflation method further includes:

[0109] Using a lifting device to lift the air suspension to a second preset height.

[0110] In some embodiments, the step of using the first inflation device to control the inflation of the split air suspension to the first air pressure includes:

[0111] Electrically connecting the first inflation device to the compressor of the vehicle;

[0112] Controlling the compressor to inflate the split air suspension.

[0113] In this way, only the first inflation device 210 needs to control the compressor 60 to inflate the split air suspension 21, and no external air source needs to be provided at the first station. It can reduce operation steps such as connecting to the external air source and improve the inflation efficiency.

[0114] In some embodiments, the step of using the second inflation device to control the inflation of all air suspensions to the second air pressure includes:

[0115] Using the second inflation device to connect the air storage tank of the vehicle to the external air source and electrically connect it to the air suspension wire harness of the vehicle;

[0116] Controlling the external air source to inflate the air storage tank.

[0117] In this way, it is only necessary to connect the charging port 50a of the air tank 50 and charge the air suspension 20 through the air tank 50, so that the air tank 50 and the air suspension 20 can be charged at the same time. The second preset air pressure is relatively large, and the compressor 60 compresses air to provide it to the air spring, which causes great loss to the compressor 60. Long-term use of the compressor 60 may cause failure, affecting the service life.

[0118] In some embodiments, the step of using the second inflation device to control all air suspensions to be inflated to the second air pressure includes:

[0119] Read the vehicle's VIN code and obtain the vehicle's inflation pressure parameters;

[0120] Request to open the solenoid valves that control the air suspension and air tank at the front of the vehicle;

[0121] Inflate the front air suspension to the design pressure;

[0122] Close the solenoid valves that control the front air suspension and air tank;

[0123] Request to open the solenoid valves that control the air suspension and air tank at the rear of the vehicle 100;

[0124] Inflate the rear air suspension to the design pressure;

[0125] Close the solenoid valves that control the rear air suspension and air tank;

[0126] Inflate the gas tank to the design pressure.

[0127] The air suspension 20 is inflated through the air tank 50, and the air tank 50 is continuously inflated after the inflation, which can simplify the inflation process. The inflation pressure parameters of the vehicle 100 are obtained before inflation, so that the air suspension and the air tank are inflated to the design pressure in a targeted manner.

[0128] The inflation pressure parameters include: the design pressures of the air tank 50 , the first air spring 211 , and the second air spring 221 .

[0129] For example, please refer to Figure 6 When the second control valve 32 is closed, the external gas source can only inflate the gas storage tank 50 .

[0130] For example, please refer to Figure 6 , in the first working position, the first control valve 31 of the split air suspension 21 is controlled to open, and the second control valve 32 and the third control valve 70 are controlled to open, so that the first inflation device 210 controls the compressor 60 to provide gas to the split air suspension 21. Or, in the first working position, the first control valve 31 of the split air suspension 21 is controlled to open, and the third control valve 70 is controlled to open, and the second control valve 32 is closed.

[0131] Exemplarily, please refer to Figure 6 , at the second station, control all the first control valves 31 to open, and the second control valve 32 to open, and the third control valve 70 to close, so that the second inflation device 220 can supply gas to the split air suspension 21 through an external air source.

[0132] In some embodiments, the second inflation device includes an alarm mechanism. After the step of inflating the gas storage tank to the designed pressure, the online inflation method includes:

[0133] Obtain the inflation pressures of the gas storage tank, the first air spring, and the second air spring;

[0134] If the inflation pressures of the gas storage tank, the first air spring, and the second air spring are less than the designed pressure, issue an alarm reminder.

[0135] The inflation pressure refers to the real-time pressure data obtained by actual measurement, and the designed pressure refers to the target pressure value to be achieved in the inflation pressure parameters. By setting the alarm mechanism, the inflation effect can be monitored to avoid affecting the production quality of the vehicle due to poor inflation effect.

[0136] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are within the protection scope of the present invention.

Claims

1. A production line of a vehicle, characterized in that, The vehicle includes a vehicle body and an air suspension. The air suspension includes at least a split air suspension. The production line includes: A first inflation device, located at a first station, for controlling the split air suspension to be inflated to a first preset air pressure, so that the split air suspension contacts the vehicle body at a preset position; A second inflation device, located at a second station, which is downstream of the first station. The second inflation device is used to respectively control all the air suspensions to be inflated to a second preset air pressure, so that the vehicle body is maintained at a first preset height.

2. The production line according to claim 1, wherein The vehicle includes a compressor connected to the air suspension. The first inflation device is used to be electrically connected to the compressor to control the compressor to inflate the split air suspension.

3. The production line according to claim 1, wherein, The vehicle includes a solenoid valve connected to the air suspension and an air suspension wiring harness electrically connected to the solenoid valve. The second inflation device is used to be electrically connected to the air suspension wiring harness and communicate with an external air source to inflate all the air suspensions.

4. The production line according to claim 3, characterized in that, The vehicle includes an air storage tank connected to the air suspension. The second inflation device is used to communicate the air storage tank with the external air source to inflate the air storage tank.

5. The production line according to claim 4, characterized in that, The second inflation device includes an inflation gun. The air storage tank has an inflation port. The inflation gun is used to dock with the inflation port to inflate the air storage tank.

6. The production line according to claim 3, characterized in that, The second inflation device is connected to an external power supply or the vehicle's battery.

7. The production line according to claim 1, wherein The production line further includes: A chassis fixture for clamping the vehicle body and capable of adjusting the height of the vehicle body; A lifting device for lifting the air suspension to a second preset height at the first station, so that the air suspension can be assembled with the vehicle body at the second preset height.

8. A vehicle, characterized in that, Manufactured according to the production line of any one of claims 1 to 7, the vehicle includes: A vehicle body; An air suspension connected to the vehicle body. The air suspension includes at least a split air suspension.

9. The vehicle according to claim 8, characterized in that, The air suspension further includes a strut air suspension located at the front of the vehicle, and the split air suspension is located at the rear of the vehicle. The vehicle further includes: A trunk connected to the vehicle body; An air storage tank located in the trunk; A compressor located at the lower right rear of the vehicle floor; Solenoid valves. A plurality of solenoid valves respectively control the air storage tank and the air suspension; An air suspension controller located in the middle of the vehicle floor.

10. The vehicle according to claim 9, characterized in that, Five solenoid valves respectively controlling the air storage tank and the air suspension are integrated into a five-way valve and are integrally arranged with the compressor.

11. An online inflation method for a vehicle, characterized in that, Including: Putting the vehicle body and the air suspension including the split air suspension into the first station of the production line; Assembling the air suspension with the vehicle body; Using the first inflation device to control the split air suspension to be inflated to a first air pressure; Putting the assembled vehicle body and air suspension into the second station of the production line; Using the second inflation device to control all the air suspensions to be inflated to a second air pressure.

12. The online inflation method according to claim 11, wherein, The step of using the first inflation device to control the split air suspension to be inflated to a first air pressure includes: Electrically connecting the first inflation device to the compressor of the vehicle; Controlling the compressor to inflate the split air suspension.

13. The online inflation method according to claim 11, characterized in that, The steps of using the second inflation device to control all the air suspensions to be inflated to the second air pressure include: Using the second inflation device to connect the vehicle's air storage tank to an external air source and electrically connect it to the vehicle's air suspension wiring harness; Controlling the external air source to inflate the air storage tank.

14. The online inflation method according to any one of claims 11 to 13, characterized in that, The steps of using the second inflation device to control all the air suspensions to be inflated to the second air pressure include: Reading the VIN code of the vehicle to obtain the inflation pressure parameter of the vehicle; Requesting to open the solenoid valve that controls the air suspension and the air storage tank at the front of the vehicle; Inflating the air suspension at the front to the design pressure; Closing the solenoid valve that controls the air suspension and the air storage tank at the front; Requesting to open the solenoid valve that controls the air suspension and the air storage tank at the rear of the vehicle; Inflating the air suspension at the rear to the design pressure; Closing the solenoid valve that controls the air suspension and the air storage tank at the rear; Inflating the air storage tank to the design pressure.

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