Pneumatic control system with side wings, car seat and method of pneumatic control

Abstract

The application provides a side wing follow-up pneumatic control system, an automobile seat and a pneumatic control method. The first pneumatic bag body and the second pneumatic bag body which are independent of each other are arranged in the chair back side wing of the automobile seat, the first pneumatic bag body is used for realizing a follow-up function, the second pneumatic bag body is used for realizing a supporting function, and the gas storage device is additionally arranged to charge the first pneumatic bag body on the side opposite to the turning direction when the automobile turns. Compared with the prior art, the pneumatic bag bodies for follow-up adjustment and supporting adjustment are separately arranged in the seat side wing and do not interfere with each other, so that the problem of follow-up function failure caused by the supporting adjustment of the automobile side wing restricting the follow-up adjustment is avoided. When the automobile turns, the increased gas storage device can help the gas source to be quickly charged into the side wing opposite to the turning direction, timely provides more suitable supporting effect for the body of the people on the inclined side, and improves the driving and riding feeling of the people.

Description

Technical Field

[0001] This application relates to the field of automotive pneumatic control technology, specifically to a side-wing responsive pneumatic control system, an automotive seat, and a pneumatic control method. Background Technology

[0002] In recent years, my country's transportation sector has developed rapidly. As one of the most commonly used means of transportation, people have increasingly higher requirements for the driving and riding experience of automobiles. The backrest and seat cushion of a car seat are symmetrically equipped with side wings. The side wings have the functions of support and follow-up. When the car is driving straight, the airbags in the left and right side wings are raised. The support function of the airbags will give people a feeling of being wrapped up, thereby improving driving comfort. However, during the turning process, the people in the car will lean in the opposite direction due to inertia. At this time, the side wings in the opposite direction need to perform the follow-up function, that is, the airbags need to be raised higher to provide better support for the leaning body.

[0003] In existing technology, the seat side wing follow-up adjustment and support adjustment use the same set of airbags. When the airbag is inflated to its maximum extent by the support adjustment, it cannot inflate further when turning, causing the follow-up adjustment to be ineffective. The side wing opposite to the turning direction cannot provide a more fitting support for the body on the tilted side, affecting the driving and riding experience. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a pneumatic control system with movable side wings, an automobile seat and a pneumatic control method, which are disposed in the automobile seat, the automobile seat having two side wings on the left and right sides of the seat back;

[0005] In a first aspect, this application provides a side-wing servo aerodynamic control system, comprising:

[0006] The air-operated assembly includes at least one first airbag and at least one second airbag disposed within each of the side wings and arranged along a first direction. The first airbag has an inflated and a retracted state. When the vehicle turns, the first airbag on the opposite side of the turning direction is in the inflated state, and when the vehicle returns to its straight position, the first airbag on the opposite side of the turning direction switches to the retracted state. The second airbag provides support.

[0007] At least one first pneumatic mechanism, each first pneumatic mechanism being connected to each first pneumatic bladder, is used to switch the state of each first pneumatic bladder when the vehicle turns;

[0008] At least one second pneumatic mechanism, each second pneumatic mechanism being connected to each second pneumatic bladder, for controlling the inflation and deflation of each second pneumatic bladder;

[0009] a gas supply assembly, the gas supply assembly comprising a gas source, the gas source supplying gas to the first pneumatic mechanism via a first gas path and / or supplying gas to the second pneumatic mechanism via a second gas path;

[0010] The gas supply assembly further comprises a gas storage device and a first switch valve, one end of the first switch valve being in communication with the gas storage device, and the other end being in communication with the gas source and each of the first pneumatic mechanisms; the first switch valve is used to control the opening and closing of the gas path between the gas storage device and the gas source and between the gas storage device and the first pneumatic mechanism; when the vehicle is turning, the first switch valve is opened, the gas storage device is discharged, and the first pneumatic mechanism is opened to supply gas to the first pneumatic body at the same time as the gas source.

[0011] According to the technical scheme provided by the embodiments of the present application, the gas storage device is provided with a first gas pressure sensor away from the side of the first switch valve, the first gas pressure sensor is used to detect the real-time gas pressure in the gas storage device, when the real-time gas pressure is less than or equal to a first pressure threshold, the first switch valve is opened to control the gas path communication between the gas source and the gas storage device, and the gas source charges the gas storage device, when the real-time gas pressure is greater than or equal to a second pressure threshold, the first switch valve is closed, and the gas source stops charging the gas storage device.

[0012] According to the technical scheme provided by the embodiments of the present application, the gas source is connected with a third pneumatic mechanism away from the side of the gas storage device, the third pneumatic mechanism has a first state and a second state, when the vehicle is turning, the third pneumatic mechanism is in the first state, at this time, gas is only supplied to the first pneumatic mechanism along the first gas path, when the vehicle is driving forward, the third pneumatic mechanism is in the second state, at this time, gas can be supplied to the first pneumatic mechanism along the first gas path, and gas can also be supplied to the second pneumatic mechanism along the second gas path; the gas outlet end of the gas source is provided with a second switch valve, the second switch valve is used to control the gas supply of the gas source to the gas assembly and / or the gas storage device.

[0013] According to the technical scheme provided by the embodiments of the present application, a second gas pressure sensor is arranged on the first gas path, the second gas pressure sensor is used to detect the real-time gas pressure in the first pneumatic body, when the real-time gas pressure is greater than or equal to a third pressure threshold, the first switch valve and the second switch valve are closed, and / or the first pneumatic mechanism charging passage is closed.

[0014] According to the technical scheme provided by the embodiments of the present application, the second pneumatic mechanism further comprises:

[0015] a first gas valve, the first gas valve having a first gas port, a second gas port and a third gas port, the first gas port being in communication with the second pneumatic body, and the second gas port being in communication with the third pneumatic mechanism;

[0016] The second air valve is connected in series with the first air valve. The second air valve has a fourth air port and a fifth air port. The third air port is connected to the fourth air port, and the fifth air port is connected to the external environment.

[0017] The second pneumatic bladder has an inflated state, a pressure-holding state, and a retracted state; when the second pneumatic bladder is in the inflated state, the first air port is connected to the second air port and disconnected from the third air port; when the second pneumatic bladder is in the pressure-holding state, the first air port is connected to the third air port and the fourth air port is disconnected from the fifth air port; when the second pneumatic bladder is in the retracted state, the first air port is connected to the third air port and the fourth air port is connected to the fifth air port.

[0018] According to the technical solution provided in the embodiments of this application, the first pneumatic mechanism is a two-position three-way valve corresponding to each of the first pneumatic bladders.

[0019] According to the technical solution provided in the embodiments of this application, the air-using component further includes a third pneumatic bladder and / or a fourth pneumatic bladder. The third pneumatic bladder is used for massage, and the fourth pneumatic bladder is used for waist support. Gas is inflated into the third pneumatic bladder and the fourth pneumatic bladder via the second air passage.

[0020] According to the technical solution provided in the embodiments of this application, the pneumatic control system includes at least one first pneumatic mechanism and / or at least one second pneumatic mechanism, a third pneumatic mechanism, a first air pressure sensor, a second air pressure sensor, and at least one third air pressure sensor. Each of the third air pressure sensors is used to detect the pressure inside the third pneumatic bladder and the fourth pneumatic bladder. It also includes an electronic control unit and a housing assembly. All the above components are integrated into the housing assembly to form a control valve assembly.

[0021] In a second aspect, this application provides a car seat with movable side wings, comprising: a plurality of seat pneumatic control systems with movable side wings as described in any one of claims 1-8 are installed on the car seat, the seat cushion and / or backrest are provided with side wings, and a first pneumatic bladder is disposed within the side wings of the seat cushion and / or backrest; the car seat further comprises a seat frame, a seat foam, and a seat cover, and the first pneumatic bladder is disposed between the seat frame and the seat foam or between the seat foam and the seat cover.

[0022] Thirdly, this application provides a side-wing servo aerodynamic control method, comprising the following steps:

[0023] In response to the real-time gas pressure of the gas storage device;

[0024] When the real-time gas pressure is less than or equal to the first pressure threshold, the first switch valve and the second switch valve are opened, and the gas source charges the gas storage device; when the real-time gas pressure is greater than or equal to the second pressure threshold, the first switch valve and the second switch valve are closed.

[0025] In response to a vehicle turning signal, the third pneumatic mechanism is shut down;

[0026] Open the first switch valve and the first pneumatic mechanism inflation channel, and the air storage device inflates the first pneumatic bladder on the side opposite to the turning direction of the vehicle, causing the first pneumatic bladder to inflate.

[0027] And / or open the second switch valve, and the air source inflates the first pneumatic bladder on the side opposite to the turning direction of the vehicle, accelerating the inflation of the first pneumatic bladder;

[0028] In response to the vehicle stop turning signal, the first switch valve is closed, the first pneumatic mechanism venting passage is opened, and the first pneumatic bladder retracts.

[0029] In summary, this application proposes a side-wing-adjustable pneumatic control system, an automotive seat, and a pneumatic control method. It achieves the following function by setting independent first pneumatic bladders within the seat cushion and backrest side wings of the automotive seat, and a second pneumatic bladder for support. An air storage device is added to inflate the first pneumatic bladder on the opposite side of the turning direction when the car is turning. Compared to traditional technologies, the separate placement of the following-adjustment and support-adjustment pneumatic bladders within the seat side wings prevents interference, thus avoiding the problem of the following-adjustment function failing due to the support-adjustment of the car side wings hindering the following-adjustment. When the car is turning, the added air storage device helps the air source quickly inflate the side wing opposite to the turning direction, providing more fitting support to the leaning side of the body and improving the driving and riding experience. Attached Figure Description

[0030] Figure 1 A schematic diagram illustrating the working principle of a side-wing servo aerodynamic control system (shared air source) provided in an embodiment of this application;

[0031] Figure 2 A schematic diagram illustrating the working principle of the first and second pneumatic bladders when using independent air sources, as provided in the embodiments of this application;

[0032] Figure 3 A schematic diagram of the integrated control valve group of a side-following pneumatic control system provided in an embodiment of this application;

[0033] Figure 4A diagram showing the air path when the air source supplies air to the air storage device when the pneumatic control system for side wing movement provided in this application is not in operation;

[0034] Figure 5 A diagram showing the air path of the air storage device and / or the air supply for the follow-up side wing in a pneumatic control system provided in this application embodiment when the vehicle is turning;

[0035] Figure 6 An airflow diagram illustrating the side-wing-responsive pneumatic control system provided in this application embodiment when performing massage and support functions;

[0036] Figure 7 This is a schematic diagram of the structure of the first pneumatic mechanism provided in an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of the first switching valve provided in an embodiment of this application;

[0038] Figure 9 This is a structural diagram of the first switching valve provided in an embodiment of this application when it is a check valve;

[0039] Figure 10 This is a schematic diagram of the structure of the third pneumatic mechanism provided in the embodiments of this application;

[0040] Figure 11 A flowchart of a side-wing servo aerodynamic control method provided in an embodiment of this application;

[0041] The text labels in the image represent:

[0042] 1. Air source; 2. Air storage device; 3. Second switching valve; 4. First air pressure sensor; 5. First switching valve; 6. First air path; 7. Third air path; 8. Third pneumatic mechanism; 9. First pneumatic bladder; 10. First pneumatic mechanism; 11. Second air pressure sensor; 12. Third air pressure sensor; 13. Second air path; 14. Second pneumatic bladder; 15. Second pneumatic mechanism; 16. Third pneumatic bladder; 17. Fourth pneumatic mechanism; 18. Fourth pneumatic bladder; 19. Fifth pneumatic mechanism; 20. First air pump; 21. Second air pump; 22. Air storage device inlet; 23. Air source inlet; 24. Air path plug; 25. Electronic control unit (ECU); 26. First valve body; 27. First coil; 28. First elastic component; 29. ​​Silicone cap; 30. First air valve; 31. Second air valve. Detailed Implementation

[0043] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] Example 1

[0046] As mentioned in the background section, in view of the problems in the prior art, this application proposes a side-wing movable seat pneumatic control device, which is installed in a car seat, the car seat having two side wings on the left and right sides of the seat back, including:

[0047] The pneumatic assembly includes at least one first pneumatic bladder 9 and at least one second pneumatic bladder 14 arranged along a first direction within each of the side wings. The first pneumatic bladder 9 has an inflated and a retracted state. When the car turns, the first pneumatic bladder 9 on the opposite side of the turning direction is in the inflated state. When the car returns to straight, the first pneumatic bladder 9 on the opposite side of the turning direction switches to the retracted state. The second pneumatic bladder 14 provides support. Optionally, the first direction is perpendicular to the back of the car seat. The first pneumatic bladder 9 is used to realize the side wing follow-up function. The follow-up function provides more fitting support to the body on the tilted side during the car turning process. The support function automatically sets the degree of inflation according to the body shape when the human body sits in the car seat, so that the degree of inflation can wrap around the human body's waist and back.

[0048] At least one first pneumatic mechanism 10 is provided, each first pneumatic mechanism 10 being connected to each first pneumatic bladder 9, for switching the state of each first pneumatic bladder 9 when the car turns; optionally, the first pneumatic mechanism 10 includes one on each of the left and right sides, for controlling the inflation and deflation of the first pneumatic bladder 9 on the corresponding side; when the inflation channel of the first pneumatic mechanism 10 is opened, the first pneumatic mechanism 10 gradually enters the inflated state; when the inflation channel of the first pneumatic bladder 9 is closed and the deflation channel is opened, the first pneumatic mechanism 10 gradually enters the retracted state. In a certain scenario, when the car turns left, the body tilts to the right due to inertia, and the inflation channel of the first pneumatic mechanism 10 in the right wing of the seat back opens. At this time, the right wing inflates to a higher degree, which is sufficient to support the tilted body. When the car turns right back to center, the deflation channel of the first pneumatic mechanism 10 opens, and the first pneumatic bladder 9 in the right wing gradually retracts.

[0049] At least one second pneumatic mechanism 15 is provided, and each second pneumatic mechanism 15 is connected to each second pneumatic bladder 14 for controlling the inflation and deflation of each second pneumatic bladder 14. Optionally, when a person is sitting in a car seat, the second pneumatic mechanism 15 can control the second pneumatic bladder 14 to inflate to a level that can wrap around the person's waist and back or be used as a passive side wing support for the seat. When the car seat is unoccupied, the second pneumatic mechanism 15 controls the second pneumatic bladder 14 to deflate back to its original state. Passive side wing support refers to side wing support that is inflated or deflated by the user according to the user's active will under normal circumstances. It can be called static side wing support. The first pneumatic bladder 9 triggered by the vehicle turning is generally called active side wing support or follow-up side wing support.

[0050] An air supply assembly includes an air source 1, which supplies air to the first pneumatic mechanism 10 via a first air passage 6 and / or to the second pneumatic mechanism 15 via a second air passage 13. The air supply assembly also includes an air storage device 2 and a first switching valve 5. One end of the first switching valve 5 is connected to the air storage device 2, and the other end is connected to the air source 1 and each of the first pneumatic mechanisms 10. The first switching valve 5 is used to control the air passage connection between the air storage device 2 and the air source 1, and between the air storage device 2 and the first pneumatic mechanism 10. When the vehicle turns, the first switching valve 5 opens, the air storage device 2 releases air, and the inflation channel of the first pneumatic mechanism 10 opens, allowing it to supply air to the first pneumatic bladder 9 simultaneously with the air source 1.

[0051] Specifically, the statement that the gas storage device 2 can supply air to the first pneumatic bladder 9 simultaneously with the gas source 1 means that it can supply air to the first pneumatic bladder 9 at the same time as the gas source 1, or that the gas source 1 can be turned off and only the gas storage device 2 supplies air to the first pneumatic bladder 9.

[0052] Optionally, the air source 1 is an air pump, but is not limited to an air pump, such as... Figure 1 As shown, the first pneumatic bladder 9 and the second pneumatic bladder 14 can share a single air source 1 or use independent air sources 1; when the first pneumatic bladder 9 and the second pneumatic bladder 14 use independent air sources 1, inflation and deflation can be achieved without interference between them; as Figure 2 As shown, when the air source 1 is used independently, the first air pump 20 supplies air to the first pneumatic bladder 9, and the second air pump 21 supplies air to the second pneumatic bladder 14.

[0053] The gas storage device 2 can be a gas tank or gas box located in the trunk or cabin of a vehicle; there is a third air passage 7 between the first switch valve 5 and the gas storage device 2. The first switch valve 5 can control the opening and closing of the first air passage 6 and the third air passage 7. When the first switch valve 5 is open, the gas source 1 supplies gas to the gas storage device 2 through the first air passage 6 and the third air passage 7 to inflate the gas storage device 2. When the car turns, the gas storage device 2 supplies gas to the first pneumatic mechanism 10 through the third air passage 7 and the first air passage 6. When the car is traveling in the forward direction and there is no need to inflate the first pneumatic bladder 9, the gas storage device 2 can also inflate the second pneumatic bladder 14.

[0054] The airbags for follow-up adjustment and support adjustment are set separately in the side wing of the seat, so that they do not interfere with each other. This avoids the problem of follow-up function failure caused by the support adjustment of the side wing of the car interfering with the follow-up adjustment. When the car turns, the added air storage device 2 can help the air source 1 to quickly inflate the side wing opposite to the turning direction, and provide more fitting support for the body on the tilted side in a timely manner, thus improving the driving and riding experience.

[0055] As shown in the figure, further, a first pressure sensor 4 is provided on the side of the air storage device 2 away from the first switching valve 5. The first pressure sensor 4 is used to detect the real-time air pressure in the air storage device 2. When the real-time air pressure is less than or equal to a first pressure threshold (70-80 kPa), the first switching valve 5 opens, controlling the air passage connection between the air source 1 and the air storage device 2, and the air source 1 inflates the air storage device 2. When the real-time air pressure is greater than or equal to a second pressure threshold (80-100 kPa), the first switching valve 5 closes, and the air source 1 stops inflating the air storage device 2. Optionally, the turning process is often short in duration and requires rapid adjustment of the first pneumatic bladder 9. Inflation provides timely support to the tilted side of the body, but the air pump's output speed is relatively slow, so an element to increase the inflation speed is needed. The air storage device 2 can increase the inflation speed of the first pneumatic bladder 9 when the car turns. When the real-time air pressure is less than or equal to the first pressure threshold, it indicates that the gas in the air storage device 2 is insufficient and needs to be replenished. When the real-time air pressure is greater than or equal to the second pressure threshold, it indicates that the gas in the air tank is sufficient to supply air to the air-using components. When the car turns, if the air pressure in the first pneumatic bladder 9 increases rapidly, only the air tank needs to supply air to the first pneumatic bladder 9. However, if the air pressure increases slowly, the air source 1 and the air tank can supply air to the first pneumatic bladder 9 simultaneously.

[0056] As shown in the figure, further, the air source 1 is connected to a third pneumatic mechanism 8 on the side away from the air storage device 2. The third pneumatic mechanism 8 has a first state and a second state. When the car turns, the third pneumatic mechanism 8 is in the first state, at which time the gas is only supplied to the first pneumatic mechanism 10 along the first air passage 6. When the car is traveling in the forward direction, the third pneumatic mechanism 8 is in the second state, at which time the gas can be supplied to the first pneumatic mechanism 10 along the first air passage 6, or to the second pneumatic mechanism 15 along the second air passage 13. The air outlet end of the air source 1 is provided with a second switching valve 3, which is used to control the air source 1 to supply gas to the gas-using component and / or the air storage device 2. Optionally, the third pneumatic mechanism 8 is a third switching valve, which is used when the car... When turning, the second pneumatic bladder 14 does not need to be inflated. At this time, the third switch valve is closed, allowing the air storage device 2 and / or the air source 1 to inflate the first pneumatic bladder 9 through the first air passage 6, quickly inflating the first pneumatic bladder 9 in the opposite direction of the turn, so that the first pneumatic bladder 9 expands in time. The second switch valve 3 can also be a one-way valve. When using the one-way valve, gas backflow into the air source 1 can be avoided. It should be noted that the one-way valve is controlled by air pressure. When the air pressure is high on the side of the one-way valve near the air source, the air passage between the air source and other air-using components is connected. When the air source is not working, and the air pressure is high on the side of the one-way valve away from the air source, the one-way valve prevents the gas from flowing back to the air source from the air-using component. At this time, it is considered that the one-way valve is closed, that is, the second switch valve 3 is closed.

[0057] As shown in the figure, a second air pressure sensor 11 is further provided on the first air passage 6. The second air pressure sensor 11 is used to detect the real-time air pressure inside the first pneumatic bladder 9. When the real-time air pressure is greater than or equal to a third pressure threshold, the first switch valve 5 and the second switch valve 3 are closed, and / or the inflation channel of the first pneumatic mechanism 10 is closed. Optionally, the third pressure threshold represents the pressure required for the first pneumatic bladder 9 to effectively support the tilted side of the occupant's body in the seat during this turning condition. This pressure is related to the turning speed and angle as well as the occupant's body shape. When the detected real-time air pressure is greater than or equal to the third pressure threshold, it indicates that the gas inside the first pneumatic bladder 9 can provide sufficient support. At this time, the air source 1 and the air storage device 2 stop supplying air to it, and / or the inflation channel of the first pneumatic mechanism 10 is closed, or the venting channel of the first pneumatic mechanism 10 is opened to slightly release some gas to reduce the air pressure and effectively protect the first pneumatic bladder 9.

[0058] As shown in the figure, the second pneumatic mechanism 15 further includes:

[0059] A first air valve 30 has a first air port, a second air port and a third air port. The first air port is connected to the second pneumatic bladder 14 and the second air port is connected to the third pneumatic mechanism 8.

[0060] The second air valve 31 is connected in series with the first air valve 30. The second air valve 31 has a fourth air port and a fifth air port. The third air port is connected to the fourth air port, and the fifth air port is connected to the external ambient gas.

[0061] The second pneumatic bladder 14 has an inflated state, a pressure-holding state, and a retracted state. When the second pneumatic bladder 14 is in the inflated state, the first air port is connected to the second air port and disconnected from the third air port. When the second pneumatic bladder 14 is in the pressure-holding state, the first air port is connected to the third air port, and the fourth air port is disconnected from the fifth air port. When the second pneumatic bladder 14 is in the retracted state, the first air port is connected to the third air port, and the fourth air port is connected to the fifth air port. Optionally, the second pneumatic mechanism 15 includes two air valves connected in series to achieve the pressure-holding state. When an occupant sits in the car seat, the air supply component supplies air to the second pneumatic bladder 14 according to the occupant's body shape, causing it to gradually inflate. When it reaches a point where it can conform to the occupant's body shape and provide support, the second pneumatic bladder 14 switches to the pressure-holding state. When the occupant leaves the seat, the second pneumatic bladder 14 switches back to the retracted state.

[0062] As shown in the figure, the first pneumatic mechanism 10 is further configured as a two-position three-way valve corresponding to each of the first pneumatic bladders 9. Optionally, the first pneumatic mechanism 10 is provided with a first air chamber, which is provided with a sixth air port, a seventh air port, and an eighth air port connected thereto. The sixth air port is connected to the first pneumatic bladder 9, the seventh air port is connected to the air supply component, and the eighth air port is connected to the external environment. The inflation channel is such that the sixth air port is connected to the seventh air port and disconnected from the eighth air port. At this time, the gas in the air supply component enters the first pneumatic bladder 9. The deflation channel is such that the sixth air port is connected to the eighth air port and disconnected from the seventh air port. At this time, the gas in the first pneumatic bladder 9 is discharged to the external environment.

[0063] When the car turns, the inflation channel of the first pneumatic mechanism 10 on the opposite side of the turning direction opens, realizing the inflated state of the first pneumatic bladder 9 opposite to the turning direction. When the car turns back to straight, the deflation channel of the first pneumatic mechanism 10 on the opposite side of the turning direction opens, realizing the retracted state of the first pneumatic bladder 9 opposite to the turning direction.

[0064] The two-position three-way valve is made of a demagnetizing material. It contains a first valve body 26 and further includes a first elastic component 28 sleeved outside the valve body and a first coil 27 sleeved outside the first air chamber. The first elastic component 28 is located at the end of the valve body relatively away from the first port. When the first pneumatic bladder 9 is in the retracted state, the first elastic component 28 is in a stored state, providing a first force for the first valve body 26 to move towards the first port. When the first pneumatic bladder 9 is in the inflated state, the first coil 27 is energized, and the first valve body 26 generates a second force away from the first port under the influence of a magnetic field. This second force is greater than the first force. The first elastic component 28 is a spring, and the first and second forces are opposite in direction along a second direction. The direction is the same as the extension direction of the first valve body 26. When the first pneumatic bladder 9 is in the inflated state, the air source 1 needs to supply air to the first pneumatic bladder 9. At this time, the first valve body 26 generates a second force to the right under the excitation action of the first coil 27. The second force is greater than the first force, causing the first valve body 26 to move away from the first port along the second direction. At this time, the eighth air port is blocked by the first valve body 26, and the sixth air port is connected to the seventh air port, so that the air supply component can inflate the first pneumatic bladder 9. The first valve body 26 is provided with silicone caps 29 at both ends along the second direction. The second direction is perpendicular to the first direction. The silicone caps 29 are used to seal and prevent gas from overflowing, and also reduce the collision noise generated when the first valve body 26 moves left and right along the second direction.

[0065] As shown in the figure, the air-using component further includes a third pneumatic bladder 16 and / or a fourth pneumatic bladder 18. The third pneumatic bladder 16 is used for massage, and the fourth pneumatic bladder 18 is used for lumbar support. Gas is inflated into the third pneumatic bladder 16 and the fourth pneumatic bladder 18 via the second air passage 13. Optionally, the second air passage 13 can be connected to a pneumatic bladder with massage or lumbar support functions, but is not limited to this. The massage function and the lumbar support function more effectively improve the driving experience. The third pneumatic bladder 16 is controlled by a fourth pneumatic mechanism 17, and the fourth pneumatic bladder 18 is controlled by a fifth pneumatic mechanism 19. At this time, the fourth pneumatic mechanism 17 works on the same principle as the first pneumatic mechanism 10, realizing the switching of inflation and deflation functions. The fifth pneumatic mechanism 19 works on the same principle as the second pneumatic mechanism 15, realizing the switching of inflation, deflation, and pressure holding functions. Figure 1 The diagram shows the valve body symbols that can be implemented by the pneumatic mechanisms described above.

[0066] like Figure 3 ,4 As shown in Figures 5 and 6, the pneumatic control system further includes at least one first pneumatic mechanism 10 and / or at least one second pneumatic mechanism 15, a third pneumatic mechanism 8, a first air pressure sensor 4, a second air pressure sensor 11, and at least one third air pressure sensor 12. Each of the third air pressure sensors 12 is used to detect the pressure inside the third pneumatic bladder 16 and the fourth pneumatic bladder 18. It also includes an electronic control unit 25 and a housing assembly. All the above components are integrated into the housing assembly to form an integrated control valve assembly. Optionally, the electronic control unit is abbreviated as ECU. This integrated control valve assembly can be installed inside the vehicle seat to realize seat side wing movement, support, massage, and lumbar support. The multi-functional integrated effect is achieved by setting various electrical components and a rigid circuit board (PCB) with programs that can be set as needed; the gas storage device 2 supplies gas to the gas passage from the gas storage device inlet 22, the gas source 1 supplies gas to the gas passage from the gas source inlet 23, and the gas passage plug 24 seals the gas passage. The first gas passage 6, the second gas passage, and the third gas passage 7 can be realized by air pipes, or by gas passages formed in the housing, or by the simultaneous existence of air pipes and gas passages as carriers; it should also be noted that the second switching valve 3, the first switching valve 5, and the third pneumatic mechanism 8 can be realized by two-position two-way valve bodies, and the driving force can be electromagnetic or shape memory alloy.

[0067] Example 2

[0068] Based on Embodiment 1, the car seat with movable side wings further includes: a plurality of pneumatic control systems for movable side wings as described in any one of the above embodiments are installed on the car seat; the seat cushion and / or backrest are provided with side wings; and the first pneumatic bladder 9 is disposed within the side wings of the seat cushion and / or backrest; the car seat also includes a seat frame, seat foam, and seat cover; the first pneumatic bladder 9 is disposed between the seat frame and the seat foam or between the seat foam and the seat cover. Inside a vehicle seat, airbags are typically provided on both sides of the seat cushion and backrest. However, during cornering, the upper body of the occupant tilts significantly, while the hips tilt less. Therefore, the movable side wings within the seat back need to be more effectively implemented. When the first pneumatic bladder 9 is disposed between the seat foam and the seat cover, it is closer to the occupant's body, resulting in a more pronounced inflation effect.

[0069] Example 3

[0070] Based on Example 1, a side wing-guided aerodynamic control method includes the following steps:

[0071] S100. Responding to the real-time gas pressure of the gas storage device 2;

[0072] S101. When the real-time gas pressure is less than or equal to the first pressure threshold, the first switch valve 5 and the second switch valve 3 are opened, and the gas source 1 charges the gas storage device 2. When the real-time gas pressure is greater than or equal to the second pressure threshold, the first switch valve 5 and the second switch valve 3 are closed.

[0073] Alternatively, it may be unnecessary to monitor the real-time gas pressure of the gas storage device 2, i.e., steps S100 and S101 are not required. Instead, the gas source 1 can be used to charge the gas storage device 2 directly by timed control. Specifically, the gas source 1 charges the gas storage device 2 at a first preset time interval, and the charging time is the first charging time. After the first charging time is reached, the first switch valve 5 is closed.

[0074] S102. In response to a vehicle turning signal, the third pneumatic mechanism 8 is shut down; optionally, the turning signal may include the turning radius and the vehicle speed, and the degree of inflation of the first pneumatic bladder 9 is determined by combining the turning radius and the vehicle speed with the body characteristics of the occupant. The degree of inflation corresponds to a certain air pressure value, which is achieved by outputting a certain amount of gas through the air storage device 2 and the air source 1.

[0075] S103. Open the first switch valve 5 and the inflation channel of the first pneumatic mechanism 10, and the air storage device 2 inflates the first pneumatic bladder 9 on the side opposite to the turning direction of the car, so that the first pneumatic bladder 9 inflates.

[0076] S104. And / or open the second switch valve 3, the air source 1 inflates the first pneumatic bladder 9 on the side opposite to the turning direction of the vehicle, and accelerates the inflation of the first pneumatic bladder 9; Optionally, depending on the vehicle's driving speed and turning radius, when the air storage device 2 inflates the first pneumatic bladder 9 fast enough, the air source 1 does not need to supply air, and the second switch valve 3 is closed at this time. However, when the inflation speed is insufficient, the second switch valve 3 needs to be opened, and the air source 1 and the air storage device 2 supply air simultaneously.

[0077] S105. In response to the vehicle stop turning signal, the first switch valve 5 is closed, the venting passage of the first pneumatic mechanism 10 is opened, and the first pneumatic bladder 9 is retracted.

[0078] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A pneumatic control system with movable side wings, disposed within a car seat, the car seat having two side wings on the left and right sides of the seat back, characterized in that, include: The pneumatic assembly includes at least one first pneumatic bladder (9) and at least one second pneumatic bladder (14) arranged along a first direction within each of the side wings; the first pneumatic bladder (9) is used to realize the side wing following function; the second pneumatic bladder (14) is used for passive side wing support; the first pneumatic bladder (9) has an inflated state and a retracted state. When the car turns, the first pneumatic bladder (9) on the opposite side of the turning direction is in the inflated state, and when the car turns back to the straight position, the first pneumatic bladder (9) on the opposite side of the turning direction switches to the retracted state; the second pneumatic bladder (14) plays a supporting role; At least one first pneumatic mechanism (10) is connected to each first pneumatic bladder (9) for switching the state of each first pneumatic bladder (9) when the car turns. At least one second pneumatic mechanism (15) is connected to each second pneumatic bladder (14) for controlling the inflation and deflation of each second pneumatic bladder (14); The air supply assembly includes an air source (1), which supplies air to the first pneumatic mechanism (10) via a first air passage (6) and / or to the second pneumatic mechanism (15) via a second air passage (13); the air supply assembly also includes an air storage device (2) and a first switching valve (5), one end of the first switching valve (5) is connected to the air storage device (2), and the other end is connected to the air source (1) and each of the first pneumatic mechanisms (10); the first switching valve (5) is used to control the air passage between the air storage device (2) and the air source (1), and between the air storage device (2) and the first pneumatic mechanism (10). When the car turns, the first switching valve (5) opens, the air storage device (2) releases air, and the inflation channel of the first pneumatic mechanism (10) opens, so that it can supply air to the first pneumatic bladder (9) at the same time as the air source (1).

2. The wing-guided aerodynamic control system according to claim 1, characterized in that: The gas storage device (2) is provided with a first pressure sensor (4) on the side away from the first switch valve (5). The first pressure sensor (4) is used to detect the real-time gas pressure in the gas storage device (2). When the real-time gas pressure is less than or equal to the first pressure threshold, the first switch valve (5) is opened to control the gas path between the gas source (1) and the gas storage device (2) to be connected. The gas source (1) fills the gas storage device (2) with gas. When the real-time gas pressure is greater than or equal to the second pressure threshold, the first switch valve (5) is closed and the gas source (1) stops filling the gas storage device (2) with gas.

3. The wing-guided aerodynamic control system according to claim 1, characterized in that: The gas source (1) is provided with a second switch valve (3) at its outlet end. The second switch valve (3) is used to control the gas source (1) to supply gas to the gas-using component and / or the gas storage device (2).

4. The wing-guided aerodynamic control system according to claim 3, characterized in that: The first air passage (6) is provided with a second air pressure sensor (11). The second air pressure sensor (11) is used to detect the real-time air pressure inside the first pneumatic bladder (9). When the real-time air pressure is greater than or equal to the third pressure threshold, the first switch valve (5) and the second switch valve (3) are closed, and / or the inflation channel of the first pneumatic mechanism (10) is closed.

5. The wing-guided aerodynamic control system according to claim 1, characterized in that: The second pneumatic mechanism (15) further includes: The first air valve has a first air port, a second air port and a third air port. The first air port is connected to the second pneumatic bladder (14) and the second air port is connected to the third pneumatic mechanism (8). The second air valve is connected in series with the first air valve. The second air valve has a fourth air port and a fifth air port. The third air port is connected to the fourth air port, and the fifth air port is connected to the external ambient gas. The second pneumatic bladder (14) has an inflated state, a pressure-holding state, and a retracted state; when the second pneumatic bladder (14) is in the inflated state, the first air port is connected to the second air port and disconnected from the third air port; when the second pneumatic bladder (14) is in the pressure-holding state, the first air port is connected to the third air port and the fourth air port is disconnected from the fifth air port; when the second pneumatic bladder (14) is in the retracted state, the first air port is connected to the third air port and the fourth air port is connected to the fifth air port.

6. The wing-guided aerodynamic control system according to claim 1, characterized in that: The first pneumatic mechanism (10) is a two-position three-way valve corresponding to each of the first pneumatic bladders (9).

7. The wing-guided aerodynamic control system according to claim 1, characterized in that: The gas-operated assembly further includes a third pneumatic bladder (16) and / or a fourth pneumatic bladder (18), the third pneumatic bladder (16) being used for massage and the fourth pneumatic bladder (18) being used for lumbar support, and gas being inflated into the third pneumatic bladder (16) and the fourth pneumatic bladder (18) via the second air passage (13).

8. The wing-guided aerodynamic control system according to claim 7, characterized in that: The pneumatic control system includes at least one first pneumatic mechanism (10) and / or at least one second pneumatic mechanism (15), a third pneumatic mechanism (8), a first pressure sensor (4), a second pressure sensor (11), and at least one third pressure sensor (12). Each of the third pressure sensors (12) is used to detect the pressure inside the third pneumatic bladder (16) and the fourth pneumatic bladder (18). It also includes an electronic control unit and a housing assembly. All the above components are integrated into a housing assembly to form a control valve assembly.

9. A car seat with movable side wings, characterized in that: The car seat is equipped with a plurality of side wing movable seat pneumatic control systems as described in any one of claims 1-8, the seat cushion and / or backrest are provided with side wings, and the first pneumatic bladder (9) is disposed in the side wing of the seat cushion and / or backrest; the car seat also includes a seat frame, a seat foam, and a seat cover, and the first pneumatic bladder (9) is disposed between the seat frame and the seat foam or between the seat foam and the seat cover.

10. A side-wing servo aerodynamic control method, characterized in that, The side-wing-responsive seat pneumatic control system, as described in any one of claims 1-8, comprises the following steps: In response to the real-time gas pressure of the gas storage device (2); When the real-time air pressure is less than or equal to the first pressure threshold, the first switch valve (5) and the second switch valve (3) are opened, and the air source (1) fills the air storage device (2). When the real-time air pressure is greater than or equal to the second pressure threshold, the first switch valve (5) and the second switch valve (3) are closed. In response to a car turning signal, the third pneumatic mechanism (8) is shut off. Open the first switch valve (5) and the inflation channel of the first pneumatic mechanism (10), and the air storage device (2) inflates the first pneumatic bladder (9) on the side opposite to the turning direction of the car, causing the first pneumatic bladder (9) to inflate. Open the second switch valve (3), and the air source (1) inflates the first pneumatic bladder (9) on the side opposite to the turning direction of the car, accelerating the inflation of the first pneumatic bladder (9); In response to the car stop turning signal, the first switch valve (5) is closed, the first pneumatic mechanism (10) venting passage is opened, and the first pneumatic bladder (9) retracts.

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