Seat blowing system, seat blowing system control method, seat and vehicle

Abstract

The invention discloses a seat blowing system, a seat blowing system control method, a seat and a vehicle. The inflation driving assembly is connected with an inlet of the multi-way valve; the air channel assembly comprises a plurality of air inlets and a plurality of air outlets, the multiple air inlets are connected with the multiple outlets of the multi-way valve respectively, and the multi-way valve changes the air blowing modes of the multiple air outlets by adjusting the air outlet amount of the multiple outlets. Air flowing out of the inflation driving assembly is introduced into the multi-way valve through an inlet of the multi-way valve, then the air outlet amount of the multiple air outlets of the air channel assembly is changed by adjusting the air outlet amount of the multiple outlets of the multi-way valve to be the same or different, and multi-air-channel air blowing and multi-air-blowing-mode regulation and control are achieved.

Description

Technical Field

[0001] This invention relates to the field of vehicle seat technology, and in particular to a seat blowing system, a seat blowing system control method, a seat, and a vehicle. Background Technology

[0002] With the continuous development of vehicle technology, people have increasingly higher requirements for vehicle functions, among which seat neck ventilation is an important function to improve the comfort of drivers and passengers. The system that realizes this function is the car seat neck air blowing system. The existing car seat neck air blowing systems are mainly single air ducts with a single air blowing mode, which cannot provide drivers and passengers with different directions and different forms of air blowing experience. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a seat air blowing system that can deliver air through at least multiple air ducts, thus solving the problem of a single air blowing mode.

[0004] In a first aspect, embodiments of this application provide a seat blowing system, including:

[0005] Multi-way valve;

[0006] An inflation drive assembly, the inflation drive assembly being connected to the inlet of the multi-way valve; and,

[0007] An air path assembly includes multiple air inlets and multiple air outlets. The multiple air inlets are respectively connected to multiple outlets of the multi-way valve. The multi-way valve changes the blowing mode of the multiple air outlets by adjusting the air volume of the multiple outlets.

[0008] Optionally, the seat blowing system further includes a heat exchange device for exchanging heat with the gas within the seat blowing system.

[0009] Optionally, the inflation drive assembly is connected to the inlet of the multi-way valve via a first air pipe, and the seat blowing system further includes a heat exchange device, which is disposed in contact with the first air pipe for heat exchange with the first air pipe.

[0010] Optionally, the heat exchange device includes a refrigeration unit and a heating unit, the refrigeration unit and the heating unit are respectively disposed on both sides of the first gas pipe, and at least one of the refrigeration unit and the heating unit is directly in contact with the first gas pipe.

[0011] Optionally, the first air pipe is at least partially bent to form a first air pipe bend; the first air pipe bend is in contact with the heat exchange device.

[0012] Optionally, the heat exchange device includes a refrigeration unit and a heating unit, which are respectively disposed on both sides of the bend in the first gas pipe and are respectively in direct contact with the first gas pipe.

[0013] Optionally, the air path assembly includes: a first branch and a second branch; the multiple outlets of the multi-way valve include a first outlet and a second outlet; the air inlet of the first branch is connected to the first outlet, and the air inlet of the second branch is connected to the second outlet.

[0014] The multi-way valve changes the airflow of the first branch outlet and the second branch outlet by adjusting the airflow of the first outlet and the second outlet, thereby changing the blowing mode.

[0015] Optionally, at least one of the first branch and the second branch is a spiral structure.

[0016] Optionally, the seat blowing system further includes a noise reduction device disposed between the outlet of the inflation drive assembly and the plurality of air outlets of the air passage assembly.

[0017] Optionally, the seat blowing system further includes a protective device, which is disposed at multiple air outlets of the air circuit assembly. When air is emitted from the multiple air outlets, the protective device is opened under the action of the airflow.

[0018] Optionally, the seat blowing system further includes a temperature sensor disposed on the inner wall of at least one air outlet of the air passage assembly.

[0019] Secondly, embodiments of this application provide a method for controlling a seat air blowing system, applied to the aforementioned seat air blowing system, the method comprising:

[0020] Select the blower mode;

[0021] According to the blowing mode, the air volume of multiple outlets of the multi-way valve is controlled.

[0022] Optionally, the method further includes:

[0023] According to the blowing mode, the heat exchange device is controlled to exchange heat with the gas in the seat blowing system.

[0024] Optionally, the blowing mode includes a normal mode and an anti-motion sickness mode. When the blowing mode is the normal mode, the method includes:

[0025] Set the blowing temperature and blowing air volume according to the adjustable range of blowing temperature and blowing air volume;

[0026] In response to the set blowing temperature and blowing volume, the rotation speed of the air-inflating drive assembly, the opening degree of the multi-way valve, and the output power of the heat exchange device are adjusted to output the set blowing temperature and blowing volume.

[0027] Optionally, the blowing mode includes a normal mode and an anti-motion sickness mode. When the blowing mode is the anti-motion sickness mode, the method includes:

[0028] Set the blower temperature according to the adjustable range of blower temperature;

[0029] In response to the set blowing temperature, the output power of the heat exchange device is adjusted to output the set blowing temperature; in response to the vehicle's motion status information, the rotation speed of the inflation drive component and the opening degree of the multi-way valve are adjusted to output the blowing volume corresponding to the vehicle's motion status.

[0030] Optionally, the step of adjusting the rotational speed of the inflation drive assembly and the opening of the multi-way valve in response to the vehicle's motion state information, and outputting the air volume corresponding to the vehicle's motion state, includes:

[0031] When the vehicle is traveling in a straight line, the rotation speed of the air-inflating drive assembly and the opening of the first and second outlets of the multi-way valve are adjusted so that the air volume of the first and second branches of the air circuit assembly is the same, and the air volume is proportional to the vehicle speed.

[0032] Optionally, the step of adjusting the rotational speed of the inflation drive assembly and the opening of the multi-way valve in response to the vehicle's motion state information, and outputting the air volume corresponding to the vehicle's motion state, includes:

[0033] When the vehicle turns, the rotation speed of the air-driving assembly and the opening of the first and second outlets of the multi-way valve are adjusted so that the air volume of the first and second branches of the air circuit assembly is different, and the difference in air volume between the first and second branches is proportional to the turning radius.

[0034] Optionally, the first branch road is located on the left side of the vehicle, and the second branch road is located on the right side of the vehicle, the method comprising:

[0035] When the vehicle is making a left turn, the air volume of the second branch is greater than that of the first branch.

[0036] When the vehicle turns right, the air volume of the first branch is greater than that of the second branch.

[0037] Thirdly, embodiments of this application provide a seat, including the aforementioned seat blowing system.

[0038] Fourthly, embodiments of this application provide a vehicle including the aforementioned seat air blowing system or the aforementioned seat.

[0039] Fifthly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the aforementioned seat blowing system control method.

[0040] Sixthly, embodiments of this application provide a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the seat blowing system control method as described above.

[0041] In a seventh aspect, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the aforementioned seat blowing system control method.

[0042] In summary, this application discloses a seat blowing system, comprising: a multi-way valve; an inflation drive assembly connected to the inlet of the multi-way valve; and an air path assembly, comprising multiple air inlets and multiple air outlets, wherein the multiple air inlets are respectively connected to multiple outlets of the multi-way valve, and the multi-way valve changes the blowing mode of the multiple air outlets by adjusting the air volume of the multiple outlets.

[0043] The gas flowing out from the inflation drive component is introduced into the multi-way valve through the inlet of the multi-way valve. Then, by adjusting the air volume of the multiple outlets of the multi-way valve to be the same or different, the air volume of the multiple outlets of the air circuit component is changed, thereby realizing multi-channel blowing and multi-blowing mode control.

[0044] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0046] Figure 1 This is a schematic diagram of a seat blowing system according to an embodiment of this application. Figure 1 ;

[0047] Figure 2 This is a schematic diagram of a seat blowing system according to an embodiment of this application. Figure 2 ;

[0048] Figure 3 Based on this application Figure 2 A partial schematic diagram of region A in the middle;

[0049] Figure 4 This is a partial structural schematic diagram of a seat blowing system according to an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the control architecture of a seat blowing system according to an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of a seat blowing system control method according to an embodiment of this application;

[0052] Figure 7 This is a schematic diagram of temperature control for a seat blowing system according to an embodiment of this application;

[0053] Figure 8 This is a structural schematic diagram of a vehicle according to an embodiment of this application.

[0054] Figure label:

[0055] 10. Seat air conditioning system; 100. Vehicle;

[0056] 1. Inflation drive assembly; 2. Refrigeration unit; 8. Heating unit; 3. Multi-way valve; 4. Control unit; 5. Gas circuit assembly; 51. First branch; 52. Second branch; 7. Silencing device; 9. Protective device; 11. First air pipe; 111. First air pipe bend. Detailed Implementation

[0057] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0058] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] The embodiments of this application are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-7 This application describes a seat air blowing system 10, a seat air blowing system control method, and a vehicle according to embodiments thereof.

[0061] This application provides a seat blowing system 10, such as Figure 1 As shown, the system includes a multi-way valve 3, an inflation drive assembly 1, and an air path assembly 5. The inflation drive assembly 1 is connected to the inlet of the multi-way valve 3. The air path assembly 5 includes multiple air inlets and multiple air outlets. The multiple air inlets are respectively connected to the multiple outlets of the multi-way valve 3. The multi-way valve 3 changes the blowing mode of the multiple air outlets by adjusting the air volume of the multiple outlets.

[0062] In some embodiments, the multi-port independent control is achieved through the multi-way valve 3, which can adjust the blowing intensity of different areas according to demand, thereby improving the flexibility and adaptability of the system.

[0063] In some embodiments, the inflation drive component 1 is an air pump that can receive a PWM signal from the control unit 4 to adjust the motor speed of the inflation drive component 1, thereby adjusting the inflation pressure and flow rate. The higher the duty cycle of the PWM signal received by the inflation drive component 1, the faster the rotation speed of the inflation drive component 1.

[0064] In some embodiments, the inflation drive assembly 1 can be the same inflation drive assembly 1 used in the vehicle 100 for seat massage or seat lumbar support adjustment, eliminating the need for a separate inflation drive assembly 1. The type of inflation drive assembly 1 may include, but is not limited to, a piston-type inflation drive assembly, a diaphragm-type inflation drive assembly, or a vane-type inflation drive assembly.

[0065] In some embodiments, the multi-way valve 3 is used to control the opening and closing of the gas path assembly 5 and to regulate the flow rate. It has a one-to-many function, and each path can be controlled independently. The multi-way valve 3 receives a PWM signal from the control unit 4 to adjust the valve opening, thereby achieving flow rate regulation for each flow path. Specifically, the higher the duty cycle of the PWM signal received by the multi-way valve 3, the larger the valve opening, and the greater the gas flow rate of the controlled flow path.

[0066] In some embodiments, the multi-way valve 3 can be integrated into the solenoid valve control module of the pneumatic system of the vehicle 100. The solenoid valve control module of the pneumatic system refers to the control module that controls functions such as seat massage, lumbar support, and leg support adjustment. If the multi-way valve already exists in the control unit and has extra channels, these channels can be reused, eliminating the need for an additional multi-way valve 3. If the multi-way valve already exists in the control module and does not have extra channels, a multi-way valve 3 that meets the design requirements can be added. Even if an additional multi-way valve 3 is added, in some embodiments it can be integrated with the control module. Alternatively, it can be integrated with both the control unit and the control module to reduce the space occupied in the vehicle 100.

[0067] In some embodiments, the control unit 4 and the multi-way valve 3 are integrated into a single housing, ultimately forming an integrated unit. This arrangement can improve the integration of components and increase the overall layout space of the vehicle 100.

[0068] In some embodiments, the seat air conditioning system further includes a heat exchanger for exchanging heat with the gas within the seat air conditioning system to cool or heat the gas. The heat exchanger can be located anywhere in the airflow path of the seat air conditioning system, as long as heat exchange occurs with the gas before it exits the multiple outlets of the airflow path assembly.

[0069] In some embodiments, the inlet of the inflation drive assembly 1 and the multi-way valve 3 is connected via a first air pipe 11. The system also includes a heat exchange device that is in contact with the first air pipe 11 for heat exchange. This solution achieves airflow temperature regulation through the heat exchange device, providing a suitable blowing temperature according to the ambient temperature or user needs, thus improving comfort.

[0070] In some embodiments, the heat exchange device includes a cooling unit 2 and a heating unit 8, which are respectively disposed on both sides of the first air pipe 11, and at least one of the cooling unit 2 and the heating unit 8 is in direct contact with the first air pipe 11. This solution achieves precise control of airflow temperature through a dual-unit heat exchange structure, avoiding the limitations of a single heat exchange method.

[0071] In some embodiments, the cooling unit 2 and the heating unit 8 are a thermoelectric cooler and a heating element, respectively. Both operate based on the Seebeck effect and the Peltier effect, respectively. The thermoelectric cooler generates voltage through a temperature difference, while the heating element transfers heat through an electric current. In the seat air blowing system 10, the cold electrode of the thermoelectric cooler is adjacent to the first air pipe 11, and the hot electrode of the heating element is also adjacent to the first air pipe 11. When cooling is needed, the thermoelectric cooler is energized. When current passes through the thermoelectric cooler, the cold electrode absorbs heat from the first air pipe 11 and conducts the absorbed heat into the air. At this time, the gas inside the first air pipe 11 is cooled. When heating is needed, the heating element is energized. When current passes through the heating element, the hot electrode releases heat and conducts the heat to the first air pipe 11, thus heating the gas inside the first air pipe 11.

[0072] In some embodiments, the first air pipe 11 is at least partially bent to form a bent portion; the bent portion of the first air pipe 11 is in contact with the heat exchange device. This design increases the contact area between the air pipe and the heat exchange device through the bending structure, thereby improving the heat exchange efficiency.

[0073] In some embodiments, such as Figure 4 As shown, the first air pipe 11 is used to deliver the airflow generated by the air pump to the multi-way valve 3. The bend in the first air pipe 11 can be S-shaped, the purpose of which is to maximize the contact area with the end face of the heat exchange device, thereby improving the heat exchange efficiency. Therefore, apart from the S-shape, other bending shapes of the first air pipe 11 that can increase the contact area with the heat exchange device are all within the scope of protection of this application.

[0074] In some embodiments, the heat exchange device includes a refrigeration unit 2 and a heating unit 8, which are respectively disposed on both sides of the bend in the first air pipe 11 and are in direct contact with the first air pipe 11. This scheme, through a split heat exchange structure, that is, the refrigeration unit 2 and the heating unit 8 respectively contact the two end faces of the bend in the first air pipe 11, increases the contact area between the refrigeration unit 2 and the heating unit 8 and the bend in the first air pipe 11, improves the refrigeration and heating efficiency, and further optimizes the heat exchange performance.

[0075] In some embodiments, the cooling unit 2 is a thermoelectric cooler, and the heating unit 8 is a silicone rubber heating element. The thermoelectric cooler is bonded to one end face of the bend in the first air pipe 11 using thermally conductive adhesive, and the silicone rubber heating element is bonded to the other end face of the bend in the first air pipe 11 using thermally conductive adhesive. To further increase the contact heat exchange area, a flat tube can be used in the area where the bend in the first air pipe 11 contacts the thermoelectric cooler and the silicone rubber heating element, with the flat surface of the flat tube contacting the thermoelectric cooler and the silicone rubber heating element respectively.

[0076] This application embodiment also provides a seat blowing system 10, such as Figure 1 As shown, the air path assembly includes a first branch 51 and a second branch 52; the multi-port valve 3 has multiple outlets including a first outlet and a second outlet; the air inlet of the first branch 51 is connected to the first outlet, and the air inlet of the second branch 52 is connected to the second outlet; the multi-port valve 3 changes the air volume of the air outlet of the first branch 51 and the air outlet of the second branch 52 by adjusting the air volume of the first outlet and the second outlet, thereby changing the blowing mode.

[0077] In some embodiments, valves are respectively provided on the first and second outlets of the multi-way valve 3, and the valves can adjust the gas flow rate (air volume) of the first and second outlets. This changes the air volume at the air outlets of the first branch 51 and the second branch 52, thereby realizing the adjustment of multiple blowing modes.

[0078] In some embodiments, at least one of the first branch 51 and the second branch 52 is a soft spiral structure. The use of soft materials (such as TPU) and a spiral design increases the elasticity of the trachea and enhances the flexibility of its arrangement.

[0079] In some embodiments, the system further includes a silencing device 7 disposed between the outlet of the inflation drive assembly 1 and multiple air outlets of the air path assembly 5. This design improves the quietness of system operation by suppressing airflow and noise from the inflation drive assembly 1 through the silencing device 7.

[0080] In some embodiments, the noise sources of the seat blowing system 10 are mainly the driving noise of the inflation drive assembly 1 and the noise from the movement of gas in the first air pipe 11 and the air path assembly 5. The driving noise of the inflation drive assembly 1 accounts for a relatively large proportion. Therefore, the closer the silencing device 7 is to the inflation drive assembly 1, the better its noise reduction effect. In some embodiments, the silencing device 7 is a multi-layer porous sound-absorbing structure using gradient density materials to achieve broadband noise attenuation and has a good noise reduction effect.

[0081] In some embodiments, such as Figure 2 or Figure 3 As shown, the system also includes protective devices installed at multiple air outlets of the air path assembly 5. When air is discharged from multiple outlets, the protective devices open under the action of the airflow. This solution, through an airflow-triggered protective structure, ensures that the air outlets open automatically when needed, avoiding misoperation or accidental blockage.

[0082] In some embodiments, the protective device and the air outlet of the air passage assembly 5 are connected together by a screw thread. In some embodiments, the outer peripheral wall of the protective device is provided with an external thread, and the inner wall of the air outlet of the air passage assembly 5 is provided with an internal thread. The internal and external threads are fitted together to realize the assembly of the protective device and the air passage assembly 5. The protective device can be a duckbill type one-way valve structure, which is normally closed. When gas passes through the air outlet of the air passage assembly 5, the valve opening is automatically opened by the air pressure difference. When the airflow stops, the valve automatically rebounds and closes, achieving zero-power dust prevention.

[0083] In some embodiments, the system further includes a temperature sensor disposed on the inner wall of at least one outlet of the gas path assembly 5. This solution provides data support for closed-loop temperature control by monitoring the outlet temperature in real time, ensuring precise adjustment of the airflow temperature.

[0084] In some embodiments, the temperature sensor employs a flexible thin-film composite sensing structure based on the principle of triboelectric nanogenerators, consisting of a micron-scale fluorinated ethylene propylene triboelectric layer integrated on a flexible polyimide substrate and a nano-silver linear sensing circuit. This sensor converts the mechanical energy generated during the periodic contact between airflow and the sensor surface into electrical energy through a contact-separation triboelectric-electrostatic coupling mechanism, achieving self-powered temperature monitoring and eliminating the interference of external power supply wiring harnesses on the spatial layout of traditional sensors. The temperature sensor is directly attached to the inner wall of the air outlet of the air path assembly 5, enabling real-time monitoring of the outlet air temperature. The temperature sensor also integrates a miniaturized wireless signal transceiver module, which transmits temperature information wirelessly to the control unit 4. The control unit 4 then adjusts the PWM signal output to the heat dissipation device based on the real-time monitored temperature information and the user-set temperature information, achieving closed-loop control. The wireless communication protocol between the temperature sensor and the control unit 4 may include, but is not limited to, WIFI, Bluetooth, BLE, and Zigbee.

[0085] In some embodiments, such as Figure 5As shown, the control unit 4 integrates a CAN transceiver module, which can read the vehicle's lateral acceleration, speed, steering wheel angle, and other motion states. It then uses algorithms to control the air pump speed and the opening of the multi-way valve 3, adjusting the neck-blowing mode and providing feedback on the vehicle's motion state. It also integrates a wireless module, which can read the outlet air temperature data from the temperature sensor and control the heat exchange device to operate at the appropriate power in real time according to the set temperature, achieving closed-loop temperature control. The gyroscope collects the vehicle's lateral acceleration information, the steering wheel angle sensor collects the steering wheel angle information, and the vehicle speed sensor collects the speed information. These three sensors are already present on the vehicle 100 and do not require additional additions. The control unit 4 communicates with the central control screen, gyroscope, steering wheel angle sensor, and vehicle speed sensor via a CAN network. The control unit 4 sends PWM signals to the multi-way valve 3, the inflation drive assembly 1, the cooling unit 2, and the heating unit 8, thereby controlling the operation of at least one of these components.

[0086] This application embodiment also provides a method for controlling a seat air blowing system. The method includes selecting an air blowing mode; controlling the airflow of multiple outlets of a multi-way valve 3 according to the air blowing mode, and changing the airflow of multiple outlets of the air passage assembly 5 to adjust the air blowing mode. The method also controls the heat exchange device to exchange heat with the gas within the seat air blowing system to adjust the air blowing temperature. Specifically, the user selects the air blowing mode on the central control screen of the vehicle 100 or on a personal mobile device, and the control unit 4 sends a corresponding control signal to the heat exchange device to adjust the air blowing temperature according to the selected air blowing mode. The method also sends corresponding control signals to the inflation drive assembly 1 and the multi-way valve 3 to adjust the airflow.

[0087] In some embodiments, the air blowing mode includes a normal mode and an anti-motion sickness mode. When the air blowing mode is in normal mode, the seat air blowing system control method includes: setting the air blowing temperature and air blowing volume according to the adjustable range of the air blowing temperature and air blowing volume; and adjusting the rotation speed of the inflation drive component 1, the opening degree of the multi-way valve 3, and the output power of the heat exchange device in response to the set air blowing temperature and air blowing volume, so as to output the set air blowing temperature and air blowing volume. This solution achieves precise adjustment of air blowing temperature and air blowing volume through multi-parameter coordinated control, meeting the usage needs in different scenarios.

[0088] In some embodiments, the user selects the normal blowing mode on the central control screen and sets the blowing temperature and airflow according to the adjustable range of blowing temperature and airflow. In some embodiments, the adjustable range of blowing temperature can be 16-35℃, with a minimum adjustment unit of 1℃. The adjustable range of airflow can be 0-100%, with a minimum adjustment unit of 1%. After setting, the neck ventilation function is turned on. At this time, the control unit 4 receives the set values ​​of temperature and airflow and sends PWM signals to adjust the rotation speed of the inflation drive component 1, the opening degree of the multi-way valve 3, and the output power of the cooling unit 2 or the heating unit 8 to achieve the specified blowing mode. The duty cycle of the PWM signal sent to the inflation drive component 1 and the multi-way valve 3 corresponds to the airflow setting value. The control mode of the heat dissipation component is as follows: when the set temperature is higher than the vehicle interior temperature, the heating unit 8 is controlled to work; when the set temperature is lower than the vehicle interior temperature, the cooling unit 2 is controlled to work.

[0089] In some embodiments, such as Figure 7 As shown, the control strategy for the blowing temperature is fuzzy PID control. The difference E between the set temperature value and the real-time temperature value monitored by the temperature sensor, as well as its rate of change dE / dt, are collected in real time. The difference E and the rate of change are processed by the fuzzy controller to dynamically adjust the traditional PID parameters (Kp, Ki, Kd). Finally, the PID controller calculates the output power required by the heat exchange device, and the control unit 4 outputs a PWM signal to realize the real-time control of the output power of the heat dissipation device. This forms a closed-loop feedback to adapt to the nonlinearity and uncertainty of the system, and achieves a balance between robustness, response speed and steady-state accuracy.

[0090] In some embodiments, the blowing mode includes a normal mode and an anti-motion sickness mode. When the blowing mode is the anti-motion sickness mode, the method includes setting the blowing temperature according to the adjustable range of the blowing temperature; adjusting the output power of the heat exchange device in response to the set blowing temperature to output the set blowing temperature; and adjusting the rotation speed of the inflation drive assembly 1 and the opening degree of the multi-way valve 3 in response to the motion state information of the vehicle 100 to output the blowing volume corresponding to the motion state of the vehicle 100.

[0091] In some embodiments, the user selects the anti-motion sickness mode on the central control screen or personal mobile device, and sets the air temperature value according to the adjustable range of the air temperature. After setting, the neck ventilation is turned on. The temperature control strategy is the same as in the normal mode, while the airflow control strategy is related to the vehicle's motion state. The control unit 4 reads the vehicle's lateral acceleration, speed, and steering wheel angle signals to determine the vehicle's motion state in real time. Based on the vehicle's motion state, the rotation speed of the inflation drive assembly 1 and the opening of the multi-way valve 3 are adjusted, outputting the airflow corresponding to the vehicle's motion state. This solution, by combining the vehicle's motion state information, achieves dynamic feedback control, effectively alleviating vestibular conflict in passengers and improving the anti-motion sickness effect.

[0092] When the vehicle's lateral acceleration is greater than 0.1g and the steering wheel angle is greater than 10°, it is determined that the vehicle is performing a steering / lane change operation. At this time, the control assembly 6 will output a PWM wave to control the opening of the solenoid valves on both sides according to the lateral acceleration and the steering wheel angle. If it is turning left, the air volume on the right side is greater than that on the left side. If it is turning right, the air volume on the left side is greater than that on the right side. The larger the steering angle, the greater the difference in air volume between the two sides. At this time, the speed of the air pump is still proportional to the vehicle speed.

[0093] In some embodiments, in response to the motion state information of the vehicle 100, the rotational speed of the inflation drive assembly 1 and the opening of the multi-way valve 3 are adjusted to output the air volume corresponding to the motion state of the vehicle 100. This includes: when the vehicle 100 is traveling in a straight line, adjusting the rotational speed of the inflation drive assembly 1 and the opening of the first and second outlets of the multi-way valve 3 to make the air volume of the first branch 51 and the second branch 52 of the air circuit assembly the same, and the air volume is directly proportional to the vehicle speed. This scheme, through vehicle speed-related control, controls the air volume of the first branch 51 and the second branch 52 to be the same when the vehicle 100 is traveling in a straight line, so that the air volume blown towards the driver and passengers is the same on both sides. At the same time, it ensures that the airflow intensity changes with the vehicle speed, that is, the higher the vehicle speed, the higher the airflow intensity. In summary, the airflow direction and airflow intensity correspond to the driving state of the vehicle 100, preventing the driver and passengers from experiencing motion sickness while driving the vehicle 100.

[0094] In some embodiments, when both the vehicle's lateral acceleration and steering wheel angle are less than preset thresholds, the vehicle is determined to be traveling in a straight line. At this time, air is discharged from both ducts simultaneously, and the rotational speed of the inflation drive assembly 1 and the opening degree of the multi-way valve 3 are both proportional to the vehicle speed, that is, the air volume is proportional to the vehicle speed. The higher the vehicle speed, the greater the air volume.

[0095] In some embodiments, in response to the motion state information of the vehicle 100, the rotation speed of the inflation drive assembly 1 and the opening degree of the multi-way valve 3 are adjusted to output the air volume corresponding to the motion state of the vehicle 100. This includes: when the vehicle 100 is turning, adjusting the rotation speed of the inflation drive assembly 1 and the opening degree of the first and second outlets of the multi-way valve 3, so that the air volume of the first branch 51 and the second branch 52 of the air circuit assembly are different, and the difference in air volume between the first branch 51 and the second branch 52 is directly proportional to the steering angle. The larger the steering angle, the larger the difference in air volume between the first branch 51 and the second branch 52. In summary, by making the air blowing direction and air blowing intensity correspond to the driving state of the vehicle 100, the motion sickness experienced by the driver and passengers during the driving of the vehicle 100 can be effectively alleviated. At the same time, this solution achieves dynamic adjustment of the air volume of the left and right air pipes through steering angle-related control, enhancing the directional feedback.

[0096] In some embodiments, the first branch 51 is located on the left side of the vehicle 100, and the second branch 52 is located on the right side of the vehicle 100. The method includes ensuring that when the vehicle 100 is turning left, the airflow volume of the second branch 52 is greater than that of the first branch 51; and that when the vehicle 100 is turning right, the airflow volume of the first branch 51 is greater than that of the second branch 52. This scheme, through differentiated control of the left and right air ducts, simulates a realistic sense of direction, further enhancing the anti-motion sickness effect.

[0097] In some embodiments, when both the vehicle's lateral acceleration and steering wheel angle exceed preset thresholds, the vehicle 100 is determined to be in a turning state. In some embodiments, when the vehicle's lateral acceleration is greater than 0.1g and the steering wheel angle is greater than 10°, the vehicle 100 is determined to be in a turning state. At this time, the control unit 4 outputs a PWM signal based on the magnitude of the lateral acceleration and steering wheel angle to control the opening of the first and second outlets of the multi-way valve 3. If the turn is left, the air volume from the right outlet is greater than that from the left outlet. If the turn is right, the air volume from the left outlet is greater than that from the right outlet. The greater the turning angle, the greater the difference in air volume between the two sides. Simultaneously, when the vehicle 100 is in a turning state, the rotational speed of the inflation drive assembly 1 remains proportional to the vehicle speed, meaning the air volume of the air circuit assembly 5 is proportional to the vehicle speed. This scheme achieves dynamic adjustment of the air volume from the left and right air pipes through steering angle and associated control, enhancing directional feedback.

[0098] In some embodiments, when the vehicle is turning, and the multi-way valve has two outlets (a first outlet and a second outlet), a formula is provided for calculating the duty cycle of the PWM wave controlling the opening of the first and second outlet valves. Q1 is the PWM wave duty cycle controlling the outlet valve on the opposite side of the steering direction, and Q2 is the PWM wave duty cycle controlling the outlet valve on the same side as the steering direction. The calculation functions for Q1, Q2, vehicle speed V (m / s), steering wheel angle δ (°), and lateral acceleration a (g) are shown in the following formula:

[0099] Q1 = K1 * V * (K2 * |a| + K3 * |δ|)

[0100] Q2=1-Q1, Q1>K4, Q2=1-Q1, Q1≤K4

[0101] Where K1, K2, K3, and K4 are constants;

[0102] In some embodiments, K1, K2, K3, and K4 are assigned specific values, namely K1 is 0.01, K2 is 1.5, K3 is 0.02, and K4 is 0.5; substituting these values ​​into the calculation formulas for Q1 and Q2, we obtain:

[0103] Q1=0.01*V*(1.5*|a|+0.02*|δ|)

[0104] Q2=1-Q1, Q1>0.5, Q2=Q1 2 Q1≤0.5

[0105] It should be emphasized that Q1 is in the range of 0 to 1. When the value of Q1 obtained by the Q1 calculation formula is greater than 1, then the value of Q1 is taken as 1.

[0106] In some embodiments, such as Figure 6 The diagram illustrates a method for controlling a seat air blowing system, including the complete steps of controlling the seat air blowing system 10. The specific method is as follows:

[0107] Passengers can select the air blowing mode, which includes two modes: normal mode and anti-motion sickness mode.

[0108] When the selected airflow mode is normal mode, passengers can manually or voice-set the specific values ​​for the airflow temperature and airflow volume according to the adjustable range. After setting, passengers can manually or voice-control the neck ventilation function (specifically, by clicking the selectable icon on the vehicle's central control screen or personal mobile device interface, with the text "Start Neck Ventilation" on the icon). After the neck ventilation function is activated, the control unit 4 receives the temperature and airflow settings and sends corresponding PWM signals to adjust the speed of the inflation drive component 1, the opening degree of the multi-way valve 3, and the output power of the cooling unit 2 or heating unit 8 to achieve the specified airflow mode. The control mode of the cooling component is as follows: when the set temperature is higher than the vehicle interior temperature, the heating unit 8 is controlled to operate; when the set temperature is lower than the vehicle interior temperature, the cooling unit 2 is controlled to operate.

[0109] When the selected airflow mode is anti-motion sickness mode, the temperature control strategy is the same as in normal mode. That is, after the neck ventilation function is activated, the control unit 4 sends a corresponding PWM signal to the cooling unit 2 or heating unit 8 based on the set temperature value, controlling the temperature by adjusting the output power of the cooling unit 2 or heating unit 8. Specifically, when the set temperature is higher than the interior temperature, the heating unit 8 is activated; when the set temperature is lower than the interior temperature, the cooling unit 2 is activated. In anti-motion sickness mode, the airflow control strategy is related to the vehicle 100's motion state and does not require further settings from the driver and passengers. The control unit 4 reads the vehicle's lateral acceleration, speed, and steering wheel angle signals to determine the vehicle 100's motion state in real time. Based on the vehicle 100's motion state, it adjusts the rotation speed of the inflation drive assembly 1 and the opening of the multi-way valve 3, outputting the airflow corresponding to the vehicle 100's motion state.

[0110] Specifically, when the vehicle 100 is traveling in a straight line, the opening degrees of the first and second outlets of the multi-way valve 3 are controlled to be the same, thereby making the air volume of the first branch 51 and the second branch 52 of the air circuit assembly 5 the same. When the vehicle 100 is turning right, the opening degree of the first outlet of the multi-way valve 3 is controlled to be greater than the opening degree of the second outlet, thereby making the air volume of the first branch 51 greater than the air volume of the second branch 52. When the vehicle 100 is turning left, the opening degree of the first outlet of the multi-way valve 3 is controlled to be less than the opening degree of the second outlet, thereby making the air volume of the second branch 52 greater than the air volume of the first branch 51. The adjustment of the rotation speed of the inflation drive assembly 1 is mainly related to the vehicle speed; that is, the higher the vehicle speed, the greater the rotation speed of the inflation drive assembly 1.

[0111] The aforementioned motion sickness prevention mode combines vehicle motion status information to achieve dynamic feedback control, effectively alleviating vestibular conflict among drivers and passengers and improving the motion sickness prevention effect.

[0112] In some embodiments, if more dimensions and directions of airflow are required, the number of branches in the airflow assembly can be further increased. For example, setting three branches, compared to setting two branches, increases the dimensions and directions of airflow to the driver and passengers, thus improving the user experience. In practical applications, the number of branches can be flexibly selected based on vehicle positioning and design requirements, and will not be elaborated further here.

[0113] In some embodiments, the air outlets of the air duct assembly can be located on the seat back, headrest, or side bolster. In practical applications, the placement can be flexibly selected based on vehicle positioning and design requirements, and will not be elaborated further here.

[0114] In some embodiments, the seat ventilation system proposed in this application can also be applied to other scenarios besides vehicles, such as seats in 4D cinemas, to improve the viewing experience for moviegoers. In addition to relieving motion sickness, the seat ventilation system proposed in this application can also alleviate driving and passenger fatigue during long journeys, and promote relaxation and sleep.

[0115] In some embodiments, this application also provides a seat including the aforementioned seat air blowing system. The seat air blowing system can be installed inside the seat back and then covered with seat upholstery. This design fully utilizes the internal space of the seat back without increasing the seat's volume.

[0116] like Figure 8 As shown, this application embodiment also provides a vehicle 100, including the aforementioned seat air blowing system 10 and the aforementioned seat. By integrating the seat air blowing system 10 into the seat of the vehicle 100, the overall vehicle comfort and intelligence level are improved.

[0117] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the aforementioned control method. This solution implements the control logic in software, reducing hardware complexity and improving system scalability.

[0118] This application also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the aforementioned control method. This solution solidifies the control logic through the storage medium, ensuring the stability and reliability of system operation.

[0119] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the aforementioned control method. This solution implements the control function programmatically, facilitating subsequent upgrades and maintenance.

[0120] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0121] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat air blowing system, characterized in that, include: Multi-way valve; An inflation drive assembly is connected to the inlet of the multi-way valve; as well as An air path assembly includes multiple air inlets and multiple air outlets. The multiple air inlets are respectively connected to multiple outlets of the multi-way valve. The multi-way valve changes the blowing mode of the multiple air outlets by adjusting the air volume of the multiple outlets.

2. The seat blowing system according to claim 1, characterized in that, The seat blowing system also includes a heat exchange device for exchanging heat with the gas inside the seat blowing system.

3. The seat blowing system according to claim 1, characterized in that, The inflation drive assembly is connected to the inlet of the multi-way valve via a first air pipe. The seat blowing system also includes a heat exchange device, which is disposed in contact with the first air pipe for heat exchange with the first air pipe.

4. The seat blowing system according to claim 3, characterized in that, The heat exchange device includes a refrigeration unit and a heating unit, which are respectively disposed on both sides of the first gas pipe, and at least one of the refrigeration unit and the heating unit is in direct contact with the first gas pipe.

5. The seat blowing system according to claim 3, characterized in that, The first air pipe is at least partially bent to form a first air pipe bend; the first air pipe bend is in contact with the heat exchange device.

6. The seat blowing system according to claim 5, characterized in that, The heat exchange device includes a refrigeration unit and a heating unit, which are respectively disposed on both sides of the bend in the first air pipe, and are respectively in direct contact with the first air pipe.

7. The seat air blowing system according to claim 1, characterized in that, The air circuit assembly includes: a first branch and a second branch; the multiple outlets of the multi-way valve include a first outlet and a second outlet; the air inlet of the first branch is connected to the first outlet, and the air inlet of the second branch is connected to the second outlet. The multi-way valve changes the airflow of the first branch outlet and the second branch outlet by adjusting the airflow of the first outlet and the second outlet, thereby changing the blowing mode.

8. The seat blowing system according to claim 1, characterized in that, At least one of the first branch and the second branch is a spiral structure.

9. The seat blowing system according to claim 1, characterized in that, The seat blowing system further includes a noise reduction device disposed between the outlet of the inflation drive assembly and the plurality of air outlets of the air passage assembly.

10. The seat blowing system according to claim 1, characterized in that, The seat blowing system further includes a protective device, which is disposed at multiple air outlets of the air circuit assembly. When air is emitted from the multiple air outlets, the protective device is opened under the action of the airflow.

11. The seat blowing system according to claim 1, characterized in that, The seat blowing system further includes a temperature sensor disposed on the inner wall of at least one air outlet of the air passage assembly.

12. A method for controlling a seat air blowing system, applied to a seat air blowing system as described in any one of claims 1-11, characterized in that, The method includes: Select the blower mode; According to the blowing mode, the air volume of multiple outlets of the multi-way valve is controlled.

13. The seat blowing system control method according to claim 12, characterized in that, The method further includes: According to the blowing mode, the heat exchange device is controlled to exchange heat with the gas in the seat blowing system.

14. The seat blowing system control method according to claim 13, characterized in that, The blowing mode includes a normal mode and an anti-motion sickness mode. When the blowing mode is the normal mode, the method includes: Set the blowing temperature and blowing air volume according to the adjustable range of blowing temperature and blowing air volume; In response to the set blowing temperature and blowing volume, the rotation speed of the air-inflating drive assembly, the opening degree of the multi-way valve, and the output power of the heat exchange device are adjusted to output the set blowing temperature and blowing volume.

15. The seat blowing system control method according to claim 13, characterized in that, The blowing mode includes a normal mode and an anti-motion sickness mode. When the blowing mode is the anti-motion sickness mode, the method includes: Set the blower temperature according to the adjustable range of blower temperature; In response to the set blowing temperature, the output power of the heat exchange device is adjusted to output the set blowing temperature; in response to the vehicle's motion status information, the rotation speed of the inflation drive component and the opening degree of the multi-way valve are adjusted to output the blowing volume corresponding to the vehicle's motion status.

16. The control method for the seat blowing system according to claim 15, characterized in that, The process of adjusting the rotational speed of the inflation drive assembly and the opening of the multi-way valve in response to the vehicle's motion state information, and outputting the air volume corresponding to the vehicle's motion state, includes: When the vehicle is traveling in a straight line, the rotation speed of the air-inflating drive assembly and the opening of the first and second outlets of the multi-way valve are adjusted so that the air volume of the first and second branches of the air circuit assembly is the same, and the air volume is proportional to the vehicle speed.

17. The method for controlling a seat blowing system according to claim 15, characterized in that, The process of adjusting the rotational speed of the inflation drive assembly and the opening of the multi-way valve in response to the vehicle's motion state information, and outputting the air volume corresponding to the vehicle's motion state, includes: When the vehicle turns, the rotation speed of the air-driving assembly and the opening of the first and second outlets of the multi-way valve are adjusted so that the air volume of the first and second branches of the air circuit assembly is different, and the difference in air volume between the first and second branches is proportional to the turning radius.

18. The control method for the seat blowing system according to claim 17, characterized in that, The first branch road is located on the left side of the vehicle, and the second branch road is located on the right side of the vehicle. The method includes: When the vehicle is making a left turn, the air volume of the second branch is greater than that of the first branch. When the vehicle turns right, the air volume of the first branch is greater than that of the second branch.

19. A type of seat, characterized in that, Includes the seat blowing system as described in any one of claims 1-11.

20. A vehicle, characterized in that, Includes the seat air blowing system as described in any one of claims 1-11, or the seat as described in claim 19.

21. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the seat blowing system control method as described in any one of claims 12-18.

22. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the seat blowing system control method as described in any one of claims 12-18.

23. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the seat blowing system control method as described in any one of claims 12-18.

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