Seat system, seat system control method and vehicle

Abstract

The invention relates to a seat system, a seat system control method and a vehicle. The seat system comprises a seat, a cushion massage controller and a plurality of cushion massage units. The cushion massage controller is provided with a first pin group and a plurality of second pins, each cushion massage unit is electrically connected with the first pin group, and the plurality of second pins are in one-to-one correspondence with the plurality of cushion massage units and are electrically connected with the plurality of cushion massage units; the cushion massage controller is used for receiving a massage address signal sent by the master controller, controlling at least one second pin to output a starting signal according to the massage address signal so as to enable the corresponding cushion massage unit to be in an available state, and controlling the first pin group to output a first control signal based on a first preset massage mode, therefore, the cushion massage unit in the available state is controlled to operate. According to the seat cushion massage structure, the plurality of seat cushion massage units share one seat cushion massage controller, so that the space occupied by the seat cushion massage structure can be reduced, and the layout of other parts in the seat cushion is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a seat system, a seat system control method, and a vehicle. Background Art

[0002] As users' demand for car riding comfort continues to increase, the massage function of car seats has gradually become a key configuration to improve user experience and enhance the competitiveness of the automobile market.

[0003] In the related art, for a single front seat, a massage structure is usually provided at the backrest, the massage structure including a massage actuator and a massage controller. For a rear seat, two massage structures are usually provided at the left and right backrests, respectively.

[0004] To further enhance the user experience, some car models also feature massage structures in their seat cushions. However, given the limited internal space required to accommodate multiple massage structures, minimizing the space occupied by these structures to facilitate the placement of other components within the cushion is a pressing issue. Summary of the Invention

[0005] One of the purposes of the present invention is to provide a seat system to reduce the space occupied by the massage structure in the seat cushion and facilitate the layout of other components in the seat cushion; the second purpose is to provide a seat system control method; and the third purpose is to provide a vehicle.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A seat system comprises a seat, a seat cushion massage controller and a plurality of seat cushion massage units, wherein the seat comprises a seat cushion, the seat cushion massage controller is disposed in the seat cushion, and the plurality of seat cushion massage units are disposed in the seat cushion and are respectively located in a plurality of first seat areas of the seat cushion;

[0008] The seat massage controller has a first pin group and a plurality of second pins, each of the seat massage units is electrically connected to the first pin group, and the plurality of second pins correspond to and are electrically connected to the plurality of seat massage units one by one;

[0009] The seat cushion massage controller is used to receive a massage address signal sent by the main controller, and control at least one of the second pins to output an enable signal according to the massage address signal to put the corresponding seat cushion massage unit in an available state, and control the first pin group to output a first control signal based on a first preset massage mode to control the operation of the seat cushion massage unit in the available state.

[0010] Furthermore, the seat further comprises a plurality of backrests corresponding one-to-one to the plurality of the first seat areas, each of the backrests being provided with a backrest massage controller and a backrest massage unit;

[0011] The backrest massage controller is used to receive the massage address signal sent by the main controller, and the massage address signal includes at least one address signal. The backrest massage controller is also used to output a second control signal to the backrest massage unit based on a second preset massage mode when one of the address signals in the massage address signal is consistent with a preset address, so as to control the operation of the backrest massage unit.

[0012] Furthermore, the seat system further includes a first air pump disposed in the seat cushion, each of the seat cushion massage units includes a plurality of first air pipes, a plurality of solenoid valve groups, and a plurality of first air bags, each of the solenoid valve groups includes an on-off device and a first solenoid valve connected in series, the first air pump is connected to the first air bag via a first air pipe, and the plurality of first solenoid valves in the seat cushion massage unit are respectively disposed on the plurality of air pipes;

[0013] The first pin group includes multiple first pins, and the multiple first pins are electrically connected to the multiple first solenoid valves through the multiple on-off devices in the seat cushion massage unit, and the multiple on-off devices in the seat cushion massage unit are electrically connected to the second pin; when the seat cushion massage unit is in an available state, the first solenoid valve is in an available state; the on-off device is in an on state based on the enable signal output by the second pin, so that the solenoid valve group is in an available state.

[0014] Furthermore, the number of the seat cushion massage unit, the first seat area, and the second pins is two, the two seat cushion massage units include a left seat cushion massage unit and a right seat cushion massage unit, the two second pins include a left second pin and a right second pin, the left second pin is electrically connected to the left seat cushion massage unit, and the right second pin is electrically connected to the right seat cushion massage unit;

[0015] The massage address signal includes a left address signal and / or a right address signal; the seat cushion massage controller is used to control the left second pin to output a first enable signal when the massage address signal only includes the left address signal, so that the left seat cushion massage unit is in an available state; when the massage address signal only includes the right address signal, control the right second pin to output a second enable signal, so that the right seat cushion massage unit is in an available state; when the massage address signal includes the left address signal and the right address signal, control the left second pin to output a first enable signal and the right second pin to output a second enable signal, so that both the left seat cushion massage unit and the right seat cushion massage unit are in an available state; the first enable signal and the second enable signal are both level signals.

[0016] Furthermore, a plurality of first pressure sensors are provided in the seat cushion, and the plurality of first pressure sensors are respectively located in the plurality of first seat areas;

[0017] Each of the seat cushion massage units includes two air bag groups, which are arranged at intervals along a first direction. Along the first direction, the first pressure sensor is located between the two air bag groups.

[0018] Furthermore, the seat cushion includes a foam layer and a fabric layer covering the foam layer, and a soft foam layer is provided between the fabric layer and the foam layer along the thickness direction of the seat cushion;

[0019] The fitting surface of the foam layer fits the soft foam layer, the fitting surface is provided with a receiving groove, and the first air bag in the seat massage unit is arranged in the receiving groove;

[0020] The seat system also includes a ventilation structure, which includes a ventilation fan and a ventilation cavity. The ventilation cavity is connected to a ventilation hole, and the ventilation hole passes through the foam layer and the soft foam layer. The ventilation structure is located on the side of the foam layer away from the soft foam layer.

[0021] Furthermore, along the thickness direction of the seat cushion, the ventilation hole has no overlap with the first air bag and the first pressure sensor.

[0022] Furthermore, the number of the seat cushion massage unit and the first seat area is two;

[0023] The seat cushion massage controller is located between the two seat cushion massage units, and the first air pump arranged in the seat cushion is located between the two seat cushion massage units.

[0024] Furthermore, the seat cushion also has a second seat area, which is located between the two first seat areas. A second pressure sensor is provided in the seat cushion, which is located in the second seat area and between the two seat cushion massage units.

[0025] Furthermore, a plurality of seat cushion heaters are provided in the seat cushion, and the plurality of seat cushion heaters are respectively located in a plurality of first seat areas of the seat cushion, and a backrest heater is provided in the backrest;

[0026] The main controller is used to receive massage instructions, determine a massage address signal based on the massage instructions, and send the massage address signal to the seat cushion massage controller and the backrest massage controller. At the same time, it obtains the ambient temperature and determines whether the ambient temperature is less than a set threshold. If the ambient temperature is less than the set threshold, the corresponding seat cushion heating element and the backrest heating element are controlled to operate according to the massage address signal.

[0027] Furthermore, the seat system also includes a zero gravity adjustment module. The main controller is also used to obtain the vehicle status while sending the massage address signal to the seat cushion massage controller and the backrest massage controller, and when the vehicle status is not driving, send an adjustment instruction to the zero gravity adjustment module. The zero gravity adjustment module is used to adjust the posture of the seat according to the adjustment instruction.

[0028] A seat system control method is applied to the seat system described above, the seat system control method comprising:

[0029] Receive the massage address signal sent by the main controller;

[0030] controlling at least one second pin to output an enabling signal according to the massage address signal, so as to put the corresponding seat massage unit into an available state;

[0031] The first pin group is controlled to output a first control signal based on a first preset massage mode to control the seat massage unit in the available state to operate.

[0032] A vehicle comprises the seat system described above.

[0033] Beneficial effects of the present invention:

[0034] Multiple seat cushion massage units share a single seat cushion massage controller. Compared to providing multiple massage controllers for multiple massage units, this can reduce the number of massage controllers, reduce the space occupied by the seat cushion massage structure, facilitate the layout of other components within the seat cushion, reduce hardware costs, simplify the system structure, and improve system reliability. Furthermore, the seat cushion massage controller has a first pin group and multiple second pins. The second pins on the seat cushion massage controller output an enable signal that enables the corresponding seat cushion massage unit to be in an available state. Only when the seat cushion massage unit is in an available state can it operate based on the received first control signal, thereby enabling a single seat cushion massage controller to selectively control multiple seat cushion massage units. Compared to connecting multiple massage units to multiple pin groups, this can reduce the number of output pins of the seat cushion massage controller. Even when output pin resources are limited, multiple seat cushion massage units can share a single seat cushion massage controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the electrical connections between a seat massage controller and multiple seat massage units in a seat system provided by an embodiment of the present invention;

[0036] Figure 2 A schematic structural diagram of a seat cushion massage controller, a first air pump, and multiple seat cushion massage units in a seat system provided by an embodiment of the present invention;

[0037] Figure 3 A schematic structural diagram of a seat massage controller, a first air pump, multiple seat massage units, and multiple backrest massage units in a seat system provided by an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of the electrical connections between a seat massage controller and multiple seat massage units, and a backrest massage controller and multiple backrest massage units provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the electrical connection between the seat massage controller, the on / off device, and the first solenoid valve in the seat massage unit provided by an embodiment of the present invention;

[0040] Figure 6 Schematic diagram of the horizontal layout of the internal structure of the seat cushion in the seat system provided by the embodiment of the present invention Figure 1 ;

[0041] Figure 7 Schematic diagram of the horizontal layout of the internal structure of the seat cushion in the seat system provided by the embodiment of the present invention Figure 2 ;

[0042] Figure 8 A schematic diagram of the longitudinal layout of the internal structure of a seat cushion in a seat system provided by an embodiment of the present invention;

[0043] Figure 9 Schematic diagram of the electrical connection between the seat massage controller, backrest massage controller, first heating element, second heating element, zero gravity adjustment module and the main controller provided in an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1-seat cushion, 101-fabric layer, 102-soft foam layer, 103-foam layer, 104-ventilation hole, 105-seat cushion frame, 2-seat cushion massage controller, 201-first pin group, 202-second pin, 3-seat cushion massage unit, 301-first air pipe, 302-solenoid valve group, 3021-on-off device, 3022-first solenoid valve, 303-air bag group, 3031-first air bag, 4-first air pump, 5-backrest massage controller, 6-backrest massage unit, 601-second air pipe, 602-second solenoid valve, 603-second air bag, 7-first pressure sensor, 8-second pressure sensor, 9-ventilation structure, 10-seat cushion heater, 11-backrest heater, 12-zero gravity adjustment module, 13-master controller, R-first seating area. DETAILED DESCRIPTION

[0046] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0047] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0048] In the related art, for a single front seat, a massage structure is usually provided at the backrest, and the massage structure includes a massage actuator and a massage controller. For rear seats, two massage structures are usually provided at the left backrest and the right backrest respectively. In order to further enhance the user experience, some models are also provided with a massage structure at the seat cushion. However, for a seat cushion that requires the layout of multiple massage structures, the internal space of the seat cushion is limited. How to reduce the space occupied by the massage structure in the seat cushion to facilitate the layout of other components in the seat cushion is an urgent problem to be solved. In order to solve the above problems, the embodiments of the present invention propose a seat system, a seat system control method and a vehicle. The seat system, the seat system control method and the vehicle mentioned above are described in detail below.

[0049] First, refer to Figure 1 、 Figure 2 and Figure 6The seat system provided by the embodiment of the present invention includes a seat, a seat cushion massage controller 2 and a plurality of seat cushion massage units 3, the seat includes a seat cushion 1, the seat cushion massage controller 2 is arranged in the seat cushion 1, and the plurality of seat cushion massage units 3 are arranged in the seat cushion 1, and are respectively located in a plurality of first seat areas of the seat cushion 1; the seat cushion massage controller 2 has a first pin group 201 and a plurality of second pins 202, each seat cushion massage unit 3 is electrically connected to the first pin group 201, and the plurality of second pins 202 correspond to and are electrically connected to the plurality of seat cushion massage units 3 one by one; the seat cushion massage controller 2 is used to receive a massage address signal sent by the main controller 13, and control at least one second pin 202 to output an enable signal according to the massage address signal, so that the corresponding seat cushion massage unit 3 is in an available state, and control the first pin group 201 to output a first control signal based on a first preset massage mode, so as to control the operation of the seat cushion massage unit 3 in the available state.

[0050] The seat system is applied to a vehicle. The seat can be a rear-row seat, a second-row seat, a third-row seat, etc., and correspondingly, the seat cushion 1 can be a rear-row seat, a second-row seat, a third-row seat, etc. The seat cushion massage structure provided in the seat cushion 1 includes a plurality of seat cushion massage units 3 and a seat cushion massage controller 2. The seat cushion massage unit 3 is an execution unit for realizing the seat cushion massage function, and the seat cushion massage controller 2 is used to control the seat cushion massage unit 3. The seat cushion massage unit 3 may include a plurality of first air pipes 301, a plurality of solenoid valve groups 302, and a plurality of first air bags 3031. In an embodiment of the present invention, the seat cushion massage unit 3 is provided in the seat cushion 1 to meet the massage needs of the user's buttocks and thighs, thereby improving the user experience.

[0051] The seat cushion 1 has multiple seating areas. The first seating area is also the seating area where the seat cushion 1 is provided with the seat cushion massage unit 3. The total number of seating areas in the seat cushion 1 is greater than or equal to the total number of the seat cushion massage units 3, and is greater than the number of the first seating areas. The seat cushion is also based on the second seating area. The first seating area can refer to Figure 6 The area shown by R in the figure is: There are two seat massage units 3 . When the seat is a rear three-person seat, there are two first seat areas, which are the left and right seat areas of the seat cushion 1 .

[0052] The master controller 13 may be a vehicle computer, which may receive massage instructions generated in response to user operations, determine a massage address signal based on the massage instructions, and send the massage address signal to the seat massage controller 2. The massage instruction may be generated based on the user triggering a physical massage switch, a virtual switch on a touch screen, or a voice instruction. The massage instruction may be a level signal, or may include address information. In this case, the address signal is determined based on the address information in the massage instruction. When the massage instruction is generated based on the user triggering the physical massage switch, the massage instruction is a level signal. In this case, since the position of the physical massage switch is fixed, the pin on the master controller 13 electrically connected to the physical massage switch is fixed. Therefore, the master controller 13 may determine the massage address signal based on the identification of the pin that receives the massage instruction. The massage address signal is also the address of the area where the massage function needs to be activated.

[0053] The first pin group includes multiple first pins, and the first control signal includes multiple first sub-signals. The multiple first sub-signals are respectively output by the multiple first pins, and the first sub-signals can be PWM (Pulse Width Modulation) signals. The enable signal can be a level signal. The enable signal is used to enable the seat cushion massage unit 3. The enable state refers to the state in which the seat cushion massage unit 3 can operate based on the first control signal. Only when the seat cushion massage unit 3 is in the enabled state can it realize the massage function based on the first control signal. When the seat cushion massage unit 3 does not receive the enable signal, it is in the non-enabled state. At this time, the seat cushion massage unit 3 cannot operate based on the first control signal, that is, it cannot realize the massage function based on the first control signal. The first preset massage mode can be set based on demand and is not specifically limited here. It should be noted that after the massage is completed, the seat cushion massage controller 2 stops outputting the enable signal and the first control signal. At this time, the multiple seat cushion massage units 3 are all in the non-enabled state.

[0054] As an example, the seat massage unit 3 includes a solenoid valve assembly 302, which includes a first solenoid valve 3022. When the seat massage unit 3 is in an enabled state, the first solenoid valve 3022 is in an enabled state. The solenoid valve assembly 302 also includes an on-off device 3021. The on-off device 3021 is turned on based on an enable signal output from the second pin 202, thereby enabling the solenoid valve assembly 302. As another example, the seat massage unit 3 includes a solenoid valve assembly 302, which includes a first solenoid valve 3022. When the seat massage unit 3 is in an enabled state, the first solenoid valve 3022 is in an enabled state. The solenoid valve assembly 302 includes a logic gate, wherein the input of the logic gate is connected to the first pin and the second pin, and the output of the logic gate is connected to the input of the first solenoid valve 3022. When the logic gate receives the enable signal, the first solenoid valve 3022 is in an enabled state.

[0055] In the related art, the seat cushion is arranged with multiple massage structures, that is, multiple massage actuators and multiple massage controllers, which will occupy a large space in the seat cushion and affect the layout of other components in the seat cushion. In addition, multiple massage controllers also greatly squeeze the thickness space of the seat foam layer, resulting in a decrease in seat comfort.

[0056] In an embodiment of the present invention, multiple seat massage units 3 share a single seat massage controller 2. Compared to providing multiple massage controllers for multiple massage units, this can reduce the number of massage controllers, reduce the space occupied by the seat massage structure, facilitate the layout of other components within the seat cushion 1, reduce hardware costs, simplify the system structure, and improve system reliability. Furthermore, the seat massage controller 2 has a first pin group 201 and multiple second pins 202. The second pins 202 of the seat massage controller 2 output an enable signal that enables the corresponding seat massage unit 3 to be enabled. Only when the seat massage unit 3 is enabled can it operate based on the received first control signal, thereby enabling a single seat massage controller 2 to selectively control multiple seat massage units 3. Compared to a method in which multiple massage units are connected to multiple pin groups, this can reduce the number of output pins of the seat massage controller 2. Even when output pin resources are limited, multiple seat massage units 3 can share a single seat massage controller 2.

[0057] In some embodiments, reference Figure 3 and Figure 4 The seat also includes a plurality of backrests corresponding one-to-one to the plurality of first seat areas, each backrest is provided with a backrest massage controller 5 and a backrest massage unit 6; the backrest massage controller 5 is used to receive the massage address signal sent by the main controller 13, and the massage address signal includes at least one address signal. The backrest massage controller 5 is also used to output a second control signal to the backrest massage unit 6 based on a second preset massage mode when an address signal in the massage address signal is consistent with a preset address, so as to control the operation of the backrest massage unit 6.

[0058] The backrest massage structure within the backrest includes a backrest massage controller 5, a backrest massage unit 6, and a second air pump. The master controller 13 simultaneously transmits a massage address signal to the seat massage controller 2 and the backrest massage controller 5. The master controller 13 may be a vehicle computer, which receives massage commands generated in response to user operations, determines a massage address signal based on the massage command, and transmits the massage address signal to both the seat massage controller 2 and the backrest massage controller 5. The backrest massage unit 6 includes multiple second air pipes 601, multiple second solenoid valves 602, and multiple second air bags 603. The second air pump is connected to the second air bags 603 via the second air pipes 601. The multiple second solenoid valves 602 in the seat massage unit 3 are respectively disposed on the multiple second air pipes 601. Controlling the second solenoid valves 602 controls the inflation and deflation of the second air bags 603.

[0059] The backrest massage controller 5 has a third pin group electrically connected to the backrest massage unit 6. The third pin group includes a plurality of third pins, the number of which is equal to the number of second solenoid valves 602. The plurality of third pins are electrically connected to the plurality of second solenoid valves 602, respectively. The third pins are specifically connected to the second solenoid valves via hardwires. The second control signal includes a plurality of second sub-signals, each of which is output by the plurality of third pins. The second sub-signals may be PWM (Pulse Width Modulation) signals.

[0060] The seat is a rear-row seat, for example, a rear-row three-person seat. In this case, the number of the first seat area is two, and the number of the backrest is two, and the two backrests are respectively a left backrest and a right backrest. In the related art, for a rear-row three-person seat, usually only the left and right backrest areas have a massage function, and there is no seat cushion massage function. For an independent four-part seat, four different controllers are used to control the massage functions of the seat cushion and backrest of the left seat and the right seat respectively. In this embodiment, for the rear-row three-person seat, it has both a seat cushion massage function and a backrest massage function, which can meet the massage needs of the user's buttocks, thighs, and waist, and can enhance the user experience.

[0061] The preset address corresponding to the left backrest is the left address, and the preset address corresponding to the right backrest is the right address. For example, when the massage address signals received by the two backrest massage controllers 5 for the left and right backrests only include the left address signal, the backrest massage controller 5 for the left backrest determines that the left address signal is consistent with the left address and outputs a second control signal to the backrest massage unit 6 based on the second preset massage mode to control the operation of the backrest massage unit 6. The second preset massage mode can be set based on needs and is not specifically limited here.

[0062] Regarding the control architecture selection for the rear seat cushion and backrest massage structure, if a single massage controller is used to coordinate the massage functions of the rear seat cushion and backrest, there are dual technical bottlenecks in terms of functionality and assembly processability. From the perspective of functional implementation, the independent angle adjustment of the left and right sides of the rear backrest requires differentiated control strategies. A single controller cannot simultaneously meet the different motion control logic and feedback requirements of the left and right sides, resulting in the incompatibility of the backrest angle adjustment function and the massage function. At the assembly process level, the rear seats are usually divided into three independent assembly modules: seat cushion, left backrest, and right backrest. If they are merged into one whole, it will not only increase the complexity of the workstation and extend the assembly cycle, but also may cause the risk of interference in multi-system integration.

[0063] In an embodiment of the present invention, the massage functions of the two first seat areas of the rear seat are controlled by a seat cushion massage controller 2, the massage function at the left backrest is controlled by a backrest massage controller 5 in the left backrest, and the massage function at the right backrest is controlled by a backrest massage controller 5 in the right backrest, thereby achieving precise control of the massage functions in different zones.

[0064] In the prior art, the logic of the backrest massage mechanism and the seat cushion massage mechanism are separated, and they operate independently, making it impossible to achieve coordinated massage. In the embodiment of the present invention, the master controller 13 sends massage address signals to both the seat cushion massage controller 2 and the backrest massage controller 5, so that the seat cushion massage unit 3 operates simultaneously with the backrest massage unit 6, thereby achieving coordinated seat cushion and backrest massage functions. This allows users to enjoy a coherent and coordinated full-body massage experience, thereby meeting their diverse and high-quality massage needs.

[0065] In some embodiments, reference Figure 2 、 Figure 3 and Figure 5 The seat system also includes a first air pump 4 provided in the seat cushion 1. Each seat cushion massage unit 3 includes multiple first air pipes 301, multiple solenoid valve groups 302 and multiple first air bags 3031. Each solenoid valve group 302 includes a switching device 3021 and a first solenoid valve 3022 connected in series. The first air pump 4 is connected to the first air bag 3031 through the first air pipe 301. The multiple first solenoid valves 3022 in the seat cushion massage unit 3 are respectively provided on the multiple first air pipes 301; the first pin group 201 includes multiple first pins, and the multiple first pins are electrically connected to the multiple first solenoid valves 3022 through the multiple switching devices 3021 in the seat cushion massage unit 3. The multiple switching devices 3021 in the seat cushion massage unit 3 are all electrically connected to the corresponding second pins 202; when the seat cushion massage unit 3 is in an available state, the first solenoid valve 3022 is in an available state; the switching device 3021 is in a conducting state based on the enable signal output by the second pin 202, so that the solenoid valve group 302 is in an available state.

[0066] The seat massage structure within the seat cushion 1 also includes a first air pump 4. A single seat massage unit 3 can include six first air bags 3031, enabling a six-point massage function. When there are six first air bags 3031 in a single seat massage unit 3, three first air bags 3031 on one side form an air bag group 303, and three first air bags 3031 on the other side form an air bag group 303.

[0067] The first pin is specifically connected to the first solenoid valve 3022 via a hardwire, and the second pin is specifically connected to the on-off device 3021 via a hardwire. The number of first pins is equal to the number of first solenoid valves 3022, and the multiple first pins are electrically connected to the first solenoid valves 3022 via the multiple on-off devices 3021. The first pin is electrically connected to the first solenoid valve 3022 via the on-off devices 3021. The first sub-signal output by the first pin can only be transmitted to the first solenoid valve 3022 when the on-off device 3021 is in the on state. In other words, the solenoid valve assembly 302 is only in an operational state when the on-off device 3021 is in the on state.

[0068] The inflation and deflation of the first air bag 3031 can be controlled by controlling the first solenoid valve 3022. As an example, when the first solenoid valve 3022 is energized, the first air pump 4 communicates with the first air bag 3031 via the first air tube 301. The first air pump 4 continuously delivers air, which fills the first air bag 3031, causing it to expand and generate massage pressure. When the first solenoid valve 3022 is de-energized, the first air bag 3031 deflates. The on / off device 3021 can be a transistor, a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), or the like.

[0069] As an example, refer to Figure 5 There are two seat cushion massage units 3 and two second pins 202. Each seat cushion massage unit 3 includes six solenoid valve groups 302. Each solenoid valve group 302 includes a first solenoid valve 3022 and a switching device 3021. At this time, the first pin group includes six first pins, and the six first pins are electrically connected to the six first solenoid valves 3022 in one of the seat cushion massage units 3, and are electrically connected to the six first solenoid valves 3022 in another seat cushion massage unit 3. One of the second pins 202 is electrically connected to the six switching devices 3021 in one of the seat cushion massage units 3, and the other second pin 202 is electrically connected to the six switching devices 3021 in the other seat cushion massage unit 3.

[0070] In this embodiment of the present invention, the addition of a hardware switch 3021 allows for the activation of different seat massage units 3, resulting in a simple and reliable structure. When there are two seat massage units 3, they share a single seat massage controller 2 and a single first air pump 4. This effectively reduces the space occupied by the seat massage structure and increases the foaming volume by approximately 0.003 cubic meters, thereby enhancing passenger comfort. Furthermore, by eliminating one massage controller and one air pump, material costs are saved by approximately 60 yuan.

[0071] In some embodiments, the number of seat cushion massage units 3, first seat areas, and second pins 202 is two, the two seat cushion massage units 3 include a left seat cushion massage unit and a right seat cushion massage unit, the two second pins 202 include a left second pin and a right second pin, the left second pin is electrically connected to the left seat cushion massage unit, and the right second pin is electrically connected to the right seat cushion massage unit; the massage address signal includes a left address signal and / or a right address signal; the seat cushion massage controller 2 is used to control the left second pin to output a first enable signal when the massage address signal only includes the left address signal, so that the left seat cushion massage unit is in an available state; when the massage address signal only includes the right address signal, control the right second pin to output a second enable signal, so that the right seat cushion massage unit is in an available state; when the massage address signal includes the left address signal and the right address signal, control the left second pin to output a first enable signal, and the right second pin to output a second enable signal, so that both the left seat cushion massage unit and the right seat cushion massage unit are in an available state; the first enable signal and the second enable signal are both level signals.

[0072] The left seat massage unit is located on the left side of the seat cushion 1 and is used to massage the left side of the seat cushion 1. The right seat massage unit is located on the right side of the seat cushion 1 and is used to massage the right side of the seat cushion 1. The left-right, up-down, and fore-and-aft orientations of the seat system are consistent with those of the vehicle.

[0073] The first enable signal can be a high-level signal or a low-level signal, and the second enable signal can be a high-level signal or a low-level signal. The level signal types of the first enable signal and the second enable signal can be the same or different. When the level signal types of the first enable signal and the second enable signal are different, the on-off device 3021 in the left seat massage unit and the on-off device 3021 in the right seat massage unit are in the on state based on the different level signals.

[0074] As an example, the left seat cushion massage unit and the right seat cushion massage unit both include 6 first solenoid valves 3022. At this time, the first pin group includes 6 first pins, the 6 first pins are electrically connected to the 6 first solenoid valves 3022 in the left seat cushion massage unit, and electrically connected to the 6 first solenoid valves 3022 in the right seat cushion massage unit, the left second pin is electrically connected to the 6 on-off devices 3021 in the left seat cushion massage unit, and the right second pin is electrically connected to the 6 on-off devices 3021 in the right seat cushion massage unit.

[0075] In some embodiments, a plurality of first pressure sensors 7 are provided in the seat cushion 1, and the plurality of first pressure sensors 7 are respectively located in a plurality of first seat areas; each seat cushion massage unit 3 includes two air bag groups 303, and the two air bag groups 303 are arranged at intervals along the first direction, and along the first direction, the first pressure sensor 7 is located between the two air bag groups 303.

[0076] The first direction is specifically the length direction of the seat. Figure 2 、 Figure 6 and Figure 7 When each cushion massage unit 3 includes six first air bags 3031 , three first air bags 3031 on one side form an air bag group 303 , and three first air bags 3031 on the other side form an air bag group 303 .

[0077] The first pressure sensor 7 is specifically a pressure sensor in the SBR (Seat Belt Reminder) system. The first pressure sensor 7 is used to detect whether the first seating area is occupied. There are two seat massage units 3 and two first seating areas. If the two seat massage units 3 include a left seat massage unit and a right seat massage unit, there are also two first pressure sensors 7. The left first pressure sensor 7 is located between the two airbag groups 303 in the left seat massage unit, and the right first pressure sensor 7 is located between the two airbag groups 303 in the right seat massage unit. The first pressure sensor 7 preferably maintains a gap of at least 20 mm between the first airbag 3031.

[0078] In the prior art, arranging both the massage structure and the pressure sensor in the seat cushion is difficult to coordinate and can easily lead to interference, which not only affects the normal operation of each system but also compromises the compactness, aesthetics, and comfort of the seat's overall structure. In this embodiment of the present invention, the first pressure sensor 7 is located between the two airbag groups 303. The layout of the airbag groups 303 avoids the location of the first pressure sensor 7, preventing interference between the pressure sensor in the SBR and the seat cushion massage structure, thus ensuring the normal operation of both the SBR and the seat cushion massage structure.

[0079] In some embodiments, reference Figures 6 to 8The seat cushion 1 includes a foam layer 103 and a fabric layer 101 wrapped around the foam layer 103. A soft foam layer 102 is further provided between the fabric layer 101 and the foam layer 103 along the thickness direction of the seat cushion 1; the fitting surface of the foam layer 103 is fitted with the soft foam layer 102, and a accommodating groove is provided on the fitting surface. The first air bag 3031 in the seat cushion massage unit 3 is provided in the accommodating groove; the seat system also includes a ventilation structure 9, the ventilation structure 9 includes a ventilation fan and a ventilation cavity, the ventilation cavity is connected to a ventilation hole 104, the ventilation hole 104 passes through the foam layer 103 and the soft foam layer 102, and the ventilation structure 9 is located on the side of the foam layer 103 away from the soft foam layer 102.

[0080] The seat cushion 1 may further include a seat cushion frame 105. The thickness direction of the seat cushion 1 may refer to Figure 8 The direction is indicated by arrow C. The foam layer 103 has a contact surface that contacts the soft foam layer 102 and a bottom that is spaced away from the soft foam layer 102. The ventilation structure 9 is located on the side of the foam layer 103 that is spaced away from the soft foam layer 102, that is, the ventilation structure 9 is provided at the bottom of the foam layer 103. The ventilation cavity can be formed by slotting the bottom of the foam layer 103, or by providing a ventilation housing at the bottom of the foam layer 103 to form the ventilation cavity. The ventilation cavity has multiple openings, which correspond to and communicate with the multiple ventilation holes 104.

[0081] During the seat design phase, the upper surface of fabric layer 101 can be determined based on seat surface A. This surface is offset downward by the thickness of fabric layer 101, i.e., 8 mm, to determine surface A for placement of soft foam layer 102. Surface A of soft foam layer 102 is offset downward by 20 mm to determine the contact surface of foam layer 103. This contact surface of foam layer 103 is offset downward by 8 mm to determine the bottom wall of the accommodating groove. First pressure sensor 7 and second pressure sensor 8 are preferably located on the contact surface of foam layer 103.

[0082] In the prior art, arranging both a massage structure and a ventilation system within a seat cushion is difficult to coordinate, and interference is likely to occur. This not only affects the normal operation of each system but also compromises the compactness, aesthetics, and comfort of the overall seat structure. In the embodiment of the present invention, the ventilation structure 9 and the first airbag 3031 in the seat massage unit 3 are arranged vertically staggered, resolving the spatial arrangement issue and preventing interference between the ventilation structure 9 and the seat massage structure, thereby ensuring their normal operation.

[0083] In some embodiments, along the thickness of the seat cushion 1, the ventilation holes 104 do not overlap with the first airbag 3031 and the first pressure sensor 7. The cross-sectional shape of the ventilation holes 104 can be circular, waist-shaped, rectangular, or the like. In this embodiment of the present invention, the ventilation holes 104 are horizontally staggered with the first airbag 3031 and the first pressure sensor 7 to prevent interference between the ventilation holes 104 and the seat cushion massage structure and the SBR.

[0084] In order to maximize the integration of seat functions and the experience of the ventilation system, through ventilation fluid analysis and human body pressure distribution analysis, it is preferred to open multiple ventilation holes 104 between the two air bag groups 303 in a seat massage unit 3. In addition, along the width direction of the seat cushion 1, that is, Figure 6 In the direction indicated by the arrow B, ventilation holes 104 are also provided between two adjacent first air bags 3031. Through the above arrangement, the ventilation effect can be ensured while providing a good massage experience, and the poor ventilation effect caused by small openings and the insufficient seat support caused by large openings can be avoided.

[0085] In some embodiments, reference Figure 2 、 Figure 3 and Figure 6 There are two seat massage units 3 and two first seating areas. The seat massage controller 2 is located between the two seat massage units 3, and the first air pump 4, installed in the seat cushion 1, is located between the two seat massage units 3. The seat cushion 1 also has a second seating area, which is located between the two first seating areas. The seat massage controller 2 and the first air pump 4 are located in the second seating area, which is the middle area of ​​the seat cushion 1.

[0086] In this embodiment of the present invention, the seat massage controller 2 is positioned in the center of the seat cushion 1, facilitating rational and concise wiring without interfering with the layout of other components. The seat massage controller 2 is preferably located near the front of the second seating area, where it is easily accessible for maintenance. Placing the seat massage controller 2 in the center of the seat cushion 1 also allows for symmetrical left-right wiring and ensures a secure and reliable connection between the seat massage controller 2 and the seat massage unit 3, preventing looseness or poor contact.

[0087] In an embodiment of the present invention, the first air pump 4 is arranged in the middle area of ​​the seat cushion 1, which is conducive to the rationality and simplicity of the layout of the first air pipe 301, and the first air pump 4 will not affect the layout of other components. In order not to affect the riding comfort, it is preferred to arrange the first air pump 4 in the front position of the second seat area. In order not to affect the left and right side wiring harnesses and the symmetrical layout, it is preferred to arrange the first air pump 4 above the first air pipe 301. It should be noted that the bending radius of the first air pipe 301 needs to be greater than 2 times the wire diameter, and the layout of the first air pipe 301 also needs to consider the avoidance and compatibility with foam, skeleton, wiring harness, ventilation, heating and other systems.

[0088] In some embodiments, the seat cushion 1 further has a second seating area, which is located between the two first seating areas. A second pressure sensor 8 is provided in the seat cushion 1 , which is located in the second seating area and between the two seat cushion massage units 3 .

[0089] The second seating area is the middle area of ​​the seat cushion 1. The second pressure sensor 8 is specifically the pressure sensor in the SBR (Seat Belt Reminder) system. In this embodiment of the present invention, the second pressure sensor 8 is located between the two seat massage units 3. This arrangement avoids the location of the first pressure sensor 7, preventing interference between the pressure sensor in the SBR and the seat massage mechanism, ensuring proper operation of both the SBR and the seat massage mechanism.

[0090] In some embodiments, reference Figure 9 A plurality of seat cushion heating elements 10 are provided in the seat cushion 1, and the plurality of seat cushion heating elements 10 are respectively located in a plurality of first seat areas of the seat cushion 1, and a backrest heating element 11 is provided in the backrest; the main controller 13 is used to receive massage instructions, determine the massage address signal based on the massage instructions, and send the massage address signal to the seat cushion massage controller 2 and the backrest massage controller 5, and at the same time obtain the ambient temperature and determine whether the ambient temperature is less than the set threshold. If the ambient temperature is less than the set threshold, the corresponding seat cushion heating element 10 and the backrest heating element 11 are controlled to operate according to the massage address signal.

[0091] Among them, if the ambient temperature is greater than or equal to the set threshold, the corresponding seat cushion heater 10 and backrest heater 11 will not be controlled to operate. The corresponding seat cushion heater 10 and backrest heater 11 are controlled to operate according to the massage address signal. For example, if the massage address signal only includes the left address signal, the seat cushion heater 10 and backrest heater 11 on the left side will be controlled to operate. In an embodiment of the present invention, when the massage function is turned on, if it is determined that the ambient temperature is less than the set threshold, the corresponding seat cushion heater 10 and backrest heater 11 will also be turned on at the same time, which can improve the user experience.

[0092] In some embodiments, reference Figure 9 The seat system also includes a zero-gravity adjustment module 12. The main controller 13 is also used to send massage address signals to the seat massage controller 2 and the backrest massage controller 5 while obtaining the vehicle status. When the vehicle status is not driving, it sends an adjustment instruction to the zero-gravity adjustment module 12. The zero-gravity adjustment module 12 is used to adjust the posture of the seat according to the adjustment instruction.

[0093] Among them, the zero gravity adjustment module 12 includes a zero gravity controller and a zero gravity execution unit, and the zero gravity execution unit may include a slide rail adjustment component, a backrest adjustment component, a tilt adjustment component, a leg rest adjustment component, etc. The non-driving state may be a parking state. When the vehicle state is a driving state, no adjustment instruction is sent to the zero gravity adjustment module 12. The adjustment instruction may be a pre-set instruction, and the posture of the corresponding adjusted seat is fixed. In an embodiment of the present invention, while the massage function is turned on, if the vehicle state is a non-driving state, the posture of the seat will also be adjusted simultaneously, which can enhance the user experience.

[0094] In a second aspect, embodiments of the present invention provide a seat system control method, which is applicable to the seat system provided in the first aspect. The seat system control method includes: receiving a massage address signal from a master controller; controlling at least one second pin to output an enable signal based on the massage address signal to enable the corresponding seat massage unit; and controlling a first pin group to output a first control signal based on a first preset massage mode to control the seat massage unit in the enabled state.

[0095] Among them, the main controller 13 can be a vehicle computer, which can receive massage instructions generated in response to user operations, determine a massage address signal based on the massage instructions, and send the massage address signal to the seat massage controller 2. The massage instruction can be generated based on the user triggering a physical massage switch, a virtual switch on the touch screen, or a voice instruction. The massage instruction can be a level signal, and the massage instruction can also include address information. In this case, the address signal is determined based on the address information in the massage instruction. When the massage instruction is generated based on the user triggering the physical massage switch, the massage instruction is a level signal. At this time, since the position of the physical massage switch is fixed, the pin on the main controller 13 that is electrically connected to the physical massage switch is fixed. Therefore, the main controller 13 can determine the massage address signal based on the identification of the pin that receives the massage instruction. The massage address signal is also the address of the area where the massage function needs to be activated.

[0096] The first pin group includes multiple first pins, and the first control signal includes multiple first sub-signals. The multiple first sub-signals are respectively output by the multiple first pins, and the first sub-signals can be PWM (Pulse Width Modulation) signals. The enable signal can be a level signal. The first preset massage mode can be set based on demand and is not specifically limited here. The enable signal is used to put the seat cushion massage unit 3 into an enabled state. The enabled state refers to the state in which the seat cushion massage unit 3 can operate based on the first control signal. The seat cushion massage unit 3 can only realize the massage function based on the first control signal when it is in the enabled state. When the seat cushion massage unit 3 does not receive the enable signal, it is in a non-enabled state. At this time, the seat cushion massage unit 3 cannot operate based on the first control signal, that is, it cannot realize the massage function based on the first control signal. It should be noted that after the massage is completed, the seat cushion massage controller 2 stops outputting the enable signal and the first control signal. At this time, the multiple seat cushion massage units 3 are all in a non-enabled state.

[0097] In some embodiments, the number of seat cushion massage units 3, first seat areas, and second pins 202 is two, the two seat cushion massage units 3 include a left seat cushion massage unit and a right seat cushion massage unit, the two second pins 202 include a left second pin and a right second pin, the left second pin is electrically connected to the left seat cushion massage unit, and the right second pin is electrically connected to the right seat cushion massage unit; the massage address signal includes a left address signal and / or a right address signal; controlling at least one second pin to output an enable signal according to the massage address signal to put the corresponding seat cushion massage unit in an available state includes: when the massage address signal only includes the left address signal, controlling the left second pin to output a first enable signal to put the left seat cushion massage unit in an available state; when the massage address signal only includes the right address signal, controlling the right second pin to output a second enable signal to put the right seat cushion massage unit in an available state; when the massage address signal includes the left address signal and the right address signal, controlling the left second pin to output a first enable signal and the right second pin to output a second enable signal to put both the left seat cushion massage unit and the right seat cushion massage unit in an available state.

[0098] In a third aspect, an embodiment of the present invention provides a vehicle, comprising the seat system provided in the first aspect.

[0099] Since the vehicle includes the above-mentioned seat system, it also has the beneficial effects of the above-mentioned seat system, which will not be described in detail here.

[0100] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A seat system, characterized in that: The invention comprises a seat, a seat cushion massage controller (2) and a plurality of seat cushion massage units (3), wherein the seat comprises a seat cushion (1), the seat cushion massage controller (2) is arranged in the seat cushion (1), and the plurality of seat cushion massage units (3) are arranged in the seat cushion (1) and are respectively located in a plurality of first seat areas of the seat cushion (1); The seat cushion massage controller (2) has a first pin group (201) and a plurality of second pins (202), each of the seat cushion massage units (3) is electrically connected to the first pin group (201), and the plurality of second pins (202) correspond to and are electrically connected to the plurality of seat cushion massage units (3) in a one-to-one manner; The seat massage controller (2) is used to receive a massage address signal sent by a main controller (13), and control at least one of the second pins (202) to output an enable signal according to the massage address signal, so as to put the corresponding seat massage unit (3) into an available state, and control the first pin group (201) to output a first control signal based on a first preset massage mode, so as to control the operation of the seat massage unit (3) in the available state.

2. The seat system according to claim 1, wherein: The chair further comprises a plurality of backrests corresponding one-to-one to the plurality of first seat areas, each of the backrests being provided with a backrest massage controller (5) and a backrest massage unit (6); The backrest massage controller (5) is used to receive the massage address signal sent by the main controller (13), wherein the massage address signal includes at least one address signal. The backrest massage controller (5) is also used to output a second control signal to the backrest massage unit (6) based on a second preset massage mode when one of the address signals in the massage address signal is consistent with a preset address, so as to control the operation of the backrest massage unit (6).

3. The seat system according to claim 1, wherein: The seat system further comprises a first air pump (4) arranged in the seat cushion (1); each of the seat cushion massage units (3) comprises a plurality of first air pipes (301), a plurality of solenoid valve groups (302) and a plurality of first air bags (3031); each of the solenoid valve groups (302) comprises a serially connected on-off device (3021) and a first solenoid valve (3022); the first air pump (4) is connected to the first air bag (3031) via the first air pipe (301); and the plurality of first solenoid valves (3022) in the seat cushion massage unit (3) are respectively arranged on the plurality of first air pipes (301); The first pin group (201) comprises a plurality of first pins, wherein the plurality of first pins are electrically connected to the plurality of first solenoid valves (3022) through the plurality of on-off devices (3021) in the seat massage unit (3), and the plurality of on-off devices (3021) in the seat massage unit (3) are electrically connected to the corresponding second pins (202); when the seat massage unit (3) is in an available state, the first solenoid valve (3022) is in an available state; and the on-off device (3021) is in an on state based on an enabling signal output by the second pin (202), so that the solenoid valve group (302) is in an available state.

4. The seat system according to any one of claims 1 to 3, characterized in that The number of the seat cushion massage unit (3), the first seat area, and the second pins (202) is two, the two seat cushion massage units (3) include a left seat cushion massage unit and a right seat cushion massage unit, the two second pins (202) include a left second pin and a right second pin, the left second pin is electrically connected to the left seat cushion massage unit, and the right second pin is electrically connected to the right seat cushion massage unit; The massage address signal includes a left address signal and / or a right address signal; the seat cushion massage controller (2) is used to control the left second pin to output a first enable signal when the massage address signal only includes the left address signal, so that the left seat cushion massage unit is in an available state; when the massage address signal only includes the right address signal, control the right second pin to output a second enable signal, so that the right seat cushion massage unit is in an available state; when the massage address signal includes the left address signal and the right address signal, control the left second pin to output a first enable signal and the right second pin to output a second enable signal, so that both the left seat cushion massage unit and the right seat cushion massage unit are in an available state; the first enable signal and the second enable signal are both level signals.

5. The seat system according to any one of claims 1 to 3, characterized in that: A plurality of first pressure sensors (7) are provided in the seat cushion (1), and the plurality of first pressure sensors (7) are respectively located in the plurality of first seat areas; Each of the seat cushion massage units (3) comprises two air bag groups (303), the two air bag groups (303) being arranged at intervals along a first direction, and the first pressure sensor (7) being located between the two air bag groups (303) along the first direction.

6. The seat system according to claim 5, characterized in that The seat cushion (1) comprises a foam layer (103) and a fabric layer (101) covering the foam layer (103); and a soft foam layer (102) is further provided between the fabric layer (101) and the foam layer (103) along the thickness direction of the seat cushion (1); The fitting surface of the foam layer (103) fits the soft foam layer (102), and the fitting surface is provided with a receiving groove, and the first air bag (3031) in the seat massage unit (3) is provided in the receiving groove; The seat system further comprises a ventilation structure (9), wherein the ventilation structure (9) comprises a ventilation fan and a ventilation cavity, wherein the ventilation cavity is connected to a ventilation hole (104), wherein the ventilation hole (104) passes through the foam layer (103) and the soft foam layer (102), and the ventilation structure (9) is located on a side of the foam layer (103) away from the soft foam layer (102).

7. The seat system according to claim 6, characterized in that Along the thickness direction of the seat cushion (1), the ventilation hole (104) has no overlap with the first air bag (3031) and the first pressure sensor (7).

8. The seat system according to any one of claims 1 to 3, characterized in that The number of the cushion massage units (3) and the first seat area is two; The seat cushion massage controller (2) is located between the two seat cushion massage units (3), and the first air pump (4) provided in the seat cushion (1) is located between the two seat cushion massage units (3).

9. The seat system according to claim 8, characterized in that The seat cushion (1) also has a second seat area, which is located between the two first seat areas. A second pressure sensor (8) is provided in the seat cushion (1), which is located in the second seat area and between the two seat cushion massage units (3).

10. The seat system according to claim 2, wherein: A plurality of seat cushion heating elements (10) are provided in the seat cushion (1), and the plurality of seat cushion heating elements (10) are respectively located in a plurality of first seat areas of the seat cushion (1), and a backrest heating element (11) is provided in the backrest; The master controller (13) is used to receive massage instructions, determine a massage address signal based on the massage instructions, and send the massage address signal to the seat massage controller (2) and the backrest massage controller (5), and simultaneously obtain the ambient temperature and determine whether the ambient temperature is less than a set threshold. If the ambient temperature is less than the set threshold, the corresponding seat heating element (10) and the backrest heating element (11) are controlled to operate according to the massage address signal.

11. The seat system according to claim 10, wherein: The seat system further comprises a zero-gravity adjustment module (12). The master controller (13) is further configured to obtain a vehicle state while sending the massage address signal to the seat massage controller (2) and the backrest massage controller (5). When the vehicle state is a non-driving state, the master controller (13) sends an adjustment instruction to the zero-gravity adjustment module (12). The zero-gravity adjustment module (12) is configured to adjust the posture of the seat according to the adjustment instruction.

12. A seat system control method, characterized in that: Applied to the seat system according to any one of claims 1 to 11, the seat system control method comprises: Receive the massage address signal sent by the main controller; controlling at least one second pin to output an enabling signal according to the massage address signal, so as to put the corresponding seat massage unit into an available state; The first pin group is controlled to output a first control signal based on a first preset massage mode to control the seat massage unit in the available state to operate.

13. A vehicle, characterized in that: Comprising a seat system according to any one of claims 1 to 11.

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