Seat limiting system and vehicle

Abstract

The present application relates to the technical field of seat control, in particular to a seat limiting system and a vehicle. The seat limiting system comprises a seat, an adjusting mechanism, an interior trim panel and a limit switch. The seat is connected with the adjusting mechanism, and the adjusting mechanism is used for adjusting the position of the seat. The interior trim panel comprises an interference area which interferes with the seat during movement. The limit switch is located at the interference area, and the limit switch is in communication connection with the adjusting mechanism. During movement of the seat, the limit switch is pressed, and the limit switch sends a limit signal after being turned on. The adjusting mechanism stops moving or moves back according to the limit signal. When the seat interferes with the interference area of the interior trim panel during movement, the seat presses the limit switch. The limit switch sends a limit signal after being turned on. The adjusting mechanism stops moving or moves back according to the limit signal, which prevents further movement of the seat, prevents the possibility of overheat protection of the adjusting mechanism, damage to the internal components of the adjusting mechanism, and even avoids fire or other unknown risks.

Description

Technical Field

[0001] This invention relates to the field of seat control technology, specifically to a seat limiting system and a vehicle. Background Technology

[0002] Vehicles are primarily used for transporting people and / or goods; towing vehicles carrying people and / or goods; and for special purposes. A car seat is a seat used while riding in a vehicle. Car seats provide drivers and passengers with an easy-to-operate, comfortable, and safe driving and riding position. Car seats should be rationally arranged throughout the passenger compartment and adjustable to meet the comfort needs of drivers and passengers. In existing technologies, if the rear seats are designed as four seats with eight-way adjustment, due to the limited rear space, the seat back may interfere with the rear side panel during adjustment, affecting travel. Overload and stalling of the seat motor may lead to overheating protection, damage to the motor, or even fire and other unknown risks. Summary of the Invention

[0003] Therefore, the present invention provides a seat limiting system to solve the problems in the prior art that may cause overheating protection, damage to the motor, or even fire and other unknown risks during seat adjustment.

[0004] The present invention also provides a vehicle with the advantage of safer seat adjustment.

[0005] This invention provides a seat limiting system, including a seat, an adjustment mechanism, an interior panel, and a limit switch. The seat is connected to the adjustment mechanism, which is used to adjust the position of the seat. The interior panel includes an interference area that interferes with the movement of the seat. The limit switch is located in the interference area and is communicatively connected to the adjustment mechanism. When the limit switch is pressed during the movement of the seat, the limit switch is turned on and sends a limit signal. The adjustment mechanism stops moving or rebounds according to the limit signal.

[0006] Optionally, the interference positions of the seat with the interior panel in all postures are marked, and at least two extreme positions are identified, the interference area including the surface of the interior panel between at least two of the extreme positions.

[0007] Optionally, the seat includes a seat back, which is in surface-to-surface contact with the limit switch.

[0008] Optionally, the limit switch includes a plurality of first micro switches, which are distributed in the interference region. When any one of the first micro switches is turned on, the limit switch is turned on.

[0009] Optionally, the limit switch includes at least four first micro switches, which are distributed at and / or near the four corners of the limit switch.

[0010] Optionally, the limit switch includes a switch inner shell, a positioning post, a switch base, and a switch pressure post; One end of the positioning post is connected to the switch base, and the other end is connected to the switch inner shell. The positioning post is located in the middle of the switch inner shell. The switch pressure post is connected to the inner shell of the switch, close to the outer periphery of the inner shell of the switch, and is correspondingly arranged with the first micro switch; The second micro switch is connected to the switch base. The inner shell of the switch moves relative to the switch base so that the corresponding switch pressure post and the second micro switch come into contact, and the first micro switch is turned on.

[0011] Optionally, the system further includes a controller connected to the limit switch and the adjusting mechanism. The controller is used to receive signals from the limit switch and control the operation of the adjusting mechanism.

[0012] Optionally, the controller includes a gateway module, which is communicatively connected to the limit switch and the adjusting mechanism.

[0013] Optionally, the adjustment mechanism includes a motor.

[0014] The present invention also provides a vehicle including the above-described seat limiting system.

[0015] The seat limiting system of this invention allows drivers and passengers to adjust the seat position according to comfort or other needs via an adjusting mechanism. When interference occurs between the seat and the interior trim panel during seat movement, a limit switch located at the interference area triggers the seat to activate the limit switch. Upon activation, the limit switch sends a limit signal, causing the adjusting mechanism to stop moving or spring back based on the signal, preventing further seat movement and mitigating the risk of overheating and damage to the internal components of the adjusting mechanism. This also helps prevent fires or other unknown risks.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the seat structure and its placement according to the present invention; Figure 2 This is a schematic diagram of the limit switch and interior trim panel in the seat limiting system of the present invention; Figure 3 This is a structural schematic diagram of the two extreme positions A1-A2 in the seat limiting system of the present invention; Figure 4 This is a schematic diagram showing the arrangement of the four microswitches in the seat limiting system of the present invention; Figure 5 for Figure 4 A schematic diagram of the structure of two microswitches located at the mid-to-long axis; Figure 6 for Figure 5 A schematic diagram of the structure with a deflection angle α of the mid-to-long axis; Figure 7 for Figure 4 A schematic diagram of the structure of two microswitches at the mid-short axis position; Figure 8 This is a schematic diagram illustrating the principle of a limit switch. Figure 9 This is a schematic diagram of the gateway module. Explanation of reference numerals in the attached figures: 1-Seat; 11-Seat backrest; 2-Adjustment mechanism; 3-Interior panel; 4-Limit switch; 41-First micro switch; 411-Switch inner shell; 412-Positioning post; 413-Switch base; 414-Switch pressure post; 415-Second micro switch; 42-Long shaft; 43-Short shaft; 5-Gateway module; 6-Rear wheel cover. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 9 As shown, one embodiment of this application discloses a seat limiting system, including a seat 1, an adjustment mechanism 2, an interior panel 3, and a limit switch 4. The seat 1 is connected to the adjustment mechanism 2, and the adjustment mechanism 2 is used to adjust the position of the seat 1.

[0022] The interior panel 3 includes an interference area that interferes with the movement of the seat 1. The limit switch 4 is located in the interference area and is communicatively connected to the adjustment mechanism 2. When the seat 1 moves, the limit switch 4 is pressed. After the limit switch 4 is turned on, it sends a limit signal. The adjustment mechanism 2 stops moving or rebounds according to the limit signal.

[0023] Specifically, seat 1 refers to the seat used when riding in the vehicle. Seat 1 is typically named according to its location: those in the front row are called front seats, those in the second row are called second-row seats, and so on. Because the front seats have more space to move, the probability of interference between the front seats and the interior panel 3 is low. Therefore, in this application, seat 1 usually refers to the second-row seats, but it could also refer to the third-row seats, etc. Both the second-row and front seats are platform-based and can achieve eight-way adjustment, which includes seat forward / backward movement, seat up / down movement, seat tilt, and seat back tilt.

[0024] The adjustment mechanism 2 is used to adjust the position of the seat 1, so that the seat 1 can be adjusted in eight directions.

[0025] The interference area is the area where interference occurs between the interior panel 3 and the seat 1 during movement, and is determined based on actual usage.

[0026] In the seat limiting system of this embodiment, when the driver and passengers adjust the position of seat 1 according to their comfort needs, the adjustment mechanism 2 adjusts the position of seat 1. If interference occurs between seat 1 and the interior panel 3 during movement, the limit switch 4, located at the interference area, will be activated by seat 1. Once activated, the limit switch 4 sends a limit signal, and the adjustment mechanism 2 stops moving or rebounds according to the limit signal, preventing further movement of seat 1. This prevents overheating of the adjustment mechanism 2, avoiding potential damage to its internal components, and even preventing fire or other unknown risks.

[0027] When the adjustment mechanism 2 stops moving according to the limit signal, the seat 1 will not interfere with the limit switch 4 further. When the adjustment mechanism 2 rebounds and moves according to the limit signal, the seat 1 separates from the limit switch 4, the seat 1 no longer presses the limit switch 4, and the limit switch 4 returns to its initial state for future use. Both of these movement methods of the adjustment mechanism 2 after the seat 1 presses the limit switch 4 can prevent the adjustment mechanism 2 from being damaged or otherwise damaged.

[0028] In one embodiment, the interference positions between the seat 1 and the interior panel 3 in all postures are marked, and at least two extreme positions are identified, see reference. Figure 3 As shown, the interference region includes the surface of the interior panel 3 between at least two of the extreme positions.

[0029] Specifically, the interference region is the optimal location region determined through location review. The method for reviewing the interference region is as follows: Figure 3 As shown, all postures of seat 1 are analyzed to obtain the interference positions of all postures, and at least two extreme positions A1-A2 are marked. A CAS surface is made on the interior panel 3 between the two extreme positions A1-A2, and a partition shape of the guard plate that engages with the limit switch 4 is made. Then, the structure A surface of the limit switch 4 is determined.

[0030] The CAS surface is mainly used in the feasibility study stage for verification of regulatory requirements, design, engineering, manufacturing, after-sales maintenance, and insurance services, as well as for the creation of small-scale clay models. The A surface is an A-grade surface, which is a high-quality surface.

[0031] In one embodiment, the seat 1 includes a seat back 11, which is in surface-to-surface contact with the limit switch 4.

[0032] When seat 1 is adjusted in eight directions, the seat back 11 and interior panel 3 will usually come into surface-to-surface contact.

[0033] In one embodiment, during certain special adjustments, the seat 1 and the interior panel 3 will also have point-to-point contact areas and point-to-surface contact areas, and the interference area will also include point-to-point contact areas and point-to-surface contact areas.

[0034] See Figures 4 to 7 In one embodiment, the limit switch 4 includes a plurality of first micro switches 41, which are distributed in the interference region. When any one of the first micro switches 41 is turned on, the limit switch 4 is turned on.

[0035] Since the seat back 11 and the interference area are in surface-to-surface contact, when the seat back 11 presses a portion of the limit switch 4, any of the first micro switches 41 distributed in that portion of the area will be turned on, or the first micro switch 41 near that portion of the area will be turned on due to the pressing of the seat back 11, and the limit switch 4 will be turned on. The limit switch 4 has high sensitivity.

[0036] like Figures 1 to 6 As shown, in one embodiment, the limit switch 4 includes at least four first micro switches 41, which are distributed at and / or near the four corners of the limit switch 4.

[0037] At least four first microswitches 41 are provided to ensure that the limit switch 4 can be turned on whenever the seat back 11 is in contact with any position of the limit switch 4.

[0038] like Figures 5 to 7 As shown, the limit switch 4 includes a switch inner shell 411, a positioning post 412, a switch base 413, and a switch pressing post 414; one end of the positioning post 412 is connected to the switch base 413, and the other end is connected to the switch inner shell 411, and the positioning post 412 is located in the middle of the switch inner shell 411; the switch pressing post 414 is connected to the switch inner shell 411, close to the outer periphery of the switch inner shell 411, and is correspondingly arranged with the first micro switch 41; the first and second micro switches 415 are connected to the switch base 413, and the switch inner shell 411 moves relative to the switch base 413 so that the corresponding switch pressing post 414 and the first and second micro switches 415 come into contact, and the first micro switch 41 is turned on.

[0039] The inner shell 411 of the limit switch 4 is built into the A-side contour of the arrangement position, or the inner side of the A-side contour.

[0040] like Figure 4 As shown, four first micro switches 41 are arranged at the four corners of a rectangle. The four sides of the rectangle are divided into two major axes 42 and two minor axes 43. The limit switch 4 checks the rotation angle of the two major axes 42 and the two minor axes 43 to determine the maximum stroke of the final switch, and selects the first micro switch 41 product that meets the specifications based on the maximum stroke.

[0041] The review methodology can be found in the following description, and also in [reference needed]. Figures 4 to 7 As shown: When seat 1 presses the limit switch 4, the inner shell 411 of the switch rotates, and the inner shell 411 moves relative to the switch base 413, causing the corresponding switch pressure post 414 to contact the first and second micro switches 415. The first micro switch 41 is turned on, and the limit switch 4 is turned on. The rotation axis of the seat limit system is as follows: Figure 4 As shown, it includes two major axes 42 and two minor axes 43. Figure 5 and Figure 6 As shown, when the long axis rotates by the first angle, the inner shell 411 of the switch moves downward by 'a'. The on-stroke of the micro switch is a1, and the over-stroke of the limit switch 4 is a2, ensuring that the limit switch 4 is on. Figure 7 As shown, when the short axis rotates by a second angle, the inner shell 411 of the switch moves downward by b. The on-stroke of the micro switch is b1, and the over-stroke of the limit switch 4 is b2, ensuring that the limit switch 4 is on. Using the above method, the maximum stroke of the limit switch 4 is determined, as is the on-stroke of the first micro switch 41. After the stroke specifications of the first micro switch 41 are also determined using this method, relevant products that meet the specifications are selected.

[0042] The working principle diagram of limit switch 4 is as follows: Figure 4 and Figure 8 As shown, when the seat backrest 11 triggers the first microswitch 41 in any position, a limit signal will be sent by the limit switch and routed to the gateway module 5 via LIN. The gateway module 5 collects the limit signal and transmits it to the seat adjustment mechanism to realize limit actions such as stopping the rearward adjustment of the seat 1 and the backrest rebound.

[0043] In one embodiment, the seat limiting system further includes a controller connected to the limit switch 4 and the adjusting mechanism 2. The controller is used to receive signals from the limit switch 4 and control the operation of the adjusting mechanism.

[0044] In one embodiment, the controller includes a gateway module 5, which is communicatively connected to the limit switch 4 and the adjustment mechanism 2.

[0045] In this embodiment, the gateway module 5 is selected to communicate with the limit switch 4 and the adjustment mechanism 2. Alternatively, other control modules can be selected to communicate with the limit switch 4 and the adjustment mechanism 2.

[0046] In one embodiment, the gateway module 5 is arranged under the carpet of the front seat. The gateway module 5 receives the limit signal fed back by the limit switch 4. The function of controlling the action of the adjustment mechanism 2 is embedded in the gateway module 5. The function of the gateway module 5 is not limited to controlling the adjustment mechanism 2, and may also have other important functions.

[0047] In one embodiment, the seat limiting system further includes an adjustment switch, which is communicatively connected to the adjustment mechanism 2. The adjustment switch is used to send an adjustment signal, and the adjustment mechanism 2 adjusts the position of the seat 1 according to the adjustment signal.

[0048] The second-row seat adjustment switches are the same as the front seat adjustment switches. Depending on the design, operating preferences, and available space, the adjustment switches can be placed on the second-row door panel, the second-row center armrest, or on the side of the seat cushion.

[0049] In one embodiment, the adjustment mechanism 2 includes a motor.

[0050] By providing position feedback for seat 1, i.e., when the limit switch 4 is pressed during the movement of seat 1, the adjustment mechanism 2 stops moving or rebounds, which can avoid the possibility of the motor overheating and being damaged, and can also avoid causing fire and other unknown risks.

[0051] In one embodiment, the adjustment mechanism 2, limit switch 4, adjustment switch, and gateway module 5 are arranged reasonably according to usage requirements, such as considering the reasonable arrangement of specifications and parameters like power distribution. The adjustment mechanism 2, limit switch 4, adjustment switch, and gateway module 5 are connected by wiring harnesses, with reasonable wiring routing and appropriate connectors selected to achieve closed-loop normal operation of the entire seat limiting system.

[0052] In one embodiment, the interference region includes the rear side interior panel and the rear side wheel arch 6.

[0053] When adjusting the position of the second-row and third-row seats, there is a possibility of interference with the rear side interior panel and the rear side wheel cover 6. The interference area, including the rear side interior panel and the rear side wheel cover 6, can more effectively and comprehensively protect the adjustment mechanism 2.

[0054] The limiting strategy of the seat limiting system is as follows: When the adjusting mechanism 2 adjusts the movement of the seat 1, after the seat 1 triggers the limit switch 4, the gateway module 5 sends a stop command and then issues a reverse movement control command. At this time, if the seat 1 continues to be adjusted by the adjusting mechanism 2, even if the limit switch 4 is reset, a stop movement command is still sent until the adjusting mechanism 2 stops moving. Upon readjustment, the system responds according to the above logic.

[0055] The seat limiting system addresses the adjustment needs of independent rear seats, such as second-row seats, and avoids the unknown risks caused by reverse motor stalling due to spatial interference. It also mitigates dangers from improper passenger operation, improving passenger comfort and safety. Furthermore, limit switches 4 are installed in areas of low-perceived interference, with their control strategy integrated into the vehicle's gateway module 5. This functional strategy development is economical, cost-effective, and relatively stable, offering advantages such as reliable, stable, and safe implementation.

[0056] An embodiment of this application also discloses a vehicle including the seat limiting system described above.

[0057] Because seat limit systems have advantages such as long service life and enhanced safety, they also make vehicles safer.

[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A seat limiting system, characterized in that, It includes a seat (1), an adjustment mechanism (2), an interior panel (3), and a limit switch (4). The seat (1) is connected to the adjustment mechanism (2), and the adjustment mechanism (2) is used to adjust the position of the seat (1). The interior panel (3) includes an interference area that interferes with the seat (1) during movement. The limit switch (4) is located in the interference area. The limit switch (4) is communicatively connected to the adjustment mechanism (2). When the seat (1) moves, the limit switch (4) is pressed. After the limit switch (4) is turned on, it sends a limit signal. The adjustment mechanism (2) stops moving or rebounds according to the limit signal. The seat (1) includes a seat back (11), which is in surface-to-surface contact with the limit switch (4); The limit switch (4) includes a plurality of first micro switches (41), which are distributed in the interference region. When any one of the first micro switches (41) is turned on, the limit switch (4) is turned on. The limit switch (4) includes a switch inner shell (411), a positioning post (412), a switch base (413), and a switch pressure post (414); one end of the positioning post (412) is connected to the switch base (413), and the other end is connected to the switch inner shell (411), and the positioning post (412) is located in the middle of the switch inner shell (411); the switch pressure post (414) is connected to the switch inner shell (411), close to the outer periphery of the switch inner shell (411), and is correspondingly arranged with the first micro switch (41); the second micro switch (415) is connected to the switch base (413), and the switch inner shell (411) moves relative to the switch base (413) to make the corresponding switch pressure post (414) and the second micro switch (415) contact each other, and the first micro switch (41) is turned on; The inner shell (411) of the limit switch (4) is built into the A-side contour of the arrangement position, or the inner side of the A-side contour.

2. The seat limiting system according to claim 1, characterized in that, Analyze the interference positions of all postures of the seat (1) with the interior panel (3) and mark at least two extreme positions, the interference area including the surface of the interior panel (3) between at least two extreme positions.

3. The seat limiting system according to claim 1, characterized in that, The limit switch (4) includes at least four first micro switches (41), which are distributed at or near the four corners of the limit switch (4).

4. The seat limiting system according to claim 1, characterized in that, It also includes a controller, which is connected to the limit switch (4) and the adjustment mechanism (2). The controller is used to receive the signal sent by the limit switch (4) and control the action of the adjustment mechanism (2).

5. The seat limiting system according to claim 4, characterized in that, The controller includes a gateway module (5), which is communicatively connected to the limit switch (4) and the adjustment mechanism (2).

6. The seat limiting system according to claim 1, characterized in that, The adjustment mechanism (2) includes a motor.

7. A vehicle, characterized in that, The seat limiting system includes any one of claims 1-6.

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