Automobile seat with pressure-sensitive foot pedal and method for deploying and retracting the foot pedal

Abstract

The application relates to the technical field of automobile seats, and discloses an automobile seat with a pressure-sensing foot pedal and a foot pedal unfolding and folding method. The automobile seat comprises a seat body, a foot pedal, a pressure sensor, a driving motor and a transmission mechanism. The foot pedal has a folding position and an unfolding position on the back side of the seat body. The pressure sensor is arranged on the foot pedal or in the foot pedal. The driving motor is arranged on the seat body, the transmission mechanism is connected between the foot pedal and the driving motor, the driving motor can drive the foot pedal to switch between the folding position and the unfolding position through the transmission mechanism, and the control module is electrically connected or communicatively connected with the pressure sensor and the driving motor. When the foot pedal is in the folding position and the pressure sensor is subjected to pressure reaching a preset value, the control module can control the driving motor to switch the foot pedal to the unfolding position. The automobile seat has the advantages that the folding and unfolding of the foot pedal do not need switch control, the foot pedal can be unfolded through one-key response, and automatic folding can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to an automobile seat with a pressure-sensitive footboard and a footboard unfolding and folding method. BACKGROUND

[0002] In order to improve the comfort of rear passengers, a footboard is arranged on the back side of the front seat for the rear passengers to put their feet on.

[0003] The footboard on the back side of the automobile seat is generally foldable, and is folded on the back side of the seat when not in use, and is unfolded downward from the back side of the seat when in use. The unfolding and folding of the existing footboard on the back side of the automobile seat is mostly switch type and voice control type, that is, the footboard is controlled to be unfolded or folded through a switch or through human-computer interaction voice. The switch type needs to be controlled by pressing the switch, which is complicated to operate. The voice control type is prone to misunfolding or misfolding. SUMMARY

[0004] In view of the above problems in the prior art, the technical problem to be solved by the present application is to provide an automobile seat with a pressure-sensitive footboard, which does not need a switch to control unfolding and folding, and can be automatically folded when unfolded by one-key response.

[0005] The technical solution adopted by the present application to solve the technical problem is to provide an automobile seat with a pressure-sensitive footboard, which comprises:

[0006] a seat body;

[0007] a footboard movably arranged on the back side of the seat body, and the footboard has a folding position and an unfolding position on the back side of the seat body, when the footboard is in the folding position, the footboard is attached to the seat body; when the footboard moves from the folding position to the unfolding position, the footboard rotates downward relative to the seat body; a pressure sensor is arranged on or in the footboard;

[0008] a drive motor and a transmission mechanism, the drive motor is arranged on the seat body, the transmission mechanism connects the footboard and the drive motor, and the drive motor can switch the footboard between the folding position and the unfolding position through the transmission mechanism;

[0009] a control module electrically connected or communicatively connected to the pressure sensor and the drive motor, when the footboard is in the folding position and the pressure sensor is subjected to a pressure reaching a preset value, the control module can control the drive motor to switch the footboard to the unfolding position.

[0010] Further, one side of the footboard close to the seat body is a front side, and the other side of the footboard away from the seat body is a back side, and the pressure sensor is arranged close to the front side of the footboard or close to the back side of the footboard.

[0011] Further, when the user kicks or presses the back side of the footboard with the foot to reach a preset pressure, the control module can control the driving motor to switch the footboard to the unfolded position.

[0012] Further, the pressure sensor is a thin-film pressure sensor, a capacitive pressure sensor and / or a piezoelectric pressure sensor.

[0013] Further, when the footboard is in the unfolded position and the pressure sensor is not pressed for a preset time, the control module can control the driving motor to switch the footboard to the folded position.

[0014] Further, when the footboard is in the unfolded position, the user can kick or press the footboard to make the controller control the driving motor to drive the footboard to switch to the folded position.

[0015] Further, the footboard is rotatably installed on the seat body through a rotating shaft, and a crank is arranged on the footboard, and the footboard is connected to the rotating shaft through the crank.

[0016] The transmission mechanism comprises a gear and a rack, the gear is sleeved on the output shaft of the driving motor, the rack is engaged with the gear, and the rack is connected to the crank through a connecting piece.

[0017] Further, a limiting roller is arranged on the back side of the rack along the seat body, and the limiting roller is movably abutted with the rack.

[0018] The crank and the seat body are further provided with a first connecting rod support and a second connecting rod support which are hingedly connected to each other, the first connecting rod support is hingedly connected to the crank, the second connecting rod support is hingedly connected to the seat body, and a torsional spring is arranged between the first connecting rod support and the second connecting rod support.

[0019] The technical solution adopted by the present application to solve the technical problems is also proposed a method for unfolding and folding a footboard, applied to the automobile seat with the pressure-sensitive footboard, the unfolding and folding method comprises:

[0020] The user kicks / presses the back side of the footboard;

[0021] The pressure sensor transmits the pressure signal of the footboard to the control module;

[0022] The control module acquires the pressure signal from the pressure sensor and controls the drive motor to rotate. The drive motor then switches the foot pedal to the unfolded position via the transmission mechanism.

[0023] The pressure sensor is not subjected to pressure for a preset duration, or the user kicks / presses the back of the foot pedal.

[0024] The control module acquires the pressure signal from the pressure sensor and controls the drive motor to rotate. The drive motor then switches the foot pedal to the folded position via the transmission mechanism.

[0025] Furthermore, when the foot pedal switches from the folded position to the unfolded position, and when it switches from the unfolded position to the folded position, it includes a slow start phase, a steady-state movement phase, and a slow stop phase.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] In this invention, a pressure sensor is installed on or within the foot pedal. When the foot pedal needs to be extended, the user can kick / press it. When the pressure sensor detects the pressure, it transmits a pressure signal to the control module. The control module then controls the drive motor to operate, causing the drive motor to open the foot pedal to the extended position via a transmission mechanism. When the foot pedal needs to be folded, the user can extend their foot to the back of the foot pedal and kick / press it. When the pressure sensor detects the pressure, or when no pressure is applied to the pressure sensor for a certain period, the control module receives the signal transmitted by the pressure sensor and controls the drive motor to operate, causing the drive motor to fold the foot pedal to the folded position via a transmission mechanism. The foot pedal of this car seat does not require a switch to extend; it can be activated with a single button. When folding, the user can kick / press the foot pedal to fold it, or the foot pedal will automatically fold after the pressure sensor has been depressed for a certain period. Folding the foot pedal also does not require a switch, making it more convenient and intelligent. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the foot pedal of the present invention when it is in the folded position on the back side of the seat body;

[0029] Figure 2 for Figure 1 A structural diagram showing the seat body after the foam and upholstery have been removed.

[0030] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0031] Figure 4This is a structural diagram showing the foot pedal in the unfolded position on the back of the seat body.

[0032] Figure 5 for Figure 4 A structural diagram showing the seat body after the foam and upholstery have been removed.

[0033] Figure 6 A sequence diagram of the action of unfolding the foot pedal;

[0034] Figure 7 A sequence diagram of the action of retracting the foot pedal;

[0035] Figure 8 Another sequence diagram for the deployment of the foot pedal;

[0036] Figure 9 This is a sequence diagram of another action for retracting the foot pedal.

[0037] In the picture:

[0038] 1. Seat body; 10. Rotary shaft; 11. Limiting rollers;

[0039] 2. Foot pedal; 20. Pressure sensor area; 21. Crank;

[0040] 3. Drive motor;

[0041] 4. Transmission mechanism; 41. Gear; 42. Rack;

[0042] 5. First connecting rod support; 56. Torsion spring;

[0043] 6. Second link support. DETAILED DESCRIPTION

[0044] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0046] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention. Example 1

[0049] like Figures 1-5 As shown, a car seat with a pressure-sensitive foot pedal mainly includes: a seat body 1, a foot pedal 2, a drive motor 3, a transmission mechanism 4, and a control module (i.e., a controller).

[0050] The footrest 2 is movably mounted on the back side of the seat body 1. This footrest 2 is designed to allow passengers behind the seat to rest their feet, hence its placement on the back side of the seat body 1. The seat body 1 mainly comprises a frame, foam, and upholstery. The footrest 2 has a folded position and an unfolded position on the back side of the seat body 1. When the footrest 2 is in the folded position, it rests against the seat body 1 to save space. When the footrest 2 moves from the folded position to the unfolded position, it rotates downwards relative to the seat body 1.

[0051] A pressure sensor is provided on or in the foot pedal 2. Figure 1 and Figure 4The diagram illustrates the pressure sensor arrangement area 20, where the side of the foot pedal 2 closest to the seat body 1 is the front, and the side of the foot pedal 2 furthest from the seat body 1 is the back. The pressure sensor is arranged either near the front or the back of the foot pedal 2. Specifically, the type of pressure sensor can be selected according to actual needs, such as a thin-film pressure sensor, a capacitive pressure sensor, or a piezoelectric pressure sensor.

[0052] The system includes a drive motor 3 and a transmission mechanism 4. The drive motor 3 is mounted on the seat body 1, and the transmission mechanism 4 connects the foot pedal 2 and the drive motor 3. The drive motor 3 can drive the foot pedal 2 to switch between a folded position and an unfolded position via the transmission mechanism 4. The main function of the transmission mechanism 4 is to convert the rotation of the drive motor 3 into the rotation of the foot pedal 2. The transmission mechanism 4 can be implemented in various ways. In this embodiment, a gear 41 and rack 42 configuration is used as the implementation method of the transmission mechanism 4.

[0053] Specifically, the foot pedal 2 is rotatably mounted on the seat body 1 via a rotating shaft 10. The foot pedal 2 has a crank 21, which connects to the rotating shaft 10. The transmission mechanism 4 includes a gear 41 and a rack 42. The gear 41 is mounted on the output shaft of the drive motor 3, and the rack 42 meshes with the gear 41. The rack 42 is connected to the crank 21 via a connecting member. During operation, the drive motor 3 rotates, causing the gear 41 on its output shaft to rotate. The gear 41 meshes with the rack 42, causing the rack 42 to move. One end of the rack 42 is connected to the crank 21 via a connecting member (connecting shaft), and the connection position of the connecting member is offset from the rotating shaft 10 (i.e., offset from the rotation center). This causes the crank 21 to rotate along the center of the rotating shaft 10, causing the foot pedal 2 to rotate. The foot pedal 2 switches between a folded position and an unfolded position. The foot pedal 2 can be suspended at any position between the folded and unfolded positions; these folded and unfolded positions are the two extreme positions of the foot pedal 2's movement. A torsion spring is also fitted on the rotating shaft. One torsion arm of the torsion spring abuts against the seat body 1, and the other torsion arm of the torsion spring abuts against the foot pedal 2, so that the passenger feels comfortable when stepping on the foot pedal 2.

[0054] More specifically, a limiting roller 11 is provided on the back side of the rack 42 along the seat body 1, and the limiting roller 11 moves against the rack 42. This limiting roller 11 can limit the rack 42 to prevent disengagement while allowing the rack 42 to move smoothly. The back side of the rack 42 is curved rather than flat, ensuring smooth movement of the rack 42. Because the rack 42 moves non-linearly, it prevents movement interference. In actual use, the transmission mechanism 4 consists of a gear 41 and a rack 42, occupying little space overall, making the structure more compact and leaving more space for the installation of surrounding parts in the seat body. Compared to methods using gooseneck connecting rods, crank-connecting rods, or gear sets, this drive motor 3 and transmission structure occupy less space, making it applicable to a wider range of vehicle models. Both the rack 42 and the drive motor 3 can be arranged along the height direction of the seat body 1, making full use of the space in the height direction of the seat body 1.

[0055] A limiting shaft is provided on the upper edge of the seat body 1 near the tooth side of the rack 42, and a guide surface is provided on the side of the rack 42 near the limiting shaft. When the rack 42 drives the foot pedal 2 to switch between the folded and unfolded positions, the guide surface and the limiting shaft move against each other. The front and rear sides of the rack 42 are limited and slidably matched by the limiting shaft and the limiting roller 11, respectively, to ensure the reliable movement of the rack 42 and to prevent jamming. This ensures that the foot pedal 2 moves reliably and has high structural stability during unfolding and folding movements.

[0056] Preferably, a first connecting rod bracket 5 and a second connecting rod bracket 6 are provided between the crank 21 and the seat body 1, and the first connecting rod bracket 5 is hinged to the crank 21, the second connecting rod bracket 6 is hinged to the seat body 1, and a torsion spring 56 is provided between the first connecting rod bracket 5 and the second connecting rod bracket 6. The arrangement of the first connecting rod bracket 5 and the second connecting rod bracket 6 can ensure the structural stability of the foot pedal 2 when switching between the folded position and the unfolded position. The foot pedal is held in place by the first connecting rod bracket 5 and the second connecting rod bracket 6, and the first connecting rod bracket 5 and the second connecting rod bracket 6 can also rotate, without interfering with the folding and unfolding of the foot pedal 2.

[0057] In this embodiment, the control module (not shown in the figure) is electrically or communicatively connected to the pressure sensor and the drive motor 3, and signals are transmitted between the control module, the pressure sensor, and the drive motor 3. When the foot pedal 2 is in the folded position and the pressure sensor receives pressure reaching a preset value, the control module can control the drive motor 3 to switch the foot pedal 2 to the unfolded position. The value of this preset value can be selected according to actual needs, and setting this preset value can prevent the foot pedal 2 from being accidentally opened.

[0058] In actual use, when the user kicks or presses the back of the foot pedal 2 to reach a preset pressure value, the control module can control the drive motor 3 to switch the foot pedal 2 to the unfolded position. This is the unfolding method of the foot pedal 2. One way to fold the foot pedal 2 is as follows: when the foot pedal 2 is in the unfolded position, the user can kick or press the foot pedal 2, causing the controller to control the drive motor 3 to switch the foot pedal 2 to the folded position. Alternatively, the folding of the foot pedal 2 can also be achieved in another way: when the foot pedal 2 is in the unfolded position and the pressure sensor is not under pressure for a preset time, the control module can control the drive motor 3 to switch the foot pedal 2 to the folded position. This time can be, but is not limited to, 1 to 30 seconds.

[0059] In this embodiment, a pressure sensor is installed on or within the foot pedal 2. When the foot pedal 2 needs to be unfolded, the user can kick / press it. When the pressure sensor detects the pressure, it transmits the pressure signal to the control module. The control module then controls the drive motor 3 to operate, causing the drive motor 3 to open the foot pedal 2 to the unfolded position via the transmission mechanism 4. When the foot pedal 2 needs to be folded, the user can extend their foot to the back of the foot pedal and kick / press it. When the pressure sensor detects the pressure or when no pressure is applied to the pressure sensor for a certain period, the control module obtains the signal transmitted by the pressure sensor and controls the drive motor 3 to operate, causing the drive motor 3 to fold the foot pedal 2 to the folded position via the transmission mechanism 4. The foot pedal 2 of this car seat does not require a switch to unfold; it can be activated with a single button. When folding, the user can kick / press the foot pedal 2 to fold it, or the foot pedal 2 will automatically fold after the pressure sensor has been depressed for a certain period. Folding the foot pedal 2 also does not require a switch, making it more convenient and intelligent. Example 2

[0060] like Figures 1-5 And combined with the specific control timing of foot pedal 2 Figures 6-9 As shown, a method for unfolding and retracting a foot pedal is applied to a car seat with a pressure-sensitive foot pedal in Embodiment 1. The method includes an unfolding method and a folding method, namely the unfolding principle of the foot pedal 2 and the folding principle of the foot pedal 2.

[0061] The collection and dismantling method includes the following steps:

[0062] The back of the user's foot-kick / foot-press foot pedal 2;

[0063] The pressure sensor transmits the pressure signal from foot pedal 2 to the control module;

[0064] The control module acquires the pressure signal from the pressure sensor and controls the drive motor 3 to rotate. The drive motor 3 switches the foot pedal 2 to the unfolded position through the transmission mechanism 4.

[0065] The pressure sensor is not subjected to pressure for a preset duration, or the user kicks / presses the back of the foot pedal 2;

[0066] The control module acquires the pressure signal from the pressure sensor and controls the drive motor 3 to rotate. The drive motor 3 switches the foot pedal 2 to the folded position through the transmission mechanism 4.

[0067] Prior to this, the switching of pedal 2 from the folded position to the unfolded position, and from the unfolded position to the folded position, both include a slow start phase, a steady-state movement phase, and a slow stop phase. These are explained in detail below:

[0068] like Figure 6 As shown, the user can open foot pedal 2 by kicking / pressing it. The opening logic is as follows:

[0069] After receiving the signal from the pressure sensor (pressure value exceeding Fmin, duration exceeding t1), the controller determines that it has received a foot pedal open signal;

[0070] The controller outputs voltage from t1 to t4 to drive motor 3 to open foot pedal 2;

[0071] During the soft start phase, t1 to t2 is the phase where the controller outputs a modulated voltage in PWM form. After (t2-t1) seconds, the voltage rises from U1 to U2, and then the controller operates in steady state until t3.

[0072] During the slow stop phase, t3 to t4 is the phase where the controller outputs modulated voltage in PWM form. After (t4-t3) seconds, the voltage drops from U2 to U1 and the operation stops.

[0073] When the t4 foot pedal reaches its position, the controller stops outputting voltage.

[0074] Its Fmin, t1, t2, t3, t4, U1, and U2 can be adjusted according to the actual debugging results.

[0075] like Figure 7 As shown, the folding logic of foot pedal 2 in this scheme is as follows:

[0076] After T1, the controller no longer receives a signal from the pressure sensor. After (T2-T1) seconds, the controller still does not receive a signal from the pressure sensor. The controller determines that the person's foot has left the pedal and needs to be retracted.

[0077] The controller outputs voltage from T2 to T5 to drive motor 3 to retract foot pedal 2;

[0078] T2 to T3 is the soft start phase, during which the controller outputs modulated voltage in PWM form. After (T3-T2) seconds, the voltage rises from U3 to U4, and then it operates in steady state until T4.

[0079] During the slow stop phase, T4 to T5 is the phase where the controller outputs a modulated voltage in PWM form. After (T5-T4) seconds, the voltage drops from U4 to U3 and the operation stops.

[0080] When the T5 foot pedal reaches the operating position, the controller stops outputting voltage.

[0081] Its Fmin, T1, T2, T3, T4, T5, U3, and U4 can be adjusted according to the actual debugging results.

[0082] This solution can automatically fold the foot pedal 2.

[0083] like Figure 8 As shown, the user can open foot pedal 2 by kicking / pressing it. Another opening logic is as follows:

[0084] After receiving the signal from the pressure sensor (pressure value exceeding Fmin, duration exceeding t1), the controller determines that it has received a foot pedal open signal;

[0085] The controller outputs voltage from t1 to t4 to drive motor 3 to open foot pedal 2;

[0086] During the soft start phase, t1 to t2 is the phase where the controller outputs a modulated voltage in PWM form. After (t2-t1) seconds, the voltage rises from U1 to U2, and then the controller operates in steady state until t3.

[0087] During the slow stop phase, t3 to t4 is the phase where the controller outputs modulated voltage in PWM form. After (t4-t3) seconds, the voltage drops from U2 to U1 and the operation stops.

[0088] When the t4 foot pedal reaches its position, the controller stops outputting voltage.

[0089] The values ​​Fmin, t1, t2, t3, t4, U1, and U2 can be adjusted based on the actual debugging results.

[0090] like Figure 9 As shown, this scheme retracts the foot pedal 2 by kicking / pressing it. The retraction logic is as follows:

[0091] After receiving the signal from the pressure sensor (pressure value exceeding Fmin, duration exceeding T1), the controller determines that it has received a foot pedal off signal;

[0092] The controller outputs voltage from T1 to T4 to drive motor 3 to turn off foot pedal 2;

[0093] During the T1 to T2 phase, the controller outputs a modulated voltage in PWM form. After (T2-T1) seconds, the voltage rises from U3 to U4, and then the controller operates in steady state until T3.

[0094] During the slow stop phase, T3 to T4 is the phase where the controller outputs a modulated voltage in PWM form. After (T4-T3) seconds, the voltage drops from U4 to U3 and the operation stops.

[0095] When the T4 foot pedal reaches its position, the controller stops outputting voltage.

[0096] The values ​​Fmin, T1, T2, T3, T4, U3, and U4 can be adjusted based on the actual debugging results.

[0097] In this design, the footrest in the car seat does not require a switch to retract or extend, and it can be activated with a single button, enabling automatic folding. Furthermore, the drive motor 3 and transmission mechanism 4 used to drive the footrest occupy minimal space, making it compatible with a wide range of car models.

Claims

1. A car seat with a pressure-sensitive foot pedal, characterized in that, Including: Seat body; A foot pedal is movably disposed on the back side of the seat body, and the foot pedal has a folded position and an unfolded position on the back side of the seat body. When the foot pedal is in the folded position, the foot pedal is against the seat body; when the foot pedal moves from the folded position to the unfolded position, the foot pedal rotates downward relative to the seat body; a pressure sensor is provided on or in the foot pedal. The system includes a drive motor and a transmission mechanism. The drive motor is mounted on the seat body, and the transmission mechanism connects the foot pedal and the drive motor. The drive motor can drive the foot pedal to switch between the folded position and the unfolded position through the transmission mechanism. The control module is electrically or communicatively connected to the pressure sensor and the drive motor. When the foot pedal is in the folded position and the pressure sensor receives pressure reaching a preset value, the control module can control the drive motor to switch the foot pedal to the unfolded position. The foot pedal is rotatably mounted on the seat body via a pivot, and the foot pedal is provided with a crank, which is connected to the pivot. The transmission mechanism includes a gear and a rack. The gear is sleeved on the output shaft of the drive motor, the rack meshes with the gear, and the rack is connected to the crank through a connector. The seat body has a limiting roller along the back side of the rack, and the limiting roller moves against the rack. The back side of the rack has a curved surface, and the rack moves in a non-linear manner. Both the rack and the drive motor are arranged along the height direction of the seat body to make full use of the space in the height direction of the seat body. The seat body has a limiting shaft along the side of the rack near the teeth, and the rack has a guide surface near the limiting shaft. When the rack drives the foot pedal to switch between the folded position and the unfolded position, the guide surface moves against the limiting shaft. A first connecting rod bracket and a second connecting rod bracket are also provided between the crank and the seat body, and the first connecting rod bracket is hinged to the crank, the second connecting rod bracket is hinged to the seat body, and a torsion spring is provided between the first connecting rod bracket and the second connecting rod bracket.

2. The car seat with pressure-sensitive foot pedal according to claim 1, characterized in that, The side of the foot pedal closest to the seat body is the front, and the side of the foot pedal away from the seat body is the back. The pressure sensor is arranged either close to the front or close to the back of the foot pedal.

3. The car seat with pressure-sensitive foot pedal according to claim 1 or 2, characterized in that, When the user kicks or presses the back of the foot pedal to a preset pressure value, the control module can control the drive motor to switch the foot pedal to the unfolded position.

4. The car seat with pressure-sensitive foot pedal according to claim 1, characterized in that, The pressure sensor is a thin-film pressure sensor and / or a capacitive pressure sensor and / or a piezoelectric pressure sensor.

5. The car seat with pressure-sensitive foot pedal according to claim 1, characterized in that, When the foot pedal is in the unfolded position and the pressure sensor is not subjected to pressure for a preset time, the control module can control the drive motor to switch the foot pedal to the folded position.

6. The car seat with pressure-sensitive foot pedal according to claim 1, characterized in that, When the foot pedal is in the unfolded position, the user can kick or press the foot pedal to cause the control module to control the drive motor to switch the foot pedal to the folded position.

7. A method for extending and retracting a foot pedal, applied to a car seat with a pressure-sensitive foot pedal as described in any one of claims 1-6, characterized in that, The expansion and recovery method includes: The user kicks / presses the back of the foot pedal; The pressure sensor transmits the pressure signal from the foot pedal to the control module; The control module acquires the pressure signal from the pressure sensor and controls the drive motor to rotate. The drive motor then switches the foot pedal to the unfolded position via the transmission mechanism. The pressure sensor is not subjected to pressure for a preset duration, or the user kicks / presses the back of the foot pedal. The control module acquires the pressure signal from the pressure sensor and controls the drive motor to rotate. The drive motor then switches the foot pedal to the folded position via the transmission mechanism.

8. The method for extending and retracting the foot pedal according to claim 7, characterized in that, When the foot pedal is switched from the folded position to the unfolded position, and when it is switched from the unfolded position to the folded position, it includes a slow start phase, a steady-state movement phase, and a slow stop phase.

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