A control method and device for a zero-gravity seat four-way leg rest

Abstract

This invention relates to a control method and device for a four-way leg rest of a zero-gravity seat, comprising: acquiring a seat leg rest switch signal, identifying the need to adjust the seat leg rest, and collecting a zero-gravity seat position signal; determining an adjustment scenario based on the seat leg rest switch signal or the zero-gravity seat position signal; performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg rest module and the vehicle body crossbeam; and adjusting the seat leg rest based on the identification result. This invention can identify zero-gravity seat position information and intelligently control the four-way leg rest of the zero-gravity seat based on the identified information, avoiding damage to the leg rest due to interference between the leg rest and the vehicle body crossbeam.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, specifically to a control method and device for a zero-gravity four-way leg rest. Background Technology

[0002] As people's demands for in-car comfort increase, a four-way leg rest structure that provides calf support is being used more and more widely in zero-gravity seats. For this four-way leg rest structure, people want it to be able to adjust its length through structural extension and retraction, thereby increasing the leg rest size to support the calf of larger users. They also want the seat to actively recognize the leg rest position during rotation and extension, preventing interference with the seat mounting beams and thus avoiding damage to the leg rest structure.

[0003] Existing technology only considers the structure of the four-way leg rest of the zero-gravity seat itself, without considering the risk of interference between the four-way leg rest and the vehicle body mounting beam due to user misoperation during rotation and extension. Summary of the Invention

[0004] One of the objectives of this invention is to provide a control method and device for a zero-gravity seat four-way leg rest, so as to solve the problem of interference between the existing four-way leg rest and the vehicle body mounting beam under rotation and extension conditions.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A method for controlling a four-way leg rest in a zero-gravity seat includes the following steps:

[0007] Acquire seat leg rest switch signals, identify the need to adjust the seat leg rest, and collect zero-gravity seat position signals;

[0008] The adjustment scenario is determined based on the seat leg rest switch signal or the zero-gravity seat position signal;

[0009] Based on the determined adjustment scenario and the zero-gravity seat position signal, internal calculations are performed to identify the interference relationship between the seat leg support module and the vehicle body crossbeam;

[0010] Adjust the seat leg rest according to the recognition result.

[0011] Based on the aforementioned technical means, since the seat leg rest switch signal and the zero-gravity seat position signal are collected, the current adjustment scenario can be determined based on the collected signals. Then, based on the determined adjustment scenario, internal calculations are performed to identify the interference relationship between the seat leg rest module and the vehicle body crossbeam, thereby realizing intelligent control of the four-way leg rest of the zero-gravity seat and avoiding damage to the leg rest due to interference between the leg rest and the vehicle body crossbeam.

[0012] Furthermore, the step of acquiring the seat leg rest switch signal, identifying the need to adjust the seat leg rest, and collecting the zero-gravity seat position signal includes:

[0013] Obtain the seat leg rest switch signal, and identify the need to adjust the seat leg rest based on the seat leg rest switch signal;

[0014] The zero-gravity seat position signal is obtained by acquiring the position signals of the seat slide rail module, the seat-back linkage module, and the leg rest module.

[0015] Based on the above technical means, since the seat leg rest switch signal is obtained, the need to rotate or extend the seat leg rest can be determined according to the seat leg rest switch signal. Then, based on the obtained seat slide rail module position signal, seat-back linkage module signal and leg rest module signal, the zero-gravity seat position signal can be obtained. These signals can be used to identify the adjustment scenario of the zero-gravity seat and leg rest.

[0016] Furthermore, determining the adjustment scenario based on the seat leg rest switch signal or the zero-gravity seat position signal includes:

[0017] The scenario of rotating the seat leg rest or extending / retracting the seat leg rest is determined based on the seat leg rest switch signal;

[0018] The scenario of adjusting the seat forward and backward or sitting and leaning together is determined based on the zero-gravity seat position signal.

[0019] Based on the above technical means, the adjustment scenarios of the zero-gravity seat and leg rest can be identified by using the seat leg rest switch signal and the zero-gravity seat position signal, realizing the intelligent identification process of the adjustment scenario, so as to perform different internal calculations according to the identified adjustment scenario and determine the interference relationship between the seat leg rest module and the vehicle body crossbeam.

[0020] Furthermore, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam includes:

[0021] When the seat leg rest is rotated, determine whether the seat leg rest adjustment switch signal is a leg rest rotation unfolding signal or a leg rest retraction signal;

[0022] If the signal is the rotation and unfolding signal of the leg rest, it is determined that there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0023] If it is the leg rest retraction signal, determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle based on the signal of the seat-back linkage module.

[0024] If the angle is greater than or equal to the first critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam;

[0025] If it is less than the first critical angle, determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal;

[0026] If the angle is greater than or equal to the second critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam;

[0027] If the angle is less than the second critical angle, it is determined that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0028] Based on the aforementioned technical means, since the scenario of rotating seat leg rests has been identified, it is possible to determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on further leg rest rotation and retraction commands in this adjustment scenario, or to determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on the adjustment amount of the leg rest rotation unfolding angle. This enables detailed analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0029] Furthermore, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam also includes:

[0030] When the seat leg rest is extended or retracted, determine whether the seat leg rest adjustment switch signal is a leg rest extension signal or a leg rest shortening signal;

[0031] If the signal is the shortening of the leg rest, it is determined that there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0032] If it is the leg support extension signal, determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle based on the signal of the seat-back linkage module.

[0033] If the angle is greater than or equal to the first critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam;

[0034] If it is less than the first critical angle, determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal.

[0035] If the angle is greater than or equal to the second critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam;

[0036] If the angle is less than the second critical angle, it is determined that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0037] Based on the aforementioned technical means, since the scenario of retractable seat leg rests has been identified, it is possible to determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on further leg rest extension and shortening commands in this adjustment scenario, or to determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on the adjustment amount of the leg rest rotation unfolding angle. This enables detailed analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0038] Furthermore, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam also includes:

[0039] When adjusting the seat forward and backward or in a coordinated sitting and reclining scenario, determine whether the change in the Hall signal of the leg rest module satisfies the interference condition between the leg rest and the crossbeam.

[0040] If the interference condition between the leg rest and the crossbeam is met, it is determined that there is an interference relationship between the seat leg rest module and the vehicle body crossbeam.

[0041] Based on the aforementioned technical means, since the scenario of adjusting the seat forward and backward or the sitting and leaning linkage is identified, the Hall signal change of the leg support module can be used to determine whether there is an interference relationship between the seat leg support module and the vehicle body crossbeam in this scenario. This enables detailed analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0042] Furthermore, adjusting the seat leg rest based on the recognition result includes:

[0043] When the seat leg rest is rotating, the seat leg rest is controlled to rotate and unfold or retract based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, the seat leg rest is controlled to rotate and retract and the leg rest is shortened to the initial position at the same time.

[0044] When the seat leg rest is extended or retracted, the seat leg rest is controlled to shorten or extend based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, the seat leg rest is simultaneously controlled to extend and rotate to unfold until the adjustment amount reaches the second critical angle.

[0045] When adjusting the seat forward and backward or in a scenario involving seat-back coordination, the seat leg rest is controlled to rotate and unfold to the second critical angle based on the determination result of the interference relationship.

[0046] Based on the aforementioned technical means, by adopting a control method that adapts to different adjustment scenarios and interference relationships, the seat leg rest can be precisely controlled to rotate and unfold or retract, shorten or extend, or rotate and unfold to a specified critical angle. Under the premise of avoiding interference between the seat leg rest module and the vehicle body crossbeam, the zero-gravity seat leg rest is precisely controlled, realizing an intelligent control method for the four-way leg rest of the zero-gravity seat.

[0047] A control device for a zero-gravity seat four-way leg rest includes:

[0048] The signal acquisition module is used to acquire the seat leg rest switch signal, identify the need to adjust the seat leg rest, and collect the zero-gravity seat position signal;

[0049] The scene determination module is used to determine the adjustment scene based on the seat leg rest switch signal or the zero-gravity seat position signal;

[0050] The interference determination module is used to perform internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam.

[0051] An adjustment module is used to adjust the seat leg rest according to the recognition result.

[0052] Furthermore, the signal acquisition module includes:

[0053] A switch signal acquisition unit is used to acquire the seat leg rest switch signal and identify the need to adjust the seat leg rest based on the seat leg rest switch signal.

[0054] The position signal acquisition unit is used to acquire the position signal of the seat slide rail module, the seat-back linkage module signal, and the leg support module signal to obtain the zero-gravity seat position signal.

[0055] Furthermore, the scene determination module includes:

[0056] The leg rest scenario determination unit is used to determine the scenario of rotating the seat leg rest or extending / retracting the seat leg rest based on the seat leg rest switch signal;

[0057] The seat scene determination unit is used to determine the scene of adjusting the seat forward and backward or the sitting and leaning linkage based on the zero gravity seat position signal.

[0058] Furthermore, the interference determination module includes:

[0059] The first signal determination unit is used to determine whether the seat leg rest adjustment switch signal is a leg rest rotation unfolding signal or a leg rest retraction signal when the seat leg rest is rotated.

[0060] The first determination result unit is used to determine that if the signal is the rotation and unfolding signal of the leg rest, there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0061] The second signal judgment unit is used to determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle if the signal is the leg support retraction signal.

[0062] The second determination result unit is used to determine that if the angle is greater than or equal to the first critical angle, there is no interference between the seat leg support module and the vehicle body crossbeam.

[0063] The third signal judgment unit is used to determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal if the angle is less than the first critical angle.

[0064] The third determination result unit is used to determine that if the angle is greater than or equal to the second critical angle, there is no interference between the seat leg support module and the vehicle body crossbeam.

[0065] The fourth determination result unit is used to determine that if the angle is less than the second critical angle, there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0066] Furthermore, the interference determination module also includes:

[0067] The fourth signal determination unit is used to determine whether the seat leg support adjustment switch signal is a leg support extension signal or a leg support shortening signal when the seat leg support is extended or retracted.

[0068] The fifth determination result unit is used to determine that if the signal is the shortening of the leg rest, there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0069] The fifth signal judgment unit is used to determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle if the signal is the leg support extension signal.

[0070] The sixth determination result unit is used to determine that there is no interference between the seat leg support module and the vehicle body crossbeam if the angle is greater than or equal to the first critical angle.

[0071] The sixth signal judgment unit is used to determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal if the angle is less than the first critical angle.

[0072] The seventh determination result unit is used to determine that there is no interference between the seat leg support module and the vehicle body crossbeam if the angle is greater than or equal to the second critical angle.

[0073] The eighth determination result unit is used to determine that if the angle is less than the second critical angle, there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0074] Furthermore, the interference determination module also includes:

[0075] The seventh signal judgment unit is used to determine whether the change of the Hall signal of the leg rest module satisfies the interference condition between the leg rest and the crossbeam when the scenario of adjusting the seat forward or backward or the sitting and leaning linkage is used.

[0076] The ninth determination result unit is used to determine that there is an interference relationship between the seat leg support module and the vehicle body crossbeam if the interference condition between the leg support and the crossbeam is met.

[0077] Furthermore, the adjustment module includes:

[0078] The rotation adjustment unit is used to control the seat leg rest to rotate and unfold or retract when the seat leg rest is rotated, based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, simultaneously control the seat leg rest to rotate and retract and shorten to the initial position.

[0079] The telescopic adjustment unit is used to control the seat leg rest to shorten or extend when the seat leg rest is extended, based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, simultaneously control the seat leg rest to extend and the leg rest to rotate and unfold until the adjustment amount reaches the second critical angle.

[0080] The critical angle adjustment unit is used to control the seat leg rest to rotate and unfold to the second critical angle when adjusting the seat forward and backward or in a scenario where the seat is in motion and the backrest is in motion, based on a determination result of an interference relationship.

[0081] A vehicle includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the control method for the four-way leg rest of the zero-gravity seat as described above.

[0082] A computer-readable storage medium storing a computer program that is executed by a processor to implement the control method for the four-way leg rest of the zero-gravity seat as described above.

[0083] The beneficial effects of this invention are:

[0084] (1) The embodiments of the present invention can avoid interference between the four-way leg rest and the vehicle body beam in the event of user misoperation; at the same time, due to the use of the four-way leg rest control method, the length of the leg rest is increased, and the riding comfort is improved.

[0085] (2) The embodiments of the present invention can achieve risk avoidance in all scenarios. Regardless of whether the user adjusts the leg rest or the seat, the interference between the leg rest and the vehicle body beam can be automatically avoided.

[0086] (3) According to the user's adjustment, the leg rest can automatically identify the risk of interference between the leg rest and the vehicle body beam and make corresponding leg rest adjustments, thus realizing an intelligent leg rest control method. Attached Figure Description

[0087] Figure 1 This is a flowchart of the control method for the four-way leg rest of the zero-gravity seat according to the present invention;

[0088] Figure 2 This is a schematic diagram of the interference between the leg support and the crossbeam in the four-way leg support adjustment scenario of the present invention;

[0089] Figure 3 This is a schematic diagram illustrating the interference between the leg rest and the crossbeam in a scenario where the seat is adjusted forward / backward or in a coordinated manner according to the present invention.

[0090] Figure 4 This is a schematic diagram of the control system for the zero-gravity seat four-way leg rest of the present invention;

[0091] Figure 5 This is a schematic diagram of the control principle in the scenario of leg support rotation adjustment according to the present invention;

[0092] Figure 6 This is a schematic diagram illustrating the control principle of the leg support telescopic adjustment scenario of the present invention;

[0093] Figure 7 This is a schematic diagram illustrating the control principle of the present invention in the scenario of coordinated adjustment of the seat forward / backward or reclining position.

[0094] Figure 8 This is a schematic diagram of the critical angles A and B of the present invention;

[0095] Figure 9 This is a schematic diagram of the control device for the four-way leg rest of the zero-gravity seat in one implementation of the present invention;

[0096] Figure 10 This is a structural schematic diagram of the vehicle provided by the present invention. Detailed Implementation

[0097] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0098] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0099] The following describes a control method and apparatus for a zero-gravity seat four-way leg rest according to an embodiment of the present invention, with reference to the accompanying drawings. Addressing the problem mentioned in the background art of interference between existing four-way leg rests and the vehicle body mounting beam under rotation and extension conditions, this embodiment of the present invention provides a control method for a zero-gravity seat four-way leg rest. This method acquires a seat leg rest switch signal, identifies the need to adjust the seat leg rest, and collects a zero-gravity seat position signal; determines an adjustment scenario based on the seat leg rest switch signal or the zero-gravity seat position signal; performs internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg rest module and the vehicle body beam; and adjusts the seat leg rest according to the identification result. Therefore, this embodiment of the present invention can identify zero-gravity seat position information and intelligently control the zero-gravity seat four-way leg rest based on the identified information, avoiding damage to the leg rest due to interference between the leg rest and the vehicle body beam.

[0100] Specifically, Figure 1 This is a flowchart of the control method for the four-way leg rest of the zero-gravity seat according to the present invention.

[0101] like Figure 1 As shown, the control method for the four-way leg rest of the zero-gravity seat includes the following steps:

[0102] In step S100, the seat leg rest switch signal is acquired, the need to adjust the seat leg rest is identified, and the zero-gravity seat position signal is collected.

[0103] It is understood that the embodiments of the present invention utilize a controller to receive seat leg rest switch signals, which can identify the user's need to adjust the leg rest based on the seat leg rest switch signals. Furthermore, the controller receives signals from the zero-gravity seat slide rail module, the seat-back linkage module, and the leg rest module. These signals are used to identify the zero-gravity seat position information, perform internal calculations, and drive the corresponding modules to work, thereby achieving interference-free adjustment of the seat leg rest and avoiding interference damage between the leg rest and the vehicle body crossbeam. This results in a control method for a four-way leg rest of a zero-gravity seat that is simple in construction logic, highly intelligent, and low in cost.

[0104] In one embodiment of the present invention, the adjustable scenarios of the zero-gravity seat and the four-way leg rest include, but are not limited to: the leg rest rotation scenario, the leg rest extension scenario, and the seat forward / backward or seat-back linkage adjustment scenario; wherein, the four-way leg rest rotation scenario and the four-way leg rest extension scenario can be collectively referred to as the four-way leg rest adjustment scenario.

[0105] like Figure 2 As shown, in the four-way leg rest adjustment scenario of this embodiment, the interference between the leg rest and the crossbeam includes, but is not limited to, the following two situations:

[0106] 1) When the leg rest is not shortened, if the user rotates and retracts the leg rest, interference occurs between the leg rest and the vehicle body crossbeam (e.g., Figure 2 (As shown on the left side of the middle section)

[0107] 2) When the leg rest is not rotated and extended, interference occurs between the leg rest and the vehicle body beam when the user extends the leg rest (e.g., ...). Figure 2 (As shown on the right).

[0108] like Figure 3 As shown, in the scenario of coordinated seat adjustment (forward / backward or reclining), the interference between the leg rest and the crossbeam includes, but is not limited to, the following two situations:

[0109] 1) When the leg rest is not shortened or rotated out, if the user adjusts the seat backward, the leg rest will interfere with the vehicle body crossbeam (e.g., Figure 3 (As shown on the left side of the middle section)

[0110] 2) When the leg rest is not shortened or rotated out, if the user adjusts the seat downwards in conjunction with the backrest, the leg rest will interfere with the vehicle's crossbeam (e.g., Figure 3 (As shown on the right).

[0111] like Figure 4 As shown, the control system of the zero-gravity seat four-way leg rest in this embodiment of the invention includes, but is not limited to: seat leg rest adjustment switch 1, controller 2, screen module 3, seat slide rail module 4, sitting and leaning linkage module 5, and seat leg rest module 6.

[0112] In this embodiment of the invention, the controller 2 is connected to the seat leg support adjustment switch 1 via a wiring harness, and receives the seat leg support adjustment switch signal to identify the user's need to adjust the rotation and extension of the seat leg support module; the controller 2 is also connected to the seat slide rail module 4, the seat-back linkage module 5, and the seat leg support module 6 via wiring harnesses respectively, to collect the position information and Hall signal changes of each module, and to identify the adjustment amount of each module.

[0113] In this embodiment of the invention, the controller 2, through internal calculations, identifies whether adjusting the seat and leg rest will cause interference between the leg rest and the vehicle body beam, and outputs an electrical signal to drive the seat slide rail module 4, the seat-back linkage module 5, and the seat leg rest module 6 to adjust to the corresponding positions. Furthermore, the controller 2 outputs a CAN signal to the screen module 3 via the CAN network for screen safety prompts. The seat leg rest adjustment switch 1 can be arranged as a physical button on the seat assembly panel or as a soft switch on the central control screen. For ease of operation, in this embodiment, it is arranged as a physical button on the seat assembly panel. The physical buttons in the seat leg rest adjustment switch 1 include, but are not limited to: a leg rest rotation / expansion button, a leg rest retraction button, a leg rest shortening button, and a leg rest extension button.

[0114] In this embodiment of the invention, the seat slide rail module 4, the seat backrest linkage module 5, and the seat leg rest module 6 are all driven by Hall motors to realize the forward and backward movement of the slide rail, the linkage adjustment of the seat backrest, and the rotation and extension adjustment of the seat leg rest. The Hall motor converts the position signal into a Hall signal and outputs it to the controller 2, which is used by the controller 2 to confirm the position information and Hall signal changes of each module and identify the adjustment amount of each module. The seat leg rest module 6, based on considerations of leg rest length comfort, adopts a four-way leg rest, realizing adjustable leg rest length and increasing the leg rest length to meet the diverse needs of users for lower leg support. The controller 2 can select a seat controller or a vehicle domain controller according to the overall vehicle control architecture.

[0115] In one embodiment of the present invention, the step of acquiring the seat leg rest switch signal, identifying the need to adjust the seat leg rest, and collecting the zero-gravity seat position signal includes: acquiring the seat leg rest switch signal, identifying the need to adjust the seat leg rest based on the seat leg rest switch signal; acquiring the seat slide rail module position signal, the seat-back linkage module signal, and the leg rest module signal to obtain the zero-gravity seat position signal.

[0116] It is understood that, in one of the above embodiments, the seat leg rest switch signals include: leg rest rotation and unfolding signals, leg rest retraction signals, leg rest shortening signals, and leg rest extension signals; the needs for adjusting the seat leg rest include: adjusting the needs for adjusting the leg rest rotation and unfolding, adjusting the needs for adjusting the leg rest retraction, adjusting the needs for adjusting the leg rest shortening, and adjusting the needs for adjusting the leg rest extension; and the zero-gravity seat position signals are position signals obtained by the Hall motors corresponding to the above-mentioned seat slide rail module 4, seat sitting and leaning linkage module 5, and seat leg rest module 6, namely, seat front and rear position signals, sitting and leaning linkage position signals, and seat leg rest position signals.

[0117] In this embodiment of the invention, since the seat leg rest switch signal is obtained, the need to rotate or extend the seat leg rest can be determined based on the seat leg rest switch signal. Then, based on the obtained seat slide rail module position signal, seat-back linkage module signal, and leg rest module signal, the zero-gravity seat position signal can be obtained. These signals can be used to identify the adjustment scenarios of the zero-gravity seat and leg rest.

[0118] like Figure 1 As shown, the control method for the four-way leg rest of the zero-gravity seat includes the following steps:

[0119] In step S200, the adjustment scenario is determined based on the seat leg rest switch signal or the zero-gravity seat position signal.

[0120] It is understood that, in the embodiments of the present invention, the leg support rotation scenario and the leg support extension scenario can be identified based on the seat leg support switch signal, and the seat forward / backward or sitting / reclining linkage adjustment scenario can be identified based on the zero-gravity seat position signal.

[0121] In one embodiment of the present invention, determining the adjustment scenario based on the seat leg rest switch signal or the zero-gravity seat position signal includes: determining a scenario of rotating the seat leg rest or extending / retracting the seat leg rest based on the seat leg rest switch signal; and determining a scenario of adjusting the seat forward / backward or in conjunction with sitting / reclining based on the zero-gravity seat position signal.

[0122] It is understood that, in this embodiment of the invention, different control processes are executed according to different user adjustment scenarios, thereby realizing an intelligent seat leg support adjustment process.

[0123] In this embodiment of the invention, the adjustment scenarios of the zero-gravity seat and leg rest can be identified by using the seat leg rest switch signal and the zero-gravity seat position signal, realizing an intelligent adjustment scenario identification process, so as to perform different internal calculations based on the identified adjustment scenario and determine the interference relationship between the seat leg rest module and the vehicle body crossbeam.

[0124] like Figure 1 As shown, the control method for the four-way leg rest of the zero-gravity seat includes the following steps:

[0125] In step S300, internal calculations are performed based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam.

[0126] It is understood that, in the scenario of leg support rotation adjustment, the embodiments of the present invention first determine whether the received signal is a leg support rotation unfolding signal or a leg support retraction signal, and use the determined signal type to identify whether there is an interference relationship; then, based on the adjustment amount of the sitting and leaning linkage adjustment module, it further identifies whether there is an interference relationship.

[0127] In one embodiment of the present invention, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam includes: when the scenario is rotating the seat leg support, determining whether the seat leg support adjustment switch signal is a leg support rotation unfolding signal or a leg support retraction signal; if it is the leg support rotation unfolding signal, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is the leg support retraction signal, determining whether the adjustment amount of the seat back linkage adjustment module is greater than or equal to a first critical angle based on the seat back linkage module signal; if it is greater than or equal to the first critical angle, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is less than the first critical angle, determining whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to a second critical angle based on the leg support module signal; if it is greater than or equal to the second critical angle, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is less than the second critical angle, determining that there is interference relationship between the seat leg support module and the vehicle body crossbeam.

[0128] It is understandable that the first critical angle is the critical angle A of the seat-back linkage module. This angle is obtained by setting the leg rest rotation to its initial position, setting the leg rest extension to its maximum length, and then adjusting the seat-back linkage module until the leg rest is in zero contact with the vehicle body crossbeam, thereby obtaining the adjustment amount of the seat-back linkage module, which is the critical angle A. Figure 8 As shown, in Figure 8 On the left side, when the adjustment amount of the seat linkage module is ≥A, the zero-gravity seat will not interfere with the vehicle body crossbeam when adjusting the leg rest rotation or extension at any position.

[0129] It is understandable that the second critical angle is the critical angle B for the rotation of the seat leg support module. This angle is obtained by setting the seat-back linkage module to its initial position, setting the leg support extension to its maximum length, and then adjusting the rotation of the seat leg support module until the leg support is in zero contact with the vehicle body crossbeam. This adjustment amount of the seat leg support module rotation is the critical angle B. Figure 8 As shown, in Figure 8On the right side, when the adjustment range of the seat leg support module is ≥B, the zero-gravity seat will not interfere with the vehicle body crossbeam when adjusting the rotation or extension of the leg support in any position.

[0130] Because this invention identifies the scenario of rotating seat leg rests, it can determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on further leg rest rotation and retraction commands in this adjustment scenario, or determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on the adjustment amount of the leg rest rotation unfolding angle. This enables refined analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0131] It is understood that, in the scenario of leg support extension and retraction adjustment, the embodiments of the present invention first determine whether the received signal is a leg support extension signal or a leg support retraction signal, and use the determined signal type to identify whether there is an interference relationship; then, based on the adjustment amount of the sitting and leaning linkage adjustment module, it identifies whether there is an interference relationship.

[0132] In one embodiment of the present invention, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam further includes: when the scenario is the extension and retraction of the seat leg support, determining whether the seat leg support adjustment switch signal is a leg support extension signal or a leg support shortening signal; if it is the leg support shortening signal, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is the leg support extension signal, determining whether the adjustment amount of the seat back linkage adjustment module is greater than or equal to a first critical angle based on the seat back linkage module signal; if it is greater than or equal to the first critical angle, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is less than the first critical angle, determining whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to a second critical angle based on the leg support module signal; if it is greater than or equal to the second critical angle, determining that there is no interference relationship between the seat leg support module and the vehicle body crossbeam; if it is less than the second critical angle, determining that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0133] Because this invention identifies the scenario of the retractable seat leg rest, it can determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on further leg rest extension or shortening commands in this adjustment scenario, or determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam based on the adjustment amount of the leg rest rotation unfolding angle. This enables refined analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0134] It is understood that, in scenarios where the seat is adjusted forward or backward or in a coordinated manner, the embodiments of the present invention directly identify whether there is an interference relationship between the leg rest and the crossbeam based on the changes in the Hall signal of the leg rest module.

[0135] In one embodiment of the present invention, the step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam further includes: when the scenario involves adjusting the seat forward and backward or in conjunction with sitting and leaning, determining whether the change in the Hall signal of the leg support module satisfies the interference condition between the leg support and the crossbeam; if the interference condition between the leg support and the crossbeam is satisfied, determining that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0136] Because this invention identifies scenarios involving adjusting the seat forward and backward or in conjunction with sitting and leaning, it can determine whether there is interference between the seat leg support module and the vehicle body crossbeam by utilizing changes in the Hall signal of the leg support module in such scenarios. This enables refined analysis under different adjustment scenarios and improves the accuracy of interference determination.

[0137] It is understood that, in addition to the above-mentioned scenarios of leg support rotation, leg support extension and retraction, and seat front-to-back or seat-to-back linkage adjustment, the embodiments of the present invention can simulate and predict other scenarios such as simultaneous adjustment based on the motion trajectory to determine whether there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0138] For example, in the scenario where the leg rest rotates and extends simultaneously, the entire motion trajectory of the four sets of situations—simultaneous rotation and extension of the leg rest, retraction and retraction of the leg rest, rotation and extension of the leg rest, and retraction and extension of the leg rest—can be analyzed to determine whether there is an interference relationship between the seat leg rest module and the vehicle body crossbeam.

[0139] like Figure 1 As shown, the control method for the four-way leg rest of the zero-gravity seat includes the following steps:

[0140] In step S400, the seat leg rest is adjusted according to the recognition result.

[0141] It is understood that, in this embodiment of the invention, the seat leg rest is controlled to rotate and / or extend / retract according to different adjustment scenarios and corresponding judgment results in step S300, so as to realize intelligent control of the zero-gravity seat four-way leg rest and avoid damage to the leg rest due to interference between the leg rest and the vehicle body beam.

[0142] In one embodiment of the present invention, adjusting the seat leg rest according to the recognition result includes: when the seat leg rest is rotating, controlling the seat leg rest to rotate and unfold or retract according to the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, controlling the seat leg rest to rotate and retract and shorten to the initial position simultaneously according to the determination result of interference relationship and the seat leg rest adjustment switch signal.

[0143] like Figure 5As shown, in the leg support rotation adjustment scenario of this embodiment of the invention, the following steps are included:

[0144] S41, Begin;

[0145] S42, determine whether the received leg support rotation unfolding signal or retraction signal is received; if it is unfolding, directly execute the adjustment action S46; if it is retraction, proceed to S43.

[0146] S43, determine whether the adjustment amount of the seat-back linkage adjustment module is ≥ the critical angle A; if yes, then directly execute the adjustment action S46; if no, then proceed to S44.

[0147] S44, determine whether the adjustment amount of the leg support rotation angle is ≥ the critical angle B; if yes, then directly execute the adjustment action S46; if no, then proceed to S45.

[0148] S45, synchronously executes control commands to shorten the leg support to the initial position and to rotate and retract the leg support;

[0149] S46, directly executes the adjustment action;

[0150] S47, enter screen security prompt S47;

[0151] S48, End.

[0152] In one embodiment of the present invention, adjusting the seat leg rest according to the recognition result further includes: when the seat leg rest is extended or retracted, controlling the seat leg rest to shorten or extend according to the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, controlling the seat leg rest to extend and the leg rest to rotate and unfold until the adjustment amount reaches the second critical angle according to the determination result of interference relationship and the seat leg rest adjustment switch signal.

[0153] like Figure 6 As shown, in the scenario of leg support telescopic adjustment according to an embodiment of the present invention, the following steps are included:

[0154] S51, Begin;

[0155] S52, determine whether the received leg support extension signal or shortening signal is received; if it is shortening, directly execute the adjustment action S56; if it is extension, proceed to S53.

[0156] S53, determine whether the adjustment amount of the seat-back linkage adjustment module is ≥ the critical angle A; if yes, then directly execute the adjustment action S56; if no, then proceed to S54.

[0157] S54, determine whether the adjustment amount of the leg support rotation angle is ≥ the critical angle B; if yes, then directly execute the adjustment action S56; if no, then proceed to S55.

[0158] S55 synchronously controls the rotation of the leg support, ensuring that the adjustment reaches the critical angle B and executes the leg support extension command;

[0159] S56, directly executes the adjustment action;

[0160] S57, enters screen security prompt;

[0161] S58, End.

[0162] In one embodiment of the present invention, adjusting the seat leg rest according to the recognition result includes: when adjusting the seat forward and backward or sitting and leaning together, controlling the seat leg rest to rotate and unfold to the second critical angle according to the determination result with interference relationship.

[0163] like Figure 7 As shown, in the scenario of coordinated seat adjustment (forward / backward or reclining) according to an embodiment of the present invention, the following steps are included:

[0164] S61, Begin;

[0165] S62, receives Hall signals from the leg support module;

[0166] S63, determine whether the change in Hall signal satisfies the interference condition between the leg support and the crossbeam; if not, end; if yes, proceed to S64.

[0167] S64, the controller identifies interference between the leg support and the crossbeam;

[0168] S65, the controller drives the seat leg rest to rotate and unfold to the critical angle B;

[0169] S66, Screen Security Prompt;

[0170] S67, End.

[0171] 1) In this embodiment of the invention, the risk of interference between the four-way leg rest and the vehicle body beam in case of user misoperation is resolved; at the same time, the four-way leg rest structure can further extend the leg rest length, which is more comfortable than the conventional two-way leg rest structure.

[0172] 2) In this embodiment of the invention, risk avoidance can be achieved in all scenarios, that is, regardless of whether the user adjusts the leg rest or the seat, interference between the leg rest and the vehicle body beam can be automatically avoided.

[0173] 3) In this embodiment of the invention, the zero-gravity four-way leg rest can be adjusted according to the user, automatically identify the risk of interference between the leg rest and the vehicle body beam, and make corresponding adjustments to the leg rest, which has a high degree of intelligence.

[0174] 4) In this embodiment of the invention, the concept of critical angle control is proposed to avoid the need to build a huge database to cope with the complexities of multiple mechanisms and scenarios, thereby reducing the difficulty and cost of development.

[0175] 5) In this embodiment of the invention, the critical angle of the seat-back linkage module is determined first, thereby ensuring the user's needs for the leg rest length to the greatest extent, avoiding the shortening of the leg rest length when the leg rest is rotated and retracted; and avoiding changes in the leg rest angle when the leg rest is extended, which would result in a poor comfort experience.

[0176] This invention provides a control method for a four-way leg rest of a zero-gravity seat. The method acquires a leg rest switch signal, identifies the need to adjust the leg rest, and collects a zero-gravity seat position signal. It then determines an adjustment scenario based on the leg rest switch signal or the zero-gravity seat position signal. Internal calculations are performed based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the leg rest module and the vehicle body crossbeam. The leg rest is adjusted based on the identification result. Therefore, this invention can identify zero-gravity seat position information and intelligently control the four-way leg rest of the zero-gravity seat based on the identified information, avoiding damage to the leg rest due to interference between the leg rest and the vehicle body crossbeam.

[0177] Secondly, the control device for the four-way leg rest of the zero-gravity seat proposed in the embodiments of the present invention will be described with reference to the accompanying drawings.

[0178] Figure 9 This is a schematic diagram of the control device for the zero-gravity seat four-way leg rest according to an embodiment of the present invention, as shown below. Figure 9 As shown, this embodiment also proposes a control device for a zero-gravity seat four-way leg rest, including:

[0179] The signal acquisition module 100 is used to acquire the seat leg rest switch signal, identify the need to adjust the seat leg rest, and collect the zero-gravity seat position signal;

[0180] The scene determination module 200 is used to determine the adjustment scene based on the seat leg rest switch signal or the zero-gravity seat position signal;

[0181] The interference determination module 300 is used to perform internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam.

[0182] The adjustment module 400 is used to adjust the seat leg rest according to the recognition result.

[0183] Optionally, the signal acquisition module 100 includes:

[0184] A switch signal acquisition unit is used to acquire the seat leg rest switch signal and identify the need to adjust the seat leg rest based on the seat leg rest switch signal.

[0185] The position signal acquisition unit is used to acquire the position signal of the seat slide rail module, the seat-back linkage module signal, and the leg support module signal to obtain the zero-gravity seat position signal.

[0186] Optionally, the scene determination module 200 includes:

[0187] The leg rest scenario determination unit is used to determine the scenario of rotating the seat leg rest or extending / retracting the seat leg rest based on the seat leg rest switch signal;

[0188] The seat scene determination unit is used to determine the scene of adjusting the seat forward and backward or the sitting and leaning linkage based on the zero gravity seat position signal.

[0189] Optionally, the interference determination module 300 includes:

[0190] The first signal determination unit is used to determine whether the seat leg rest adjustment switch signal is a leg rest rotation unfolding signal or a leg rest retraction signal when the seat leg rest is rotated.

[0191] The first determination result unit is used to determine that if the signal is the rotation and unfolding signal of the leg rest, there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0192] The second signal judgment unit is used to determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle if the signal is the leg support retraction signal.

[0193] The second determination result unit is used to determine that if the angle is greater than or equal to the first critical angle, there is no interference between the seat leg support module and the vehicle body crossbeam.

[0194] The third signal judgment unit is used to determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal if the angle is less than the first critical angle.

[0195] The third determination result unit is used to determine that if the angle is greater than or equal to the second critical angle, there is no interference between the seat leg support module and the vehicle body crossbeam.

[0196] The fourth determination result unit is used to determine that if the angle is less than the second critical angle, there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0197] Optionally, the interference determination module 300 further includes:

[0198] The fourth signal determination unit is used to determine whether the seat leg support adjustment switch signal is a leg support extension signal or a leg support shortening signal when the seat leg support is extended or retracted.

[0199] The fifth determination result unit is used to determine that if the signal is the shortening of the leg rest, there is no interference between the seat leg rest module and the vehicle body crossbeam;

[0200] The fifth signal judgment unit is used to determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle if the signal is the leg support extension signal.

[0201] The sixth determination result unit is used to determine that there is no interference between the seat leg support module and the vehicle body crossbeam if the angle is greater than or equal to the first critical angle.

[0202] The sixth signal judgment unit is used to determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal if the angle is less than the first critical angle.

[0203] The seventh determination result unit is used to determine that there is no interference between the seat leg support module and the vehicle body crossbeam if the angle is greater than or equal to the second critical angle.

[0204] The eighth determination result unit is used to determine that if the angle is less than the second critical angle, there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

[0205] Optionally, the interference determination module 300 further includes:

[0206] The seventh signal judgment unit is used to determine whether the change of the Hall signal of the leg rest module satisfies the interference condition between the leg rest and the crossbeam when the scenario of adjusting the seat forward or backward or the sitting and leaning linkage is used.

[0207] The ninth determination result unit is used to determine that there is an interference relationship between the seat leg support module and the vehicle body crossbeam if the interference condition between the leg support and the crossbeam is met.

[0208] Optionally, the adjustment module 400 includes:

[0209] The rotation adjustment unit is used to control the seat leg rest to rotate and unfold or retract when the seat leg rest is rotated, based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, simultaneously control the seat leg rest to rotate and retract and shorten to the initial position.

[0210] The telescopic adjustment unit is used to control the seat leg rest to shorten or extend when the seat leg rest is extended, based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, simultaneously control the seat leg rest to extend and the leg rest to rotate and unfold until the adjustment amount reaches the second critical angle.

[0211] The critical angle adjustment unit is used to control the seat leg rest to rotate and unfold to the second critical angle when adjusting the seat forward and backward or in a scenario where the seat is in motion and the backrest is in motion, based on a determination result of an interference relationship.

[0212] It should be noted that the explanation of the control method embodiment for the four-way leg rest of the zero-gravity seat described above also applies to the control device of the four-way leg rest of the zero-gravity seat in this embodiment, and will not be repeated here.

[0213] This invention provides a control device for a four-way leg rest of a zero-gravity seat. This device can acquire a leg rest switch signal to identify the need for adjusting the leg rest and collect a zero-gravity seat position signal. It then determines an adjustment scenario based on the leg rest switch signal or the zero-gravity seat position signal. Based on the determined adjustment scenario and the zero-gravity seat position signal, it performs internal calculations to identify the interference relationship between the leg rest module and the vehicle body crossbeam. Finally, it adjusts the leg rest based on the identification result. Therefore, this invention can identify zero-gravity seat position information and intelligently control the four-way leg rest of the zero-gravity seat based on the identified information, avoiding damage to the leg rest due to interference between the leg rest and the vehicle body crossbeam.

[0214] Figure 10 This is a schematic diagram of a vehicle provided in an embodiment of the present invention. The vehicle may include:

[0215] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0216] When the processor 502 executes the program, it implements the control method for the four-way leg rest of the zero-gravity seat provided in the above embodiments.

[0217] Furthermore, the vehicle also includes:

[0218] Communication interface 503 is used for communication between memory 501 and processor 502.

[0219] The memory 501 is used to store computer programs that can run on the processor 502.

[0220] Memory 501 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0221] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 10 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0222] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0223] Processor 502 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

[0224] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described control method for the four-way leg rest of the zero-gravity seat.

[0225] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0226] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying 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 application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0227] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0228] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0229] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0230] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0231] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0232] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A control method for a four-way leg rest of a zero-gravity seat, characterized in that, Includes the following steps: Acquire seat leg rest switch signals, identify the need to adjust the seat leg rest, and collect zero-gravity seat position signals; The adjustment scenario is determined based on the seat leg rest switch signal or the zero-gravity seat position signal; Based on the determined adjustment scenario and the zero-gravity seat position signal, internal calculations are performed to identify the interference relationship between the seat leg support module and the vehicle body crossbeam; Adjust the seat leg rest according to the recognition result; The step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam includes: When the seat leg rest is extended or retracted, determine whether the seat leg rest adjustment switch signal is a leg rest extension signal or a leg rest shortening signal; If the signal is the shortening of the leg rest, it is determined that there is no interference between the seat leg rest module and the vehicle body crossbeam; If it is the leg rest extension signal, determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle based on the seat-back linkage module signal; the first critical angle is the critical angle A of the seat-back linkage module; the critical angle A is obtained by setting the leg rest rotation to the initial position, setting the leg rest extension to the maximum length, and adjusting the seat-back linkage module until the seat leg rest is in zero contact with the vehicle body crossbeam. If the angle is greater than or equal to the first critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam; If the angle is less than the first critical angle, the adjustment amount of the leg support rotation unfolding angle is determined according to the leg support module signal to see if it is greater than or equal to the second critical angle; the second critical angle is the rotation critical angle B of the seat leg support module; the rotation critical angle B is obtained by setting the seat-back linkage module to the initial position, setting the leg support extension to the maximum length, and adjusting the seat leg support module to rotate until the seat leg support is in zero contact with the vehicle body crossbeam. If the angle is greater than or equal to the second critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam; If the angle is less than the second critical angle, it is determined that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

2. The control method for the four-way leg rest of the zero-gravity seat according to claim 1, characterized in that, The steps of acquiring the seat leg rest switch signal, identifying the need to adjust the seat leg rest, and collecting the zero-gravity seat position signal include: Obtain the seat leg rest switch signal, and identify the need to adjust the seat leg rest based on the seat leg rest switch signal; The zero-gravity seat position signal is obtained by acquiring the position signals of the seat slide rail module, the seat-back linkage module, and the leg rest module.

3. The control method for the four-way leg rest of the zero-gravity seat according to claim 1, characterized in that, The step of determining the adjustment scenario based on the seat leg rest switch signal or the zero-gravity seat position signal includes: The scenario of rotating the seat leg rest or extending / retracting the seat leg rest is determined based on the seat leg rest switch signal; The scenario of adjusting the seat forward and backward or sitting and leaning together is determined based on the zero-gravity seat position signal.

4. The control method for the four-way leg rest of the zero-gravity seat according to claim 1, characterized in that, The step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam also includes: When the seat leg rest is rotated, determine whether the seat leg rest adjustment switch signal is a leg rest rotation unfolding signal or a leg rest retraction signal; If the signal is the rotation and unfolding signal of the leg rest, it is determined that there is no interference between the seat leg rest module and the vehicle body crossbeam; If it is the leg rest retraction signal, determine whether the adjustment amount of the seat-back linkage adjustment module is greater than or equal to the first critical angle based on the signal of the seat-back linkage module. If the angle is greater than or equal to the first critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam; If it is less than the first critical angle, determine whether the adjustment amount of the leg support rotation unfolding angle is greater than or equal to the second critical angle based on the leg support module signal; If the angle is greater than or equal to the second critical angle, it is determined that there is no interference between the seat leg support module and the vehicle body crossbeam; If the angle is less than the second critical angle, it is determined that there is an interference relationship between the seat leg support module and the vehicle body crossbeam.

5. The control method for the four-way leg rest of the zero-gravity seat according to claim 1, characterized in that, The step of performing internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam also includes: When adjusting the seat forward and backward or in a coordinated sitting and reclining scenario, determine whether the change in the Hall signal of the leg rest module satisfies the interference condition between the leg rest and the crossbeam. If the interference condition between the leg rest and the crossbeam is met, it is determined that there is an interference relationship between the seat leg rest module and the vehicle body crossbeam.

6. The control method for the four-way leg rest of the zero-gravity seat according to claim 1, characterized in that, Adjusting the seat leg rest according to the recognition result includes: When the seat leg rest is rotating, the seat leg rest is controlled to rotate and unfold or retract based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, the seat leg rest is controlled to rotate and retract and the leg rest is shortened to the initial position at the same time. When the seat leg rest is extended or retracted, the seat leg rest is controlled to shorten or extend based on the determination result of no interference relationship and the seat leg rest adjustment switch signal; or, based on the determination result of interference relationship and the seat leg rest adjustment switch signal, the seat leg rest is simultaneously controlled to extend and rotate to unfold until the adjustment amount reaches the second critical angle. When adjusting the seat forward and backward or in a scenario involving seat-back coordination, the seat leg rest is controlled to rotate and unfold to the second critical angle based on the determination result of the interference relationship.

7. A control device for a zero-gravity seat four-way leg rest, used to implement the control method for a zero-gravity seat four-way leg rest as described in any one of claims 1-6, characterized in that, include: The signal acquisition module is used to acquire the seat leg rest switch signal, identify the need to adjust the seat leg rest, and collect the zero-gravity seat position signal; The scene determination module is used to determine the adjustment scene based on the seat leg rest switch signal or the zero-gravity seat position signal; The interference determination module is used to perform internal calculations based on the determined adjustment scenario and the zero-gravity seat position signal to identify the interference relationship between the seat leg support module and the vehicle body crossbeam. An adjustment module is used to adjust the seat leg rest according to the recognition result.

8. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the control method for the four-way leg rest of the zero-gravity seat as described in any one of claims 1-6.

9. A computer-readable storage medium storing a computer program thereon, characterized in that, The computer program is executed by a processor to implement the control method for the four-way leg rest of the zero-gravity seat as described in any one of claims 1-6.

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