Safety belt delivery device, control method, medium, computer product, and vehicle

Abstract

A safety belt delivery device, a control method, a medium, a computer product and a vehicle, the safety belt control method comprises: when a first preset condition is met, controlling the safety belt delivery device to deliver the safety belt to a side of a seat facing a passenger. The technical scheme of the application detects the state of the vehicle, and when the state of the vehicle meets the first preset condition, the safety belt delivery device of the vehicle controls the safety belt to be delivered to the side of the seat facing the passenger. In this way, the problem that the passenger needs to turn sideways to buckle the safety belt is solved, the convenience of the passenger grabbing the safety belt is improved, and the riding experience of the passenger is improved.

Description

Technical Field

[0001] This application relates to the field of seat belt control technology, specifically to a seat belt delivery device, control method, medium, computer product, and vehicle. Background Technology

[0002] Seat belts are one of the most important systems for protecting passenger safety when riding in a car. Due to the development of lightweight vehicles, more and more cars are becoming more compact. For example, in some models, the seat belt is often located slightly behind and to the left of the passenger. When the passenger fastens the seat belt, they need to turn their body to the side to fasten it, which affects the passenger's driving experience. Summary of the Invention

[0003] The purpose of this application is to provide a seat belt delivery device, control method, medium, computer product, and vehicle, which aims to solve the problem that in related vehicles, the seat belt needs to be fastened sideways into the buckle.

[0004] To achieve the objectives of this application, in a first aspect, this application provides a seat belt delivery device, the seat belt delivery device including a drive device and an extension member, the extension member being used to connect with a seat belt;

[0005] The drive device is connected to the extension member, and the drive device is used to drive the extension member to move closer to or away from the seat surface.

[0006] In one possible implementation, the protrusion is provided with a through hole for the seat belt to pass through.

[0007] In one possible implementation, the outer edge of the protrusion has a notch that communicates with the through hole.

[0008] In one possible implementation, the seatbelt delivery device further includes a connecting rod, one end of which is connected to the drive unit and the other end to the extender, the connecting rod being constructed as a straight rod or having a partially bent section.

[0009] In one possible implementation, the drive device includes a cylinder, a solenoid valve, and an air pump; the cylinder is used to connect to a seat belt, and the air pump is connected to the cylinder through the solenoid valve; the solenoid valve is used to control the airflow direction of the air pump to switch the cylinder extending or retracting.

[0010] In one possible implementation, the cylinder includes a cylinder body and a piston rod, the cylinder body forming a piston chamber, a first end of the piston rod being connected to the extension member, and a second end being movably disposed within the piston chamber; the second end separates the piston chamber to form a first chamber and a second chamber;

[0011] The solenoid valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the air supply port of the air pump, the second valve port is connected to the air return port of the air pump, the third valve port is connected to the first chamber, and the third valve port is connected to the second chamber.

[0012] In one possible implementation, the second chamber is closer to the protrusion than the first chamber, and when the seat belt delivery device delivers the seat belt, the first valve port is connected to the third valve port, and the second valve port is connected to the fourth valve port.

[0013] In one possible implementation, the second chamber is closer to the protrusion than the first chamber, and when the seat belt delivery device retracts the seat belt, the first valve port is connected to the fourth valve port, and the second valve port is connected to the third valve port.

[0014] Secondly, this application provides a seat belt control method, which includes the following steps:

[0015] When the first preset condition is met, the seat belt delivery device is controlled to deliver the seat belt to the side of the seat facing the passenger.

[0016] In one possible implementation, the first preset condition is met when the passenger is seated in the seat and the door on the side closest to the seat is closed.

[0017] In one possible implementation, if a seatbelt delivery instruction is received, the first preset condition is satisfied.

[0018] In one possible implementation, after delivering the seatbelt to the occupant-facing side of the seat, the following steps are also included:

[0019] When the second preset condition is met, the seat belt delivery device is controlled to retract the seat belt.

[0020] In one possible implementation, if the seatbelt is not fastened into the buckle within a first preset time after it has been fully extended, then the second preset condition is met.

[0021] In one possible implementation, the second preset condition is met if the seatbelt is not fastened and the passenger leaves the seat.

[0022] In one possible implementation, if the seat belt is fastened into the buckle and the time it takes to be fastened into the buckle reaches a second preset time, then the second preset condition is satisfied.

[0023] In one possible implementation, the second preset condition is satisfied if the seatbelt is unfastened after being fastened into the buckle.

[0024] Thirdly, this application provides a storage medium storing a seat belt control program, which is executed by a controller to implement a seat belt control method. The seat belt control method includes controlling a seat belt delivery device to deliver a seat belt to the side of the seat facing the passenger when a first preset condition is met.

[0025] Fourthly, this application provides a computer program product, the computer program being used to execute a seat belt control method, the seat belt control method including, when a first preset condition is met, controlling a seat belt delivery device to deliver a seat belt toward the side of the seat facing the passenger.

[0026] Fifthly, this application provides a vehicle including a seatbelt delivery device, the seatbelt delivery device including a drive unit and an extender for connecting to a seatbelt;

[0027] The drive device is connected to the extension member, and the drive device is used to drive the extension member to move closer to or away from the seat surface;

[0028] The seatbelt delivery device is used to perform a seatbelt control method, which includes controlling the seatbelt delivery device to deliver the seatbelt to the side of the seat facing the passenger when a first preset condition is met.

[0029] The technical solution of this application detects the vehicle's status. When the vehicle status meets a first preset condition, the vehicle's seatbelt delivery device controls the delivery of the seatbelt to the side of the seat facing the passenger. This solves the problem that passengers need to turn to the side to fasten the seatbelt, improves the convenience of passengers grabbing the seatbelt, and enhances the passenger's riding experience. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of one embodiment of the seat belt device and seat belt delivery device provided in this application;

[0032] Figure 2 for Figure 1A three-dimensional structural diagram of the protruding part;

[0033] Figure 3 for Figure 1 A schematic diagram of the structure of an embodiment of the drive device;

[0034] Figure 4 for Figure 3 Airflow diagram within the drive unit when the seatbelt is extended toward the passenger side by the central drive unit;

[0035] Figure 5 for Figure 3 Airflow diagram within the drive unit when the seatbelt retracts under the control of the drive unit;

[0036] Figure 6 This is a schematic diagram of the hardware operating environment involved in the solution of this application;

[0037] Figure 7 A flowchart illustrating the first embodiment of the seatbelt control method provided in this application;

[0038] Figure 8 This is a flowchart illustrating a second embodiment of the seatbelt control method provided in this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10-Seat belt device, 101-Retractor, 102-Guide ring, 103-Webbing, 104-Latch, 105-Rack;

[0041] 20-Seat belt delivery device, 201-Connecting rod, 202-Extend, 2021-Through hole, 2022-Notch, 2023-Abutting surface, 203-Drive device, 2031-Cylinder, 20311-Cylinder seat, 20312-Piston rod, 20313-First chamber, 20314-Second chamber, 2032-Three-position four-way directional valve, A-First valve port, B-Second valve port, P-Third valve port, T-Fourth valve port, 2033-Air pump;

[0042] 30 - Seats;

[0043] 40 - Buckle. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or it can be in a middle component. When a component is said to be "connected" to another component, it can be directly connected to the other component or it may be in a middle component.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0047] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] This application discloses a vehicle including a body, seats, and seatbelt devices. The body serves as the supporting frame of the vehicle, supporting and connecting the various assemblies. Seats are mounted on the body for passengers to sit on. Seatbelt devices are used to restrain occupants to the seats to protect their safety.

[0049] Please refer to Figure 1 The seatbelt device 10 includes a retractor 101, a guide ring 102, a webbing 103, a latch 104, and a buckle 105. The retractor 101 is fixed to the vehicle body and is used to wind up the webbing 103. Passengers can pull the webbing 103, causing the retractor 101 to rotate, thereby releasing more webbing 103 to secure themselves to the seat 30. When the passenger releases the webbing 103 from the seat 30, the webbing 103 can be retracted back into the retractor 101 by its rotation. The guide ring 102 guides the movement of the webbing 103. The locking tongue 104 is located on the webbing 103. When the webbing 103 is pulled up, the locking tongue 104 can engage with the buckle 105 fixed to the seat 30 to secure the webbing 103 and the passenger to the seat 30, thus protecting the passenger's safety.

[0050] In related technologies, passengers need to turn to the side to pull the webbing 103 in order to engage the latch 104 into the buckle 105. To solve the above problem, the vehicle provided in this application also includes a seat belt delivery device 20. The seat belt delivery device 20 is used to drive the latch 104 to deliver the seat belt to the side of the seat 30 where the passenger is seated when the vehicle meets the first preset conditions, thereby improving the convenience for the passenger to grab the seat belt.

[0051] The seat belt delivery device 20 can be installed on the vehicle body or on the seat 30. When the seat belt delivery device 20 is installed on the seat 30, the seat belt delivery device 20 on the seat 30 can move with the movement of the seat 30. No matter how the seat 30 is adjusted, the seat belt delivery device 20 can remain in a relatively fixed position for the convenience of passengers.

[0052] When the seatbelt delivery device 20 is installed on the seat 30, it can be installed on the backrest, seat surface, or headrest of the seat 30; this application does not limit the installation location. When the seatbelt delivery device 20 is installed on the backrest, it can extend the seatbelt vertically forward for easy access by the passenger. Alternatively, it can extend the seatbelt diagonally downwards to bring the seatbelt latch closer to the buckle, reducing the distance the passenger needs to pull the seatbelt and improving the passenger experience.

[0053] When the seat belt delivery device 20 is installed on the seat, the seat belt delivery device 20 can deliver the seat belt diagonally upward. The seat belt delivery device can be finely adjusted according to the height and body shape of the passenger to ensure that the seat belt webbing 103 can fit snugly against the passenger's body and provide better protection.

[0054] When the seatbelt delivery device 20 is installed in the headrest, if the passenger is short, the seatbelt delivery device 20 can pass over the passenger's head, avoiding contact between the webbing 103 and the passenger's neck, thus improving riding comfort. If the passenger is tall, the seatbelt delivery device 20 can extend along the passenger's shoulder, thereby concentrating the restraining force of the seatbelt webbing 103 on the passenger's shoulders, reducing the feeling of restraint from the webbing 103, and improving the user experience.

[0055] The seat belt delivery device 20 can also be installed in the vehicle body, which can improve the stability of the seat belt delivery device 20, reduce the degree of deformation of the seat belt delivery device 20 when the vehicle is hit by a collision, and improve the impact resistance of the seat belt delivery device 20.

[0056] To deliver the seatbelt, the seatbelt delivery device 20 includes an extender 202 and a drive unit 203. The vehicle also has a buckle 40, one end of which is fixed to the seat 30, and the other end is connected to the end of the webbing 103 facing away from the retractor 101. The extender 202 is connected to the webbing 103. Since both sides of the webbing 103 are tightened by the retractor 101 and the buckle 40 respectively, when the extender 202 moves towards the side of the seat 30 facing the passenger, the webbing 103, driven by the extender 202, also moves towards the side of the seat 30 facing the passenger, thus extending the latch 104. When the extender 202 moves towards the side of the seat 30 away from the passenger, the webbing 103, driven by the extender 202, also moves towards the side of the seat 30 away from the passenger, thus retracting the latch 104 or the webbing 103. Understandably, in other possible embodiments of this application, the extender 202 may also be directly connected to the locking tongue, and the driving device may directly drive the locking tongue to move, thereby driving the seat belt to extend and retract.

[0057] The webbing 103 can be connected to the protruding member 202 by adhesive or by heat pressing; this application does not limit this. Please refer to... Figure 2 In one embodiment of this application, the protruding member 202 has a through hole 2021 extending along its thickness, and the webbing 103 passes through the through hole 2021, which is used to fix the webbing 103. Compared with bonding or hot pressing, the through hole 2021 allows the webbing 103 to be connected to the protruding member 202 simply by passing it through, reducing the installation difficulty of the protruding member 202 and the webbing 103 and improving the installation efficiency of the protruding member 202 and the webbing 103. Secondly, the relative position of the webbing 103 with the protruding member 202 can be arbitrarily adjusted within the through hole 2021, so that the protruding member 202 can drive the webbing 103 to adapt to the body shape and sitting posture of different passengers, improving the versatility of the seat belt delivery device 20.

[0058] In one embodiment of this application, the outer edge of the protruding member 202 is provided with a notch 2022, which is connected to the through hole 2021. During the installation process of the webbing 103 with the protruding member 202, the webbing 103 can be inserted into the through hole 2021 through the notch 2022 on the outer edge of the protruding member 202 without having to remove one end of the webbing 103 from the buckle 40. This reduces the difficulty of assembling the webbing 103 with the protruding member 202.

[0059] The extender 202 has an abutment surface 2023 on the side opposite to the drive device. The abutment surface 2023 is used to contact the webbing 103 of the seat belt, thereby pushing the webbing 103 outward. In one embodiment of this application, the abutment surface 2023 protrudes from the side opposite to the drive device, so that the abutment surface 2023 and the webbing 103 can be completely fitted together, increasing the contact area between the abutment surface 2023 and the webbing 103, and improving the stability of the extender pushing the webbing 103.

[0060] The drive device 203 is used to drive the extension member 202 to move. The drive device 203 can be a motor, a cylinder, or an electric cylinder; this application does not limit this. In one embodiment of this application, the seat belt delivery device 20 uses a cylinder as the drive device 203. When the seat belt delivery device 20 is in the first state of delivering the seat belt, the cylinder extends; when the seat belt delivery device 20 is in the second state of retracting the seat belt, the cylinder retracts. The linear arrangement of the cylinder can effectively reduce the range of motion of the extension member 202, reduce the encroachment of the extension member 202 on the vehicle space, and improve the space utilization of the vehicle.

[0061] For details, please refer to Figure 3 The drive unit 203 includes a cylinder 2031, a three-position four-way directional valve 2032, and an air pump 2033. The cylinder 2031 includes a cylinder seat 20311 and a piston rod 20312. The cylinder seat forms a piston chamber. The piston rod 20312 serves as an extension 202, with one end movably disposed within the piston chamber and the other end connected to the webbing 103. The piston rod 20312 divides the piston chamber into a first chamber 20313 and a second chamber 20314. The air pump 2033 is connected to the piston chamber via the three-position four-way directional valve 2032. The three-position four-way directional valve 2032 has a first valve port A, a second valve port B, a third valve port P, and a fourth valve port T. The first valve port is connected to the first chamber 20313 of the piston chamber, and the second valve port B is connected to the second chamber 20314 of the piston chamber. The third valve port P is connected to the air supply port of the air pump 2033, and the fourth valve port T is connected to the air return port of the air pump 2033.

[0062] Please refer to Figure 4The three-position four-way directional valve 2032 has a valve core. When the valve core is in the left position, the third valve port P is connected to the first valve port A, and the fourth valve port T is connected to the second valve port B. The airflow from the air pump 2033 can reach the cylinder 2031 through the third valve port P and the first valve port A, and then return to the air pump 2033 through the first chamber 20313, the second chamber 20314, the third valve port P, and the fourth valve port T of the cylinder 2031. During the movement of the airflow in the cylinder 2031, the airflow will push the piston rod 20312 to the right, thereby extending the seat belt. At this time, if the valve core is switched to the middle position, the passage of the first valve port A, the second valve port B, the third valve port P, and the fourth valve port T is blocked by the valve core, and the gas is pressurized into the piston chamber, thereby maintaining the current extension distance of the seat belt.

[0063] Please refer to Figure 5 When the valve core is in the right position, the third valve port P is connected to the second valve port B, and the fourth valve port T is connected to the first valve port A. The airflow from the air pump 2033 can reach the cylinder 2031 via the third valve port P and the second valve port B, and then return to the air pump 2033 via the second chamber 20314, the first chamber 20313, the first valve port A, and the fourth valve port T. During the movement of the airflow within the cylinder 2031, the airflow will push the piston rod 20312 to the left, thereby retracting the seatbelt.

[0064] Compared to other drive devices, the cylinder 2031, in conjunction with the three-position four-way directional valve 2032, features low cost, high quietness, fast response, and low maintenance cost. The use of a cylinder in the drive device 203 can significantly improve the quietness (NVH) of the seat belt delivery device 20, increase the response speed of the seat belt delivery device 20, and reduce the maintenance cost of the seat belt delivery device 20.

[0065] The seatbelt delivery device 20 also includes a connecting rod 201, one end of which is connected to a drive unit 203, and the other end is connected to an extension member. Power from the drive unit 203 can reach the seatbelt via the connecting rod 201 and the extension member 202, thereby driving the seatbelt to move. The connecting rod 201 can be a straight rod or a curved rod; this application does not limit this. In one embodiment of this application, the connecting rod 201 is constructed as a straight rod, so that the extension member 202 moves linearly within the cockpit space, thereby reducing the range of motion of the extension member 202, minimizing its encroachment on vehicle space, and improving the vehicle's space utilization.

[0066] In another embodiment of this application, the connecting rod 201, in addition to being a straight rod, also has a bent section. By providing the bent section, the drive device 203 can push the seat belt towards the side of the passenger facing away from the seat. This reduces the difficulty for the passenger in picking up the seat belt and improves the passenger's driving experience.

[0067] Understandably, in other possible embodiments of this application, the connecting rod 201 may also be constructed entirely as a curved rod. The curved rod configuration can increase the delivery angle of the seat belt delivery device 20 for the seat belt, reduce the difficulty for passengers to pick up the seat belt, and improve the passenger's driving experience.

[0068] Please refer to Figure 6 The vehicle includes a controller 1001, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 is mainly used for user data interaction and may include a display screen, an input unit such as a keyboard, and optionally, a standard wired or wireless interface. The network interface 1004 is mainly used for data communication with a network server and may optionally include a standard wired or wireless interface (such as a Wi-Fi interface).

[0069] The controller 1001 is used to call computer instructions to execute the seat belt control method. The controller 1001 can be a central processing unit (CPU), or it can be other general-purpose controllers, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0070] Memory 1005 is used to store computer instructions, and may be used to store the operating system, network communication module, user interface module, and seatbelt control program, etc. Memory 1005 can be volatile memory or non-volatile memory, or may include both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

[0071] It should be noted that when the controller 1001 is a general-purpose controller, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) is integrated in the controller.

[0072] It should be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

[0073] In addition to the data bus, this bus may also include a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled "bus" in the diagram.

[0074] This application also proposes a storage medium storing a seat belt control program. The seat belt control program is executed by a controller to implement a seat belt control method, thereby solving the problem that passengers need to turn to the side to fasten the seat belt, improving the convenience of passengers grabbing the seat belt, and enhancing the passenger experience.

[0075] The seat belt control method provided in this application will be described in detail below.

[0076] Please refer to Figure 7 , Figure 7 This is a flowchart illustrating a first embodiment of the seatbelt control method provided in this application. In this embodiment, the seatbelt control method includes the following steps:

[0077] S101. When the first preset condition is met, the seat belt delivery device is controlled to deliver the seat belt to the side of the seat facing the passenger.

[0078] The technical solution of this application detects the vehicle's status. When the vehicle status meets a first preset condition, the vehicle's seatbelt delivery device controls the delivery of the seatbelt to the side of the seat facing the passenger. This solves the problem that passengers need to turn to the side to fasten the seatbelt, improves the convenience of passengers grabbing the seatbelt, and enhances the passenger's riding experience.

[0079] There are multiple ways for the controller to determine whether the vehicle meets the first preset condition. In one embodiment of this application, if the passenger has already sat down in the seat, the controller determines that the vehicle meets the first preset condition. At this time, the controller will push the seat belt towards the side of the seat where the passenger is located, thereby reducing the difficulty for the passenger to grab the seat belt and improving the passenger's driving experience.

[0080] There are several ways to determine whether a passenger has been seated. In one embodiment of this application, a pressure sensor is provided on the seat surface to obtain the pressure on the seat surface. When the pressure on the seat surface is greater than a preset pressure, it is determined that the passenger has been seated. The preset pressure can be adjusted according to the passenger's needs. When the passenger has a high sensitivity requirement for the seat belt delivery device, a smaller preset pressure can be set; when the passenger has a low sensitivity requirement for the seat belt delivery device, a larger preset pressure can be set. In one embodiment of this application, the preset pressure is set to 400N. At this value, the seat belt delivery device will not frequently activate erroneously due to excessively high sensitivity, nor will it fail to recognize whether the passenger has been seated due to excessively low sensitivity.

[0081] In other embodiments of this application, the seating status of passengers can also be obtained by detecting seat temperature, detecting passenger heart rate, and performing facial recognition on passengers. This application does not impose any restrictions on this method.

[0082] Even after passengers are seated, there is always a possibility of them suddenly exiting the vehicle. If the seatbelt extends at this time, it may collide with the exiting passenger, potentially damaging the seatbelt delivery device. Therefore, in one embodiment of this application, the controller only determines that the vehicle meets the first preset condition and pushes the seatbelt towards the passenger's seat if the passenger is already seated and the door on the side closest to the seat is closed. This avoids the seatbelt extending and obstructing the passenger's sudden exit, reduces the possibility of collision between the extended seatbelt and the passenger, reduces the risk of damage to the seatbelt delivery device, and improves the passenger's riding experience.

[0083] There are several ways for the controller to identify when a car door is closed. In one embodiment of this application, a door lock sensor is installed inside the car door. The seat belt controller can obtain the locking status of the door lock through the door lock sensor, thereby determining the timing for the seat belt to be deployed. In other embodiments of this application, a vision camera can be used to capture images of the car door and obtain the opening and closing status of the car door through these images.

[0084] Understandably, when the vehicle is in motion, no one will be sitting or getting on or off inside. Therefore, in one embodiment of this application, the controller will only determine that the vehicle meets the first preset condition if the vehicle is parked and passengers are already seated. When the vehicle is not parked, the controller will stop detecting the seating status of passengers. This avoids the controller repeatedly detecting the seating status of passengers while the vehicle is in motion, thus reducing vehicle energy consumption.

[0085] Similarly, in some other possible embodiments of this application, the controller will only determine that the vehicle meets the first preset condition and deliver the seat belt to the passenger side when the vehicle is parked, the passenger is seated, and the door on the side closest to the seat is closed. This avoids the controller repeatedly checking the passenger's seating status while the vehicle is in motion, thus reducing vehicle energy consumption.

[0086] It should be noted that the aforementioned driving state can be either forward or backward, and this application does not limit this. There are various ways for the controller to obtain the vehicle's driving state. The controller can obtain the vehicle's driving state by acquiring its speed, or by detecting the vehicle's gear position (whether it is in P, N, D, or R). The vehicle can also obtain its driving state by measuring the rotational speed of its wheels, and this application does not limit this as well.

[0087] In addition to the seating status of passengers, in other possible embodiments of this application, upon receiving a seatbelt delivery command, the controller will also determine that the vehicle meets a first preset condition, thereby delivering the seatbelt to the passenger side. This seatbelt delivery command can be issued by the passenger via voice to the controller, or by the passenger interacting with the vehicle control panel; this application does not limit this. When the controller receives the seatbelt delivery command, regardless of whether there are currently any passengers seated, the controller will control the seatbelt delivery device to deliver the seatbelt to the passenger side. This increases the application scenarios of the seatbelt delivery device, enhances its intelligence, and improves its versatility.

[0088] Please refer to Figure 8 , Figure 8 The flowchart of the second embodiment of the seat belt control method provided in this application is shown. In this embodiment, after the seat belt is delivered to the side of the seat facing the passenger, the following steps are also included:

[0089] S201. When the second preset condition is met, the seat belt delivery device is controlled to retract the seat belt.

[0090] In this embodiment, when the vehicle meets the second preset condition, the seat belt delivery device is controlled to retract the seat belt to avoid the seat belt from hindering the movement of the passengers, reduce the possibility of the extended seat belt colliding with the passengers, reduce the risk of damage to the seat belt delivery device, and improve the passenger's riding experience.

[0091] There are several ways for the controller to determine if a vehicle meets the second preset condition. In one embodiment of this application, if the door near the seat is open, and this open state lasts for a fourth preset time after the seatbelt is fully extended, or if the door near the seat changes from a closed state to an open state, then the second preset condition is met. In this embodiment, after the seatbelt delivery device extends the seatbelt towards the passenger, if the door near the seat where the seatbelt is extended remains open for a fourth preset time after the seatbelt is fully extended, it indicates that the passenger in that seat may need to get out of the vehicle. At this time, the controller will determine that the vehicle meets the second preset condition, and thus control the seatbelt delivery device to retract the seatbelt. This avoids the seatbelt obstructing the passenger's movements, reduces the possibility of the extended seatbelt colliding with the passenger, reduces the risk of damage to the seatbelt delivery device, and improves the passenger's riding experience.

[0092] The first preset time can be set before the vehicle leaves the factory, or it can be set by the passenger. When the passenger needs the seat belt to retract quickly, the passenger can set the first preset time to a shorter time, such as five seconds or fifteen seconds. When the passenger needs the seat belt to remain extended for a longer period of time, the passenger can set the first preset time to a longer time, such as twenty seconds or thirty seconds.

[0093] Understandably, in addition to the doors remaining open, the change of the door near the seat from closed to open also indicates that the passenger intends to get out of the vehicle. Therefore, in another possible embodiment of this application, when the door on the seat side changes from closed to open, the controller will also determine that the vehicle meets the second preset state, thereby controlling the seat belt delivery device to retract the seat belt, thereby avoiding the seat belt from obstructing the passenger's movements, reducing the possibility of the extended seat belt colliding with the passenger, reducing the risk of damage to the seat belt delivery device, and improving the passenger's riding experience.

[0094] In certain scenarios, passengers may choose not to fasten their seatbelts. Specifically, in one embodiment of this application, if the seatbelt is not fastened into the buckle within a first preset time after it has been fully extended, the second preset condition is met. In this embodiment, when the first preset time has elapsed after the seatbelt has been fully extended and the passenger has not fastened the seatbelt into the buckle, the controller will retract the seatbelt. This avoids the seatbelt obstructing the passenger's movements, reduces the possibility of the extended seatbelt colliding with the passenger, reduces the risk of damage to the seatbelt delivery device, and improves the passenger's riding experience.

[0095] To prevent passengers from forgetting to fasten their seat belts, in one embodiment of this application, if the seat belt is not fastened within a first preset time after it has been fully extended, the passenger is reminded that the seat belt is not fastened; if the seat belt is still not fastened within a third preset time after the reminder, the second preset condition is met.

[0096] In this embodiment, after the controller controls the seatbelt delivery device to extend the seatbelt towards the passenger side, if the seatbelt is not fastened within a first preset time after it is fully extended, the controller will remind the passenger that the seatbelt is not fastened. This reminder can be given via vehicle voice prompts or by displaying text on the control panel; this application does not limit this method. If the seatbelt is still not fastened within a third preset time after the reminder, the controller will determine that the passenger has no intention of fastening the seatbelt. At this point, the controller will determine that the vehicle meets a second preset condition and then control the seatbelt delivery device to retract the seatbelt. This avoids the seatbelt obstructing the passenger's movements, reduces the possibility of the extended seatbelt colliding with the passenger, reduces the risk of damage to the seatbelt delivery device, and improves the passenger's riding experience.

[0097] The first and third preset times can be set before the vehicle leaves the factory, or they can be set by the passengers. When passengers need the seat belt to retract quickly, they can set the first and third preset times to a shorter time, such as five seconds or fifteen seconds. When passengers need the seat belt to remain extended for a longer period, they can set the first and second preset times to a longer time, such as twenty seconds or thirty seconds.

[0098] In addition, in one embodiment of this application, the second preset condition can also be met if the seat belt is not fastened and the passenger leaves the seat. Specifically, in this embodiment, if the passenger leaves the seat, it proves that the passenger intends to get out of the vehicle or change seats. At this time, regardless of whether the vehicle is in motion, the controller will control the seat belt to retract, thereby avoiding the seat belt from hindering the passenger's movements, reducing the possibility of the extended seat belt colliding with the passenger, reducing the risk of damage to the seat belt delivery device, and improving the passenger's riding experience.

[0099] In some scenarios of this application, if the seat belt is fastened into the buckle, it can also be determined that the second preset condition is met. Specifically, in one embodiment of this application, if the seat belt is fastened into the buckle and the time it has been fastened into the buckle reaches the second preset time, then the second preset condition is met. In this embodiment, if the seat belt is fastened into the buckle and the time it has been fastened into the buckle reaches the second preset time, it proves that the passenger has no intention of getting off the vehicle. At this time, the controller will control the seat belt to retract, thereby restraining the passenger from the seat and protecting the passenger's safety.

[0100] In another possible embodiment of this application, if the seatbelt is unfastened after being fastened into the buckle, it proves that the passenger intends to get off the vehicle. At this time, the controller will also determine that the vehicle status meets the second preset condition, and then control the seatbelt delivery device to retract the seatbelt. In this way, the seatbelt avoids obstructing the passenger's movements, reduces the possibility of the extended seatbelt colliding with the passenger, reduces the risk of damage to the seatbelt delivery device, and improves the passenger's riding experience.

[0101] It should be noted that, in the above embodiments, the controller can obtain the buckle status of the seat belt in various ways. The controller can obtain the buckle status through a seat belt sensor located inside the buckle. Alternatively, it can use a vision camera to capture images of the seat belt buckle and determine the buckle status based on these images. This application does not limit the scope of this method.

[0102] In other application scenarios, if the vehicle is switched from a stopped state to a moving state and the seat belt is still not fastened, the vehicle is also deemed to have met the second preset condition. Specifically, in one embodiment of this application, if the vehicle switches from a stopped state to a moving state and the seat belt is still not fastened within a fifth preset time, the second preset condition is met. In this embodiment, when the vehicle is switched to a moving state, this moving state can be a switch from a stopped state to a forward state or a switch from a stopped state to a reverse state; this application does not limit this. When the vehicle switches from a stopped state to a moving state, and within the fifth preset time from the switch, the seat belt is still not fastened, the controller will determine that the passenger has no intention of fastening the seat belt. At this time, the controller will determine that the vehicle meets the second preset condition and control the seat belt delivery device to retract the seat belt. This avoids the seat belt obstructing the passenger's movements, reduces the possibility of the extended seat belt colliding with the passenger, reduces the risk of damage to the seat belt delivery device, and improves the passenger's riding experience.

[0103] The fifth preset time can be set before the vehicle leaves the factory, or it can be set by the passenger. When the passenger needs the seat belt to retract quickly, the fifth preset time can be set to a shorter time, such as five seconds or fifteen seconds. When the passenger needs the seat belt to remain extended for a longer period of time, the fifth preset time can be set to a longer time, such as twenty seconds or thirty seconds.

[0104] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indicators are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0105] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A seatbelt delivery device, characterized in that, The seat belt delivery device is disposed on the seat and includes a drive unit and an extension member for connecting to the seat belt; the seat belt delivery device is used to deliver the seat belt to the side of the seat facing the passenger when the passenger has sat down in the seat or when a seat belt delivery instruction is received. The drive device is connected to the extension member, and the drive device is used to drive the extension member to move closer to or away from the seat surface; The driving device includes a cylinder, a solenoid valve, and an air pump; the cylinder is used to connect to the seat belt, and the air pump is connected to the cylinder through the solenoid valve; the solenoid valve is used to control the airflow direction of the air pump to switch the cylinder to extend or retract to drive the seat belt to move. The seatbelt delivery device further includes a connecting rod, one end of which is connected to the drive device and the other end of which is connected to the extension member. The connecting rod has a partially bent section.

2. The seatbelt delivery device as claimed in claim 1, characterized in that, The protrusion is provided with a through hole for the seat belt to pass through.

3. The seatbelt delivery device as claimed in claim 2, characterized in that, The outer edge of the protruding part is provided with a notch, and the notch is connected to the through hole.

4. The seatbelt delivery device as claimed in claim 1, characterized in that, The cylinder includes a cylinder body and a piston rod. The cylinder body forms a piston chamber. A first end of the piston rod is connected to the extension member, and a second end is movably disposed within the piston chamber. The second end separates the piston chamber to form a first chamber and a second chamber. The solenoid valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the air supply port of the air pump, the second valve port is connected to the air return port of the air pump, the third valve port is connected to the first chamber, and the third valve port is connected to the second chamber.

5. The seatbelt delivery device as claimed in claim 4, characterized in that, The second chamber is closer to the protrusion than the first chamber. When the seat belt delivery device delivers the seat belt, the first valve port is connected to the third valve port, and the second valve port is connected to the fourth valve port.

6. The seatbelt delivery device as claimed in claim 4, characterized in that, The second chamber is closer to the protruding member than the first chamber. When the seat belt delivery device retracts the seat belt, the first valve port is connected to the fourth valve port, and the second valve port is connected to the third valve port.

7. A seatbelt control method based on the seatbelt delivery device according to any one of claims 1 to 6, characterized in that, Includes the following steps: When the first preset condition is met, the seat belt delivery device will deliver the seat belt to the side of the seat facing the passenger. The conditions for satisfying the first preset condition include: The passenger has taken their seat; or, a seatbelt delivery instruction has been received.

8. The seatbelt control method as described in claim 7, characterized in that, After delivering the seatbelt to the side of the seat facing the passenger, the following steps are also included: When the second preset condition is met, the seat belt delivery device is controlled to retract the seat belt.

9. The seatbelt control method as described in claim 8, characterized in that, If the seatbelt is not fastened into the buckle within a first preset time after it has been fully extended, then the second preset condition is met.

10. The seatbelt control method as described in claim 8, characterized in that, If the seatbelt is not fastened and the passenger leaves the seat, the second preset condition is met.

11. The seatbelt control method as described in claim 8, characterized in that, If the seat belt is fastened into the buckle and the time it takes to be fastened into the buckle reaches the second preset time, then the second preset condition is met.

12. The seatbelt control method as described in claim 8, characterized in that, If the seatbelt is unfastened after being fastened into the buckle, the second preset condition is met.

13. A storage medium, characterized in that, The storage medium stores a control program for the seat belt, which is executed by the controller to implement the seat belt control method as described in any one of claims 7-12.

14. A computer program product, characterized in that, The computer program product includes a computer program for performing the seatbelt control method as described in any one of claims 7-12.

15. A vehicle, characterized in that, Includes the seat belt delivery device as described in any one of claims 1-6, wherein the seat belt delivery device is used to perform the seat belt control method as described in any one of claims 7-12.

16. The vehicle as claimed in claim 15, characterized in that, The vehicle also includes a seat, and the seatbelt delivery device is located on the seat.

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