Safety belt adjusting device, vehicle with safety belt adjusting device and control method

Abstract

The embodiment of the invention provides a safety belt adjusting device, a vehicle with the safety belt adjusting device and a control method. The safety belt adjusting device comprises a mounting base, at least one limiting groove and at least one first rack are formed in the mounting base, at least part of the limiting groove extends in the length direction of a vehicle body, and at least part of the first rack extends in the length direction of the vehicle body; the adjusting assembly comprises an adjusting sliding block, a first gear and a first motor, one side of the adjusting sliding block is connected with the mounting base, the other side of the adjusting sliding block is connected with the safety belt, the adjusting sliding block is slidably arranged in the limiting groove, the first gear is meshed with the first rack, and the output end of the first motor is connected with the first gear; the sensor assembly is arranged on at least one of the safety belt and the vehicle seat; and the control unit is electrically connected with the sensor assembly and the first motor. According to the scheme, the technical problem that the safety belt cannot automatically adjust the horizontal distance is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of automobile safety, in particular, to a safety belt adjusting device, a vehicle having the same and a control method. BACKGROUND

[0002] Target objects of different body types may experience neck compression or shoulder disengagement after wearing a safety belt, resulting in discomfort and even failing to provide safety restraint. Currently, the industry generally increases height adjuster devices, which can adjust the height of the fixed point on the safety belt by manually adjusting the height adjuster, thereby improving the problem of neck compression or shoulder disengagement. However, most target objects are unaware of the height adjuster device on the vehicle, resulting in the target object experiencing neck compression or shoulder disengagement after wearing the safety belt, poor experience, and even failing to provide safety restraint in the event of a collision, posing a risk to personal safety.

[0003] There is currently no good solution to the above problem. SUMMARY

[0004] Embodiments of the present application provide a safety belt adjusting device, a vehicle having the same and a control method to at least solve the technical problem that the safety belt cannot be automatically adjusted in the prior art.

[0005] According to an aspect of embodiments of the present application, a safety belt adjusting device is provided, comprising: a mounting base, at least one limiting slot and at least one first gear rack are formed on the mounting base, at least part of the limiting slots are arranged to extend along the length direction of the vehicle body, and at least part of the first gear racks are arranged to extend along the length direction of the vehicle body; an adjusting assembly, the adjusting assembly comprising an adjusting slider, a first gear and a first motor, one side of the adjusting slider is connected with the mounting base, the other side of the adjusting slider is connected with the safety belt, the adjusting slider is slidably arranged in the limiting slot, the first gear is engaged with the first gear rack, the output end of the first motor is connected with the first gear, and the first motor is used to drive the first gear to rotate, so as to drive the adjusting slider to move along the length direction of the vehicle body; a sensor assembly, the sensor assembly is arranged on at least one of the safety belt and the vehicle seat, and is used to detect the force of the safety belt and the vehicle seat; and a control unit, the control unit is electrically connected with the sensor assembly and the first motor.

[0006] Further, a plurality of limiting holes are formed in the mounting base, and a matching hole is formed in the adjusting slider, and a limiting pin is arranged in the matching hole and the limiting hole to connect the matching hole and the limiting hole, and the adjusting assembly further comprises: a first electromagnetic block connected with the adjusting slider, and the first electromagnetic block is electrically connected with the control unit, and the first electromagnetic block is arranged on one side of the limiting pin, and the limiting pin has a first adsorption state of being attracted by the first electromagnetic block to be located outside the limiting hole, and the limiting pin has a limiting state of being separated from the first electromagnetic block and arranged in the limiting hole, wherein when the limiting pin is in the limiting state, the limiting pin is arranged in the matching hole and extends into the limiting hole, and when the limiting pin is in the first adsorption state, the first electromagnetic block attracts the limiting pin to arrange the limiting pin and the limiting hole and the matching hole at a distance, so that the adjusting slider can slide along the length direction of the vehicle body relative to the mounting base.

[0007] Further, the adjusting assembly further comprises a first elastic member, one end of the first elastic member is connected with the limiting pin, and the other end of the first elastic member is connected with the first electromagnetic block, and the first elastic member is arranged between the first electromagnetic block and the limiting pin, wherein when the limiting pin is in the first adsorption state, the first elastic member is in a compressed state.

[0008] Further, at least one second rack is formed in the adjusting slider and extends along the height direction of the vehicle body, and the safety belt adjusting device further comprises: an adjusting seat slidably connected with the adjusting slider along the height direction of the vehicle body, and the adjusting seat is arranged on the side of the adjusting slider away from the mounting base, and the adjusting seat is connected with the safety belt, and the adjusting seat comprises a second gear and a second motor, the second gear is engaged with the second rack, and the output end of the second motor is connected with the second gear, and the second motor is used to drive the second gear to rotate to drive the adjusting seat to move along the height direction of the vehicle body, wherein the second motor is electrically connected with the control unit.

[0009] Further, a plurality of locking grooves are formed in the side wall of the adjusting slider, and the adjusting seat is provided with a second electromagnetic block and a locking member, the locking member is connected with the locking grooves, the second electromagnetic block is electrically connected with the control unit, the locking member has a second adsorption state of being attracted by the second electromagnetic block to be located outside the locking groove, and the locking member has a locking state of being separated from the second electromagnetic block and arranged in the locking groove, wherein when the locking member is in the locking state, at least part of the locking member extends into the locking groove, and when the locking member is in the second adsorption state, the second electromagnetic block attracts the locking member to arrange the locking member and the locking groove at a distance, so that the adjusting seat can slide along the height direction of the vehicle body relative to the adjusting slider.

[0010] Further, the adjusting seat further comprises a second elastic member, one end of the second elastic member is connected with the locking member, and the other end of the second elastic member is connected with the second electromagnetic block, and the second elastic member is arranged between the locking member and the second electromagnetic block, wherein when the locking member is in the second adsorption state, the second elastic member is in a compressed state.

[0011] According to another aspect of the embodiments of the present application, a vehicle is also provided, the vehicle having a seat belt adjusting device, the seat belt adjusting device being the above-mentioned seat belt adjusting device.

[0012] According to another aspect of the embodiments of the present application, a seat belt adjusting method is also provided, the method being adjusted by the above-mentioned seat belt adjusting device, and the method comprising: obtaining basic information and seat belt force information of a target object, the basic information at least comprising weight information and body type information of the target object; generating an adjusting instruction set based on the basic information and the seat belt force information, the adjusting instruction set being used to control the adjusting slider to move along the length direction of the vehicle body and the height direction of the vehicle body.

[0013] Optionally, the generating of the adjusting instruction set based on the basic information and the seat belt force information comprises: calculating a percentile body type of the target object based on the basic information; and generating a longitudinal adjusting instruction in the adjusting instruction set for controlling the adjusting seat to move along the height direction of the vehicle body until the percentile body type meets a first preset condition, in a case where it is determined that the percentile body type does not meet the first preset condition.

[0014] Optionally, the generating of the adjusting instruction set based on the body type information and the seat belt force information comprises: judging a seat belt force condition based on the seat belt force information; and generating a transverse adjusting instruction in the adjusting instruction set for controlling the adjusting slider to move along the length direction of the vehicle body until the seat belt force meets a second preset condition, in a case where it is determined that the seat belt force does not meet the second preset condition.

[0015] In the embodiments of the present application, the mounting base is provided with a limiting groove extending along the length direction of the vehicle body and a first rack, the adjusting slider can slide along the length direction of the limiting groove, the first gear is engaged with the first rack, the first motor drives the first gear to cooperate with the first rack, and the adjusting slider can be driven to move along the direction of the gear and rack cooperation, that is, the length direction of the vehicle body. Since one side of the adjusting slider is connected with the seat belt, the seat belt can be driven to move along the length direction of the vehicle body in the process of the movement of the adjusting slider, thereby realizing the function of the adjustable seat belt along the length direction of the vehicle body. Meanwhile, the seat belt adjusting device further comprises a sensor assembly and a control unit, the force condition of the vehicle seat and the force condition of the seat belt are detected in real time through the sensor assembly, the pose information between the passenger and the seat belt can be obtained, it is calculated through the control unit whether the current seat belt is in the best body feeling position of the passenger, and then the first motor can be controlled to drive the adjusting slider to move along the length direction of the vehicle body, thereby realizing the intelligent adaptive adjustment of the seat belt along the length direction of the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0017] Figure 1 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application;

[0018] Figure 2 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application;

[0019] Figure 3 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application;

[0020] Figure 4 is a structural schematic view of an optional adjusting slider according to an embodiment of the application;

[0021] Figure 5 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application;

[0022] Figure 6 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application;

[0023] Figure 7 is a structural schematic view of an optional safety belt adjusting device according to an embodiment of the application.

[0024] Among the above drawings, the following reference signs are included:

[0025] 10, mounting base; 11, limiting groove; 12, first rack; 13, limiting hole;

[0026] 20, adjusting slider; 21, first gear; 22, first motor; 23, matching hole; 24, first electromagnetic block; 25, first elastic member; 26, second rack; 27, locking groove;

[0027] 30, limiting pin;

[0028] 40, adjusting seat; 41, second gear; 42, second motor; 43, second electromagnetic block; 44, locking member; 45, second elastic member. DETAILED DESCRIPTION

[0029] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of the present application.

[0030] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices.

[0031] According to the embodiments of the present application, a safety belt adjusting device is provided.

[0032] Specifically, as shown in Figure 1 , Figure 2 , Figures 5 to 7 , the safety belt adjusting device comprises a mounting base 10, an adjusting assembly, a sensor assembly and a control unit, at least one limiting groove 11 and at least one first gear rack 12 are formed on the mounting base 10, at least part of the limiting grooves 11 are arranged along the length direction of the vehicle body, and at least part of the first gear racks 12 are arranged along the length direction of the vehicle body; the adjusting assembly comprises an adjusting slider 20, a first gear wheel 21 and a first motor 22, one side of the adjusting slider 20 is connected with the mounting base 10, the other side of the adjusting slider 20 is connected with the safety belt, the adjusting slider 20 is slidably arranged in the limiting groove 11, the first gear wheel 21 is engaged with the first gear rack 12, and the output end of the first motor 22 is connected with the first gear wheel 21, the first motor 22 is used to drive the first gear wheel 21 to rotate, so as to drive the adjusting slider 20 to move along the length direction of the vehicle body; the sensor assembly is arranged on at least one of the safety belt and the vehicle seat, and is used to detect the stress of the safety belt and the vehicle seat; the control unit is electrically connected with the sensor assembly and the first motor 22 for control.

[0033] By applying the technical solution of the embodiment, the mounting base 10 is provided with a limiting groove 11 and a first gear rack 12 extending along the length direction of the vehicle body, the adjusting sliding block 20 can slide along the length direction of the limiting groove 11, the first gear 21 is engaged with the first gear rack 12, the first motor 22 drives the first gear 21 to cooperate with the first gear rack 12, and the adjusting sliding block 20 can be driven to move along the length direction of the vehicle body, that is, the direction of the gear and the gear rack cooperation. Since one side of the adjusting sliding block 20 is connected with the safety belt, the safety belt can be driven to move along the length direction of the vehicle body in the process of moving of the adjusting sliding block 20, and the function of the safety belt being adjustable along the length direction of the vehicle body is realized. Meanwhile, the safety belt adjusting device further comprises a sensor assembly and a control unit. The force conditions of the vehicle seat and the safety belt are detected in real time by the sensor assembly, the pose information between the passenger and the safety belt can be obtained, whether the current safety belt is in the best body feeling position of the passenger is calculated by the control unit, then the first motor 22 can be controlled to drive the adjusting sliding block 20 to move along the length direction of the vehicle body, and the intelligent adaptive adjustment of the safety belt along the length direction of the vehicle body is realized.

[0034] It should be noted that the control unit is used to analyze the data detected by the sensor assembly, and the adjusting sliding block 20 can be controlled to drive the safety belt to move and adjust the safety belt to the best position, so that the effect of safely restraining the passenger in the vehicle collision can be achieved, and the problem of the safety belt causing neck accumulation or shoulder disengagement can be improved.

[0035] Specifically, as Figure 1As shown, a plurality of limiting holes 13 are also formed on the mounting base 10, and a matching hole 23 is formed on the adjusting slider 20, and the limiting pin 30 is arranged in the matching hole 23 and the limiting hole 13 to connect the matching hole 23 and the limiting hole 13, and the adjusting assembly further comprises a first electromagnetic block 24, the first electromagnetic block 24 is connected with the adjusting slider 20, the first electromagnetic block 24 is electrically connected with the control unit, the first electromagnetic block 24 is arranged on one side of the limiting pin 30, the limiting pin 30 has a first adsorption state of being adsorbed with the first electromagnetic block 24 to be located outside the limiting hole 13, and the limiting pin 30 has a limiting state of being separated from the first electromagnetic block 24 and arranged in the limiting hole 13, wherein when the limiting pin 30 is in the limiting state, the limiting pin 30 is arranged in the matching hole 23 and extends into the limiting hole 13, and when the limiting pin 30 is in the first adsorption state, the first electromagnetic block 24 adsorbs the limiting pin 30 to arrange the limiting pin 30 away from the limiting hole 13 and the matching hole 23, so that the adjusting slider 20 can slide along the length direction of the vehicle body relative to the mounting base 10. The plurality of limiting holes 13 on the mounting base 10 and the matching hole 23 on the adjusting slider 20 jointly constitute a positioning structure for the adjusting slider 20 to move along the length direction of the vehicle body, and the position state of the limiting pin 30 is adjusted by the first electromagnetic block 24, the limiting pin 30 serves as a physical limiter in a non-powered state, passes through the matching hole 23 of the adjusting slider 20 and the limiting hole 13 of the mounting base 10, and fixes the two together to prevent the slider from moving randomly without specific instructions, thereby keeping the safety belt in the current position and ensuring the safety of the occupant. When it is necessary to adjust the position of the safety belt, the control unit can control the first electromagnetic block 24 to be powered, and at this time the first electromagnetic block 24 generates a magnetic force to adsorb the limiting pin 30, so that the limiting pin 30 is pulled out of the limiting hole 13 in the current position and is in the first adsorption state, at this time the limiting pin 30 is adsorbed on the first electromagnetic block 24 by electromagnetic force and is kept a distance away from the matching hole 23 and the limiting hole 13, and no longer serves as a physical limiter, and at the same time the adjusting slider 20 can freely slide on the mounting base 10. The whole is unlocked by the power-on of the first electromagnetic block 24 and is self-locked by power-off, and the automatic adjustment of the position of the safety belt is realized, which can ensure the stability of the safety belt adjusting device in the unadjusted state, and at the same time can quickly respond when it is necessary to adjust and realize accurate positioning.

[0036] It should be noted that the plurality of limiting holes 13 are arranged along the length direction of the vehicle body, and the matching hole 23 is arranged on the adjusting slider 20, when the adjusting slider 20 slides, the limiting pin 30 and the matching hole 23 slide together, when the adjusting slider 20 moves to the appropriate position, the first electromagnetic block 24 is powered off to make the limiting pin 30 pass through the matching hole 23 and extend into the limiting hole 13 in the current position, and the current position is locked.

[0037] Further, the adjusting assembly further comprises a first elastic member 25, one end of the first elastic member 25 is connected with the limiting pin 30, the other end of the first elastic member 25 is connected with the first electromagnetic block 24, and the first elastic member 25 is arranged between the first electromagnetic block 24 and the limiting pin 30, wherein the limiting pin 30 is in the first adsorption state, and the first elastic member 25 is in a compressed state. The first elastic member 25 is arranged between the limiting pin 30 and the first electromagnetic block 24, and the first elastic member 25 is used for automatic resetting of the limiting pin 30 after the first electromagnetic block 24 is powered off, and the limiting pin 30 can be quickly and reliably pushed back into the limiting hole 13 when the first electromagnetic block 24 is powered off, so as to ensure that the seat belt position can be immediately locked once it is determined, preventing accidental movement; when the first electromagnetic block 24 is in the powered state, i.e. the limiting pin 30 is in the first adsorption state, the first elastic member 25 will be compressed, and when the first electromagnetic block 24 generates a magnetic force to attract the limiting pin 30, the limiting pin 30 will move towards the first electromagnetic block 24, extruding the first elastic member 25 and making it in a compressed energy storage state. The use of the first elastic member 25 not only ensures the quick resetting of the limiting pin 30, but also improves the positioning accuracy and the stability of the entire adjusting system, because it can compensate for any slight deviation of the limiting pin 30 during the resetting process, ensuring that each adjustment can be accurately and correctly completed.

[0038] In an embodiment of the present application, the first electromagnetic block 24 further comprises an elastic column, the elastic column extends towards the side where the limiting hole 13 is located, the first elastic member 25 is a spring member, and the first elastic member 25 extends along the circumference of the elastic column, the elastic column is used for guiding the first elastic member 25, the first elastic member 25 contracts along the extension direction of the elastic column when the first electromagnetic block 24 is powered on, and the first elastic member 25 releases along the extension direction of the elastic column when the first electromagnetic block 24 is powered off, the elastic column can ensure the movement direction of the first elastic member 25, and thus can ensure that the limiting pin 30 accurately extends into the limiting hole 13, improving the positioning accuracy.

[0039] Further, as shown in FIG. 1, Figure 1 , Figure 2 , Figure 4 , Figure 7As shown, the adjusting slider 20 is provided with at least one second rack 26, which extends along the height direction of the vehicle body. The seat belt adjusting device also includes an adjusting seat 40, which is slidably connected to the adjusting slider 20 along the height direction of the vehicle body. The adjusting seat 40 is located on the side of the adjusting slider 20 away from the mounting base 10. The adjusting seat 40 is connected to the seat belt. The adjusting seat 40 includes a second gear 41 and a second motor 42. The second gear 41 meshes with the second rack 26. The output end of the second motor 42 is connected to the second gear 41. The second motor 42 is used to drive the second gear 41 to rotate, thereby driving the adjusting seat 40 to move along the height direction of the vehicle body. The second motor 42 is electrically connected to the control unit. The adjusting slider 20 has at least one second rack 26 extending along the height direction of the vehicle body. The adjusting seat 40 meshes with the second rack 26 via a second gear 41, forming a rack and pinion transmission system. The rotation of the second gear 41 drives the adjusting seat 40 to slide up and down along the second rack 26, thereby adjusting the height of the seat belt. The output of the second motor 42 is connected to the second gear 41. By controlling the forward and reverse rotation of the second motor 42, the second gear 41 can be driven to rotate, further driving the adjusting seat 40 to move up and down along the height direction of the vehicle body. After receiving signals from the seat weight sensor or webbing force sensor, the control unit not only controls the power supply to the first electromagnetic block 24 to move the adjusting slider 20 along the length direction of the vehicle body, but also controls the working state of the second motor 42 to drive the adjusting seat 40 to move along the height direction of the vehicle body, thus linking with the lateral adjustment to ensure that the seat belt position can be adaptively adjusted to the optimal state in both the longitudinal and lateral directions. The adjustment seat 40, through the cooperation of the second rack 26, the second gear 41, and the second motor 42, enables the seat belt adjuster to fully adapt to the needs of occupants of different body types, automatically perform precise longitudinal and lateral adjustments, improve the comfort and safety of seat belt use, and further enhance the vehicle's intelligent and humanized characteristics. The lateral and longitudinal linkage adjustment mechanism not only improves the efficiency of adjustment but also ensures the accuracy and reliability of adjustment.

[0040] Specifically, such as Figure 3 , Figure 7As shown, the side wall of the adjusting slider 20 is provided with a plurality of locking grooves 27. The adjusting seat 40 is provided with a second electromagnetic block 43 and a locking member 44. The locking member 44 is connected to the locking groove 27. The second electromagnetic block 43 is electrically connected to the control unit. The locking member 44 has a second adsorption state in which it is attracted to the second electromagnetic block 43 and located outside the locking groove 27. The locking member 44 also has a locking state in which it is separated from the second electromagnetic block 43 and passes through the locking groove 27. When the locking member 44 is in the locking state, at least a portion of the locking member 44 extends into the locking groove 27. When the locking member 44 is in the second adsorption state, the second electromagnetic block 43 attracts the locking member 44 so that the locking member 44 is positioned at a distance from the locking groove 27, so that the adjusting seat 40 can slide relative to the adjusting slider 20 along the height direction of the vehicle body. When the locking member 44 is in the locked state, it is at least partially inserted into the locking groove 27 on the side wall of the adjusting slider 20, thereby fixing the adjusting seat 40 at the current height position. When the second electromagnetic block 43 is energized, the locking member 44 will be attracted to the vicinity of the electromagnetic block, that is, it enters the second attraction state. At this time, the locking member 44 is disengaged from the locking groove 27 and no longer plays a fixing role on the adjusting seat 40, allowing the adjusting seat 40 to move along the vehicle height direction under the drive of the second motor 42.

[0041] In this embodiment, when adjusting the seat belt height, the control unit sends an energizing signal to the second electromagnetic block 43, generating a magnetic force to attract the locking member 44, causing it to move to the side of the second electromagnetic block 43 and separate from the locking groove 27. The adjusting seat 40 is thus unlocked and can be moved up and down by the second motor 42 via the transmission system of the second gear 41 and the second rack 26. When the adjusting seat 40 moves to the predetermined new height position, the control unit disconnects the current to the second electromagnetic block 43, the magnetic force disappears, and the locking member 44 re-inserts into the locking groove 27, entering the locking state and locking the adjusting seat 40 at the new height position, ensuring the stability of the seat belt and the safety of the occupant.

[0042] Furthermore, the adjusting seat 40 also includes a second elastic member 45. One end of the second elastic member 45 is connected to the locking member 44, and the other end of the second elastic member 45 is connected to the second electromagnetic block 43. The second elastic member 45 is disposed between the locking member 44 and the second electromagnetic block 43. When the locking member 44 is in the second adsorption state, the second elastic member 45 is in the compression state. A second elastic element 45 is also provided between the locking member 44 and the second electromagnetic block 43. The second elastic element 45 is used to automatically reset the locking member 44 after the second electromagnetic block 43 is de-energized, so that the locking member 44 can be pushed back into the locking groove 27 quickly and reliably when the second electromagnetic block 43 is de-energized, thereby ensuring that the seat belt can be locked immediately once the position is determined to prevent accidental movement. When the second electromagnetic block 43 is energized, that is, when the locking member 44 is in the second adsorption state, the second elastic element 45 will be compressed. When the second electromagnetic block 43 generates magnetic force to attract the locking member 44, the locking member 44 will move towards the second electromagnetic block 43, squeezing the second elastic element 45, so that the second elastic element 45 is in an energy storage state. The presence of the second elastic element 45 not only accelerates the reset speed of the locking element 44 and reduces the delay in the adjustment process, but also ensures that in case of emergency or power failure, even if the electromagnetic adsorption fails, the second elastic element 45 can rely on its mechanical properties to push the locking element 44 into the locking state, ensuring that the adjustment seat 40 will not move unexpectedly due to gravity or external impact, thereby ensuring the safety of the occupants.

[0043] In this embodiment, through the coordinated operation of the second elastic element 45, the locking element 44, and the second electromagnetic block 43, the adaptive electric adjuster adds automatic height adjustment and locking capabilities to the seat belt's longitudinal adjustment, making the seat belt adjustment more precise, rapid, and safe, further enhancing the occupant's comfort and safety.

[0044] According to another specific embodiment of this application, a vehicle is provided, which has a seat belt adjustment device, the same as the seat belt adjustment device described in the above embodiment. Integrating the above-described seat belt adjustment device into the vehicle improves the vehicle's safety and comfort. Through communication between the vehicle's electronic control system and the sensor components and control unit of the seat belt adjustment device, automated control of the seat belt adjustment device is achieved, enabling the vehicle to automatically adjust the position of the seat belt according to the passenger's body shape and the force applied to the seat belt, thereby improving passenger safety and wearing comfort.

[0045] According to another specific embodiment of this application, a seat belt adjustment method is also provided. The method uses the seat belt adjustment device described in the above embodiment for adjustment, and includes:

[0046] Step S10: Obtain basic information of the target object and force information of the seat belt. The basic information includes at least the weight information and shape information of the target object.

[0047] Specifically, the weight information of the target object mainly refers to the magnitude and direction of the pressure exerted by the target object on the vehicle seat; the body information mainly refers to the body size and shape of the target object, such as confirming the size and shape of the seat belt restraint parts such as the shoulders and neck of the target object, so that the control unit can make appropriate adjustments to the seat belt.

[0048] In step S10, the force information of the seat belt is obtained by monitoring the pressure or tension applied by the safety belt members in real time through devices such as seat belt force sensors. The force information on the seat belt can determine whether the current state of the seat belt is tight or loose.

[0049] Step S20: Based on the basic information and the seat belt force information, an adjustment instruction set is generated. The adjustment instruction set is used to control the movement of the adjustment slider along the length direction of the vehicle body and the height direction of the vehicle body.

[0050] Specifically, basic information and seat belt force information are collected through sensor components. After the control unit analyzes and processes the above information, it uses the algorithm built into the control unit to calculate whether the current force value and position of the seat belt are suitable for the current state of the target object. By generating an adjustment command set, the seat belt is adjusted to move along the length or height of the vehicle to adjust the seat belt to the optimal position to adapt to the target object.

[0051] Through the above steps, basic information about the target object and the seat belt force information are obtained. The basic information includes at least the target object's weight and body shape. Based on this basic information and seat belt force information, an adjustment command set is generated. This set controls the movement of the adjustment slider along the length and height of the vehicle body. By collecting the target object's weight and body shape data, combined with the actual force on the seat belt, adaptive adjustment of the seat belt position is achieved. The vehicle's electronic control system analyzes the target object data and seat belt force information to generate a corresponding adjustment command set, controlling the seat belt adjustment device to automatically adjust its position according to different target objects and driving conditions, ensuring optimal protection and wearing comfort.

[0052] Optionally, in step S20, an adjustment instruction set is generated based on the basic information and the seat belt force information, including:

[0053] Step S21: Calculate the percentile body size of the target object based on the basic information;

[0054] Specifically, in ergonomics, percentiles are a method used to describe the size ranking of an individual within a specific population. For example, the 0.5 percentile means that only 5% of the population is smaller than the target, while most people are larger. Similarly, the 50th and 95th percentiles refer to the positions in the population where the size is at the average and only 5% of the population is larger than the target, respectively.

[0055] In step S21, an existing statistical model is established or used to evaluate the body size percentile of the target object. These models are often built based on body size data of a large number of people and can map the input individual feature parameters to the corresponding percentile body size. The model calculates the percentile body size of the occupant based on the input basic information.

[0056] Step S22: If it is determined that the percentile body shape does not meet the first preset condition, a longitudinal adjustment command is generated in the adjustment command set. The longitudinal adjustment command is used to control the adjustment seat to move along the height direction of the vehicle body until the percentile body shape meets the first preset condition.

[0057] Specifically, the first preset condition is a pre-set threshold condition. After the system calculates the percentile body size of the target object, it is compared with the first preset condition. For example, for children or adults with a body size of 0.5 percentile, the shoulder position of the seat belt should be set higher to avoid strangling the neck; for more robust adults or adults with a body size of 9.5 percentile, the seat belt may need to be adjusted lower to ensure that it crosses the shoulders and chest securely without slipping off.

[0058] In step S22, if the system detects a deviation between the occupant's percentile body size and the first preset condition, such as the seatbelt being too high or too low (possibly because the seatbelt has not been properly adjusted), the system will generate a longitudinal adjustment command, instructing the adjustment seat to move along the vehicle height direction to change the seatbelt's height position. Once the occupant's percentile body size is adjusted to a safe range that meets the first preset condition, the system will immediately stop the longitudinal motor to avoid over-adjustment.

[0059] Optionally, in step S20, an adjustment command set is generated based on the body shape information and the seat belt force information, including:

[0060] Step S23: Based on the seat belt force information, determine the seat belt force condition;

[0061] Specifically, first, the system needs to determine the baseline force value of the seat belt in a static state, that is, the minimum force value that the seat belt should bear when the car is stationary and the occupants are seated normally. The system will continuously compare the real-time force value with the baseline force value and observe the changes in force value with occupant movement, car acceleration and deceleration, turning and other conditions. For example, the force on the seat belt may increase significantly during emergency braking, while the force is relatively stable during smooth driving.

[0062] Step S24: If it is determined that the force on the seat belt does not meet the second preset condition, a lateral adjustment command is generated in the adjustment command set. The lateral adjustment command is used to control the adjustment slider to move along the length of the vehicle body until the force on the seat belt meets the second preset condition.

[0063] Specifically, the second preset condition is a pre-set seatbelt force threshold value. This threshold value represents the minimum and maximum force range necessary for the seatbelt to ensure both occupant safety and provide a comfortable experience under normal driving conditions. The system monitors the seatbelt force value in real time to ensure it meets the second preset condition. If it does not, the control unit generates a lateral adjustment command, instructing the lateral motor to drive the lateral drive gear to rotate, thereby pushing the adjustment slider to move along the length of the vehicle body, changing the lateral position of the seatbelt. Once the seatbelt force reaches the ideal state, the lateral motor stops working, and the adjustment slider is locked in its current position by the action of the limit pin and the first elastic element.

[0064] Through steps S23-S24, via a closed-loop adjustment mechanism, the adaptive electric adjuster of the car seat belt can automatically adjust the lateral position of the seat belt according to the real-time seat belt force information, ensuring that the seat belt can provide safe and comfortable restraint for the occupants under any driving conditions, thereby enhancing the passive safety performance of the vehicle.

[0065] This application also provides a preferred embodiment of a seat belt adjustment device and its control method, which can adaptively and electrically adjust the height position according to the occupant's body size, and can adaptively and electrically adjust the front and rear position according to the magnitude of the webbing force. It can not only adjust the height but also adjust the front and rear, and no manual adjustment is required throughout the process, resulting in a better experience and a stronger sense of technology.

[0066] Specifically, such as Figure 1 As shown, the seat belt adjustment device includes a mounting base 10, a limiting groove 11, a first rack 12, a limiting hole 13, an adjusting slider 20, a first gear 21, a first motor 22, a mating hole 23, a first electromagnetic block 24, a first elastic element 25, a second rack 26, a locking groove 27, a limiting pin 30, an adjusting seat 40, a second gear 41, a second motor 42, a second electromagnetic block 43, a locking element 44, and a second elastic element 45. The adjusting slider 20 is connected to the limiting groove 11. The adjusting slider 20 can only move along the length of the vehicle body relative to the mounting base 10. The first electromagnetic block 24, the limiting pin 30, and the first elastic element 25 are connected to the adjusting slider 20. The first electromagnetic block 24 is fixed relative to the adjusting slider 20. The adjusting seat 40, the second elastic element 45, and the locking element 44 are connected to the adjusting slider 20. The adjusting seat 40 can only move along the height of the vehicle body relative to the adjusting slider 20. The first motor 22 and the second motor 42 are set in the motor groove to drive the gear to rotate. The gear and rack work together to drive the adjusting slider 20 and the adjusting seat 40 to move.

[0067] The limiting pin 30 can only move along the length of the vehicle body. One end of the first elastic element 25 is set on the elastic post of the first electromagnetic block 24, and the other end is fixed to the limiting pin 30. In its natural state, the limiting pin 30 is compressed and inserted into the limiting hole 13 by the first elastic element 25. At this time, the adjusting slider 20 cannot move relative to the mounting base 10. When the first electromagnetic block 24 is energized, it generates a magnetic force that attracts the limiting pin 30. The limiting pin 30 is released from the locking of the limiting hole 13, allowing the adjusting slider 20 to move relative to the mounting base 10 along the length of the vehicle body. Similarly, the locking element 44 is compressed and inserted into the locking groove 27 by the second elastic element 45. When the second electromagnetic block 43 is energized, it generates a magnetic force that attracts the locking element 44. The locking element 44 is released from the restriction of the locking groove 27, allowing the adjusting seat 40 to move relative to the adjusting slider 20 along the height of the vehicle body.

[0068] Once the occupant is seated, the sensor on the left wing detects whether the occupant is the 05th percentile, 50th percentile, or 95th percentile body type. The 05th percentile corresponds to the highest setting of the regulator, the 50th percentile to the middle setting, and the 95th percentile to the lowest setting. For example, when an occupant with a 05th percentile body type sits down, current flows through the second electromagnetic block 43 and the second motor 42, unlocking the locking member 44 from the locking groove 27. The second motor 42 drives the second gear 41 to rotate, causing the adjusting seat 40 to move along the vehicle height direction. When the locking member 44 moves to the highest setting, the second... The locking element 44 at the endpoints of motor 42 and the second electromagnetic block 43 falls into the highest-grade locking groove 27 and locks. The webbing off-duty sensor detects the force on the webbing. When the force is too large, the adjusting slider 20 moves forward; when the force is too small, the adjusting slider 20 moves backward. For example, when the webbing force sensor detects a large force, current is supplied to the first electromagnetic block 24 and the first motor 22, the limit pin 30 is unlocked, the first motor 22 drives the first gear 21 to rotate, and drives the adjusting slider 20 to move in the forward direction. When the force is appropriate, the first motor 22 and the first electromagnetic block 24 are de-energized, and the limit pin 30 falls into the appropriate limit hole 13. This achieves adaptive longitudinal and lateral adjustment.

[0069] In one exemplary embodiment of this application, the control unit displays the seatbelt status via the vehicle's display system. If the user wishes to continue adjusting to achieve optimal comfort, they can control its position using virtual controls (soft switches) on the central infotainment screen, enabling personalized and precise adjustments. For example, the infotainment screen can be accessed via a swipe-down / side-swipe shortcut menu from the top or side of the screen, using two simple touch icons, one with a left arrow and the other with a right arrow, which can be long-pressed or tapped repeatedly for adjustment. Alternatively, the user can find "Vehicle Settings" - "Seat and Comfort" or a similar entry in the main menu, and quickly adjust the left and right positions by dragging a virtual horizontal slider. A diagram of the seatbelt and seat can be displayed next to it, showing the adjustment effect in real time. Voice control is also possible; the user can pre-input "Hello XX, adjust the seatbelt to the left," "Move the seatbelt a little to the left," or "Restore the seatbelt to the default position" into the control system. Alternatively, the settings can be linked to the seat memory function through memory and personalized configuration. When a user selects the "Driver 1" profile, the system will automatically adjust the seatbelt adjuster, seat, steering wheel, rearview mirror, etc. to the preset positions, achieving a truly "one-click" personalized experience.

[0070] Its specific architecture and control logic are as follows:

[0071] Position sensors are used to detect the position of the seatbelt adjuster in real time, enabling closed-loop control. The body control module / seat control module receives instructions from the infotainment system host and drives the motor. The infotainment system host provides the UI and user interaction logic. Communication between the infotainment system host and the body control module typically occurs via CAN bus or Ethernet. When the user triggers an operation on the UI, the infotainment system application layer generates control commands, which are sent to the corresponding control module via the vehicle network. The control module drives the motor in both forward and reverse directions, while simultaneously reading position sensor data. The motor stops when the target position is reached or the user stops operating, and visual feedback is provided on the UI of the infotainment screen. If excessive resistance is encountered during adjustment (simulating a hand or object being pinched), the system should immediately stop and reverse a short distance. Upper and lower limit positions should be set in the software to prevent hardware impact damage. The system should be able to detect faults such as motor stall and sensor malfunction, and display prompts to the user on the infotainment screen.

[0072] As can be seen from the above description, the seat belt adjustment device and its control method in the above embodiments have the following beneficial effects:

[0073] 1) Greatly enhances the simplicity and technological atmosphere of the interior.

[0074] 2) The user experience is consistent with the unified entry point for seat and steering wheel adjustments.

[0075] 3) It allows for more precise adjustments and is linked to user profiles.

[0076] 4) The height and position can be electrically adjusted according to the size of the occupants. The front and back positions can be electrically adjusted according to the force of the webbing. Not only can the height be adjusted, but the front and back can also be adjusted. The whole process does not require manual adjustment, which makes the experience better and the technology more advanced.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0079] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A seatbelt adjustment device, characterized in that, include: Mounting base (10), the mounting base (10) is provided with at least one limiting groove (11) and at least one first rack (12), at least a portion of the limiting groove (11) extends along the length direction of the vehicle body, and at least a portion of the first rack (12) extends along the length direction of the vehicle body; The adjustment assembly includes an adjustment slider (20), a first gear (21), and a first motor (22). One side of the adjustment slider (20) is connected to the mounting base (10), and the other side of the adjustment slider (20) is connected to the seat belt. The adjustment slider (20) is slidably disposed in the limiting groove (11). The first gear (21) meshes with the first rack (12). The output end of the first motor (22) is connected to the first gear (21). The first motor (22) is used to drive the first gear (21) to rotate, so as to drive the adjustment slider (20) to move along the length direction of the vehicle body. A sensor assembly is disposed on at least one of the seat belt and the vehicle seat, and the sensor assembly is used to detect the force on the seat belt and the vehicle seat; The control unit is electrically connected to the sensor assembly and the first motor (22).

2. The seat belt adjustment device according to claim 1, characterized in that, The mounting base (10) is also provided with a plurality of limiting holes (13), and the adjusting slider (20) is provided with a mating hole (23). A limiting pin (30) passes through the mating hole (23) and the limiting hole (13) to connect the mating hole (23) and the limiting hole (13). The adjusting assembly also includes: The first electromagnetic block (24) is connected to the adjusting slider (20) and electrically connected to the control unit. The first electromagnetic block (24) is disposed on one side of the limiting pin (30). The limiting pin (30) has a first adsorption state in which it is attracted to the first electromagnetic block (24) by electricity and located outside the limiting hole (13). The limiting pin (30) also has a limiting state in which it is separated from the first electromagnetic block (24) and passes through the limiting hole (13). In the state where the limiting pin (30) is in the limiting state, the limiting pin (30) passes through the mating hole (23) and extends into the limiting hole (13). When the limiting pin (30) is in the first adsorption state, the first electromagnetic block (24) adsorbs the limiting pin (30) so that the limiting pin (30) is set at a distance from the limiting hole (13) and the mating hole (23), so that the adjusting slider (20) can slide relative to the mounting base (10) along the length direction of the vehicle body.

3. The seat belt adjustment device according to claim 2, characterized in that, The adjustment component further includes a first elastic element (25), one end of which is connected to the limiting pin (30), and the other end of which is connected to the first electromagnetic block (24). The first elastic element (25) is disposed between the first electromagnetic block (24) and the limiting pin (30). When the limiting pin (30) is in the first adsorption state, the first elastic element (25) is in the compression state.

4. The seat belt adjusting device according to any one of claims 1-3, characterized in that, The adjusting slider (20) is provided with at least one second rack (26), the second rack (26) extending along the height direction of the vehicle body, and the seat belt adjusting device further includes: An adjustment seat (40) is slidably connected to the adjustment slider (20) along the height direction of the vehicle body. The adjustment seat (40) is located on the side of the adjustment slider (20) away from the mounting base (10). The adjustment seat (40) is connected to the seat belt. The adjustment seat (40) includes a second gear (41) and a second motor (42). The second gear (41) meshes with the second rack (26). The output end of the second motor (42) is connected to the second gear (41). The second motor (42) is used to drive the second gear (41) to rotate, thereby driving the adjustment seat (40) to move along the height direction of the vehicle body. The second motor (42) is electrically connected to the control unit.

5. The seat belt adjusting device according to claim 4, characterized in that, The adjusting slider (20) has multiple locking grooves (27) on its side wall. The adjusting seat (40) is provided with a second electromagnetic block (43) and a locking member (44). The locking member (44) is connected to the locking grooves (27). The second electromagnetic block (43) is electrically connected to the control unit. The locking member (44) has a second adsorption state in which it is attracted to the second electromagnetic block (43) by electricity and located outside the locking grooves (27). The locking member (44) also has a separation state from the second electromagnetic block (43). The locking state is provided in the locking groove (27), wherein when the locking member (44) is in the locking state, at least a portion of the locking member (44) extends into the locking groove (27), and when the locking member (44) is in the second adsorption state, the second electromagnetic block (43) adsorbs the locking member (44) so ​​that the locking member (44) and the locking groove (27) are set at a distance, so that the adjusting seat (40) can slide relative to the adjusting slider (20) along the height direction of the vehicle body.

6. The seat belt adjusting device according to claim 5, characterized in that, The adjusting seat (40) further includes a second elastic element (45), one end of which is connected to the locking element (44), and the other end of which is connected to the second electromagnetic block (43). The second elastic element (45) is disposed between the locking element (44) and the second electromagnetic block (43). When the locking element (44) is in the second adsorption state, the second elastic element (45) is in the compression state.

7. A vehicle, characterized in that, The vehicle has a seat belt adjustment device, which is the seat belt adjustment device according to any one of claims 1-6.

8. A method for adjusting a seatbelt, characterized in that, The method employs the seatbelt adjustment device according to any one of claims 1-6 for adjustment, and the method includes: Acquire basic information about the target object and the force information of the seat belt, wherein the basic information includes at least the weight information and shape information of the target object; Based on the basic information and the seat belt force information, an adjustment instruction set is generated. The adjustment instruction set is used to control the adjustment slider to move along the length direction of the vehicle body and the height direction of the vehicle body.

9. The method according to claim 8, characterized in that, Based on the aforementioned basic information and the seatbelt force information, an adjustment instruction set is generated, including: Based on the aforementioned basic information, the percentile body size of the target object is calculated; If it is determined that the percentile body shape does not meet the first preset condition, a longitudinal adjustment instruction is generated in the adjustment instruction set. The longitudinal adjustment instruction is used to control the adjustment seat to move along the height direction of the vehicle body until the percentile body shape meets the first preset condition.

10. The method according to claim 8, characterized in that, Based on the shape information and the seat belt force information, an adjustment instruction set is generated, including: Based on the force information of the seat belt, determine the force condition of the seat belt; If it is determined that the force on the seat belt does not meet the second preset condition, a lateral adjustment command is generated in the adjustment command set. The lateral adjustment command is used to control the adjustment slider to move along the length of the vehicle body until the force on the seat belt meets the second preset condition.

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