Liftable safety belt lock catch and control method thereof

Abstract

The invention discloses a liftable safety belt lock catch and a control method thereof. The liftable safety belt lock catch comprises a lock catch body used for being connected with a fastener in an inserted mode, a lifting mechanism used for changing the horizontal height of the lock catch body, a driving mechanism used for driving the lifting mechanism to ascend or descend and a connecting base used for being fixedly connected with a seat, and the lock catch body, the lifting mechanism, the driving mechanism and the connecting base are sequentially connected from top to bottom. A buffering assembly used for buffering tension or pressure for the lock catch body is arranged in the lifting mechanism. The liftable safety belt lock catch can actively ascend and descend to adapt to different application scenes, the safety belt lock catch can descend to avoid passengers when insertion operation is not needed, and the safety belt lock catch ascends to ensure the convenience of the insertion operation when the insertion operation is needed; therefore, the comfort and the safety of passengers in the vehicle are obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle safety belts, and in particular to a liftable safety belt buckle and a control method thereof. Background Art

[0002] The seat belt buckle is generally fixed under the seat position. In the prior art, the connection methods of the seat belt buckle generally include webbing type, steel cable type and steel plate type. The length and height of these three types of seat belt buckles are fixed, which has the following obvious shortcomings:

[0003] 1. In the webbing connection, since the webbing is soft, lacks fixed support and has no fulcrum, it is inconvenient for passengers to plug in. At the same time, the lock head is easy to sink into the seat hole, making it difficult to find. If it is placed on the seat surface, it is easy to affect the riding experience and make the seat surface messy, affecting the appearance.

[0004] 2. In the steel cable / steel plate connection, both are hard support connection methods, and the seat cushion is soft, which will collapse when the occupant sits down. If the collapse of the seat is considered in advance, the height of the seat belt buckle will be too low, sinking into the seat, making it inconvenient to buckle and plug in. If the height of the seat belt buckle is too high, it will cause obstacles when the occupant sits down, causing discomfort to the occupant. At the same time, the fixed height seat belt buckle cannot accommodate the difference in the degree of seat collapse when wearing it for occupants of different body shapes. When the occupant changes seats or moves horizontally on the seat after getting on the car, the seat belt buckle will cause obvious discomfort.

[0005] Moreover, the above-mentioned seat belt buckle only plays a simple limiting and fixing function, and has a single function. Therefore, it is necessary to design a seat belt buckle that can improve the comfort of passengers and provide more functions. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a liftable seat belt buckle and a control method thereof that can adjust the height to improve the riding comfort of the occupants. The liftable seat belt buckle is provided with a driving mechanism and a lifting mechanism, so that the buckle body can be actively raised or lowered according to the requirements of the use scenario and the changes in the occupants. When no operation is required, the buckle body can sink into the seat, which can not only keep the seat beautiful but also improve the comfort of the seat. In addition, a buffer component is provided in the lifting mechanism, so that the seat belt buckle can provide a certain buffer when encountering sudden force. In conjunction with the active lifting function of the lifting mechanism, it can be adapted to improve the use of occupants of different body shapes, and can also eliminate the gap in wearing the seat belt and actively tighten to protect the occupants, etc., thereby improving the comfort and safety of the occupants when wearing the seat belt.

[0007] The technical solution of the present invention provides a liftable safety belt buckle, comprising a buckle body for inserting a buckle, a lifting mechanism for changing the horizontal height of the buckle body, a driving mechanism for driving the lifting mechanism to rise or fall, and a connecting base for fixedly connecting with a seat, which are connected in sequence from top to bottom;

[0008] The lifting mechanism is provided with a buffer component for buffering tension or pressure for the lock body.

[0009] In one of the optional technical solutions, the lifting mechanism includes a fixed component, a movable component capable of moving up and down relative to the fixed component, a traction component for transmitting power to the movable component, and a buffer component;

[0010] The lower end of the fixed component is connected to the driving mechanism; the upper end of the movable component is connected to the locking body, and the lower end is movably connected to the fixed component; the upper end of the traction component is connected to the movable component, and the lower end is connected to the driving mechanism; the upper end of the buffer component is connected to the movable component, and the lower end is connected to the fixed component.

[0011] In one of the optional technical solutions, the movable component includes a slider, and the fixed component includes a connecting bracket and a connecting plate connected to the lower end of the connecting bracket;

[0012] The connecting bracket is provided with a guide groove and a limit groove, and the slider is provided with a guide portion embedded in the guide groove for guiding the moving path of the slider and a limit portion embedded in the limit groove for limiting the position of the slider.

[0013] In one of the optional technical solutions, the traction assembly includes a traction rope, and the buffer assembly includes an elastic member and an auxiliary buffer member;

[0014] The lower end of the elastic member is fixedly connected to the connecting plate, the upper end of the elastic member is fixedly connected to the lower end of the sliding block, and the auxiliary buffer member is arranged in the middle of the traction rope.

[0015] In one of the optional technical solutions, the driving mechanism includes a driving motor, a reduction gear set, a screw transmission member, a screw connector and a guide assembly connected in sequence, and the guide assembly is connected to the lifting mechanism to achieve power guidance.

[0016] The technical solution of the present invention provides a control method for any of the aforementioned liftable seat belt buckles, comprising:

[0017] Obtain vehicle operation information, seat load information, lock plug-in information and buffer component deformation information;

[0018] Determining an operation mode of the seat belt buckle according to the vehicle operation information, the seat load-bearing information, the buckle plugging information and the buffer component deformation information;

[0019] According to the operation mode of the seat belt buckle, the lifting mechanism is controlled to adjust the horizontal height of the buckle body, and the driving force direction and driving force size of the driving mechanism are adjusted.

[0020] In one of the optional technical solutions, the vehicle operation information includes engine information, door opening and closing information, vehicle speed information, acceleration information, pedal travel information, AEB information and collision information.

[0021] In one of the optional technical solutions, determining the operating mode of the seat belt buckle according to the vehicle operation information, the seat load-bearing information, the buckle plugging information and the buffer component deformation information includes:

[0022] Analyze according to the vehicle operation information, the seat load-bearing information, the lock plugging information and the buffer component deformation information;

[0023] If the vehicle is started for the first time, make sure the seat belt buckle is in the initial setting mode;

[0024] If the engine is on, the doors are closed, there are occupants in the seats and the seat belt buckles are not engaged, determine that the seat belt buckles are in the welcome mode;

[0025] If there is an occupant in the seat and the seat belt buckle is engaged, determine that the seat belt buckle is in the donning mode;

[0026] If the engine is stopped and the door is open, make sure the seat belt buckle is in the delivery mode;

[0027] If at least one of the vehicle speed information, acceleration information, pedal travel information, AEB information and cushioning component deformation information exceeds a safe range, it is determined that the seat belt buckle is in emergency mode;

[0028] If collision information is obtained, it is determined that the seat belt buckle is in collision mode;

[0029] If a preset time has passed after the collision mode is triggered and a pulling force of the occupant leaning forward is received, it is determined that the seat belt buckle is in the post-collision mode.

[0030] In one of the optional technical solutions, according to the operation mode of the seat belt buckle, controlling the lifting mechanism to adjust the horizontal height of the buckle body and adjusting the driving force direction and driving force magnitude of the driving mechanism includes:

[0031] In the initial setting mode, the control driving mechanism adjusts the upper end surface of the lock body to be flush with the cushion surface of the seat, sets the initial height of the lock body, and sets the parameters of the buffer assembly and the lifting mechanism;

[0032] In the welcoming mode, the lifting mechanism is controlled to rise by the driving mechanism, so that the lock body rises to a first preset height;

[0033] In the wearing mode, the driving mechanism controls the lifting mechanism to descend, so that the buckle body applies a first preset pulling force downward to the safety belt to eliminate the wearing gap of the occupant;

[0034] In the guest delivery mode, the lifting mechanism is controlled to rise by the driving mechanism, so that the lock body rises to a second preset height;

[0035] In the emergency mode, the lifting mechanism is controlled to descend by the driving mechanism, so that the buckle body applies a second preset pulling force downward to the seat belt to restrict the sitting posture of the occupant;

[0036] In the collision mode, the driving mechanism operates at maximum power to lower the lifting mechanism and compress the buffer assembly to the limit, so that the buckle body applies maximum pulling force downward to the seat belt to lock the occupant on the seat;

[0037] In the post-collision mode, the driving mechanism controls the lifting mechanism to rise, or controls the buckle body to release the buckle, so that the seat belt is relaxed to release the occupant.

[0038] The technical solution of the present invention provides a vehicle, including a vehicle body, a main control module and a seat are provided in the vehicle body, and any of the aforementioned liftable seat belt buckles is provided on the seat. The main control module is communicatively connected with the liftable seat belt buckle, and any of the aforementioned control methods for the liftable seat belt buckle can be executed by running the main control module and the liftable seat belt buckle.

[0039] The above technical solution has the following beneficial effects:

[0040] The liftable seat belt buckle provided by the present invention comprises a buckle body, a lifting mechanism and a driving mechanism. By providing the driving mechanism and the lifting mechanism, the buckle body can be actively raised or lowered according to the use scenario requirements and the changes in the occupants. According to different application scenarios, the lifting mechanism can be controlled by the driving mechanism to drive the buckle body to rise or fall. When no operation is required, the buckle body can be driven to sink into the seat by the lifting mechanism, which can not only keep the seat beautiful, but also make the buckle body avoid the occupants to improve the comfort of the seat. When the occupants need to operate the seat belt buckle, the lifting mechanism can drive the buckle body to rise, so as to facilitate the occupants to operate the seat belt buckle.

[0041] On the other hand, a buffer component is provided in the lifting mechanism, so that the seat belt buckle can provide buffering and support when encountering sudden force. Combined with the active lifting function of the lifting mechanism, it can adapt to and raise occupants of different body shapes, eliminate the gap in wearing the seat belt, and actively tighten to protect the occupants, thereby improving the comfort and safety of the occupants when wearing the seat belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0043] Figure 1 A three-dimensional diagram of a liftable safety belt buckle provided by an embodiment of the present invention;

[0044] Figure 2 An exploded view of a liftable safety belt buckle provided by an embodiment of the present invention;

[0045] Figure 3 A partial structural diagram of a lifting mechanism provided in one embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the structure of a driving mechanism provided by an embodiment of the present invention;

[0047] Figure 5 A schematic diagram of a lock body in a descending state provided by an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of a lock body in an ascending state provided by an embodiment of the present invention;

[0049] Figure 7 A schematic diagram of a wearing state of a liftable safety belt buckle provided by an embodiment of the present invention;

[0050] Figure 8 A schematic diagram of a wearing state of a liftable safety belt buckle provided by an embodiment of the present invention;

[0051] Fig. 9 A schematic diagram of a tightened state of a safety belt provided by an embodiment of the present invention;

[0052] Fig.10 A schematic diagram of a seat belt in a loosened state provided by an embodiment of the present invention;

[0053] Fig.11 A schematic diagram of a support state of a liftable safety belt buckle provided by an embodiment of the present invention;

[0054] Fig.12 A schematic diagram of the forces acting on a liftable safety belt buckle in a supporting state provided by an embodiment of the present invention;

[0055] Fig.13 A flowchart of a control method for a liftable safety belt buckle provided by an embodiment of the present invention;

[0056] Fig.14 A hardware structure diagram of an electronic device provided in accordance with an embodiment of the present invention.

[0057] Reference numerals in the figures:

[0058] 1. Lock body;

[0059] 2. Lifting mechanism; 21. Fixing assembly; 211. Connecting bracket; 2111. Guide groove; 2112. Limiting groove; 212. Connecting plate; 22. Movable assembly; 221. Sliding block; 2211. Guide part; 2212. Limiting part; 23. Traction assembly; 231. Traction rope; 24. Buffer assembly; 241. Elastic member; 242. Auxiliary buffer member;

[0060] 3. Driving mechanism; 31. Driving motor; 32. Reduction gear set; 33. Screw transmission part; 34. Screw connecting part; 35. Guide assembly;

[0061] 4. Connect the base;

[0062] 5. Safety belt;

[0063] 6. Seat. DETAILED DESCRIPTION

[0064] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0065] In the present invention, unless otherwise clearly defined and limited, the term "fixed" and the like should be understood in a broad sense, for example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] like Figure 1-4A liftable safety belt buckle provided in one embodiment of the present invention comprises a buckle body 1 for inserting a fastener, a lifting mechanism 2 for changing the horizontal height of the buckle body 1, a driving mechanism 3 for driving the lifting mechanism 2 to rise or fall, and a connecting base 4 for being fixedly connected to a seat 6. The lifting mechanism 2 is provided with a buffering assembly 24 for buffering tension or pressure for the buckle body 1. The connecting base 4 is fixedly connected to the seat 6 by bolts, so that the lower end of the safety belt buckle is firmly fixedly connected to the seat 6.

[0067] Among them, the upper surface of the lock body 1 has an opening for connecting with the end of the safety belt 5. The fastener will be clamped after being inserted into the lock body 1. The lock body 1 is also provided with a button for releasing the clamping state of the buckle. The lifting mechanism 2 is a retractable structure. The upper end of the lifting mechanism 2 is connected to the lock body 1. As a preference, a hinge piece can be provided at the upper end of the lifting mechanism 2, so that the two ends of the hinge piece are respectively hinged to the lock body 1 and the lifting mechanism 2, so that the lock body 1 can rotate forward and backward to facilitate the occupant to adjust the insertion angle of the safety belt 5, and the upper end of the lifting mechanism 2 can rise or fall relative to the lower end to drive the lock body 1 connected to the lifting mechanism 2 to rise or fall, thereby adjusting the corresponding horizontal height after the upper surface of the lock body 1 moves up and down in different use stages. The driving mechanism 3 is a mechanism that can provide the lifting mechanism 2 with the power required for rising or falling, and plays the role of driving the lifting mechanism 2. Preferably, the driving mechanism 3 has a driving motor 31, and the amplitude, speed and strength of lifting are adjusted by controlling the rotation direction, rotation speed and rotation power of the driving motor 31. The torque is transmitted to the lifting mechanism 2 and converted into a thrust or pull in a single direction, so that the lifting mechanism 2 can rise or fall stably and accurately.

[0068] As an example in actual application scenarios, Figure 5 As shown, when the passenger does not sit on the seat 6, the lifting mechanism 2 can be set to an initial height according to the model of the seat 6 or the operator's input in advance through initialization settings, or the upper surface of the lock body 1 is made parallel to the cushion surface of the seat 6, so that the cushion surface of the seat 6 is neater and more beautiful. Figure 8 As shown, when the passenger sits on the seat 6, the seat 6 collapses. Due to the different weights of different passengers, the seat cushion surface of the seat 6 collapses to different degrees. By detecting the horizontal height of the seat cushion surface of the seat 6 and accurately controlling the lifting degree of the driving lifting mechanism 2, the upper surface of the lock body 1 can be accurately adjusted to be parallel to the seat cushion surface of the seat 6, ensuring that the lock body 1 will not protrude on the seat 6 during the passenger's sitting process, thereby facilitating the passenger to enter and exit the seat 6 or move between seats 6. Figure 6 and Figure 7As shown, when the occupant needs to operate the seat belt buckle to insert or remove the buckle on the seat belt 5, the driving mechanism 3 is started to make the lifting mechanism 2 drive the buckle body 1 to rise, so as to facilitate the occupant to operate the connection between the seat belt buckle and the seat belt 5.

[0069] After the occupant has finished wearing the safety belt 5, it is also possible to avoid the situation where the occupant's hip position changes and collides with the buckle body 1 when turning. Fig.11 and Fig.12 As shown, the setting of the buffer component 24 can provide certain support for the lock body 1. When the occupant sits on the lock body 1, there will be no local sinking that affects the occupant's experience, and the naturally pressed lock body 1 will not cause pain to the occupant.

[0070] On the other hand, when the occupant safety belt 5 is worn, Fig. 9 As shown, the driving mechanism 3 actively controls the buckle body 1 to descend, so that the safety belt 5 is tightened, so as to ensure that the wearing gap of the safety belt 5 can be eliminated for passengers of different body shapes, and cooperates with the buffer component 24 to avoid over-tightening the passenger, and provides the passenger with sufficient movement space through the stretching buffer distance of the buffer component 24, so as to ensure the comfort and safety of the safety belt 5. Fig.10 As shown, when the occupant leans forward, the driving mechanism 3 will be actively started after the deformation of the buffer assembly 24 reaches a certain degree.

[0071] In addition, when it is detected that the vehicle may be in danger, the driving mechanism 3 can also actively control the lifting mechanism 2 to drive the buckle body 1 to descend, actively pull the seat belt 5 downward to fit tightly against the occupant, temporarily improve the stability of the occupant on the seat 6, and thus protect the occupant's safety. Therefore, the present invention can significantly improve the comfort and safety of each occupant in the vehicle, and the seat belt buckle can provide multiple functions in accordance with different scenarios.

[0072] In the present invention, operations requiring data collection, data processing and command output, such as monitoring of the horizontal height of the seat cushion surface of the seat 6, controlling the drive mechanism 3 and monitoring the deformation of the buffer assembly 24, are all implemented by a main control module in the vehicle, such as an on-board computer or an electronic control unit in the vehicle.

[0073] In summary, the liftable seat belt buckle provided in the embodiment of the present invention comprises a buckle body 1, a lifting mechanism 2 and a driving mechanism 3. By providing the driving mechanism 3 and the lifting mechanism 2, the buckle body 1 can be actively raised or lowered according to the use scene requirements and the changes in the occupants.

[0074] According to different application scenarios, the driving mechanism 3 can control the lifting mechanism 2 to drive the buckle body 1 to rise or fall. When no operation is needed, the lifting mechanism 2 can drive the buckle body 1 to sink into the seat 6, which can not only keep the seat 6 beautiful, but also make the buckle body 1 avoid the occupant to improve the comfort of the seat 6. When the occupant needs to operate the seat belt buckle, the lifting mechanism 2 can drive the buckle body 1 to rise, so that the occupant can operate the seat belt buckle conveniently.

[0075] On the other hand, the embodiment of the present invention further provides a buffer component 24 in the lifting mechanism 2, so that the seat belt buckle can provide buffering and support when encountering sudden force. In conjunction with the active lifting function of the lifting mechanism 2, it can adapt to and raise occupants of different body shapes, and can also eliminate the wearing gap of the seat belt 5 and actively tighten to protect the occupants, thereby improving the comfort and safety of the occupants when wearing the seat belt 5.

[0076] In one embodiment, the lifting mechanism 2 includes a fixed component 21, a movable component 22 capable of moving up and down relative to the fixed component 21, a traction component 23 for transmitting power to the movable component 22, and a buffer component 24.

[0077] The lower end of the fixed component 21 is connected to the driving mechanism 3. The upper end of the movable component 22 is connected to the lock body 1, and the lower end is movably connected to the fixed component 21. The upper end of the traction component 23 is connected to the movable component 22, and the lower end is connected to the driving mechanism 3. The upper end of the buffer component 24 is connected to the movable component 22, and the lower end is connected to the fixed component 21.

[0078] Furthermore, if Figure 2 and Figure 3 As shown, the movable assembly 22 includes a slider 221, and the fixed assembly 21 includes a connecting bracket 211 and a connecting plate 212 connected to the lower end of the connecting bracket 211. The connecting bracket 211 is provided with a guide groove 2111 and a limiting groove 2112, and the slider 221 is provided with a guide portion 2211 embedded in the guide groove 2111 for guiding the moving path of the slider 221 and a limiting portion 2212 embedded in the limiting groove 2112 for limiting the position of the slider 221. The upper end of the guide groove 2111 is an open design, and the pawl-shaped guide portion 2211 is embedded in the guide groove 2111 from top to bottom. The limiting groove 2112 is a groove distributed in the vertical direction, and the width of the limiting portion 2212 matches the width of the limiting groove 2112, so that the limiting portion 2212 can only move up and down relative to the limiting groove 2112 after being embedded in the limiting groove 2112, thereby ensuring the reliability of the limiting.

[0079] Furthermore, if Figure 2As shown, the traction assembly 23 includes a traction rope 231, and the buffer assembly 24 includes an elastic member 241 and an auxiliary buffer member 242. The lower end of the elastic member 241 is fixedly connected to the connecting plate 212, the upper end of the elastic member 241 is fixedly connected to the lower end of the slider 221, and the auxiliary buffer member 242 is arranged in the middle of the traction rope 231.

[0080] Furthermore, if Figure 4 As shown, the driving mechanism 3 includes a driving motor 31, a reduction gear set 32, a screw transmission member 33, a screw connector 34 and a guide assembly 35 connected in sequence. The guide assembly 35 is connected to the lifting mechanism 2 to achieve power guidance. The end of the traction rope 231 passes through the guide assembly 35 and is connected to the screw connector 34. The guide assembly 35 can ensure that the force direction of the traction rope 231 is consistent with the target direction, avoiding the situation where the deviation in the force direction affects the operation effect of the seat belt buckle. As needed, the transmission structure between the driving motor 31 and the guide assembly 35 can also be any other transmission structure suitable for the present invention, which will not be repeated here.

[0081] In this embodiment, the elastic member 241 in the buffer assembly 24 can be an elastic device such as a spring. The two elastic members 241 are respectively connected to the two sides of the connecting plate 212 and the slider 221. The auxiliary buffer member 242 is an elastic component connected to the middle part of the traction rope 231, such as an elastic and recoverable device such as a spring.

[0082] As a reference for the structure and material selection of the buffer component 24, the design reference parameters of the forces acting on the buffer component 24 in different modes are as follows:

[0083] When the seat belt buckle is in static mode, the force source of the buffer component 24 is the deadweight of the buckle body 1, the force is less than or equal to 3N, the buffer component 24 does not deform, and the buffer component 24 only provides support.

[0084] When the seat belt buckle is in the static welcoming mode and the static seeing-off mode, it is necessary to overcome the deadweight of the buckle body 1 and lift it upward to a preset height. The force source of the buffer component 24 is the driving component, and the force is less than or equal to 70N. The buffer component 24 is slightly deformed, and the buffer component 24 provides support and buffering effects.

[0085] When the seat belt buckle is in the welcome mode, the occupant inserts the fastener into the buckle body 1, and the force source of the buffer component 24 is the thrust of the fastener inserted into the buckle body 1, and the force is less than or equal to 30N. The buffer component 24 does not deform, and the buffer component 24 only provides support.

[0086] When the seat belt buckle is in the passenger delivery mode, the occupant pulls the buckle out of the buckle body 1, and the force source of the buffer component 24 is the pulling force of unlocking the buckle from the buckle body 1, and the force is less than or equal to 60N. The buffer component 24 is slightly deformed, and the buffer component 24 mainly provides support.

[0087] When the seat belt buckle is in the wearing mode, the buckle body 1 descends to drive the seat belt 5 to contract. The force source of the buffer component 24 is the driving component, and the force is 70-80N. The buffer component 24 is compressed and deformed. The buffer component 24 is slightly compressed and provides force transmission.

[0088] When the seat belt buckle is in emergency mode, the vehicle encounters emergency situations such as high-speed turning, emergency braking, collision avoidance and oversteering, and the force source of the buffer component 24 is the driving component, the force is 100-160N, the buffer component 24 is compressed and deformed, the buffer component 24 is semi-compressed and provides force transmission.

[0089] When the seat belt buckle is in collision mode, the vehicle is expected to collide, and the buckle body 1 needs to drop and apply downward pulling force to the seat belt 5 as much as possible to maintain the occupant's waist posture. The force source of the buffer component 24 is the driving component, and the force is 170-200N. The buffer component 24 is compressed and deformed, and the buffer component 24 is fully compressed and provides force transmission.

[0090] Under static pressure, the buffer assembly 24 is compressed and deformed by the deadweight of the occupant, and the amount of compression deformation is automatically adjusted according to the body size of the occupant, and the body size of the occupant is determined by the weight detected by the seat 6. For example, when the occupant weighs 30 kg, the occupant is determined to be a child, and the force is about 300 N. When the occupant weighs 56 kg, the occupant is determined to be a small adult, and the force is about 550 N. When the occupant weighs 108 kg, the occupant is determined to be a large adult, and the force is about 1060 N.

[0091] Preferably, in order to further ensure that the safety belt 5 can protect the occupant when a collision occurs, the screw connector 34 and the traction rope 231 are frictionally connected. When the friction force between the screw connector 34 and the traction rope 231 reaches a preset range, for example, a range of 4-5KN, the traction rope 231 and the screw connector 34 will be disengaged. At this time, the lock body 1 and the slider 221 are subjected to force and pulled out along with the safety belt 5, and finally locked by the limiting portion 2212 at the end of the slider 221 and the limiting groove 2112. The moving distance can be specifically set by changing the length of the limiting groove 2112, and the limit friction force can be designed according to the material and structure of the connection part and the collision performance target.

[0092] In summary, the liftable seat belt buckle provided by the present invention can greatly improve the application scenarios of the seat belt buckle by raising and lowering the buckle body 1, and can significantly improve the comfort and safety of the seat 6 by setting multiple modes.

[0093] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0094] like Fig.13 As shown, the technical solution of the present invention provides a control method for a liftable seat belt buckle used in any of the aforementioned embodiments, comprising:

[0095] Step S101: Acquire vehicle operation information, seat 6 load-bearing information, lock plugging information and buffer component 24 deformation information.

[0096] Step S102: determining the operating mode of the seat belt buckle according to the vehicle operating information, the load-bearing information of the seat 6, the buckle plugging information and the deformation information of the buffer assembly 24.

[0097] Step S103: According to the operation mode of the seat belt buckle, the lifting mechanism 2 is controlled to adjust the horizontal height of the buckle body 1 , and the driving force direction and driving force magnitude of the driving mechanism 3 are adjusted.

[0098] In this embodiment, the vehicle's main control module monitors the vehicle's operating conditions, the conditions of the seats 6 and the seat belt buckles in real time to determine the number of passengers and the operating mode of the seat belt buckles on each seat 6. The drive mechanism 3 in the seat belt buckle is controlled by the preset operating mode action and corresponding parameters to achieve the rise or fall of the buckle body 1, or the tightening or loosening of the seat belt 5, thereby achieving automatic adjustments such as the buckle body 1 descending to avoid passengers, the buckle body 1 rising to facilitate plug-in operations, and the seat belt 5 tightening to eliminate gaps, so as to improve the comfort of the passengers during the ride. In an emergency, the drive mechanism 3 can also start to control the movement of the lifting mechanism 2 and drive the buckle body 1 to descend to tighten the seat belt 5, thereby ensuring the safety of the passengers in an emergency.

[0099] Furthermore, the vehicle operation information includes engine information, door opening and closing information, vehicle speed information, acceleration information, pedal travel information, AEB information and collision information. The vehicle operation information may also include vehicle information such as tire pressure information and airbag information, and AEB (Autonomous Emergency Braking) information is information of the automatic emergency braking system.

[0100] In one embodiment, step S102 includes:

[0101] The analysis is performed based on the vehicle operation information, the load-bearing information of the seat 6 , the lock plugging information and the deformation information of the buffer assembly 24 .

[0102] If the vehicle is being started for the first time, make sure the seat belt buckles are in initial setting mode.

[0103] If the engine is on, the door is closed, there is an occupant in seat 6 and the seat belt buckle is not plugged in, it is determined that the seat belt buckle is in the welcome mode.

[0104] If there is an occupant on the seat 6 and the seat belt buckle is plugged in, it is determined that the seat belt buckle is in the wearing mode.

[0105] If the engine is stopped and the door is open, determine that the seat belt buckle is in passenger mode.

[0106] If at least one of the vehicle speed information, the acceleration information, the pedal travel information, the AEB information and the deformation information of the buffer component 24 exceeds the safety range, it is determined that the seat belt buckle is in the emergency mode.

[0107] If collision information is obtained, it is determined that the seat belt buckle is in collision mode.

[0108] If a preset time has passed after the collision mode is triggered and a pulling force of the occupant leaning forward is received, it is determined that the seat belt buckle is in the post-collision mode.

[0109] In one embodiment, step S103 includes:

[0110] In the initial setting mode, the control driving mechanism 3 adjusts the upper end surface of the lock body 1 to be flush with the cushion surface of the seat 6 and sets the initial height of the lock body 1 and the parameters of the buffer assembly 24 and the lifting mechanism 2.

[0111] In the welcoming mode, the lifting mechanism 2 is controlled to rise by the driving mechanism 3, so that the lock body 1 rises to a first preset height. Preferably, the first preset height is 10-15 mm. As a match, the lighting equipment inside the vehicle can simultaneously focus the light on the lock body 1, further facilitating the occupant to operate.

[0112] In the wearing mode, the driving mechanism 3 controls the lifting mechanism 2 to descend, so that the buckle body 1 applies a first preset tension downward to the safety belt 5 to eliminate the wearing gap of the occupant. Preferably, the first preset tension is 70-80N, which can effectively eliminate the wearing gap while ensuring the comfort of the occupant. The first preset tension can be specifically set according to needs.

[0113] In the guest delivery mode, the lifting mechanism 2 is controlled to rise by the driving mechanism 3, so that the lock body 1 rises to a second preset height. Preferably, the second preset height is 10-15 mm. Similarly, as a cooperation, the lighting equipment inside the vehicle can simultaneously focus the light on the lock body 1, further facilitating the occupant to operate.

[0114] In the emergency mode, the lifting mechanism 2 is controlled to descend by the driving mechanism 3, so that the buckle body 1 applies a second preset tension downward to the seat belt 5 to restrain the sitting posture of the occupant. Preferably, the second preset tension is 100-160N, which can restrain and maintain the posture of the occupant, thereby reducing the discomfort of the occupant in the vehicle emergency state.

[0115] In the collision mode, the driving mechanism 3 operates at maximum power to lower the lifting mechanism 2 and compress the buffer assembly 24 to the limit, so that the buckle body 1 applies the maximum pulling force downward to the safety belt 5 to lock the occupant on the seat 6. Preferably, the downward pulling force of the safety belt 5 under the maximum power operation of the driving mechanism 3 is 170-200N, at which time the sitting posture of the occupant is more restricted, ensuring that the waist posture of the occupant is maintained to protect the waist and neck of the occupant.

[0116] In the post-collision mode, the driving mechanism 3 controls the lifting mechanism 2 to rise, or controls the buckle body 1 to release the buckle, so that the seat belt 5 is loosened to release the occupant.

[0117] Through the above method, the liftable seat belt buckle in the above embodiment can improve the comfort of the occupants in actual application scenarios and protect the personal safety of the occupants. Of course, other operating modes realized by the liftable seat belt buckle provided by the present invention should also fall within the protection scope of the present invention.

[0118] The technical solution of the present invention provides a vehicle, including a vehicle body, a main control module and a seat 6 are provided in the vehicle body, and the seat 6 is provided with a liftable seat belt buckle provided by any of the aforementioned embodiments. The main control module is communicatively connected with the liftable seat belt buckle. By running the main control module and the liftable seat belt buckle, the control method of the liftable seat belt buckle provided by any of the aforementioned embodiments can be executed to achieve the same technical effect.

[0119] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0120] like Fig.14The figure is a schematic diagram of the hardware structure of an electronic device of the present invention, including a memory 1402, a processor 1401 and an electronic device program on the memory 1402, and the processor 1401 executes the electronic device program to implement the steps of the control method of the liftable seat belt buckle of any of the above embodiments.

[0121] Fig.14 A processor 1401 is taken as an example.

[0122] The electronic device may further include: an input device 1403 and a display device 1404 .

[0123] The processor 1401, the memory 1402, the input device 1403 and the display device 1404 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

[0124] The memory 1402 is a non-volatile electronic device readable storage medium, which can be used to store non-volatile software programs, non-volatile electronic device executable programs and modules, such as program instructions / modules corresponding to the control method of the liftable seat belt buckle in the embodiment of the present application. The processor 1401 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 1402, that is, realizing the control method of the liftable seat belt buckle in the above embodiment.

[0125] The memory 1402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the control method for the liftable seat belt buckle, etc. In addition, the memory 1402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 1402 may optionally include a memory remotely arranged relative to the processor 1401, and these remote memories may be connected to the device for executing the control method for the liftable seat belt buckle via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0126] The input device 1403 can receive user clicks and generate signal inputs related to user settings and function controls of the control method of the liftable seat belt buckle. The display device 1404 can include display devices such as a display screen.

[0127] The one or more modules are stored in the memory 1402, and when executed by the one or more processors 1401, the control method of the liftable seat belt buckle in any of the above method embodiments is executed.

[0128] When the electronic device disclosed in the present invention is in operation, it can execute all the steps of the control method of the liftable seat belt buckle mentioned above, and control the driving mechanism 3 in the liftable seat belt buckle to adjust the driving force direction and driving force magnitude accordingly under different conditions, so that the lifting mechanism 2 is raised or lowered with a corresponding amplitude and force, so as to achieve the technical effect of adjusting the horizontal height of the buckle body 1 to the target height or tightening or loosening the seat belt 5 through the movement of the buckle body 1, so that the seat belt buckle can provide the vehicle occupants with a more comfortable and safe riding experience in more application scenarios of the vehicle.

[0129] An embodiment of the present invention provides an electronic device readable storage medium, which stores an electronic device program / instruction. When the electronic device program / instruction is executed by the processor N01, all steps of the control method of the liftable seat belt buckle as described above are implemented.

[0130] In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-temporary electronic device readable storage medium, for example, a non-temporary electronic device readable storage medium may be a ROM, a random access memory (Random Access Memory, RAM), a compact disc read-only memory (Compact Disc ROM, CD ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0131] An embodiment of the present invention provides an electronic device program product, including an electronic device program / instruction, which implements the steps of the control method of a liftable seat belt buckle as described above when executed by a processor.

[0132] By running the above-mentioned electronic device program product, all steps of the control method of the liftable seat belt buckle as described above can be executed, and the driving mechanism 3 in the liftable seat belt buckle is controlled to adjust the driving force direction and driving force size accordingly under different conditions, so that the lifting mechanism 2 is raised or lowered with a corresponding amplitude and force, so as to achieve the technical effect of adjusting the horizontal height of the buckle body 1 to the target height or tightening or loosening the seat belt 5 through the movement of the buckle body 1, so that the seat belt buckle can provide a more comfortable and safe riding experience for the vehicle occupants in more application scenarios of the vehicle.

[0133] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A liftable safety belt buckle, characterized in that: It includes a lock body for inserting a fastener, a lifting mechanism for changing the horizontal height of the lock body, a driving mechanism for driving the lifting mechanism to rise or fall, and a connecting base for fixedly connecting with a seat, which are connected in sequence from top to bottom; The lifting mechanism is provided with a buffer component for buffering tension or pressure for the lock body.

2. The liftable safety belt buckle according to claim 1, characterized in that: The lifting mechanism includes a fixed component, a movable component capable of moving up and down relative to the fixed component, a traction component for transmitting power to the movable component, and a buffer component; The lower end of the fixed component is connected to the driving mechanism; the upper end of the movable component is connected to the locking body, and the lower end is movably connected to the fixed component; the upper end of the traction component is connected to the movable component, and the lower end is connected to the driving mechanism; the upper end of the buffer component is connected to the movable component, and the lower end is connected to the fixed component.

3. The liftable safety belt buckle according to claim 2, characterized in that: The movable component includes a slider, and the fixed component includes a connecting bracket and a connecting plate connected to the lower end of the connecting bracket; The connecting bracket is provided with a guide groove and a limit groove, and the slider is provided with a guide portion embedded in the guide groove for guiding the moving path of the slider and a limit portion embedded in the limit groove for limiting the position of the slider.

4. The liftable safety belt buckle according to claim 3, characterized in that: The traction assembly includes a traction rope, and the buffer assembly includes an elastic member and an auxiliary buffer member; The lower end of the elastic member is fixedly connected to the connecting plate, the upper end of the elastic member is fixedly connected to the lower end of the sliding block, and the auxiliary buffer member is arranged in the middle of the traction rope.

5. The liftable safety belt buckle according to claim 1, characterized in that: The driving mechanism comprises a driving motor, a reduction gear set, a screw transmission member, a screw connecting member and a guide assembly which are connected in sequence, and the guide assembly is connected to the lifting mechanism to realize power guidance.

6. A control method for the liftable safety belt buckle according to any one of claims 1 to 5, characterized in that: include: Obtain vehicle operation information, seat load information, lock plug-in information and buffer component deformation information; Determining an operation mode of the seat belt buckle according to the vehicle operation information, the seat load-bearing information, the buckle plugging information and the buffer component deformation information; According to the operation mode of the seat belt buckle, the lifting mechanism is controlled to adjust the horizontal height of the buckle body, and the driving force direction and driving force size of the driving mechanism are adjusted.

7. The control method of the liftable seat belt buckle according to claim 6, characterized in that: The vehicle operation information includes engine information, door opening and closing information, vehicle speed information, acceleration information, pedal travel information, AEB information and collision information.

8. The control method of the liftable seat belt buckle according to claim 7, characterized in that: The step of determining the operating mode of the seat belt buckle according to the vehicle operating information, the seat load bearing information, the buckle plugging information and the buffer component deformation information includes: Analyze according to the vehicle operation information, the seat load-bearing information, the lock plugging information and the buffer component deformation information; If the vehicle is started for the first time, make sure the seat belt buckle is in the initial setting mode; If the engine is on, the doors are closed, there are occupants in the seats and the seat belt buckles are not engaged, determine that the seat belt buckles are in the welcome mode; If there is an occupant in the seat and the seat belt buckle is engaged, determine that the seat belt buckle is in the donning mode; If the engine is stopped and the door is open, make sure the seat belt buckle is in the delivery mode; If at least one of the vehicle speed information, acceleration information, pedal travel information, AEB information and cushioning component deformation information exceeds a safe range, it is determined that the seat belt buckle is in emergency mode; If collision information is obtained, it is determined that the seat belt buckle is in collision mode; If a preset time has passed after the collision mode is triggered and a pulling force of the occupant leaning forward is received, it is determined that the seat belt buckle is in the post-collision mode.

9. The control method of the liftable seat belt buckle according to claim 8, characterized in that: According to the operation mode of the seat belt buckle, controlling the lifting mechanism to adjust the horizontal height of the buckle body and adjusting the driving force direction and driving force magnitude of the driving mechanism includes: In the initial setting mode, the control driving mechanism adjusts the upper end surface of the lock body to be flush with the cushion surface of the seat, sets the initial height of the lock body, and sets the parameters of the buffer assembly and the lifting mechanism; In the welcoming mode, the lifting mechanism is controlled to rise by the driving mechanism, so that the lock body rises to a first preset height; In the wearing mode, the driving mechanism controls the lifting mechanism to descend, so that the buckle body applies a first preset pulling force downward to the safety belt to eliminate the wearing gap of the occupant; In the guest delivery mode, the driving mechanism controls the lifting mechanism to rise, so that the lock body rises to a second preset height; In the emergency mode, the lifting mechanism is controlled to descend by the driving mechanism, so that the buckle body applies a second preset pulling force downward to the seat belt to restrict the sitting posture of the occupant; In the collision mode, the driving mechanism operates at maximum power to lower the lifting mechanism and compress the buffer assembly to the limit, so that the buckle body applies maximum pulling force downward to the seat belt to lock the occupant on the seat; In the post-collision mode, the driving mechanism controls the lifting mechanism to rise, or controls the buckle body to release the buckle, so that the seat belt is relaxed to release the occupant.

10. A vehicle, characterized in that: The invention comprises a vehicle body, wherein a main control module and a seat are provided in the vehicle body, wherein the seat is provided with a liftable seat belt buckle as described in any one of claims 1 to 5, wherein the main control module is communicatively connected with the liftable seat belt buckle, and a control method for the liftable seat belt buckle as described in any one of claims 6 to 9 can be executed by running the main control module and the liftable seat belt buckle.

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