Active safety system for seat

Abstract

The invention discloses a seat active safety system which comprises a seat body and an active safety controller, the seat body is provided with a backrest angle adjusting module, a seat frame inclination angle adjusting module and a safety belt point position adjusting module, and the safety belt point position adjusting module comprises an outlet adjusting mechanism, an inserting buckle adjusting mechanism and a lower anchor point adjusting mechanism. The backrest angle adjusting module, the seat frame inclination angle adjusting module and the safety belt point position adjusting module are all in feedback connection with the active safety controller, and the active safety controller is used for receiving adjusting parameters of the backrest angle adjusting module and the seat frame inclination angle adjusting module. And a working instruction is sent to the safety belt point position adjusting module through the received adjusting parameters, so that the outlet adjusting mechanism, the buckle adjusting mechanism and the lower anchor point adjusting mechanism can adaptively move to the optimal restraint state of the safety belt. The self-adaptive safety belt has the beneficial effects that the self-adaptive adjustment of the safety belt can be realized in a zero-gravity riding posture, so that the safety belt is in an optimal constraint state.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an active seat safety system. Background Art

[0002] As the automobile market expands, market competition becomes increasingly fierce, and customers have higher and higher requirements for the quality, refinement, and comfort of automobile products. Car seats are one of the most frequently touched and used parts of a vehicle, and they are also the first products perceived by customers. As the demand of the automobile market changes, zero-gravity seats came into being.

[0003] The zero-gravity mode of the zero-gravity seat is: the front end of the seat frame is lifted upward, the backrest is tilted backward, and the leg rest is slightly tilted. In zero-gravity mode, although the occupant can lie on the seat in a very comfortable posture, there are still some invisible safety hazards. When the occupant is in a non-standard posture, such as lying down, the restraining effect of the seat belt on the occupant will decrease. Once the car collides, the life safety of the occupant will be seriously threatened. Summary of the invention

[0004] In view of this, the present invention provides a seat active safety system, which can realize adaptive adjustment of the seat belt in a zero-gravity riding posture, so that the seat belt is in an optimal restraint state.

[0005] A seat active safety system, the key of which is to include:

[0006] A seat body, the seat body having a backrest angle adjustment module, a seat frame tilt adjustment module and a seat belt position adjustment module, the seat belt position adjustment module including an outlet adjustment mechanism, a buckle adjustment mechanism and a lower anchor point adjustment mechanism; and

[0007] An active safety controller is connected to the backrest angle adjustment module, the seat frame inclination adjustment module and the seat belt point adjustment module. The active safety controller is used to receive adjustment parameters of the backrest angle adjustment module and the seat frame inclination adjustment module, and send a working instruction to the seat belt point adjustment module through the received adjustment parameters, so that the outlet adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt.

[0008] With the above structure, in a zero-gravity riding posture, the active safety controller can receive the adjustment parameters of the backrest angle adjustment module and the seat frame inclination adjustment module, and send work instructions to the seat belt point adjustment module through the received adjustment parameters, so that the exit adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt according to the sitting posture of the occupant, which helps to improve the safety of the seat while also providing the occupants with more comfortable protection.

[0009] Preferably: it also includes an early warning system and a passive safety controller, the early warning system is integrated on the vehicle and is used to actively identify collision accidents; the passive safety controller is connected to the backrest angle adjustment module, the seat frame inclination adjustment module, the seat belt point adjustment module and the early warning system, the passive safety controller is used to receive collision information from the early warning system, and send work instructions to the backrest angle adjustment module, the seat frame inclination adjustment module and the seat belt point adjustment module through the received collision information; after the backrest angle adjustment module and the seat frame inclination adjustment module receive the work instructions, the backrest and the seat frame can return to a normal sitting position; after the seat belt point adjustment module receives the work instructions, the seat belt outlet, the buckle and the lower anchor point can return to the optimal restraint state when the seat is in a normal sitting position.

[0010] Preferably, after the passive safety controller receives the collision information from the early warning system, the backrest and the seat frame return to a normal sitting position within 0.2 seconds; the seat belt outlet, the buckle and the lower anchor point return to the optimal restraint state in the normal sitting position of the seat within 0.2 seconds.

[0011] Preferably, the backrest angle adjustment module, seat frame inclination adjustment module, outlet adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism are all equipped with a quick reset device, which is used to enable the corresponding backrest, seat frame, seat belt outlet, buckle and lower anchor point to return to the optimal restraint state in the normal sitting state of the seat in a short time.

[0012] Preferably, the seat belt of the seat body is a three-point seat belt, including an outlet component installed on one side of the shoulder of the backrest, and a socket component and a lower anchor point component installed on the left and right sides of the seat frame;

[0013] The outlet adjustment mechanism has a four-way adjustment function for controlling the outlet component to move up, down, left and right;

[0014] The buckle adjustment mechanism has a four-way adjustment function for controlling the forward, backward, left and right movement of the socket component;

[0015] The lower anchor point adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the lower anchor point component.

[0016] Preferably, the buckle adjustment mechanism comprises a front-to-back moving module and a left-to-right moving module, the front-to-back moving module comprises a base, a transition block slidably mounted on the base, a screw rod rotatably mounted on the base, and a motor for driving the screw rod to rotate, the transition block is threadedly sleeved on the screw rod, and the socket component is fixedly mounted on the transition block;

[0017] The base is connected to a left-right moving module, and the left-right moving module is used to drive the base to slide left-right.

[0018] As a preferred embodiment: the seat body further comprises a headrest angle adjustment module and a leg rest angle adjustment module, and the headrest angle adjustment module and the leg rest angle adjustment module are both connected to the passive safety controller;

[0019] After the passive safety controller sends a working instruction to the headrest angle adjustment module and the leg rest angle adjustment module through the received collision information, the headrest and the leg rest can return to a normal sitting position.

[0020] Preferably: the seat body includes a base and a seat frame located on the upper side of the base, the rear end of the seat frame is rotatably connected to the base, the front end of the seat frame is rotatably connected to an upper linkage component, the front end of the base is rotatably connected to a lower linkage component, the upper linkage component and the lower linkage component are hinged to each other through a pin shaft, and an angle adjuster is provided between the lower linkage component and the base; the upper linkage component is provided with a seat frame collapse mechanism at the position corresponding to the pin shaft, and after a vehicle collision, the seat frame collapse mechanism can force the seat frame to quickly return to a normal sitting position.

[0021] Preferably, the rear end of the seat frame is rotatably mounted with a backrest, and the backrest is provided with a backrest collapse energy absorption structure;

[0022] A first crush protection device is installed on the seat frame crush mechanism, and a second crush protection device is installed on the backrest crush energy absorption structure. The first crush protection device and the second crush protection device are both connected to the passive safety controller. After the early warning system feeds back the accident collision information to the passive safety controller, the passive safety controller can select the first crush protection device and / or the second crush protection device to open.

[0023] Preferably, the active safety controller is connected to an information acquisition module, which can obtain occupant information by manual input or intelligent recognition automatic input, and the exit adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt according to the occupant information.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. With the seat active safety system provided by the present invention, in a zero-gravity riding posture, the active safety controller can receive the adjustment parameters of the backrest angle adjustment module and the seat frame inclination adjustment module, and send a working instruction to the seat belt point adjustment module through the received adjustment parameters, so that the outlet adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt according to the body shape and sitting posture of the occupant, which helps to improve the safety of the seat and the riding comfort of the occupant.

[0026] 2. With the active seat safety system provided by the present invention, the early warning system can actively identify the impending collision accident and feed back the collision accident information to the passive safety controller in advance. The passive safety controller can quickly return the backrest and seat frame to the normal sitting position within a certain period of time, and quickly return the seat belt outlet, buckle and lower anchor point to the optimal restraint state in the normal sitting position of the seat. In this way, the seat and seat belt can better protect the occupants and minimize the collision damage value.

[0027] 3. With the active seat safety system provided by the present invention, when a vehicle collides, the seat frame collapse mechanism on the seat frame can instantly return the seat frame to a normal sitting position, providing multiple safeguards for the safety of the seat. At the same time, the collapse process itself will absorb energy and reduce the impact force of the seat, thereby optimizing the damage value to the occupants.

[0028] 4. The overall seat system combines active safety systems with passive safety technologies to form a comprehensive protection measure. The active safety system can reduce the risk of collision before an accident occurs, while the passive safety technology can minimize occupant injuries when a collision occurs, thereby achieving more efficient safety protection.

[0029] 5. In addition to the zero-gravity sitting posture, the safety system provided by the present invention can also be applied to seat modes with any other postures, such as: only the backrest is tilted, only the front end of the seat frame is lifted, or only the leg rest is unfolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a control principle diagram of the seat safety system of the present invention;

[0031] Figure 2 It is the front view of the seat body;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the seat body;

[0033] Figure 4 It is a left side view of the seat body;

[0034] Figure 5 It is a partial structural diagram of the seat body (only the seat frame is shown);

[0035] Figure 6 It is a structural schematic diagram of the upper linkage component 3;

[0036] Figure 7 It is a schematic diagram of the structure of the collapse plate 5;

[0037] Figure 8 A partial structural diagram showing the connection relationship between the pin shaft 6, the upper linkage component 3 and the collapse plate 5 (normal sitting position);

[0038] Fig. 9 A partial structural schematic diagram showing the connection relationship between the pin shaft 6, the upper linkage component 3 and the collapse plate 5 (the state after collapse occurs);

[0039] Fig.10 It is a partial schematic diagram of the seat in a zero-gravity state (only the seat frame 2 is shown);

[0040] Fig.11 It is a partial schematic diagram of the seat after the impact and collapse (only the seat frame 2 is shown);

[0041] Fig.12 For along Fig.10 Sectional view of AA. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with embodiments and drawings.

[0043] The directions "front", "back", "up", "down", "left" and "right" mentioned in this embodiment are based on the directions of the car seat in normal use.

[0044] like Figure 1 As shown, a seat active safety system includes a seat body and an active safety controller. The seat body is provided with a backrest angle adjustment module, a seat frame tilt adjustment module and a seat belt point adjustment module, wherein the backrest angle adjustment module is used to adjust the rotation angle of the seat back 7, and the seat frame tilt adjustment module is used to adjust the rotation angle of the seat frame 2. The seat belt point adjustment module includes an outlet adjustment mechanism, a buckle adjustment mechanism and a lower anchor point adjustment mechanism. The backrest angle adjustment module, the seat frame tilt adjustment module and the seat belt point adjustment module are all feedback-connected to the active safety controller. The active safety controller can receive the adjustment parameters of the backrest angle adjustment module and the seat frame tilt adjustment module, and send a working instruction to the seat belt point adjustment module through the received adjustment parameters, so that the outlet adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt. That is, in a zero-gravity riding posture, the exit adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt according to the occupant's sitting posture, which helps to improve the safety of the seat while also providing the occupants with more comfortable protection.

[0045] The active safety controller is also connected to an information collection module, which is used to provide the active safety controller with occupant information, including basic parameters such as height, gender, weight, and leg length ratio. The active safety controller sends a work instruction to the seat belt point adjustment module based on the occupant information provided by the information collection module, and then the outlet adjustment mechanism, the buckle adjustment mechanism, and the lower anchor point adjustment mechanism can adaptively fine-tune the seat belt to the optimal restraint state according to the occupant information, thereby improving the safety and comfort of the seat. In this embodiment, the information collection module obtains occupant information by manual input or intelligent recognition automatic input.

[0046] For further information, see Figure 2 and 3 The seat belt of the seat body is a three-point seat belt, which includes an outlet component 11a installed on one side of the shoulder of the backrest 7, and a socket component 11b and a lower anchor component 11c installed on the left and right sides of the seat frame 2. Among them, the outlet adjustment mechanism has a four-way adjustment function, which is used to control the upward, downward, left and right movement of the outlet component 11a; the buckle adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the socket component 11b; the lower anchor adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the lower anchor component 11c. By controlling the four-way adjustment function of the three adjustment structures, the seat belt can always be in the best restraint state.

[0047] Re-attend Figure 4 The buckle adjustment mechanism includes a forward and backward moving module 12 and a left and right moving module. The forward and backward moving module 12 includes a transition block 12b, a base 12a, a screw rod 12c rotatably mounted on the base, and a motor 12d for driving the screw rod 12c to rotate. The transition block 12b is threadedly sleeved on the screw rod 12c, and the motor 12d drives the screw rod 12c to rotate, which can drive the transition block 12b to slide forward and backward on the base 12a. The socket component 11b is fixedly mounted on the transition block 12b, and the transition block 12b slides forward and backward to drive the socket component 11b to move forward and backward.

[0048] For example Figure 4 As shown, two guide rods 12e parallel to the screw rod 12c are fixedly mounted on the base 12a, and the transition block 12b is slidably sleeved on the two guide rods 12e. With such a design, the two guide rods 12e play a guiding role when the transition block 12b slides, so that the transition block 12b can slide back and forth smoothly.

[0049] Further, the base 12a is connected to the left-right moving module, which is used to drive the base to slide left-right, thereby driving the socket component 11b to move left-right. In this embodiment, the left-right moving module adopts the same driving mechanism as the front-back moving module 12, or uses other linear driving mechanisms to achieve left-right movement.

[0050] In this embodiment, the working principle of the four-way adjustment function of the outlet adjustment mechanism and the lower anchor point adjustment mechanism is consistent with the four-way adjustment function of the buckle adjustment mechanism, which will not be described in detail here. Since the execution parts of the outlet adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism all use motors as output power, the active safety controller sends instructions to the motor to drive the corresponding mechanism to move adaptively. The controller sends action instructions to the motor, which is a conventional technical means and will not be described in detail here.

[0051] Please refer to Figure 1 The active safety system of the seat also includes an early warning system and a passive safety controller. The early warning system is integrated in the vehicle and can actively identify an impending collision accident. The passive safety controller is connected to the backrest angle adjustment module, the seat frame tilt adjustment module, the seat belt point adjustment module and the early warning system. When the early warning system detects a potential collision hazard, it can promptly feed back the information to the passive safety controller. The passive safety controller sends a work instruction to the backrest angle adjustment module, the seat frame tilt adjustment module and the seat belt point adjustment module. After the backrest angle adjustment module and the seat frame tilt adjustment module receive the work instruction, the backrest 7 and the seat frame 2 can return to the normal sitting position. After the seat belt point adjustment module receives the work instruction, the seat belt outlet, the buckle and the lower anchor point can return to the optimal restraint state under the normal sitting position of the seat, thereby maximizing the reduction of the collision damage value.

[0052] After the passive safety controller receives the collision information from the early warning system, the backrest 7 and the seat frame 2 can return to the normal sitting position in a short time, and the seat belt outlet, buckle and lower anchor point can return to the optimal restraint state in the normal sitting position of the seat in a short time. In this embodiment, the backrest 7, the seat frame 2, the seat belt outlet, buckle and lower anchor point are all required to return within 0.2s.

[0053] Furthermore, the backrest angle adjustment module, seat frame inclination adjustment module, outlet adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism are all equipped with a quick reset device, which is used to enable the corresponding backrest, seat frame, seat belt outlet, buckle and lower anchor point to return to the optimal restraint state in the normal sitting position of the seat in a short time.

[0054] In this embodiment, the passive safety controller is connected to the active safety controller for feedback, and the active safety controller can feed back the positions of the backrest 7, the seat frame 2, the seat belt outlet, the buckle and the lower anchor point in the best safety state to the passive safety controller. After the passive safety controller sends a work instruction to the backrest angle adjustment module, the seat frame inclination adjustment module and the seat belt position adjustment module through the received collision information, the backrest 7 and the seat frame 2, the seat belt outlet, the buckle and the lower anchor point can return to their positions at the fastest speed according to the information previously fed back by the active safety controller.

[0055] like Figure 1 As shown, the seat body also includes a headrest angle adjustment module and a leg rest angle adjustment module, wherein the headrest angle adjustment module is used to adjust the rotation angle of the seat headrest 8, and the leg rest angle adjustment module is used to adjust the rotation angle of the seat leg rest 9, and the headrest angle adjustment module and the leg rest angle adjustment module are both connected to the passive safety controller. After the passive safety controller sends a working instruction to the headrest angle adjustment module and the leg rest angle adjustment module through the received collision information, the headrest 8 and the leg rest 9 can quickly return to the normal sitting position, further improving the safety of the seat.

[0056] like Figure 5 , 10 As shown in FIG. 11 , the seat body includes a base 1 and a seat frame 2 located on the upper side of the base 1. The rear end of the seat frame 2 is rotatably connected to the base 1. The front end of the seat frame 2 is rotatably connected to an upper linkage component 3. The front end of the base 1 is rotatably connected to a lower linkage component 4. The upper linkage component 3 and the lower linkage component 4 are hinged to each other through a pin 6. A recliner 10 is provided between the lower linkage component 4 and the base 1. The upper linkage component 3 is provided with a seat frame collapse mechanism at a position corresponding to the pin 6. After a vehicle collision, the seat frame collapse mechanism can force the seat frame 2 to quickly return to a normal sitting position, thereby providing multiple guarantees for the safety of the seat.

[0057] For example Figure 6-8 As shown, the seat frame collapse mechanism includes a collapse piece 5 installed on one side of the upper linkage component 3, the collapse piece 5 has a transfer hole 5a located at the lower part, a collapse channel 5b located at the upper part, and a weakened portion 5c formed between the transfer hole 5a and the collapse channel 5b, the upper linkage component 3 has a strip avoidance hole 3a, the transfer hole 5a and the collapse channel 5b are both exposed in the strip avoidance hole 3a, the collapse piece 5 is a 1mm thick metal piece, and the collapse piece 5 is welded to the inner side of the upper linkage component 3. Such a design has the advantages of low cost and high reliability.

[0058] Further, from Figure 7 It can be seen that the weakened portion 5c located on one side of the collapse channel 5b is an upwardly protruding arc surface structure 5c1, and a downwardly recessed deformation guide groove 5c2 is provided in the middle of the arc surface structure 5c1. The deformation guide groove 5c2 is an inverted triangle structure that is wide at the top and narrow at the bottom. Such a design can ensure that the metal sheet is more easily torn when a collapse reaction occurs and collapses in a preset direction.

[0059] Re-attend Figure 8-11, the pin 6 is supported in the adapter hole 5a. In the zero gravity mode, when the impact force is greater than the destructive force of the collapse plate 5, the pin 6 can force the weakened portion 5c to deform and tear open, and enter the collapse channel 5b to move upward, thereby completing the entire collapse reaction. The collapse is passive collapse, which is completed by mechanical destruction. The collapse process itself will absorb energy and reduce the impact force of the seat, thereby optimizing the damage value to the occupant. When the collapse reaction occurs, the front end of the seat frame 2 will drop rapidly while the pin 6 moves upward, and the seat can instantly return to the normal sitting mode.

[0060] Please refer to Figure 1 In this embodiment, the rear end of the seat frame 2 is rotatably equipped with a backrest 7, and the backrest 7 is provided with a backrest crush energy absorption structure. After a vehicle collision occurs, the backrest crush energy absorption structure can force the backrest 7 to quickly return to a normal sitting position. A first crush protection device 13 is installed on the seat frame crush mechanism, and a second crush protection device is installed on the backrest crush energy absorption structure. The first crush protection device 13 and the second crush protection device are both connected to the passive safety controller. After the early warning system feeds back the accident collision signal to the passive safety controller, the passive safety controller can select the first crush protection device 13 and / or the second crush protection device to open according to the current adjustment posture of the seat. Thereby, the seat in different sitting states can maximize the protection of the occupants.

[0061] For example: in zero gravity mode, the first crush protection device 13 and the second crush protection device are opened at the same time, so that the seat frame 2 and the backrest 7 can be crushed back to their original positions during a collision. In the normal sitting position mode of the seat, the first crush protection device 13 and the second crush protection device are closed, and no crushing is achieved during a collision. Only when the seat frame 2 is tilted upward, the first crush protection device 13 is opened, and the second crush protection device is closed, so that only the seat frame 2 can be crushed back to its original position. Only when the backrest 7 is tilted backward, the second crush protection device is opened, and the first crush protection device 13 is closed, so that only the backrest 7 can be crushed back to its original position.

[0062] Re-attend Fig.12 The first collapse protection device 13 includes a block 13a detachably mounted in the strip-shaped avoidance hole 3a, and a moving traction mechanism 13b for driving the block 13a to separate from the strip-shaped avoidance hole 3a, and the moving traction mechanism 13b is connected to the passive safety controller. When the first collapse protection device 13 receives the opening information of the passive safety controller, the moving traction mechanism 13b can drive the block 13a to separate from the strip-shaped avoidance hole 3a, so that the pin 6 breaks through the weakened portion 5c, enters the collapse channel 5b and moves upward, thereby realizing the collapse return of the seat frame 2.

[0063] In this embodiment, the mobile traction mechanism 13b includes a traction rod 13b1 fixedly connected to the block 13a, and a linear motor 13b2 driving the traction rod 13b1 to perform forward and backward linear motion. The linear motor 13b2 drives the traction rod 13b1 to perform linear motion backward, and can drag the block 13a out of the strip-shaped avoidance hole 3a. Since the execution part of the first collapse protection device 13 uses the linear motor 13b2 as output power, the passive safety controller sends a command to the linear motor 13b2, which can drive the traction rod 13b1 to drag the block 13a out of the strip-shaped avoidance hole 3a.

[0064] Based on this, in order to further improve the safety of the seat, other positions of the seat such as the headrest and footrest are provided with a crushing mechanism with the same structure as the seat frame, and each corresponding crushing mechanism is provided with an Nth crushing protection device consistent with the working principle of the first crushing protection device 13.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A seat active safety system, characterized in that: include: A seat body, wherein the seat body is provided with a backrest angle adjustment module, a seat frame tilt adjustment module and a seat belt position adjustment module, wherein the seat belt position adjustment module includes an outlet adjustment mechanism, a buckle adjustment mechanism and a lower anchor point adjustment mechanism; as well as An active safety controller is connected to the backrest angle adjustment module, the seat frame inclination adjustment module and the seat belt point adjustment module. The active safety controller is used to receive adjustment parameters of the backrest angle adjustment module and the seat frame inclination adjustment module, and send a working instruction to the seat belt point adjustment module through the received adjustment parameters, so that the outlet adjustment mechanism, the buckle adjustment mechanism and the lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt.

2. The seat active safety system according to claim 1, characterized in that: Also included is a warning system and a passive safety controller, wherein the warning system is integrated on the vehicle and is used to actively identify a collision accident; The passive safety controller is connected with the backrest angle adjustment module, the seat frame inclination adjustment module, the seat belt point adjustment module and the early warning system. The passive safety controller is used to receive collision information from the early warning system, and send working instructions to the backrest angle adjustment module, the seat frame inclination adjustment module and the seat belt point adjustment module through the received collision information; after the backrest angle adjustment module and the seat frame inclination adjustment module receive the working instructions, the backrest and the seat frame can return to a normal sitting position; after the seat belt point adjustment module receives the working instructions, the seat belt outlet, the buckle and the lower anchor point can return to the optimal restraint state when the seat is in a normal sitting position.

3. The seat active safety system according to claim 2, characterized in that: After the passive safety controller receives the collision information from the early warning system, the backrest and the seat frame return to the normal sitting position within 0.2 seconds; the seat belt outlet, buckle and lower anchor point return to the optimal restraint state in the normal sitting position of the seat within 0.2 seconds.

4. The seat active safety system according to claim 3, characterized in that: The backrest angle adjustment module, seat frame inclination adjustment module, outlet adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism are all equipped with a quick reset device, which is used to enable the corresponding backrest, seat frame, safety belt outlet, buckle and lower anchor point to return to the optimal restraint state in the normal sitting state of the seat in a short time.

5. The seat active safety system according to claim 1, characterized in that: The seat belt of the seat body is a three-point seat belt, including an outlet component installed on one side of the shoulder of the backrest, and a socket component and a lower anchor point component installed on the left and right sides of the seat frame; The outlet adjustment mechanism has a four-way adjustment function for controlling the upward, downward, leftward and rightward movement of the outlet component; The buckle adjustment mechanism has a four-way adjustment function for controlling the forward, backward, left and right movement of the socket component; The lower anchor point adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the lower anchor point component.

6. The seat active safety system according to claim 5, characterized in that: The buckle adjustment mechanism includes a forward and backward moving module and a left and right moving module, the forward and backward moving module includes a base, a transition block slidably mounted on the base, a screw rod rotatably mounted on the base, and a motor for driving the screw rod to rotate, the transition block is threadedly sleeved on the screw rod, and the socket component is fixedly mounted on the transition block; The base is connected to a left-right moving module, and the left-right moving module is used to drive the base to slide left-right.

7. The seat active safety system according to claim 2, characterized in that: The seat body further includes a headrest angle adjustment module and a leg rest angle adjustment module, and the headrest angle adjustment module and the leg rest angle adjustment module are both connected to the passive safety controller; After the passive safety controller sends a working instruction to the headrest angle adjustment module and the leg rest angle adjustment module through the received collision information, the headrest and the leg rest can return to a normal sitting position.

8. The seat active safety system according to claim 2, characterized in that: The seat body includes a base and a seat frame located on the upper side of the base, the rear end of the seat frame is rotatably connected to the base, the front end of the seat frame is rotatably connected to an upper linkage component, the front end of the base is rotatably connected to a lower linkage component, the upper linkage component and the lower linkage component are hinged to each other through a pin shaft, and an angle adjuster is provided between the lower linkage component and the base; the upper linkage component is provided with a seat frame collapse mechanism at the position corresponding to the pin shaft, and after a vehicle collision, the seat frame collapse mechanism can force the seat frame to quickly return to a normal sitting position.

9. The seat active safety system according to claim 8, characterized in that: The rear end of the seat frame is rotatably mounted with a backrest, and the backrest is provided with a backrest collapse energy absorption structure; A first crush protection device is installed on the seat frame crush mechanism, and a second crush protection device is installed on the backrest crush energy absorption structure. The first crush protection device and the second crush protection device are both connected to the passive safety controller. After the early warning system feeds back the accident collision information to the passive safety controller, the passive safety controller can select the first crush protection device and / or the second crush protection device to open.

10. The seat active safety system according to claim 1, characterized in that: The active safety controller is connected to an information acquisition module, which can obtain occupant information by manual input or intelligent recognition automatic input. The exit adjustment mechanism, buckle adjustment mechanism and lower anchor point adjustment mechanism can adaptively move to the optimal restraint state of the seat belt according to the occupant information.

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