Seat active safety system

Abstract

This invention discloses an active safety system for a seat, including a seat body and an active safety controller. The seat body includes a backrest angle adjustment module, a seat frame tilt angle adjustment module, and a seat belt position adjustment module. The seat belt position adjustment module includes an outlet adjustment mechanism, a buckle adjustment mechanism, and a lower anchor point adjustment mechanism. All three modules are connected to the active safety controller via feedback. The active safety controller receives adjustment parameters from the backrest angle adjustment module and the seat frame tilt angle adjustment module, and sends working commands to the seat belt position adjustment module based on these parameters. This enables the outlet adjustment mechanism, buckle adjustment mechanism, and lower anchor point adjustment mechanism to adaptively move to the optimal restraint state of the seat belt. The beneficial effect of this invention is that it enables adaptive adjustment of the seat belt in a zero-gravity seating posture, ensuring the seat belt is in an optimal restraint state.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more specifically to an active safety system for a seat. Background Technology

[0002] As the automotive market expands, market competition intensifies, and customers demand higher quality, refinement, and comfort from automotive products. Car seats are among the most frequently touched and used components in a vehicle, and as the first product customers perceive, zero-gravity seats have emerged in response to changes in automotive market demands.

[0003] The zero-gravity mode of a zero-gravity seat involves lifting the front of the seat frame upwards, tilting the backrest backwards, and slightly tilting the leg rest. While occupants can lie comfortably in zero-gravity mode, some safety hazards remain. When occupants are in non-standard positions, such as a reclining position, the restraining effect of the seatbelt decreases, posing a serious threat to their lives in the event of a collision. Summary of the Invention

[0004] In view of this, the present invention provides an active safety system for a seat that can adaptively adjust the seat belt in a zero-gravity seating posture, so that the seat belt is in the optimal restraint state.

[0005] A key feature of an active safety system for car seats is that it includes:

[0006] The seat body includes a backrest angle adjustment module, a seat frame tilt angle adjustment module, and a seat belt position adjustment module. The seat belt position adjustment module includes an exit adjustment mechanism, a buckle adjustment mechanism, and a lower anchor point adjustment mechanism.

[0007] An active safety controller is connected to the backrest angle adjustment module, the seat frame tilt adjustment module, and the seat belt position adjustment module. The active safety controller receives adjustment parameters from the backrest angle adjustment module and the seat frame tilt adjustment module, and sends working instructions to the seat belt position adjustment module through the received adjustment parameters, so that 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.

[0008] With the above structure, in a zero-gravity seating posture, the active safety controller can receive the adjustment parameters of the backrest angle adjustment module and the seat frame tilt adjustment module, and send working instructions to the seat belt position adjustment module through the received adjustment parameters, so that 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 and also provides the occupant with more comfortable protection.

[0009] Preferably, the system also includes a warning system and a passive safety controller. The warning system is integrated into 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 tilt adjustment module, the seat belt position adjustment module, and the warning system. The passive safety controller receives collision information from the warning system and sends working instructions to the backrest angle adjustment module, the seat frame tilt adjustment module, and the seat belt position adjustment module based on the received collision information. After receiving the working instructions, the backrest and seat frame of the backrest angle adjustment module and the seat frame tilt adjustment module can return to their normal sitting posture. After receiving the working instructions, the seat belt position adjustment module can return the seat belt outlet, buckle, and lower anchor point to their optimal restraint state in the normal sitting posture.

[0010] Preferably, after receiving collision information from the warning system, the passive safety controller returns the backrest and seat frame 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.

[0011] Preferably, the backrest angle adjustment module, seat frame tilt 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 posture 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 the shoulder side of the backrest, and an insertion 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, used to control the up, down, left, and right movement of the outlet component;

[0014] The buckle adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the plug 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 includes a front-to-back moving module and a left-to-right moving module. The front-to-back moving module includes a base, a transition block that can be slidably mounted on the base, a lead screw that is rotatably mounted on the base, and a motor for driving the lead screw to rotate. The transition block is threaded onto the lead screw, and the plug component is fixedly mounted on the transition block.

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

[0018] Preferably, the seat body further includes a headrest angle adjustment module and a leg rest angle adjustment module, both of which are connected to the passive safety controller;

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

[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, and 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 by a pin. 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. 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 fitted with a backrest, and the backrest is provided with a backrest collapse energy absorption structure.

[0022] A first crumple protection device is installed on the seat frame crumple mechanism, and a second crumple protection device is installed on the backrest crumple energy absorption structure. Both the first and second crumple protection devices are 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 to open the first and / or second crumple protection devices.

[0023] Preferably, the active safety controller is connected to an information acquisition module, which can acquire occupant information through 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.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The active safety system for seats provided by this invention enables the active safety controller to receive adjustment parameters from the backrest angle adjustment module and the seat frame tilt angle adjustment module in a zero-gravity seating posture. The controller then sends working instructions to the seat belt position adjustment module based on the received adjustment parameters, so that 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 body shape and sitting posture. This helps to improve the safety of the seat and the comfort of the occupant.

[0026] 2. The active safety system for seats provided by this invention enables the early warning system to proactively identify impending collisions and feed the collision information back to the passive safety controller in advance. The passive safety controller can then quickly return the backrest and seat frame to a normal sitting position within a certain timeframe, and quickly return the seatbelt outlet, buckle, and lower anchor point to the optimal restraint state of the seat in its normal sitting position. This allows the seat and seatbelt to better protect the occupant and minimize collision injury.

[0027] 3. When the active safety system for seats provided by this invention is used, the seat frame collapse mechanism on the seat frame can instantly return the seat frame to a normal sitting position when a vehicle collision occurs, providing multiple protections for the safety of the seat. At the same time, the collapse process itself will also absorb energy and reduce the impact force on the seat, thereby optimizing the damage value to the occupant.

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

[0029] 5. In addition to the zero-gravity seating posture, the safety system provided by this invention can also be applied to other seat modes in any posture, such as: only the backrest is tilted, only the front of the seat frame is raised, or only the leg rest is extended. Attached Figure Description

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

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

[0032] Figure 3 This is a three-dimensional structural diagram of the seat body;

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

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

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

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

[0037] Figure 8 A partial structural diagram (in a normal sitting posture) showing the connection relationship between the pin 6, the upper linkage component 3, and the collapsible plate 5.

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

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

[0040] Figure 11 This is a partial schematic diagram of the seat after it has collapsed following an impact (only part of the seat frame 2 is shown);

[0041] Figure 12 For along Figure 10 Sectional view of AA. Detailed Implementation

[0042] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0043] The directions “front,” “rear,” “up,” “down,” “left,” and “right” mentioned in this embodiment refer to the directions of a car seat in its normal use state.

[0044] like Figure 1 As shown, a seat active safety system includes a seat body and an active safety controller. The seat body has a backrest angle adjustment module, a seat frame tilt angle adjustment module, and a seat belt position adjustment module. The backrest angle adjustment module is used to adjust the rotation angle of the seat back 7, and the seat frame tilt angle adjustment module is used to adjust the rotation angle of the seat frame 2. The seat belt position 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 angle adjustment module, and the seat belt position adjustment module are all connected to the active safety controller for feedback. The active safety controller can receive the adjustment parameters from the backrest angle adjustment module and the seat frame tilt angle adjustment module, and send working commands to the seat belt position adjustment module based on 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. In other words, in a zero-gravity seating 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 and also provides the occupant with more comfortable protection.

[0045] The active safety controller is also connected to an information acquisition module, which provides occupant information, including basic parameters such as height, gender, weight, and leg length ratio. Based on the occupant information provided by the information acquisition module, the active safety controller sends working instructions to the seatbelt adjustment module. Subsequently, the exit adjustment mechanism, buckle adjustment mechanism, and lower anchor point adjustment mechanism can adaptively fine-tune to the optimal restraint state of the seatbelt according to the occupant information, improving seat safety and comfort. In this embodiment, the information acquisition module acquires occupant information through manual input or intelligent recognition automatic input.

[0046] For further details, please refer to Figure 2 and 3 The seat belt is a three-point seat belt, comprising an outlet component 11a installed on the shoulder side of the backrest 7, and insertion components 11b and lower anchor point components 11c installed on the left and right sides of the seat frame 2. The outlet adjustment mechanism has a four-way adjustment function to control the up, down, left, and right movement of the outlet component 11a; the insertion buckle adjustment mechanism has a four-way adjustment function to control the forward, backward, left, and right movement of the insertion component 11b; and the lower anchor point adjustment mechanism has a four-way adjustment function to control the forward, backward, left, and right movement of the lower anchor point component 11c. By controlling the four-way adjustment functions of these three adjustment structures, the seat belt can always be in an optimal restraint state.

[0047] Revisit Figure 4 The buckle adjustment mechanism includes a front-to-back moving module 12 and a left-to-right moving module. The front-to-back moving module 12 includes a transition block 12b, a base 12a, a lead screw 12c rotatably mounted on the base, and a motor 12d for driving the lead screw 12c to rotate. The transition block 12b is threaded onto the lead screw 12c. The motor 12d drives the lead screw 12c to rotate, which can cause the transition block 12b to slide back and forth on the base 12a. The socket component 11b is fixedly mounted on the transition block 12b. The back-to-back sliding of the transition block 12b can drive the socket component 11b to move back and forth.

[0048] For example Figure 4 As shown, two guide rods 12e parallel to the lead screw 12c are fixedly installed on the base 12a, and the transition block 12b is slidably fitted onto the two guide rods 12e. With this 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] Furthermore, the base 12a is connected to the left-right moving module, which drives the base to slide left and right, thereby moving the socket component 11b left and right. In this embodiment, the left-right moving module uses 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 the same as that of the four-way adjustment function of the buckle adjustment mechanism, and will not be described again 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 commands to the motors to drive the corresponding mechanisms to adaptively adjust their movement. The controller sending action commands to the motors is a conventional technical means, and will not be described in detail here.

[0051] Please refer to Figure 1 The active safety system for the seat also includes a warning system and a passive safety controller. The warning system is integrated into the vehicle and can actively identify impending collisions. The passive safety controller is connected to the backrest angle adjustment module, seat frame tilt adjustment module, seat belt position adjustment module, and the warning system. When the warning system detects a potential collision hazard, it can promptly feed the information back to the passive safety controller. The passive safety controller then sends working instructions to the backrest angle adjustment module, seat frame tilt adjustment module, and seat belt position adjustment module. After receiving the working instructions, the backrest 7 and seat frame 2 can return to the normal sitting posture. After receiving the working instructions, the seat belt position adjustment module can return the seat belt outlet, buckle, and lower anchor point to the optimal restraint state in the normal sitting posture, maximizing the reduction of collision damage.

[0052] After receiving collision information from the warning system, the passive safety controller can quickly return the backrest 7 and seat frame 2 to their normal sitting positions, and the seat belt outlet, buckle, and lower anchor point can quickly return to their optimal restraint state in the normal sitting position. In this embodiment, the backrest 7, seat frame 2, seat belt outlet, buckle, and lower anchor point are all required to return to their normal positions within 0.2 seconds.

[0053] Furthermore, the backrest angle adjustment module, seat frame tilt adjustment module, outlet adjustment mechanism, buckle adjustment mechanism, and lower anchor point adjustment mechanism are all equipped with quick reset devices to ensure that the corresponding backrest, seat frame, seat belt outlet, buckle, and lower anchor point can return to the optimal restraint state in the normal sitting posture of the seat in a short time.

[0054] In this embodiment, the passive safety controller is connected to the active safety controller via feedback. The active safety controller can feed back the optimal safe positions of the backrest 7, seat frame 2, seat belt outlet, buckle, and lower anchor point to the passive safety controller. When the passive safety controller sends working instructions to the backrest angle adjustment module, seat frame tilt adjustment module, and seat belt position adjustment module based on the received collision information, the backrest 7, seat frame 2, seat belt outlet, buckle, and lower anchor point can return to their original positions as quickly as possible based on 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. The headrest angle adjustment module is used to adjust the rotation angle of the headrest 8, and the leg rest angle adjustment module is used to adjust the rotation angle of the leg rest 9. Both the headrest angle adjustment module and the leg rest angle adjustment module are connected to the passive safety controller. After the passive safety controller sends working commands to the headrest angle adjustment module and the leg rest angle adjustment module based on the received collision information, the headrest 8 and the leg rest 9 can quickly return to their normal sitting posture, further improving the safety of the seat.

[0056] like Figure 5 , 10 As shown in Figure 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, and 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 by a pin 6. An adjuster 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 the 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 plate 5 installed on one side of the upper linkage component 3. The collapse plate 5 has a lower connecting hole 5a, an upper collapse channel 5b, and a weakening part 5c formed between the connecting hole 5a and the collapse channel 5b. The upper linkage component 3 has a strip-shaped clearance hole 3a. Both the connecting hole 5a and the collapse channel 5b are exposed in the strip-shaped clearance hole 3a. The collapse plate 5 is a 1mm thick metal part. The collapse plate 5 is welded to the inner side of the upper linkage component 3. This design has the advantages of low cost and high reliability.

[0058] Furthermore, from Figure 7 As can be seen, the weakening part 5c is located on one side of the collapse channel 5b and is an upwardly convex arc surface structure 5c1. The middle of the arc surface structure 5c1 is provided with a downwardly recessed deformation guide groove 5c2. The deformation guide groove 5c2 is an inverted triangular structure that is wider at the top and narrower at the bottom. This design can ensure that the metal sheet that undergoes the collapse reaction is more easily torn and collapses in the preset direction.

[0059] Revisit Figure 8-11The pin 6 is supported within the adapter hole 5a. In zero-gravity mode, when the impact force is greater than the destructive force on the crumple plate 5, the pin 6 can force the weakened part 5c to deform and tear, and move upward into the crumple channel 5b, thereby completing the entire crumple reaction. The crumple is passive, completed through mechanical destruction. The crumple process itself absorbs energy, reducing the impact force on the seat and thus optimizing the injury value to the occupant. When the crumple reaction occurs, the front end of the seat frame 2 will quickly descend as the pin 6 moves upward, and the seat can instantly return to the normal sitting posture mode.

[0060] Please refer to Figure 1 In this embodiment, a backrest 7 is rotatably mounted on the rear end of the seat frame 2. The backrest 7 is equipped with a backrest collapse energy-absorbing structure. After a vehicle collision, the backrest collapse energy-absorbing structure forces the backrest 7 to quickly return to its normal sitting position. A first collapse protection device 13 is installed on the seat frame collapse mechanism, and a second collapse protection device is installed on the backrest collapse energy-absorbing structure. Both the first and second collapse protection devices are connected to a passive safety controller. After the warning system feeds back the accident collision signal to the passive safety controller, the passive safety controller can select to activate the first and / or second collapse protection devices based on the current seat adjustment posture. This allows the seat to maximize occupant protection in different seating positions.

[0061] For example: In zero-gravity mode, both the first and second crumple protection devices are activated simultaneously, allowing the seat frame 2 and backrest 7 to crumple back into their original positions during a collision. In normal seating position mode, the first and second crumple protection devices are deactivated, preventing any crumple during a collision. When only the seat frame 2 is tilted upwards, the first crumple protection device 13 is activated, and the second crumple protection device is deactivated, resulting in only the seat frame 2 crumpling back into its original position. When only the backrest 7 is tilted backwards, the second crumple protection device is activated, and the first crumple protection device 13 is deactivated, resulting in only the backrest 7 crumpling back into its original position.

[0062] Revisit Figure 12 The first collapse protection device 13 includes a block 13a detachably installed in the strip-shaped clearance hole 3a, and a movable traction mechanism 13b for driving the block 13a out of the strip-shaped clearance hole 3a. The movable traction mechanism 13b is connected to the passive safety controller. When the first collapse protection device 13 receives the opening information from the passive safety controller, the movable traction mechanism 13b can drive the block 13a out of the strip-shaped clearance hole 3a, so that the pin 6 breaks through the weakened part 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 that drives the traction rod 13b1 to move back and forth in a straight line. The linear motor 13b2 drives the traction rod 13b1 to move backward in a straight line, which can drag the block 13a out of the strip-shaped clearance hole 3a. Since the execution part of the first collapse protection device 13 is powered by the linear motor 13b2, the passive safety controller sends a command to the linear motor 13b2, which drives the traction rod 13b1 to drag the block 13a out of the strip-shaped clearance hole 3a.

[0064] Based on this, in order to further improve the safety of the seat, other parts of the seat, such as the headrest and footrest, are equipped with a crumple mechanism with the same structure as the seat frame crumple mechanism. Correspondingly, each crumple mechanism is equipped with an Nth crumple protection device that works in the same way as the first crumple protection device 13.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A seat active safety system, characterized in that, include: The seat body includes a backrest angle adjustment module, a seat frame tilt angle adjustment module, and a seat belt position adjustment module. 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 tilt angle adjustment module, and the seat belt position adjustment module. The active safety controller receives adjustment parameters from the backrest angle adjustment module and the seat frame tilt angle adjustment module, and sends working instructions to the seat belt position adjustment module through the received adjustment parameters, so that 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. It also includes a warning system and a passive safety controller, the warning system being integrated into the vehicle for actively identifying collision incidents; The passive safety controller is connected to the backrest angle adjustment module, seat frame tilt adjustment module, seat belt position adjustment module, and warning system. The passive safety controller receives collision information from the warning system and sends working instructions to the backrest angle adjustment module, seat frame tilt adjustment module, and seat belt position adjustment module based on the received collision information. After receiving the working instructions, the backrest angle adjustment module and seat frame tilt adjustment module can return to their normal sitting posture. After receiving the working instructions, the seat belt position adjustment module can return the seat belt outlet, buckle, and lower anchor point to their optimal restraint state in the normal sitting posture. 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 by a pin. The upper linkage component is provided with a seat frame collapse mechanism at the position of the corresponding pin. The rear end of the seat frame is rotatably fitted with a backrest, and the backrest is provided with a backrest collapse energy absorption structure.

2. The active safety system for seats according to claim 1, characterized in that: After receiving the collision information from the warning system, the passive safety controller returns the backrest and seat frame 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 within 0.2 seconds.

3. The active safety system for seats according to claim 2, characterized in that: The backrest angle adjustment module, seat frame tilt adjustment module, outlet adjustment mechanism, buckle adjustment mechanism, and lower anchor point adjustment mechanism are all equipped with quick reset devices 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 posture of the seat in a short time.

4. The active safety system for seats according to claim 1, characterized in that: The seat belt is a three-point seat belt, including an exit component installed on the shoulder side of the backrest, and an insertion 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, used to control the up, down, left, and right movement of the outlet component; The buckle adjustment mechanism has a four-way adjustment function, which is used to control the forward, backward, left and right movement of the plug 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.

5. The active safety system for seats according to claim 4, characterized in that: The buckle adjustment mechanism includes a front-to-back moving module and a left-to-right moving module. The front-to-back moving module includes a base, a transition block that can be slidably mounted on the base, a lead screw that is rotatably mounted on the base, and a motor for driving the lead screw to rotate. The transition block is threaded onto the lead screw, and the plug component is fixedly mounted on the transition block. The base is connected to the left and right moving module, which is used to drive the base to slide left and right.

6. The active safety system for seats according to claim 1, characterized in that: The seat body also includes a headrest angle adjustment module and a leg rest angle adjustment module, both of which are connected to the passive safety controller; After the passive safety controller sends working instructions to the headrest angle adjustment module and the leg rest angle adjustment module through the received collision information, the headrest and leg rest can return to the normal sitting posture.

7. The active safety system for seats according to claim 1, characterized in that: An angle adjuster is provided between the lower linkage component and the base; after a vehicle collision, the seat frame collapse mechanism can force the seat frame to quickly return to the normal sitting position.

8. The active safety system for seats according to claim 7, characterized in that: A first crumple protection device is installed on the seat frame crumple mechanism, and a second crumple protection device is installed on the backrest crumple energy absorption structure. Both the first and second crumple protection devices are 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 to open the first and / or second crumple protection devices.

9. The active safety system for seats according to claim 1, characterized in that: The active safety controller is connected to an information acquisition module, which can acquire occupant information through 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.

Images