WO2024020999A1

WO2024020999A1 - Collision protection device and method, seat, vehicle, and storage medium

Info

Publication number: WO2024020999A1
Application number: PCT/CN2022/108880
Authority: WO
Inventors: 孙呈祥; 王辉; 孙晓宇
Original assignee: 华为技术有限公司
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2024-02-01

Abstract

The present application relates to the technical field of vehicles, in particular to a collision protection device and method, a seat, a vehicle, and a storage medium. The collision protection device comprises: a mounting frame, wherein the mounting frame is provided with a track; a first sliding shaft, which is mounted on the track and can move relative to the mounting frame; a limiting mechanism, wherein the limiting mechanism can lock or unlock the first sliding shaft to or from the mounting frame; and a first execution mechanism, which is configured to drive the seat to move, wherein the first execution mechanism is configured to trigger the first sliding shaft to move along the track in a first direction. The first execution mechanism triggers the first sliding shaft to drive the seat to move in the first direction, so that the seat pulls a driver or a passenger away from a collision side, thereby effectively reducing the degree of injuries to the driver or the passenger, increasing the safety distance between the driver or the passenger and a vehicle instrument panel, and reducing the risk that the driver or the passenger is crushed by the vehicle instrument panel.

Description

Crash protection device, method, seat, vehicle and storage medium

Technical field

The present application relates to the field of vehicle technology, and in particular to a collision protection device method, a seat, a vehicle and a storage medium.

Background technique

With the increasing importance of cars to human daily life, cars have become an essential part of every modern person's life. As cars get better and more advanced, the risk or cost of a possible crash also gets higher. Injuries caused in a car accident are generally divided into deceleration injuries, impact injuries, crushing injuries, squeezing injuries and falling injuries. Deceleration injuries are injuries caused by the sudden and rapid deceleration inertia of a vehicle. The most common injuries are injuries to the brain, cervical spine, aorta, and heart. Impact injuries are usually caused by a direct impact from a car. Rolling contusions and crushing injuries are mostly caused by vehicle crushing and contusions. Crushing injuries refer to injuries caused by being squeezed by the deformed carriage, body and cab at the same time, ultimately causing serious and irreversible injuries. And when a car crashes, the deformed front cabin causes the driver and passengers to be trapped in the car, delaying the best rescue time.

Application content

This application provides a collision protection device, method, seat, vehicle and storage medium, aiming to expand the activity space of the driver and passengers when a vehicle collides, and effectively reduce the degree of injury to the driver and passengers.

A first aspect of this application provides a collision protection device, which includes:

A mounting frame for connecting to the vehicle, the mounting frame is provided with a track;

A first sliding shaft for connecting with the seat, the first sliding shaft is installed on the track and can move relative to the mounting frame;

A limiting mechanism capable of locking or unlocking the first sliding shaft and the mounting bracket;

The first actuator is used to drive the seat movement;

Wherein, the first actuator is used to trigger the first slide shaft to move in the first direction along the track;

In this application, the first actuator is installed on the mounting frame, which is fixedly connected to the vehicle. The mounting frame also includes a connecting piece. At least part of the first sliding shaft is fixedly connected to the seat through the connecting piece, so that the first sliding shaft moves along the track. It can drive the seat to move during exercise. The first direction is the direction opposite to the traveling direction of the vehicle. When the vehicle does not collide, the limiting mechanism can lock the first sliding shaft and the mounting frame so that the first sliding shaft is stably arranged in the track to ensure the stability of the seat when the vehicle does not collide. When the vehicle collides or is about to collide, the first actuator is triggered to push the first sliding shaft to move in the first direction, so that the first sliding shaft drives the seat to move in the first direction away from the collision side, thereby causing the seat to move away from the collision side. The chair pulls the driver and passengers away from the collision side, effectively reducing the degree of injury to the driver and passengers, increasing the safe distance between the driver and passengers and the vehicle dashboard, reducing the risk of the driver and passengers being squeezed by the vehicle dashboard, and expanding the safety of the driver and passengers. activity space and rescue space.

In a possible design, when the first sliding shaft is pushed to move in the second direction along the track, the limiting mechanism can unlock the first sliding shaft and the mounting bracket, so that the The first sliding shaft can move toward the first direction; the first direction is opposite to the second direction.

In this application, the second direction is the direction in which the vehicle is traveling. When the vehicle collides or is about to collide, due to the greater acceleration of the vehicle, the driver and the seat generate inertia in the second direction, causing the seat to drive the first slide. The shaft moves in the second direction along the track. When the first sliding shaft is pushed to move in the second direction, the limiting mechanism exerts a driving force to unlock the first sliding shaft and the mounting bracket, so that the first sliding shaft can be subsequently moved. The first actuator promotes movement in the first direction.

In a possible design, the limiting mechanism includes a first limiting member, and the first limiting member can limit the movement of the first sliding shaft in the second direction.

In this application, the first limiter is installed in the track of the installation frame. One end of the first limiter is in contact with one end of the first sliding shaft, and the other end of the first limiter is in contact with the side wall of the track. The thrust exerted by the first limiting member on the first sliding shaft stabilizes the first sliding shaft in the slide rail to limit the movement of the seat in the second direction due to inertia or shock and keep the seat in a stable state.

In a possible design, the limiting mechanism includes a second limiting member;

When the first sliding shaft is locked with the mounting bracket, the second limiting member can limit the movement of the first sliding shaft in the first direction;

When the first sliding shaft is triggered to move in the first direction along the track, the second limiting member can limit the movement of the first sliding shaft in the second direction.

In this application, the second limiting member is in contact with an end of the first sliding shaft away from the first limiting member, so that the thrust exerted by the first limiting member and the second limiting member on the first sliding shaft makes the first sliding shaft The shaft is stabilized in the slide rail. When the first sliding shaft is pushed along the track to move in the first direction, at least part of the second limiting member cooperates with the first sliding shaft to limit the movement of the first sliding shaft in the second direction to limit the seat due to inertia or After being shocked, the vehicle moves in the second direction closer to the collision side, thereby reducing the risk of secondary injury to the driver and passengers. At this time, the second limiting member does not restrict the first sliding shaft from continuing to move in the first direction.

Among them, when the vehicle is subject to a small collision or a small acceleration, the force exerted by the seat on the first sliding shaft due to inertia fails to reach the preset value of the force required by the limiting mechanism to unlock the first sliding shaft and the mounting bracket. The limiting member still limits the movement of the first sliding shaft in the second direction, and the second limiting member still limits the movement of the first sliding shaft in the first direction. When the force exerted by the seat on the first sliding shaft due to inertia reaches the preset value of the force required by the limiting mechanism to release the lock between the first sliding shaft and the mounting bracket, the seat drives the first sliding shaft to move in the second direction.

In a possible design, the second limiting member includes double anti-stop claws, and the double anti-direction claws are provided with a first claw;

When the first sliding shaft and the mounting bracket are in a locked state, the first claw abuts the end surface of the first sliding shaft to restrict the movement of the first sliding shaft in the first direction.

In this application, when the vehicle does not collide, the first claw is in contact with the end surface of the first sliding shaft, and the first claw restricts the movement of the first sliding shaft in the first direction along the track, so that the first sliding shaft and the mounting bracket are in a locked state. state to ensure that the seat is in a stable state.

In one possible design, the double-stop claw is provided with a second claw;

When the first sliding shaft moves in the second direction along the track, the first claw and the second claw rotate relative to the first sliding shaft.

In this application, when the first sliding shaft is pushed by the seat to move in the second direction, the first sliding shaft moves away from the first claw, causing the first claw to separate from the end surface of the first sliding shaft, and the first sliding shaft cancels the need for the first sliding shaft. The rotation constraints of the claw and the second claw enable the first claw and the second claw to rotate, and the first claw also cancels the constraint on the movement of the first sliding shaft in the first direction. In a possible design, when the first sliding shaft is triggered to move in the second direction along the track, the second claw can restrict the movement of the first sliding shaft in the second direction.

In this application, when the first sliding shaft moves in the first direction along the track, at least part of the second sliding shaft extends out of the track. At this time, at least part of the second claw cooperates with the first sliding shaft, so that the second claw The first sliding shaft is restricted from moving in the second direction, that is, the seat is restricted from moving toward the collision side of the vehicle, but the second claw does not restrict the movement of the first sliding shaft in the second direction, that is, the seat can also move toward the collision side away from the vehicle. .

In a possible design, the first sliding shaft is provided with a plurality of first grooves, and the plurality of first grooves are distributed along the axial direction of the first sliding shaft;

The second claw can cooperate with one of the first grooves to limit the movement of the first sliding shaft in the second direction.

In this application, the first groove is provided with a vertical section and an inclined conical surface. When the first sliding shaft moves in the first direction, the second claw can slide through the inclined conical surface of the first groove, so that the first sliding shaft can continue to move. Movement in the first direction. When the first sliding shaft tends to move in the second direction, the second claw abuts the vertical section of the first groove to restrict the movement of the first sliding shaft in the second direction.

In a possible design, the first limiting member includes a first elastic member, one end of the first elastic member is connected to the track, and the other end of the first elastic member is connected to the first sliding member. shaft connection;

The second limiting member also includes a second elastic member, one end of the second elastic member is connected to the mounting bracket, and the other end of the second elastic member is connected to the double-stop claw;

When the first sliding shaft is pushed to move in the second direction, the first sliding shaft can move in the second direction against the first elastic member, and the second elastic member can move in the second direction under the action of its elastic force. The double-stop claws are driven to rotate.

In this application, when the thrust exerted by the seat on the first sliding shaft due to inertia is greater than the pre-pressure of the first elastic member, the first sliding shaft compresses the first elastic member and moves toward the second direction. During the directional movement, the second limiting member can be separated from the first sliding shaft, so that the first limiting member and the second limiting member unlock the first sliding shaft and the mounting bracket.

The first elastic member may be a spring. The second elastic member can be a torsion spring, and the torsion spring makes the first claw contact the end surface of the first sliding shaft through its pretightening force. The first elastic member and the second elastic member exert opposite forces on the first sliding shaft, so that the first sliding shaft is in a stable state. And when the first claw breaks away from the end face of the first sliding shaft, the torsion spring drives the double check claws to rotate counterclockwise through its pretightening force, so that the second claw meshes with the first groove. The rotation direction of the double stop pawl is set by using a torsion spring.

In one possible design, the collision protection device is provided with a fuel chamber, and the fuel chamber contains explosive powder;

The first actuator is an ignition component. When the ignition component is triggered, the first sliding shaft is pushed to move in the first direction.

In this application, the fuel chamber is located between the two rails. After the detonation component ignites the explosive powder, the explosive powder quickly explodes in the fuel chamber to generate air waves. The air waves quickly impact the two rails, and the impact force acts evenly on the first two rails on both sides. The sliding shaft (or a first sliding shaft and a second sliding shaft) is used to push the two first sliding shafts to move in the first direction synchronously to ensure the stability of the movement of the seat driven by the first sliding shaft.

The two first sliding shafts are moved by using the air wave generated by the explosive powder explosion to realize the rapid movement of the seat away from the collision side of the vehicle.

Among them, a piston is provided at one end of the first sliding shaft close to the fuel chamber, which seals the connection between the fuel chamber and the track, reduces the risk of air wave leakage, and enables the air waves to push the movement of the first sliding shaft.

The explosive powder can be sodium azide.

In a possible design, the collision protection device further includes a second actuator for connecting with the seat;

When a collision occurs at the first position of the vehicle, the second actuator can drive the seat to rotate toward a side away from the first position.

In this application, the first position of the vehicle is a certain position along the width direction of the vehicle, and the third direction is the direction away from the collision of the vehicle. In the event of a lateral collision of the vehicle, the second actuator can control the rotation of the seat to move the occupant away from the collision side of the vehicle.

In a possible design, the second actuator is an airbag, and the airbag is inflated when a collision occurs at the first position of the vehicle.

In this application, there is solid powder inside the airbag. When a vehicle collides laterally, the solid powder is ignited and explodes to produce gas, which rapidly expands the second actuator, causing the seat on the side of the second actuator to be raised and rotated in the third direction to keep the occupants away from the collision side. Reduce the risk of injury to passengers.

In a possible design, the seat rotates in a third direction around the first sliding axis away from the first position.

In this application, the collision protection device also includes a support block. The support block is installed between the first sliding shaft and the seat. The second actuator is installed between the other first sliding shaft and the seat. When the vehicle is running normally, the supporting block The block is at the same height as the second actuator, keeping the seat stable. Among them, the installation position of the second actuator on the main driver's seat is different from that on the passenger seat, so that when the main driver's side or the passenger's side of the vehicle is collided, the collision of the second actuator can drive the main driver's The seat or passenger's seat rotates away from the side of the collision. For example, because the left side of the main driver's seat in a left-hand drive vehicle is close to the door, the second actuator of the main driver's seat is installed on the lower left side, and the support block is installed on the lower right side. The right side of the passenger's seat is close to the door. The second actuator of the chair is installed on the lower right side, and the support block is installed on the lower left side. Because the right side of the main driver's seat in a right-hand drive vehicle is close to the door, the second actuator of the main driver's seat is installed on the lower right side, and the support block is installed on the lower left side. The left side of the co-pilot's seat is close to the door. The second actuator is installed on the lower left side, and the support block is installed on the lower right side. Specifically, when the vehicle of the second actuator collides laterally, the second actuator expands rapidly. At this time, the height of the support block remains unchanged, causing the seat on the side of the second actuator to be raised and rotated around the first sliding axis toward the third actuator. Rotate in three directions to keep the occupants away from the collision side and reduce the risk of injury to the occupants.

Among them, the solid powder can be sodium azide.

In a possible design, the collision protection device is provided with a third limiting member, and the third limiting member cooperates with the first sliding shaft to limit the first sliding shaft from driving the seat. Turn in the fourth direction;

The third direction is opposite to the fourth direction.

In this application, the third limiter is installed on the mounting bracket. When the first slide shaft is moved in the third direction by the thrust of the seat, the third limiter cooperates with the first slide shaft to limit the first slide shaft to move in the third direction. Rotate in the fourth direction to restrict the seat from moving in the fourth direction closer to the collision side due to inertia or shock, thereby reducing the risk of secondary injury to the driver and passengers, and the third limiter does not restrict the first slide shaft from continuing to move toward the collision side. The third direction of rotation means that the seat and the driver can continue to rotate away from the collision side.

In a possible design, the third limiting member includes a pawl, the first sliding shaft is provided with a plurality of second grooves, and the plurality of second grooves are along the circumferential direction of the first sliding shaft. distributed;

The pawl can cooperate with one of the second grooves to limit the rotation of the first sliding shaft in the fourth direction.

In this application, the second groove is provided with a vertical section and an inclined tapered surface. When the first sliding shaft rotates toward the third direction, the pawl can slide through the inclined tapered surface of the second groove, so that the first sliding shaft can continue to move toward the third direction. Three-way rotation. When the first sliding shaft has a tendency to move in the fourth direction, the pawl abuts against the vertical section of the second slot, so that the pawl is in mesh with one of the second slots to restrict the first sliding shaft from moving in the fourth direction. Turn.

In a possible design, the third limiting member further includes a third elastic member, one end of the third elastic member is connected to the mounting bracket, and the other end of the third elastic member is connected to the ratchet. Claw connection;

When the first sliding shaft is pushed to rotate in the third direction, the third elastic member drives the pawl to fit with the first sliding shaft under its elastic force, so that the first sliding shaft When the shaft is not rotating, the pawl can cooperate with one of the second grooves.

In this application, the third elastic member can be a torsion spring. When the first sliding shaft rotates, the torsion spring uses its pretightening force to make the pawl and the first sliding shaft in a fit state. After the rotation of the first sliding shaft is completed, the torsion spring The pretightening force causes the pawl to abut one of the second grooves to restrict the first sliding shaft from rotating in the fourth direction.

A second aspect of this application provides a collision protection method, which method includes:

Obtain a first acceleration, where the first acceleration is the vehicle acceleration along the vehicle's traveling direction;

When the first acceleration is greater than the first threshold, the seat is controlled to move in the first direction.

In this application, a first threshold is preset in the processor. After the vehicle is started, the processor can obtain the first acceleration of the vehicle in the driving direction in real time. If the first acceleration is greater than the prestored first threshold, the processor can Activate the collision protection device to control the seat to move in the first direction to move the seat away from the collision side.

In a possible design, when detecting that the first acceleration is greater than the first threshold, the method further includes:

Unlock the first slide.

In this application, the first sliding shaft connects the mounting frame and the seat, and the mounting frame is installed on the vehicle. When the vehicle does not collide, the first sliding shaft and the mounting frame are in a locked state, that is, the seat is in a locked state. When the first sensor detects that the first acceleration of the vehicle is greater than the first threshold, the first sliding shaft and the mounting bracket can be unlocked, so that the seat can be unlocked and moved in the first direction.

In one possible design, the collision protection device is activated, the limiting mechanism unlocks the first sliding shaft and the mounting bracket, and the first actuator triggers the first sliding shaft to drive the seat to move in the first direction.

In this application, in practical applications, when a vehicle collides along the driving direction, the first sensor detects the first acceleration of the vehicle and sends a first signal to the processor. The processor receives the first signal and determines whether the first signal reaches the preset value. a certain first threshold. If the first signal reaches the first threshold, the processor starts the collision protection device, that is, the processor starts the first actuator to ignite the explosive powder in the fuel chamber, causing the explosive powder to rapidly explode in the fuel chamber to generate air waves. The impact hits the two rails, and the impact force acts evenly on the first sliding shafts on both sides. At the same time, the limiting mechanism can unlock the first sliding shaft and the mounting bracket, and the air wave pushes the two first sliding shafts synchronously toward the first direction. movement, thereby driving the seat to move in the first direction away from the collision side.

In a possible design, when the first acceleration is detected to be less than the first threshold, the collision protection device is not activated.

In this application, in practical applications, when a vehicle collides along the driving direction, the first sensor detects the first acceleration of the vehicle and sends a first signal to the processor. The processor receives the first signal and determines whether the first signal reaches the preset value. a certain first threshold. If the first signal does not reach the first threshold, the processor does not start the collision protection device and the seat is in a stable state.

In one possible design, the method includes:

Obtaining a second acceleration, the second acceleration being an acceleration along a direction perpendicular to the traveling direction of the vehicle;

When the second acceleration is greater than the second threshold, the seat is controlled to rotate in a third direction.

In this application, a second threshold is preset in the processor. After the vehicle is started, the processor can obtain the second acceleration of the vehicle perpendicular to the driving direction in real time. If the second acceleration is greater than the prestored second threshold, the processor The device can activate the collision protection device to control the seat to rotate in the third direction to move the seat away from the collision side.

In one possible design, the method includes:

When it is detected that the second acceleration is greater than the second threshold, the collision protection device is activated, and the second actuator expands to rotate the seat around the first sliding axis in the third direction.

In this application, in practical applications, when the first actuator vehicle encounters a lateral collision, the second sensor detects the second acceleration of the vehicle and sends a second signal to the processor. The processor releases the second signal and determines whether the second signal reaches preset second threshold. If the second signal reaches the second preset threshold, the processor starts the collision protection device, that is, the processor starts to ignite the solid powder of the second actuator, and the solid powder explodes to generate gas, causing the second actuator to rapidly expand. The seat on the side where the mechanism is located is raised, and the seat rotates around the first sliding axis in the third direction to keep the occupant away from the collision side.

In one possible design, the method includes:

When the second acceleration is detected to be less than the second threshold, the collision protection device is not activated;

In this application, in practical applications, when the first actuator vehicle encounters a lateral collision, the second sensor detects the second acceleration of the vehicle and sends a second signal to the processor. The processor releases the second signal and determines whether the second signal reaches preset second threshold. If the second signal does not reach the second threshold, the processor does not start the collision protection device and the seat is in a stable state.

The first sensor and the second sensor are acceleration sensors. Alternatively, one sensor may be used to detect the first acceleration and the second acceleration.

A third aspect of this application also provides a seat, including the above-mentioned collision protection device.

In this application, the seat includes a seat body and a collision protection device. The seat body is provided with a mounting part, and the collision protection device is provided with a matching part. The connection between the seat body and the collision protection device is realized through the cooperation between the mounting part and the matching part.

A fourth aspect of this application provides a vehicle, which includes:

Body:

A seat is installed on the vehicle body, and the seat is the above-mentioned seat.

A fifth aspect of the present application provides a storage medium that stores executable instructions. When the executable instructions are loaded and executed by a processor, the method as described above is implemented.

It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application.

Description of drawings

Figure 1 is a schematic structural diagram of a specific embodiment of the collision protection device provided by the present application;

Figure 2 is a schematic structural diagram of the collision protection device provided by this application installed on the seat;

Figure 3 is a schematic structural diagram of the seat moved by the collision protection device provided by this application;

Figure 4 is an exploded schematic diagram of the collision protection device provided by this application installed on the seat;

Figure 5 is a schematic structural diagram of part A in Figure 2;

Figure 6 is a schematic structural diagram of the first sliding shaft moving in the second direction in Figure 5;

Figure 7 is a schematic structural diagram of part B in Figure 3;

Figure 8 is a schematic diagram of the collision protection device in Figure 5 in another specific embodiment;

Figure 9 is a schematic structural diagram of part C in Figure 3;

Figure 10 is a schematic structural diagram of the collision protection device provided by the present application in another specific embodiment;

Figure 11 is a schematic structural diagram of the collision protection device provided by this application after the seat is driven to rotate;

Figure 12 is a schematic structural diagram of part D in Figure 11.

Reference signs:

1-collision protection device, 11-mounting frame, 111-track, 112-fuel chamber, 113-connector, 12-first sliding shaft, 121, first slot, 122-second slot, 13-first limit parts, 14-second limiter, 141-double check claw, 141a-first claw, 141b-second claw, 142-second elastic member, 15-second actuator, 16-third limiter , 161-pawl, 162-third elastic member, 17-second sliding shaft, 18-single check pawl, 19-support block, 2-seat.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Detailed ways

In order to better understand the technical solution of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The terminology used in the embodiments of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. As used in the embodiments and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" used in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and A exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be noted that the directional words such as "upper", "lower", "left" and "right" described in the embodiments of this application are described from the perspective shown in the drawings and should not be understood as limiting the implementation of this application. Example limitations. Additionally, it should be understood in this context that when an element is referred to as being connected "on" or "under" another element, it can not only be directly connected "on" or "under" the other element, but also can be directly connected "on" or "under" the other element. Indirectly connected "on" or "below" another element through an intermediate element.

As shown in FIGS. 1 to 4 , this embodiment provides a collision protection device 1 for a vehicle seat 2 . The collision protection device 1 includes a mounting frame 11, a first sliding shaft 12, a limiting mechanism and a first actuator. The mounting frame 11 is used to connect with the vehicle. The mounting frame 11 is provided with a track 111. The first sliding shaft 12 is used to connect with the vehicle. The seat 2 is connected, and the first sliding shaft 12 is installed on the track 111 and can move relative to the mounting bracket 11; the limiting mechanism can lock or unlock the first sliding shaft 12 and the mounting bracket 11; the first actuator is installed on the mounting bracket. 11, used to drive the movement of the seat 2; wherein, the first actuator is used to trigger the first sliding shaft 12 to move in the first direction F along the track 111. The first direction F is the direction opposite to the vehicle traveling direction.

When the first sliding shaft 12 is pushed to move in the second direction E along the track 111, the limiting mechanism can unlock the first sliding shaft 12 and the mounting bracket 11. The first direction F is opposite to the second direction E. The second direction E is the direction in which the vehicle travels. In this embodiment, the mounting bracket 11 is fixedly connected to the vehicle, and at least part of the first sliding shaft 12 is fixedly connected to the seat 2. The mounting bracket 11 also includes a connecting piece 113, and at least part of the first sliding shaft 12 is connected to the seat 2 through the connecting piece. The chair 2 is fixedly connected, so that when the first sliding shaft 12 moves along the track 111, it can drive the seat 2 to move. When the vehicle does not collide, the limiting mechanism can lock the first sliding shaft 12 and the mounting bracket 11, that is, restrict the movement of the first sliding shaft 12, so that the first sliding shaft 12 can be stably arranged in the track 111 to ensure that the vehicle does not collide. Stability of seat 2 in the event of a collision. When a vehicle collides or is about to collide, due to the braking and deceleration of the vehicle, the driver and the seat 2 generate inertia in the second direction E, causing the seat 2 to drive the first sliding shaft 12 to move along the track 111 in the second direction E. When the first sliding shaft 12 is pushed to move in the second direction E, the limiting mechanism exerts a driving force to unlock the first sliding shaft 12 and the mounting bracket 11 . At the same time, the first actuator is triggered to drive the first sliding shaft 12 to move in the second direction E, so as to drive the seat 2 to move in the second direction E away from the collision side, thereby causing the seat 2 to move the driver and passengers away from the collision side, effectively Reduce the degree of injury to drivers and passengers, increase the safe distance between drivers and passengers and the vehicle dashboard, reduce the risk of drivers and passengers being squeezed by the vehicle dashboard, and expand the activity space and rescue space for drivers and passengers.

Specifically, as shown in Figures 5 to 7, the limiting mechanism includes a first limiting member 13 and a second limiting member 14. The first limiting member 13 can limit the movement of the first sliding shaft 12 in the second direction E, The second limiting member 14 can limit the movement of the first sliding shaft 12 in the first direction F; when the first sliding shaft 12 is triggered to move in the first direction F along the track 111, the second limiting member 14 can limit the first sliding shaft 12. 12Move in the second direction E.

In this embodiment, when the vehicle is in a stable driving state, the first limiting member 13 is in contact with one end of the first sliding shaft 12, and the second limiting member 14 is in contact with the other end of the first sliding shaft 12, so that the second limiting member 13 is in contact with the other end of the first sliding shaft 12. The thrust exerted by the first limiting member 13 and the second limiting member 14 on the first sliding shaft 12 stabilizes the first sliding shaft 12 in the slide rail. When the vehicle collides or is about to collide, it brakes suddenly and the first actuator is triggered. The first sliding shaft 12 is pushed along the track 111 to move in the first direction F, so that the seat 2 can move backward quickly and reduce the number of people carrying the frame. Risk of being squeezed. When the first sliding shaft 12 is pushed to move in the first direction F along the track 111, at least part of the second limiting member 14 cooperates with the first sliding shaft 12 to restrict the movement of the first sliding shaft 12 in the second direction E. The seat 2 moves in the second direction E close to the collision side due to inertia or shock, thereby reducing the risk of secondary injury to the driver and passengers. At this time, the second limiting member 14 does not restrict the first sliding shaft 12 from continuing to move in the first direction F.

Among them, when the vehicle is subject to a small collision or a sudden acceleration is small, the force exerted by the seat 2 on the first sliding shaft 12 due to inertia cannot reach the force required by the limiting mechanism to release the locking of the first sliding shaft 12 and the mounting bracket 11 At the preset value, the first limiting member 13 still restricts the first sliding shaft 12 from moving in the second direction E, and the second limiting member 14 still restricts the first sliding shaft 12 from moving in the first direction F. When the force exerted by the seat 2 on the first sliding shaft 12 due to inertia reaches the preset value of the force required by the limiting mechanism to release the locking of the first sliding shaft 12 and the mounting bracket 11, the seat 2 drives the first sliding shaft 12 toward the first sliding shaft 12. Movement in two directions E.

As shown in Figures 5 to 7, the first limiting member 13 includes a first elastic member, one end of the first elastic member is connected to the track 111, and the other end of the first elastic member is connected to the first sliding shaft 12; When the shaft 12 is pushed to move in the second direction E, the first sliding shaft 12 can move in the second direction E against the first elastic member. In this embodiment, when the thrust exerted by the seat 2 on the first sliding shaft 12 due to inertia is greater than the pre-pressure of the first elastic member, the first sliding shaft 12 compresses the first elastic member and moves toward the second direction E. In the first When the sliding shaft 12 moves in the second direction E, the second limiting member 14 can be separated from the first sliding shaft 12 to realize that the first limiting member 13 and the second limiting member 14 release the interference between the first sliding shaft 12 and the first sliding shaft 14 . Locking of mounting bracket 11.

Wherein, the first elastic member may be a spring.

As shown in FIGS. 4 to 7 , the second limiting member 14 includes a double stop claw 141 . The double stop claw 141 is provided with a first claw 141 a and a second claw 141 b . One end of the first claw 141 a and the second claw 141 b are connected at one end, and the two have an included angle after being connected. When the first sliding shaft 12 and the mounting bracket 11 are in a locked state, the first claw 141a contacts the end surface of the first sliding shaft 12 to restrict the movement of the first sliding shaft 12 in the first direction F; the first sliding shaft 12 moves along the track During the movement of 111, the first claw 141a and the second claw 141b rotate relative to the first sliding shaft 12; after the first sliding shaft 12 completes its movement along the track 111, the second claw 141b can restrict the first sliding shaft 12 to move in the second direction E. sports.

In this embodiment, when the vehicle does not collide, the first claw 141a is in contact with the end surface of the first sliding shaft 12, and the first claw 141a restricts the movement of the first sliding shaft 12 along the track 111 in the first direction F, so that the first sliding shaft 12 can move along the track 111 in the first direction F. The sliding shaft 12 and the mounting bracket 11 are in a locked state to ensure that the seat 2 is in a stable state. When the first sliding shaft 12 moves in the second direction E along the track 111 due to the thrust of the seat 2, the first sliding shaft 12 moves away from the first claw 141a, and the first claw 141a separates from the end surface of the first sliding shaft 12. The sliding shaft 12 cancels the restriction on the rotation of the first claw 141a and the second claw 141b. The first claw 141a and the second claw 141b can rotate. The first claw 141a also cancels the restriction on the first sliding shaft 12 facing the first direction. F motion constraints. When the first sliding shaft 12 is pushed toward the first direction F along the track 111, at least part of the second sliding shaft 17 protrudes from the track 111. After the movement of the first sliding shaft 12 along the track 111 is completed, at least part of the second claw 141b Partially cooperates with the first sliding shaft 12 to limit the movement of the first sliding shaft 12 in the second direction E and reduce the risk of the seat 2 moving toward the collision side of the vehicle, but the second claw 141b does not limit the first sliding shaft 12 Moving in the second direction E allows the seat 2 to continue to move toward the collision side away from the vehicle, so that the occupants can escape.

As shown in Figures 4 to 7, the first sliding shaft 12 is provided with a plurality of first grooves 121, and the plurality of first grooves 121 are distributed along the axial direction of the first sliding shaft 12; the second claw 141b can interact with one of the first grooves 121. The groove 121 cooperates to restrict the movement of the first sliding shaft 12 in the second direction E.

In this embodiment, the first groove 121 is provided with a vertical section and an inclined tapered surface. When the first sliding shaft 12 moves in the first direction F, the second claw 141b can slide through the inclined tapered surface of the first groove 121, so that The first sliding shaft 12 can continue to move in the first direction F. When the first sliding shaft 12 tends to move in the second direction E, the second claw 141b contacts the vertical section of the first groove 121 to restrict the movement of the first sliding shaft 12 in the second direction E.

As shown in FIGS. 4 to 7 , the second limiting member 14 also includes a second elastic member 142 , one end of the second elastic member 142 is connected to the mounting bracket 11 , and the other end of the second elastic member 142 is connected to the double stop claw 141 connection, when the first claw 141a is separated from the end surface of the first sliding shaft 12, the second elastic member 142 drives the double check claws 141 to rotate counterclockwise under the action of its elastic force, so that the second claw 141b can engage with the first groove 121 Vertical sections butt.

The second elastic member 142 can be a torsion spring, and the torsion spring uses its pretightening force to make the first claw 141a contact the end surface of the first sliding shaft 12 . The first elastic member and the second elastic member 142 exert opposite forces on the first sliding shaft 12 so that the first sliding shaft 12 is in a stable state. And when the first claw 141a is separated from the end surface of the first sliding shaft 12, the torsion spring drives the double check claw 141 to rotate counterclockwise through its preload force, so that the second claw 141b meshes with the first groove 121. The rotation direction of the double stop pawl 141 is set by using a torsion spring.

As shown in Figures 4 and 8, in one possible design, the collision protection device 1 can be configured as a symmetrical structure along the driving direction of the vehicle. The mounting bracket 11 is provided with two rails 111 and two first sliding shafts 12 Corresponding to the sliding connection with the two rails 111, the two first sliding shafts 12 are connected with the seat 2, and the two first sliding shafts 12 drive the movement of the seat 2 to improve the stability of the movement of the seat 2. Alternatively, the collision protection device 1 further includes a second sliding shaft 17 and a single anti-stop pawl 18 , one of the first sliding shafts 12 is replaced with a second sliding shaft 17 , and one of the pair of anti-direction pawls 141 is replaced with a single anti-direction pawl 18 . The single stop pawl 18 only limits the movement of the second sliding shaft 17 in the first direction F. In this embodiment, a double stop claw 141 can be used to limit the position of the seat 2 to restrict its movement to the collision side. Replacing the cooperation between the double stop pawl 141 and the second sliding shaft 12 on the lower side of the seat 2 with the cooperation between the single stop pawl 18 and the second sliding shaft 17 is compared to using the double stop pawl 141 and the first sliding shaft. The cooperation of 12 can reduce production costs.

Further, as shown in Figure 9, the mounting bracket 11 is provided with a fuel chamber 112, and the fuel chamber 112 contains explosive powder. The first actuator is an ignition component. When the ignition component is triggered, the first sliding shaft 12 is pushed toward Movement in the second direction E. In this embodiment, the fuel chamber 112 is located between the two rails 111. After the first actuator ignites the explosive powder, the explosive powder quickly explodes in the fuel chamber 112 to generate an air wave. The air wave quickly impacts the two rails 111. The impact of the air wave The force acts evenly on the first sliding shafts 12 (or a first sliding shaft 12 and a second sliding shaft 17) on both sides to push the two first sliding shafts 12 to move in the second direction E synchronously, ensuring that the first sliding shaft 12 and the second sliding shaft 17 move simultaneously in the second direction E. The sliding shaft 12 drives the stability of the movement of the seat 2.

The two first sliding shafts 12 are pushed to move by using the air wave generated by the explosion of explosive powder, so that the seat 2 can quickly move away from the collision side of the vehicle.

Among them, a piston is provided at one end of the first sliding shaft 12 close to the fuel chamber 112, which seals the connection between the fuel chamber 112 and the track 111, reduces the risk of air wave leakage, and ensures that the air wave promotes the movement of the first sliding shaft 12. stability.

The explosive powder can be sodium azide.

As shown in Figures 10 and 11, in one possible design, the collision protection device 1 also includes a second actuator 15 for connecting with the seat 2; when the first position of the vehicle is collided, the second actuator 15 The seat 2 can be driven to rotate toward the side away from the first position.

In this embodiment, the first position of the vehicle is a certain position along the width direction of the vehicle, and the third direction X is a direction away from the collision of the vehicle. The second actuator may be a third elastic member. When the vehicle does not collide, the third elastic member is always in a compressed state. When the vehicle collides or when a collision is imminent and the vehicle brakes suddenly, the compression state of the third elastic member is released, causing it to It uses its own rebound force to push the seat to rotate.

Alternatively, the second actuator 15 is an air bag, and the air bag contains solid powder. When a vehicle collides laterally, the solid powder is ignited and explodes to produce gas, which rapidly inflates the airbag, causing the seat 2 on the side where the airbag is located to be raised and rotated in the third direction Risk of injury to personnel.

The seat 2 rotates toward the third direction X around the first sliding axis 12 away from the first position. In this embodiment, the collision protection device 1 also includes a support block 19. The support block 19 is installed between the first sliding shaft 12 and the seat 2. The second actuator 15 is installed between the other first sliding shaft 12 and the seat 2. When the vehicle is running normally, the heights of the support block 19 and the second actuator 15 are consistent to keep the seat 2 stable. Among them, the installation position of the second actuator 15 on the main driver's seat 2 is different from the installation position on the passenger seat 2, so that when the main driver's side or the passenger's side of the vehicle is collided, the second actuator 15 can drive The main driver's seat 2 or the passenger's seat 2 rotates away from the collided side. For example, because the left side of the main driver of a left-hand drive vehicle is close to the door, the second actuator 15 of the main driver's seat is installed on the lower left side, and the support block 19 is installed on the lower right side. Since the right side of the co-pilot is close to the door, The second actuator 15 of the passenger seat is installed on the lower right side, and the support block 19 is installed on the lower left side. Because the right side of the main driver's seat in a right-hand drive vehicle is close to the door, the second actuator 15 of the main driver's seat is installed on the lower right side, and the support block 19 is installed on the lower left side. The left side of the passenger's seat is close to the door. The second actuator 15 of the chair is installed on the lower left side, and the support block 19 is installed on the lower right side. Specifically, when the vehicle encounters a lateral collision, the second actuator 15 is quickly triggered. At this time, the height of the support block 19 remains unchanged, causing the seat 2 on the side of the second actuator 15 to be raised around the first sliding axis 12 Rotate in the third direction X to keep the occupants away from the collision side and reduce the risk of injury to the occupants.

Among them, the solid powder can be sodium azide. The gas produced by the explosive powder explosion is used to push the seat to rotate, so that the seat can quickly move away from the collision side of the vehicle.

Further, as shown in Figure 12, the collision protection device 1 is provided with a third limiting member 16. The third limiting member 16 cooperates with the first sliding shaft 12 to limit the first sliding shaft 12 from driving the seat 2 toward the fourth direction. Rotate in direction Y; the third direction X is opposite to the fourth direction Y. In this embodiment, the third limiting member 16 is installed on the mounting bracket 11. When the first sliding shaft 12 is moved in the third direction X by the thrust of the seat 2, the third limiting member 16 and the first sliding shaft 12 Cooperate to restrict the rotation of the first sliding shaft 12 in the fourth direction Y to limit the movement of the seat 2 in the fourth direction Y due to inertia or shock, close to the collision side, thereby reducing the risk of secondary injury to the driver and passengers, and the third The three limiting members 16 do not restrict the first sliding shaft 12 from continuing to rotate in the third direction X, that is, the seat 2 and the driver can continue to rotate in a direction away from the collision side.

Specifically, as shown in FIG. 12 , the third limiting member 16 includes a pawl 161 , the first sliding shaft 12 is provided with a plurality of second grooves 122 , and the plurality of second grooves 122 are distributed along the circumferential direction of the first sliding shaft 12 . ; The pawl 161 can cooperate with one of the second grooves 122 to limit the rotation of the first sliding shaft 12 in the fourth direction Y. In this embodiment, the second groove 122 is provided with a vertical section and an inclined tapered surface. When the first sliding shaft 12 rotates toward the third direction X, the pawl 161 can slide through the inclined tapered surface of the second groove 122, so that the first The sliding shaft 12 can continue to rotate toward the third direction X. When the first sliding shaft 12 tends to move in the fourth direction Y, the pawl 161 contacts the vertical section of the second groove 122 , so that the pawl 161 is in an engaged state with one of the second grooves 122 to limit the first sliding shaft 12 . The sliding shaft 12 rotates in the fourth direction Y.

As shown in Figure 12, the third limiting member 16 also includes a third elastic member 162. One end of the third elastic member 162 is connected to the mounting bracket 11, and the other end of the third elastic member 162 is connected to the pawl 161; When the shaft 12 is pushed to rotate in the third direction Can cooperate with one of the second grooves 122 . The third elastic member 162 can be a torsion spring. When the first sliding shaft 12 rotates, the torsion spring uses its pretightening force to keep the pawl 161 and the first sliding shaft 12 in a fitting state. After the rotation of the first sliding shaft 12 is completed, the torsion spring The spring uses its pretightening force to engage the pawl 161 with one of the second grooves 122 to limit the rotation of the first sliding shaft 12 in the fourth direction Y.

The collision protection device 1 is installed on the moving pair of the vehicle seat 2 and is located below the seat 2 bracket. When a collision occurs, the user can replace the damaged collision protection device 1 at a vehicle repair shop. Moreover, the collision protection device 1 has a simple structure, does not require modification of the vehicle cockpit during installation, and is suitable for different vehicle models.

This embodiment also provides a seat 2. The seat 2 includes a seat body and a collision protection device 1. The collision protection device 1 is the collision protection device 1 described in the above embodiment and will not be described here. The base body is provided with an installation part, and the collision protection device 1 is provided with a matching part. The connection between the base body and the collision protection device 1 is realized through the cooperation between the installation part and the matching part. The mounting part and the matching part can be snap-fitted to facilitate assembly by the user.

This embodiment also provides a vehicle. The vehicle includes a body, a seat 2 and a collision protection device 1. The seat 2 is installed on the body;

The collision protection device 1 is the collision protection device 1 described in the above embodiment, and will not be described again here. The collision protection device 1 is installed between the vehicle body and the seat 2 and can drive the seat 2 to move relative to the vehicle body; when the vehicle is collided, the collision protection device can drive the seat 2 to move away from the collision side.

This embodiment also provides a storage medium that stores executable instructions of the collision protection device 1. When the executable instructions of the collision protection device 1 are loaded and executed by the processor, the above-mentioned collision protection method of the collision protection device 1 is implemented. The storage medium may include: U disk, mobile hard disk, memory, optical disk, magnetic disk and other media that can store programs.

This embodiment also provides a computer program product, which is a computer product containing a computer program. When the processor executes the computer program, the method in the above embodiment is implemented.

This embodiment also provides a collision protection method applied to the collision protection device 1. The method includes:

Obtain the first acceleration, which is the vehicle acceleration along the vehicle's traveling direction;

When the first acceleration is greater than the first threshold, the seat 2 is controlled to move in the first direction F.

In this embodiment, a first threshold is preset in the processor. After the vehicle is started, the processor can obtain the first acceleration of the vehicle in the driving direction in real time. If the first acceleration is greater than the prestored first threshold, the processor The collision protection device 1 can be activated to control the seat 2 to move in the first direction F to move the seat 2 away from the collision side.

Specifically, if the first sensor detects that the first acceleration is less than the first threshold, the processor does not activate the collision protection device 1;

If the first sensor detects that the first acceleration is greater than the first threshold, the limiting mechanism unlocks the first sliding shaft 12 and the mounting bracket 11, the processor activates the collision protection device 1, and the first actuator triggers the first sliding shaft 12 to drive the The seat 2 moves in the first direction F.

In this embodiment, in practical applications, when a vehicle collides along the driving direction, the first sensor detects the first acceleration of the vehicle and sends a first signal to the processor. The processor receives the first signal and determines whether the first signal reaches a predetermined level. set the first threshold. If the first signal does not reach the first threshold, the processor does not start the collision protection device 1 and the seat 2 is in a stable state. If the first signal reaches the first threshold, the processor starts the collision protection device 1 to work, that is, the processor starts the first actuator (gas generator) to ignite the explosive powder in the fuel chamber 112, so that the explosive powder rapidly ignites in the fuel chamber 112. The explosion generates air waves, which quickly impact the two rails 111. The impact force acts evenly on the first sliding shafts 12 on both sides. At the same time, the seat 2 exerts a thrust on the first sliding shaft 12 due to the inertia generated by the sudden deceleration of the vehicle. , the limiting mechanism can unlock the first sliding shaft 12 and the mounting bracket 11, and the air waves push the two first sliding shafts 12 to move in the first direction F synchronously, thereby driving the seat 2 to move in the first direction F away from the collision. side. In this embodiment, the time when the collision protection device 1 drives the seat 2 to move can be calibrated based on the first signal of the first sensor, so the time when the seat 2 moves can be slightly earlier than the time when the collision occurs.

Among them, the first threshold is -8m/s ² .

In one possible design, the approach also includes:

Obtain the second acceleration, which is the acceleration in the direction perpendicular to the driving direction of the vehicle;

When the second acceleration is greater than the second threshold, the seat is controlled to rotate toward the third direction X.

In this embodiment, a second threshold is preset in the processor. After the vehicle is started, the processor can obtain the second acceleration of the vehicle in real time perpendicular to the driving direction. If the second acceleration is greater than the prestored second threshold, The processor can activate the collision protection device 1 to control the seat 2 to rotate in the third direction X to move the seat 2 away from the collision side.

Specifically, if the second sensor detects that the second acceleration is less than the second threshold, the processor does not activate the collision protection device 1;

If the second sensor detects that the second acceleration is greater than the second threshold, the processor activates the collision protection device 2 and the second actuator expands to rotate the seat 2 around the first sliding axis 12 toward the third direction X.

In this embodiment, in practical applications, when a vehicle collides laterally, the second sensor detects the second acceleration of the vehicle and sends a second signal to the processor. The processor receives the second signal and determines whether the second signal reaches the preset value. the second threshold. If the second signal does not reach the second threshold, the processor does not start the collision protection device and the seat 2 is in a stable state. If the second signal reaches the second preset threshold, the processor starts the collision protection device 1 to work, that is, the processor starts to ignite the solid powder of the second actuator 15, and the solid powder explodes to generate gas, causing the second actuator 15 to rapidly expand. The seat 2 on the side where the second actuator 15 is located is raised, and the seat 2 rotates around the first sliding axis 12 toward the third direction X to keep the occupant away from the collision side. In this embodiment, the moment when the collision protection device 1 drives the seat 2 to move can be calibrated based on the second signal from the second sensor, so the moment when the seat 2 moves can be slightly earlier than the moment when the collision occurs.

Among them, the second preset threshold is -3m/s ² .

In some embodiments, the first sensor and the second sensor are acceleration sensors. Alternatively, one sensor may be used to detect the first acceleration and the second acceleration.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A collision protection device, characterized in that the collision protection device includes:

A mounting frame for connecting to the vehicle, the mounting frame is provided with a track;

A first sliding shaft for connecting with the seat, the first sliding shaft is installed on the track and can move relative to the mounting frame;

A limiting mechanism capable of locking or unlocking the first sliding shaft and the mounting bracket;

The first actuator is used to drive the seat movement;

Wherein, the first actuator is used to trigger the first sliding shaft to move in the first direction along the track.
A collision protection device according to claim 1, characterized in that when the first sliding shaft is pushed to move in the second direction along the track, the limiting mechanism can release the connection between the first sliding shaft and the second sliding shaft. Locking of the mounting bracket so that the first sliding shaft can move in the first direction;

The first direction is opposite to the second direction.
A collision protection device according to claim 2, characterized in that the limiting mechanism includes a first limiting member, and the first limiting member can limit the first sliding shaft to move in the second direction. sports.
A collision protection device according to claim 3, characterized in that the limiting mechanism includes a second limiting member;

When the first sliding shaft is locked with the mounting bracket, the second limiting member can limit the movement of the first sliding shaft in the first direction;

When the first sliding shaft is triggered to move in the first direction along the track, the second limiting member can limit the movement of the first sliding shaft in the second direction.
A collision protection device according to claim 4, characterized in that the second limiting member includes double anti-stop claws, and the double anti-directional claws are provided with a first claw;

When the first sliding shaft and the mounting bracket are in a locked state, the first claw abuts the end surface of the first sliding shaft to restrict the movement of the first sliding shaft in the first direction.
A collision protection device according to claim 5, characterized in that the double-stop claw is provided with a second claw;

When the first sliding shaft moves in the second direction along the track, the first claw and the second claw rotate relative to the first sliding shaft.
A collision protection device according to claim 6, characterized in that when the first sliding shaft is triggered to move in the first direction along the track, the second claw can limit the first sliding shaft. The shaft moves in said second direction.
A collision protection device according to claim 7, characterized in that the first sliding shaft is provided with a plurality of first grooves, and the plurality of first grooves are distributed along the axial direction of the first sliding shaft;

The second claw can cooperate with one of the first grooves to limit the movement of the first sliding shaft in the second direction.
A collision protection device according to claim 5, characterized in that the first limiting member includes a first elastic member, one end of the first elastic member is connected to the rail, and the first elastic member The other end is connected to the first sliding shaft;

The second limiting member also includes a second elastic member, one end of the second elastic member is connected to the mounting bracket, and the other end of the second elastic member is connected to the double-stop claw;

When the first sliding shaft is pushed to move in the second direction, the first sliding shaft can move in the second direction against the first elastic member, and the second elastic member can move in the second direction under the action of its elastic force. The double-stop claws are driven to rotate.
A collision protection device according to claim 1, characterized in that the collision protection device has a fuel chamber, and explosive powder is contained in the fuel chamber;

The first actuator is an ignition component. When the ignition component is triggered, the first sliding shaft is pushed to move in the first direction.
A collision protection device according to any one of claims 1 to 10, characterized in that the collision protection device further includes a second actuator for connecting with the seat;

When a collision occurs at the first position of the vehicle, the second actuator can drive the seat to rotate toward a side away from the first position.
A collision protection device according to claim 11, characterized in that the second actuator is an air bag, and the air bag is inflated when a collision occurs at the first position of the vehicle.
A collision protection device according to claim 11, characterized in that the seat rotates toward a third direction around the first sliding axis away from the first position.
A collision protection device according to claim 13, characterized in that the collision protection device is provided with a third limiting member, and the third limiting member cooperates with the first sliding shaft to limit the The first sliding shaft drives the seat to rotate in the fourth direction;

The third direction is opposite to the fourth direction.
A collision protection device according to claim 14, characterized in that the third limiting member includes a pawl, the first sliding shaft is provided with a plurality of second grooves, and the plurality of second grooves are along the The circumferential distribution of the first sliding shaft;

The pawl can cooperate with one of the second grooves to limit the rotation of the first sliding shaft in the fourth direction.
A collision protection device according to claim 15, characterized in that the third limiting member further includes a third elastic member, one end of the third elastic member is connected to the mounting frame, and the third elastic member is connected to the mounting bracket. The other end of the elastic member is connected to the pawl;

When the first sliding shaft is pushed to rotate in the third direction, the third elastic member drives the pawl to fit with the first sliding shaft under its elastic force, so that the first sliding shaft When the shaft is not rotating, the pawl can cooperate with one of the second grooves.
A collision protection method, characterized in that the method includes:

Obtain a first acceleration, where the first acceleration is the vehicle acceleration along the vehicle's traveling direction;

When the first acceleration is greater than the first threshold, the seat is controlled to move in the first direction.
The method according to claim 17, characterized in that when detecting that the first acceleration is greater than the first threshold, the method further includes:

Unlock the first slide.
The method according to claim 18, characterized in that the method further includes: activating the collision protection device, the limiting mechanism unlocking the first sliding shaft and the mounting bracket, and the first actuator triggering the first sliding shaft driving seat. The chair moves in the first direction.
The method of claim 18, further comprising: not activating the collision protection device when detecting that the first acceleration is less than the first threshold.
The method according to claim 17, characterized in that the method includes:

Obtaining a second acceleration, the second acceleration being an acceleration along a direction perpendicular to the traveling direction of the vehicle;

When the second acceleration is greater than the second threshold, the seat is controlled to rotate in a third direction.
The method according to claim 21, characterized in that the method includes: when detecting that the second acceleration is greater than the second threshold, activating the collision protection device, and expanding the second actuator to move the seat around the first sliding axis towards the third direction of rotation.
The method according to claim 21, characterized in that, the method further includes:

When the second acceleration is detected to be less than the second threshold, the collision protection device is not activated.
A seat, characterized by comprising the collision protection device according to any one of claims 1 to 16.
A vehicle, characterized in that the vehicle includes:

Body:

A seat is installed on the vehicle body, and the seat is the seat according to claim 24.
A storage medium, characterized in that the storage medium stores executable instructions. When the executable instructions are executed by a processor, the method according to any one of claims 16 to 23 is implemented.