A rotating shaft device, a vehicle door escape system and a method of using the same

Abstract

The present application relates to the field of automobile control technology, and specifically to a pivot device, a car door escape system, and a method of using the same. A pivot device is installed on a vehicle door, comprising a first pivot portion and a second pivot portion, wherein the first pivot portion is installed at the end of the door in a vertical direction, and the second pivot portion is installed in the middle of the door, and the axis of the first pivot portion and the axis of the second pivot portion are parallel to each other. At any time, only one of the first pivot portion and the second pivot portion is in a first state, and the first state is connected to the vehicle body for rotation. In the present application, by providing the first pivot portion and the second pivot portion, when the vehicle falls into water, the water pressure and torque on both sides of the second pivot portion are the same, which can alleviate the door's rotational inertia and moment of inertia to a certain extent, and the door can be opened by providing a thrust by a person inside the vehicle.

Description

Technical Field

[0001] The present application relates to the field of automobile control technology, and in particular to a rotating shaft device, a vehicle door escape system, and a method for using the same. Background Art

[0002] As we all know, the domestic car ownership rate is constantly increasing. People's demands for cars go beyond convenience and comfort, and they also place higher demands on safety and intelligence. At the same time, as traditional mechanical devices and technologies have matured in the automotive field, the application of automotive electronics and digital technologies in vehicles and parts has become increasingly widespread. When a vehicle crashes into water in an accident, due to its heavy weight, it will sink very quickly. Coupled with the water pressure, pain, or panic of passengers, the doors and windows cannot be opened for a while, and passengers are unable to escape in time, resulting in drowning and other personal injury accidents.

[0003] At present, most car doors are set as outward-pushing doors. The vehicle can be unlocked after people inside or outside the car pull the handle. However, due to the large difference in water pressure between the cab and outside the car of a car that fell into the water, the water pressure will produce a large pressure on the door, hindering the opening of the door, resulting in the occupants in the cab being unable to open the door and escape safely. Even if the car glass is shattered, the strong water pressure may carry glass fragments and cause secondary injuries to the people in the cab. At the same time, there are some vehicles equipped with electric suction doors, and a door opening motor is installed at the door rotating hinge, but because it is close to the door rotation axis, the door opening force is small. After the door is deformed, it is also difficult to help push the door open. Summary of the Invention

[0004] The purpose of this application is to provide a rotating shaft device, a vehicle door escape system and a method of using the same.

[0005] The embodiments of the present application can be implemented through the following technical solutions:

[0006] A pivot device is installed on a vehicle door, including a first pivot portion and a second pivot portion. The first pivot portion is installed at the end of the vehicle door in a vertical direction, and the second pivot portion is installed in the middle of the vehicle door. The axis of the first pivot portion and the axis of the second pivot portion are parallel to each other. At any time, one and only one of the first pivot portion and the second pivot portion is in a first state, and the first state is a rotational connection with the vehicle body.

[0007] Furthermore, the first rotating shaft portion and the second rotating shaft portion can also be in a second state connected to the vehicle body.

[0008] Further, when the first rotating shaft portion is in the first state, the second rotating shaft portion is in the second state; when the second rotating shaft portion is in the first state, the first rotating shaft portion is in the second state.

[0009] Furthermore, a horizontal distance between the second rotating shaft portion and the first rotating shaft portion is 0.45 to 0.55 times the length of the vehicle door, where the length of the vehicle door is a horizontal distance between two ends of the vehicle door.

[0010] Furthermore, a control unit is included, and the control unit is used to realize the conversion of the first rotating shaft unit and the second rotating shaft unit between the first state and the second state respectively.

[0011] Furthermore, the first rotating shaft portion includes two symmetrically arranged first rotating shaft structures that can move toward or away from each other, the first rotating shaft structure includes a first driving portion, a first driven portion, a first guide portion and a first groove, the first driven portion is fixedly connected to the first guide portion, and the first driving portion can drive the first driven portion to reciprocate in the vertical direction inside the first groove.

[0012] Furthermore, the first rotating shaft portion cooperates with a second groove provided on the vehicle body, and the second groove is coaxially arranged with the first groove. When the first rotating shaft portion is in the first state, the first guide portion is inserted into the interior of the second groove and realizes the rotatable connection between the vehicle door and the vehicle body.

[0013] Furthermore, the second rotating shaft portion includes two symmetrically arranged second rotating shaft structures that can move toward or away from each other, the second rotating shaft structure includes a second driving portion, a second driven portion, a second guide portion and a third groove, the second driven portion is fixedly connected to the second guide portion, and the second driving portion can drive the second driven portion to reciprocate in the vertical direction inside the third groove.

[0014] Furthermore, the second rotating shaft portion cooperates with a fourth groove provided on the vehicle body, and the fourth groove is coaxially arranged with the third groove. When the second rotating shaft portion is in the first state, the second guide portion is inserted into the interior of the fourth groove and realizes the rotatable connection between the vehicle door and the vehicle body.

[0015] A vehicle door escape system comprises a water fall detection unit, a vehicle body domain controller, a vehicle door sensor and the rotating shaft device;

[0016] Furthermore, the water-fall detection unit is used to detect a vehicle-fall-into-water signal;

[0017] Furthermore, the shaft device is used to realize the conversion of the shaft connecting the door and the vehicle;

[0018] Furthermore, the door sensor is used to determine the open or closed state of the vehicle door and transmit the signal to the body domain controller;

[0019] Furthermore, the body domain controller is respectively connected to the water fall detection unit, the rotating shaft device, and the door sensor, and the body domain controller is also used to control the power output of the door escape system.

[0020] Furthermore, it also includes a boosting device, which is used to receive the signal of the vehicle body domain controller and provide a boosting force to open the vehicle door.

[0021] Furthermore, the boosting force provided by the boosting device includes a first thrust and a second thrust, the second thrust is greater than the first thrust, and the body domain controller controls the conversion between the first thrust and the second thrust.

[0022] Furthermore, it also includes an escape alarm unit, which is used to receive instructions sent by the body domain controller and send alarm information. The escape alarm unit is electrically connected to the body domain controller.

[0023] A method for using a vehicle door escape system, the method being applied to the vehicle door escape system, comprising the following steps:

[0024] Step S1: The water-fall detection unit works to determine whether the vehicle has fallen into water. If it is determined that the vehicle has fallen into water, the next step is performed;

[0025] Step S2: activating the rotating shaft device to control the second rotating shaft portion to switch to the first state and causing the vehicle door to rotate relative to the vehicle body.

[0026] Furthermore, the vehicle door escape system further comprises a boosting device, which is used to receive a signal from the vehicle body domain controller and provide a boosting force to open the vehicle door;

[0027] The method for using the vehicle door escape system further includes:

[0028] Step S3: After a preset time, the door sensor detects the door opening and closing state. If the door is closed, the next step is performed;

[0029] Step S4: the vehicle body domain controller controls the boosting device to start, and the boosting device provides a boosting force to open the door;

[0030] Furthermore, the boosting force provided by the boosting device of the vehicle door escape system includes a first thrust and a second thrust, the second thrust is greater than the first thrust, and the vehicle body domain controller controls the conversion between the first thrust and the second thrust.

[0031] The boosting force provided by the boosting device in step S4 is the first boosting force;

[0032] Furthermore, the method for using the vehicle door escape system further includes the following steps:

[0033] Step S5: After a preset time, the door sensor detects the open or closed state of the door. If the door is closed, the next step is performed.

[0034] Step S6: The vehicle body domain controller controls the boosting device to provide a second boosting force to open the door;

[0035] Step S7: After a preset time, the door sensor detects the open or closed state of the door. If the door is closed, the next step is performed.

[0036] Step S8: The vehicle body domain controller controls the escape alarm unit to start and send out a distress signal.

[0037] The rotating shaft device, vehicle door escape system, and method of using the same provided by the embodiments of the present application have at least the following beneficial effects:

[0038] 1. In the present application, the rotational inertia and moment of inertia of the vehicle door are changed by arranging the first rotation axis portion and the second rotation axis portion. When the depth of accumulated water around the vehicle reaches a dangerous level, the second rotation axis portion is placed in the first state through the control portion, and the first rotation axis portion is placed in a disengaged state. The vehicle door is rotatably connected to the vehicle body through the second rotation axis portion. At the same time, the second rotation axis portion is arranged in the middle of the vehicle door. When the vehicle falls into water, the water pressure and torque on both sides of the second rotation axis portion are the same, which can alleviate the rotational inertia and moment of inertia of the vehicle door to a certain extent. The vehicle door can be opened by providing thrust by people inside the vehicle.

[0039] 2. The door escape system in this application is provided with a booster device. When the door cannot be opened normally due to special circumstances such as the vehicle falling into water, it can provide a boosting force to open the door and help passengers escape. At the same time, the booster device and the rotating shaft device cooperate with each other. When the second rotating shaft part is in the first state, the booster device provides a boosting force to open the door, so that the passengers can be rescued. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the first rotating shaft portion in the present application in a first state;

[0041] Figure 2 This is a schematic diagram of the second rotating shaft portion in the present application being in a first state;

[0042] Figure 3 This is a schematic diagram of the force acting on the vehicle door when the first rotating shaft portion is in the first state in the present application;

[0043] Figure 4 This is a schematic diagram of the force acting on the vehicle door when the second rotating shaft portion is in the first state in this application;

[0044] Figure 5 The frame of the car door escape system in this application Figure 1 ;

[0045] Figure 6 The frame of the car door escape system in this application Figure 2 ;

[0046] Figure 7 This is a block diagram of the water fall detection unit in this application;

[0047] Figure 8 The process of using the car door escape system in this application Figure 1 ;

[0048] Figure 9 The process of using the car door escape system in this application Figure 2 ;

[0049] Figure 10 The process of using the car door escape system in this application Figure 3 .

[0050] The numbers in the figure are: 1-car door, 2-control part, 3-positioning sleeve, 4-first rotating shaft part, 41-first driving part, 42-first driven part, 43-first guide part, 44-first groove, 5-second rotating shaft part, 51-second driving part, 52-second driven part, 53-second guide part, 54-third groove, 6-second groove, 7-fourth groove, 100-water fall detection unit, 101-conductive water level gauge, 102-pressure water level gauge, 200-rotating shaft device, 300-boosting device, 400-escape alarm unit, 500-body domain controller, 600-car door sensor. DETAILED DESCRIPTION

[0051] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0052] In addition, for ease of understanding, various components in the drawings are enlarged (thickened) or reduced (thinned), but this practice is not intended to limit the scope of protection of this application.

[0053] Words importing the singular include the plural and vice versa.

[0054] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of the present application.

[0055] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0056] Example 1

[0057] The present application provides a rotating shaft device, Figure 1 and Figure 2 Schematic diagrams showing the first rotating shaft portion and the second rotating shaft portion in the present application when they are in the first state, as shown in FIG. Figure 1 and Figure 2 As shown, a rotating shaft device includes a first rotating shaft portion 4 and a second rotating shaft portion 5, wherein the first rotating shaft portion 4 is installed at the end of the vehicle door 1 in the vertical direction, and the second rotating shaft portion 5 is installed in the middle of the vehicle door 1 and the axis of the first rotating shaft portion 4 and the axis of the second rotating shaft portion 5 are parallel to each other. At any time, one and only one of the first rotating shaft portion 4 and the second rotating shaft portion 5 is in a first state, and the first state is connected to the vehicle body for rotation, that is, the vehicle door 1 rotates relative to the vehicle body.

[0058] Furthermore, the first rotating shaft portion 4 and the second rotating shaft portion 5 can also be in a second state, the second state being a disengaged state, that is, not connected to the vehicle body for rotation; when the first rotating shaft portion 4 is in the first state, the second rotating shaft portion 5 is in the second state; when the second rotating shaft portion 5 is in the first state, the first rotating shaft portion 4 is in the second state.

[0059] Furthermore, the distance between the second rotating shaft portion 5 and the first rotating shaft portion 4 is 0.45 to 0.55 times the length of the vehicle door 1. The length of the vehicle door 1 is the horizontal distance from the two ends of the vehicle door 1. The ends are the parts where the vehicle door 1 intersects with the vehicle body. At the same time, the vehicle door 1 also includes a top end and a bottom end.

[0060] Furthermore, during daily driving, the driver can manually control the first rotating shaft part 4 or the second rotating shaft part 5 to be in the first state. Through physical calculation, it can be obtained that when the second rotating shaft part 5 is in the first state, the moment of inertia of opening the door is 1 / 4 times that of the first rotating shaft part 4 in the first state, and the rotational inertia and moment of inertia of the door 1 are reduced.

[0061] When a vehicle falls into water, water cannot flow into the interior of the vehicle quickly due to the good sealing performance of the vehicle. Under the action of water, a pressure difference is generated between the air pressure inside the vehicle and the water pressure outside the vehicle. At the same time, the weight of the water increases the rotational inertia and moment of inertia of the door 1, making it difficult for people inside the vehicle to open the door easily. Figure 3 and Figure 4 Schematic diagrams of the forces acting on the vehicle door 1 when the first rotating shaft portion 4 is in the first state and schematic diagrams of the forces acting on the vehicle door 1 when the second rotating shaft portion 5 is in the first state are shown respectively. Figure 3 and Figure 4 As shown, F1 is the external water pressure applied to the door 1 when the vehicle falls into the water. F2 and F3 are the forces required by a passenger to open the door when the first hinge portion 4 and the second hinge portion 5 are respectively in the first state. When the second hinge portion 5 is in the first state and the first hinge portion 4 is in the second state, the door 1 is rotatably connected to the vehicle body via the second hinge portion 5 and can rotate relative to the vehicle body. At this point, the water pressure on both sides of the second hinge portion 5 is the same, and the torque is the same but in opposite directions. Therefore, F3 is much smaller than F2, and the moment of inertia of the door 1 at this point is much smaller than the moment of inertia when the first hinge portion 4 is in the first state. The door can be opened by a passenger providing a thrust from inside the vehicle.

[0062] In some preferred embodiments of the present application, the rotating shaft device further includes a control unit 2, and the control unit 2 is used to realize the conversion of the first rotating shaft unit 4 and the second rotating shaft unit 5 between the first state and the second state respectively.

[0063] Specifically, the first rotating shaft portion 4 includes two symmetrically arranged first rotating shaft structures, which can move toward each other or move away from each other. The first rotating shaft structure includes a first driving portion 41, a first driven portion 42, a first guide portion 43 and a first groove 44. The first driven portion 42 is fixedly connected to the first guide portion 43. The first driving portion 41 can drive the first driven portion 42 to reciprocate in the vertical direction inside the first groove 44.

[0064] In some preferred embodiments of the present application, the first driving part 41 is a gear, the first driven part 42 is a rack, the first driving part 41 is meshed with the first driven part 42, and the first driving part 41 is controlled to rotate forward or reverse by electronic control. The motor drives the first driving part 41 to rotate through the shaft, and the rotational force is continuously transmitted to the first driven part 42 through the meshing surface of the first driving part 41, and finally drives the first guide part 43 to perform reciprocating motion.

[0065] In some preferred embodiments of the present application, the gear and rack are respectively a worm gear and a worm structure. Compared to helical gears that produce point-like tooth surface contact, a worm gear has linear tooth surface contact, which gives it the advantages of a higher transmission ratio and higher power transmission, and can transmit very high power. At the same time, multiple parts of the worm gear can engage with the worm gear simultaneously. Compared with traditional helical gears, the transmission between the worm gear and the worm gear is smoother and produces less noise.

[0066] Furthermore, the rotating shaft device further includes a positioning sleeve 3 , which is fixedly connected to the vehicle door 1 . The first groove 44 is located inside the positioning sleeve 3 , and the first rotating shaft portion 4 reciprocates inside the positioning sleeve 3 .

[0067] In some preferred embodiments of the present application, the end of the first guide portion 43 close to the second groove 6 is chamfered, so that the first guide portion 43 can be smoothly inserted into the second groove 6 and can switch smoothly when switching between the first state and the second state, while further reducing the degree of wear.

[0068] Specifically, the second rotating shaft portion 5 includes two symmetrically arranged second rotating shaft structures, which can move toward each other or away from each other. The second rotating shaft structure includes a second driving portion 51, a second driven portion 52, a second guide portion 53 and a third groove 54. The second driven portion 52 is fixedly connected to the second guide portion 53. The second driving portion 51 can drive the second driven portion 52 to reciprocate in the vertical direction inside the third groove 54.

[0069] In some preferred embodiments of the present application, the second driving part 51 is a gear, the second driven part 52 is a rack, the second driving part 51 is meshed with the second driven part 52, and the second driving part 51 is controlled to rotate forward or reverse by electronic control. The motor drives the second driving part 51 to rotate through the shaft, and the rotational force is continuously transmitted to the second driven part 52 through the meshing surface of the second driving part 51, and finally drives the second guide part 53 to reciprocate.

[0070] In some preferred embodiments of the present application, the gear and rack are respectively a worm gear and a worm structure. Compared to helical gears that produce point-like tooth surface contact, a worm gear has linear tooth surface contact, which gives it the advantages of a higher transmission ratio and higher power transmission, and can transmit very high power. At the same time, multiple parts of the worm gear can engage with the worm gear simultaneously. Compared with traditional helical gears, the transmission between the worm gear and the worm gear is smoother and produces less noise.

[0071] In some preferred embodiments of the present application, the end of the second guide portion 53 close to the fourth groove 7 is chamfered, so that the second guide portion 53 can be smoothly inserted into the fourth groove 7 and can be smoothly switched when switching between the first state and the second state, while further reducing the degree of wear.

[0072] like Figure 1 and Figure 2 As shown in the figure, the shaded part is the second groove 6 and the fourth groove 7 on the vehicle body, which are coaxially arranged with the first rotating shaft part 4 and the second rotating shaft part 5 and correspond one to one. When the first rotating shaft part 4 is in the first state, the second rotating shaft part 5 is in the second state. The control part 2 controls the first driving part 41 to drive the first guide part 43 to move backward until the first guide part 43 is inserted into the second groove 6, thereby realizing the rotational connection between the vehicle door 1 and the vehicle body. At the same time, the control part 2 controls the second driving part 51 to drive the two guide parts 53 to move toward each other so that the second rotating shaft part 5 is completely located in the third groove 54.

[0073] When the first rotating shaft portion 4 is in the second state, the second rotating shaft portion 5 is in the first state, and the control portion 2 controls the second driving portion 51 to drive the second guide portion 53 to move backward until the second guide portion 53 is inserted into the fourth groove 7, thereby realizing the rotational connection between the vehicle door 1 and the vehicle body. At the same time, the control portion 2 controls the first driving portion 41 to drive the first guide portion 43 to move toward each other so that the first rotating shaft portion 4 is completely located in the first groove 44.

[0074] Example 2

[0075] like Figure 5 As shown, Figure 5 The frame of the car door escape system in this application Figure 1 , including a water fall detection unit 100, a body domain controller 500, a door sensor 600 and the rotating shaft device 200 in this application, the water fall detection unit 100 is used to detect the vehicle water fall signal, the rotating shaft device 200 is used to realize the conversion of the door 1 and the vehicle connection shaft, the door sensor 600 is used to judge the opening and closing status of the door 1 and transmit the signal to the body domain controller 500, the body domain controller 500 is respectively connected to the water fall detection unit 100, the rotating shaft device 200, and the door sensor 600, and the body domain controller 500 is also used to control the power output of the door escape system.

[0076] Specifically, if Figure 7 As shown, the water-fall detection unit 100 includes a conductive water level gauge 101 and a pressure water level gauge 102. The conductive water level gauge 101 is used to detect the vehicle's water immersion signal and the installation height of the conductive water level gauge 101 is higher than the vehicle's maximum wading depth. The conductive water level gauge 101 determines the water level by measuring the conduction of the current. Based on the conductive properties of water, when the water level reaches a certain height, the conductive water level gauge 101 will conduct current.

[0077] The pressure water level gauge 102 is used to detect the vehicle's water pressure signal and the installation height of the pressure water level gauge 102 is lower than the lowest point of the engine or electric drive. The pressure water level gauge 102 uses the principle of hydrostatic pressure to measure the water level. When the vehicle falls into the water, the water pressure will change. When the water level rises to a certain pressure, the pressure water level gauge will generate a corresponding signal. Therefore, within the preset time period, when the water pressure signal is greater than the preset water pressure value, it is determined that the vehicle has fallen into the water.

[0078] Furthermore, it also includes an escape alarm unit 400, which is electrically connected to the vehicle body domain controller 500. At the same time, the escape alarm unit 400 is also electrically connected to the communication domain controller. After a preset time, the door sensor 600 detects the open and closed status of the door. If the door is in a closed state, the escape alarm unit 400 is activated, and the escape alarm unit 400 outputs an emergency call request. The emergency call request includes uploading the vehicle position information and posture information to the accident emergency center or relevant rescue agency through the communication domain controller. In this way, emergency rescue personnel can quickly obtain the current position and posture information of the vehicle and take immediate action.

[0079] In some preferred embodiments of the present application, Figure 6 As shown, the vehicle door escape system further includes a boosting device 300 , which receives a signal from the vehicle body domain controller 500 and provides a boosting force to assist passengers in opening the vehicle door.

[0080] Furthermore, the booster device 300 can be a propeller structure driven by electric power, an airbag can be set at the door, or a lock, a lock body and a door opening booster can cooperate to provide a boost force to open the door and help passengers escape.

[0081] In some preferred embodiments of the present application, the boosting force provided by the boosting device 300 includes a first thrust and a second thrust. After the second thrust is greater than the first thrust for a preset period of time, the body domain controller 500 controls the boosting device 300 to convert the first thrust into the second thrust.

[0082] Example 3

[0083] Figure 8 This is a flowchart of the method for using the car door escape system in this application. Figure 1 ,like Figure 8 As shown, the method for using the vehicle door escape system includes the following steps:

[0084] Step S1: The water-fall detection unit 100 operates to determine whether the vehicle has fallen into water: first, the water immersion signal of the conductive water level gauge 101 is detected. When the vehicle falls into water, the circuit of the conductive water level gauge 101 is in a conductive state. Then, the water pressure signal of the pressure water level gauge 102 is detected. If the water pressure signal is greater than a preset water pressure value within a preset time period, it is determined that the vehicle has fallen into water;

[0085] Step S2: activating the rotating shaft device 200 to control the second rotating shaft portion 5 to switch to the first state and causing the vehicle door 1 to rotate relative to the vehicle body.

[0086] It should be noted that the preset duration refers to a time period set when the vehicle enters the water, which is used to detect the water pressure value to determine whether the vehicle falls into the water or detect the opening and closing status of the door 1. This time period can be a fixed duration set in advance, or it can be dynamically adjusted according to specific circumstances and needs.

[0087] It should be noted that the preset water pressure value can be a reference water pressure threshold set when the vehicle enters the water. When the vehicle enters the water, the surrounding water pressure will increase significantly, exceeding the preset water pressure value, thereby triggering the judgment of the vehicle falling into the water.

[0088] In some preferred embodiments of the present application, Figure 9 As shown, the method for using the vehicle door escape system further includes:

[0089] Step S3: After a preset time, the door sensor 600 detects the door opening and closing state. If the door 1 is closed, the next step is performed.

[0090] Step S4: the vehicle body domain controller 500 controls the boosting device 300 to start, and the boosting device 300 provides a boosting force to open the door;

[0091] In some preferred embodiments of the present application, Figure 10 As shown, the boosting force provided by the boosting device 300 of the vehicle door escape system includes a first thrust and a second thrust, the second thrust is greater than the first thrust, and the vehicle body domain controller 500 controls the conversion between the first thrust and the second thrust.

[0092] Furthermore, the boosting force provided by the boosting device 300 in step S4 is the first boosting force;

[0093] Furthermore, the method for using the vehicle door escape system further includes the following steps:

[0094] Step S5: After a preset time, the door sensor 600 detects the open or closed state of the door 1. If the door is closed, the next step is performed.

[0095] Step S6: the vehicle body domain controller 500 controls the boosting device 300 to provide a second boosting force to open the door;

[0096] Step S7: After a preset time, the door sensor 600 detects the open or closed state of the door 1. If the door 1 is closed, the next step is performed.

[0097] Step S8: The vehicle body domain controller 500 controls the escape alarm unit 400 to start and send out a distress signal.

[0098] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A rotating shaft device, mounted on a vehicle door (1), characterized in that: The invention comprises a first rotating shaft portion (4) and a second rotating shaft portion (5), wherein the first rotating shaft portion (4) is mounted at the end of the vehicle door (1) in a vertical direction, and the second rotating shaft portion (5) is mounted at the middle of the vehicle door (1), and the axis of the first rotating shaft portion (4) and the axis of the second rotating shaft portion (5) are parallel to each other. At any time, only one of the first rotating shaft portion (4) and the second rotating shaft portion (5) is in a first state, and the first state is connected to the vehicle body in rotation. The first rotating shaft portion (4) includes two first rotating shaft structures that are symmetrically arranged and can move toward each other or move in opposite directions. The first rotating shaft structure includes a first driving portion (41), a first driven portion (42), a first guide portion (43) and a first groove (44). The first driven portion (42) is fixedly connected to the first guide portion (43). The first driving portion (41) can drive the first driven portion (42) to reciprocate in the first groove (44) along the vertical direction. The first rotating shaft portion (4) cooperates with a second groove (6) provided on the vehicle body, the second groove (6) and the first groove (44) are coaxially arranged, and when the first rotating shaft portion (4) is in a first state, the first guide portion (43) is inserted into the interior of the second groove (6) and realizes the rotatable connection between the vehicle door (1) and the vehicle body; The second rotating shaft portion (5) comprises two second rotating shaft structures which are symmetrically arranged and can move toward each other or move in opposite directions. The second rotating shaft structure comprises a second driving portion (51), a second driven portion (52), a second guide portion (53) and a third groove (54). The second driven portion (52) is fixedly connected to the second guide portion (53). The second driving portion (51) can drive the second driven portion (52) to reciprocate in the vertical direction inside the third groove (54). The second rotating shaft portion (5) cooperates with a fourth groove (7) provided on the vehicle body, and the fourth groove (7) is coaxially arranged with the third groove (54). When the second rotating shaft portion (5) is in the first state, the second guide portion (53) is inserted into the interior of the fourth groove (7) and realizes the rotatable connection between the vehicle door (1) and the vehicle body.

2. The rotating shaft device according to claim 1, characterized in that: The first rotating shaft portion (4) and the second rotating shaft portion (5) can also be in a second state connected to the vehicle body; When the first rotating shaft portion (4) is in the first state, the second rotating shaft portion (5) is in the second state; when the second rotating shaft portion (5) is in the first state, the first rotating shaft portion (4) is in the second state.

3. The rotating shaft device according to claim 2, characterized in that: The horizontal distance between the second rotating shaft portion (5) and the first rotating shaft portion (4) is 0.45 to 0.55 times the length of the vehicle door (1), and the length of the vehicle door (1) is the horizontal distance between the two ends of the vehicle door (1).

4. The rotating shaft device according to claim 3, characterized in that: It also includes a control unit (2), which is used to realize the conversion of the first rotating shaft unit (4) and the second rotating shaft unit (5) between the first state and the second state respectively.

5. A vehicle door escape system, characterized by: It comprises a water fall detection unit (100), a vehicle body domain controller (500), a door sensor (600), and a rotating shaft device (200) according to any one of claims 1 to 4, The water-fall detection unit (100) is used to detect a vehicle-fall-into-water signal; The rotating shaft device (200) is used to realize the conversion of the rotating shaft connecting the vehicle door and the vehicle; The door sensor (600) is used to determine the open or closed state of the vehicle door and transmit the signal to the vehicle body domain controller (500); The vehicle body domain controller (500) is respectively connected to the water fall detection unit (100), the rotating shaft device (200), and the vehicle door sensor (600), and the vehicle body domain controller (500) is also used to control the power output of the vehicle door escape system.

6. The vehicle door escape system according to claim 5, characterized in that: It also includes a boosting device (300), which is used to receive a signal from the vehicle body domain controller (500) and provide a boosting force to open the vehicle door.

7. The vehicle door escape system according to claim 6, characterized in that: The boosting force provided by the boosting device (300) includes a first thrust and a second thrust, the second thrust being greater than the first thrust, and the vehicle body domain controller (500) controls the conversion between the first thrust and the second thrust.

8. The vehicle door escape system according to claim 5, characterized in that: It also includes an escape alarm unit (400), which is used to receive instructions sent by the vehicle body domain controller (500) and send alarm information. The escape alarm unit (400) is electrically connected to the vehicle body domain controller (500).

9. A method for using a vehicle door escape system, characterized in that: The method is applied to the vehicle door escape system according to claim 5, and comprises the following steps: Step S1: The water-fall detection unit (100) operates to determine whether the vehicle has fallen into water. If it is determined that the vehicle has fallen into water, the next step is performed; Step S2: Start the rotating shaft device (200), control the second rotating shaft portion (5) to switch to the first state and make the vehicle door (1) rotate relative to the vehicle body.

10. The method for using the vehicle door escape system according to claim 9, characterized in that: The vehicle door escape system further comprises a boosting device (300), the boosting device (300) being used to receive a signal from the vehicle body domain controller (500) and provide a boosting force to open the vehicle door; The method for using the vehicle door escape system further comprises the following steps: Step S3: After a preset time, the door sensor (600) detects the door opening and closing state. If the door (1) is in the closed state, the next step is performed; Step S4: the vehicle body domain controller (500) controls the boosting device (300) to start, and the boosting device (300) provides a boosting force to open the vehicle door.

11. The method for using the vehicle door escape system according to claim 10, characterized in that: The boosting force provided by the boosting device (300) of the vehicle door escape system includes a first thrust and a second thrust, the second thrust being greater than the first thrust, and the vehicle body domain controller (500) controls the conversion between the first thrust and the second thrust; The boosting force provided by the boosting device (300) in step S4 is a first boosting force; The method for using the vehicle door escape system further includes: Step S5: After a preset time, the door sensor (600) detects the open or closed state of the door (1). If the door is closed, the next step is performed; Step S6: the vehicle body domain controller (500) controls the boosting device (300) to provide a second boosting force to open the vehicle door; Step S7: After a preset time, the door sensor (600) detects the open or closed state of the door (1). If the door (1) is in the closed state, the next step is performed; Step S8: The vehicle body domain controller (500) controls the escape alarm unit (400) to start and send out a distress signal.

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