KR20220125494A - Its control method and door system for vehicles - Google Patents

Abstract

Disclosed are a vehicle door system and a control method thereof, wherein the vehicle door system protects passengers from side collisions and allows the passengers to be evacuated quickly from an accident vehicle. The vehicle door system comprises: a buffer element which buffers an impact force applied to an outer panel of a door as a buffer pad is moved toward the outer panel between an inner panel and the outer panel of the door; an air pocket which expands and develops between a rim part of the door and an opening part of the door closed by the door to open the door closed in the opening part of the door; and a controller which controls the buffer pad to move toward the outer panel when a vehicle collision prediction condition is satisfied, and controls the air pocket to expand when a vehicle collision condition is satisfied.

Description

Vehicle door system and its control method {Its control method and door system for vehicles}

The present invention relates to a door system for a vehicle that protects passengers from a side collision while enabling rapid evacuation of passengers in an accident vehicle and a method for controlling the same.

When a side collision occurs in the vehicle, side airbags and curtain airbags inside the vehicle are deployed to minimize injuries to passengers.

However, when the vehicle body is severely deformed due to the collision of the vehicle, the vehicle door is not easily opened.

Therefore, even if the airbag is normally deployed, the rescue time of passengers in the vehicle is delayed, which may lead to a fatal accident.

The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

US 10-2019-0048987 A JP 2017-165391 A JP 2020-131355 A

The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a door system for a vehicle and a control method thereof that protect passengers from side collisions and enable rapid evacuation of passengers in an accident vehicle.

The configuration of the present invention for achieving the above object is a buffer means for buffering the impact force applied to the outer panel by moving the buffer pad toward the outer panel between the inner panel and the outer panel of the door; an air pocket which expands and deploys between the edge of the door and the door opening closed by the door to open the door closed by the door opening; and a controller that controls the buffer pad to move toward the outer panel when the vehicle's collision condition is satisfied, and controls the air pocket to expand when the vehicle's collision condition is satisfied.

The buffer means, one end of the shock absorber actuator is fixed to the inner panel; The other end of the shock absorber actuator is fixed to the buffer pad; The shock absorber actuator is operated by the operation signal of the controller so that the buffer pad can be moved toward the outer panel.

According to the operation of the shock absorber actuator, the buffer pad may be in contact with the outer panel.

The outer panel may be moved outwardly by the pressure of the buffer pad in contact with the outer panel.

the inner panel and the outer panel are connected by a rigid weak part; As the rigid weak part is deformed, the position of the outer panel may be moved.

If the risk of side collision of the vehicle exceeds the set value, the collision prediction condition is satisfied; When the vehicle comes to a complete stop after detecting a side collision signal in a state in which the buffer pad is moved toward the outer panel, the collision condition may be satisfied.

a structure dedicated tag is connected to the controller; When the air pocket is not deployed, the controller may control the air pocket to inflate when the rescue tag key is connected to the rescue tag.

As a method of controlling a door system for a vehicle according to the present invention, a controller controls the buffer pad to move toward the outer panel between the inner panel and the outer panel of the door when a collision expected condition of the vehicle is satisfied, thereby buffering the impact force applied to the outer panel a buffering step; and a door opening step in which the controller expands and deploys an air pocket between the edge of the door and the door opening closed by the door when the vehicle crash condition is satisfied to open the closed door in the door opening. have.

Through the above-described problem solving means, the present invention absorbs and mitigates the side impact applied to the door by operating the buffer pad and the shock absorber actuator when a side collision of the vehicle is expected, thereby safely protecting passengers. .

In addition, when a side collision occurs, the air pocket is expanded and deployed to forcibly open the door, so that evacuation of passengers in the accident vehicle is performed quickly and safely.

1 is a block diagram of a door system for a vehicle according to the present invention;
Figure 2 is a view conceptually showing the installation position of the buffer pad and the air pocket installed on the vehicle door according to the present invention.
Figures 3a, 3b is a view for explaining the operating state of the buffer means according to the present invention.
Figure 4 is a view for explaining the operating state of the air pocket according to the present invention.
5 is a circuit diagram for explaining a control process of the vehicle door system according to the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention are implemented in various forms. and should not be construed as being limited to the embodiments described in the present specification or application.

Since the embodiment according to the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosed form, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another element, for example, without departing from the scope of the present invention, a first element may be called a second element, and similarly The second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the specified features, numbers, steps, operations, components, parts, or combinations thereof exist, and include one or more other features or numbers. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present specification, they are not to be interpreted in an ideal or excessively formal meaning. .

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a vehicle door system according to the present invention, and FIG. 2 is a diagram conceptually illustrating the installation positions of the buffer pad 20 and the air pocket 30 installed in the vehicle door 10 according to the present invention. .

Referring to the drawings, in the present invention, between the inner panel 12 and the outer panel 14 of the door 10, the buffer pad 20 is moved toward the outer panel 14, and the impact force applied to the outer panel 14 is buffer means for buffering; an air pocket 30 which expands and unfolds between the edge of the door 10 and the door opening 100 closed by the door 10 to open the door 10 closed in the door opening 100; and a controller 40 that controls the buffer pad 20 to move toward the outer panel 14 when the vehicle's collision condition is satisfied, and controls the air pocket 30 to expand when the vehicle's collision condition is satisfied. becomes the composition.

For example, the buffer pad 20 is installed in a plate shape between the inner panel 12 and the outer panel 14 under the door 10 . In particular, when the buffer pad 20 is mounted on the inner panel 12 side and a vehicle collision is expected, it is moved toward the outer panel 14, so that the impact force applied from the outside of the door 10 during a vehicle collision is reduced. It can be loaded on the buffer pad 20 .

In addition, the air pocket 30 may be made of the same material as an air bag cushion. When the controller 40 detects a collision signal, the inflator 32 explodes, and the air pocket 30 expands by the gas of the inflator 32 . unfolds

The air pocket 30 is built-in installed along the edge of the door 10 or installed along the door opening 100 formed in the vehicle body. It is forcibly opened from the opening 100 .

In addition, the controller 40 according to the exemplary embodiment of the present invention includes a non-volatile memory (not shown) configured to store data relating to an algorithm configured to control the operation of various components of the vehicle or software instructions for reproducing the algorithm. ) and a processor (not shown) configured to perform operations described below using data stored in the corresponding memory. Here, the memory and the processor may be implemented as separate chips. Alternatively, the memory and processor may be implemented as a single chip integrated with each other. A processor may take the form of one or more processors.

That is, when a side collision of the vehicle is expected, the buffer pad 20 is moved toward the outer panel 14 of the door 10 , so that the side impact applied to the door 10 through the cushioning means in case of a side collision of the vehicle. absorption and mitigation, thereby minimizing the risk of injury to passengers.

After that, when a side collision occurs, the air pocket 30 is expanded and deployed, thereby forcibly opening or separating the door 10 from the door opening 100 .

Therefore, by fundamentally solving the problem that the vehicle door does not open even if the door 10 of the vehicle is damaged, the passenger can easily escape from the vehicle, and the rescue operation of the passenger in the accident vehicle can be performed quickly.

On the other hand, Figure 3a, 3b is a view for explaining the operating state of the buffer means according to the present invention.

Referring to the drawings, the buffer means, one end of the shock absorber actuator 22 is fixed to the inner panel 12; The other end of the shock absorber actuator 22 is fixed to the buffer pad 20; The shock absorber actuator 22 is operated by the operation signal of the controller 40 to have a structure in which the buffer pad 20 is moved toward the outer panel 14 .

For example, a plurality of the shock absorber actuators 22 are distributed in a balanced manner within the surface area of the buffer pad 20 to stably relieve the impact force loaded on the buffer pad 20 .

That is, when the vehicle collision prediction condition is satisfied, the shock absorber actuator 22 is operated according to the operation signal of the controller 40 to move the buffer pad 20 toward the outer panel 14 .

Therefore, as the external impact force applied to the door 10 is transmitted to the shock absorber actuator 22 through the buffer pad 20, the external impact force is absorbed through the shock absorber actuator 22 to effectively reduce the impact applied from the side of the vehicle. This will allow for the protection of passengers.

In addition, according to the operation of the shock absorber actuator 22 , the buffer pad 20 may be configured to contact the outer panel 14 .

That is, as the buffer pad 20 is in contact with the outer panel 14 , the thickness of the buffer pad 20 is added to the outer panel 14 of the door 10 . Therefore, the external impact load is absorbed and reduced while passing through the outer panel and the buffer pad 20, thereby increasing the impact force reduction effect.

Furthermore, the outer panel 14 may be moved outwardly by the pressure of the buffer pad 20 in contact with the outer panel 14 .

As an embodiment for moving the outer panel 14 to the outside of the vehicle, the inner panel 12 and the outer panel 14 are connected by a rigid weak portion 16; As the rigid weak part 16 is deformed, the outer panel 14 may be moved.

That is, when the buffer pad 20 moves toward the outer panel 14 and presses the outer panel 14 according to the operation of the shock absorber actuator 22, the rigid weak part 16 is elongated and deformed while the outer panel 14 is deformed. The position is moved to the outside of this vehicle.

Accordingly, as the outer panel 14 is moved away from the inner panel 12, the shock absorption distance between the outer panel 14 and the inner panel 12 is extended, thereby improving the shock absorption efficiency.

On the other hand, in the present invention, when the side collision risk of the vehicle exceeds the set value, the collision prediction condition is satisfied; When the vehicle is completely stopped after detecting a side collision signal in a state in which the buffer pad 20 is moved toward the outer panel 14, the collision condition may be satisfied.

For example, referring to FIG. 1 , the state and position of an object close to the side of the own vehicle is detected through the sensor unit 70 such as radar/camera/rider, and various vehicle signals reflecting the driving state of the own vehicle are displayed in the controller 40 ) is entered in

Accordingly, by calculating the expected collision time with the vehicle approaching the side of the own vehicle through the controller 40, the side collision risk is calculated, and when the side collision risk is greater than or equal to the set value, it is determined that the collision expectation condition is satisfied. An operation signal is applied to the actuator 22 . In addition, the controller 40 may transmit an alarm signal through a human machine interface (HMI) indicating that a side collision of the vehicle is imminent.

After that, when the vehicle side collision signal is input to the controller 40, the controller 40 receives the vehicle signal from the vehicle and confirms that the vehicle is completely stopped, and then applies an operation signal to the inflator 32 to make the air pocket 30 ) to expand and expand.

In addition, according to the present invention, the structure tag 50 is connected to the controller 40; When the air pocket 30 is not deployed, the controller 40 may control the air pocket 30 to inflate when the rescue tag key 60 is connected to the rescue tag 50 .

For example, the rescue tag key 60 may be a card key distributed by a vehicle manufacturer or a dedicated key in the form of an application built into the terminal, and the rescue tag 50 is a tag of the rescue tag key 60 outside the vehicle. Alternatively, it may be installed at a position that can be recognized through touch.

That is, when the air pocket 30 is not deployed despite the collision condition being satisfied due to a side collision of the vehicle, the rescue team is dispatched to tag or touch the rescue tag key 60 to the rescue tag 50 Then, the information of the rescue tag key 60 is transmitted to the controller 40 through the rescue tag 50, so that the air pocket 30 can be inflated and deployed.

On the other hand, in the method of controlling the door system for a vehicle according to the present invention, the controller 40 includes a buffer pad 20 between the inner panel 12 and the outer panel 14 of the door 10 when the expected collision condition of the vehicle is satisfied. ) buffering step of buffering the impact force applied to the outer panel 14 by controlling the movement toward the outer panel (14); When the vehicle collision condition is satisfied, the controller 40 expands and deploys the air pocket 30 between the edge of the door 10 and the door opening 100 closed by the door 10 to form the door opening 100 . and a door opening step of opening the closed door 10 to the .

Referring generally to the control process of the vehicle door system according to the present invention with reference to FIG. 5 , by monitoring the side collision risk of the vehicle based on the signal detected by the sensor unit 70 and the vehicle signal while the vehicle is driving, the side collision is expected It is determined whether the condition is satisfied (S10).

As a result of the determination in S10, when it is determined that the side collision expectation condition is satisfied, by operating the shock absorber actuator 22, the buffer pad 20 is moved toward the outer panel 14 (S20).

Accordingly, when a side collision of the vehicle occurs, the external impact force applied to the door 10 is absorbed through the buffer pad 20 and the shock absorber actuator 22, thereby effectively absorbing and alleviating the impact applied from the side of the vehicle. This will minimize the risk of passenger injury.

On the other hand, after the shock absorber actuator 22 is operated, the side collision signal is monitored to determine whether the side collision condition is satisfied (S30).

As a result of the determination in S30, when it is determined that the side collision condition is satisfied, the air pocket 30 is expanded and deployed by operating the inflator 32 (S40).

Therefore, as the air pocket 30 is deployed, the door 10 is forcibly opened or separated from the door opening 100, thereby solving the problem that the vehicle door does not open, and thus the passenger can easily escape from the vehicle. Of course, the rescue operation of passengers in the accident vehicle can be done quickly.

However, after the accident of the vehicle, if the air pocket 30 is not deployed, it is determined whether the rescue-only key is tagged in the rescue-only tag 50 ( S50 ).

Accordingly, when the rescue-only key is tagged with the rescue-only tag 50 , the air pocket 30 is expanded and deployed to forcibly open the door 10 .

As described above, the present invention absorbs and mitigates the side impact applied to the door 10 by operating the buffer pad 20 and the shock absorber actuator 22 when a side collision of the vehicle is expected, thereby reducing the passenger will protect

Furthermore, when a side collision occurs, the air pocket 30 is expanded and deployed to forcibly open the door 10, so that a passenger in the accident vehicle can safely and quickly escape.

On the other hand, although the present invention has been described in detail only with respect to the specific examples described above, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims. .

10 : door
12: inner panel
14: outer panel
16: weak part of rigidity
20: buffer pad
22: shock absorber actuator
30: air pocket
32: Inflator
40: controller
50: structure dedicated tag
60: structure tag key
70: sensor unit
100: door opening

Claims (14)

a buffer means for buffering the impact force applied to the outer panel by moving the buffer pad toward the outer panel between the inner panel and the outer panel of the door;
an air pocket which expands and deploys between the edge of the door and the door opening closed by the door to open the door closed by the door opening; and
A vehicle door system comprising a; a controller that controls the buffer pad to move toward the outer panel when the vehicle's collision condition is satisfied, and controls the air pocket to expand when the vehicle's collision condition is satisfied. The method according to claim 1,
The buffer means,
One end of the shock absorber actuator is fixed to the inner panel;
The other end of the shock absorber actuator is fixed to the buffer pad;
A door system for a vehicle, characterized in that the shock absorber actuator is operated by the operation signal of the controller to move the buffer pad toward the outer panel. 3. The method according to claim 2,
A door system for a vehicle, characterized in that the buffer pad is in contact with the outer panel according to the operation of the shock absorber actuator. 4. The method of claim 3,
The vehicle door system, characterized in that the position of the outer panel is moved in the outside direction of the vehicle by the pressure of the buffer pad in contact with the outer panel. 5. The method according to claim 4,
the inner panel and the outer panel are connected by a rigid weak part;
The door system for a vehicle, characterized in that the outer panel is moved while the rigid weak part is deformed. The method according to claim 1,
If the risk of side collision of the vehicle exceeds the set value, the collision prediction condition is satisfied;
A vehicle door system, characterized in that it satisfies a collision condition when the vehicle is completely stopped after detecting a side collision signal in a state in which the buffer pad is moved toward the outer panel. The method according to claim 1,
a structure dedicated tag is connected to the controller;
When the air pocket is not deployed, the controller controls the air pocket to expand when the rescue tag key is connected to the rescue tag. A method of controlling the door system according to claim 1, comprising:
a buffer step of buffering, by the controller, an impact force applied to the outer panel by controlling the buffer pad to move toward the outer panel between the inner panel and the outer panel of the door when the expected collision condition of the vehicle is satisfied;
A door opening step in which the controller expands and deploys an air pocket between the edge of the door and the door opening closed by the door when the collision condition of the vehicle is satisfied to open the closed door in the door opening; . 9. The method of claim 8,
One end of the shock absorber actuator is fixed to the inner panel;
The other end of the shock absorber actuator is fixed to the buffer pad;
A method of controlling a door system for a vehicle, characterized in that the shock absorber actuator is operated by the operation signal of the controller to move the buffer pad toward the outer panel. 10. The method of claim 9,
A method for controlling a door system for a vehicle, characterized in that the buffer pad is in contact with the outer panel according to the operation of the shock absorber actuator. 11. The method of claim 10,
The method for controlling a door system for a vehicle, characterized in that the outer panel is moved outwardly by the pressure of the buffer pad in contact with the outer panel. 12. The method of claim 11,
the inner panel and the outer panel are connected by a rigid weak part;
The method for controlling a door system for a vehicle, characterized in that the outer panel is moved while the rigid weak part is deformed. 9. The method of claim 8,
If the risk of side collision of the vehicle exceeds the set value, the collision prediction condition is satisfied;
A method for controlling a vehicle door system, characterized in that the collision condition is satisfied when the vehicle is completely stopped after detecting a side collision signal in a state in which the buffer pad is moved toward the outer panel. 9. The method of claim 8,
a structure dedicated tag is connected to the controller;
When the air pocket is not deployed, when the rescue tag key is connected to the rescue tag, a controller controls the air pocket to expand.

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