Air bag restraint system based on collision automatic bouncing door opening system and control method

Abstract

The invention discloses a safety air bag-based collision automatic bouncing door opening system and a control method, the safety air bag-based collision automatic bouncing door opening system comprises a door safety air bag module mounted in a door, the door safety air bag module is used for protecting a driver and pushing the door outwards, and the safety air bag-based collision automatic bouncing door opening system further comprises a door lock safety air bag module integrated in a door lock mechanism; the door lock safety air bag module is used for pushing open an automobile door lock to enable the door lock to be in a non-locking state, the sensor group is used for detecting an impact signal, the sensor group is used for detecting whether an automobile is impacted or not and detecting the impact force, and the control unit is used for synchronously activating the automobile door safety air bag module and the door lock safety air bag module according to the sensor signal; the miniature door lock safety air bag module is installed on the door lock part of the vehicle door to forcibly open the door lock, high pressure is provided through the vehicle door safety air bag to enable the vehicle door to pop open, and the situation that the vehicle door cannot be opened when the vehicle is collided can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the field of automated machinery, and in particular to an airbag-based automatic door ejection system upon impact and a control method thereof. Background Art

[0002] Traditional car doors are prone to mechanical locks becoming stuck due to structural deformation during side impacts, preventing occupants from manually unlocking them. Existing escape systems often rely on external window-breaking tools, which are unable to actively release the door at the moment of impact. Some emergency unlocking devices require manual activation and can fail if the occupant is unconscious or the circuitry is damaged.

[0003] Necessity of improvement of the present invention:

[0004] Through the dual airbag linkage design of the car door and door lock, instant detection of impact energy and automatic opening of the car door can be achieved, breaking through the traditional passive rescue mode. Summary of the Invention

[0005] The main purpose of the present invention is to provide an airbag-based automatic door opening system and control method. When the vehicle is hit, the system triggers the door opening device through the airbag linkage, which is used to solve the problem of escape and rescue difficulties caused by locked doors after a collision.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An airbag-based automatic door ejection system includes a door airbag module installed inside the door, the door airbag module is used to protect the driver and push the door outward;

[0008] Also included is a door lock airbag module integrated in the door lock mechanism, the door lock airbag module is used to push open the car door lock, so that the door lock is opened, and the door is pushed open by the door airbag module;

[0009] A sensor group for detecting an impact signal, wherein the sensor group is used to detect whether the vehicle has been impacted and the intensity of the impact;

[0010] And a control unit that synchronously activates the door airbag module and door lock airbag module based on sensor signals.

[0011] Furthermore, the door lock airbag module adopts a directional explosion-type inflation structure, and the door lock airbag module includes a first airbag module and a second airbag module.

[0012] Furthermore, the first airbag module is used to pop open the electric locking structure of the car lock, and is used to release the electric locking of the car door lock. The second airbag module is used to pop open the car lock tongue linkage structure, so that the lock tongue opens and thus the car door is opened.

[0013] Furthermore, there is a 0.03 second delay between the first airbag module and the second airbag module, that is, the second airbag module is activated 0.03 seconds after the first airbag module is inflated.

[0014] Furthermore, there is a delay of 0.03-0.08 seconds between the door lock airbag module and the vehicle door airbag module, that is, the vehicle door airbag module is activated 0.03-0.08 seconds after the door lock airbag module is activated.

[0015] Furthermore, the control unit includes a redundant power supply module, and the super capacitor maintains power supply for at least 5 seconds after the main power supply is disconnected.

[0016] Furthermore, the door airbag module enables the door to open with a stroke of 10-20 cm.

[0017] Furthermore, the airbag deflation time of the door lock airbag module and the door airbag module can be adjusted in the range of 3-15 seconds.

[0018] Furthermore, the door airbag module includes a first airbag assembly installed on the side wall of the door close to the vehicle cabin, used to protect the driver or passengers; and a second airbag assembly installed between the door and the frame, used to push the door open.

[0019] Furthermore, the control method comprises the steps of:

[0020] S1: The sensor group detects that the peak acceleration of the B-pillar on the corresponding side of the vehicle reaches or exceeds 18G and lasts for 0.2 seconds;

[0021] S2: The control unit sends an activation signal to the door lock airbag module and the door airbag module of the corresponding side door. The first airbag module of the door lock airbag module unlocks the door lock within 0.02 seconds, and the second airbag module inflates to push open the lock tongue within 0.05 seconds, completely unlocking the door.

[0022] S3: After the door lock airbag module is activated, the door airbag module inflates after a delay of 0.03-0.08 seconds, pushing the door outward 15 cm.

[0023] S4: After the car door is pushed open, the airbag deflation is delayed to prevent the airbag from hindering the driver or passengers from leaving the car.

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

[0025] The present invention is used for a system that triggers a door pop-up device through airbag linkage when a vehicle is hit, and is used to solve the problem of difficulty in escape and rescue caused by locked doors after a collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0028] See also Figure 1 As shown, an airbag-based automatic door opening system and control method are provided. When the vehicle is hit, the system triggers the door opening device through the linkage of the airbag, which is used to solve the problem of escape and rescue difficulties caused by locked doors after a collision.

[0029] To achieve the above object, the technical solution adopted by the present invention is:

[0030] An airbag-based automatic door ejection system includes a door airbag module installed inside the door, the door airbag module is used to protect the driver and push the door outward;

[0031] Also included is a door lock airbag module integrated in the door lock mechanism, the door lock airbag module is used to push open the car door lock, so that the door lock is opened, and the door is pushed open by the door airbag module;

[0032] A sensor group for detecting an impact signal, wherein the sensor group is used to detect whether the vehicle has been impacted and the intensity of the impact;

[0033] And a control unit that synchronously activates the door airbag module and door lock airbag module based on sensor signals.

[0034] The door lock airbag module adopts a directional explosion-type inflation structure, and the door lock airbag module includes a first airbag module and a second airbag module.

[0035] The first airbag module is used to pop open the electric locking structure of the car lock and release the electric locking of the car door lock. The second airbag module is used to pop open the car lock tongue linkage structure to open the lock tongue and thus open the car door.

[0036] There is a 0.03 second delay between the first airbag module and the second airbag module, that is, the second airbag module is activated 0.03 seconds after the first airbag module is inflated.

[0037] The first airbag module is used to push the linkage end of the unlocking mechanism inside the vehicle door to unlock the door lock, and connect the vehicle door lock tongue to open the linkage structure through the second airbag module to keep the vehicle door in the open state. After the vehicle door lock is opened, the lock tongue is maintained in the open state, and the vehicle door cannot be locked again.

[0038] There is a delay of 0.03-0.08 seconds between the door lock airbag module and the vehicle door airbag module, that is, the vehicle door airbag module is activated 0.03-0.08 seconds after the door lock airbag module is activated.

[0039] The control unit includes a redundant power supply module, and the super capacitor maintains power supply for at least 5 seconds after the main power supply is disconnected.

[0040] The door airbag module allows the door to open with a stroke of 10-20CM.

[0041] The airbag deflation time of the door lock airbag module and the vehicle door airbag module can be adjusted in the range of 3-15 seconds.

[0042] The door airbag module includes a first airbag assembly installed on the side wall of the door close to the vehicle cabin, used to protect the driver or passengers; and a second airbag assembly installed between the door and the vehicle frame, used to push the door open.

[0043] The control method comprises the steps of:

[0044] S1: The sensor group detects that the peak acceleration of the B-pillar on the corresponding side of the vehicle reaches or exceeds 18G and lasts for 0.2 seconds;

[0045] S2: The control unit sends an activation signal to the door lock airbag module and the door airbag module of the corresponding side door. The first airbag module of the door lock airbag module unlocks the door lock within 0.02 seconds, and the second airbag module inflates to push open the lock tongue within 0.05 seconds, completely unlocking the door.

[0046] S3: After the door lock airbag module is activated, the door airbag module inflates after a delay of 0.03-0.08 seconds, pushing the door outward 15 cm.

[0047] S4: After the car door is pushed open, the airbag deflation is delayed to prevent the airbag from hindering the driver or passengers from leaving the car.

[0048] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. An airbag-based automatic door opening system, comprising a door airbag module mounted inside the door, which is used to protect the driver and push the door outward; Its characteristics are: Also included is a door lock airbag module integrated in the door lock mechanism, the door lock airbag module is used to push open the car door lock, so that the door lock is opened, and the door is pushed open by the door airbag module; A sensor group for detecting an impact signal, wherein the sensor group is used to detect whether the vehicle has been impacted and the intensity of the impact; And a control unit that synchronously activates the door airbag module and door lock airbag module based on sensor signals.

2. The system according to claim 1, wherein: The door lock airbag module adopts a directional explosion-type inflation structure, and the door lock airbag module includes a first airbag module and a second airbag module.

3. The system according to claim 2, characterized in that: The first airbag module is used to pop open the electric locking structure of the car lock and release the electric locking of the car door lock. The second airbag module is used to pop open the car lock tongue linkage structure to open the lock tongue and thus open the car door.

4. The system according to claim 3, wherein: There is a 0.03 second delay between the first airbag module and the second airbag module, that is, the second airbag module is activated 0.03 seconds after the first airbag module is inflated.

5. The system according to claim 1, wherein: There is a delay of 0.03-0.08 seconds between the door lock airbag module and the vehicle door airbag module, that is, the vehicle door airbag module is activated 0.03-0.08 seconds after the door lock airbag module is activated.

6. The system according to claim 1, wherein: The control unit includes a redundant power supply module, and the super capacitor maintains power supply for at least 5 seconds after the main power supply is disconnected.

7. The system according to claim 1, wherein: The door airbag module allows the door to open with a stroke of 10-20CM.

8. The system according to claim 1, wherein: The airbag deflation time of the door lock airbag module and the vehicle door airbag module can be adjusted in the range of 3-15 seconds.

9. The system according to claim 1, wherein: The door airbag module includes a first airbag assembly installed on the side wall of the door close to the vehicle cabin, used to protect the driver or passengers; and a second airbag assembly installed between the door and the vehicle frame, used to push the door open.

10. A control method based on the system according to any one of claims 1 to 9, characterized in that: Including steps: S1: The sensor group detects that the peak acceleration of the B-pillar on the corresponding side of the vehicle reaches or exceeds 18G and lasts for 0.2 seconds; S2: The control unit sends an activation signal to the door lock airbag module and the door airbag module of the corresponding side door. The first airbag module of the door lock airbag module unlocks the door lock within 0.02 seconds, and the second airbag module inflates to push open the lock tongue within 0.05 seconds, completely unlocking the door. S3: After the door lock airbag module is activated, the door airbag module inflates after a delay of 0.03-0.08 seconds, pushing the door outward 15 cm. S4: After the car door is pushed open, the airbag deflation is delayed to prevent the airbag from hindering the driver or passengers from leaving the car.

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