A side airbag deployment system and a deployment method

Abstract

The application provides a side airbag point explosion system and a point explosion method, which comprises: a first acceleration sensor and a second acceleration sensor installed on the same side of a vehicle, wherein the first acceleration sensor is installed at a B column position of the vehicle and is used for sensing first side impact acceleration information of the vehicle, and the second acceleration sensor is installed at a side anti-collision beam position of the vehicle and is used for sensing second side impact acceleration information of the vehicle; and a controller connected with the first acceleration sensor and the second acceleration sensor, wherein the controller is used for judging whether the vehicle needs to point explode an airbag according to the first side impact acceleration information and the second side impact acceleration information, and outputting an ignition signal to an ignition device of the side airbag when the vehicle needs to point explode the airbag. The application can improve the effectiveness and timeliness of airbag point explosion.

Description

Technical Field

[0001] This invention relates to the field of vehicle passive safety technology, and in particular to a side airbag deployment system and deployment method. Background Technology

[0002] Airbags, as a vehicle's safety protection device, are deployed to provide auxiliary protection to occupants in the event of a collision. Typically, vehicles include front airbags that deploy in a frontal collision and side airbags that deploy in a side collision.

[0003] Currently, in order to automatically deploy side airbags in the event of a side collision, an acceleration sensor is installed on the side of the vehicle to collect the side collision acceleration information. This information is then processed by the airbag controller to determine whether a side collision has occurred. If a side collision has occurred, an ignition signal is sent to the ignition device to trigger the gas generator to produce expanding gas that quickly fills the airbag. The expanding airbag helps absorb the energy of the driver or occupants, preventing them from directly impacting the vehicle's structural components.

[0004] Currently, vehicles are equipped with only one accelerometer on the side to detect side impacts. To prevent accidental deployments due to impact or sensor malfunction causing the sensor to output maximum data, the industry generally uses the Y-axis collision signal detected by the airbag control unit (ACU) for auxiliary verification. (Y-axis refers to the vehicle's lateral direction, i.e., the width direction, and X-axis refers to the vehicle's longitudinal direction, i.e., the direction of travel). If the verification fails, the airbag will not deploy even if the accelerometer detects a side impact. However, because the airbag control unit is usually installed in the center of the vehicle, far from the side impact location, the waveform of the detected Y-axis collision signal rises slowly.

[0005] Specifically, such as Figure 1 As shown, in the actual side pole impact test of the project, it was found that the Y-direction collision signal detected by the airbag controller rises very slowly when a side impact occurs. Assuming that the auxiliary judgment algorithm is set to only pass the verification after three sampling points with a signal amplitude exceeding 2G, then for... Figure 1 Regarding the signals, the collision assistance algorithm will only determine that a side collision has occurred 15ms after the collision has occurred. This may result in a situation where the vehicle is severely damaged and the driver and passengers inside the vehicle have suffered serious injuries, but the side airbags have not deployed in time according to the set airbag deployment strategy. Summary of the Invention

[0006] To address the shortcomings of the prior art, this invention provides a side airbag deployment system and method to improve the effectiveness and timeliness of airbag deployment.

[0007] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0008] In a first aspect, the present invention provides a side airbag deployment system, comprising:

[0009] A first acceleration sensor and a second acceleration sensor are installed on the same side of the vehicle. The first acceleration sensor is installed at the B-pillar of the vehicle and is used to sense the first side impact acceleration information of the vehicle. The second acceleration sensor is installed at the side impact beam of the vehicle and is used to sense the second side impact acceleration information of the vehicle.

[0010] A controller connected to the first acceleration sensor and the second acceleration sensor is used to determine whether the vehicle needs to deploy the airbags based on the first side impact acceleration information and the second side impact acceleration information, and to output an ignition signal to the ignition device of the side airbags when the vehicle needs to deploy the airbags.

[0011] Preferably, the controller includes:

[0012] The main algorithm module is used to determine whether the vehicle has been involved in a side collision based on the first side collision acceleration information and the second side collision acceleration information;

[0013] The auxiliary algorithm module is used to perform anti-misoperation verification based on the first side-impact acceleration information or the second side-impact acceleration information:

[0014] The fusion module is used to determine whether the vehicle needs to deploy airbags based on the judgment result of the main algorithm module and the verification result of the auxiliary algorithm module.

[0015] Preferably, the main algorithm module includes:

[0016] The data processing unit is used to obtain first calculated values ​​of several side collision calibration parameters based on the first side collision acceleration information, and to obtain second calculated values ​​of several side collision calibration parameters based on the second side collision acceleration information;

[0017] The logic judgment unit is used to determine whether the first and second calculated values ​​of each of the side collision calibration parameters exceed their respective safety threshold ranges. If they both exceed the threshold range, the vehicle is determined to have experienced a side collision.

[0018] Preferably, the distance between the first acceleration sensor and the second acceleration sensor and the floor of the vehicle is not less than 100 mm.

[0019] Preferably, the interfaces of both the first acceleration sensor and the second acceleration sensor face the floor of the vehicle.

[0020] In a second aspect, the present invention provides a method for deploying a side airbag, comprising:

[0021] The vehicle's first side impact acceleration information is sensed by a first acceleration sensor, and the vehicle's second side impact acceleration information is sensed by a second acceleration sensor. The first acceleration sensor and the second acceleration sensor are installed on the same side of the vehicle, with the first acceleration sensor installed at the B-pillar of the vehicle and the second acceleration sensor installed at the side impact beam of the vehicle.

[0022] Based on the first side impact acceleration information and the second side impact acceleration information, it is determined whether the vehicle needs to deploy its airbags;

[0023] When the vehicle needs to deploy the airbags, an ignition signal is output to the ignition device of the side airbags.

[0024] Preferably, determining whether the vehicle needs to deploy airbags based on the first side impact acceleration information and the second side impact acceleration information includes:

[0025] Based on the first side impact acceleration information and the second side impact acceleration information, it is determined whether the vehicle has been involved in a side impact;

[0026] Perform error prevention verification based on the first side impact acceleration information or the second side impact acceleration information;

[0027] When the vehicle is involved in a side collision and the anti-misoperation check passes, it is determined that the vehicle needs to deploy its airbags.

[0028] Preferably, determining whether the vehicle has been involved in a side collision based on the first side impact acceleration information or the second side impact acceleration information includes:

[0029] Based on the first side impact acceleration information, a first calculated value of several side impact calibration parameters is obtained, and based on the second side impact acceleration information, a second calculated value of the several side impact calibration parameters is obtained;

[0030] Determine whether the first and second calculated values ​​of each of the side collision calibration parameters both exceed their respective safety threshold ranges. If both exceed, then determine that the vehicle has experienced a side collision.

[0031] Preferably, the step of performing anti-misoperation verification based on the first side-impact acceleration information or the second side-impact acceleration information includes:

[0032] Verify whether the first side-impact acceleration information or the second side-impact acceleration information exceeds a preset acceleration threshold within a predetermined number of consecutive sampling periods. If so, the verification passes.

[0033] Preferably, the plurality of side-impact calibration parameters include the vehicle's speed change, tilt angle change, energy change, and longitudinal moment of inertia.

[0034] By adopting the above technical solution, the present invention has the following beneficial effects:

[0035] This invention involves installing a first acceleration sensor at the B-pillar of a vehicle to detect first side impact acceleration information, and a second acceleration sensor at the side impact beam to detect second side impact acceleration information. A controller combines the first and second side impact acceleration information to determine whether airbag deployment is necessary. When airbag deployment is required, an ignition signal is sent to the airbag's ignition device to rapidly inflate and deploy the airbag. Because both the first and second acceleration sensors are located close to each other on the same side of the vehicle, the side impact acceleration information from both sensors increases rapidly upon a collision. Combining this information to determine airbag deployment provides a faster decision than existing technologies, thus shortening the airbag deployment delay. Furthermore, the redundant judgment based on data from the two acceleration sensors effectively ensures the accuracy of the ignition signal triggering. Attached Figure Description

[0036] Figure 1 This is a waveform diagram of the Y-axis collision signal detected by the airbag controller in the prior art;

[0037] Figure 2 This is a structural block diagram of a side airbag deployment system according to Embodiment 1 of the present invention;

[0038] Figure 3 This is a schematic diagram of the installation of the first acceleration sensor and the second acceleration sensor in Embodiment 1 of the present invention;

[0039] Figure 4 A waveform diagram of the side impact acceleration information sensed by the acceleration sensor when it is installed at the B-pillar of the vehicle.

[0040] Figure 5 A waveform diagram of the side impact acceleration information sensed by the acceleration sensor when it is installed at the side impact beam of the vehicle;

[0041] Figure 6 This is a flowchart of a side airbag deployment method in Embodiment 2 of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0043] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0044] Typical side airbags such as Figure 2 As shown, the system includes an ignition device 21, a gas generator 22, and an airbag 23 installed on the outside of the vehicle seat. When it is necessary to deploy the side airbag, an ignition signal should be output to the ignition device 21 to trigger the gas generator 22 to quickly generate expanding gas to rapidly inflate the airbag 23.

[0045] However, current technologies may result in situations where the vehicle is severely damaged and the driver and passengers have suffered serious injuries, but the side airbags still fail to deploy in time according to the preset airbag deployment strategy. To address this, the present invention provides a side airbag deployment system and method.

[0046] Example 1

[0047] This embodiment provides a side airbag deployment system; see details below. Figure 2 and Figure 3 As shown, the detonation system of this embodiment includes a first acceleration sensor 11 and a second acceleration sensor 12 installed on the same side of the vehicle, and a controller 13 connected to the first acceleration sensor 11 and the second acceleration sensor 12. The first acceleration sensor 11 is installed at the B-pillar of the vehicle and is used to sense first side impact acceleration information in the Y direction of the vehicle; the second acceleration sensor is installed at the side impact beam of the vehicle and is used to sense second side impact acceleration information in the Y direction of the vehicle; the controller 13 is used to determine whether the vehicle needs to deploy the airbag 23 based on the first and second side impact acceleration information, and when the vehicle needs to deploy the airbag 23, outputs an ignition signal to the ignition device 21 of the side airbag. It should be understood that... Figure 3 To make it easier to show the location of the acceleration sensor, it is drawn on the outside of the vehicle body; in reality, the acceleration sensor should be located inside the vehicle body.

[0048] When the ignition device 21 receives the ignition signal, it triggers the gas generator 22 to generate expanding gas to quickly fill the airbag 23. The expanding airbag 23 can help absorb the energy of the driver or passenger, prevent the human body from directly impacting the vehicle body structure, thereby reducing the injury to the driver and passenger.

[0049] This embodiment simultaneously places a first acceleration sensor 11 and a second acceleration sensor 12 on the same side of the vehicle, with the two sensors close together. Therefore, when a collision occurs on the corresponding side, the side impact acceleration information obtained by both sensors will increase rapidly. This embodiment combines the side impact acceleration information sensed by the two acceleration sensors to determine whether the vehicle needs to deploy the airbag 23. Compared with the prior art, it can obtain the judgment result faster, thereby shortening the delay time of airbag deployment. At the same time, redundant judgment based on the data from the two acceleration sensors can effectively ensure the accuracy of ignition signal triggering.

[0050] In one feasible manner, such as Figure 2 As shown, in this embodiment, the controller 13 determines whether the vehicle needs to deploy the airbags 23 through the main algorithm module 131, the auxiliary algorithm module 132, and the fusion module 133. The functions of each module are described in detail below:

[0051] In this embodiment, the main algorithm module 131 is specifically used to determine whether a side collision has occurred based on the first side collision acceleration information and the second side collision acceleration information.

[0052] Specifically, the main algorithm module 131 includes a data processing unit and a logic judgment unit. The data processing unit is used to obtain first calculated values ​​of several side-impact calibration parameters based on the first side-impact acceleration information sensed by the first acceleration sensor 11, and simultaneously obtain second calculated values ​​of several side-impact calibration parameters based on the second side-impact acceleration information sensed by the second acceleration sensor 12. The logic judgment unit is used to determine whether the first and second calculated values ​​of each side-impact calibration parameter both exceed their respective safety threshold ranges; if both exceed, it is determined that a side-impact collision has occurred.

[0053] In this embodiment, the aforementioned side-impact calibration parameters may include parameters such as the vehicle's speed change, tilt angle change, energy change, and longitudinal (X-direction) moment of inertia. After the data processing unit calculates the first and second calculated values ​​corresponding to each side-impact calibration parameter, the logic judgment unit determines whether both the first and second calculated values ​​of each side-impact calibration parameter exceed the corresponding safety threshold range. If both exceed, the vehicle is determined to have experienced a side-impact collision; otherwise, if either the first or second calculated value of each side-impact calibration parameter does not exceed the corresponding safety threshold range, the vehicle is determined not to have experienced a side-impact collision. The aforementioned safety threshold range may dynamically change according to preset rules.

[0054] In this embodiment, the auxiliary algorithm module 132 is specifically used to perform anti-false verification based on the first side impact acceleration information or the second side impact acceleration information, so as to avoid the accelerometer from being falsely triggered by the ignition signal due to impact or other reasons.

[0055] For example, the auxiliary algorithm module 132 can perform anti-misoperation verification in the following way: verify whether the first side collision acceleration information or the second side collision acceleration information exceeds a preset acceleration threshold (such as 3 sampling periods) within a predetermined number of consecutive sampling periods. If so, the verification passes; otherwise, the verification fails.

[0056] In this embodiment, the fusion module 133 is specifically used to determine whether the vehicle needs to deploy the airbag 23 based on the judgment result of the main algorithm module 131 and the verification result of the auxiliary algorithm module 132.

[0057] Specifically, when the main algorithm module 131 determines that the vehicle has experienced a side collision and the auxiliary algorithm module 132 passes the anti-misoperation verification, it determines that the vehicle needs to deploy the airbag 23; conversely, when the main algorithm module 131 determines that the vehicle has not experienced a side collision or the auxiliary algorithm module 132 fails the anti-misoperation verification, it determines that the vehicle does not need to deploy the airbag 23.

[0058] In this embodiment, to ensure that the acceleration sensors can accurately identify the collision signal, the height difference between the first acceleration sensor 11 and the second acceleration sensor 12 and the vehicle floor is not less than 100 mm. Preferably, the first acceleration sensor 11 is installed between the vehicle chassis frame and the door lock. The second acceleration sensor 12 is installed on the anti-collision beam inside the side door sheet metal, where the structure has high rigidity and is not easily deformed, preventing the second acceleration sensor 12 from being prematurely crushed and damaged during a collision.

[0059] In this embodiment, to avoid the intrusion of water and moisture, the interfaces of the first acceleration sensor 11 and the second acceleration sensor 12 face downwards, that is, they both face the bottom plate of the vehicle, and preferably the angle with the vertical direction is less than ±6°.

[0060] In this embodiment, to ensure that the accelerometers can detect the side impact acceleration information in the Y direction, the sensing directions of the first accelerometer 11 and the second accelerometer 12 are set along the Y direction, parallel to the extension direction of the mounting screws of the corresponding accelerometers (error less than ±6°). Preferably, the first-order resonant frequencies of the mounting locations of the first and second accelerometers 11 and 12 should both be greater than 500Hz. If they are less than 500Hz, it should be determined whether they meet the standard based on specific test data.

[0061] In this embodiment, the first and second acceleration sensors 11 and 12 are preferably capacitive acceleration sensors. In the capacitive acceleration sensor, the metal plate inside the sensing panel is connected to the oscillator through a circuit. The target object being detected acts as the other metal plate of the capacitor. Once a collision occurs, the collision signal is sent to the capacitive acceleration sensor, and the metal plate inside moves into the electrostatic field of the electrodes, changing the capacitance of the oscillator and outputting an electrical signal under the collision state. This electrical signal is the side impact acceleration information.

[0062] Once the first and second acceleration sensors 11 and 12 are installed on the vehicle, they can receive the corresponding side impact acceleration information. When a collision occurs on the corresponding side, the side is deformed by compression, and the collision signal is transmitted to the first and second acceleration sensors 11 and 12. The first and second acceleration sensors 11 and 12 will output the corresponding electrical signals (i.e., side impact acceleration information) to the controller 13. The controller 13 then determines whether the airbag 23 needs to be deployed based on the two side impact acceleration information. If the airbag 23 needs to be deployed, an ignition signal is output to the ignition device 21.

[0063] The ignition device 21 typically consists of an ignition circuit, an igniter, and ignition propellant. Upon receiving an ignition signal, the igniter ignites the propellant, causing gas to be generated in the gas generator 22. The gas generator 22 typically consists of a generating device and a metal casing, primarily responsible for generating inflation gas to rapidly inflate the airbag 23, thereby protecting the safety of the driver and passengers. Specifically, when a vehicle collision occurs, the gas generator 22, triggered by the ignition device 21, rapidly decomposes the solid propellant in the generating device to generate a large amount of gas. This large amount of gas enters the airbag through the outlet of the generating device, causing the airbag 23 to inflate and deploy rapidly, forming an elastic air cushion. This cushion also promptly leaks, contracts, and absorbs impact energy, effectively protecting the safety of the driver and passengers.

[0064] See below. Figure 4 and Figure 5 The curve in the middle, Figure 4 This shows the side impact acceleration information sensed by the accelerometer at two different locations on the B-pillar. Figure 5 The figure shows three side-impact acceleration data points detected by the accelerometers located at the upper, middle, and lower parts of the side impact beam. As can be seen from the figure, when the accelerometers are located at the B-pillar and the side impact beam, the detected side-impact acceleration data rises rapidly, becoming noticeably higher after approximately 5-7 ms. Therefore, this embodiment combines the side-impact acceleration data detected by the accelerometers at these two locations to determine whether the airbags 23 need to be deployed, resulting in a faster decision and thus shortening the deployment delay time of the side airbags during a side impact.

[0065] Example 2

[0066] This embodiment provides a method for deploying a side airbag, such as... Figure 6 As shown, the method specifically includes the following steps:

[0067] S1, the first side impact acceleration information of the vehicle is sensed by the first acceleration sensor 11, and the second side impact acceleration information of the vehicle is sensed by the second acceleration sensor 12. The first acceleration sensor 11 and the second acceleration sensor 12 are installed on the same side of the vehicle, and the first acceleration sensor 11 is installed at the B-pillar of the vehicle, and the second acceleration sensor is installed at the side impact beam of the vehicle.

[0068] S2, based on the first side impact acceleration information and the second side impact acceleration information, determine whether the vehicle needs to deploy the airbags 23.

[0069] S3, when the vehicle needs to deploy the airbag 23, an ignition signal is output to the ignition device 21 of the side airbag. After receiving the ignition signal, the ignition device 21 will trigger the gas generator 22 to generate expanding gas to quickly fill the airbag 23. The expanded airbag 23 can help absorb the energy of the driver or passenger, prevent the human body from directly impacting the vehicle body structure, thereby reducing the injury to the driver or passenger.

[0070] Since the first acceleration sensor 11 and the second acceleration sensor 12 are located on the same side of the vehicle and are relatively close to each other, the side impact acceleration information obtained by both sensors will increase rapidly when a collision occurs on the corresponding side. This invention combines the side impact acceleration information sensed by these two acceleration sensors to determine whether the airbag 23 needs to be deployed, enabling a faster determination and thus shortening the delay in airbag deployment during a side impact. Simultaneously, redundant judgment based on the data from the two acceleration sensors effectively ensures the accuracy of the ignition signal triggering.

[0071] In an optional implementation, the specific implementation process of step S2 in this embodiment is as follows:

[0072] S21, based on the first side impact acceleration information and the second side impact acceleration information, determine whether the vehicle has been involved in a side collision.

[0073] Specifically, firstly, based on the first side-impact acceleration information, first calculated values ​​of several side-impact calibration parameters are obtained, and second calculated values ​​of several side-impact calibration parameters are obtained based on the second side-impact acceleration information. Then, it is determined whether the first and second calculated values ​​of each side-impact calibration parameter (such as velocity change, tilt angle change, energy change, and longitudinal moment of inertia) exceed their respective corresponding safety threshold ranges. If both exceed, the vehicle is determined to have experienced a side-impact collision; otherwise, if any one of the first or second calculated values ​​of each side-impact calibration parameter does not exceed the corresponding safety threshold range, the vehicle is determined not to have experienced a side-impact collision. The aforementioned safety threshold ranges can be dynamically changed according to preset rules.

[0074] S22, perform anti-misoperation verification based on the first side collision acceleration information or the second side collision acceleration information.

[0075] Preferably, the specific anti-misoperation verification process is as follows: verify whether the first side collision acceleration information or the second side collision acceleration information exceeds a preset acceleration threshold (such as 2g) within a predetermined number of consecutive sampling periods. If so, the verification passes; otherwise, the verification fails.

[0076] S23, when step S21 determines that the vehicle has experienced a side collision and the anti-misoperation verification in step S22 passes, it is determined that the vehicle needs to deploy the airbag 23. Conversely, when step S21 determines that the vehicle has not experienced a side collision or the anti-misoperation verification in step S22 fails, it is determined that the vehicle does not need to deploy the airbag 23.

[0077] By adopting the above steps, this embodiment can improve the effectiveness and timeliness of side airbag deployment and prevent airbag 23 from being accidentally deployed.

[0078] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A side airbag deployment system, characterized in that, include: A first acceleration sensor and a second acceleration sensor are installed on the same side of the vehicle. The first acceleration sensor is installed at the B-pillar of the vehicle and is used to sense the first side impact acceleration information of the vehicle. The second acceleration sensor is installed at the side impact beam of the vehicle and is used to sense the second side impact acceleration information of the vehicle. A controller connected to the first acceleration sensor and the second acceleration sensor is used to determine whether the vehicle needs to deploy the airbag based on the first side impact acceleration information and the second side impact acceleration information, and to output an ignition signal to the ignition device of the side airbag when the vehicle needs to deploy the airbag. The controller includes: The main algorithm module is used to determine whether the vehicle has been involved in a side collision based on the first side collision acceleration information and the second side collision acceleration information; The auxiliary algorithm module is used to perform anti-misoperation verification based on the first side-impact acceleration information or the second side-impact acceleration information: The fusion module is used to determine whether the vehicle needs to deploy airbags based on the judgment result of the main algorithm module and the verification result of the auxiliary algorithm module. The main algorithm module includes: The data processing unit is used to obtain first calculated values ​​of several side collision calibration parameters based on the first side collision acceleration information, and to obtain second calculated values ​​of several side collision calibration parameters based on the second side collision acceleration information; The logic judgment unit is used to determine whether the first and second calculated values ​​of each of the side collision calibration parameters exceed their respective safety threshold ranges. If they both exceed the threshold range, the vehicle is determined to have experienced a side collision. Several of the side-impact calibration parameters include the vehicle's corresponding speed change, tilt angle change, energy change, and longitudinal moment of inertia.

2. The side airbag deployment system as described in claim 1, characterized in that, The distance between the first acceleration sensor and the second acceleration sensor and the vehicle floor is not less than 100 mm.

3. The side airbag deployment system as described in claim 1, characterized in that, The interfaces of both the first and second acceleration sensors face the floor of the vehicle.

4. A method for deploying a side airbag, characterized in that, The side airbag deployment system as described in claim 1, wherein the deployment method includes: The vehicle's first side impact acceleration information is sensed by a first acceleration sensor, and the vehicle's second side impact acceleration information is sensed by a second acceleration sensor. The first acceleration sensor and the second acceleration sensor are installed on the same side of the vehicle, with the first acceleration sensor installed at the B-pillar of the vehicle and the second acceleration sensor installed at the side impact beam of the vehicle. Based on the first side impact acceleration information and the second side impact acceleration information, it is determined whether the vehicle needs to deploy its airbags; When the vehicle needs to deploy the airbags, an ignition signal is output to the ignition device of the side airbags.

5. The side airbag deployment method as described in claim 4, characterized in that, The step of determining whether the vehicle needs to deploy airbags based on the first side impact acceleration information and the second side impact acceleration information includes: Based on the first side impact acceleration information and the second side impact acceleration information, it is determined whether the vehicle has been involved in a side impact; Perform error prevention verification based on the first side impact acceleration information or the second side impact acceleration information; When the vehicle is involved in a side collision and the anti-misoperation check passes, it is determined that the vehicle needs to deploy its airbags.

6. The side airbag deployment method as described in claim 5, characterized in that, The step of determining whether the vehicle has been involved in a side collision based on the first side impact acceleration information or the second side impact acceleration information includes: Based on the first side impact acceleration information, a first calculated value of several side impact calibration parameters is obtained, and based on the second side impact acceleration information, a second calculated value of the several side impact calibration parameters is obtained; Determine whether the first and second calculated values ​​of each of the side collision calibration parameters both exceed their respective safety threshold ranges. If both exceed, then determine that the vehicle has experienced a side collision.

7. The side airbag deployment method as described in claim 5, characterized in that, The step of performing anti-misoperation verification based on the first side-impact acceleration information or the second side-impact acceleration information includes: Verify whether the first side impact acceleration information or the second side impact acceleration information exceeds a preset acceleration threshold within a predetermined number of consecutive sampling periods. If so, the verification passes.

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