Passenger car seat safety air bag triggering control method and device and passenger car seat

Abstract

The invention belongs to the technical field of vehicle seats, and provides a passenger car seat safety air bag triggering control method and device and a passenger car seat. The method comprises the following steps that a first parameter signal of a vehicle is obtained to judge whether a first condition for triggering a safety air bag is met or not; after the first condition is met, a second parameter signal is obtained to judge whether the second parameter signal meets a second condition for triggering the safety air bag or not; and when the second condition is met, an ignition blasting instruction is sent to a gas generator of the safety air bag so as to trigger the safety air bag. The passenger car seat has the advantages that the safety air bag assemblies are additionally arranged on the two sides of the backrest of the passenger car seat, when a car collides or the seat inclines by a certain angle or above, safety air bags can be triggered, the air bags can instantly wrap and protect the head and the two sides of the trunk of a passenger, and the safety of the passenger can be effectively protected to a certain degree.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle seats, and particularly to a method and device for triggering and controlling an airbag of a bus seat and a bus seat. Background Art

[0002] An automotive airbag is a passive safety system designed to reduce the risk of injury to vehicle occupants during a collision. When a vehicle collides with a certain impact force, sensors detect the collision and trigger the deployment of the airbag. The airbag contains solid sodium azide or other similar substances that rapidly decompose under the action of an electric ignition device to generate a large amount of gas (usually nitrogen), causing the airbag to inflate and fill the space in the cockpit, thereby cushioning the direct impact between the passenger and the vehicle's internal structure.

[0003] The airbag system in a bus is similar to that in a regular passenger car, but due to the special characteristics of a bus (such as a larger body, more passenger seats, etc.), its design and configuration may differ from that of a regular passenger car. Some buses may be equipped with side airbags or curtain airbags to protect passengers from side collisions. Such airbags are usually installed on the outside of the seat or inside the door, and sometimes also extend along the top of the vehicle compartment to cover a larger area.

[0004] However, not all buses are standardly equipped with this function, especially considering cost factors and the complexity of the internal space layout of the bus. On the other hand, the existing triggering conditions for airbags are inaccurate, the triggering processing time is long, and the triggering time is relatively delayed, which may result in the problem of the airbag failing to deploy in an emergency. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and device for triggering and controlling an airbag of a bus seat and a bus seat to solve the above problems.

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

[0007] A method for triggering and controlling an airbag of a bus seat includes the following steps:

[0008] Obtain a first parameter signal of the vehicle to determine whether the first condition for triggering the airbag is satisfied;

[0009] After the first condition is satisfied, obtain a second parameter signal to determine whether the second parameter signal satisfies the second condition for triggering the airbag; and

[0010] When the second condition is satisfied, send a point fire and explosion instruction to the gas generator of the airbag to trigger the airbag.

[0011] Further, the first parameter signal is the vehicle speed signal or the acceleration signal.

[0012] Further, when the vehicle driving speed or acceleration exceeds a preset threshold, it is considered that the first condition for triggering the airbag is satisfied.

[0013] Further, the second parameter signal is the signal output by the collision sensor or the signal output by the angle sensor.

[0014] Further, when the second parameter signal is the signal output by the collision sensor, whether the output signal of the collision sensor is received is used as the second condition for triggering the airbag.

[0015] Further, the collision sensors are arranged on the side of the vehicle body to obtain the vehicle side collision signal.

[0016] Further, when the second parameter signal is the signal output by the angle sensor, the angle deflection value of the seat is used as the second condition for triggering the airbag.

[0017] Further, when the angle deflection value of the seat exceeds a preset threshold, it is considered that the second condition for triggering the airbag is satisfied.

[0018] The present invention also provides a bus seat airbag trigger control device, including a processor and a memory. Wherein, when the processor executes the computer program stored in the memory, the above-mentioned bus seat airbag trigger control method is implemented.

[0019] The present invention also provides a bus seat, configured with the above-mentioned bus seat airbag trigger control device, and an airbag assembly;

[0020] The airbag assembly is located on both sides of the backrest of the seat.

[0021] Compared with the prior art, the present invention at least includes the following beneficial effects:

[0022] (1) By setting double conditions to trigger the airbag, it is ensured that the airbag is triggered under appropriate circumstances, thereby making the final airbag detonation control more accurate, improving the airbag control accuracy, and avoiding the misfiring of the airbag from affecting the driver's operation and endangering the safety of passengers.

[0023] (2) When a vehicle collision occurs or the seat tilts more than a certain angle, the airbag will be triggered, which can instantaneously wrap and protect the head and both sides of the trunk of the passenger, and can effectively protect the safety of the passenger to a certain extent. Description of the Drawings

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the frame of a passenger car seat equipped with a safety airbag in the embodiments provided by the present invention;

[0026] Figure 2 It is a schematic flow diagram of the method for triggering and controlling the safety airbag of a passenger car seat in the embodiments provided by the present invention. Specific Embodiments

[0027] It should be noted that in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the drawings, but the present invention is not limited to these embodiments.

[0031] As Figure 1 shown, this embodiment provides a passenger car seat, which can be a passenger seat or a driver's seat. A passenger car seat safety airbag triggering and controlling device and a safety airbag assembly are configured on the seat. The safety airbag assembly is located on both sides of the backrest of the seat.

[0032] When a vehicle collision occurs or the seat tilts at an angle greater than a certain degree, the airbag will be triggered, which can instantaneously wrap and protect the passenger's head and both sides of the torso, and can effectively protect the passenger's safety to a certain extent.

[0033] In the airbag triggering control device, it includes a processor and a memory. Among them, when the processor executes the computer program stored in the memory, a method for triggering the airbag of a passenger car seat is realized.

[0034] Specifically, as Figure 2 shown, in this embodiment, the method for triggering the airbag of a passenger car seat includes the following steps:

[0035] S1. Obtain the first parameter signal of the vehicle to determine whether the first condition for triggering the airbag is met;

[0036] S2. After the first condition is met, obtain the second parameter signal to determine whether the second parameter signal meets the second condition for triggering the airbag;

[0037] S3. When the second condition is met, send a point fire and explosion instruction to the gas generator of the airbag to trigger the airbag.

[0038] In this embodiment, the airbag is triggered by setting double conditions to ensure that the airbag is triggered under appropriate circumstances, thereby making the final airbag ignition control more accurate, improving the airbag control accuracy, and avoiding the misfiring of the airbag from affecting the driver's operation and endangering the safety of passengers.

[0039] Among them, the first parameter signal is the speed signal or acceleration signal of the vehicle. When the driving speed or acceleration of the vehicle exceeds the preset threshold, it is considered that the first condition for triggering the airbag is met.

[0040] First, by obtaining the speed or acceleration signal of the vehicle, it is indicated that the passenger car is currently in a driving state rather than a stopped state, thus avoiding triggering the airbag when the vehicle is in a stationary state.

[0041] In the case of a collision, the acceleration of the vehicle is detected by the acceleration sensor of the vehicle. When the vehicle acceleration reaches the set threshold, the airbag is triggered to open.

[0042] However, the above solution does not consider that before the vehicle speed or acceleration reaches the set threshold, a series of braking operations are likely to have occurred in the vehicle, and these braking operations will cause the occupant's body to move forward. Simply judging whether to trigger the airbag based on the set speed or acceleration threshold will result in the airbags on both sides of the backrest not being able to effectively protect the passenger from impact in the case where the braking has caused the occupant to move forward.

[0043] Therefore, after this application determines that the first condition is satisfied, it further determines whether the second parameter signal satisfies the second condition for triggering the airbag, and when the second condition is satisfied, it sends a detonation command to the gas generator of the airbag to trigger the airbag.

[0044] Among them, the second parameter signal is the signal output by the collision sensor or the signal output by the angle sensor.

[0045] When the second parameter signal is the signal output by the collision sensor, whether the output signal of the collision sensor is received is used as the second condition for triggering the airbag. The collision sensor is arranged on the side of the vehicle body to obtain the vehicle side collision signal.

[0046] At the first moment when the vehicle encounters a side impact, the collision sensor located on the side of the vehicle body will collect the corresponding signal. When the vehicle is impacted, it is necessary to trigger the airbag to wrap and protect the head and both sides of the torso of the passenger, effectively protecting the safety of the passenger.

[0047] When the second parameter signal is the signal output by the angle sensor, the angle deflection value of the seat is used as the second condition for triggering the airbag, and when the angle deflection value of the seat exceeds the preset threshold, it is considered that the second condition for triggering the airbag is satisfied.

[0048] When the vehicle encounters a side collision, it usually squeezes the passenger seat from the side. Especially when the seat deflects, it is extremely easy to pose a threat to the driver or passenger. Therefore, in this embodiment, the deflection angle of the seat is detected as the trigger condition of the airbag, effectively protecting the safety of the passenger.

[0049] In this embodiment, the signal detected by the sensor is received and processed by the electronic system. After being calculated by the electronic system, if it is determined that the airbag needs to be opened, a detonation command will be issued. This command will trigger the gas generator, and the gas generator will generate a large amount of gas, so that the generated gas fills the airbag through the air duct, and the airbag expands rapidly to form a soft airbag.

[0050] The inflated airbag will cover the head and side of the occupant's body, absorb and disperse the collision energy, and reduce the risk of the occupant being injured.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A passenger car seat airbag triggering control method, characterized in that: The steps include: Acquire a first parameter signal of the vehicle to determine whether a first condition for triggering an airbag is met; After the first condition is met, obtaining a second parameter signal to determine whether the second parameter signal meets a second condition for triggering the airbag; as well as When the second condition is met, an ignition and explosion command is sent to the gas generator of the airbag to trigger the airbag.

2. A passenger car seat airbag triggering control method according to claim 1, characterized in that: The first parameter signal is a speed signal or an acceleration signal of the vehicle.

3. A passenger car seat airbag triggering control method according to claim 2, characterized in that: When the vehicle's speed or acceleration exceeds a preset threshold, it is considered that the first condition for triggering the airbag is met.

4. A passenger car seat airbag triggering control method according to claim 1, characterized in that: The second parameter signal is a signal output by a collision sensor or a signal output by an angle sensor.

5. A passenger car seat airbag triggering control method according to claim 4, characterized in that: When the second parameter signal is a signal output by a collision sensor, whether the output signal of the collision sensor is received is used as the second condition for triggering the airbag.

6. A passenger car seat airbag triggering control method according to claim 5, characterized in that: The collision sensor is arranged on the side of the vehicle body to obtain a vehicle side collision signal.

7. A passenger car seat airbag triggering control method according to claim 4, characterized in that: When the second parameter signal is a signal output by an angle sensor, the angle deflection value of the seat is used as the second condition for triggering the airbag.

8. A passenger car seat airbag triggering control method according to claim 7, characterized in that: When the angular deflection value of the seat exceeds a preset threshold, it is considered that the second condition for triggering the airbag is met.

9. A passenger car seat airbag trigger control device, characterized in that: The invention comprises a processor and a memory, wherein when the processor executes a computer program stored in the memory, the passenger car seat airbag triggering control method as claimed in any one of claims 1 to 8 is implemented.

10. A passenger car seat, characterized in that: A passenger car seat airbag triggering control device as claimed in claim 9 and an airbag assembly are provided; The safety airbag components are located on both sides of the seat backrest.

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