Airbag controller and vehicle thereof

Abstract

The application relates to an airbag controller and a vehicle thereof, which comprises a shell, a bottom plate, a circuit board and a driving piece, the shell is provided with a containing cavity, the bottom plate is connected with the shell and covers the opening of the containing cavity, the bottom plate is provided with a through hole communicated with the containing cavity and is used for being connected with the central channel metal plate of the vehicle, the circuit board is located in the containing cavity and is connected with the shell, the circuit board is arranged in a spaced mode with the bottom plate, the circuit board is provided with a detection loop, the detection loop comprises a resistance detection device, a rated resistance and a switch which are connected with each other in series, the switch is used for controlling the on-off of the current between the resistance detection device and the rated resistance, the driving piece is arranged in the through hole in a spaced mode with the hole wall of the through hole, the driving piece is arranged in a protruding mode on the side of the bottom plate away from the shell, and the driving piece is in transmission connection with the switch. The airbag controller and the vehicle thereof can effectively prevent the airbag from being misfired.

Description

Technical Field

[0001] This application belongs to the technical field of automotive airbag controllers, specifically relating to an airbag controller and its vehicle. Background Technology

[0002] The airbag controller is a component used to receive collision signals and control the deployment of airbags, issuing detonation commands to the airbags. It is generally located on the sheet metal of the central tunnel of the vehicle body, below the gear shift mechanism and in front of the parking brake.

[0003] However, the existing airbag controller is installed behind the sheet metal of the central tunnel. If the airbag controller is not installed reliably, the airbag may misfire. Utility Model Content

[0004] The purpose of this application is to provide an airbag controller and its vehicle, which can effectively prevent the airbag from igniting accidentally.

[0005] The first aspect of this application discloses an airbag controller, comprising: a housing, a base plate, a circuit board, and a drive component. The housing has a receiving cavity; the base plate is connected to the housing and covers the opening of the receiving cavity, the base plate has a through hole communicating with the receiving cavity, and the base plate is used for sheet metal connection with the central tunnel of a vehicle; the circuit board is located in the receiving cavity and connected to the housing, the circuit board is spaced apart from the base plate, the circuit board has a detection circuit, the detection circuit includes a resistance detection device, a rated resistor, and a switch connected in series, the switch is used to control the current flow between the resistance detection device and the rated resistor; the drive component passes through the through hole and is spaced apart from the hole wall of the through hole, the drive component protrudes from the side of the base plate away from the housing, and the drive component is kinetically connected to the switch.

[0006] In one exemplary embodiment of this application, the switch includes a housing and a conductive element. The housing has a guide cavity and a connecting hole. The connecting hole communicates with the guide cavity. The conductive element is located inside the guide cavity and is movably connected to the housing. The conductive element is used to control the current flow between the resistance detection device and the rated resistor. The driving element passes through the connecting hole and is spaced apart from the hole wall of the connecting hole. The driving element is drively connected to the conductive element.

[0007] In one exemplary embodiment of this application, the minimum outer diameter of the conductive element is greater than the inner diameter of the connecting hole.

[0008] In one exemplary embodiment of this application, the through hole and the connecting hole are arranged correspondingly along the axial direction of the guide cavity.

[0009] In one exemplary embodiment of this application, the airbag controller further includes an elastic element located outside the guide cavity and sleeved on the drive element. One end of the elastic element is connected to the outer shell, and the other end of the elastic element is connected to the drive element.

[0010] In an exemplary embodiment of this application, the driving member includes a first driving part and a second driving part. The first driving part is connected between the second driving part and the conductive member. The first driving part passes through the connecting hole, and the second driving part passes through the through hole. The outer diameter of the first driving part is smaller than the outer diameter of the second driving part. The elastic member is sleeved on the first driving part and is connected between the outer shell and the second driving part.

[0011] In one exemplary embodiment of this application, the base plate is provided with a first mounting hole and a second mounting hole, the first mounting hole, the second mounting hole and the through hole are spaced apart from each other; the airbag controller further includes a first fastener and a second fastener, the first fastener passes through the first mounting hole and is connected to the housing; the second fastener passes through the second mounting hole and is connected to the central tunnel sheet metal of the vehicle.

[0012] In one exemplary embodiment of this application, the base plate is provided with three second mounting holes, which are spaced apart and respectively form the three vertices of a triangle.

[0013] In one exemplary embodiment of this application, the distance between the outer peripheral side of the driving member and the wall of the through hole is equal, and the distance between the outer peripheral side of the driving member and the wall of the through hole ranges from 0.1 mm to 0.3 mm.

[0014] A second aspect of this application discloses a vehicle including a central tunnel sheet metal and the aforementioned airbag controller, the airbag controller being connected to the central tunnel sheet metal.

[0015] The proposed solution has the following beneficial effects: In this embodiment, when the base plate of the airbag controller is installed on the central channel sheet metal, the driving component, which passes through the through hole in the base plate and protrudes from the side of the base plate away from the housing, will contact the central channel sheet metal and move into the accommodating cavity under the squeezing action of the central channel sheet metal. If the airbag controller is reliably installed, the driving component can drive the switch to close, the detection circuit is in a connected state, the resistance detection device detects that the resistance value of the detection circuit is the rated resistance value, and the ignition function of the airbag controller can be used normally. If the airbag controller is not reliably installed, the driving component fails to drive the switch to close, the detection circuit is in a disconnected state, the resistance detection device detects that the resistance value of the detection circuit is infinite, and the ignition function of the airbag controller is disabled, effectively preventing accidental ignition of the airbag.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. The drawings herein are for illustrating the inventive concept of this application and are not entirely equivalent to the structure of the actual product protected by this application.

[0018] Figure 1 A front view of the airbag controller in an embodiment of this application is shown.

[0019] Figure 2 A left view of the airbag controller in an embodiment of this application is shown.

[0020] Figure 3 A bottom view of the airbag controller in an embodiment of this application is shown.

[0021] Figure 4 A partial structural diagram of the airbag controller when the switch is not closed is shown in an embodiment of this application.

[0022] Figure 5 A partial structural diagram of the airbag controller when the switch is closed is shown in an embodiment of this application.

[0023] Figure 6 A schematic diagram of the detection circuit in an embodiment of this application is shown.

[0024] Figure 7The illustration shows a front view of the airbag controller mounted on the central tunnel sheet metal in an embodiment of this application.

[0025] Figure 8 An embodiment of this application is shown. Figure 7 An enlarged view of the airbag controller installed at point A of the central tunnel sheet metal.

[0026] Explanation of reference numerals in the attached figures: 1. Housing; 101. Receiving cavity; 2. Base plate; 201. Through hole; 202. Second mounting hole; 3. Circuit board; 301. Guide cavity; 302. Connecting hole; 31. Resistance detection device; 32. Rated resistor; 33. Switch; 331. Outer shell; 332. Conductive component; 3321. Conductive part; 3322. Limiting part; 4. Driving component; 41. First driving part; 42. Second driving part; 5. Elastic component; 6. Central channel sheet metal; 7. First fastener; a. First conductive end; b. Second conductive end; c. Third conductive end; d. Fourth conductive end; x. Axial direction. Detailed Implementation

[0027] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0028] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0030] like Figures 1 to 8As shown, this embodiment provides an airbag controller, including: a housing 1, a base plate 2, a circuit board 3, and a drive component 4. The housing 1 has a receiving cavity 101; the base plate 2 is connected to the housing 1 and covers the opening of the receiving cavity 101. The base plate 2 has a through hole 201 communicating with the receiving cavity 101 and is used to connect with the central tunnel sheet metal 6 of the vehicle; the circuit board 3 is located inside the receiving cavity 101 and connected to the housing 1. The circuit board 3 and the base plate 2 are spaced apart. The circuit board 3 has a detection circuit, which includes a resistance detection device 31, a rated resistor 32, and a switch 33 connected in series. The switch 33 is used to control the current flow between the resistance detection device 31 and the rated resistor 32; the drive component 4 passes through the through hole 201 and is spaced apart from the hole wall of the through hole 201. The drive component 4 protrudes from the side of the base plate 2 away from the housing 1 and is connected to the switch 33.

[0031] In this embodiment, since the detection circuit is located on the circuit board 3, the resistance detection device 31, the rated resistor 32 and the switch 33 are all located in the accommodating cavity 101 and are all connected to the circuit board 3.

[0032] In this embodiment, when the base plate 2 of the airbag controller is installed on the central channel sheet metal 6, the driving component 4 passes through the through hole 201 of the base plate 2 and protrudes from the side of the base plate 2 away from the housing 1. Therefore, the driving component 4 will contact the central channel sheet metal 6 and move into the accommodating cavity 101 under the squeezing action of the central channel sheet metal 6. At this time, if the airbag controller is reliably installed, the driving component 4 can drive the switch 33 to close, the detection circuit is in a connected state, the resistance detection device 31 detects that the resistance value of the detection circuit is the resistance value of the rated resistor 32, and the ignition function of the airbag controller can be used normally; if the airbag controller is not reliably installed, the driving component 4 fails to drive the switch 33 to close, the detection circuit is in a disconnected state, the resistance detection device 31 detects that the resistance value of the detection circuit is infinite, the ignition function of the airbag controller is prohibited from use, so as to effectively prevent the airbag from accidentally igniting.

[0033] It should be understood that once the ignition function of the airbag controller is disabled, the OEM's dedicated after-sales equipment is required to reactivate the airbag controller's ignition function.

[0034] In this embodiment, the resistance value of the rated resistor 32 is 2±0.2Ω. When the airbag controller is reliably installed, the resistance detection device 31 detects that the resistance value of the detection circuit is 1.5Ω-3.5Ω.

[0035] It should be understood that when the airbag controller is installed reliably, the resistance value detected by the resistance detection device 31 in the detection circuit is not necessarily the resistance value of the rated resistor 32, and deviations are allowed within the specified range.

[0036] In this embodiment, the airbag controller is connected to the instrument cluster controller via a CAN bus. When the airbag controller is installed unreliably, it sends an airbag fault signal on the CAN bus and transmits it to the instrument cluster controller. At this time, a malfunction indicator light will illuminate on the vehicle's instrument cluster to provide a clear warning to the user.

[0037] Combination Figure 4 and Figure 5 As shown, the switch 33 includes a housing 331 and a conductive element 332. The housing 331 is connected to the circuit board 3. The housing 331 is provided with a guide cavity 301 and a connecting hole 302. The connecting hole 302 communicates with the guide cavity 301. The conductive element 332 is located in the guide cavity 301 and is movably connected to the housing 331. The conductive element 332 is used to control the current flow between the resistance detection device 31 and the rated resistor 32. The driving element 4 passes through the connecting hole 302 and is spaced apart from the hole wall of the connecting hole 302. The driving element 4 is connected to the conductive element 332 in a driving manner.

[0038] In this embodiment, since the conductive element 332 is located within the guide cavity 301 and contacts the cavity wall of the guide cavity 301, the outer shell 331 can restrict the movement trajectory of the conductive element 332 to ensure that the conductive element 332 can move relative to the outer shell 331 along the axial direction x of the guide cavity 301. Furthermore, the driving element 4 passes through the through hole 201 and is connected to the conductive element 332 in a transmission manner, so as to drive the conductive element 332 to move relative to the outer shell 331 within the guide cavity 301.

[0039] In this embodiment, the detection circuit of the circuit board 3 is provided with a first conductive end a and a second conductive end b, both of which are located within the guide cavity 301. The conductive component 332 is provided with a third conductive end c and a fourth conductive end d. The third conductive end c and the first conductive end a are arranged opposite each other along the axial direction x of the guide cavity 301, and the fourth conductive end d and the second conductive end b are arranged opposite each other along the axial direction x of the guide cavity 301.

[0040] In this embodiment, when the first conductive terminal a is connected to the third conductive terminal c, and the second conductive terminal b is connected to the fourth conductive terminal d, the switch 33 is closed, the detection circuit is in a connected state, the resistance detection device 31 detects that the resistance value of the detection circuit is the resistance value of the rated resistor 32, and the ignition function of the airbag controller can be used normally. When the first conductive terminal a is not connected to the third conductive terminal c, and / or the second conductive terminal b is not connected to the fourth conductive terminal d, the switch 33 is not closed, the detection circuit is in a disconnected state, the resistance detection device 31 detects that the resistance value of the detection circuit is infinite, and the ignition function of the airbag controller is disabled.

[0041] It should be understood that when the base plate 2 of the airbag controller is installed on the central tunnel sheet metal 6, if the airbag controller is installed reliably, the first conductive terminal a is connected to the third conductive terminal c, and the second conductive terminal b is connected to the fourth conductive terminal d, that is, the switch 33 is closed; if the airbag controller is not installed reliably, the first conductive terminal a is not connected to the third conductive terminal c, and / or the second conductive terminal b is not connected to the fourth conductive terminal d, that is, the switch 33 is not closed.

[0042] In other embodiments, the conductive element 332 is located within the guide cavity 301 and is spaced apart from the cavity wall of the guide cavity 301. The first conductive end a is hinged to and connected to the third conductive end c. The conductive element 332 can rotate around the third conductive end c, and then the driving element 4 can drive the conductive element 332 to rotate until the fourth conductive end d is connected to the second conductive end b, so as to realize the connection of the detection circuit.

[0043] Combination Figure 4 and Figure 5 As shown, the minimum outer diameter of the conductive component 332 is greater than the inner diameter of the connecting hole 302.

[0044] In this embodiment, the conductive member 332 includes a conductive part 3321 and a limiting part 3322. The conductive part 3321 and the limiting part 3322 are insulatedly connected. The conductive part 3321 is used to control the current flow between the resistance detection device 31 and the rated resistor 32. The limiting part 3322 is connected to the driving member 4. The outer diameter of the conductive part 3321 is larger than the outer diameter of the limiting part 3322.

[0045] In this embodiment, the outer diameter of the limiting part 3322 is larger than the inner diameter of the connecting hole 302. The limiting part 3322 can restrict the conductive element 332 from coming out of the guide cavity 301 of the housing 331, thereby ensuring that the conductive element 332 is always located in the guide cavity 301 of the housing 331, so as to avoid affecting the closing of the switch 33.

[0046] It should be understood that when the airbag controller is not installed on the central tunnel sheet metal 6, the drive component 4 and the conductive component 332 will move away from the circuit board 3 due to gravity. Therefore, it is necessary to limit the minimum outer diameter of the limiting part 3322 to be greater than the inner diameter of the connecting hole 302.

[0047] In this embodiment, combined with Figure 4 and Figure 5 As shown, the through hole 201 and the connecting hole 302 are arranged correspondingly along the axial direction x of the guide cavity 301, so that the driving member 4 can move into the accommodating cavity 101 along the axial direction x of the guide cavity 301 under the squeezing action of the central channel sheet metal 6, thereby ensuring that the conductive member 332 can move relative to the outer shell 331 along the axial direction x of the guide cavity 301.

[0048] Combination Figure 4As shown, the airbag controller also includes an elastic element 5, which is located outside the guide cavity 301 and sleeved on the drive element 4. One end of the elastic element 5 is connected to the outer shell 331, and the other end of the elastic element 5 is connected to the drive element 4.

[0049] In this embodiment, when the airbag controller is not installed on the central tunnel sheet metal 6, the elastic element 5 is in a normal state. When the airbag controller is installed on the central tunnel sheet metal 6, the drive element 4 moves into the accommodating cavity 101 under the squeezing action of the central tunnel sheet metal 6, and the elastic element 5 is in a compressed state. During vehicle operation, if the airbag controller switches from reliable installation to unreliable installation, the drive element 4 moves out of the accommodating cavity 101 under the elastic force of the elastic element 5, and drives the conductive element 332 to move away from the circuit board 3, causing the detection circuit to switch from a connected state to a disconnected state. Consequently, the resistance detection device 31 detects that the resistance value of the detection circuit is infinite, and the ignition function of the airbag controller is disabled to prevent accidental ignition of the airbag.

[0050] Combination Figure 4 and Figure 5 As shown, the driving component 4 includes a first driving part 41 and a second driving part 42. The first driving part 41 is connected between the second driving part 42 and the conductive component 332. The first driving part 41 passes through the connecting hole 302, and the second driving part 42 passes through the through hole 201. The outer diameter of the first driving part 41 is smaller than the outer diameter of the second driving part 42. The elastic component 5 is sleeved on the first driving part 41 and is connected between the outer shell 331 and the second driving part 42.

[0051] In this embodiment, since the outer diameter of the first driving part 41 is smaller than the outer diameter of the second driving part 42, the radial area of ​​the second driving part 42 is larger than the radial area of ​​the first driving part 41. When the airbag controller is installed on the central channel sheet metal 6, the second driving part 42 contacts the central channel sheet metal 6, which helps to improve the stability of the contact between the driving component 4 and the central channel sheet metal 6, thereby ensuring the stability of the conductive component 332 connecting the detection circuit; at the same time, the larger contact area between the second driving part 42 and the central channel sheet metal 6 can avoid stress concentration.

[0052] Furthermore, when the elastic member 5 is in a compressed state, the elastic member 5 can elastically abut against the housing 331 and the second drive part 42, and the housing 331 and the second drive part 42 can prevent the elastic member 5 from coming out of the first drive part 41.

[0053] It should be understood that since the first driving part 41 passes through the connecting hole 302, the outer diameter of the outer shell 331 is larger than the outer diameter of the first driving part 41. Therefore, the outer diameter of the outer shell 331 and the outer diameter of the second driving part 42 are both larger than the outer diameter of the first driving part 41.

[0054] Combination Figure 1 , Figure 4 and Figure 7 As shown, the base plate 2 is provided with a first mounting hole and a second mounting hole 202, and the first mounting hole, the second mounting hole 202 and the through hole 201 are spaced apart from each other; the airbag controller also includes a first fastener 7 and a second fastener, the first fastener 7 passes through the first mounting hole and is connected to the housing 1; the second fastener passes through the second mounting hole 202 and is connected to the central tunnel sheet metal 6 of the vehicle.

[0055] For example, the first fastener 7 is a bolt, screw, etc.; the second fastener is a bolt, screw, etc.

[0056] In this embodiment, the first fastener 7 is a bolt. The housing 1 includes a main body and four connecting parts. The four connecting parts are all located within the accommodating cavity 101 and are spaced apart from the circuit board 3. The four connecting parts are all connected to the main body. The base plate 2 has four mutually spaced first mounting holes. The four bolts are inserted one-to-one through the four first mounting holes and are connected one-to-one with the four connecting parts to realize the connection between the base plate 2 and the housing 1.

[0057] In addition, the base plate 2 is bolted to the housing 1 to facilitate the disassembly and installation of the circuit board 3.

[0058] In this embodiment, the second fastener is a bolt. The base plate 2 is provided with three mutually spaced second mounting holes 202, and the three bolts are inserted one-to-one through the three second mounting holes 202 and connected to the central channel sheet metal 6 to realize the connection between the base plate 2 and the central channel sheet metal 6.

[0059] In addition, the base plate 2 is bolted to the central channel sheet metal 6 to facilitate the disassembly and installation of the airbag controller.

[0060] Combination Figure 1 As shown, the base plate 2 is provided with three second mounting holes 202, which are spaced apart and form the three vertices of a triangle.

[0061] In this embodiment, the base plate 2 is connected to the central channel sheet metal 6 by three bolts passing through the three second mounting holes 202 one by one, so that the airbag controller and the central channel sheet metal 6 form a triangular mounting structure. Compared with other shapes of mounting structures, the triangular mounting structure is more stable, which helps to improve the reliability of the airbag controller installed on the central channel sheet metal 6, so as to avoid the situation of accidental ignition of the airbag.

[0062] Combination Figure 4As shown, the distance between the outer peripheral side of the second driving part 42 and the wall of the through hole 201 is equal, and the range of the distance between the outer peripheral side of the second driving part 42 and the wall of the through hole 201 is 0.1mm-0.3mm.

[0063] For example, the distance between the outer periphery of the second drive unit 42 and the wall of the through hole 201 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, etc.

[0064] In this embodiment, the driving member 4 is a cylindrical push rod, meaning that both the first driving part 41 and the second driving part 42 are cylindrical push rods. The distance between the outer periphery of the second driving part 42 and the wall of the through hole 201 is equal, meaning that the center of the through hole 201 is located on the axis of the second driving part 42. The outer periphery of the second driving part 42 is spaced apart from the wall of the through hole 201 to prevent the second driving part 42 from contacting the wall of the through hole 201 when it moves within the through hole 201, thus ensuring smooth movement of the driving member 4 within the through hole 201.

[0065] Furthermore, the distance between the outer periphery of the second drive unit 42 and the wall of the through hole 201 is e, and the value of e ranges from 0.1mm to 0.3mm. This reduces the radial movement range of the second drive unit 42 within the through hole 201, thereby ensuring a stable connection between the drive member 4 and the switch 33.

[0066] In this embodiment, when the airbag controller is not installed on the central tunnel sheet metal 6, the protrusion height of the second drive unit 42 relative to the base plate 2 is 9.5mm. When the airbag controller is reliably installed on the central tunnel sheet metal 6, the protrusion height of the second drive unit 42 relative to the base plate 2 is 5mm. Therefore, the closing stroke of the airbag controller switch 33 is 4mm. If the closing stroke of the switch 33 is less than 4mm, the switch 33 cannot close, the detection circuit is in an open state, the resistance detection device 31 detects that the resistance value of the detection circuit is infinite, and the ignition function of the airbag controller is disabled.

[0067] It should be understood that the closing stroke of switch 33 can be selected according to the actual situation.

[0068] This embodiment provides a vehicle, including a central tunnel sheet metal 6 and the aforementioned airbag controller, wherein the airbag controller is connected to the central tunnel sheet metal 6.

[0069] For other aspects of the vehicle's structure, please refer to existing technology; details will not be elaborated here.

[0070] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application.

[0072] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0073] Although embodiments of this application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of the patent coverage of this application.

Claims

1. An airbag controller, characterized in that, include: The housing has a receiving cavity; A base plate, which is connected to the housing and covers the opening of the accommodating cavity, has a through hole communicating with the accommodating cavity, and is used for sheet metal connection with the central tunnel of the vehicle; A circuit board is located within the accommodating cavity and connected to the housing. The circuit board is spaced apart from the base plate. The circuit board is provided with a detection circuit, which includes a resistance detection device, a rated resistor, and a switch connected in series. The switch is used to control the current flow between the resistance detection device and the rated resistor. A driving component is provided, which passes through the through hole and is spaced apart from the hole wall. The driving component protrudes from the side of the base plate away from the housing. The driving component is connected to the switch in a driving manner.

2. The airbag controller according to claim 1, characterized in that, The switch includes a housing and a conductive component. The housing has a guide cavity and a connecting hole. The connecting hole communicates with the guide cavity. The conductive component is located in the guide cavity and is movably connected to the housing. The conductive component is used to control the current flow between the resistance detection device and the rated resistor. The driving component is inserted into the connecting hole and spaced apart from the hole wall. The driving component is connected to the conductive component in a transmission manner.

3. The airbag controller according to claim 2, characterized in that, The minimum outer diameter of the conductive element is greater than the inner diameter of the connecting hole.

4. The airbag controller according to claim 2, characterized in that, The through hole and the connecting hole are arranged in a corresponding manner along the axial direction of the guide cavity.

5. The airbag controller according to claim 2, characterized in that, The airbag controller also includes an elastic element located outside the guide cavity and sleeved on the drive element. One end of the elastic element is connected to the outer shell, and the other end of the elastic element is connected to the drive element.

6. The airbag controller according to claim 5, characterized in that, The driving component includes a first driving part and a second driving part. The first driving part is connected between the second driving part and the conductive component. The first driving part passes through the connecting hole, and the second driving part passes through the through hole. The outer diameter of the first driving part is smaller than the outer diameter of the second driving part. The elastic element is sleeved on the first driving part, and the elastic element is connected between the outer shell and the second driving part.

7. The airbag controller according to claim 1, characterized in that, The base plate is provided with a first mounting hole and a second mounting hole, and the first mounting hole, the second mounting hole and the through hole are arranged at intervals. The airbag controller further includes a first fastener and a second fastener. The first fastener passes through the first mounting hole and is connected to the housing. The second fastener passes through the second mounting hole and is connected to the central tunnel sheet metal of the vehicle.

8. The airbag controller according to claim 7, characterized in that, The base plate is provided with three second mounting holes, which are spaced apart and form the three vertices of a triangle.

9. The airbag controller according to claim 1, characterized in that, The distance between the outer periphery of the driving component and the wall of the through hole is equal, and the range of the distance between the outer periphery of the driving component and the wall of the through hole is 0.1mm-0.3mm.

10. A vehicle, characterized in that, It includes a central tunnel sheet metal and an airbag controller as described in any one of claims 1-9, wherein the airbag controller is connected to the central tunnel sheet metal.

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