Commercial vehicle air bag restraint system controller arrangement structure and method

Abstract

The invention discloses a commercial vehicle air bag restraint system controller arrangement structure and method. An air bag restraint system controller of an air bag restraint system is arranged. The safety air bag controller is arranged in a central channel of the vehicle body and is positioned in front of the gear shifting mechanism and behind the instrument desk; the middle line of the cab bottom plate coincides with a vehicle body central channel, the middles of a cab left longitudinal beam and a cab right longitudinal beam which are located on the two sides of the cab bottom plate are connected with a cross beam support, and a controller support is welded to the upper side of the middle of the cross beam support so that an air bag restraint system controller can be installed through the controller support. And the safety air bag controller is tightly attached to the bottom plate of the cab. Based on an existing commercial vehicle body structure, a proper installation position of the safety airbag controller is selected, and through the design of the controller support and the local reinforcement design of the vehicle body, the adjustment of the vehicle body and the cost are reduced as much as possible, so that the arrangement requirement and the resonance requirement of the safety airbag controller are met.

Description

Technical Field

[0001] The present invention relates to the technical field of commercial vehicles, and more specifically, to an arrangement structure and method for a safety airbag controller of a commercial vehicle. Background Art

[0002] An automotive safety airbag is a passive safety device designed to protect the safety of occupants and is generally less commonly used in domestic commercial vehicles. With the increasing emphasis on automotive safety performance by consumers, the research and application of commercial vehicle safety airbags will be one of the important directions for the development of commercial vehicle safety technology. At the same time, with the progress of technology and the improvement of standards, the safety performance of commercial vehicles will be further enhanced. In order to ensure that the safety airbag controller can correctly detect the collision signal and make an evaluation, it must be installed at a position on the vehicle body where the deceleration signal can be fully received. The central tunnel of the vehicle is an ideal position for installing the safety airbag controller, usually installed parallel to the driver, and the installation position must be symmetric with respect to the longitudinal axis of the vehicle. There should be no resonance within the range of 0 - 500 Hz at the installation position, and within the range of 500 - 2000 Hz, resonance with a resonance characteristic curve lower than the sensor filtering characteristic curve is acceptable. This is not difficult to achieve for passenger cars because they are load-bearing bodies with good overall strength and stiffness of the vehicle body, and full consideration has been given at the initial design stage.

[0003] However, for existing structural commercial vehicles, because they are non-load-bearing bodies with generally thin body steel plates, most of them do not consider the arrangement of safety airbags at the initial design stage, and it is difficult to meet their arrangement requirements. The existing safety airbag controllers of commercial vehicles are arranged on the left or right side of the vehicle body, not on the central tunnel, or are not arranged closely to the vehicle body floor, and cannot fully receive the deceleration signal. Or it is necessary to make major changes to the vehicle body, resulting in a high cost. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide an arrangement structure and method for a safety airbag controller of a commercial vehicle. Based on the existing commercial vehicle body structure, a suitable installation position for the safety airbag controller is selected, and through the design of the controller bracket and the local strengthening design of the vehicle body, the adjustment of the vehicle body is minimized and the cost is reduced to meet the arrangement requirements and resonance requirements of the safety airbag controller.

[0005] The present invention solves the above problems through the following technical solutions:

[0006] An arrangement structure for a safety airbag controller of a commercial vehicle is used to arrange the safety airbag controller of the safety airbag system; the safety airbag controller is arranged in the central tunnel of the vehicle body, and is located in front of the shifting mechanism and behind the instrument panel;

[0007] The center line of the cab floor coincides with the central channel of the vehicle body. In the middle of the left cab longitudinal beam and the right cab longitudinal beam on both sides of the cab floor, there is a crossbeam bracket. The upper side of the middle part of the crossbeam bracket is flush with the upper side of the cab floor. A controller bracket is welded on the upper side of the middle part of the crossbeam bracket to install the airbag controller through the controller bracket, so that the installation of the airbag controller is close to the cab floor.

[0008] As a further improvement of the present invention, three mounting holes for installing the airbag controller are formed on the controller bracket, and the mounting holes are made by tapping threads.

[0009] As a further improvement of the present invention, the inclination of the lower end face of the controller bracket is consistent with the central channel of the vehicle body, and the upper end face of the controller bracket is horizontal.

[0010] As a further improvement of the present invention, the upper end faces of several crossbeam brackets form an inclined plane consistent with the central channel of the vehicle body.

[0011] As a further improvement of the present invention, the controller bracket is fixed to the cab floor by welding to ensure that the installation of the airbag controller is close to the cab floor.

[0012] As a further improvement of the present invention, the two crossbeam brackets and the left cab longitudinal beam and the right cab longitudinal beam form a closed rectangular frame, and the closed rectangular frame is located directly below the airbag controller.

[0013] As a further improvement of the present invention, the airbag system includes: a driver's airbag, a passenger's airbag and an airbag controller. The driver's airbag is arranged in the steering wheel, and the passenger's airbag is arranged in the instrument panel in front of the passenger seat to control the driver's airbag and the passenger's airbag through the airbag controller.

[0014] At the same time, the present invention also solves the above problems through the following technical solutions:

[0015] A method for arranging an airbag controller of a commercial vehicle, including:

[0016] Arranging the driver's airbag in the steering wheel;

[0017] Arranging the passenger's airbag in the instrument panel in front of the passenger seat;

[0018] Arranging the airbag controller for controlling the driver's airbag and the passenger's airbag in the central channel of the vehicle body, and in front of the shift mechanism and behind the instrument panel.

[0019] As a further improvement of the present invention, the method further includes:

[0020] Use a controller bracket to install the airbag controller. During the installation process, ensure that the controller bracket is close to the floor of the cab and the crossbeam bracket is located directly below the airbag controller to strengthen the airbag controller installation area and enable the airbag controller to fully receive the collision deceleration signal.

[0021] As a further improvement of the present invention, the controller bracket adopts an integral inclined surface design, the lower end surface of the controller bracket is in contact with the upper end surface of the cab floor, and the upper end surface of the controller bracket is horizontal.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] (1) The present invention is based on the existing commercial vehicle body structure and selects a suitable installation position for the airbag controller to meet the requirement of being located on the center axis of the vehicle body. The installation position is forward and can quickly receive collision reduction and acceleration signals.

[0024] (2) The present invention meets the layout and resonance requirements of the airbag controller by designing the mounting bracket and partially reinforcing the vehicle body, minimizing the adjustment of the vehicle body and reducing costs. The local area where the airbag controller is installed is significantly strengthened to meet the resonance frequency requirements. At the same time, by performing local reinforcement and local structural adjustment instead of adjusting the vehicle body as a whole, development costs can be saved and the development cycle can be shortened. The airbag controller is installed close to the central channel of the vehicle body, and the airbag controller installation area can be strengthened to fully receive the collision deceleration signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the installation position of the airbag system of the present invention;

[0026] Figure 2 This is a schematic diagram of the layout structure of a commercial vehicle airbag controller according to the present invention;

[0027] Figure 3 A side schematic diagram of the layout structure of a commercial vehicle airbag controller according to the present invention;

[0028] Figure 4 It is a schematic diagram of the installation of one side of the crossbeam support of the present invention;

[0029] Figure 5 It is a schematic diagram of the installation of the other side of the crossbeam support of the present invention;

[0030] Figure 6 It is a schematic diagram of the installation of another beam support of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the controller bracket of the present invention;

[0032] Figure 8 This is another side schematic diagram of the deployment structure of the airbag controller for a commercial vehicle according to the present invention.

[0033] Reference numerals: 1 - driver's airbag; 2 - co-driver's airbag; 3 - airbag controller; 4 - mounting bolt; 5 - controller bracket; 6 - crossbeam bracket; 7 - cab floor; 8 - left cab longitudinal beam; 9 - right cab longitudinal beam. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1:

[0036] Refer to the attached Figure 1-8 As shown, a deployment structure of an airbag controller for a commercial vehicle is used to deploy the airbag controller of the airbag system; wherein,

[0037] The airbag system consists of a driver's airbag 1, a co-driver's airbag 2, and an airbag controller 3 to control the driver's airbag 1 and the co-driver's airbag 2 through the airbag controller 3. The driver's airbag 1 is arranged inside the steering wheel to form an airbag steering wheel. The co-driver's airbag 2 is arranged in the instrument panel in front of the co-driver's seat. The airbag controller 3 is arranged in the central tunnel of the vehicle body, in front of the shift mechanism and behind the instrument panel. This position meets the requirement of being at the central axis position of the vehicle body and is installed in a forward position, enabling it to quickly receive collision deceleration and acceleration signals.

[0038] Specifically, refer to the attached Figure 2 As shown, the midline of the cab floor 7 coincides with the central tunnel of the vehicle body. Crossbeam brackets 6 are connected to the middle parts of the left cab longitudinal beam 8 and the right cab longitudinal beam 9 on both sides of the cab floor 7, and the crossbeam brackets 6 are located below the cab floor 7. The upper side of the middle part of the crossbeam bracket is flush with the upper side of the cab floor. The controller bracket 5 is welded to the upper side of the middle part of the crossbeam bracket 6 to install the airbag controller 3 through the controller bracket 5.

[0039] Preferably, the three mounting holes on the controller bracket 5 for mounting the airbag controller 3 are tapped to cooperate with the mounting bolts 4 to ensure the reliability of the connection between the airbag controller 3 and the controller bracket 5. The controller bracket 5 is fixed to the cab floor 7 to ensure the reliability of the connection between the controller bracket and the vehicle body; the controller bracket is made of metal material, with a solid and thickened design, and is fixed to the cab floor 7 and the crossbeam bracket 6 by welding, and it is ensured that the installation of the airbag controller is close to the cab floor 7, so as to strengthen the installation area of the airbag controller and be able to fully receive the collision deceleration signal.

[0040] The inclination of the lower end face of the controller bracket is consistent with the vehicle body center tunnel, and the upper end face of the controller bracket is horizontal; the upper end faces of several crossbeam brackets form an inclined plane consistent with the vehicle body center tunnel. It is also possible to make the upper end face of the cab floor 7, that is, the vehicle body center tunnel, an inclined plane, and the lower fitting surface of the controller bracket fit with the upper end face of the cab floor 7 and is designed as an inclined plane, and the slope of the inclined plane is consistent with the vehicle body center tunnel to ensure that the angular tolerance of the airbag controller in the vertical direction meets the requirements, and the upper fitting surface of the controller bracket is horizontal.

[0041] Furthermore, in this embodiment, two crossbeam brackets 6 are used for local strengthening on the back of the cab floor 7 below the airbag controller. The two crossbeam brackets are connected to the cab floor 7, and the end faces are connected to the cab left longitudinal beam 8 and the cab right longitudinal beam 9, and are fixed to the cab floor 7 by welding. The two crossbeam brackets 6 and the cab left longitudinal beam 8 and the cab right longitudinal beam 9 form a closed rectangular frame and are located directly below the airbag controller, so that the local area of the installation position of the airbag controller is significantly strengthened to meet the resonance frequency requirements; referring to the appendix Figure 8 The crossbeam brackets can also be set as an integral structure connected to each other to form a closed rectangular frame with the cab left longitudinal beam 8 and the cab right longitudinal beam 9. At the same time, due to local strengthening and local structure adjustment, rather than overall adjustment of the vehicle body, the development cost can be saved and the development cycle can be shortened. The crossbeam brackets include but are not limited to the illustrated structure, and should include the structures arranged by this method. And the crossbeam brackets are located directly below the airbag controller to ensure the best strengthening effect.

[0042] Embodiment 2:

[0043] In this embodiment, a method for arranging a commercial vehicle airbag controller can be realized by using the structure for arranging a commercial vehicle airbag controller described in Embodiment 1. The specific steps include:

[0044] Arrange the driver's airbag in the steering wheel;

[0045] Arrange the co-driver's airbag in the instrument panel in front of the co-driver's seat;

[0046] The airbag controller that controls the driver's airbag and the front passenger's airbag is arranged in the center tunnel of the vehicle body, in front of the shift mechanism and behind the instrument panel, so as to quickly receive the impact deceleration and acceleration signals.

[0047] Preferably, the method for arranging the airbag controller further includes:

[0048] The airbag controller is installed using a controller bracket 5, and during the installation process, it is necessary to ensure that the controller bracket 5 is closely attached to the driver's cab floor 7, and the crossbeam bracket 6 is located directly below the airbag controller to strengthen the installation area of the airbag controller, so as to ensure the connection reliability and enable the airbag controller to fully receive the impact deceleration and acceleration signals;

[0049] Preferably, the controller bracket 5 adopts an overall inclined surface design. The inclination of the lower end surface of the controller bracket 5 is consistent with that of the center tunnel of the vehicle body, i.e., it fits the upper end surface of the driver's cab floor 7, and the upper end surface of the controller bracket 5 is horizontal, so as to compensate for the perpendicularity problem of the airbag controller caused by the inclined center tunnel of the vehicle body and make it meet the requirements.

[0050] Although the present invention has been described herein with reference to its illustrative embodiments, the above embodiments are only the preferred embodiments of the present invention. The embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, and these modifications and embodiments will fall within the scope of the principles and spirit disclosed in this application.

Claims

1. An arrangement structure of a commercial vehicle airbag controller, characterized in that, For arranging the airbag controller of the airbag system; the airbag controller is arranged in the vehicle body center tunnel, in front of the shift mechanism and behind the instrument panel; The center line of the cab floor coincides with the vehicle body center tunnel. Cross beam brackets are connected to the middle parts of the left cab longitudinal beam and the right cab longitudinal beam on both sides of the cab floor. The cross beam brackets are located below the cab floor. The upper side of the middle part of the cross beam brackets is welded with a controller bracket to install the airbag controller through the controller bracket, so that the installation of the airbag controller is close to the cab floor.

2. The layout structure of a commercial vehicle airbag controller according to claim 1, characterized in that, Three mounting holes for installing the airbag controller are formed on the controller bracket, and the mounting holes are made by tapping.

3. The layout structure of a commercial vehicle airbag controller according to claim 1, characterized in that, The inclination of the lower end face of the controller bracket for installation is consistent with that of the vehicle body center tunnel, and the upper end face of the controller bracket is horizontal.

4. The layout structure of a commercial vehicle airbag controller according to claim 3, characterized in that, The upper end faces of several cross beam brackets form inclined planes consistent with the vehicle body center tunnel to be flush with the upper side of the cab floor.

5. The arrangement structure of a commercial vehicle airbag controller according to claim 4, characterized in that The controller bracket is fixed to the cab floor by welding to ensure that the installation of the airbag controller is close to the cab floor.

6. The layout structure of a commercial vehicle airbag controller according to claim 1, characterized in that, The two cross beam brackets and the left cab longitudinal beam and the right cab longitudinal beam form a closed rectangular frame, and the closed rectangular frame is located directly below the airbag controller.

7. A layout structure of a commercial vehicle airbag controller according to any one of claims 1-6, characterized in that, The airbag system includes: a driver's airbag, a co-driver's airbag and an airbag controller. The driver's airbag is arranged in the steering wheel, and the co-driver's airbag is arranged in the instrument panel in front of the co-driver's seat, so as to control the driver's airbag and the co-driver's airbag through the airbag controller.

8. A method for arranging a commercial vehicle airbag controller, characterized in that, Including: Arranging the driver's airbag in the steering wheel; Arranging the co-driver's airbag in the instrument panel in front of the co-driver's seat; Arranging the airbag controller for controlling the driver's airbag and the co-driver's airbag in the vehicle body center tunnel, in front of the shift mechanism and behind the instrument panel.

9. The method for arranging a commercial vehicle airbag controller according to claim 8, wherein, Also including: Using a controller bracket to install the airbag controller. During the installation process, it is necessary to ensure that the controller bracket is close to the cab floor, and the cross beam bracket is located directly below the airbag controller to strengthen the installation area of the airbag controller and enable the airbag controller to fully receive the collision deceleration and acceleration signals.

10. The method for arranging a commercial vehicle airbag controller according to claim 9, wherein The controller bracket adopts an overall inclined plane design. The inclination of the lower end face of the controller bracket for installation is consistent with that of the vehicle body center tunnel, and the upper end face of the controller bracket is horizontal.

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