Portable detection demonstration tool for automobile safety air bag control system
By designing a portable detection demonstration tool, using peripheral acceleration sensors to work in concert with the airbag controller, the problem of traditional inaccurate detection is solved, convenient and efficient multifunctional testing is achieved, and the detection efficiency and safety of the automotive airbag control system is improved.
Patent Information
- Application Number
- CN202421669601.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the detection and testing of traditional automotive airbag controllers, relying on built-in sensors to sense collision acceleration inadequate and accurate, and the data recording function test of the EDR system in the event of power outage requires large equipment and cannot be carried out portably.
A portable detection demonstration tool is designed, including a fixed plate, an acceleration sensor and a rocker switch, which can simulate different collision conditions and work in concert with the airbag controller through the peripheral acceleration sensor to achieve portable detection and multifunctional testing.
It improves the portability and accuracy of detection, reduces detection costs, enhances the adjustability and safety of the system, and is suitable for simulation of different models and collision strengths, ensuring the reliability and safety of the airbag control system.
Smart Images
Figure CN223065799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automotive airbag control systems, and particularly to a portable detection and demonstration tooling for an automotive airbag control system. Background Technique
[0002] An airbag control unit (ACU) of an automobile is an electronic control module that integrates an acceleration sensor chip for collecting vehicle acceleration signals. Its main function is to sample and analyze the driving state of the vehicle in real time. When a vehicle collision occurs, it can detect the severity of the collision in a timely manner, and perform processing and algorithm analysis to determine whether to deploy the airbag.
[0003] With the continuous increase in the size of modern automobiles and the complexity of their designs, relying solely on the sensor chip built into the airbag controller to sense the changes in collision accelerations from all directions has become insufficient and inaccurate. Therefore, introducing peripheral acceleration sensors as an auxiliary means can significantly improve the accuracy and reliability of collision detection.
[0004] Peripheral acceleration sensors can be installed at various key parts of the vehicle, such as the front and rear bumper beams, B-pillars or door sills, C-pillars, etc., to more comprehensively monitor the changes in collision accelerations from different directions. These sensors can detect and transmit data in real time to the airbag control unit, providing a more accurate trigger signal for the timely inflation of the airbag.
[0005] In addition, peripheral acceleration sensors can also work in cooperation with the sensor chip built into the airbag controller to achieve a higher level of collision detection and prediction. By comprehensively analyzing the data from different sensors, the airbag control unit can more accurately judge the severity and direction of the collision, thereby more precisely controlling the inflation process and protection effect of the airbag.
[0006] Regarding the EDR (Event Data Recorder), it is integrated inside the vehicle airbag control module and is used to record dynamic time-series data before, during, and after a collision. In terms of power-off storage, the EDR system has the following functions:
[0007] Trigger threshold requirement: When the vehicle reaches the specified trigger threshold, the EDR controller should trigger the recording of data.
[0008] Power-off storage requirement: During a collision event, if the in-vehicle power supply circuit cannot supply power normally, the EDR system itself should have the power supply ability (a large-capacity electrolytic capacitor is built into our controller for energy storage). This power supply ability should meet the requirement that in the case of a collision occurring in a single direction, when all relevant ignition circuits are powered off, the EDR system should be able to continue recording data within (250 ± 10) milliseconds.
[0009] Therefore, the power-off storage EDR function of the vehicle airbag controller mainly ensures that in the event of a vehicle collision and the failure of the in-vehicle power supply system, the EDR system can still continue to record important collision data, providing key evidence for accident analysis and liability determination. This function is of great significance for improving vehicle safety and protecting the safety of occupants.
[0010] Traditionally, the tests on EDR and the calibrated algorithms are all carried out using large push rod devices, which are powered by 380V, driven by linear motors, and need to be placed in a fixed site. Such test conditions are not conducive to the rapid testing of the work results of airbag controller algorithms and software engineers. The birth of this fixed plate can solve the simulation tests with low requirements for collision scenario conditions, and can also demonstrate the working environment of airbag initiation to customers. Utility Model Content
[0011] The purpose of this utility model is to provide a portable detection and demonstration tooling for a vehicle airbag control system to solve the problems raised in the above background technology.
[0012] To achieve the above purpose, the utility model provides the following technical solution: A portable detection and demonstration tooling for a vehicle airbag control system, including: a fixed plate, which is a simple vehicle platform. One side of the fixed plate is installed with an airbag controller through airbag controller fixing bolts. On both sides of the bottom end of the other side of the fixed plate, a left front acceleration sensor and a right front acceleration sensor are respectively installed. On both sides of the top end of the fixed plate, a left B-pillar acceleration sensor and a right B-pillar acceleration sensor are respectively installed. Above the left B-pillar acceleration sensor and the right B-pillar acceleration sensor, a left A-pillar acceleration sensor and a right C-pillar acceleration sensor are respectively installed to facilitate simulating the peripheral signal environment. The left front acceleration sensor, the right front acceleration sensor, the left B-pillar acceleration sensor, the right B-pillar acceleration sensor, the left A-pillar acceleration sensor, and the right C-pillar acceleration sensor are detachably locked on the fixed plate through the cooperation of acceleration sensor fixing nuts and acceleration sensor bolts, and are electrically connected to the airbag controller through connecting wires.
[0013] Preferably, a frontal collision rocker switch is installed on the other side of the fixed plate near the center position through a rocker switch fixing screw. A 3-position 8-pin double-pole four-throw toggle switch is installed on the side of the frontal collision rocker switch. A 3-position common cathode red-blue dual-color LED is installed at the bottom end of the 3-position 8-pin double-pole four-throw toggle switch. The 3-position common cathode red-blue dual-color LED is electrically connected to the airbag controller through a connecting wire. A counterweight gasket is installed on the other side of the frontal collision rocker switch.
[0014] Preferably, a side collision rocker switch is installed at the bottom end of the frontal collision rocker switch through a rocker switch fixing screw. A 2-position 6-pin double-pole double-throw toggle switch is installed on the side of the side collision rocker switch. A 2-position common cathode red-blue dual-color LED is installed on the side of the 2-position 6-pin double-pole double-throw toggle switch. The 2-position common cathode red-blue dual-color LED is electrically connected to the airbag controller through a connecting wire.
[0015] Preferably, the frontal collision rocker switch and the side collision rocker switch are turned on or off by applying an external force to the rocker handle to displace it and connect the internal contacts, and the displacement force required for the rocker handle can be changed by adding or reducing counterweight gaskets.
[0016] Preferably, when the 3-position 8-pin double-pole four-pole toggle switch is turned to the position where pins 2&1 and 6&5 are conducting, it enters the frontal collision power-off mode. Then, when the frontal collision rocker switch is turned to the position where pins b / c are conducting, the blue LED bead in the 3-position common cathode red-blue dual-color LED lights up, indicating that it has entered the frontal collision power-off standby state.
[0017] Preferably, when the 3-position 8-pin double-pole four-pole toggle switch is turned to the position where pins 2&4 and 6&8 are conducting, it enters the side collision power-off mode. At this time, the frontal collision rocker switch will fail. Subsequently, the 2-position 6-pin double-pole double-throw toggle switch is turned to the position where pins 2&3 and 5&6 are conducting. When the side collision rocker switch is turned to the position where pins b&c are conducting, the red LED bead in the 2-position common cathode red-blue dual-color LED lights up, indicating that it has entered the right side collision power-off standby state.
[0018] Preferably, when the 3-position 8-pin double-pole four-pole toggle switch is turned to the position where pins 2&4 and 6&8 are conducting, it enters the side collision power-off mode. At this time, the frontal collision rocker switch will fail. Subsequently, the 2-position 6-pin double-pole double-throw toggle switch is turned to the position where pins 2&1 and 5&4 are conducting. When the side collision rocker switch is turned to the position where pins b&a are conducting, the blue LED bead in the 2-position common cathode red-blue dual-color LED lights up, indicating that it has entered the left side collision power-off standby state.
[0019] Preferably, when testing the acceleration enable in each direction without testing the EDR, the 3-position 8-pin double-pole four-pole toggle switch is turned to the position where pins 2&3 and 6&7 are conducting, and the red LED bead in the 3-position common cathode red-blue dual-color LED lights up. At this time, all displacement operations of the frontal collision rocker switch, the 2-position 6-pin double-pole double-throw toggle switch, and the side collision rocker switch handle will fail, and the red LED bead in the 3-position common cathode red-blue dual-color LED will not go out.
[0020] A portable detection and demonstration tooling for an automotive airbag control system proposed by the present utility model has the beneficial effects that:
[0021] 1. Portable Detection and Demonstration: The portability of this tooling enables detection and demonstration to be carried out at different locations, facilitating the understanding and evaluation of automotive airbag control systems by R & D personnel, engineers and relevant personnel; By simulating acceleration enabling operations under different working conditions, it intuitively demonstrates the working principle and performance of the system, helping to improve the understanding and awareness of the system.
[0022] 2. Improve Detection Efficiency and Accuracy: The simplicity of operation of the tooling makes the detection process faster, reducing cumbersome operation steps and time; At the same time, it can quickly and accurately detect various functions of the airbag control system, ensuring the reliability and stability of the system; This helps to improve detection efficiency, reduce detection costs, and reduce potential safety hazards caused by inaccurate detection.
[0023] 3. Adjustability: By adding or removing weight shims, the displacement force required for the rocker handle can be changed; This enables the tooling to adapt to different test requirements, such as simulating different vehicle models or different collision intensities; The adjustability increases the versatility and flexibility of the tooling, enabling it to better meet the requirements of different test scenarios.
[0024] 4. Versatility: In addition to performing frontal and side collision power-off tests, the tooling also has other functions; When not testing the EDR collision power-off storage function, various shift operations of the frontal collision rocker switch, 2-position 6-pin double-pole double-throw toggle switch and side collision rocker switch handle can be made ineffective; This versatility meets the requirements of different test scenarios and improves the practicality and applicability of the tooling.
[0025] 5. Safety Assurance: Accurately simulating the acceleration enabling operation under collision conditions is crucial for the R & D and testing of automotive airbag control systems; This tooling can provide reliable simulation to ensure the normal operation of the system in actual collision situations; This provides strong assurance for the safety of automotive airbag control systems and helps to reduce the casualty risk during accidents.
[0026] 6. Easy to Promote and Apply: The tooling has a simple structure, low cost, and is easy to manufacture and maintain; This makes it easier to be promoted and applied in the automotive industry, and it is of great significance both in the R & D stage and in quality inspection during the production process; The broad application prospect helps to improve the quality and reliability of automotive airbag control systems and further ensure the safety of passengers.
[0027] In summary, the utility model can achieve portable detection and demonstration, improve detection efficiency and accuracy, strong adjustability, versatility, high safety, and easy to promote and apply; These beneficial effects make this tooling have important value and application prospects in the R & D, testing and quality control of automotive airbag control systems. Description of the Drawings
[0028] Figure 1 is the structural schematic diagram of the present utility model;
[0029] Figure 2 is the rear - side structural schematic diagram of the present utility model;
[0030] Figure 3 is the three - dimensional structural schematic diagram of the present utility model;
[0031] Figure 4 is of the present utility model Figure 3 the partial structural schematic diagram;
[0032] Figure 5 is the corresponding relationship diagram between the fixed - plate direction coordinates of the present utility model and the vehicle;
[0033] Figure 6 is the schematic diagram of the principle of the present utility model;
[0034] Figure 7 is the working - state diagram of the 3 - speed 8 - pin double - knife four - pole toggle switch of the present utility model;
[0035] Figure 8 is the working - state diagram of the frontal - collision rocker switch of the present utility model;
[0036] Figure 9 is the working - state diagram of the 6 - pin double - knife double - throw toggle switch of the present utility model;
[0037] Figure 10 is the schematic diagram of the collision structure of the present utility model Figure One ;
[0038] Figure 11 is the schematic diagram of the collision structure of the present utility model Figure Two ;
[0039] Figure 12 is the schematic diagram of the collision structure of the present utility model Figure Three ;
[0040] Figure 13 is the schematic diagram of the collision structure of the present utility model Figure Four .
[0041] In the figure: 1. 8-pin double-pole four-position toggle switch for 1st and 3rd gears; 2. direct impact rocker switch; 3. common cathode red and blue dual-color LED; 4. counterweight gasket; 5. side impact rocker switch; 6. 6-pin double-pole double-throw toggle switch for 2nd gear; 7. rocker switch fixing screw; 8. acceleration sensor fixing nut; 9. common cathode red and blue dual-color LED for 2nd gear; 10. fixing plate; 11. airbag controller; 12. airbag controller fixing bolt; 13. acceleration sensor bolt; 14. connecting wire; 15. left A-pillar acceleration sensor; 16. left B-pillar acceleration sensor; 17. right C-pillar acceleration sensor; 18. right B-pillar acceleration sensor; 19. left front acceleration sensor; 20. right front acceleration sensor. Detailed implementation mode
[0042] 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.
[0043] Please refer to Figure 1-13 , the present invention provides a technical solution: a portable detection and demonstration tooling for an automotive airbag control system, including: a fixing plate 10, the fixing plate 10 is a simple automotive platform, one side of the fixing plate 10 is installed with an airbag controller 11 through an airbag controller fixing bolt 12, both sides of the bottom end of the other side of the fixing plate 10 are respectively installed with a left front acceleration sensor 19 and a right front acceleration sensor 20, both sides of the top end of the fixing plate 10 are respectively installed with a left B-pillar acceleration sensor 16 and a right B-pillar acceleration sensor 18, and a left A-pillar acceleration sensor 15 and a right C-pillar acceleration sensor 17 are respectively installed above the left B-pillar acceleration sensor 16 and the right B-pillar acceleration sensor 18 to facilitate simulating the peripheral signal environment. The left front acceleration sensor 19, the right front acceleration sensor 20, the left B-pillar acceleration sensor 16, the right B-pillar acceleration sensor 18, the left A-pillar acceleration sensor 15 and the right C-pillar acceleration sensor 17 are detachably locked on the fixing plate 10 through the cooperation of an acceleration sensor fixing nut 8 and an acceleration sensor bolt 13, and are electrically connected to the airbag controller 11 through a connecting wire 14.
[0044] A positive impact rocker switch 2 is installed near the center position on the other side of the fixing plate 10 through a rocker switch fixing screw 7, a 3-speed 8-pin double-pole four-pole toggle switch 1 is installed on the side of the positive impact rocker switch 2, a 3-speed common cathode red and blue two-color LED 3 is installed at the bottom end of the 3-speed 8-pin double-pole four-pole toggle switch 1, and the 3-speed common cathode red and blue two-color LED 3 is electrically connected to the airbag controller 11 through a connecting wire 14, a counterweight gasket 4 is installed on the other side of the positive impact rocker switch 2, a side impact rocker switch 5 is installed at the bottom end of the positive impact rocker switch 2 through a rocker switch fixing screw 7, a 2-speed 6-pin double-pole double-throw toggle switch 6 is installed on the side of the side impact rocker switch 5, a 2-speed common cathode red and blue two-color LED 9 is installed on the side of the 2-speed 6-pin double-pole double-throw toggle switch 6, and the 2-speed common cathode red and blue two-color LED 9 is electrically connected to the airbag controller 11 through a connecting wire 14.
[0045] The front impact rocker switch 2 and the side impact rocker switch 5 are turned on or off by applying an external force to the rocker handle to displace it and connect the internal contacts. The external force can be either the muscle force of the finger or a larger inertial force. Because the human arm strength is limited, the displacement force required by the rocker handle can be changed by adding or removing the counterweight gasket 4.
[0046] When the 3-speed 8-pin double-pole four-pole toggle switch 1 (S1 in the application schematic diagram) is turned to the 2&1, 6&5 pin conduction position, the positive impact power-off mode is entered. Then, after the positive impact rocker switch 2 (S2 in the application schematic diagram) is turned to the b / c pin conduction position, the blue lamp bead in the 3-speed common cathode red and blue two-color LED 3 (H1 in the application schematic diagram) lights up, indicating that the positive impact power-off standby state has been entered.
[0047] like Figure 10 As shown, after the fixing plate 10 is hit against the ground in the direction shown in the figure, the rocker handle of the positive impact rocker switch (2) (S2 in the application schematic diagram) slides to the b / a foot conduction position due to inertia, and the blue lamp bead in the 3rd gear common cathode red and blue bicolor LED 3 (H1 in the application schematic diagram) goes out, indicating that the positive impact power-off and acceleration enabling operation of the positive impact working condition have been completed.
[0048] The 3-speed 8-pin double-pole four-pole toggle switch 1 (S1 in the application schematic diagram) is turned to the 2&4, 6&8 pin conduction position to enter the side impact power-off mode, and the positive impact rocker switch 2 (S2 in the application schematic diagram) will fail at this time; then the 2-speed 6-pin double-pole double-throw toggle switch 6 (S3 in the application schematic diagram) is turned to the 2&3, 5&6 pin conduction position; after the side impact rocker switch 5 is turned to the b&c pin conduction position, the red lamp bead in the 2-speed common cathode red and blue two-color LED 9 (H2 in the application schematic diagram) lights up, indicating that the right side impact power-off standby state has been entered.
[0049] like Figure 11As shown, after hitting the fixed plate 10 against the ground in the Figure 11 direction, the rocker handle of the side collision rocker switch 5 (S4 in the application schematic diagram) slides to the position where the b&a pins are conducting due to inertia. Along with the red LED beads in the 2-position common cathode red-blue dual-color LED 9 (H2 in the application schematic diagram) going out, it indicates that the right collision power-off and the acceleration enabling operation for the right collision condition have been completed.
[0050] Turn the 3-position 8-pin double-pole four-throw toggle switch 1 (S1 in the application schematic diagram) to the position where the 2&4, 6&8 pins are conducting, then it enters the side collision power-off mode. At this time, the front collision rocker switch 2 (S2 in the application schematic diagram) will fail. Subsequently, turn the 2-position 6-pin double-pole double-throw toggle switch 6 (S3 in the application schematic diagram) to the position where the 2&1, 5&4 pins are conducting. After the side collision rocker switch 5 (S4 in the application schematic diagram) is turned to the position where the b&a pins are conducting, the blue LED beads in the 2-position common cathode red-blue dual-color LED 9 (H2 in the application schematic diagram) light up, indicating that it has entered the standby state for the left side collision power-off.
[0051] As Figure 11 shown, after hitting the fixed plate 10 against the ground in the Figure 11 direction, the rocker handle of the side collision rocker switch 5 (S4 in the application schematic diagram) slides to the position where the b&c pins are conducting due to inertia. Along with the blue LED beads in the 2-position common cathode red-blue dual-color LED 9 (H2 in the application schematic diagram) going out, it indicates that the left collision power-off and the acceleration enabling operation for the left collision condition have been completed.
[0052] As Figure 13 shown, when testing the acceleration enabling in each direction without testing the EDR (local regulations in some overseas regions do not mandatorily require the airbag controller to have the EDR collision power-off storage function), then turn the 3-position 8-pin double-pole four-throw toggle switch 1 (S1 in the application schematic diagram) to the position where the 2&3, 6&7 pins are conducting, and the red LED beads of the 3-position common cathode red-blue dual-color LED 3 (H1 in the application schematic diagram) light up. At this time, all kinds of shifting operations of the handles of the front collision rocker switch 2 (S2 in the application schematic diagram), the 2-position 6-pin double-pole double-throw toggle switch 6 (S3 in the application schematic diagram), and the side collision rocker switch 5 (S4 in the application schematic diagram) will fail, and the red LED beads of the 3-position common cathode red-blue dual-color LED 3 (H1 in the application schematic diagram) will not go out.
[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A portable detection and demonstration tooling for an automotive airbag control system, characterized in that include: A fixing plate (10), the fixing plate (10) is a simple automobile platform, a safety airbag controller (11) is installed on one side of the fixing plate (10) through a safety airbag controller fixing bolt (12), a left front acceleration sensor (19) and a right front acceleration sensor (20) are installed on both sides of the bottom of the other side of the fixing plate (10), a left B-pillar acceleration sensor (16) and a right B-pillar acceleration sensor (18) are installed on both sides of the top of the fixing plate (10), and a left B-pillar acceleration sensor (16) and a right B-pillar acceleration sensor (18) are installed above the left B-pillar acceleration sensor (16) and the right B-pillar acceleration sensor (18). A left A-pillar acceleration sensor (15) and a right C-pillar acceleration sensor (17) are provided to facilitate simulation of an external signal environment. The left front acceleration sensor (19), the right front acceleration sensor (20), the left B-pillar acceleration sensor (16), the right B-pillar acceleration sensor (18), the left A-pillar acceleration sensor (15) and the right C-pillar acceleration sensor (17) are detachably locked on a fixing plate (10) by the cooperation of an acceleration sensor fixing nut (8) and an acceleration sensor bolt (13), and are electrically connected to an airbag controller (11) via a connecting wire (14).
2. The portable detection and demonstration tooling for an automotive airbag control system according to claim 1, wherein: A positive impact rocker switch (2) is installed near the center position of the other side of the fixing plate (10) through a rocker switch fixing screw (7); a 3-speed 8-pin double-pole four-pole toggle switch (1) is installed on the side of the positive impact rocker switch (2); a 3-speed common cathode red and blue two-color LED (3) is installed at the bottom end of the 3-speed 8-pin double-pole four-pole toggle switch (1); the 3-speed common cathode red and blue two-color LED (3) is electrically connected to the airbag controller (11) through a connecting wire (14); and a counterweight pad (4) is installed on the other side of the positive impact rocker switch (2).
3. A portable detection and demonstration tooling for an automotive airbag control system according to claim 2, characterized in that: A side impact rocker switch (5) is mounted on the bottom end of the front impact rocker switch (2) via a rocker switch fixing screw (7); a 2-speed 6-pin double-pole double-throw toggle switch (6) is mounted on the side of the side impact rocker switch (5); a 2-speed common-cathode red-blue bicolor LED (9) is mounted on the side of the 2-speed 6-pin double-pole double-throw toggle switch (6); and the 2-speed common-cathode red-blue bicolor LED (9) is electrically connected to an airbag controller (11) via a connecting wire (14).
4. The portable detection and demonstration tooling for an automotive airbag control system according to claim 3, characterized in that: The positive impact rocker switch (2) and the side impact rocker switch (5) are switched on or off by applying external force to the rocker handle to displace it and connect the internal contacts. The displacement force required for the rocker handle can be changed by adding or removing the counterweight gasket (4).
5. The portable detection and demonstration tooling for an automotive airbag control system according to claim 4, characterized in that: When the 3-speed 8-pin double-pole four-pole toggle switch (1) is turned to the 2&1, 6&5 pin conduction position, the positive impact power-off mode is entered. Then, after the positive impact rocker switch (2) is turned to the b / c pin conduction position, the blue lamp bead in the 3-speed common cathode red and blue two-color LED (3) lights up, indicating that the positive impact power-off standby state has been entered.
6. The portable detection and demonstration tooling for an automotive airbag control system according to claim 5, characterized in that: Turn the 3-position 8-pin double-pole four-throw toggle switch (1) to the position where pins 2&4 and 6&8 are conducting to enter the side collision power-off mode. At this time, the front collision rocker switch (2) will fail. Subsequently, turn the 2-position 6-pin double-pole double-throw toggle switch (6) to the position where pins 2&3 and 5&6 are conducting. After the side collision rocker switch (5) is turned to the position where pins b&c are conducting, the red LED bead in the 2-position common-cathode red-blue dual-color LED (9) lights up, indicating that the right side collision power-off standby state has been entered.
7. A portable detection and demonstration tooling for an automotive airbag control system according to claim 6, characterized in that: Turn the 3-position 8-pin double-pole four-throw toggle switch (1) to the position where pins 2&4 and 6&8 are conducting to enter the side collision power-off mode. At this time, the front collision rocker switch (2) will fail. Subsequently, turn the 2-position 6-pin double-pole double-throw toggle switch (6) to the position where pins 2&1 and 5&4 are conducting. After the side collision rocker switch (5) is turned to the position where pins b&a are conducting, the blue LED bead in the 2-position common-cathode red-blue dual-color LED (9) lights up, indicating that the left side collision power-off standby state has been entered.
8. A portable detection and demonstration tooling for an automotive airbag control system according to claim 7, characterized in that: When enabling the acceleration in all directions for testing without testing the EDR, turn the 3-position 8-pin double-pole four-throw toggle switch (1) to the position where pins 2&3 and 6&7 are conducting, and the red LED bead in the 3-position common-cathode red-blue dual-color LED (3) lights up. At this time, all kinds of shifting operations of the handles of the front collision rocker switch (2), the 2-position 6-pin double-pole double-throw toggle switch (6), and the side collision rocker switch (5) will fail, and the red LED bead in the 3-position common-cathode red-blue dual-color LED (3) will not go out.