CN212447421U - Judgment system for automobile safety airbag explosion - Google Patents
Judgment system for automobile safety airbag explosion Download PDFInfo
- Publication number
- CN212447421U CN212447421U CN202020680704.9U CN202020680704U CN212447421U CN 212447421 U CN212447421 U CN 212447421U CN 202020680704 U CN202020680704 U CN 202020680704U CN 212447421 U CN212447421 U CN 212447421U
- Authority
- CN
- China
- Prior art keywords
- acceleration
- distance
- ecu
- distance meter
- vehicle speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Bags (AREA)
Abstract
The utility model discloses a judging system for the explosion of an automobile safety airbag, which comprises an ECU, a vehicle speed measuring device and an acceleration measuring device; the acceleration measuring device is arranged on a driver seat and used for calculating the acceleration of a driver relative to the vehicle and transmitting the acceleration to the ECU; the ECU is used for igniting the automobile safety airbag. Implement the utility model discloses, can judge the severity of accident through the driver for the acceleration of car and combine to implement the speed of a motor vehicle, the gasbag is exploded in reasonable place, under protection driver's safety prerequisite, the wrong point that can also avoid the gasbag explodes the waste and the hidden danger that cause.
Description
Technical Field
The utility model relates to an automobile safety field especially relates to a judgement system that car air bag point was exploded.
Background
The existing automobile air bag explosion ignition device is mainly realized by an accelerometer arranged near a front longitudinal beam, when frontal collision occurs, the accelerometer collects an acceleration signal and inputs the acceleration signal to an ECU (electronic control unit), if the acceleration exceeds a valve value, the ECU ignites an air bag, otherwise, the air bag is not ignited. However, the explosion-proof accident of the automobile airbag often occurs, so that passengers in the automobile are injured and even endanger life. For example, the accelerometer installed near the front longitudinal beam cannot be collided, the acquired signal cannot reach the valve value, the ECU does not explode the airbag, and actually, the collision accident at the moment is very serious, such as high-speed front pillar collision, high-speed drilling trucks and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a judgment system that car air bag point was exploded is provided, can avoid this accident of exploding not exploding, in time protects passenger's life safety.
In order to solve the technical problem, the utility model provides a judgment system for automobile safety airbag explosion, which comprises an ECU, a vehicle speed measuring device and an acceleration measuring device, wherein the vehicle speed measuring device and the acceleration measuring device are connected with the ECU; the vehicle speed measuring device is used for measuring the vehicle speed of the vehicle and transmitting the vehicle speed to the ECU; the acceleration measuring device is arranged on a driver seat and used for calculating the acceleration of a driver relative to the vehicle and transmitting the acceleration to the ECU; the ECU is used for igniting the automobile safety airbag.
Preferably, the acceleration measuring device comprises a distance measuring module and a calculating module, wherein the distance measuring module is connected with the calculating module, and the calculating module is connected with the ECU; the distance measuring module is used for measuring the distance from a driver to a driver seat; the calculation module is used for calculating the acceleration of the driver relative to the vehicle according to the distance.
Preferably, the distance measuring module comprises a first distance meter and a second distance meter, and the first distance meter and the second distance meter are both connected with the calculating module.
Preferably, the second distance meter is arranged below the first distance meter, and the distance between the second distance meter and the first distance meter is 10-30 cm.
Preferably, second distancer and first distancer symmetry set up at driver's seat, the second distancer is located first distancer left side, the distance between second distancer and the first distancer is 10 ~ 30 cm.
Preferably, the first distance meter is a laser distance meter.
Preferably, the second distance meter is a laser distance meter.
Preferably, the vehicle speed measuring device is a satellite navigation speed measuring module.
Implement the utility model has the advantages that:
the utility model provides a judging system for the explosion of an automobile safety airbag, which measures the automobile speed through a speed measuring device and calculates the acceleration of a driver relative to the automobile through an acceleration measuring device; and the ECU compares the acceleration with the detonation acceleration preset in the ECU, and compares the vehicle speed with the detonation vehicle speed preset in the ECU. When the acceleration is greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, indicating that the collision is severe and the detonation condition is reached, and then igniting the airbag by the ECU; when the acceleration is greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, the ECU does not detonate the airbag at the moment, and the vehicle speed is indicated as low-speed collision; when the acceleration is not greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, the damage of the passenger is not large, and the ECU does not detonate the airbag at the moment; and when the acceleration is not greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, indicating that the vehicle is low-speed collision, and then the ECU does not detonate the air bag. Implement the utility model discloses, can judge the severity of accident through the driver for the acceleration of car and combine to implement the speed of a motor vehicle, the gasbag is exploded in reasonable place, under protection driver's safety prerequisite, the wrong point that can also avoid the gasbag explodes the waste and the hidden danger that cause.
Drawings
FIG. 1 is a schematic view of a system for judging the explosion of an airbag of an automobile according to the present invention;
fig. 2 is the installation schematic diagram of the distance measuring module provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
As shown in fig. 1, the utility model provides a judgment system for automobile airbag explosion, which comprises an ECU1, a vehicle speed measuring device 2 and an acceleration measuring device 3, wherein the vehicle speed measuring device 2 and the acceleration measuring device 3 are both connected with the ECU 1; the vehicle speed measuring device 2 is used for measuring the vehicle speed of the vehicle and transmitting the vehicle speed to the ECU 1; the acceleration measuring device 3 is arranged on a driver seat and used for calculating the acceleration of a driver relative to the vehicle and transmitting the acceleration to the ECU 1; the ECU1 is used for comparing the acceleration with a detonation acceleration preset in the ECU1, comparing the vehicle speed with a detonation vehicle speed preset in the ECU1 and igniting the automobile safety air bag, wherein when the acceleration is greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, the automobile safety air bag is ignited, otherwise, the automobile safety air bag is not ignited.
The utility model discloses a speed of a vehicle is measured to speed of a vehicle measuring device 2, and the acceleration of a driver relative to the vehicle is calculated through acceleration measuring device 3; the ECU1 compares the acceleration with a detonation acceleration preset in the ECU1, and compares the vehicle speed with a detonation vehicle speed preset in the ECU 1. When the acceleration is greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, the ECU1 detonates the airbag when the collision is severe and the detonation condition is reached; when the acceleration is greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, the low-speed collision is indicated, and the ECU1 does not detonate the airbag at the moment; when the acceleration is not greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, it is indicated that the damage of the passenger is not large, and the ECU1 does not detonate the airbag at the moment; when the acceleration is not greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, a low speed collision is indicated, and the ECU1 does not detonate the airbag at this time. Implement the utility model discloses, can judge the severity of accident through the driver for the acceleration of car and combine to implement the speed of a motor vehicle, the gasbag is exploded in reasonable place, under protection driver's safety prerequisite, the wrong point that can also avoid the gasbag explodes the waste and the hidden danger that cause.
Preferably, the acceleration measuring device 3 comprises a distance measuring module 4 and a calculating module 5, the distance measuring module 4 is connected with the calculating module 5, and the calculating module 3 is connected with the ECU 1; the distance measuring module 4 is used for measuring the distance from a driver to a driver seat; the calculation module 5 is configured to calculate a speed of the driver relative to the vehicle based on the distance, and to calculate an acceleration of the driver relative to the vehicle based on the speed, for transmitting the acceleration to the ECU 1. It should be noted that the calculation module is a single chip microcomputer. The singlechip integrates various components such as an arithmetic unit, a timer, a controller, a memory, an input/output device and the like, and realizes various functions such as signal processing, data storage and the like. The utility model discloses in, the distance value that ranging module surveyed is received to the singlechip in the unit interval, and accessible time-recorder and arithmetic unit calculate the relative driver's seat's of driver distance variation value (promptly driver speed for the car) in the unit interval, further calculate the relative driver's seat's of driver speed variation value (promptly driver acceleration for the car) in the unit interval, preferably, the model that above-mentioned singlechip can adopt includes but is not limited to AT89C 51.
Further, as shown in fig. 2, the distance measuring module 4 includes a first distance meter 401 and a second distance meter 402, and both the first distance meter 401 and the second distance meter 402 are connected to the calculating module 5; the first distance meter 401 is used for measuring a first distance from the driver to the driver's seat, and the calculating module 5 is used for calculating a first speed of the driver relative to the vehicle according to the first distance and calculating a first acceleration of the driver relative to the vehicle according to the first speed; the second distance meter 402 is used for measuring a second distance from the driver to the driver's seat, and the calculating module 5 is used for calculating a second speed of the driver relative to the vehicle according to the second distance and calculating a second acceleration of the driver relative to the vehicle according to the second speed; the calculation module 5 takes the average of the first acceleration and the second acceleration as the final acceleration of the driver relative to the vehicle. The utility model discloses in order to avoid the error, adopt a plurality of distancers to measure, can reduce the error, further improve factor of safety.
Preferably, the second distance meter is arranged below the first distance meter, and the distance between the second distance meter and the first distance meter is 10-30 cm. In order to avoid overlarge distance difference between the first distance measuring instrument and the second distance measuring instrument, the distance between the second distance measuring instrument and the first distance measuring instrument is limited to be 10-30 cm, because the distance between the human body and the driving seat is larger than that between the upper part of the human body and the seat due to the safety belt.
Preferably, as another kind of setting mode, second distancer and first distancer symmetry set up at driver's seat, the second distancer is located first distancer left side, the distance between second distancer and the first distancer is 10 ~ 30 cm. As described above, the left-right arrangement has a smaller error than the up-down arrangement.
Preferably, first distancer is laser range finder, the second distancer is laser range finder, and laser range finder possesses the advantage of high accuracy, is fit for the utility model discloses a requirement.
Furthermore, the vehicle speed measuring device is a satellite navigation speed measuring module.
In summary, the utility model provides a judging system for the explosion of the automobile safety airbag, which measures the speed of the automobile through the speed measuring device and calculates the acceleration of the driver relative to the automobile through the acceleration measuring device; and the ECU compares the acceleration with the detonation acceleration preset in the ECU, and compares the vehicle speed with the detonation vehicle speed preset in the ECU. When the acceleration is greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, indicating that the collision is severe and the detonation condition is reached, and then igniting the airbag by the ECU; when the acceleration is greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, the ECU does not detonate the airbag at the moment, and the vehicle speed is indicated as low-speed collision; when the acceleration is not greater than the detonation acceleration and the vehicle speed is greater than the detonation vehicle speed, the damage of the passenger is not large, and the ECU does not detonate the airbag at the moment; and when the acceleration is not greater than the detonation acceleration and the vehicle speed is not greater than the detonation vehicle speed, indicating that the vehicle is low-speed collision, and then the ECU does not detonate the air bag. Implement the utility model discloses, can judge the severity of accident through the driver for the acceleration of car and combine to implement the speed of a motor vehicle, the gasbag is exploded in reasonable place, under protection driver's safety prerequisite, the wrong point that can also avoid the gasbag explodes the waste and the hidden danger that cause.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (8)
1. The system for judging the explosion of the automobile safety airbag is characterized by comprising an ECU (electronic control unit), a vehicle speed measuring device and an acceleration measuring device, wherein the vehicle speed measuring device and the acceleration measuring device are connected with the ECU;
the vehicle speed measuring device is used for measuring the vehicle speed of the vehicle and transmitting the vehicle speed to the ECU;
the acceleration measuring device is arranged on a driver seat and used for calculating the acceleration of a driver relative to the vehicle and transmitting the acceleration to the ECU;
the ECU is used for igniting the automobile safety airbag.
2. The system for judging the explosion of the automobile airbag according to claim 1, wherein the acceleration measuring device comprises a distance measuring module and a calculating module, the distance measuring module is connected with the calculating module, and the calculating module is connected with the ECU;
the distance measuring module is used for measuring the distance from a driver to a driver seat;
the calculation module is used for calculating the acceleration of the driver relative to the vehicle according to the distance.
3. The system for judging the explosion of the automobile airbag according to claim 2, wherein the distance measuring module comprises a first distance meter and a second distance meter, and the first distance meter and the second distance meter are both connected with the calculating module.
4. The system for judging the explosion of the automobile airbag according to claim 3, wherein the second distance meter is arranged below the first distance meter, and the distance between the second distance meter and the first distance meter is 10-30 cm.
5. The system for judging the explosion of the automobile airbag according to claim 3, wherein the second distance meter and the first distance meter are symmetrically arranged on the driver seat, the second distance meter is positioned on the left side of the first distance meter, and the distance between the second distance meter and the first distance meter is 10-30 cm.
6. The system for judging the ignition of the airbag for the vehicle according to claim 3, wherein the first distance meter is a laser distance meter.
7. The system for judging the ignition of the airbag for the vehicle according to claim 3, wherein the second distance meter is a laser distance meter.
8. The system for judging the explosion of an automobile safety airbag according to claim 1, wherein the vehicle speed measuring device is a satellite navigation speed measuring module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680704.9U CN212447421U (en) | 2020-04-27 | 2020-04-27 | Judgment system for automobile safety airbag explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680704.9U CN212447421U (en) | 2020-04-27 | 2020-04-27 | Judgment system for automobile safety airbag explosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212447421U true CN212447421U (en) | 2021-02-02 |
Family
ID=74468253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020680704.9U Active CN212447421U (en) | 2020-04-27 | 2020-04-27 | Judgment system for automobile safety airbag explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212447421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148280A (en) * | 2021-11-24 | 2022-03-08 | 中汽创智科技有限公司 | Control method of safety airbag, collision protection system and vehicle |
-
2020
- 2020-04-27 CN CN202020680704.9U patent/CN212447421U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148280A (en) * | 2021-11-24 | 2022-03-08 | 中汽创智科技有限公司 | Control method of safety airbag, collision protection system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0987151B1 (en) | Control apparatus of safety device for crew | |
| US6099031A (en) | Passive restraining system for motor vehicles and air bag module as restraining element | |
| US20080249687A1 (en) | Vehicle side impact crash detection for deployment of curtain and side airbags | |
| US5746444A (en) | Method and apparatus for single point sensing of front and side impact crash conditions | |
| US6390498B1 (en) | Configuration for triggering restraining devices in a motor vehicle | |
| US7422086B2 (en) | Vehicle impact sensor using both accelerometer and pressure sensing for side impact detection | |
| KR100517791B1 (en) | Method and device for controlling the deployment of an occupant-protection system of a motor vehicle | |
| US6324454B1 (en) | Activation control apparatus of occupant safety | |
| CN103395401B (en) | Automobile tail air bag system | |
| CN108583495B (en) | Automobile passive safety system | |
| KR100456165B1 (en) | Method and device for controlling an occupant protection means in a vehicle | |
| CN212447421U (en) | Judgment system for automobile safety airbag explosion | |
| CN110562180B (en) | Method and system for igniting safety airbag according to different passengers and vehicle | |
| JP2549878B2 (en) | Collision sensor device | |
| US7568543B2 (en) | Device for controlling restraining means in a vehicle | |
| JPH08324379A (en) | Side impact detecting device for vehicle | |
| CN111547002A (en) | System and method for judging explosion of automobile safety airbag | |
| CN112172724A (en) | Method for detonating an airbag | |
| KR102074761B1 (en) | Protecting device for passengers of vehicles and control method for the same device | |
| KR20070060569A (en) | Passenger air back unfold control method | |
| JP3438774B2 (en) | Activation control device for occupant protection device | |
| Goch et al. | Inflatable restraint system design considerations | |
| KR19990048254A (en) | Air bag system of car bumper and its control method | |
| KR940011925B1 (en) | Vehicle airbag control device using 3-direction sensing signal | |
| KR100204992B1 (en) | Air bag operating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |