CN108819894A - A kind of anti-settling gas-bag system of automobile collision preventing and implementation method - Google Patents

Abstract

An automobile anti-collision and anti-sinking airbag system and its implementation method, the system includes: a plurality of chassis airbags installed on the automobile chassis and capable of inflating and protruding to the outside of the vehicle body, a control module for controlling the expansion of the chassis airbags, and The sensor system connected to the control module includes a first detector for monitoring the wading depth of the car, and a second detector for sensing the collision of the car. The realization method includes: monitoring the wading depth of the car and monitoring whether a collision occurs; when the wading depth reaches a preset position or when a collision occurs, controlling the expansion of multiple chassis airbags installed on the chassis of the car. The invention is equipped with multiple detectors, and can control the expansion of multiple chassis airbags installed on the chassis of the vehicle when the vehicle is flooded or collided.

Description

An automobile anti-collision and anti-sinking airbag system and its implementation method

technical field

The invention relates to an automobile safety system, in particular to an automobile anti-collision and anti-sinking airbag system and a method for realizing the anti-collision and anti-sinking of an automobile.

Background technique

Cars have become more and more popular as production levels have improved. In the use of automobiles, if accidents occur, such as encountering heavy rains and floods, falling into rivers, collisions, rollovers, etc., economic losses will be caused and the lives of occupants will be threatened.

In order to deal with the unexpected situation of being flooded, the invention patent application with publication number CN102785630A discloses a kind of automobile anti-flooding safety airbag device, and the automobile anti-flooding safety airbag device is installed on the car chassis. The device is composed of independent buoyancy air bag, independent gas generator, inflation control valve, automatic induction switch, manual switch and so on. Multiple buoyancy airbags are installed around the chassis of the car in groups. When water damage occurs, the anti-flooding safety airbag device of the car can be automatically sensed or opened manually. The gas generator generates high-pressure gas to inflate the buoyancy airbags quickly, and the inflated buoyancy airbags break through the shell. , and is constrained by the direction of the shell to expand and protrude to the outside of the car. The car will be lifted by the buoyancy and float in the water. After reaching a certain pressure, the inflation control valve will automatically reduce the inflation speed or stop the inflation to maintain the buoyancy of the buoyancy air bag and wait for rescue. An anchor hook assembly can be installed at the bottom of the car to stabilize the car body when the car is floating, further improving safety performance. The invention patent application with the notification number CN106945623A discloses a passenger car anti-flooding airbag system. On the basis of the aforementioned patent application CN102785630A, the sensor system is further designed to include a lower water level sensor, an upper water level sensor and a gravity sensor. The vehicle wading depth signal transmitted by the water level sensor is judged. When the warning water level is reached, the engine alarm signal is turned off, and the vehicle wading depth signal transmitted by the upper water level sensor is judged. When the dangerous water level is reached, the gas generator of the airbag system is triggered. Make the airbag automatically inflate and deploy, judge the tilt angle signal transmitted by the gravity sensor, and adjust the inflation sequence and pressure of the airbag that triggers the airbag system to keep the vehicle's water entry posture balanced, so as to identify vehicles with different risk levels. Depth and the angle of inclination of the perceived vehicle, in order to adapt to more complex falling water situations.

These existing schemes have effectively solved the problem of automobiles being flooded, but they have no protective effect when accidents such as automobile collisions or rollovers occur. If corresponding protection devices are installed for these situations, the complexity and complexity of the body structure will be increased. Substantial increase in vehicle cost.

Contents of the invention

The purpose of the present invention is to provide an automobile anti-collision and anti-sinking airbag system to increase the applicability of the chassis airbag and improve the safety performance of the automobile through lower cost.

For reaching above-mentioned purpose, the technical scheme that the present invention adopts is as follows:

An automobile anti-collision and anti-sinking airbag system, comprising:

A plurality of chassis airbags installed on the chassis of the car and capable of inflating and protruding to the outside of the vehicle body;

a control module for controlling inflation of the chassis air bag; and

A sensor system connected to the control module; the sensor system includes:

the first detector to monitor the car's wading depth; and

A second detector for sensing car collisions.

Preferably, the sensor system further includes a third detector for sensing the inclination angle of the car on the X-axis and the Y-axis.

Preferably, the third detector is a gravity sensor.

Preferably, the third detector is a gyroscope.

Preferably, the sensor system further includes a fourth detector for sensing the lateral acceleration of the vehicle.

Preferably, the airbag system also includes a top airbag installed on the hood and tailgate of the automobile, and includes a plurality of the first sensors, at least one of the first sensors is installed on the chassis of the automobile, and at least one of the first sensors is installed on the chassis of the automobile. The first sensor is installed on the hood and tailgate of the car.

A method for realizing anti-collision and anti-sinking of a car, which includes: monitoring the wading depth of the car, and monitoring whether a collision occurs; when the wading depth reaches a preset position or when a collision occurs, controlling multiple The chassis air bag inflates.

Preferably, the realization method further includes monitoring the inclination angle of the vehicle on the X-axis and the Y-axis, and then controlling the inflation sequence of the plurality of chassis airbags.

Preferably, the implementation method further includes monitoring the lateral acceleration of the vehicle, and controlling the expansion of the plurality of chassis airbags when the lateral acceleration reaches a preset value.

Compared with the prior art, the present invention has at least the following beneficial effects:

The same set of airbags can handle multiple unexpected situations. The invention is equipped with multiple detectors, and can control the expansion of multiple chassis airbags installed on the chassis of the vehicle when the vehicle is flooded or collided. Furthermore, it can also control the expansion of the chassis air bag to protect the car and its occupants when the car skids.

Description of drawings

Fig. 1 is the block circuit diagram of some embodiments automobile anti-collision anti-sinking air bag system;

Fig. 2 is a schematic diagram of the state after the expansion of the chassis airbag;

Fig. 3 is a schematic diagram of the state after both the chassis airbag and the top airbag are inflated.

Detailed ways

The invention improves the sensor system of the existing automobile anti-flooding airbag system, and realizes that it can deal with more unexpected situations and better protect the automobile and passengers without increasing the complexity of the vehicle body structure. The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 1 , some embodiments of an automobile anti-collision and anti-sinking airbag system include a plurality of chassis airbags 1 , a sensor system 2 , and a control module 3 . The sensor system 2 senses the car's wading depth, collision and other information and sends it to the control module 3, and then controls the expansion of multiple chassis airbags 1 to prevent the car from sinking and reduce damage during collisions.

A plurality of chassis airbags 1 are installed on the chassis of the vehicle, and can expand and protrude toward the outside of the vehicle body. FIG. 2 shows the inflated state of the chassis airbag 1 . Regarding the design of installing multiple airbags on the chassis of the car and controlling the inflation and expansion of multiple airbags to avoid the sinking of the car after the wading depth of the car reaches the sensor position, there have been many prior patent applications, including CN106347281A, CN102785630A, CN106945623A, etc. It can be seen The structure of the airbag and its gas generator, as well as the installation method on the chassis of the car, etc. are already prior art, and these are not the innovation of this patent, so they will not be repeated here.

The sensor system 2 includes a first detector 21 for monitoring the wading depth of the car, and a second detector 22 for sensing the collision of the car.

The first detector 21 is a water level sensor. In one embodiment, the first detector 21 is installed on the chassis of the car, and when the car reaches the chassis of the car through water, it is sensed by the first detector 21, and then the control module 3 controls the expansion of a plurality of chassis airbags 1 to avoid Cars were flooded causing damage. In another embodiment, as shown in Figure 3, a top air bag 4 is installed on the car hood and the tail box cover, preferably on the car hood near the left and right sides, and on the tail box cover near the left and right sides A top airbag 4 is installed everywhere, and a water level sensor (i.e., the first detector for monitoring the depth of the car's wading) is installed on the top of the car engine cover and the tail box cover. When it is sensed by the water level sensor, the top air bag 4 is controlled by the control module 3 to expand, so as to generate greater buoyancy to the car and prevent the car from sinking.

The second detector 22 is a crash sensor. Existing crash sensors have three types: mechanical, electromechanical or electronic, and have been widely used in existing automobiles to control the expansion of safety airbags in the compartment. In one embodiment, the collision sensor is shared with the safety airbag in the vehicle compartment, that is, the second detector 22 directly uses the existing collision sensor on the vehicle without additional installation. In addition, an independent collision sensor can also be installed on the car, which can be installed on the front bumper, rear bumper, door, etc.

The sensor system 2 further includes a third detector 23 for sensing the inclination angle of the vehicle on the X-axis and the Y-axis. The third detector 23 can be a gravity sensor or a gyroscope, which is preferably installed at the center of the chassis of the car, and can sense the inclination angle of the car on the X-axis and the Y-axis. The third detector 23 detects the inclination angle of the car on the X-axis and the Y-axis in real time, and can sense the posture of the car entering the water, and then controls the opening sequence of a plurality of chassis airbags 1 through the control module 3 to prevent the car from rolling over in the water.

The sensor system 2 further includes a fourth detector 24 for sensing the lateral acceleration of the vehicle. The fourth detector 24 adopts an acceleration sensor and is installed on the suspension of the vehicle to sense the lateral acceleration of the vehicle. When the lateral acceleration of the vehicle reaches a certain value, it will roll over. The fourth detector 24 detects the lateral acceleration of the vehicle in real time, and controls the expansion of a plurality of chassis airbags 1 installed on the chassis before the rollover occurs, so as to protect the vehicle and its occupants.

The implementation method of automobile anti-collision and anti-sinking in some embodiments includes: monitoring the wading depth of the automobile, and monitoring whether a collision occurs; when the wading depth reaches a preset position, or when a collision occurs, control multiple chassis mounted on the automobile chassis The air bag inflates. It further includes monitoring the inclination angle of the car on the X-axis and the Y-axis, and then controlling the inflation sequence of the plurality of chassis airbags, so as to correct the posture of the car in water and avoid rollover. It further includes monitoring the lateral acceleration of the vehicle, and controlling the inflation of a plurality of chassis airbags when the lateral acceleration reaches a preset value, so as to reduce the damage of the vehicle after rollover and protect the occupants.

The present invention has been described in detail through specific embodiments above. These detailed descriptions are only limited to help those skilled in the art understand the content of the present invention, and should not be construed as limiting the protection scope of the present invention. Various modifications and equivalent transformations made by those skilled in the art to the above solutions under the concept of the present invention shall be included in the protection scope of the present invention.

Claims (9)

1. a kind of anti-settling gas-bag system of automobile collision preventing, including：

Multiple chassis air bags being installed on automobile chassis, being protruded to vehicle body lateral expansion；

For controlling the control module of the chassis air bag expansion；And

The sensing system being connect with the control module；

It is characterized in that, the sensing system includes：

For monitoring the first detector of automobile wading depth；And

For perceiving the second detector of car crass.

2. the anti-settling gas-bag system of automobile collision preventing according to claim 1, which is characterized in that the sensing system further includes For perceiving automobile in the third detector of X-axis and the tilt angle of Y-axis.

3. the anti-settling gas-bag system of automobile collision preventing according to claim 2, which is characterized in that the third detector is gravity Sensor.

4. the anti-settling gas-bag system of automobile collision preventing according to claim 2, which is characterized in that the third detector is gyro Instrument.

5. the anti-settling gas-bag system of automobile collision preventing as claimed in any of claims 1 to 4, which is characterized in that the biography Sensor system further includes the 4th detector for perceiving vehicle lateral acceleration.

6. the anti-settling gas-bag system of automobile collision preventing according to claim 5, which is characterized in that the gas-bag system further includes peace Roof airbag loaded on automobile engine cover and boot lid, and including multiple first sensors, at least one described first Sensor is installed on the chassis of automobile, and there are also first sensors described at least one to be installed on automobile engine cover and boot lid.

7. a kind of implementation method that automobile collision preventing is anti-settling, which is characterized in that including：

It monitors the fording depth of automobile and monitors whether to collide；

When fording depth reaches predeterminated position or when colliding, control is mounted on multiple chassis air bags of automobile chassis Expansion.

8. the anti-settling implementation method of automobile collision preventing according to claim 7, which is characterized in that the implementation method further includes Automobile is monitored in the tilt angle of X-axis and Y-axis, and then controls the expansion order of multiple chassis air bags.

9. the anti-settling implementation method of automobile collision preventing according to claim 7, which is characterized in that the implementation method further includes The transverse acceleration for monitoring automobile controls multiple chassis air bag expansions when transverse acceleration reaches preset value.