CN201712565U - Vehicle active protection airbag - Google Patents

Abstract

The utility model provides an automobile active protection safety airbag, which belongs to the technical field of automobile safety. It solves the problems that existing vehicles can only detect collisions from the front, the detection accuracy is low, and all airbags can only work at the same time. The active protection airbag of the automobile includes two or more sets of airbag devices installed around the vehicle body and a controller for controlling the operation of the airbag device. Each set of airbag devices includes an airbag, a gas generator and a sensor The sensors and airbags are connected with their corresponding gas generators, and the gas generators and inductive sensors are connected with the above-mentioned controller, and the controller can control the actions of corresponding gas generators according to the induction signals of each inductive sensor. The automobile active protection air bag has the advantages of high detection accuracy, comprehensive detection, high safety and the ability to selectively open the air bag.

Description

A kind of automobile active protection airbag

technical field

The utility model belongs to the technical field of automobile safety and relates to an automobile active protection safety airbag.

Background technique

With the substantial growth of car ownership, car safety has attracted widespread attention. To protect occupants, technologies such as high-strength bodywork, seat belts and airbags have been widely adopted. Because such measures are passive safety, relying on the car body to absorb strong collision energy, the car body will be severely deformed, and the airbag can only be opened passively when the car hits an object while driving. Colliding road pedestrians, cyclists, motorcyclists, vehicles and rear-end vehicles do not have the protection function of cushioning and energy absorption, and only protect the people in the car, and do not have the protection function for pedestrians.

In addition, my country's road traffic conditions are complex, most of which belong to mixed cross roads, and there are many pedestrians, cyclists and motorcyclists on the road, so it is imperative to develop a kind of airbag that can protect pedestrians.

Chinese patent discloses a kind of "automobile active protection anti-collision safety airbag", and its publication number is CN101327774Y, and this safety airbag is made up of gas generator, gas cylinder, intake pipe, detector, front airbag, rear airbag and engine protector. The gas generator is composed of the cover air bag, the gas generator receives the circuit instruction, and instantly ignites the work, so that the high-pressure inert gas in the gas storage cylinder is ejected instantly, and the gas generator is charged into the front air bag, rear air bag and engine cover air bag through the intake pipe. , synchronously unfold to form a rubber airbag.

It can be seen that the front airbag, rear airbag and engine cover airbag in this patent are all supplied by a gas storage cylinder, and the three airbags work synchronously. Once a collision is detected, regardless of whether there is a rear-end collision, the three airbags The airbags will all deploy simultaneously. As we all know, not every collision will cause a rear-end collision. At this time, it would be wasteful to open the rear airbag. Moreover, this patent only has a detector at the front of the car, that is to say, it cannot effectively protect against impacts from the rear of the vehicle.

Contents of the invention

The purpose of the utility model is to solve the above-mentioned problems existing in the existing active safety airbag, and propose a kind of safety airbag which can selectively open the airbag for active protection according to the collision situation.

The purpose of the utility model can be achieved through the following technical solutions: an active protection airbag for automobiles, including two or more sets of airbag devices installed around the vehicle body and a controller for controlling the work of the airbag device, characterized in that: Each group of described safety airbag devices includes an airbag, a gas generator and an induction sensor, the airbag is connected with its corresponding gas generator, and the described gas generator and induction sensor are connected with the above-mentioned controller, and the described control The gas generator can control the action of the corresponding gas generator according to the induction signal of each induction sensor.

Each group of airbag devices is located around the vehicle body. Each group of airbag devices is responsible for protecting the vehicle body in a certain area. When an induction sensor at a certain location detects that a collision is about to occur at the vehicle body, the induction signal is sent to the controller. Then the controller sends a control signal to the gas generator used in conjunction with the induction sensor, and the gas generator controls the opening of the airbag at the vehicle body to form a buffer layer at the collision position for protection in advance.

In the above-mentioned active protection airbag for automobiles, there are five sets of airbag devices, which are respectively arranged on the front, rear, left, right and engine cover of the vehicle body. The front, rear, left, and right airbags are respectively responsible for protecting the front, rear, left, and right parts of the vehicle body, while the airbag device at the engine cover is mainly used to protect pedestrians.

In the aforementioned active protection airbag for automobiles, in each group of airbag devices, there are two or more induction sensors. The controller can only trigger the action of the gas generator after receiving the induction signals of multiple induction sensors at the collision point at the same time, which improves the accuracy of induction and prevents the occurrence of misoperation.

Compared with the existing technology, the active protection airbag of this car belongs to the active defense. Before the collision occurs, the airbag is opened at the collision place in advance to absorb the collision energy and prevent the collision energy from being directly transmitted to the body, so as to solve the problem of damage caused by the collision of the car while driving. Pedestrians, cyclists, motorcyclists, occupants on both sides of the car, vehicles and rear-end vehicles play an effective buffering and energy-absorbing protection role, so as to minimize casualties, damage to objects and vehicles, and minimize damage caused by collisions. loss.

Description of drawings

Fig. 1 is a schematic diagram when all the active protection airbags of the automobile are in the unfolded state.

Fig. 2 is a left side view of Fig. 1 .

In the figure, 1. body; 2. front airbag; 3. rear airbag; 4. left airbag; 5. right airbag; 6. upper airbag; 7. engine cover.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1 and Fig. 2, the active protection airbag of this automobile is made of several groups of airbag devices, and these safety airbag devices are respectively arranged around the vehicle body 1, and each group of safety airbag devices includes an airbag, a gas generator and an inductive sensor, The airbag is connected with its corresponding gas generator, and the gas generator and inductive sensor are connected with the controller. In the present embodiment, there are 5 groups of airbag devices, which are respectively arranged on the front, rear, left and right of the vehicle body 1 and the engine cover 7 . The airbag arranged at the front end of the vehicle body 1 is the front airbag 2, the airbag at the rear end of the vehicle body 1 is the rear airbag 3, the left airbag 4 is on the left side of the vehicle body 1, the right airbag 5 is on the right side of the vehicle body 1, and the upper airbag is on the engine cover 7. 6. In this embodiment, the induction sensor is a radar, and the detection distance may be 0.5-50 m according to the specific model of the radar.

Each vehicle body 1 place that airbag is installed is also provided with inductive sensor, because engine cover 7 generally can not collide alone, so the inductive sensor here can be saved, and upper airbag 6 and front airbag 2 share inductive sensor to trigger.

During the running of the car, the inductive sensors at the front, rear, left and right of the vehicle body 1 detect the danger within a certain distance in each direction of the vehicle in real time, and judge according to the relative speed of the two. When the induction sensor detects that a severe collision is about to occur in the direction it is responsible for detecting, it sends an induction signal to the controller, and the controller controls the action of the gas generator of the airbag at the corresponding position, opens the airbag at the corresponding position, and forms a buffer at the collision position layers to absorb the collision energy.

The left airbag 4 on the left and right sides of the vehicle body 1, the right airbag 5 and the rear airbag 3 at the rear end of the vehicle body 1 and the front airbag 2, the upper airbag 6 can be opened independently. When the front end of the car collides, the inductive sensor detects the source of the signal. When it detects that only the front has a signal, the controller judges that if only the front end collides, and only controls the opening of the front airbag 2. When the inductive sensor detects that there is also a signal from the top, Then it is judged that a pedestrian collision will occur, and the upper airbag 6 is opened while the front airbag 2 is opened, the front airbag 2 can protect the pedestrian's legs, and the upper airbag 6 is used to protect the pedestrian's head.

In order to improve the accuracy of detection and prevent misoperation, two or more induction sensors can be installed in each airbag device at the same time, and the controller can only receive the induction of multiple induction sensors at the collision point The gas generator action can only be triggered after the signal.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (3)

1. A kind of automobile active protection air bag, comprises two or more groups of air bag devices installed around the vehicle body (1) and a controller for controlling the work of the air bag device, it is characterized in that each group of air bag devices described Each includes an airbag, a gas generator and an induction sensor, the airbag is connected to its corresponding gas generator, and the gas generator and the induction sensor are connected to the above-mentioned controller, and the controller can signal to control the corresponding gas generator action. 2. A kind of automobile active protection safety airbag according to claim 1, is characterized in that, the quantity of described safety airbag device has 5 groups, is respectively arranged on vehicle body (1) front, rear, left, right and engine protection. Cover (7). 3. A kind of automobile active protection airbag according to claim 1 or 2, characterized in that, in each group of airbag devices, the number of induction sensors is two or more.

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