WO2019006570A1

WO2019006570A1 - Vehicle anti-collision system

Info

Publication number: WO2019006570A1
Application number: PCT/CN2017/000415
Authority: WO
Inventors: 李伟; 霍晓楠; 张兴祥
Original assignee: 李伟; 霍晓楠
Priority date: 2017-07-03
Filing date: 2017-07-03
Publication date: 2019-01-10

Abstract

A vehicle anti-collision system, comprising an information acquisition and analysis module (1), warning module (2), and safety airbag module (3) that are electrically connected. The information acquisition and analysis module (1) and the safety airbag module (3) are installed at an outer side of the vehicle. The information acquisition and analysis module (1) performs active computation of a distance from a car body of the vehicle to an obstacle or another vehicle, and performs safety analysis according to a traveling speed thereof and a traveling speed of the other vehicle. The traveling speed or a traveling direction is changed by means of the warning module (2) to avoid a collision. When a collision is unavoidable, the safety airbag module (3) on the outer side of the vehicle quickly deploys an air bag around the car body of the vehicle before the collision occurs to lessen the impact and protect the safety of passengers in the vehicle. The vehicle anti-collision system has a simple structure, is safe and highly effective, and has great market potential. The present invention enables both active collision prevention by means of the warning module and quick deployment of the external air bag in an unavoidable collision to reduce the impact of the collision, thus providing a high level of protection.

Description

Automobile anti-collision system

Technical field

The invention relates to the technical field of automobile airbags, and in particular to an automobile anti-collision system.

Background technique

The safety of automobiles has attracted more and more attention. At present, significant progress has been made in passive safety technology, that is, technologies and products that provide protection for drivers and passengers in the event of a collision, such as collision sensors, airbags, and safety. Products and technologies such as belts, follow-up steering structures, and metal plate collision areas have saved many lives and reduced personnel injuries in car crashes. The airbag system is a passive safety protection system that works with the seat belt to provide effective collision protection for the occupants. The function of the airbag is to reduce the degree of injury of the occupant in the event of a collision accident, to avoid a second collision of the occupant, or to be thrown away from the seat in a dangerous situation such as a rollover of the vehicle. In the event of a collision, the inflation system can be inflated quickly in less than one tenth of a second, and the airbag will rush out of the steering wheel or dashboard as it expands. Therefore, the inside of the vehicle is protected from the impact of the forward collision, and after about one second, the airbag will contract, so that the action of the person inside the vehicle is not hindered.

At present, the anti-collision system of the existing automobile is based on the principle of one-way collision, and the speed of the vehicle is controlled according to the distance between the automobile and the obstacle. However, this anti-collision system is unilateral and only has a certain effect on stationary obstacles. If the obstacle is moving, such as other cars in motion, the anti-collision system equipped with the car can not achieve good anti-collision effect, even if the car equipped with anti-collision system has braked under the action of the anti-collision system, However, it may still be passively collided by other sports cars, causing damage to the vehicle and personal injury.

Summary of the invention

The present invention overcomes the deficiencies of the prior art and invents an automobile anti-collision system with an external airbag.

The invention is achieved by the following technical solutions:

The utility model relates to an automobile anti-collision system, which comprises an information collection and analysis module, an early warning module and an airbag module which are electrically connected, wherein the information collection and analysis module and the safety are installed on the front, the rear and the left and right sides of the vehicle. The airbag module and the information acquisition and analysis module actively calculate the distance between the vehicle body and the obstacle or other vehicles and perform safety analysis according to the vehicle speed and other vehicle speeds. The warning module is used to remind the driver to change the vehicle speed or change the direction of the vehicle to avoid collision. When it is impossible to avoid by the driver's control, the airbag module on the outside of the vehicle responds. The airbag module quickly pops up the airbag around the outside of the vehicle body in a time less than the collision, reducing the collision force and protecting the personal safety inside the vehicle.

The information collection and analysis module comprises a distance collection unit, a speed analysis unit, a driving direction analysis unit, and a collision analysis unit. The distance acquisition unit actively detects the distance around the car in real time, and the speed analysis unit takes the initiative to real-time. The vehicle's own speed and the speed of the surrounding vehicles are detected and identified and the corresponding calculations are carried out; the driving direction analysis unit actively detects and recognizes the driving direction of the vehicle and the driving direction of the surrounding vehicles in real time; and performs corresponding calculations; the collision analysis unit accepts the distance The analysis and calculation results of the acquisition unit, the speed analysis unit and the driving direction analysis unit determine the time and possibility of the collision by the preparation of the pre-program. When the collision possibility is low, it can be avoided by the driver's active operation. The unit transmits the relevant signal to the warning module. When the collision analysis unit confirms that the collision cannot be artificially avoided, the collision analysis unit transmits the relevant signal directly to the airbag module.

The warning module includes a warning control unit and a brake control unit. After receiving the signal transmitted by the information collection and analysis module, the vehicle provides an early warning indication and related operations, including changing the speed of the vehicle, changing the direction of the vehicle, and emergency parking.

The airbag module includes a time comparison unit, an airbag ejection unit, and an airbag recovery unit. When the collision is inevitable, the airbag module receives the signal transmitted by the information collection and analysis module, and then analyzes the signal through the time comparison unit. The second analysis determines that the airbag pop-up time can be controlled by relevant program programming. The airbag ejecting unit will eject the airbag less than the collision time. When the collision is over, the airbag recovery unit works and the airbag is recycled. Inside the car.

The time comparison unit is configured to compare the time required for the collision with the airbag ejection time, and adjust the airbag ejection time so that the airbag ejection time is less than the time required for the collision.

Compared with the prior art, the invention has the advantages that the invention has the advantages of simple structure, convenient use, safety and high efficiency, and broad market prospect. That is, the early warning system can be used to remind the driver to actively avoid the collision, and the external airbag can be quickly ejected when the collision cannot be avoided, thereby reducing the collision strength and maximally ensuring the personal safety inside the vehicle.

DRAWINGS

The invention will now be further described with reference to the accompanying drawings.

1 is a schematic view of an automobile anti-collision system of the present invention.

In the figure, 1 information acquisition and analysis module, 2 early warning module, 3 airbag module.

Detailed ways

The drawings are a simplified schematic diagram of an automobile anti-collision system of the present invention. The automobile anti-collision system comprises an information collection and analysis module 1 through an electrical connection, an early warning module 2, and an airbag module 3.

The automobile anti-collision system is equipped with an information collection and analysis module 1 and an airbag module 3 on the front, rear and left and right sides of the automobile, and the information collection and analysis module 1 performs the distance between the automobile body and the obstacle or other vehicle. Actively calculate and perform safety analysis according to the speed of the vehicle and other vehicles. The warning module 2 reminds the driver to change the speed or change the direction of the vehicle to avoid collision. When the collision cannot be avoided by the driver, the vehicle exterior airbag module 3 responds. , the airbag module 3 quickly pops out the safety air around the outside of the car body in less than the time when the collision occurs. The capsule reduces the collision force and protects the personal safety inside the car.

The information collection and analysis module comprises a distance collection unit, a speed analysis unit, a driving direction analysis unit, and a collision analysis unit. The distance collecting unit actively detects the distance around the vehicle in real time, and the speed analyzing unit actively detects and recognizes the vehicle's own speed and the speed of the surrounding vehicle in real time, and performs corresponding calculations; the driving direction analyzing unit actively and automatically controls the driving direction of the vehicle itself. The driving direction of the surrounding vehicles is detected and identified and the corresponding calculation is performed; the collision analysis unit accepts the analysis calculation results of the distance collecting unit, the speed analyzing unit and the driving direction analyzing unit to determine the time and possibility of the collision by the preparation of the pre-program. When the collision possibility is low and can be avoided by the driver's active operation, the collision analysis unit transmits the relevant signal to the warning module. When the collision analysis unit confirms that the collision cannot be artificially avoided, the collision analysis unit transmits the relevant signal directly to the airbag. Module.

The invention realized by the technical solution has the advantages of simple structure, convenient use, safety and high efficiency, and broad market prospect. That is, the early warning system can be used to remind the driver to actively avoid the collision, and the external airbag can be quickly ejected when the collision cannot be avoided, thereby reducing the collision strength and maximally ensuring the personal safety inside the vehicle.

Example 1

The 1-99 information acquisition and analysis modules and the airbag module are evenly arranged on the outer side of the vehicle body, and each module unit is programmed by the single-chip microcomputer. The distance-collecting unit uses the laser distance measuring device to actively detect the distance around the vehicle. The speed analysis unit actively detects and recognizes the vehicle's own vehicle speed and the speed of the surrounding vehicles in real time, and performs corresponding calculations; the driving direction analysis unit actively detects and recognizes the driving direction of the vehicle itself and the traveling direction of the surrounding vehicles in real time and performs corresponding corresponding Calculation; the collision analysis unit accepts the distance acquisition unit, the speed analysis unit, the driving direction analysis unit, and the analysis and calculation result of the relevant braking coefficient. The safety speed range set by the gradient program is 0-100km set by the single-chip computer program under different distances. /h, when the distance is lower than the preset value, the warning module will remind and actively adjust the speed. If the distance between the front and rear of the vehicle is more than 150 meters, the safe speed is 50km\h. When the distance is less than 150 meters, the warning module Remind and actively adjust the speed to the safe value range according to the braking factor. When the distance between the vehicles is shortened sharply in a short period of time, if the collision is unavoidable, such as the emergency braking of the preceding vehicle and the sudden turning of the next vehicle, the distance between the vehicles is sharply shortened. When the warning speed is adjusted to 0 by the warning module, the information collection and analysis module will be The relevant signal is sent to the airbag module. After the airbag module receives the signal transmitted by the information acquisition and analysis module, the time comparison unit calculates and analyzes the collision occurrence time and the airbag pop-up time. The airbag pop-up time can be controlled by related program programming, for example. The collision time is 10 seconds, and the airbag ejection time can be set to 5 seconds by the program. The airbag ejection time can be controlled by controlling the amount of gas generating agent in the airbag and the sensitivity of the sensor in the airbag. According to different collision time, the time comparison unit calculates the minimum ejecting time of the airbag, and the airbag ejecting unit will eject the airbag less than the collision time. When the collision is over, the airbag recovery unit works, and the airbag is recycled into the vehicle. .

Example 2

A driving vehicle is equipped with 1-99 information acquisition and analysis modules and airbag modules on the outside of the vehicle body. When the distance is 200 meters from the front, the vehicle travels at a speed of 90km\h. When the current vehicle speed decreases, the information acquisition and analysis module When the measured distance is 100 meters, the signal is transmitted to the warning module to remind the driver to decelerate, and the vehicle speed is adjusted to a set safety value of 0-60km\h. If the front brake is urgently braked, the distance is sharply reduced, even if the speed is fast. When the collision is still 0, the information acquisition and analysis module will send the relevant signal to the airbag module. After the airbag module receives the signal transmitted by the information acquisition and analysis module, the time comparison unit calculates and analyzes the collision occurrence time and Airbag pop-up time The airbag pop-up time can be controlled by related programming. For example, the collision time is 10 seconds, and the airbag pop-up time can be set to 5 seconds by the program. It can control the amount of gas generating agent in the airbag. How much is the sensitivity of the sensor in the car airbag to control the time the airbag pops up . According to different collision time, the time comparison unit calculates the minimum ejecting time of the airbag, and the airbag ejecting unit will eject the airbag less than the collision time. When the collision is over, the airbag recovery unit works, and the airbag is recycled into the vehicle. .

The above described embodiments of the present invention are further described in detail, and are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The invention has the advantages of simple structure, convenient use, safety and high efficiency, broad market prospect and large industrial applicability. That is, the early warning system can be used to remind the driver to actively avoid collision, and the external airbag can be quickly popped up when the collision is unavoidable, thereby reducing the collision strength and maximally protecting the personal safety inside the vehicle.

Claims

The utility model relates to an automobile anti-collision system, which comprises an information collection and analysis module (1), an early warning module (2) and an airbag module (3) which are electrically connected, and is characterized in that: on the front side of the automobile, the rear end and the outer side of the left and right side bodies The information acquisition and analysis module (1) and the airbag module (3) are installed, and the information acquisition and analysis module (1) actively calculates the distance between the vehicle body and the obstacle or other vehicle and performs safety analysis according to the vehicle speed and other vehicle speeds. Through the warning module (2) to change the speed of the vehicle or change the direction of the vehicle to avoid collision, when the collision cannot be avoided by the control, the outer airbag module (3) of the vehicle responds, and the airbag module (3) is less than the time when the collision occurs. Quickly eject airbags around the outside of the car body to reduce the collision force and protect the personal safety inside the car.
The automobile anti-collision system according to claim 1, wherein the information collection and analysis module comprises a distance collecting unit, a speed analyzing unit, a driving direction analyzing unit, and a collision analyzing unit; and the distance collecting unit actively and real-time pairs the automobile. The distance detection is carried out around, and the speed analysis unit actively detects and recognizes the vehicle's own speed and the speed of the surrounding vehicles in real time, and performs corresponding calculations. The driving direction analysis unit actively detects and detects the driving direction of the vehicle and the driving direction of the surrounding vehicles in real time. And the corresponding calculation is performed; the collision analysis unit accepts the analysis calculation result of the distance acquisition unit, the speed analysis unit, and the driving direction analysis unit, and determines the time and possibility of the collision by the preparation of the pre-program, and when the collision possibility is low, The collision analysis unit transmits the relevant signal to the warning module. When the collision analysis unit confirms that the collision cannot be artificially avoided, the collision analysis unit transmits the relevant signal directly to the airbag module.
The automobile anti-collision system according to claim 1, wherein the warning module comprises a warning control unit and a brake control unit, and after receiving the signal transmitted by the information collection and analysis module, the early warning module provides an early warning indication to the automobile and Related operations include changing the speed of the car, changing the direction of the car, and emergency stop.
The automobile anti-collision system according to claim 1, wherein the airbag module comprises a time comparison unit, an airbag ejecting unit, and an airbag recovery unit, and the airbag module receives the information collection when it is confirmed that the collision necessarily occurs. After analyzing the signal transmitted by the module, through the time comparison unit analysis, the signal is subjected to secondary analysis and determination, and the airbag ejection time can be controlled by relevant program programming, and the airbag ejecting unit will eject the airbag less than the collision time. When the collision is over, the airbag recovery unit works and the airbag is recycled into the vehicle.
The automobile anti-collision system according to claim 4, wherein said time comparison unit is configured to compare the time required for the collision with the airbag ejection time, adjust the ejecting time of the airbag, and eject the airbag. The time is less than the time required for the collision.