KR970026532A - Airbag deployment device and method considering collision area of vehicle - Google Patents

Abstract

It is an object of the present invention to provide a reliable airbag deployment method and apparatus in consideration of the collision area to accurately deploy the airbag to various collision targets as well as to consider the acceleration value as a method for determining whether the airbag is deployed.

The present invention is an airbag deployment apparatus of a vehicle by analyzing an acceleration sensor, a plurality of collision area detection means for detecting the collision area, and the signal input from the acceleration sensor and the collision area detection means to determine the type of collision airbag And a device and method for deploying the airbag when a collision is detected at the army sensor.

Accordingly, by analyzing and determining the type of collided object based on the acceleration value and the collision area generated during the collision of the vehicle, the airbag is deployed only when necessary, and thus it is possible to more accurately determine whether the airbag is deployed, thereby protecting the driver's safety. This has the effect of increasing the reliability.

Description

Airbag deployment device and method considering collision area of vehicle

As this is a public information case, the full text was not included.

1 is an airbag deployment block diagram in consideration of the collision area of the vehicle according to an embodiment of the present invention.

2 is a detailed block diagram of the ECU shown in FIG.

3 is an airbag deployment flow chart considering the impact area of a vehicle according to an embodiment of the present invention.

4 is a graph of an example of conventional acceleration value data for determining a collision.

5 is a collision area calculation graph according to an embodiment of the present invention.

Claims (5)

An airbag deployment apparatus of a vehicle, comprising: an acceleration sensor (10) for detecting a change in speed when colliding with an object of a vehicle and generating an acceleration value; A plurality of collision area detecting means 20 capable of detecting a collision area of the impacted vehicle when the vehicle collides with any object; Comparing and analyzing the acceleration value input from the acceleration sensor 10 and the collision reference data, and analyzing the collision area signal input from the collision area detecting means 20 to determine the collision type to the deployment situation of the airbag 50. An ECU 30 which is determined and at the same time outputs an ignition signal to the gas generator 40 when a collision is detected at the army sensor 36; And a gas generator (40) for deploying the airbag (50) with the gas generated by ignition by the ignition signal output from the ECU (30). According to claim 1, wherein the plurality of collision area detection means 20 is mounted to the front of the vehicle, the collision area detection means 20, which is normally on state collision in proportion to the number of off by the collision Airbag deployment device considering the impact area, characterized in that the sensing area. The method of claim 1, wherein the ECU (30) means; The acceleration is input from the acceleration sensor 10 and at the same time, the collision type is received from the collision area detecting means 20, and the collision type is analyzed. The collision type is determined to be an airbag deployment situation or the collision contact area is predetermined. The CPU 35 outputs a high signal to the logic circuit 37 when it is larger than the data of the input area, and detects the impact generated during the collision to independently determine the collision situation. In the abnormality, the drive signal is output to the drive circuit 38 only when the high sensor is simultaneously input from the arm sensor 36 for outputting a high signal to the logic circuit 37 and the CPU 35 and the arm sensor 36. And a driving circuit 38 that receives the driving signal 38 from the logic circuit 37 and outputs an ignition signal to the gas generator 40. Bag deployer. A method for deploying an air bag of a vehicle; A first step of determining whether a collision signal of the vehicle is applied from a plurality of collision area detection means when the vehicle collides; A second step of determining whether a collision acceleration value is applied from the acceleration sensor 20 when a collision signal is applied from the collision area detecting means 10 in the first step; A third step of analyzing a collision area and analyzing a collision type when a collision signal and an acceleration value are applied in the first and second steps; A fourth step of determining that the collision area corresponds to the airbag deployment situation or the collision prevalence corresponds to the airbag deployment situation in the third step; A fifth step of determining whether a collision is detected from the Army sensor when it is determined in the fourth step that the collision area corresponds to the airbag deployment situation or the collision prevalence corresponds to the airbag deployment situation; And a sixth step of outputting an ignition signal when a collision is detected from the Army sensor in the fifth step and breaking the airbag deployment situation in the fourth step. 5. The airbag deployment method according to claim 4, wherein the impact area is analyzed to be proportional to the number of the collision area detection means 10 at the first stage which is turned off due to the collision in the third step. . ※ Note: The disclosure is based on the initial application.