Safety air bag system and control method

Abstract

The invention belongs to the technical field of vehicle safety, and discloses a safety air bag system and a control method. The safety air bag system comprises an air bag, an explosion device, a detection assembly, a position adjusting assembly and a control assembly. The detection assembly is used for detecting the speed change of the vehicle and the weight and sitting posture of people in the vehicle; the position adjusting assembly is connected with the air bag and used for adjusting the position of the air bag relative to people in the vehicle and a front windshield when the air bag is unfolded. The control assembly is electrically connected with the ignition device, the detection assembly and the position adjusting assembly. After the control assembly obtains the detection information of the detection assembly, whether the vehicle collides or not is judged according to the speed change of the vehicle, the collision strength of the vehicle is judged when it is judged that the vehicle collides, and meanwhile the unfolding rigidity of the airbag and the unfolding position of the airbag are determined by combining the weight and the sitting posture of people in the vehicle; therefore, the explosion device and the position adjusting assembly are controlled so as to ensure that people with different weights and sitting postures in the vehicle can be effectively protected.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, in particular to an airbag system and a control method. Background technique [0002] In the event of a traffic accident such as a collision, in order to avoid secondary collisions due to inertia of the occupants, airbags are usually installed in the car, specifically in the front (front and passenger seats) and side (front and rear seats) of the car. Airbags are installed in three directions of the rear row) and the roof respectively. Among them, the front airbag for the passenger seat is placed in the instrument panel, and it is deployed in the event of a frontal collision to cover the instrument panel, so as to alleviate the secondary collision between the passenger in the passenger seat and the instrument panel and the front windshield glass frame in the event of a frontal collision. [0003] Existing airbag systems sense collisions based on changes in vehicle speed. Specifically, wh...

AI Technical Summary

Problems solved by technology

However, the detonation method of the existing airbag is the same under all collision modes, that is to say, the position and stiffness of the airbag detonation are fixed, which will undoubtedly lead to the protection effect on occupants with partial body weight and sitting posture Poor or even unable to protect

In addition, the existing front airbag for the passenger seat is placed in the instrument panel, and the distance to the front windshield is relatively short. The front windshield is broken, which in turn leads to damage to the airbag, which affects the protection effect on the passenger in the passenger seat

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