Automatic control device used in expanding process of air bag restraint system

Abstract

The invention discloses an automatic control device used in the expanding process of an air bag restraint system. The automatic control device aims to solve the problem that in the prior art, a common air bag restraint system injuries the head, the neck and the chest of a passenger who sits too front, and particularly a passenger with the head being close to the installation position of the air bag restraint system. The automatic control device comprises an air bag body (1), an air bag body pressing plate (2), an air bag support (5), a gas generator (6) and four drawstring control devices (7). The gas generator (6) is installed in a round through hole of a base plate in the air bag support (5), the air bag body (1) is installed on a base plate around the air generator (6) through the air bag body pressing plate (2), the four drawstring control devices (7) are installed at the four corners of the air bag support (5), one end of each of four drawstrings B (4) in the four drawstring control devices (7) is connected with the middle part of the upper surface of the air bag body (1), and the stretching-out ends of four drawstrings A (3) in the four drawstring control devices (7) are connected with the peripheral part of the upper surface of the air bag body (1).

Description

technical field [0001] The invention relates to a control device equipped on an automobile, more precisely, the invention relates to an automatic control device for the deployment process of a safety airbag. Background technique [0002] The shape change during airbag deployment is very important for small-sized occupants and occupants who sit forward, especially occupants whose heads are close to the installation position of the airbag. During the inflation process of the airbag, since the middle part of the upper surface of the airbag is in the position facing the gas generator, the middle part of the airbag is deployed first relative to the surroundings. If the occupant has come into contact with the airbag during the deployment of the airbag, the huge impact force and high temperature generated by the gas inside the airbag may cause serious injury or even death to the occupant. Existing common frontal airbags can provide adequate protection for occupants in normal posit...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem that the existing common frontal airbag may cause damage to the occupants who are sitting in front of the off-position occupants, especially to the head, neck and chest of the occupants whose heads are close to the installation position of the airbag. Provided is an automatic control device for an airbag deployment process

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