Active safety belt use method

Abstract

The invention discloses an active safety belt use method. The use method comprises the following steps that when a driving state quickly decelerates from high speed, an air pump connected with a vehicle driving safety system starts to work and directly inflates the air sac; a wedging section has a direct contact with a stress part; the external diameter of a narrowing section is gradually decreased along a vertical downward direction of an air inlet, so small air amount is used for the narrowing section during inflation and after the narrowing section is inflated in short time and airflows can be directed filled into the wedging section; an expansion part of the wedging section can be shortened and a contact time between the expansion part and the maximum stress part can be achieved; an S-shaped stitching line is arranged in a slit part of the narrowing section; when pressure in the narrowing section reaches a regulated value, the stitching line is jacked by the narrowing section; the wedging section contacts with the upper trunk, so a motion track of the narrowing section can be only applied to the belly side area upon ejection; and the area is prevented from rein injuries.

Description

technical field [0001] The invention relates to an intelligent automobile active safety system, in particular to a method for using an active safety belt. Background technique [0002] In the study of automobile safety, the airbag, as an auxiliary configuration of the passive safety of the body, has been paid more and more attention by people. When the car collides with an obstacle, it is called a primary collision, and when the occupant collides with the internal components of the vehicle, it is called a secondary collision. When moving, it "flutters on the air cushion" to ease the impact on the occupant and absorb the collision energy, reducing the degree of injury of the occupant. Airbags are widely used in automobile interiors, including driver airbags, passenger airbags, front side airbags, curtain airbags, and knee airbags. An airbag is generally composed of a sensor, an electronic control unit, a gas generator, an airbag, a freewheel, etc. Usually, the gas generator...

AI Technical Summary

Problems solved by technology

[0003] But the safety airbag in the prior art has the following defects. The safety airbag system belongs to a passive safety system and cannot implement active safety protection for passengers; The airbag system will not activate at all times, and due to the sharp changes in driving conditions, the driver will not be seriously injured even under the protection of the seat belt, but it is precisely because of the restriction of the seat belt on the driver's upper Person's upper torso sustained significant strangulation

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