Rear center air bag restraint system and control method thereof

Abstract

The invention discloses a rear center air bag restraint system and a control method thereof. The rear center air bag restraint system is composed of two airbag units which are symmetrically arranged,wherein the two airbag units are installed at the middle position of a rear seat; the two airbag units comprise two air chambers, and inflation is carried out when a side collision occurs to a vehicle; inflation is carried out by an air inlet of the first air chamber; the air flow is arranged in a second air chamber along one-way valves in airbag covers in a filling mode; and after the airbag covers are completely unfolded, the unfolding direction of the airbag covers and the heading direction of the vehicle form an included angle of 0-15 degrees, and the two airbag units can be mutually squeezed and supported. The bottom end of the second air chamber is positioned above a cup holder of the rear seat after unfolding. In the collision process, a pressure sensor in the second air chamber detects the air pressure condition in air bags, and when the air pressure condition exceeds a threshold value, the air is released through the side one-way valves of the air bag restraint system units toplay a buffering role and protect passengers.

Description

technical field [0001] The invention belongs to the technical field of vehicle driving safety, and in particular relates to a rear center airbag and a control method thereof. Background technique [0002] Automobile collision accidents can be divided into frontal, side, rear-end, rollover and other forms of collisions. Among them, frontal collisions account for most of all collision forms, followed by side collisions. [0003] In order to reduce the injuries caused by side collisions to occupants, more and more vehicles are equipped with side protection devices such as side curtain airbags (CAB) and side airbags (SAB), which effectively reduce the risk of collision between front and rear passengers in side collision accidents. Casualties caused by direct collision with hard objects such as ornaments. [0004] For the rear occupants, when a side collision occurs, the far-end occupants (that is, the occupants on the non-collision side) will move toward the inside of the vehi...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the protection problems of the collision between the passengers in the side collision of the rear passengers and the collision between the passengers and hard objects such as cup holders, the present invention provides a rear middle airbag, which is used to solve the collision between the rear passengers and the collision between the passengers and the rear. The problem of secondary damage caused by collision with hard objects such as cup holders

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