Cable-net structure and control method for vehicle roof airbag

Abstract

The invention discloses a cable net structure of an air bag at the top of a vehicle and a control method. The cable net structure comprises front supporting pillars, top beams, rear stand columns, hydraulic telescopic rods, a pre-stress inhaul cable net, the air bag, cable force sensors and a controller. The cable net structure has the advantages that safety is high, the air bag and the cable net form a cable membrane structure which is safe and reliable, and therefore impacts on the top of the vehicle by vertical impact loads can be effectively resisted; escaping time is sufficient, and when the top of the vehicle is pressurized, the hydraulic telescopic rods extend out to support the cable membrane structure, and meanwhile the cable membrane structure is inclined, and can scatter foreign matter, such as soil and stones, falling on the top of the vehicle to the head of the vehicle so that damage caused by the direct impacts can be reduced. Meanwhile, because the top of the vehicle is inclined, it is avoided that because of vertical impacts, a vehicle door can not be opened; in this way, passengers inside the vehicle can rapidly evacuate, and it is avoided that because the vertical loads continue to be increased and exceed the limit bearing capacity of the cable membrane structure, the passengers inside the vehicle are injured and dead.

Description

technical field [0001] The invention belongs to the technical field of transportation engineering, and in particular relates to a cable net structure and a control method for a safety airbag on the top of a vehicle. Background technique [0002] The built-in airbag of a motor vehicle is the last line of defense to ensure the safety of the occupants of the motor vehicle. If the airbag can be deployed in time when the vehicle collides, the injuries suffered by the occupants of the vehicle can be minimized. Airbags were first used in the driver and co-pilot positions in the front row of vehicles. With the continuous improvement of people's driving safety requirements, airbags are also installed to protect rear passengers. Recently, it has been proposed to install airbags on the outside of the car (i.e. the bumper position and both sides of the car door), so as to minimize the damage to the car body and the collision objects during the collision of the motor vehicle. [0003] H...

AI Technical Summary

Problems solved by technology

The cause of such tragedies is of course directly related to the operation of large vehicle drivers, but the repeated occurrence of such accidents also exposes the safety loopholes in the current design of motor vehicles, that is, they cannot resist the impact from above

The action position of the upper impact is exactly the position of the head of the occupant in the car, so it is very easy to cause death

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