Wrapping type pedestrian safety air bag

Abstract

The invention discloses a wrapping type pedestrian safety air bag which comprises a first buffering protection part and a second buffering protection part which are arranged on an automobile engine hood, used for protecting a collided pedestrian and electrically connected with an automobile AEB system. The time-difference pedestrian safety air bag is simple in structure, convenient to replace after being triggered and high in reliability, the air bag which is popped out of the left mudguard or the right mudguard firstly covers an engine hood and a windshield, and therefore collision damage caused by the fact that the left mudguard and the right mudguard make contact with collided pedestrians can be reduced; and secondary injury caused by collided pedestrians and the ground is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, in particular to a wrapped pedestrian airbag. Background technique [0002] Patent US9340178B1 uses a layer of adhesive on the front of the car, and at the same time uses an eggshell-like covering above the adhesive, and this covering will automatically break in the event of an accident and firmly "stick "Pedestrians or animals who may be injured in the accident. However, this patent is a non-reusable product. Once this protection mechanism is triggered, the cover on the front of the car needs to be reinstalled, otherwise the vehicle cannot run normally on the road. [0003] Patent CN111907463A judges collision accidents through ECU and sensors. When an accident occurs, the front of the car pops up the airbag, and pops up the airbag in the form of step-by-step inflation. The roof prevents the airbag from blocking the driver's view. But when the car stops suddenly, the pedestrian will be...

AI Technical Summary

Problems solved by technology

However, the tension of the tension belt will directly affect the position of the pedestrian. If it is too loose, the pedestrian may not be tightly fixed on the hood. If it is too tight, the pedestrian may roll to the position of the fender or even to the wheel. That is, the tension of the elastic band cannot be accurately controlled

[0005] The existing pedestrian protection is divided into two categories: one is to use the special materials covered by the front parts of the car, such as the hood and windshield, to "stick" the pedestrian who was hit in the accident to the front of the car, so as to avoid the collision of pedestrians. Injuries caused by secondary collisions, but this form of pedestrian protection device has low fault tolerance and high cost, making it difficult to increase the penetration rate

The other is to utilize the pedestrian airbag outside the car, and when a collision occurs, the pedestrian airbag pops up from the front structures such as the engine cover, front bumper, and fender to weaken or eliminate the secondary injury of the pedestrian in the collision accident, but Improper control of the pedestrian's position in front of the vehicle could lead to more serious pedestrian injuries

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