Pedestrian protection based engine hood system

Abstract

The invention discloses a pedestrian protection based engine hood system, which comprises an engine hood, an image acquisition device and a processor. The engine hood, the image acquisition device andthe processor are arranged on a vehicle. The engine hood comprises a frame, a front hood and a rear hood, the front end of the rear hood is in rotational connection with the frame, a first safety airbag device is arranged between the front hood and the rear hood, and a second safety airbag device is arranged at the rear end of the rear hood. A lifting device is arranged below the rear hood and used for upwardly lifting the rear hood to enable the rear hood to upwardly rotate by a certain angle around the front end. The first safety airbag device, the second safety airbag device and the lifting device are connected with the processor, and the image acquisition device is used for acquiring pedestrian collision images and transmitting to the processor for processing and analyzing. The pedestrian protection based engine hood system has advantages that the head of a pedestrian can be protected in collision, and other harms caused by turning of the pedestrian can be prevented.

Description

technical field [0001] The invention belongs to the technical field of automobile safety, in particular to an engine hatch system based on pedestrian protection. Background technique [0002] In recent years, the number of cars in China has been increasing, but as people use vehicles more and more frequently, the frequency of car collisions is also increasing, and the number of frontal collisions is the highest. Pedestrian protection is getting more and more attention in the field of car collision safety. When a pedestrian collides with a high-speed car, the head of the human body will collide with the hard points on the engine compartment and windshield or the human body will be on the engine compartment cover. The rollover caused casualties. In the prior art, in order to avoid the above-mentioned injuries caused by automobile collisions, a collapsible anti-injury rotary hinge is usually used in the engine compartment of the automobile, or a safety airbag is arranged at th...

AI Technical Summary

Problems solved by technology

For example, the published patent: CN205805259U discloses "an automobile engine hatch hinge that can be used for pedestrian protection". When a pedestrian collision accident occurs in the hinge of this design, the No. 1 connecting rod and the No. 2 connecting rod are separated due to the collision, and the hinge loses support. function, and then provide a larger collapse space, but the cushioning of the damage to the head is not enough to achieve the purpose of pedestrian protection only by raising a little space, and the hinge energy absorption effect is not good after a frontal collision; public patent: CN201343010Y published "Automobile Pedestrian protection airbag device", the airbag of this design is only to protect pedestrians from collisions with windshield wipers, and cannot protect pedestrians of different heights from collisions with engine compartment covers and injuries caused by rollovers

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