A method for protecting human-ground collision damage in vehicle-person collision accidents

Abstract

In view of existing research results, human ground collision damage is prevented only by preventing person and vehicle separation, the invention proposes the scheme that a vehicle is moved, a vehicle-mounted safety device is used in an assisted manner, and the human ground collision damage is prevented while the human body is allowed to fall to the ground. The vehicle-mounted safety device includes a liftable engine hood and a supplementary restraint system mounted in a front bumper. After the accident happens, the vehicle fully-braked condition is kept until the human head collides the vehicle for the first time; then the speed of the vehicle is controlled to enable a certain distance to be kept between the rear edge of the engine hood of the vehicle and the human body and enable the engine hood to move forwards together; after it is detected that the human body falls to the engine hood again, the tilt angle of the engine hood is adjusted according to the human body posture, and the vehicle is started to be completely braked again; and an out-vehicle supplementary restraint system is detonated when it is detected that the human body is to fall to the ground, and the fully braked condition is kept until the vehicle is static. The human ground collision damage is prevented from three levels of vehicle energy absorption, landing attitude changing and supplementary restraint system energy absorption.

Description

technical field [0001] The invention relates to the field of pedestrian protection, and more specifically, relates to a method for protecting human-ground collision damage in vehicle-human collision accidents. Background technique [0002] Intelligence has become the development trend of future technology. For future cars, whether they are self-driving cars or smart cars, they are equipped with a large number of sensors to sense the environment outside the car and drive the car safely, so that the car can reach its destination safely, comfortably and efficiently. However, considering the complexity of traffic, it is difficult to think that future cars will never have traffic accidents under the current level of knowledge. Among all types of accidents, car-person collision accidents are closely related to everyone's travel and are fatal injuries to the weak by the strong, so they naturally become the focus of attention. Therefore, how to reduce the human injury in such acci...

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing studies have focused on the mechanism of human-ground damage. People have found that collision speed, pedestrian speed, gait, height, final landing posture, and vertical impact speed have a significant impact on human-ground collision damage, but for specific human-ground damage There is little research on protection methods

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