A working method of a hood for a smart car to protect pedestrians

A technology for engine hoods and smart cars, applied in pedestrian/occupant safety arrangements, vehicle components, vehicle safety arrangements, etc., to achieve the effects of reducing the speed of human-ground collisions and protecting people-ground collisions

Active Publication Date: 2021-03-19
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the reality that most of the existing research results only protect people and vehicles from collision damage, the present invention designs a working method for the hood of a smart car to protect pedestrians, so that the hood can protect both people and vehicles from collision damage

Method used

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  • A working method of a hood for a smart car to protect pedestrians
  • A working method of a hood for a smart car to protect pedestrians
  • A working method of a hood for a smart car to protect pedestrians

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Embodiment 1

[0033] When a smart car equipped with a bonnet of the present invention detects that the collision between car and occupant is inevitable, it protects pedestrians by the following means:

[0034] S1: When it is detected that the accident is inevitable, the airbag layer is detonated and the vehicle is fully braked until time t1. Under the impact of the airbag layer, the outer protective layer of the hood is broken, and the airbag is fully expanded to prepare for the protection of pedestrians. The moment t1 is the moment when the head collides with the car body for the first time; when the collision between the head and the car body is not detected but the human body starts to be thrown out as a whole, this moment is regarded as the moment t1.

[0035] S2: After time t1, the speed of the vehicle is controlled to keep a certain distance between the rear edge of the hood and the human body and move forward together.

[0036] Among them, the distance d between the rear edge of the e...

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Abstract

Aiming at the reality that most of the existing research results only protect people and vehicles from collision damage, the present invention designs a working method for the hood of an intelligent car to protect pedestrians. By detonating the airbag layer of the hood, the front of the car is covered with a hedgehog-shaped airbag to reduce the direct collision force between people and vehicles. At the same time, the barb-shaped air column on the outside of the airbag slows down the speed at which pedestrians are thrown out, achieving direct protection for people and vehicles. At the same time, it consumes the kinetic energy obtained by the human body from the car body; and then moves the vehicle so that the front of the car catches the human body, and the air column on the outside of the airbag delays the falling speed of the human body to further consume the potential energy and kinetic energy of the human body, thereby reducing the collision speed between the human body and the ground. Car and human-ground collision protection at the same time.

Description

technical field [0001] The invention relates to the field of smart cars, and more particularly, relates to a working method for an engine cover of a smart car to protect pedestrians. Background technique [0002] Because pedestrian accidents are closely related to the travel of almost everyone and are fatal injuries to the weak by the strong, this type of accident has become the focus of public opinion. Compared with the occupants in the vehicle, pedestrians suffer more serious injuries in traffic accidents, so it is extremely necessary to study measures to protect pedestrians. [0003] The injuries of pedestrians in traffic accidents mainly come from the first collision with the vehicle body and the second collision with the ground afterwards. Generally speaking, car body collision is the main cause of human injury, but human injury from the ground cannot be ignored. At present, the research focuses on the protection of damage caused by the car body. Scholars have propose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/36B62D25/10
CPCB60R21/36B62D25/10
Inventor 邹铁方胡林武和全尹来荣张志勇
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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