Passenger protection device and protection method during side collision of vehicle

Abstract

The invention discloses a passenger protection device and a protection method during side collision of a vehicle. The passenger protection device comprises a collision sensor, a controller and a safety belt buckle, wherein the collision sensor is installed at the side part of a vehicle body and can output a vehicle collision signal; the controller is used for acquiring a collision speed according to the vehicle collision signal and outputting a safety belt loosening signal if the collision speed is in a preset speed region; and the safety belt buckle is used for relieving the constraint of the safety belt after receiving the safety belt loosening signal. With the adoption of the passenger protection device, direct damages to a passenger due to deformation of the side surface of the vehicle can be prevented, and secondary impact to the passenger due to the fact that the passenger severely breaks away from a seat can also be prevented.

Description

technical field [0001] The invention relates to automobile safety technology, in particular to an occupant protection device and a protection method when a vehicle is side-collision. Background technique [0002] Seat belts are the basic protective devices for protecting drivers and passengers. They can buffer people in the event of traffic accidents and prevent secondary injuries. [0003] Although seat belts have played a very good protective role in most accidents, studies have found that within a certain speed, the protective effect of seat belts is not very obvious when a vehicle has a side collision, and can even be ignored. And when the occupant puts on the safety belt when the side collision occurs, the occupant will often feel restrained by the restraint of the safety belt, and may even be injured. After the collision occurs, it will cause trouble to rescue the occupant or remove the safety belt by himself. [0004] The reason for the above situation is that during...

AI Technical Summary

Problems solved by technology

[0003] Although seat belts have played a very good protective role in most accidents, studies have found that the protective effect of seat belts is not very obvious or even negligible when the vehicle has a side collision within a certain speed

And when the occupant puts on the safety belt when the side collision occurs, the occupant will often feel bound by the restraint of the safety belt, and even be injured. After the collision, it will cause trouble to rescue the occupant or remove the safety belt

[0004] The reason for the above situation is that during a side collision, part of the collision energy will be consumed by the deformation of the door, B-pillar, threshold and other components, and part will be consumed by the cushioning materials such as the door interior and seat side structure; while the other part The energy will be absorbed by the occupant's body and transformed into damage to the occupant. This is the direct cause of the occupant's injury, so the energy absorbed by the occupant should be reduced as much as possible. Absorbs more energy, causing the occupant to take damage

Images