Self-adaption front bumper system used for vehicle and control method

Abstract

The invention discloses a self-adaption front bumper system used for a vehicle and a control method and relates to the field of safety of vehicles. The self-adaptation front bumper system used for the vehicle can be controlled to extend out to change the movement tracks when a pedestrian in front of the vehicle collides with the vehicle. The self-adaption front bumper system comprises a judgment module, a vehicle speed sensor, a central control module and an execution mechanism, wherein the judgment module is used for judging whether an object in front of the vehicle is a pedestrian and acquiring related information of the pedestrian when determining that the pedestrian is in front of the vehicle, and the related information comprises height information and movement information of the pedestrian; the vehicle speed sensor is used for acquiring the speed of the vehicle; the central control module is used for calculating the extension length relative to a front bumper according to the related information of the pedestrian and the speed of the vehicle; the execution mechanism is used for extending by a certain distance. The invention further provides a corresponding control method. By means of the self-adaption front bumper system and the control method, harm to heads, colliding with the vehicle, of pedestrians with different heights can be effectively relieved.

Description

technical field [0001] The invention relates to the field of vehicle safety, in particular to an adaptive front bumper system and a control method for vehicles. Background technique [0002] During the driving process of the vehicle, the main cause of death caused by the collision between the pedestrian and the vehicle is the severe impact on the head of the pedestrian. In the area from the lower edge of the windshield to the rear edge of the engine hood, due to the greater rigidity of the body structure, it is more likely to cause serious head injuries or even death to pedestrians, and in this area, the probability of pedestrian head collisions It is also significantly higher than the rest of the vehicle. [0003] At present, in terms of safety protection in this area, vehicle manufacturers mainly install pedestrian airbags in this area to ensure the safety of pedestrians. When a pedestrian collides with a vehicle, by opening the pedestrian airbag installed in this area, ...

AI Technical Summary

Problems solved by technology

[0004] However, the setting of the pedestrian airbag is only designed for pedestrians of a specific height. If the height is high or short, the airbag cannot effectively protect the head of the pedestrian. In addition, when the airbag is deployed, it will cover most of the windshield area, making the driver's field of vision worse, prone to the risk of secondary collision with pedestrians

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