Anti-fatigue damage active hinge system

Abstract

The invention provides an anti-fatigue damage active hinge system, which comprising a hinge seat, a first hinge arm and a second hinge arm.One end of the hinge seat is fixedly connected with the vehicle body, the other end of the hinge seat and one end of the first hinge arm hinged to the first hinge point, the other end of the first hinge arm and one end of the second hinge arm are hinged to the second hinge point, the second hinge arm is connected to the front cover of the automobile, the second hinge arm can rotate around the second hinge point and drive the front cover of the automobile to rotate, the first hinge arm and the second hinge arm are fixed by a severable fixing member, and a bottom plate extends laterally from a lower side of one of the first hinge arm and the second hinge arm. The bottom surface of the bottom plate is attached to the bottom surface of the other of the first hinge arm and the second hinge arm. The anti-fatigue damage active hinge system can reduce the relative movement trend between the first hinge arm and the second hinge arm, reduce the load impact on the fixing member between the first hinge arm and the second hinge arm, andprolong the service life of fixed parts.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an active hinge system for preventing fatigue damage. Background technique [0002] The active hinge is mainly used in the field of collision safety-passive safety. It is a mechanism developed to protect pedestrians on the road. When a car hits a pedestrian, the pressure sensor in the front bumper will generate a special collision signal to the car ECU. The car ECU Activate the active hinge to perform the unfolding function, lift the hood, increase the space under the hood, and ensure that there is sufficient deformation space under the hood when the pedestrian's head touches the hood, thereby reducing the injury to the pedestrian's head. Therefore, active hinges need several requirements: deployment stability, stability during normal use of the vehicle, and good economical maintenance performance. [0003] The active hinges currently used on vehicle models mainly include mechanical a...

AI Technical Summary

Problems solved by technology

[0004] Mechanical active hinge: fast response, stable structure, and safe use; but the layout space is large, the structure is complex, and the cost is high. The applicable models are generally high-end models, such as Mercedes-Benz, BMW, Audi, etc.;

[0005] Pin-triggered active hinge: the layout requirements are not high, the structure is simple, the cost is low, and it is suitable for some low-end models; during the normal use of the vehicle, due to road bumps or engine vibration, the front cover of the car will generate a small vibration accordingly. As a result, the pin is directly impacted, making the pin prone to fatigue damage under long-term external impact, resulting in false deployment, reducing the stability of the active hinge during normal use of the vehicle, and the cost of the active hinge is relatively high , will also reduce maintenance economics

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