Hood Hinge Energy Absorbing Tab for Pedestrian Safety

The patent applies parameter changes by modifying the mechanical properties of the hood hinge system through the energy-absorbing tab. The tab is designed with specific material properties and geometric parameters (thickness, length, width) that change its bending characteristics. During normal operation, the tab remains rigid to maintain hinge function, but during impact, it bends to absorb energy, effectively changing the stiffness parameter of the system from high to low dynamically.

The invention implements dynamics by creating a hinge system that transitions from a static rigid structure to a dynamic energy-absorbing mechanism. The energy-absorbing tab is designed to remain rigid during normal hood operation but bends dynamically during collision events. This dynamic behavior allows the system to adapt its deformation characteristics based on the applied load, increasing deformation stroke during impact while maintaining structural integrity during normal use.

The invention applies merging by integrating the energy-absorbing tab directly into the existing hood hinge assembly rather than adding a separate energy absorption system. The tab is formed as part of the hinge structure itself, combining the hinge function and energy absorption function into a single integrated component. This merging approach minimizes additional complexity while achieving effective collision energy absorption through the tab's bending mechanism.

The energy-absorbing tab serves multiple functions: it acts as a structural component of the hinge assembly, provides collision energy absorption through bending, and prevents the hood from bottoming out on the vehicle body. By designing this single element to perform multiple functions simultaneously, the patent achieves effective energy absorption without proportionally increasing device complexity, as the same structure provides both mechanical support and energy management.