Vehicle Hinge Pillar Reinforcement for Impact Load Transmission
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Solution Overview
Problem
Conventional vehicle body structures are insufficient in effectively transmitting and dispersing impact loads during frontal collisions, leading to inadequate restraint of vehicle compartment deformation.
Innovation Solution
A vehicle body structure featuring a hinge pillar with door-hinge attachment portions, including a hinge reinforcement and an impact-load transmitting member that connects the front side frame to the inner-panel attachment portion, along with a dash panel and gusset member arrangement, to efficiently transmit and disperse impact loads to the vehicle rear portion, thereby preventing compartment deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional reinforcing member is used to transmit impact load from the front side frame to the front pillar, then some impact load transmission is achieved, but the transmission and dispersion of impact load is insufficient, leading to inadequate restraint of vehicle compartment deformation
Solution Approach 1:
The impact load transmission path is segmented into multiple independent members: the reinforcing member (extending obliquely upward from the front side frame), the hinge reinforcement (provided at the hinge pillar), and the door-side impact-load transmitting member (arranged inside the door). This segmentation allows each member to specifically transmit impact loads along different pathways, improving overall transmission efficiency and compartment deformation restraint without creating a single complex integrated structure
Solution Approach 2:
The invention adds transmission paths in multiple spatial dimensions: the reinforcing member extends in the vehicle longitudinal direction and upward, the hinge reinforcement is positioned at the hinge pillar location, and the door-side member extends from the door hinge rearward. This multi-dimensional arrangement creates redundant load transmission pathways that enhance reliability while maintaining structural clarity
2Adaptability or versatility
If the branch frame is arranged inside the engine room, then it may interfere with various members in the engine room, but arranging it outside the wheel house increases layout flexibility and avoids interference
Solution Approach 1:
The branch frame is extracted from the traditional engine room space and repositioned to the dead space outside the wheel house. This extraction removes the potential for interference with engine room members while utilizing previously unused spatial resources, thereby increasing layout flexibility without significantly increasing overall structural complexity
Solution Approach 2:
The invention utilizes the specific local characteristic of the dead space outside the wheel house - an area that is structurally available but traditionally unused. By placing the branch frame in this specific location with appropriate connection configurations, the design achieves both spatial efficiency and functional effectiveness without complicating the overall vehicle body structure
Data Source
AI summary
A hinge reinforcement is provided at a hinge pillar at a specified position which corresponds to an upper door-hinge attachment portion. Attachment portions which extend toward a hinge pillar inner and are attached to this hinge pillar inner are provided at the hinge reinforcement which corresponds to the upper door-hinge attachment portion. A branch frame and a gusset member which transmit an impact load inputted from a front side frame extending in a vehicle longitudinal direction to the attachment portions via the hinge pillar inner are provided so as to extend from the front side frame. Accordingly, the impact load inputted to the vehicle body at the vehicle collision can be properly transmitted to the vehicle rear portion, so that the deformation of the vehicle compartment can be restrained surely.