Vehicle Body Frame Triangular Beam Layout for Small Offset Crash
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle body structures face challenges in minimizing passenger compartment intrusion during a 25% frontal small offset crash, leading to increased damage and safety risks.
Innovation Solution
A vehicle body frame design incorporating a front bumper beam assembly, first and second frame assemblies, and a front compartment triangular beam, with optimized force transmission paths and energy-absorbing deformation areas, including longitudinal, transverse, and triangular beams, to enhance crash performance while minimizing weight increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the body structure is strengthened to minimize intrusion during 25% frontal small offset crash, then passenger safety is improved, but vehicle weight increases
Solution Approach 1:
The front frame assembly is divided into multiple independent components including left and right longitudinal beams, transverse beams, triangular beams, and reinforcement beams. Each component is strategically positioned to handle specific crash forces, creating a segmented load path that improves safety without requiring uniform strengthening of the entire vehicle structure.
Solution Approach 2:
Reinforcement beams are selectively added at critical locations such as the front ends of longitudinal beams and connection areas between transverse beams and longitudinal beams. This localized reinforcement approach strengthens the structure where crash forces are most concentrated while avoiding unnecessary weight increase in non-critical areas.
2Strength
If reinforcement beams and plates are added to improve small offset impact performance, then crash resistance is improved, but device complexity increases
Solution Approach 1:
Multiple structural functions are merged into integrated components. For example, the transverse beams serve both as connection elements between longitudinal beams and as energy-absorbing components with deformation zones. The triangular beams simultaneously provide structural rigidity and crash force distribution. This merging reduces the number of separate parts while maintaining enhanced crash resistance.
Solution Approach 2:
The longitudinal beams are designed to perform multiple functions: they transmit crash forces from the bumper beam to the passenger compartment, provide structural support for the vehicle body, and incorporate deformation zones for energy absorption. This multi-functionality reduces the need for separate dedicated components for each function.
Data Source
AI summary
A vehicle body frame includes a front bumper beam assembly, first and second frame assemblies, and a front compartment triangular beam. The front bumper beam assembly extends along a width direction of a vehicle body. The first and second frame assemblies are coupled to the front bumper beam assembly, and spaced apart in the width direction of the vehicle body. Each of the first and second frame assemblies includes a front longitudinal beam, an upper beam and a front damper tower. The front longitudinal beam is coupled to the front bumper beam assembly, the upper side beam is coupled to the front longitudinal beam. The front damper tower is coupled between the upper side beam and the front longitudinal beam. The front compartment triangular beam is coupled between the front damper tower of the first frame assembly and the front damper tower of the second frame assembly.