Vehicle Support Beam Assembly for Smoother Sill Beam Load Transfer

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Solution Overview

Problem

Existing vehicles face issues with insufficient smoothness in transitioning force to the sill beam, hindering improvements in crashworthiness.

Innovation Solution

A support beam assembly comprising a cabin longitudinal beam assembly, reinforcement plate assembly, and dash board assembly, which includes transverse beam reinforcement plates and dash board lower transverse beams, to smoothly transmit collision forces to the sill beam, enhancing crashworthiness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple beam structure is used, then the device complexity is reduced, but the smoothness of force transition to the sill beam deteriorates

Engineering Contradiction:

Improvestructure complexityVSAvoidforce transition smoothness

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The support beam assembly is segmented into multiple functional components: cabin longitudinal beam assembly, reinforcement plate assembly, and dash board assembly. Each segment serves a specific purpose in force transmission, allowing complex force transition functions to be achieved through coordinated simple segments rather than a single complex structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The force transmission path is extended from a single-dimensional beam structure to a multi-dimensional assembly incorporating longitudinal beams, transverse reinforcement plates, and vertical connections to the sill beam. This dimensional expansion enables smoother force distribution across multiple planes and directions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If reinforcement structures are added to improve force transmission, then the crashworthiness is improved, but the device complexity increases

Engineering Contradiction:

ImprovecrashworthinessVSAvoidassembly complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple reinforcement elements (longitudinal beams, transverse plates, vertical connectors) are merged into an integrated support beam assembly that functions as a unified force transmission system. This consolidation achieves high crashworthiness while managing complexity through functional integration rather than separate components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support beam assembly serves multiple functions simultaneously: structural reinforcement, force transmission, and connection between different vehicle body parts. This multi-functionality reduces the need for separate dedicated components, thereby managing complexity while achieving high reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4686642A1Support beam assembly for vehicle and vehicle

Publication Date: 2026.02.04 ZHEJIANG LEAPMOTOR TECH CO LTD

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AI summary

The present application provides a support beam assembly (10) for a vehicle and the vehicle (20). The support beam assembly (10) includes a cabin longitudinal beam assembly (100), a reinforcement plate assembly (200), and a dash board assembly (300). The cabin longitudinal beam assembly (100) defines an accommodating chamber (101), and a first end (1001) of the cabin longitudinal beam assembly (100) is configured to be connected to a front anti-collision beam of the vehicle. One end (2001) of the reinforcement plate assembly (200) is disposed in the accommodating chamber (101), and the other end (2002) of the reinforcement plate assembly (200) extends to a sill beam (500) of the vehicle and is configured to be connected to the sill beam (500). A middle of the reinforcement plate assembly (200) is connected to the cabin longitudinal beam assembly (100).