Subframe, chassis and vehicle

CN122249361APending Publication Date: 2026-06-19CONTEMPORARY AMPEREX INTELLIGENCE TECHNOLOGY (SHANGHAI) LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX INTELLIGENCE TECHNOLOGY (SHANGHAI) LTD
Filing Date
2024-07-31
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When a vehicle collides with a center pillar at high speed, the subframe is prone to crushing and failure, leading to battery deformation and damage, reducing battery reliability and overall vehicle reliability.

Method used

Design a vehicle subframe, including a subframe body and an energy-absorbing structure. The energy-absorbing structure is fixedly connected to the subframe, and it can collapse stably along the collision direction to absorb impact force, reduce the stress on the battery, and improve the longitudinal crush performance of the subframe.

Benefits of technology

By absorbing impact forces through energy-absorbing structures, the risk of battery deformation and damage is reduced, improving battery reliability and overall vehicle reliability, and enhancing vehicle safety during high-speed center pillar collisions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122249361A_ABST
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Abstract

A subframe (100) for a vehicle (300) includes: a subframe body (10), the subframe body (10) including two subframe longitudinal beams (11) which are opposite to and spaced apart along a first direction; the subframe body (10) also includes a plurality of connecting crossbeams (12) which are arranged along a second direction and each connecting crossbeam (12) is connected to both subframe longitudinal beams (11), the first direction and the second direction being perpendicular; and an energy-absorbing structure (20) fixedly connected to the subframe body (10), at least a portion of which is located in the middle region of the subframe (100) along the first direction. A chassis (200) for a vehicle (300) and a vehicle (300) are also disclosed. When the vehicle (300) is involved in a collision, the energy-absorbing structure (20) can absorb the impact force and can collapse stably along the collision direction, which helps to improve the safety of the vehicle (300) in a high-speed center pole collision.
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