Vehicle suspension and vehicle having same

WO2025045084A1PCT designated stage expired Publication Date: 2025-03-06BYD CO LTD
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Patent Information

Application Number
PCT/CN2024/115114
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-29
Filing Date
2024-08-28
Publication Date
2025-03-06

AI Technical Summary

Technical Problem

There is room for optimization in the layout of existing vehicle suspensions between the leaf spring and the air spring, and the comfort of the vehicle needs to be improved.

Method used

A vehicle suspension is designed to use the guidance of the steel leaf spring and the stiffness of the air spring to cooperate with each other to reduce vibrations, and to optimize the life of the air spring and the comfort of the vehicle through a specific layout.

Benefits of technology

Improves the comfort and safety of the vehicle, reduces the unsprung mass, controls linear changes in the wheelbase, and extends the life of the air spring.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2024115114_06032025_PF_FP_ABST
    Figure CN2024115114_06032025_PF_FP_ABST
Patent Text Reader

Abstract

A vehicle (1000) and a vehicle suspension (1). The vehicle suspension (1) comprises leaf springs (100), wheel-end mounting bases (200), and air springs (300). The leaf springs (100) are adapted to be connected to a vehicle frame (3); each wheel-end mounting base (200) is mounted on a leaf spring (100) and is provided with a wheel-end mounting hole (201), each wheel-end mounting hole (201) being adapted for connection of a wheel-end structure; each air spring (300) is connected to a wheel-end mounting base (200), and the air springs (300) are adapted to be connected to the vehicle frame (3). Within a plane perpendicular to the central axis of a wheel-end mounting hole (201), the orthographic projection of the central axis of an air spring (300) obliquely intersects with the orthographic projection of the line of gravity of the central axis of the wheel-end mounting hole (201) at an intersection point, the intersection point being located below the wheel-end mounting hole (201). Thus, the comfort and safety of the vehicle are improved.
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Citation Information

Patent Citations

  • Suspension component and vehicle with suspension component

    CN107215161A

  • Air suspension system before combined type for truck

    CN208558927U

  • Wheel suspension, especially for steerable front wheels of commercial motor vehicles, has longitudinal links consisting of leaf spring steel with cross sectional dimensions larger in horizontal plane than in vertical plane

    DE19919845A1

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    JP2006044344A

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    KR101630182B1