Composite air suspension system and vehicle

By optimizing the leaf spring assembly and longitudinal thrust assembly of the composite air suspension system, the problems of poor comfort and directional characteristics of heavy trucks have been solved, resulting in more stable and comfortable vehicle operation and reduced lateral vibration and maintenance costs.

CN119459209BActive Publication Date: 2026-07-03FAW JIEFANG AUTOMOTIVE CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FAW JIEFANG AUTOMOTIVE CO
Filing Date
2024-12-02
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The composite air suspension of heavy trucks has poor comfort and directional characteristics, as well as the problem of lateral vibration caused by full air suspension.

Method used

The system employs a composite air suspension system, including leaf spring assemblies, longitudinal thrust assemblies, and gas springs. Through the cooperation of the leaf spring assemblies and longitudinal thrust assemblies, the movement trajectory of the connecting shaft is optimized, the lateral thrust rod is eliminated, and the lateral force is directly borne by the front and rear lugs, thereby enhancing the reliability and stability of the frame.

Benefits of technology

It improves guiding characteristics, reduces lateral vibration, enhances the reliability and stability of the chassis, improves driving comfort and safety, simplifies the maintenance process, and reduces operating costs.

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Abstract

The application relates to the technical field of vehicles, and particularly discloses a composite air suspension system and a vehicle, which comprises a vehicle frame, a leaf spring assembly, a connecting shaft, a longitudinal thrust assembly and a gas elastic element. The leaf spring assembly comprises a leaf spring body, a front support and a rear support. The leaf spring body is provided with a front eye, the front eye is rotatably arranged on the front support, the front support is provided with a plurality of connecting positions, the leaf spring body is provided with a rear eye, and the rear eye is rotatably arranged on the rear support. The connecting shaft is arranged on the leaf spring body. The longitudinal thrust assembly comprises a longitudinal thrust rod and a base. The base is arranged at the connecting position of the leaf spring body and the connecting shaft. One end of the longitudinal thrust rod is rotatably connected with the base, and the other end of the longitudinal thrust rod can be selectively rotatably connected with any connecting position or separated from any connecting position. The gas elastic element is arranged between the base and the vehicle frame, the movement track of the connecting shaft can be finely adjusted, the guiding characteristic is improved, and the transverse vibration of the whole system is reduced.
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Citation Information

Patent Citations

  • New energy light truck stabilizer bar bushing assembly

    CN118927907A

  • Leaf spring lining assembly, leaf spring suspension with leaf spring lining assembly and vehicle

    CN204020459U

  • Double -piston rubber air spring

    CN204784382U

  • Thrust rod support and vehicle with same

    CN219523599U

  • Suspension device for vehicle

    JP2004284520A