Title: Research on active suspension-based anti-rollover control strategy for side-unloading dump trucks during lifting operations

Authors: Tian-min Zhu; Ming-mao Hu; Qing-he Guo; Min Liu; Ren-jun Liu; Meng-chao Wang; Zhong-cheng Fu; Yu Wang

Addresses: School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China ' School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China

Abstract: Aiming at the problem of poor stability of side-unloading dump trucks under lifting conditions, an anti-rollover control strategy combining active suspension and fuzzy sliding mode control (SMC) is proposed. Considering the changes in the mass and spatial position of the cargo during lateral unloading, a four-degree-of-freedom side-unloading dump truck nonlinear model was established, and the model's accuracy was validated using MATLAB/Simulink. The adjustment of SMC parameters was realised through fuzzy logic, and the fuzzy-sliding mode controller (FSMC) was used to obtain the anti-roll moment that suppresses suspension deformation. A rollover warning controller was designed using the ratio of the right wheel load to the total vehicle weight as the rollover evaluation index. Simulation was conducted using ordinary SMC and without any control for comparison. The results indicate that this strategy enhances the lateral stability of side-unloading dump trucks under lifting operations, effectively preventing rollover incidents.

Keywords: dump truck; active suspension; anti-rollover; fuzzy-sliding mode control; nonlinear model; rollover warning controller; lateral stability.

DOI: 10.1504/IJHVS.2025.147031

International Journal of Heavy Vehicle Systems, 2025 Vol.32 No.3, pp.271 - 303

Received: 26 Sep 2023
Accepted: 07 Jan 2024
Published online: 10 Jul 2025 *

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