Article
Engineering, Mechanical
Tadeas Sedlacek, Dirk Odenthal, Dirk Wollherr
Summary: This paper discusses the tuning of passive vehicle setup considering actuator configuration and control system capabilities, quantifying performance using optimal control methods, analyzing the effects of rear-axle steering and longitudinal torque allocation, and presenting methods for generating optimal lap trajectories.
VEHICLE SYSTEM DYNAMICS
(2021)
Article
Chemistry, Multidisciplinary
Toshinori Kojima, Pongsathorn Raksincharoensak
Summary: The study proposes a rear-wheel steering control system that actively steers the rear wheels depending on the perceived risk level to contribute to autonomous driving, which ensures a safer and smoother drive while improving emergency avoidance performance.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Mechanical
G. Suresh Kumar, L. A. Kumaraswamidhas
Summary: Developing fabricated rear axle housing for heavy-duty off-road applications posed challenges due to budget and timeline constraints. By analyzing rear axle housing beam failures, engineers successfully resolved failures in Torture-Track (TT) and verified the effectiveness of the optimized design through FEA and Rig testing.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Electrical & Electronic
Tao Xu, Yulong Liu, Xuanhao Cao, Xuewu Ji
Summary: In this article, a novel cascade control paradigm is presented for the automatic lateral guidance control of heavy commercial vehicles (HCVs), which aims to address the nonlinearity and complexity in the lateral dynamics of HCVs and their steering subsystems. The proposed control framework consists of an outer vehicle chassis dynamics controller and an inner steering controller, designed to mitigate the challenges associated with trajectory tracking and steering mapping. Experimental results demonstrate the feasibility and effectiveness of the proposed cascade steering control paradigm.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2022)
Article
Computer Science, Information Systems
Pai-Chen Chien, Chih-Keng Chen
Summary: This study presents a control strategy for torque vectoring and active rear wheel steering, which enhances vehicle lateral dynamic behavior and stability through model-based control and optimization-based control allocation.
Article
Automation & Control Systems
Tao Xu, Xiangxin Liu, Zheng Li, Bo Feng, Xuewu Ji, Fuwei Wu
Summary: This paper proposes a steering control scheme for an all-wheel-steering multi-axle vehicle to optimize low-speed steering flexibility and high-speed vehicle stability. The vehicle's steady-state gains at different speeds are reshaped through dynamic analyses, providing the closed-loop steering control system with good tracking performance. A steering controller based on the sliding mode control approach is designed to control the steering angle of each wheel at different axles. The super-twisting control algorithm is combined with a model-based observer to handle disturbance and eliminate chattering effects.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2023)
Article
Engineering, Mechanical
Shaun Smith, James Knowles, Byron Mason, Sean Biggs
Summary: Axle tramp is a self-sustaining vibration in the driven axle of a vehicle that occurs under heavy braking or acceleration. This study uses a 6DOF mathematical model to analyze the effects of driveline stiffness, axle mass, and fore/aft stiffness on the system's dynamics. Bifurcation analysis reveals the parameter space where tramp occurs and the trade-offs in minimizing tramp severity.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Mechanical
Yo Han Choi, Ken-An Kwon, Chul-Hee Lee
Summary: An experimental validation of a theoretical model for simulating the static rollover angle of commercial vehicles was conducted. The model was derived from the center of gravity model and the static rollover angle model. The experiments were performed on different types of commercial and special vehicles, and the results were classified into single rear axle and double rear axle vehicles. The simulated data matched well with the measured data for single rear axle vehicles, but measurement issues were encountered for double rear axle vehicles due to the structural characteristics of the suspension module. This study proposes a new measurement method and theoretical model for double rear axle vehicles, and the experimental results showed good agreement between the simulated and measured static rollover angle.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Zhizhong Zhang, Heng Du, Shumei Chen, Yuzheng Li, Han Wang
Summary: In this paper, a new two DOF electro-hydraulic servo steering system (TDEHSSS) is proposed for heavy multi-axle vehicles to improve steering performance. A complex nonlinear dynamic model and MATLAB simulation results demonstrate that TDEHSSS can meet the proposed requirements. Experimental verification on a test bench confirms the effectiveness of the system, showing consistency between simulation and real-world performance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2022)
Article
Chemistry, Physical
Bin Zheng, Shengyan Fu, Jilin Lei
Summary: This study optimizes the design of the drive axle housing through static analysis, fatigue life analysis, and dynamic characteristic study. By using topology optimization and multiobjective optimization methods, the mass and stress of the drive axle housing are effectively reduced, while the fatigue life and natural frequencies are increased.
Article
Acoustics
Xiang Liu, Gangfeng Wang, Xuefeng Suo, Teng Du, Wanting Wang
Summary: This paper proposes a new coupling suspension system, consisting of an anti-synchronous middle and rear axle hydraulically interconnected suspension (MR-HIS) and a front axle conventional independent suspension (CIS), to improve the wheel load distribution performance and ride comfort of the truck. The dynamics equations and modal analysis demonstrate that the MR-HIS system can reduce body bounce modal stiffness, increase modal damping ratio, and enhance the dynamic coupling performance of the middle and rear wheels. Frequency response analysis shows that the MR-HIS system significantly improves load balance distribution between the middle and rear wheels and suppresses load transfer to the front wheel, thereby improving truck handling stability and driving comfort.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Chemistry, Multidisciplinary
Yafei Li, Yiyong Yang, Xiangyu Wang, Yongtao Zhao, Chengbiao Wang
Summary: This study proposes a state observer based on the EKF method to estimate the vehicle sideslip angle using steering torque instead of steering angle. Transfer functions between the sideslip angle-steering torque and sideslip angle-steering angle are established, and the analysis shows that the steering torque signal reacts more rapidly and directly due to hydraulic pressure. Finally, the proposed method is validated through a simulation hardware-in-the-loop bench test, showing accurate reflection of the sideslip angle with good reliability and effectiveness.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Electrical & Electronic
Peng Hang, Xinbo Chen
Summary: This paper presents a designed active rear steering (ARS) control system to enhance the active safety performance of vehicles, particularly in extreme conditions. The ARS controller is designed using the sliding mode predictive control (SMPC) approach based on a 3 degrees of freedom (DoF) nonlinear vehicle model. Four active safety performances are considered, and their priorities are defined. An event-triggered mechanism (ETM) is employed to adjust the ARS controller for different driving conditions. Simulation results demonstrate that the proposed ARS system improves the active safety performance for human drivers, with the SMPC algorithm outperforming the fast terminal sliding mode control (FTSMC) algorithm.
Article
Engineering, Mechanical
Aakarsh Ranjan, Rajasekhara Reddy Mutra, Yash Kirty, J. Srinivas, Muhamad Norhisham, D. Mallikarjuna Reddy
Summary: This paper analyzes the bending failure of the non-drive automotive rear axle beam of a heavy commercial vehicle and highlights the regions of failure in the axle cross-section and its impact. By using a 3D CAD engineering model and FEA software, the stress/strain induced in the failed axle beam is studied. Based on the results, the axle beam will undergo changes in cross-sectional and material to eliminate the failure and improve product quality and life.
INTERNATIONAL JOURNAL OF HEAVY VEHICLE SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Seunghoon Woo, Chanwoo Heo, Man-Ok Jeong, Jun-Mo Lee
Summary: This research aims to investigate steering feel by analyzing a steering system and an electric power steering logic. The definition of steering feel and the methods for evaluating it are discussed. A sensitivity analysis is conducted by modeling the developed vehicle and a competitor's vehicle. By modifying the electric power steering control system, the desired steering characteristics are achieved.
APPLIED SCIENCES-BASEL
(2023)
