Title: Efficiency of controllable pneumatic isolations in improving the RC-RF of heavy commercial vehicles

Authors: Gang Zhang; Weijia Chai; Yonghui Zhang

Addresses: School of Mathematics, Jiaozuo Normal College, Jiaozuo 454000, China ' Enrollment and Employment Division, Jiaozuo Normal College, Jiaozuo 454000, China ' Jiaozuo Environmental Monitoring Center, Jiaozuo 454000, China

Abstract: Based on the optimal fuzzy control, the controllable pneumatic isolation system of the heavy commercial vehicle using active damping (case 1), active stiffness (case 2), and both active damping and active stiffness (case 3) is researched to ameliorate both ride-comfort and roading-friendly (RC-RF). Operator's seat RMSaws and dynamics loading stress factors (ν) of roading-friendly are used to compare the performances of the three control cases. The result indicates that the velocity and rough road surface greatly affect the vehicle's RC-RF. The RMSaws of case 1 is smaller than case 2 while ν of case 1 is larger than case 2. Both RMSaws and ν of case 3 are the smallest. Accordingly, the controllable pneumatic isolation system using both active damping and active stiffness should be used to improve the vehicle's RC-RF.

Keywords: heavy commercial vehicles; nonlinear dynamic models; controllable pneumatic isolations; operator's comfortable; road-friendly.

DOI: 10.1504/IJVNV.2024.142747

International Journal of Vehicle Noise and Vibration, 2024 Vol.20 No.2, pp.159 - 180

Received: 28 Feb 2024
Accepted: 14 May 2024
Published online: 20 Nov 2024 *

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