A new coordinated control strategy for tracked vehicle ride comfort

Abstract

To improve tracked vehicle ride comfort and minimize weapon's vibration, a coordinated control strategy is developed for tracked vehicles' semi-active suspension systems. A model with eight degrees-of-freedom for a tracked vehicle equipped with magnetorheological dampers is established, and is followed by the formulation of a sliding mode controller. The proposed control algorithm is a localized-based controller that can change its target location in the tracked vehicle to where it is needed most. A co-simulation system model including a six-wheel tracked vehicle multi-body dynamics model, coordinated control strategy, and magnetorheological damper force allocator is developed to analyze the ride performance under bump and random road excitations. The simulation results demonstrate that the proposed strategy is very effective in improving the vehicle's ride performance and is much better than the traditional skyhook controllers. The innovation of this paper can be concluded as the coordinated control strategy can simultaneously improve vertical acceleration and pitch acceleration for the hull, which is of great importance for combat situations.

Evaluation of Ground Pressure, Bearing Capacity, and Sinkage in Rigid-Flexible Tracked Vehicles on Characterized Terrain in Laboratory Conditions

“…This layer’s physical and geotechnical properties prepared the simulated sediment. People thought a mixture of Bentonite, Diatoms, water (moisture), and sand gravel would best replace sediments [ 2 , 3 ]. Scientists thought the simulated sediment was roughly ready when the experimental data came close to or matched the in-situ data well.…”

“…This domain is of paramount importance for the development and accessibility of off-road equipment designed for particular terrain categories. Over the years, researchers have devised various methodologies to probe the mobility of these vehicles [ 2 , 3 ], given their critical role in navigating challenging terrains [ 4 , 5 ].…”

Design, modelling and testing of a novel high-torque magnetorheological damper

“…The MR fluid flows through region 1, 2, 3, 4, 5, 6, and leakage gap. In this case, the pressure drop of the damping path in the MR valve ΔP dp2 can be expressed as follows Substituting equation (19) into equation ( 16), the total pressure drop ΔP can be expressed as follows where In this case, the pressure drop of region 3 and 4 is less than the yield stress of the region 7 Combining the equations ( 16) and ( 22), the total pressure drop ΔP can be expressed as follows.…”

“…WG Ata & AM Salem investigated the semi-active suspension with the linear MR damper for the M113 tracked vehicle, which can significantly attenuate the pitching vibration of the tracked vehicle on the bumpy road profile [18]. Jianfeng Li et al presented a new coordinated control strategy which can simultaneously improve vertical acceleration and pitch acceleration for the hull [19]. Sun et al developed a new generation of variable stiffness and variable damping (VSVD) MR vehicle suspension system which consists of two MR dampers and two coil springs.…”

Analysis of ride comfort of a continuous tracked bogie system with variable configuration

“…Banerjee et al 15 proposed a 17-DOF model to analyze its RC under variable parameters for trailing arm suspension. Li et al 16 developed a control strategy for an 8-DOF TV model suspension and studied the effect of this strategy on the RC. Deng et al 17 proposed a novel flexible road wheel model and studied the influence of nonlinear stiffness on RC of a 7-DOF TV traversing a rough road.…”