Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Handling and braking analyses of a heavy vehicle with cross-axle fluidically-coupled suspension
AU - Cao, Dongpu
AU - Rakheja, Subhash
AU - Su, Chun-Yi
PY - 2009
Y1 - 2009
N2 - The handling and braking responses of a heavy vehicle equipped with a cross-axle fluidically-coupled hydropneumatic suspension concept are investigated. The proposed fluidically-coupled suspension is conceived by diagonally interconnecting different hydraulic fluid chambers of the four suspension struts of the vehicle. The analytical formulations of suspension forces are derived based on fluid flows through the couplings and damping valves. A generalized full-vehicle model is developed and validated to evaluate the handling and braking responses to two critical vehicle maneuvers: (i) braking-in-a-turn; and (ii) split-μ straight-line braking. The responses of the vehicle model with the coupled suspension are compared with those of the uncoupled suspension under various inputs to demonstrate the potential benefits of the proposed cross-axle fluidic coupling of the suspension struts.
AB - The handling and braking responses of a heavy vehicle equipped with a cross-axle fluidically-coupled hydropneumatic suspension concept are investigated. The proposed fluidically-coupled suspension is conceived by diagonally interconnecting different hydraulic fluid chambers of the four suspension struts of the vehicle. The analytical formulations of suspension forces are derived based on fluid flows through the couplings and damping valves. A generalized full-vehicle model is developed and validated to evaluate the handling and braking responses to two critical vehicle maneuvers: (i) braking-in-a-turn; and (ii) split-μ straight-line braking. The responses of the vehicle model with the coupled suspension are compared with those of the uncoupled suspension under various inputs to demonstrate the potential benefits of the proposed cross-axle fluidic coupling of the suspension struts.
M3 - Journal article
VL - 1
SP - 405
EP - 416
JO - SAE International Journal of Commercial Vehicles
JF - SAE International Journal of Commercial Vehicles
SN - 1946-391X
IS - 1
ER -