Dynamic Characteristics Analysis of the Hub Direct Drive-Air Suspension System from Vertical and Longitudinal Directions

Table 3

Parameters of the three-DOF quarter car model considering real-time UMP.

Parameter	Value·	Parameter	Value
Rt (m)	0.256	ms (kg)	335
mus (kg)	15.5	mur (kg)	30
(m/s^2)	9.8	cs (N·s/m)	2300
kb (N/m)	5 × 10^6	kt (N/m)	2.5 × 10^5
Pa (Pa)	1 × 10^5	A0 (m^2)	0.009
Dse (−)	0.008	P0 (Pa)	3.17 × 10^5
V0 (m^3)	2.4 × 10^−3	Dve (−)	0.0072
κ (−)	1.4	μ (−)	0.6
ξtx (−)	0.1	kcp (N/m^2)	1.5 × 10^7
at (m)	0.0355