Two-Layer Parallel Fuzzy Logic Controller Design for Semiactive Suspension System with a Full Car Model

Table 1

The symbols and parameters of a full car model [31].

Symbols	Description	Value	Unit
m1, m4	Unsprung mass at the first, fourth wheels	30.2	kg
m2, m3	Unsprung mass at the second, third wheels	49.7	kg
m	Sprung mass	1150	kg
k11, k21, k31, k41	Stiffness coefficient of the tyres	181000	N/m
k12, k42	Stiffness coefficient of front suspension	30000	N/m
k22, k32	Stiffness coefficient of rear suspension	32500	N/m
c1, c2, c3, c4	Damping coefficient	1400	Ns/m
JY	Pitch moment of inertia of sprung mass	861.8	kgm^2
JX	Roll moment of inertia of sprung mass	330.5	kgm^2
a	Length of the front axle from the CG	1.116	m
b	Length of the rear axle from the CG	1.232	m
d, c	Length of the left/right wheels from the CG	0.621	m