Optimization of Automotive Suspension System by Design of Experiments: A Nonderivative Method

Table 7

Levels of influential parameters in fractional factorial design.

Factors	Low (−1)	High (+1)
Speed (), RPM	150	250
Tire pressure (typ), psi	35	40
Camber (cma), degree	1	3
Spring stiffness (ks), N/mm	18000	26000
Damping coefficient (cs), N-s/m	418	673
toe, mm	10	20
Mass (), kg	41	81