Performance Analysis of a Semiactive Suspension System with Particle Swarm Optimization and Fuzzy Logic Control

Table 4

Performance comparison of various control techniques for step road profile.

Parameters	Control algorithms
	Optimized fuzzy		Passive		Fuzzy skyhook		Fuzzy groundhook		Fuzzy hybrid
Tire load	10	1.3	21	—	11	1.5	8	1.9	14	1.6
	−10	5.3	−21	—	−9	5.6	−9	5.9	−7	5.5
Suspension displacement	0	1.3	60	—	0	2.3	28	2.5	0	2.4
	0	5.3	−30	—	−12	6.4	−14	6.5	−5	6.1

Bold cells give percentage overshoot.
Italic cells give stabilizing time in seconds.