A New Physical Parameter Identification Method for Two-Axis On-Road Vehicles: Simulation and Experiment

Table 3

The estimated vehicle modal parameters.

	FFT	SVM	Error	SVM	SVM
	(Hz)	(Hz)	(%)	(Hz)	ζ
Body-dominant bounce mode	2.018	1.9913	1.34%	2.0074	0.1264
Body-dominant pitch mode	—	2.8204	—	2.8995	0.1626
Body-dominant roll mode	1.06	1.0616	−0.15%	1.0707	0.1297
Wheel-dominant bounce mode	12.21	12.4157	−1.66%	12.3449	0.1066
Wheel-dominant pitch mode	12.66	12.4418	1.75%	12.4550	0.0984
Wheel-dominant roll mode	13.47	13.8558	−2.78%	14.0952	0.1835
Wheel-dominant articulation mode	13.57	13.9655	−2.83%	14.1808	0.1736