Development of a Representative EV Urban Driving Cycle Based on a k-Means and SVM Hybrid Clustering Algorithm

Table 3

PCA results.

Number of principal component	Principal component variance	Variance contribution rate /%	Cumulative variance contribution rate /%
1	2.892	36.15	36.15
2	2.635	32.94	69.09
3	2.280	28.50	97.59
4	0.182	2.27	99.86
5	0.005	0.06	99.92
6	0.004	0.05	99.97
7	9.9e-4	0.02	99.99
8	5.9e-4	0.01	100.00