High-Speed Train Emergency Brake Modeling and Online Identification of Time-Varying Parameters

Table 4

Identification results of braking ratio.

Online EM			EKF
Initial value	Identification error	Relative error (%)	Identification error	Relative error (%)
0	±0.0573	1.9890	±0.0523	2.0212
1	±0.0258	0.9980	±0.0460	1.7767
2	±0.0450	1.7380	±0.0487	1.8814
3	±0.0353	1.3833	±0.0426	1.6486
4	±0.0230	0.8903	±0.0455	1.7582
5	±0.0231	0.8940	±0.0412	1.5932
Mean	±0.0349	1.3154	±0.0461	1.7799