Discovering New Prognostic Features for the Harmonic Reducer in Remaining Useful Life Prediction

Table 6

The evaluation results of the test set.

Signals	R	RMSE	CAR	MAE
Vibration signal	0.95577	68.5963	0.8381	45.3437
Current signal	0.98958	32.0163	0.9414	22.2401
The new prognostic features	0.99373	20.1578	0.9746	4.0133