An Adaptive Trend Index-Driven Remaining Useful Life Prediction Method for Renewable Energy Vehicle Reducers

Algorithm 1

The process of constructing the trend index (TI).

	Input: All sorted sample vibration signals .
(1)
(2)	mark = mean
(3)	for i = n + 1, n + 2,..., N
(4)
(5)	End
(6)	for i = 1, 2, ..., N-n-4
(7)
(8)
(9)	End
	Output: Trend health indicators of the samples.