A Novel Energy-Efficient Transmission System and Control Strategy for Hydraulic Machines

Table 4

Components of the power system and scheduling scheme in different operations.

Stage	Novel hydraulic press				Traditional hydraulic press
	MPU	RAS	SS	PROFS	MPU
FF	-12/12	+6/6	+6/6	-1/1	-15/15
PS	-12/12	-6/6	-6/6	0/1	-15/15
UL	-12/12	0/6	0/6	+1/1	15/15
FR	-12/12	-6/6	0/6	0/1	-15/15
SR	-12/12	-2/6	0/6	0/1	-15/15

A/B (−12/12, et al.): B and A represent the total number of components and the number of components used in this stage, respectively. +: restore energy. −: release energy.