Research Article

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

Table 3

Energy dissipations of the above circuit in two HPs during one cycle.

Circuits (time/s)HP with 3-D structureTHP

Motor-pump circuit (0-0.9)57.38 kJ184.01 kJ
Main-cylinder circuit (0.9-1.5)78.69 kJ229.01 kJ
Oil-filling circuit (1.5-2.0)59.42 kJ168.29 kJ
Unloading circuit (2.0-2.8)72.09 kJ204.47 kJ
Control circuit (2.8-3.00)33.23 kJ102.96 kJ
Boosting and recovery circuit23.71 kJ0 kJ
Total energy dissipation324.52 kJ888.74 kJ