access icon openaccess Research on variable pressure characteristics of step variable hydraulic hybrid system based on cartridge value group

Compared with the traditional hydraulic hybrid system, step variable hydraulic hybrid power system has the advantages of low cost, fast response and pollution resistance. However, the existing variable elements are heavy, and the control valve group has the disadvantages of insufficient through-flow capacity, large flow resistance, large leakage and reversing impact. In this study, the hydraulic components integrated by the cartridge valve group which can replace the traditional three-position four-way valve group are applied to the hydraulic hybrid power system. The AMESim simulation models of directional cartridge valve and the step variable hydraulic hybrid power system are established in this study. Through simulation analysis, it is verified that the cartridge valve integrated element can replace the traditional reversing valve to solve the defects of cumbersome components and insufficient through-flow capacity. Some important parameters of the system components are simulated and analysed. The simulation results can be used to improve the design efficiency and ensure the design quality.

Inspec keywords: flow control; hydraulic systems; valves; hydraulic control equipment; proportional control

Other keywords: existing variable elements; step variable hydraulic hybrid power system; control valve group; variable pressure characteristics; pollution resistance; fast response; traditional hydraulic hybrid system; cartridge valve group; cartridge value group; system components; step variable hydraulic hybrid system; directional cartridge valve; through-flow capacity; cartridge valve integrated element; traditional reversing valve; hydraulic components

Subjects: Control technology and theory (production); Hydraulic and pneumatic control equipment; Fluid mechanics and aerodynamics (mechanical engineering); Mechanical components

http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.9333
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content/journals/10.1049/joe.2018.9333
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