Review of Recent Advances in the Drive Method of Hydraulic Control Valve

Hydraulic control valves are widely used in industrial production, agricultural equipment, construction machinery, and other large power equipment for controlling the pressure flow of fluids hydraulic systems. The driving method has a significant impact on response accuracy valves. This paper reviews methods spools from five aspects: solenoid drive, material expansion motor valve another drive. It summarizes various schemes currently available spool drive analyzes each them. After optimizing core, can reach 3%, minimum time is 7 ms. According to characteristics different methods, differences between them compared, advantages disadvantages analyzed, application scenarios identified. Solutions drawbacks existing proposed, which provide directions further optimization. We have found that drives simple control, low cost, most used. Material telescopic drives, costly, complex optional use special requirement situations. Based an outlook future presented. review facilitates comprehensive understanding spools, points out shortcomings great significance improving proposing new methods. positive effect responsiveness