Therefore, a variable valve actuator system with adoption of high-speed electro-hydraulic valve and single rod hydraulic cylinder is proposed to offset the disadvantages of present distributing mechanism based on camshaft drive.

High-speed solenoid valve has been widely used in aeroengine control systems whose performances are affected directly by the response speed of high-speed solenoid valve.

A circuitry of Electronic Drive Unit (EDU) based on power absorb principle used in high-speed solenoid valve is proposed.

For the problem of poor control precision of high-speed solenoid valves which are widely used in aero-engine control systems,a fuzzy-PID control system based on Soc single-chip is designed in this paper by using fuzzy self-tuning of PID parameters control algorithm.

It is a parallel connection system and this system uses the high-speed valve as a pilot valve to control the twin throttle which controls the pressure and the flux of the hydraulic control system.

The Design of High Speed Solenoid Valve in Diesel Electronic Fuel control System;

The application of PCL-818L data acquisition card in experimental system of a electro-hydraulic proportional speed-regulating valve is introduced in detail, and control software program design based on DLL under VB6.