Is It Time for Digital Hydraulics?
نویسندگان
چکیده
This paper discusses the possibility to use low-cost on/off valves instead of servo valves even in demanding servo applications. Different on/off control techniques are first reviewed and analyzed. Then the basic principles of suggested Digital Hydraulics technology are introduced and some tracking control results are presented. Results show that energy efficient and high-quality position and velocity control is possible with simple and low-cost on/off valves. Thus, the Digital Hydraulics is potential alternative for traditional servo systems. Predicted cost level is also lower especially in water hydraulic applications. The challenges and targets for development are discussed and highlighted.
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