Abstract—Today, the aged people are rapidly increasing and the number of children is decreasing in Japan. This social problem causes the demand of the care and welfare equipment to support a nursing and a self-reliance for the senior. For example, a power assist device for reducing the burden of the user has been researched and developed. The purpose of this study is to develop a small and light-weight pneumatic control valve and to apply it to the care and welfare equipment. In our previous study, the small-sized quasi-servo valve using two inexpensive on/off valves was developed and tested. The pressure control type quasi-servo valve was also proposed and tested by using the quasi-servo valve, a pressure sensor and an embedded controller. In this paper, the pressure control type quasi-servo valve is applied to a force control of the pneumatic cylinder, and its control performance is investigated.

Index Terms—quasi-servo valve, pneumatic cylinder, force control

Cite: Y. Moriwake, S. Dohta, T. Akagi, and S. Shimooka, "Application of Pressure Control Type Quasi-Servo Valve to Force Control System," Jounal of Automation and Control Engineering, Vol. 4, No. 3, pp. 209-212, June, 2016. doi: 10.18178/joace.4.3.209-212