Digital Control of Wheel Loader Implement System Using Closed Center Valve and Variable Displacement Pump

Digital Control of Wheel Loader Implement System Using Closed Center Valve and Variable Displacement Pump

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In this research, the integrated control of closed center valves and variable displacement pump was implemented for the bucket hydraulic control system of a medium size wheel type loader (WTL). The results are applicable to any electrohydraulic (EH) control system application where variable displacement pump and closed center EH valve combination are used. The real time control of the EH system has been tested and compared to the current production machines using WTL Caterpillar model 950G.1 INTRODUCTION Among the three main types of actuation methods (pneumatic, hydraulic, and electric) hydraulic actuation is ... The delivery of the fluid to the cylinders is controlled by hydraulic valves. ... This requires hydraulic control system where joystick movement is treated as desired velocity command instead of 1anbsp;...


Title:Digital Control of Wheel Loader Implement System Using Closed Center Valve and Variable Displacement Pump
Author: Chenyao Chen
Publisher:ProQuest - 1999
ISBN-13:

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