고부하 하이브리드 시스템의 연료 소모량 해석 시뮬레이터 개발

다국어 초록 (Multilingual Abstract)

Hybrid system, which has been successfully used in vehicles, is introduced to conventional hydraulic excavators in these days. The purpose of this research is to evaluate the effect of hybridization using optimal theory (Dynamic Programming), when hydraulic swing motor of conventional excavator is replaced by electric motor. And also, on the analysis results, we deduce basic control logic about power distribution and apply it to the simulation program of hybrid excavator. We introduce two structures of hybrid excavators, and the best fuel consumption is solved from Dynamic Programming, which guarantees the minimum fuel consumption. And then, to apply control logic based on the analysis results, we develop the forward simulator program using AMESim and Matlab Simulink.