Study on energy-saving quantitative evaluation of hydraulic excavator

Abstract

Abstract The energy-saving of hydraulic excavators is evaluated by two significant indicators: operating efficiency (digging weight per unit time) and fuel consumption (volume of fuel consumed per unit time). These two indicators are only the final test results and cannot quantitatively evaluate the whole operation process of the excavator. In this paper, a complete set of experimental protocols is designed to quantify the energy-saving of the excavator by collecting its attitude data, fuel consumption data, and digging weight data in real-time. By restoring the excavator’s three-dimensional posture through the multi-body dynamics model, the posture corresponding to the energy efficiency of the excavator can be grasped very intuitively, which provides a research direction for optimizing the energy efficiency of the excavator.