Energy-efficient control of hydrostatic transmission of a front-end loader machine using machine learning algorithm and its sensitivity analysis

Abstract

This paper highlights development of 2-DOF and 3-DOF energy management controllers using a Machine Learning (ML) algorithm for closed-circuit hydrostatic transmission of Front-End Loader (FEL) machine. Objective of energy management controller, is to keep prime-mover, pump and hydro-motor in its efficient zone irrespective of variation of load-speed at drive end. Based on duty cycles of the transmission and sensitivity analysis of drive components, GPR algorithm shows better prediction (within 3%) of optimized commands of hydro-motor and pump displacements and their operating speeds, which results in its efficient operation. Validated model of hydraulic transmission components is integrated with verified model of IC engine to investigate saving in fuel consumption through designed controllers. Comparative study between 2-DOF and 3-DOF controlled transmission systems infers that fuel consumption for engine in 3-DOF controlled system decreases up to 34% of that of 2-DOF with a 20%–30% relative increase in overall drive efficiency.

Experimental Structural Safety Analysis of Front-End Loader of Agricultural Tractor

“…Such failure and deformation significantly affect the productivity and work efficiency as well as the safety of workers [6,7]. Therefore, the front-end loader needs to be designed to have a safe structure and its safety must be verified through tests [8,9].…”

Mechanical Characteristics of Distributed Electric Wheel Loader in Shoveling Condition

“…With enormous amount of WLs are working in the world, it makes sense to diminish energy consumption of WLs. Literature are mainly studied on the energy-saving control methods that are widely applied to WLs include load-sensitive hydraulic system [2]- [4], hydrostatic drive technology [5], [6], engine energy-saving technology [7], [8], and hybrid power technology [9]- [11]. As the research and utilization of electrification becomes a trend in area of vehicles [12], the research of electric wheel loaders (EWL) has been paid more attention on.…”