Hybrid drive of earth moving machines ? the way to reduce the energy consumption of working processes

Summary. The issue of environmental safety, from the perspective of increasing consumption of hydrocarbon energy sources, is of particular relevance. In this regard the use of machines and equipment with high indicators of fuel efficiency and environmental safety as well as modernization of machines in service is one of the most effective means of improving the current fuel and energy and environmental situation. The strategy of developing hybrid drives for earthmoving machines on the example of the world's leading equipment manufacturer has been considered. The analysis of the structural performance of the power drive as a whole and its individual elements, interaction of power unit components at different operation modes, principles of control providing for reduction of heat consumption and emissions of harmful substances with exhaust gases has been carried out. The aim of the work is determining the necessary adjusting power for engines of earthmoving machines considering the use of pumped storage systems and systematization of energy consumption in their working cycle by developing a methodology and means for studying the machine energy system. A strategy for creating hybrid drives for earthmoving machines has been defined.