Energy-Efficient Excavator Controls EPC and VBO Advantages Advantages of Electronic Positive Control EPC: Fuel savings of over 10% possible Fast machine response High dynamic system stability Optimized torque demands, especially for TIER 4 diesel engines Compatibility with existing Positive Control System Can be expanded to Positive Control with full EH valve control Advantages of Virtual Bleed Off VBO: Fuel savings of over 10% possible Good load sensitivity Gentle, soft control response High energy efficiency, no losses in open center Optimal matching of the hydraulic torque demand on TIER 4 diesel engine Expandable to VBO with full EH valve control