Applications in development: Mobile Hydraulics

Artemis Digital Displacement® Technology is licenced to a major supplier of components and systems for the offroad vehicle market. Construction, agricultural, forestry, and forklifts are just some of the machine types which can benifit.

Digital Displacement® applied to mobile hydraulics adds new functionality
and much higher efficiency- at reduced system cost.

Mobile hydraulics applications highlight the following unique features of DD technology:

Unprecedented efficiency, especially at part load

Simply replacing existing load-sensing open circuit pumps with DDPs will lead to energy savings of at least 30% over typical offroad vehicle duty cycles. But in systems designed to take advantage of the unique properties of DDPs the savings can much greater. Studies on replacing conventional proportional valves and load-sensing axial pumps with Direct Displacement Control of loads show energy savings of up to 60%. This allows a massive reduction in or, possibly, elimination of cooling radiators.

Multiple independent services

Banks of Digital Displacement® Pumps (DDP) can stacked on a common shaft, and split into independently controllable services. This allows a single pump to supply propel, auxillaries, and dedicated work function services, all running at different flows and pressures, commanded by CANBUS.

Direct control of rams and motors without proportional valves

DDPs can change from idle to full flow and vice-versa in under 30ms. This high pump bandwidth means that in many applications proportional valves can be eliminated and the load can be controlled directly from a DDP service.

Precise, linear flow control with no hysteresis

Digital Displacement® pumps allow open loop position control of hydraulic actuators without the need for feedback sensors. DD adds robotic motion control to mobile hydraulics without a complicated and expensive feedback system.

Mechanically simple, manufacturable design

Modular, scalable construction reduces parts inventory allows mass customisation. Digital Displacement® Pumps put the the control functions into the software, not the hardware. Features such as programmable s-curve motions, pressure control loops, anti-stall and power limiting can all be incorporated in software.

Applications page | Automotive | Mobile Hydraulics | Renewable Energy | Synchronised Lifting