Current hydraulic systems do not exploit the potential of electrical systems to provide varying rates of revolution, nor their ability to distribute and recycle the available energy. If these benefits can be used, it will give better system efficiency, which in turn means that the required battery capacity in the vehicle is lower.
ElectrohydraulicMany different electrohydraulic systems have been proposed, but none of them has taken a comprehensive view of how, where and when the various system solutions are to be used to achieve optimal functionality in combination with best energy efficiency. Considering the needs of many OEMs within same project will result in a broader and deeper understanding of electrohydraulic systems and their potential to reduce energy consumption. It will be possible for the project to draw high-quality conclusions by validation of theoretical solutions in both simulated and laboratory environments.
E-pumpA satisfactory solution for an integrated solution with an electric motor and a hydraulic pump/motor has not been presented, but the need for new solutions for E-pumps for electrically operated mobile machine has become clear. The proposed pump has good noise properties, in combination with high efficiency and compactness. In addition, it has unique possibilities for integration with an electric motor. The design of the pump allows many different E-pump solutions to be created for different systems and operating conditions, and one, two or four-quadrant pumps can be built. This will require cross-functional development that involves discussion with OEMs to determine their requirements and expectations.
The result of the E-pump development will benefit all applications that use hydraulic systems, such as manufacturing facilities, forestry machines, trucks and aircraft.