Hydraulic systems can work with high efficiency, and the project is eager to preserve this. In combination with electric power supply to the pump, in particular in mobile applications, it is important that the combined unit, known as an “E-pump”, unites the advantages of electricity and hydraulic systems. This project is based on the suggestion to create an integrated component in which an electric motor and power-supply electronics are combined with a suitable hydraulic pump concept. The combined unit will have higher power density and efficiency, with a lower noise level.
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.
The result of the E-pump development will benefit all applications that use hydraulic systems, such as manufacturing facilities, forestry machines, trucks, and aircraft.
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.
Electrohydraulic
Many 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. In this project, multi-pump solutions are in focus which is a potential way to benefit of the electrification.E-pump
A 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.The result of the E-pump development will benefit all applications that use hydraulic systems, such as manufacturing facilities, forestry machines, trucks, and aircraft.
