POWER SUPPLY UNIT, COMBINATION OF SUCH AN ENERGY SUPPLY UNIT WITH A FURTHER FUNCTION UNIT AND HEAVY GOODS VEHICLE

摘要

The invention relates to a power supply unit (16) which supplies hydraulic drive motors of a heavy goods vehicle (10) with hydraulic fluid, comprising a frame (28) with first connecting elements (20) for operationally fixed mechanical connection to the heavy goods vehicle (10) and second connecting elements (24) for operationally fixed mechanical connection to a further functional unit (18), a hydraulic pump (34) which is attached to the frame (28), can be driven by an assigned electric motor (32) and during operation feeds hydraulic fluid to drive the hydraulic drive motors, and a battery pack (30) which is attached to the frame (28) and supplies the electric motor (32) with electrical drive power, wherein the hydraulic pump (34) and electric motor (32) are configured in such a way that the hydraulic pump (34) can be operated as a hydraulic motor and the electric motor (32) can be operated as an electric generator.