Hydraulic system, work vehicle and method

A hydraulic system, a work vehicle, and a method for generating hydraulic power to a hydraulic system of a work vehicle. The hydraulic system (Hs) comprises a fixed displacement hydraulic pump (Hp) and a speed and torque controlled electric motor (M) for driving the hydraulic pump (Hp). An electric controller (Ec) is arranged to adjust the speed of the electric motor, thereby adjusting the flow and pressure of the hydraulic fluid generated in the system. Furthermore, there is a bypass flow channel (By) comprising a throttling element (Te) for directing a limited continuous discharge fluid flow from the system. 一种液压系统、工作车辆以及用于向工作车辆的液压系统产生液压动力的方法。所述液压系统（Hs）包括固定排量液压泵（Hp）和用于驱动所述液压泵（Hp）的速度和转矩受控的电马达（M）。电控制器（Ec）被布置用以调节所述电马达的速度，从而调节所述系统中产生的液压流体的流量和压力。此外，存在包括节流元件（Te）的旁通流动通道（By），用于引导来自所述系统的受限的连续排放流体流。