A power system includes an engine; a sensor to determine an engine speed; and a transmission. The transmission includes an input element configured to receive the power from the engine as input torque; an output element configured to provide at least a portion the power from the engine as output…

A hydraulic motor includes a motor mechanism that rotates by hydraulic liquid pressure led from a hydraulic liquid pressure source. The hydraulic motor includes a casing that defines a casing chamber which accommodates the motor mechanism, a brake mechanism that brakes the rotation of the motor…

The gearbox assembly has a mechanical stepped gearbox (14) and a hydrostatic gearbox (3) that is coupled to the stepped gearbox, where the hydrostatic gearbox has two hydrostatic partial gearboxes (10,11) which are connected parallel to each other with the stepped gearbox. The partial gearboxes are…

A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller (90) of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic transmission, and calculates a value of load…