Abstract: A crane includes a control interface to receive an operating instruction defining a target position, and a controller to determine movements of crane components and to generate driving instructions to be applied to a system of hydraulic actuators. The controller estimates a pressure level of a required working pressure of a hydraulic pump of each of the hydraulic actuators for the determined movements, and compares the estimated pressure levels and identifies the hydraulic actuators as a high pressure function, or as a low pressure function, based on the comparisons. The controller determines a time period during a movement from a current position to a target position, in which only the hydraulic actuators identified as a high pressure function or as a low pressure function is/are activated, and generates driving instructions for the hydraulic actuators to perform the determined movements, including activation of the determined hydraulic actuators during the time period.

Abstract: A crane includes a control interface to receive an operating instruction defining a target position, and a controller to determine movements of crane components and to generate driving instructions to be applied to a system of hydraulic actuators. The controller estimates a pressure level of a required working pressure of a hydraulic pump of each of the hydraulic actuators for the determined movements, and compares the estimated pressure levels and identifies the hydraulic actuators as a high pressure function, or as a low pressure function, based on the comparisons. The controller determines a time period during a movement from a current position to a target position, in which only the hydraulic actuators identified as a high pressure function or as a low pressure function is/are activated, and generates driving instructions for the hydraulic actuators to perform the determined movements, including activation of the determined hydraulic actuators during the time period.

Abstract: A driver assistance system (2) for a vehicle (4) provided with a crane (6) for loading or unloading objects (8), the system comprises: a control unit (10) configured to generate a presentation signal (12) to be applied to a display unit (14), an object detecting device (16) configured to capture images of the vehicle and/or of the environment around the vehicle, and configured to generate an image data signal (18) comprising data representing captured images, and to apply said signal (18) to said control unit (10).

Abstract: A crane arranged to be mounted to a vehicle and including a crane controller. The crane controller includes a machine learning algorithm, including a neural network trained to calculate a movements of a crane components based on a received trajectory instruction. A supervisory controller is provided arranged to evaluate the calculated movements by comparing an accuracy measure to a predefined safety margin. The accuracy measure is defined by the difference between a crane tip position resulting from the calculated movements when moved from a current position, and a position of the crane tip calculated by the supervisory controller, based on the received trajectory instruction and on positions of individual joints of said crane boom system, when moved from the current position, and to generate an overruling operating instruction for a system of actuators, in response to the accuracy measure being larger than the predefined safety margin.

Abstract: A driver assistance system (2) for a vehicle (4) provided with a crane (6) for loading or unloading objects (8), the system comprises: a control unit (10) configured to generate a presentation signal (12) to be applied to a display unit (14), an object detecting device (16) configured to capture images of the vehicle and/or of the environment around the vehicle, and configured to generate an image data signal (18) comprising data representing captured images, and to apply said signal (18) to said control unit (10).

Abstract: The object of the present invention is to provide an inventive energy recovery method for a hydraulic system comprising a hydraulic cylinder (1), a pump (2), a tank (3), a supply conduit (4), a return conduit (5), and a hydraulic accumulator (7), the method comprises the steps of charging said hydraulic accumulator (7), and storing fluid in said hydraulic accumulator (7), wherein said energy recovery method comprises the step of directing fluid from said hydraulic accumulator (7) into an expanding chamber (8, 9) of said hydraulic cylinder (1) during an overrunning load condition.

Abstract: The object of the present invention is to provide an inventive energy recovery method for a hydraulic system comprising a hydraulic cylinder (1), a pump (2), a tank (3), a supply conduit (4), a return conduit (5), and a hydraulic accumulator (7), the method comprises the steps of charging said hydraulic accumulator (7), and storing fluid in said hydraulic accumulator (7), wherein said energy recovery method comprises the step of directing fluid from said hydraulic accumulator (7) into an expanding chamber (8, 9) of said hydraulic cylinder (1) during an overrunning load condition.

Abstract: A start/stop arrangement in a fluid system comprising a controllable pump unit for supplying fluid pressure to at least one implement; a prime mover connected to a transmission device arranged to drive the pump unit; wherein the pump unit is installed on an outgoing power take off and is arranged to supply fluid pressure to the implement fluid system, that the pump unit is arranged accumulate fluid pressure in the accumulator. The fluid system further comprises a controllable motor unit connected to a fluid accumulator; that fluid pressure from the accumulator is arranged to drive the motor unit; and that the motor unit is connected to the prime mover by an overrun clutch, wherein the motor unit is arranged to supply torque to and start the prime mover when at least one predetermined condition is fulfilled. The invention further relates to a method for controlling the start/stop arrangement.