Volvo Penta

A method, device, and system for estimating impedance of a battery set associated with a battery energy storage system (BESS) are disclosed. The method may include, and the device or system, or both, may be configured for obtaining an AC signal that comprises an odd harmonic of an operating frequency of a system coupled with the BESS, injecting the AC signal into a node of the battery set, and estimating an AC impedance of the battery set based on a response of the battery set to the injected AC signal. The injected harmonic may be a third harmonic of a system coupled with the BESS, such as a utility system.

A control device for an energy storage system (ESS) system comprising an ESS and a battery management system (BMS), and a method for controlling the ESS system are provided. The method comprises obtaining an accuracy value indicative of an accuracy of a state of charge (SoC) of the ESS, and, in response to the accuracy value being below a SoC accuracy threshold, a next time the ESS is to be charged or discharged, instructing the ESS to be charged to a full charge level or to be fully discharged, and initiating a SoC calibration of the ESS. The accuracy value may be determined based on one or more SoC parameters comprising an internal resistance, a cell voltage delta, a cell voltage, a rate of change of the cell voltage delta, a charged/discharged capacity in a current cycle, a cycle start Open Circuit Voltage (OCV), a cycle end OCV of the ESS, and an operating time since a last SoC calibration of the ESS.

A lever control system (10) for a marine vessel (1), comprising: a base module (20) comprising a first wireless communication unit (22); and a lever module (30) connected to the base module (20) and rotationally movable with respect to the base module (20), the lever module (30) comprising a second wireless communication unit (32), wherein the first and second wireless communication units (22, 32) are configured for bidirectional data communication, and wherein the first wireless communication unit (22) is configured to supply power to the lever module (30) via the second wireless communication unit (32).

The present disclosure relates to a lanyard safety device for a marine helm station, comprising a base part comprising a socket, the socket having a first end, a second end and a housing extending between the first end and the second end, a circumferential inner groove is arranged in the housing, a mechanical fastening mechanism is arranged in the inner groove, a first magnet being arranged at the second end, and a plug part configured to be attached to the socket of the base part, the plug part comprising a projection protruding from a plug head, the projection comprises a circumferential outer groove, a second magnet arranged within the projection, wherein the plug part is releasable maintained in the base part by a magnetic fastening between the first magnet and the second magnet and that the mechanical fastening mechanism is attached to the outer groove, wherein the magnetic fastening doubles as a proximity sensor.

The present disclosure relates to a POD drive unit (1) for a marine vessel (100), comprising a housing (2), an axial flux motor (3) connected with a first shaft (4) for rotating a pitchable propeller (5), a second shaft (6) arranged concentric within the first shaft (4), the second shaft (6) being movable independently of the first shaft (4), the second shaft (6) having a first end (7) having a connection part (8) and a second end (9), an adjustment device (20) comprising a first part (21) being connected with the first shaft (4), a second part (22) being connected with the connection part (8), and a movable part (23), wherein the movable part (23) is configured to be moved between a first position and a second position so as to turn the first part (21) and/or the second part (22) thereby providing a phase shift between the first shaft (4) and the second shaft (6) for pitching and/or folding the pitchable propeller (5).

The present disclosure relates to a POD drive unit (1) for a marine vessel (100), comprising a housing (2),a first axial flux motor (3) connected with a first shaft (4) so as to rotate with a first rotation speed, a second axial flux motor (5) connected with a second shaft (6) so as to rotate with a second rotation speed, the first and second axial flux motors (3, 5) being arranged inside the housing (2), wherein the first shaft (4) and the second shaft are connected with a pitchable propeller (7), wherein a coupling (8) is arranged between the first shaft (4), the second shaft (6) and the pitchable propeller (7) for changing a pitch angle of the pitchable propeller (7) when the first rotation speed and/or second rotation speed vary in relation to the other.

A power system (200, 300) comprises at least one battery pack (210) comprising at least one battery cell, a DC link capacitor (220), a DC/AC converter (230), a DC/DC converter (240). The power system (200, 300) is configured to pre-charge the DC link capacitor (220) to a desired DC link voltage level by the DC/DC converter (240) or by the DC/AC converter (230).

A power system (300) for providing multiple output voltage levels (V1, V2, V3). The power system (300) comprises at least one battery pack (310) and a direct current to direct current (DC/DC) converter (320). The first voltage level (V1) is the DC/DC converter (320) output voltage level, the second voltage level (V2) is the battery pack (310) output voltage level, and the third voltage level (V3) is a sum of the battery pack (310) output voltage and DC/DC converter (320) output voltage.

A computer system (100; 700) comprising processing circuitry (102; 702) configured to: obtain environment data (20) and monitor a snap-in docking distance (40) in relation to a fixed structure (10) based on the environment data (20); in response to the marine vessel (1) being outside the distance (40): control movement (22) of the marine vessel (1) based on a maneuvering request (24) and/or the environment data (20); and in response to the marine vessel (1) being within the distance (40): control the marine vessel (1) to move into physical engagement with the fixed structure (10); obtain force sensing data (25) indicating an engagement pressure between the marine vessel (1) and the fixed structure (10); and regulate a thrust force (60) in a direction towards said the fixed structure (10) based on said force sensing data (25) to control a desired engagement pressure.

The present disclosure relates to steering assist system (1) for a marine vessel (75). The system comprising a steering control unit (15) configured for receiving an operator steering command via a steering device (10). The steering control unit (15) is configured to provide feedback (50) to an operator via the steering device (10) in response to a control signal (CS) and a positioning system (30) configured to determine a location of the marine vessel (75). The system comprising a processing circuitry configured to store sea-chart data indicating one or more hazardous location areas (6). The system is configured to determine whether the location of the marine vessel (75) in relation to the one or more hazardous location areas (6) satisfies a predetermined hazard criterion, and in accordance with a determination that the hazard criterion is satisfied, transmit a control signal (CS) to the steering control unit (15). The steering control unit (15) is, upon receipt of the control signal, configured to provide feedback (50) to an operator via the steering device (10).