Volvo Penta Patente

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),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.

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).

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).

A battery system (300) for providing multiple output voltage levels (VI, V2, V3). The battery 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 stop system (201) for a high power system (203, 303). The stop system (201) is arranged in a Hazardous Voltage Interlock Loop, HVIL, passing through at least a part of the high power system (203, 303). The stop system (201) is configured to trigger disconnection of at least part of the high power system based on a condition of a HVIL low power signal transmitted through the HVIL.

A battery system (300) having a middle bus line (ML), a positive bus line (PL) and a negative bus line (NL) is provided. The battery system (300) comprises: a battery module (310), a multilevel neutral point clamped inverter (320). One or more direct current to direct current converters (DC/DC) and two or more auxiliary loads (L1, L2, ...) are connected either between the positive and negative bus lines (PL, NL), or between the positive and middle bus lines (PL, ML), or between the negative and middle bus lines (NL, ML). The operation of the DC/DC converters is configurable to balance the loads of the battery module (310) and/or control charging/discharging of the battery module (310). The connections of the two or more auxiliary loads (L1, L2, ...) are configurable to balance the loads of the battery module (310).

A power converter (200) with common mode loop is provided. The common mode loop is formed in the power converter (200) by any one of the following connections: a connection (261) between a neutral terminal (N<F>) of the multi-phase filter (240) and the neutral terminal (Nb) of the battery pack; a connection (362) between a neutral terminal (N<F>) of the multi-phase filter (240) and the negative terminal (NT<b>) of the battery pack (210); a connection (463) between a neutral terminal (N<F>) of the multi-phase filter (240) and the positive terminal (PT<b>) of the battery pack (210); a first connection (564) between a first neutral terminal (N<F1>) of the multi-phase filter (240) and the negative terminal (NT<b>) of the battery pack (210) and a second connection (565) between a second neutral terminal (N<F2>) of the multi-phase filter (240) and the positive terminal (PT<b>) of the battery pack (210).

Present disclosure relates to an interface member for a cooling system for cooling at least one thermally managed component intended to form a part of a powertrain system, the interface member comprising a support mounting interface configured to be mounted to a support structure for supporting the interface member, a body portion provided with one or more internal integrated coolant channels for forming at least a portion of a cooling circuitry of the cooling system, a coolant connection interface in fluid communication with the one or more integrated coolant channel and configured to be releasably connected to one or more cooling system components of the cooling system connected to the cooling circuitry for coolant distribution between the one or more cooling system components and the cooling circuitry, and a component mounting interface for mounting of one or more component associated with the powertrain system.

The present disclosure relates to a marine propulsion unit for a marine vessel, comprising a power source for rotating a pitchable propeller around an axis, the pitchable propeller being connected with a first shaft and a second shaft, an adjustment device comprising a first part being connected with the first shaft, a second part being connected with the second shaft, and a movable part,wherein the movable part is configured to be moved between a first position and a second position so as to turn the first part and/or the second part thereby providing a phase shift between the first shaft and the second shaft for pitching and/or folding the pitchable propeller.

A control unit for managing power sources and energy storage in a hybrid power generation system, wherein the hybrid power generation system is configured to meet a power demand of one or more electrical loads, and comprises a primary power source comprising one or more fuel cells configured to convert hydrogen to electrical power, a secondary power source comprising a combustion engine and a generator configured to generate to convert fuel into electrical power, and an energy storage system configured to support the primary and secondary power sources, and wherein the control unit is configured to monitor the power demand of the one or more electrical loads, and upon detecting a spike in the power demand, connect the energy storage system to support at least one of the primary and secondary power sources.

The disclosure relates to a method for operating a dual fuel internal combustion engine (1), the dual fuel internal combustion engine (1) comprising:- a cylinder (2) and a piston (3), the cylinder and the piston at least partially defining a combustion chamber (7),- an air intake system (4) arranged to provide air into the combustion chamber (7),- a first fuel injector (5) arranged to inject a first fuel into the combustion chamber (7),- a second fuel injector (6) arranged to inject a second fuel in liquid phase into the air intake system (4), wherein the method comprises: injecting (S1) the second fuel in liquid phase into the air intake system (4) and injecting (S2) the first fuel into the combustion chamber (7). The disclosure also relates to a dual fuel internal combustion engine system (10) and a vehicle (100).

A modular harness system (100) for connecting a master electronic control module (10) to a plurality of electrical system components (12), the harness system (100) comprising: a main backbone section (5) connectable to the master electronic control module (10); an electrical and communication interface (50) connected to the main backbone section (5); a plurality of modular harness sections (20), each harness section (20) connecting to a respective electrical system component (12); an extension section (30) comprising an extension wire (32); and a connector section (40) configured to interconnect a preceding modular harness section (20-1) in series with a subsequent modular harness section (20-2), from among the plurality of modular harness sections (20), to relay data and/or supply electrical power via the extension wire (32).

The present disclosure relates to a marine propulsion unit, comprising at least one motor for rotating a pitchable propeller around an axis, the pitchable propeller being connected with a first shaft and a second shaft, the first shaft being rotated by a first power way and the second shaft being rotated by a second power way, wherein the first power way and the second power way are controllable independently of each other so that a first rotation speed (rpm) of the first shaft and a second rotation speed (rpm) of the second shaft can vary in relation to each other, wherein a coupling is arranged between the first shaft, the second shaft and the pitchable propeller for changing a pitch angle of the pitchable propeller when the first rotation speed and/or second rotation speed vary in relation to the other.

The present disclosure relates to a marine propulsion unit, comprising at least one motor for rotating a pitchable propeller around an axis, the pitchable propeller being connected with a first shaft and a second shaft, the first shaft being rotated by a first power way, the second shaft being rotated by a second power way, wherein the first power way and the second power way are controllable independently of each other so that a first rotation speed (rpm) of the first shaft and a second rotation speed (rpm) of the second shaft can vary.

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The disclosure relates to a marine propulsion control system for a marine vessel, comprising a drive unit being adapted to be connected with the marine vessel, the drive unit comprises an upper part being pivotable connected with the marine vessel and a lower part having one or more propellers providing a thrust force, the lower part is rotatable in relation to the upper part, an input unit configured to obtain an activation message indicative of an operation mode for the drive unit, a control unit being operatively connected with the drive unit and the input unit, the control unit is configured to control the drive unit on basis of the activation message obtained from the input unit, wherein the control unit, based on at least the activation message, is configured to control the drive unit within different predetermined operation modes, wherein one of the predetermined operation modes is a swim mode in which the control unit is configured to rotate the lower part of the drive unit so that the one or more propellers is/are facing forward in a position of minimum 90 degrees compared to a rearward facing position of the one or more propellers, wherein the control unit is configured to ensure no thrust force and/or rotation of the one or more propellers in the swim mode.

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A transom bracket (130) for mounting a marine drive unit (110) to the hull (120) of a marine vessel (100),the transom bracket (130) extending in a plane (P) spanned by a first axis (a₁) and by a second axis (a₂), where a third axis (a₃) is normal to the plane (P), and where a center line (440) of the transom bracket (130) extends in the plane (P) and parallel to the first axis (a₁),the transom bracket (130) comprising at least one drive unit support (450, 460) for holding the drive unit (110) in position,the transom bracket (130) comprising a first water conduit (410) and a second water conduit (420) integrated in the transom bracket (130), where the first water conduit (410) and the second water conduit (420) extend from respective upper apertures (411, 421) formed in an upper part (401) of the bracket (130) to respective lower apertures (412, 422) formed in a lower part (402) of the bracket (130), where the lower apertures (412, 422) are separated from each other by the center line (440).

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A transom bracket (130) for supporting a marine drive unit (110) on a hull (120) of a marine vessel (100),the transom bracket (130) extending in a plane (P) spanned by a first axis (a₁) and by a second axis (a₂), where a third axis (a₃) is normal to the plane (P),the transom bracket (130) comprising one or more apertures (411, 421, 470, 471) facing transversal to the plane (P), the one or more apertures (411, 421, 470, 471) being arranged to route media past the plane (P) to and from the marine drive unit (110), via a routing area (R) in the plane, where the routing area (R) extends over a routing area distance (d_R ) measured along the first axis (a₁),the transom bracket (130) comprising at least one fastening option array (480) extending over a translation distance (d_T ) measured along the first axis (a₁ ), where the fastening option array (480) is configured to allow offset of the transom bracket (130) relative to the hull (120) along the first axis (a₁) by the translation distance (d_T ),the transom bracket (130) comprising a sealing arrangement (920) configured to seal against the hull (120) in direction of the third axis (a₃), where the sealing arrangement (920) extends along the periphery of a sealing region (S) in the plane (P), where the sealing region (S) is a region in the plane (P) at least as large as to maintain seal against the hull during translation of the transom bracket (130) along the first axis (a₁) by the translation distance (d_T ).