A ship propulsion system provides a first power transmission device that transmits power from an internal combustion engine to a propeller, a second power transmission device that transmits power from an electric motor to a propeller and that is mounted to the hull so as to be able to turn up and down independently from the first power transmission device, an actuator for causing the second power transmission device to turn up and down, and a control device. The control device is configured so as to be able to select a first drive mode in which the internal combustion engine is driven and the electric motor is not driven, and a second drive mode in which the internal combustion engine is not driven and the electric motor is driven. When the first drive mode is selected, the actuator is operated so that the second power transmission device turns up.

A Hybrid Vessel Propulsion and Generation System diesel jet drive outboard and inboard motors, with an electrical generator attached to a prop shaft of the motors to generate electricity to power batteries. On large boats or ships with a gear change, the generator is mounted on the back of the gearbox and is attached to the prop shaft, with the generator being driven by rotation of the prop shaft and the drive of the gearbox. The system also incorporates electrically powered water thrusters and mechanical pressurised water turbines used for charging the batteries. The system also incorporates electric motors attached to propellers powered by electric batteries. Solar panels may be arranged in the port hole windows incorporating a housing, latch and lever arms to position them towards the sun.

A Hybrid Vessel Propulsion and Generation System diesel jet drive outboard and inboard motors, with an electrical generator attached to a prop shaft of the motors to generate electricity to power batteries. On large boats or ships with a gear change, the generator is mounted on the back of the gearbox and is attached to the prop shaft, with the generator being driven by rotation of the prop shaft and the drive of the gearbox. The system also incorporates electrically powered water thrusters and mechanical pressurised water turbines used for charging the batteries. The system also incorporates electric motors attached to propellers powered by electric batteries. Solar panels may be arranged in the port hole windows incorporating a housing, latch and lever arms to position them towards the sun.

A modular hybrid propulsion unit is disclosed that is mountable to a watercraft. According to an example, the modular hybrid propulsion unit includes a housing configured to fit within a complementary housing receiver on a topside of the watercraft, and a rotational output coupling configured to rotationally engage with a rotational input coupling for a propeller of the watercraft. The propulsion unit further includes an electric motor within the housing, the electric motor having a motor shaft connected to the rotational output coupling for providing an electrically powered rotational input to the rotational output coupling. The propulsion unit further includes a crank having one or more crank arms. The crank is connected to the rotational output coupling for providing a human powered rotational input to the rotational output coupling independent of the electrically powered rotational input by the electric motor.

A modular hybrid propulsion unit is disclosed that is mountable to a watercraft. According to an example, the modular hybrid propulsion unit includes a housing configured to fit within a complementary housing receiver on a topside of the watercraft, and a rotational output coupling configured to rotationally engage with a rotational input coupling for a propeller of the watercraft. The propulsion unit further includes an electric motor within the housing, the electric motor having a motor shaft connected to the rotational output coupling for providing an electrically powered rotational input to the rotational output coupling. The propulsion unit further includes a crank having one or more crank arms. The crank is connected to the rotational output coupling for providing a human powered rotational input to the rotational output coupling independent of the electrically powered rotational input by the electric motor.

A multi-engine powertrain control system apparatus and method for activating and engaging a second, third, fourth, or more engines into a powertrain of a vehicle, vessel, or powerhouse, while running, without interruption, as needed under changing conditions requiring more power, and disengaging and de-activating engines when not needed, in order to conserve energy. The invention further provides real-time sensing of powertrain conditions and external conditions, provides pre-set parameters with user override, provides automatic engagement and disengagement based on real-time conditions, and provides for continued operation in the event of an engine's failure.

A multi-engine powertrain control system apparatus and method for activating and engaging a second, third, fourth, or more engines into a powertrain of a vehicle, vessel, or powerhouse, while running, without interruption, as needed under changing conditions requiring more power, and disengaging and de-activating engines when not needed, in order to conserve energy. The invention further provides real-time sensing of powertrain conditions and external conditions, provides pre-set parameters with user override, provides automatic engagement and disengagement based on real-time conditions, and provides for continued operation in the event of an engine's failure.

The invention relates to a hybrid power system (1). System (1) has an internal combustion engine (2), a gear box (3) having an input (4) connectable to the engine and an output shaft (5) to drive a vehicle, a first power drive and take off (10) releasably connectable to the gear box input, a second power drive and take off (30) releasably connectable to the gear box output, at least one motor/generator (21,41) connected the first and/or second power drive and take off, a connecting clutch (50) to releasable connecting the first and second power drive and take off, and a battery (60) to power or be charged by the or each motor generator.

The invention relates to a hybrid power system (1). System (1) has an internal combustion engine (2), a gear box (3) having an input (4) connectable to the engine and an output shaft (5) to drive a vehicle, a first power drive and take off (10) releasably connectable to the gear box input, a second power drive and take off (30) releasably connectable to the gear box output, at least one motor/generator (21,41) connected the first and/or second power drive and take off, a connecting clutch (50) to releasable connecting the first and second power drive and take off, and a battery (60) to power or be charged by the or each motor generator.

A low-order vessel propulsion power prediction method may be performed to determine factors, including power demand parameters, used in configuring a propulsion system for a marine vessel. The low-order method may receive stability data and vessel operation profile data, in addition to computational fluid dynamics simulation results to determine predicted vessel power profiles. The predicted vessel power profiles may be used to configure a powertrain system model for the marine vessel.