The present disclosure relates to the field of vehicle technology and provides an energy recovery control method, a system, and a vehicle. The method is applied in a vehicle, and the vehicle comprises a drive motor and a battery electrically connected to the drive motor; a first energy recovery torque curve with respect to the drive motor is pre-configured in the vehicle, and the first energy recovery torque curve is used to indicate a correspondence relationship between vehicle speed and energy recovery torque of the drive motor. The present disclosure performs reduction on a first energy recovery torque curve by means of utilizing a reduction ratio, allowing energy recovery in accordance with a relatively low torque strength when a usable charge power of the battery is unable to satisfy a preset power requirement corresponding to the first energy recovery torque curve.

A vehicle battery system configured to appropriately control a battery installed in a vehicle includes a controller and a rechargeable battery installed in the vehicle in a replaceable manner, charged by an electric power generator, and supplies electric power to auxiliary equipment of the vehicle. The controller determines whether a first battery or a second battery with charging efficiency lower than the first battery is installed in the vehicle as the rechargeable battery and, when determining that the second battery is installed as the rechargeable battery, makes the maximum generated power voltage that is the maximum value of the generated power voltage of the electric power generator higher than when determining that the first battery is installed.

A power apparatus, power assembly, energy assembly or energy apparatus that stores and disperses energy, the power assembly including: (1) a first and second energy object that experiences movement so as to store kinetic energy in the energy object, the energy object including a magnet assembly through which electrons are driven resulting in electric output from the magnet assembly, and the electric output dependent on experienced EMF (electro-motive force) that is experienced by the magnet assembly. The power assembly can include a switch assembly adapted to perform switching to switch between a first arrangement in which the first positive output is connected to the second positive output, and a second arrangement in which the first positive output is connected to the first negative output, and such second arrangement provides increased energy output relative to the first arrangement. A flip assembly can be provided that performs flipping of output energy.

A vessel power supply system for a vessel including a propulsion device that includes an engine and a generator driven by the engine to generate electricity, includes a first battery that supplies power to the propulsion device, a second battery that supplies power to accessories of the vessel, a first open circuit voltage sensor that detects an open circuit voltage of the first battery, a second open circuit voltage sensor that detects an open circuit voltage of the second battery, and a switch that is turned on/off to open and close a current path between the first battery and the second battery.

Disclosed are a system and method for controlling a voltage. The system includes a battery voltage measurer configured to measure a voltage of a battery of a vehicle, a sensor driver configured to supply a voltage applied from the battery to various sensors included in the vehicle, and a controller configured to decrease or increase the voltage applied form the battery to secure a required voltage value required by the sensor driver.

A battery charging system for a hybrid electric powerplant can be configured to determine a maximum available charging power available from windmilling and/or excess thermal engine power available, and to use up to the maximum available charging power and/or the excess thermal engine power available to charge a battery. In certain embodiments, a control module can be configured to determine the maximum available charging power available from windmilling.

A permanent magnet synchronous generator control system includes a charging circuit connected between a vehicle generator winding and a battery, a controller connected with the charging circuit, and a current detection circuit for detecting a magnitude of charging current and a voltage feedback circuit for detecting a magnitude of charging voltage that are connected with the controller. The charging circuit includes a chopper circuit for chopping an AC voltage output by the vehicle generator winding and a rectifier circuit for rectifying the chopped AC voltage into a DC voltage for charging the battery. The controller is configured to control the charging circuit to adjust the magnitude of charging current or voltage based on the detection result from the current detection circuit or voltage feedback circuit, so as to maintain the stability of the charging voltage for the battery and obtain a constant power output.

Various systems and methods for controlling a maximum current threshold of a battery system within a vehicle are presented. The systems may include a battery module, one or more vehicle systems, a battery management system having a battery monitoring unit that monitors a current parameter, and a battery control system that receives the current parameter from the battery monitoring unit. The battery control system may be configured to identify a current event for the battery module, determine a duration of the current event, compare the duration of the current event to a plurality of time thresholds, determine the current parameter based on the duration of the current event, determine a maximum current parameter based on the duration of the current event and the current parameter, and control the one or more vehicle systems such that a current of the one or more batteries does not exceed the maximum current parameter.

A vessel power supply system for a vessel including a propulsion device that includes an engine and a generator driven by the engine to generate electricity, includes a first battery that supplies power to the propulsion device, a second battery that supplies power to accessories of the vessel, a first open circuit voltage sensor that detects an open circuit voltage of the first battery, a second open circuit voltage sensor that detects an open circuit voltage of the second battery, and a switch that is turned on/off to open and close a current path between the first battery and the second battery.

A marine AC generator system includes a marine generator driven by an internal combustion engine and configured to generate an AC current and a rectifier configured to rectify the AC current to provide a DC current. At least one battery is configured to receive and be charged by the DC current. A battery powered inverter is configured to be powered by the at least one battery and to generate a variable current output frequency such that an AC electrical power is provided to a load when the marine generator is not running.