A method for optimising the power of an electrified vehicle having at least one electrical energy accumulator, at least one electrical drive and at least one auxiliary unit, the electrical energy accumulator having a maximum discharge power and a continuous discharge power. The power available from the electrical energy accumulator is distributed intelligently in order to make vehicle operation which is acceptable to the driver of the electrified vehicle possible.

A method for optimising the power of an electrified vehicle having at least one electrical energy accumulator, at least one electrical drive and at least one auxiliary unit, the electrical energy accumulator having a maximum discharge power and a continuous discharge power. The power available from the electrical energy accumulator is distributed intelligently in order to make vehicle operation which is acceptable to the driver of the electrified vehicle possible.

This application relates to the technical field of electric vehicles, and in particular, to charging systems and methods. An example charging system includes: a low-voltage battery capable of supplying power to a low-voltage electrical device of a vehicle; a power battery module; a direct current-to-direct current (DC-DC) converter capable of receiving a voltage supplied by the power battery module in response to at least that a positive relay and a negative relay of the power battery module are closed, and converting the voltage into a charging voltage of the low-voltage battery to charge the low-voltage battery; and a DC-DC controller electrically connected to the low-voltage battery and capable of monitoring a voltage of the low-voltage battery in response to at least that the vehicle is in a dormant state.

This application relates to the technical field of electric vehicles, and in particular, to charging systems and methods. An example charging system includes: a low-voltage battery capable of supplying power to a low-voltage electrical device of a vehicle; a power battery module; a direct current-to-direct current (DC-DC) converter capable of receiving a voltage supplied by the power battery module in response to at least that a positive relay and a negative relay of the power battery module are closed, and converting the voltage into a charging voltage of the low-voltage battery to charge the low-voltage battery; and a DC-DC controller electrically connected to the low-voltage battery and capable of monitoring a voltage of the low-voltage battery in response to at least that the vehicle is in a dormant state.

A method for performance analysis and use management of a battery module is disclosed, wherein the battery module includes a multitude of interconnected battery cells and a battery management system with a plurality of dedicated analysis/control units (ACUs) that analyze performance of the battery module, the ACUs being assigned to individual battery cells and/or battery blocks of battery module. The method includes measuring current and voltage of one or more of an individual battery cell and a battery block; calculating a charge removal from the one or more of the individual battery cell and the battery block; calculating a loading charge of the one or more of the individual battery cell and the battery block; determining the remaining charge of the one or more of the individual battery cell and the battery block; and failure monitoring of the one or more of the individual battery cell and the battery block.

An electrical storage system includes a main battery, an auxiliary battery, a bidirectional DC-DC converter and a controller. The bidirectional DC-DC converter is provided between the auxiliary battery and a power supply path from the main battery to a driving motor. The bidirectional DC-DC converter steps down an output voltage from the power supply path to the auxiliary battery, and steps up an output voltage from the auxiliary battery to the power supply path. The controller controls charging and discharging of the auxiliary battery. The controller, when an allowable output power of the main battery decreases and an electric power becomes insufficient for a required vehicle output, supplies an electric power to the power supply path by discharging the auxiliary battery by using the bidirectional DC-DC converter. The controller, when an allowable input power of the main battery decreases and a regenerated electric power generated by the driving motor is not entirely charged into the main battery, charges part of the regenerated electric power into the auxiliary battery by using the bidirectional DC-DC converter.

An apparatus for controlling a driving mode of a hybrid vehicle and a method thereof are provided in which a specific cell, which constitutes a battery, is prevented from being overdischarged by adjusting a switching time point of a driving mode (an electric vehicle (EV) mode or a hybrid electric vehicle (HEV) mode) based on a cell voltage change of the battery mounted in the hybrid electric vehicle. The apparatus for controlling the driving mode of the hybrid vehicle includes a battery including a plurality of cells, a voltage sensor to measure voltages of the cells in the battery, and a controller to control a switching time point from the EV mode to the HEV mode based on the voltages of the cells in the battery, as measured by the voltage sensor.

A method controls a heating/air-conditioning component of a hybrid vehicle. In the event of undershooting a minimum state-of-charge of a drive battery, operation of the heating/air-conditioning component is enabled, provided that sufficient electric power is fed to the drive battery such that no further discharging of the drive battery occurs. A hybrid vehicle includes a control device which is appropriate for executing the method.

A power supply system for an electric vehicle that includes a battery pack, an inverter electrically coupled to the battery pack, and one or more switches disposed between the inverter and a motor of said electric vehicle. The inverter is operable, by operation of the one or more switches, in a first mode of operation to power a motor of the electric vehicle and in a second mode of operation to an entire load of the home up to a defined power limit of the battery pack.

A power supply system for an electric vehicle that includes a battery pack, an inverter electrically coupled to the battery pack, and one or more switches disposed between the inverter and a motor of said electric vehicle. The inverter is operable, by operation of the one or more switches, in a first mode of operation to power a motor of the electric vehicle and in a second mode of operation to an entire load of the home up to a defined power limit of the battery pack.