An electric vehicle charging system in described that includes an electrical energy source that includes a base with a plurality of electrical signal connectors to receive a first electrical signal, a second electrical signal and a ground signal, an adapter having a plurality of outlet connectors configured to electrically connect to at least some of the plurality of electrical signal connectors, wherein the adapter can be placed in a plurality of positions on the base to correctly orient the base to any of plurality of outlet connector orientations, and a locking ring adapted to engage the base to removable fix the adapter to the base in one of the four positions. The system can include a thermistor assembly to sense thermal energy in the source and if thermal energy exceeds a threshold to output a signal. The system can include a charging cord for an electric vehicle having a proper orientation when engaging the source, wherein the adapter is in a correct orientation with the base being in the proper orientation when connected to the socket-outlet.

The invention provides an equalizing device for a vehicle soft-packed battery and an equalizing method for the soft-packed battery. According to the equalizing method for the vehicle soft-packed battery, a battery to be equalized is connected to a parallel equalization circuit by using an equalizing device for a vehicle soft-packed battery, battery cells to be equalized are sequentially equalized by adopting a first-in first-out sequence, and the SOC of each cell equalized is maintained within a preset range; and the number of the cells entering the equalizing device for the vehicle soft-packed battery is N, and the equalizing time of the battery cells is T. The equalizing device for the vehicle soft-packed battery comprises a holder clamping type or a copper sheet compressing type. On the premise of remarkably improving the equalizing efficiency of the battery cell, the invention can reduce the space and cost required by the equalizing operation, and ensure that the SOC difference of the equalized battery cell is maintained within a certain range, and it is a low-cost high-efficiency battery cell equalizing device. The invention is suitable for equalizing a large number of battery cells on a production line.

The present disclosure relates to a dual battery system (1) comprising a first battery (B1) and a second battery (B2), for balancing charge level of the first battery and the second battery, the dual battery system being adapted for powering propulsion of an electric vehicle (3) comprising a first electric motor (E1) coupled in driving relationship with one or more rear wheels of the electric vehicle and a second electric motor (E2) coupled in driving relationship with one or more front wheels of the electric vehicle. The first battery is adapted to provide electric power for driving the first electric motor and the second battery is adapted to provide electric power for driving the second electric motor. The dual battery system obtains (100) at least one of data or information of a predetermined and/or imminent charging event of the electric vehicle. The dual battery system furthermore obtains (200) at least one of data or information of charge level of the first battery and second battery respectively. Moreover the dual battery system selects (300), when the charge level of the first battery and the second battery are unbalanced, a driving scenario which comprises charging and/or discharging of at least one of the first battery and the second battery, the driving scenario balancing the charge level of the first battery and the second battery prior to arriving at the predetermined and/or imminent charging event. The disclosure also relates to a dual battery system in accordance with the foregoing, and an electric vehicle comprising such a dual battery system.

A method for charging at least one electrical energy storage device of a motor vehicle includes (i) acquiring at least one piece of information regarding a charging point selected for the charging process; and (ii) limiting the maximum noise which the motor vehicle or the at least one electrical energy storage device may emit during the charging process, using the at least one piece of information.

A vehicle powertrain includes an electric machine, an inverter including an IGBT having a gate configured to flow current through a phase of the electric machine, and a gate driver. The gate driver is configured to supply power onto the gate via a voltage regulated source, and in response to a collector current of the IGBT exceeding a previous steady state current through the phase, transition to a current regulated source to drive the gate. The gate driver may be configured to delay the transition by a predetermined time that is based on a difference between the previous steady state current and a reverse recovery peak current.

A computer manages a plurality of resources operable as a balancing power for an external power supply. Each of the resources includes a power storage device chargeable with electric power from the external power supply. The computer executes resource selection for selecting a resource to be operated as the balancing power from among the resources in response to a charging request for the balancing power. The computer determines chargeable periods of the resources prior to the resource selection. The computer selects a resource having a short chargeable period with priority in the resource selection in response to a first charging request, and selects a resource having a long chargeable period with priority in the resource selection in response to a second charging request. A balancing period requested in the second charging request is longer than a balancing period requested in the first charging request.

A vehicle includes a power reception unit receiving power from outside of the vehicle, a power storage device, and a control device performing control for charging the power storage device in accordance with a schedule set for timer charge. In the case where a charge time band of a first schedule defining a charge start time and a charge end time and a charge time band of a second schedule defining a charge start time and a charge end time overlap each other, the control device starts charge at the earlier one of the charge start time of the first schedule and the charge start time of the second schedule when the charge start times are different, and ends charge at the later one of the charge end time of the first schedule and the charge end time of the second schedule when the charge end times are different.

A method for operating an energy storage system, which includes at least one energy store with a plurality of cells and is designed to supply an electric drive system of a vehicle is provided. The method includes identifying a reference cell from among the cells, and carrying out a first symmetrization procedure for the cells at a first point in time, at which the reference cell has a first reference charge state. The method also includes carrying out a second symmetrization procedure for the cells, if the following conditions a) and b) are met at a second point in time following the first point in time: a) the voltage difference between the voltage of the cell with the lowest voltage and the voltage of the cell with the highest voltage is greater than or equal to a specified voltage difference; and b) the reference state of charge of the reference cell at the second point in time lies within a specified state of charge range, the state of charge range being determined in such a way that it includes the first reference state of charge.

This disclosure describes vehicle systems and methods for controlling charging of an auxiliary battery of an electrified vehicle. Exemplary charging methods align the charge management of an auxiliary battery to occur only during low cost charging windows.

A method for determining a battery state of charge (SOC) includes: determining a basic SOC of a battery of a terminal apparatus at a current time; determining rated and maximum power consumption parameters of the terminal apparatus in a time period between the current time and a reference time previous thereto; determining a reference SOC at the current time based on the rated power consumption parameter and an actual SOC at the reference time; determining a minimum SOC at the current time based on the maximum power consumption parameter and the actual SOC at the reference time; and judging whether the basic SOC is between the minimum SOC and the actual SOC at the reference time or not, and if yes, determining the basic SOC as an actual SOC at the current time, and if not, determining the actual SOC at the current time based on the reference and basic SOC.