摘要:
The present invention relates to an electric storage unit group, a charger, an electronic device, an electric vehicle, a method for charging the electric storage unit, a method for discharging the electric storage unit group, a method for supplying and receiving power, and a method for determining a charging/discharging route in the electric storage unit group, which can provide a method for charging the electric storage unit group in which a plurality of electric storage units are connected in a desired form. The method for charging the electric storage unit group is a method for charging a rechargeable battery cell in an electric storage unit group in which a plurality of electric storage units 11 having rechargeable battery cells are linearly or reticulately connected. At an upstream side of the electric storage unit group, the electric storage unit group is connected to a power supply 12 for charging the electric storage units. The method includes a charging process of, when a rechargeable battery cell constituting a single electric storage unit is fully charged, stopping charging the single electric storage unit, and charging an electric storage unit connected to a more downstream side than the single electric storage unit through the single electric storage unit.
摘要:
A 12 volt automotive battery system includes a first battery directly coupled to an electrical system, in which the first battery includes a first battery chemistry, and a second battery coupled in parallel with the first battery and directly coupled to the electrical system, in which the second battery includes a second battery chemistry with a higher coulombic efficiency than the first battery chemistry. The first battery and the second battery are non-voltage matched such that a voltage range of the second battery is higher than a voltage range of the first battery. The first battery steers power generated during regenerative braking to the second battery using internal resistance of the first battery to enable the second battery to capture a majority of the power generated during regenerative braking, and the second battery provides power to the electrical system due to the higher voltage range of the second battery when the second battery has a positive state of charge.
摘要:
A power system architecture for a vehicle includes a source management unit (110) having at least a generator (112), a first stored energy component (114), and a second stored energy component (116). A high voltage DC bus (122) connects a high voltage load to the source management unit (110). At least one low voltage DC bus (132) connects at least one low voltage DC load to the source management unit (110). The source management unit (110) includes a plurality of multi-functional power modules (202) configured such that the source management unit (110) includes a multi-level active rectifier connecting the generator to a multi-level DC bus, a first multi-level multi-function converter connecting the first stored energy component to the multi-level active rectifier, a second multi-level multi-function converter (560) connecting the second stored energy component to a multi-level isolated DC bus, and an isolated multi-level DC-DC converter (540) connecting the multi-level DC bus to the multi-level isolated DC bus.
摘要:
Method for charge management of units cells of a plurality of batteries interconnected with one another, the method comprising the steps consisting of: - measuring a voltage across the terminals of each unit cell of each of the plurality of batteries, - comparing the measurements of each unit cell with one another in order to determine a lowest voltage of all the unit cells of the plurality of batteries, - equalising the voltages of the unit cells for which the voltage is greater than the lowest voltage, taking as a target the lowest voltage so as to reduce a variation between the voltage of each unit cell and the lowest measured voltage, wherein the step consisting of equalising the voltages of the unit cells having a voltage greater than the lowest voltage is preceded by a step consisting of disconnecting from the other batteries at least one battery comprising a unit cell for which the voltage is to be equalised.
摘要:
The invention provides for a high occupancy or heavy-duty vehicle with a battery propulsion power source, which may include lithium titanate batteries. The vehicle may be all-battery or may be a hybrid, and may have a composite body. The vehicle battery system may be housed within the floor of the vehicle and may have different groupings and arrangements.
摘要:
In a traveling mode for controlling traveling of a hybrid vehicle to maintain a charge amount (SOC) of a power storage device of the hybrid vehicle to fall within a predetermined control range, when a malfunction associated with the power storage device 10 takes place, a control center value SOCr# defining the control range is set higher than a control center value SOCr employed in a normal state and set at a value near a management lower limit value of the SOC. Then, it is permitted to charge/discharge the power storage device. In this way, upon occurrence of a malfunction of a level that does not require immediate interruption of the charging/discharging of the power storage device, a vehicle operation can be continued using the power storage device while protecting the power storage device.
摘要:
A power transmission system for wirelessly supplying power to a load comprising a transmitter inductor, a first switch coupled between a voltage source and the transmitter inductor and controlled to generate a varying current through the transmitter inductor, a receiver inductor magnetically coupled to the transmitter inductor, a voltage regulator receiving power from the receiver inductor to generate a regulator output voltage, a load coupled to an output of the voltage regulator, wherein power in the transmitter inductor is wirelessly coupled to the receiver inductor for being converted to a regulated voltage by the regulator for driving the load, a peak voltage detector coupled to detect a peak voltage on the transmitter inductor, wherein a peak voltage on the transmitter inductor is affected by an ability of the voltage regulator to achieve regulation for driving the load and a controller for controlling a peak current through the transmitter inductor, the controller being controlled to modulate the peak current through the transmitter inductor so as to modulate a peak current through the receiver inductor, wherein the peak voltage on the transmitter inductor increases during a time when the voltage regulator is able to achieve regulation, wherein the controller is configured to terminate modulating the peak current through the transmitter inductor, based on a change in the peak voltage, so that the voltage regulator is able to achieve regulation.
摘要:
The invention relates to an electronic device and a method for an at least partially electrically driven vehicle (electric or hybrid vehicle), which vehicle has an electrical energy store, which is provided for driving the vehicle and comprises energy store cells connected in series, and a voltage transformer for supplying at least one further electrical load of the vehicle, which voltage transformer is coupled to the energy store. The device is designed to supply at least one of the further electrical loads of the vehicle with current from a number of energy store cells of the electrical energy store connected in series that is less than the maximum number of energy store cells of the energy store connected in series in the case in which a maximum current for the at least one further electrical load exceeds the maximum current available from the voltage transformer. The invention further relates to at least partially electrically driven vehicles that comprise a device of the type above or are suitable for performing a corresponding method.