A battery pack including: a battery including a battery cell; a temperature sensor for detecting a temperature of the battery; a cell voltage measuring unit for measuring a cell voltage of the battery cell and generating cell voltage data including a cell voltage value; a temperature measuring unit coupled to the temperature sensor, the temperature measuring unit being for generating temperature data including a temperature value corresponding to the temperature of the battery detected by the temperature sensor; and a control unit for determining a maximum charging current value (MCCV) of a charging current for charging the battery based on the cell voltage data and the temperature data. The control unit is for transmitting the MCCV to a charging apparatus for supplying the charging current to the battery pack. The charging apparatus is for controlling the charging current supplied to the battery pack to have a value below the MCCV.

Battery pack, energy storage system including battery pack, and method of charging battery pack

An apparatus for estimating a condition of a battery includes a mode identifying unit configured to identify a usage mode of the battery during a period of time and its corresponding attenuation curve, according to recorded data on battery usage, stored usage modes of the battery and attenuation curves corresponding to the various usage modes, the attenuation curve representing a change of a fully charged capacity of the battery with battery usage; and a condition estimating unit configured to calculate battery degradation according to the recorded data, the identified usage mode and its corresponding attenuation curve, the degradation representing a quantity of the fully charged capacity of the battery that is reduced over the battery usage. The condition of the battery is estimated so as to rationally judge the residual value of the battery in operation.

Estimating condition of battery, related system and vehicle

A power management system is disclosed for providing an indication of the required available capacity (RAC) available from a backup battery unit (BBU) for backup or peak loading as required by a critical DC load, such as a computer bus. The power management system is configured to repeatedly determine the gross remaining capacity of the backup battery unit (BBU). The system processes this information and other measured or known battery parameters to determine the required available capacity (RAC). The RAC is based upon the required capacity of the critical load to which the BBU is connected. In general, the RAC is the difference between the gross remaining capacity of the battery at a given point in time and the required capacity of the critical load. In accordance with an important feature of the power management system, an indication of the RAC is provided. This indication can be used to indicate that the battery needs to be replaced or that the battery requires service and might indicate that the battery needs to be charged, needs to be warmed up, cooled down, etc.

Required Available Capacity Indication for Battery Backup Unit

A method for increasing workable power output and run time duration of a battery backup system is disclosed. A plurality of battery groups is provided. A microprocessor electrically connects the power output of a first battery group and a second battery group to a UPS. The microprocessor monitors the output voltage of the first and second battery groups. When the monitored output voltage of the first and second battery group falls below a predetermined level, the microprocessor electrically disconnects from the UPS the first battery group and electrically connects to the UPS the power output of another of the plurality of battery groups. The first battery group is configured to be re-connectable to the UPS after a time period equal to or greater than necessary to permit the output voltage of the first battery group to recover to about its nominal voltage rating.

Data center battery enhancement method and system

The invention provides a method for judging the health degree of batteries. The method includes the first step of obtaining the voltage of battery cells in a battery pack at the terminal stage of charging in an online real-time mode; the second step of calculating the serial numbers of the first group of battery cells with the highest voltage in an online real-time mode and storing the serial numbers; the third step of calculating the serial numbers of the second group of battery cells with the lowest voltage at the current in an online real-time mode when the voltage of certain battery cells is smaller than a voltage threshold value at the terminal stage of discharging; the fourth step of comparing the stored serial numbers of the first group of battery cells and the serial numbers of the second group of battery cells, and determining the battery cells with the same serial numbers in the serial numbers of the first group of battery cells and the serial numbers of the second group of battery cells to be the battery cells with the smallest capacity relative to other battery cells. According to the method, the online dynamic judging of the health degree of the batteries when a vehicle runs can be achieved, early warning can be carried out when the health degree of the batteries is too low, the overuse of the batteries is avoided, and the batteries can be used safely and reliably.

Method for judging health degree of batteries

An accumulator control device includes a first electrical connection configured to connect the accumulator control device to a local accumulator. A second electrical connection is connected to the first electrical connection and configured to connect to a remote auxiliary electrical power supply device. A control unit is configured to measure at least one of a parameter of the accumulator and an environmental parameter and to transmit at least one of the at least one measured parameter and a value calculated using the at least one measured parameter to the remote auxiliary electrical power supply device via a communication interface.

Accumulator control device and method and system for auxiliary electrical power supply

Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Uberwachen der maximal verfugbaren Kapazitat einer Batterie sowie eine unterbrechungsfreie Stromversorgung (30), die eine Prognose der aktuellen Laufzeit einer Batterie (110) ermoglichen. Hierzu wird ein Verfahren zur Verfugung gestellt, nach dem zunachst eine Mehrzahl von verschiedenen Entladeschlussspannungswerten bereitgestellt wird. Nunmehr wird die Batterie (110) entladen, und der Entladeschlussspannungswert ermittelt, auf den die Batterie entladen worden ist. Anschliesend wird der Zahlerstand des Zahlers (120, 130) inkrementiert, welcher dem ermittelten Entladeschlussspannungswert zugeordnet ist. Fur jeden Entladevorgang werden diese Schritte wiederholt. Nunmehr wird der Zahlerstand jedes Zahlers (120, 130) ausgelesen und ein erster Faktor in Abhangigkeit von den ausgelesenen Zahlerstanden, welcher ein Mas fur die Abnahme der maximal verfugbaren Batteriekapazitat darstellt, ermittelt.

Method and apparatus for monitoring the maximum available capacity of a battery

Um die Kontrolle der Ladung und/oder Entladung der in einer elektrischen Hilfsversorgung verwendeten Akkumulatoren zu verbessern, sieht die Erfindung eine Akkumulator-Kontrollvorrichtung (20) zum Anschliesen an eine entfernte elektrische Hilfsversorgungsvorrichtung (10) vor, welche eine Kontrolleinheit (210) zum Messen und Auswerten von Akkumulatorparametern und eine Kommunikationsschnittstelle (220) zum Verbinden der Kontrolleinheit (210) mit der entfernten elektrischen Hilfsversorgungsvorrichtung (30) umfasst, wobei die Kontrolleinheit (210) dazu ausgebildet ist, gemessene Parameterwerte zu der Hilfsversorgungsvorrichtung (30) zu ubertragen. In order to improve the control of the charge and / or discharge of the accumulators used in an electrical auxiliary power supply, the invention provides a battery control device (20) for connecting to a remote electric supply device (10) in front of which and a control unit (210) for measuring evaluating Akkumulatorparametern and a communication interface (220) for connecting the control unit (210) with the remote auxiliary electric supply device (30), wherein the control unit (210) is adapted to transmit measured parameter values ​​to the auxiliary supply apparatus (30). Die Erfindung sieht ferner ein System zur elektrischen Hilfsversorgung sowie ein Verfahren zum Kontrollieren eines solchen Systems vor. The invention further provides a system for auxiliary electric supply as well as a method for controlling such a system.

Accumulator control device and method and system for electric auxiliary supply

Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Uberwachen der maximal verfugbaren Kapazitat einer Batterie sowie eine unterbrechungsfreie Stromversorgung (30), die eine Prognose der aktuellen Laufzeit einer Batterie (110) ermoglichen. The invention relates to a method and an apparatus for monitoring the maximum available capacity of a battery, and an uninterruptible power supply (30), which allow a forecast for the current runtime of a battery (110). Hierzu wird ein Verfahren zur Verfugung gestellt, nach dem zunachst eine Mehrzahl von verschiedenen Wertebereichen der Entladeschlussspannung bereitgestellt wird. For this purpose, a method is provided, after the first providing a plurality of different ranges of values ​​of the discharge voltage. Nunmehr wird der Batterie (110) Strom entnommen, und der Entladeschlussspannungswert ermittelt, auf den die Batterie gelangt. Now, the battery (110) is removed from power, and determines the Entladeschlussspannungswert to which arrives the battery. Das Auftreten der Entladungsschlussspannungswerte wird hinsichtlich der Wertbereiche gezahlt (16,17, Zahler 120,130). The occurrence of the discharge circuit voltage values ​​is counted in terms of value ranges (16,17, 120,130 meters). Fur jeden Entladevorgang werden diese Schritte wiederholt. For each unloading these steps are repeated. Nunmehr wird der Zahlerstand jedes Zahlers (120,130) ausgelesen und ein erster Faktor in Abhangigkeit von den ausgelesenen Zahlerstanden, welcher ein Mas fur die Abnahme der maximal verfugbaren Batteriekapazitat darstellt, ermittelt (17-2). Now the count of each counter (120,130) is read and a first factor depending on the read-out meter readings, which is a measure of the decrease in the maximum available battery capacity, determined (17-2).

Method and device for monitoring the maximum available capacity of a battery

Um die Kontrolle der Ladung und/oder Entladung der in einer elektrischen Hilfsversorgung verwendeten Akkumulatoren zu verbessern, sieht die Erfindung eine Akkumulator-Kontrollvorrichtung (20) zum Anschliesen an eine entfernte elektrische Hilfsversorgungsvorrichtung (10) vor, welche eine Kontrolleinheit (210) zum Messen und Auswerten von Akkumulatorparametern und eine Kommunikationsschnittstelle (220) zum Verbinden der Kontrolleinheit (210) mit der entfernten elektrischen Hilfsversorgungsvorrichtung (30) umfasst, wobei die Kontrolleinheit (210) dazu ausgebildet ist, gemessene Parameterwerte zu der Hilfsversorgungsvorrichtung (30) zu ubertragen. Die Erfindung sieht ferner ein System zur elektrischen Hilfsversorgung sowie ein Verfahren zum Kontrollieren eines solchen Systems vor.

Mike Wattenberg

Papers

Accumulator control device and method and system for auxiliary electrical power supply

Method and apparatus for monitoring the maximum available capacity of a battery

Accumulator control device and method and system for electric auxiliary supply

Method and device for monitoring the maximum available capacity of a battery

Akkumulator-Kontrollvorrichtung, sowie Verfahren und System zur elektrischen Hilfsversorgung