US 7,411,315 B2Granted

Battery communication system

AssigneeAmerican Power Conversion Corporation

InventorsPeter A. Gottlieb, Rodger B. Dowdell, Jr.

Life of this patent

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Abstract

An uninterrupted power supply (“UPS”) system is disclosed which uses a battery communication system to communicate to a UPS processor information concerning the status of a battery pack in an array of parallel coupled battery packs. The battery packs provide back-up power for the UPS system. Information about the battery packs is collected by a monitor associated with each of the battery packs. The monitors measure battery pack voltage, currents and temperature and compile information about the battery pack from the measured values. Each monitor prepares a data word representing information about its battery pack. The data. words are transmitted to the UPS in response to commands issued by the UPS processor to the monitors.

Claims15

Dependent claims

A UPS system for supplying electrical power to an electrical load, the UPS system comprising:

a plurality of battery packs electrically coupled in parallel;
a power circuit adapted to be coupled to the load and to a main power source, the power circuit being coupled to the battery packs and configured to transfer power from the battery packs to the load;
a plurality of battery information sensors each coupled to a respective battery pack of the plurality of battery packs, each battery information sensor being configured to sense battery information, wherein the battery information includes battery pack charge and discharge current, battery pack temperature and voltage;
one or more battery pack monitors configured to receive battery information, each battery pack monitor coupled to one or more of the battery information sensors and disposed in close proximity to one or more of the battery packs, the battery pack monitors each including a programmed monitor processor configured to process the battery information;
and
a UPS processor coupled to the one or more battery pack monitors and configured to receive the battery information from the one or more battery pack monitors over a communication link.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/706,921Filed 13 Feb 2007 · continuation
Priority: 3 Mar 1994
Published: US 2007/0200434 A130 Aug 2007
Granted: 12 Aug 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01R 31/3648
Constructional arrangements: comprising digital calculation means, e.g. for performing an algorithm
H02J 7/50
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: acting upon multiple batteries simultaneously or…
H02J 7/80
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: including monitoring or indicating arrangements
G01R 31/396
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…

Family

Application08/205,527Parent of this continuation · filed 3 Mar 1994
Application09/864,037Parent of this continuation · filed 23 May 2001
Application10/784,329Parent of this continuation · filed 23 Feb 2004
Application11/090,731Parent of this continuation · filed 25 Mar 2005
US 2007/0200434 A1Pre-grant publication · published 30 Aug 2007
US 7,199,489 B2Parent of this continuation
US 6,803,678 B2Parent of this continuation
US 6,274,950 B1Parent of this continuation
US 2001/0045780 A1Published application
US 2004/0189097 A1Published application
US 2005/0184593 A1Published application
US 7,411,315 B2This patent

From the US filing history. Foreign family members aren’t listed.

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