Method and means for adjusting battery monitor based on rate of current drawn from the battery

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

5451881

SERIAL NO

08224072

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a preferred embodiment, a metering system for measuring and indicating the state of charge of an electrical storage battery, including: apparatus for storing a numerical value indicative of the state of charge of the battery and for providing an output voltage signal representative thereof; apparatus for detecting the terminal voltage of the battery, coupled to the apparatus for storing, and being operable to generate a function of the battery terminal voltage which is a substantially proportional fraction of the terminal voltage and to provide an input to the apparatus for storing if the function is below a threshold variable reference voltage signal; apparatus for receiving the output voltage signal and for generating the variable reference voltage signal therefrom, the variable reference voltage signal being lowered as a function of the output voltage signal as the output voltage signal indicates progressively lower states of charge; and apparatus for measuring the level of current drawn from the battery and adjusting the apparatus for receiving and generating, in proportion to the current level, such that the variable reference voltage signal will be greater or lesser depending on the current level.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CURTIS INSTRUMENTS, INC.MT KISCO, NY12

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finger, Eugene P Brewster, NY 22 737

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Curtis Instruments, Inc. (1)
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Cristec Industries (1)
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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
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Other [Check patent profile for assignment information] (9)
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9255955 Method and apparatus for measuring a parameter of a vehicle electrical system 0 2011
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9335362 Battery tester for electric vehicle 0 2012
8704483 System for automatically gathering battery information 3 2012
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9312575 Battery testing system and method 0 2014
 
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* Cited By Examiner