Battery performance control

  • US 4,564,798 A
  • Filed: 10/06/1982
  • Issued: 01/14/1986
  • Est. Priority Date: 10/06/1982
  • Status: Expired due to Fees
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First Claim
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1. A system for controlling the operation under load of a battery including a plurality of cell-units, said system comprising:

  • a plurality of sensors adapted for connection to cell-units of said battery and arranged to sense the values of selected physical operating parameters of selected ones of said cell units;

    switches for selectively connecting each of said cell-units to one of a source of power and a load, said cell-units connected to said load comprising an active partition and said cell-units not connected to said load comprising a passive partition; and

    ,a control attached to said sensors and said switches, said control being arranged to receive from said sensors data representative of sensed values of said selected physical operating parameters of selected ones of said cell-units and to switch cell-units from said active partition to said passive partition in response to said data and including means for(i) storing data representative of predetermined acceptable values of said selected physical operating parameters,(ii) comparing said data representative of predetermined acceptable values with said data representative of sensed values of said selected ones of said cell-units, and(iii) causing said switches to disconnect a cell-unit in said active partition from said load and switch said cell-unit into said passive partition when the difference between said data representative of sensed values of said cell-unit and said data representative of said predetermined acceptable values is greater than a predetermined acceptable difference,said control being arranged to receive data representative of the sensed values of at least two of the temperature, vapor pressure, capacity, pH, current and voltage of a cell-unit of said battery and to switch said cell-unit when a conjoint difference of said two differs from a predetermined standard by more than a predetermined amount.

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