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BATTERY CONTROL SYSTEM AND VEHICLE CONTROL SYSTEM

  • US 20160185248A1
  • Filed: 07/25/2014
  • Published: 06/30/2016
  • Est. Priority Date: 08/09/2013
  • Status: Active Grant
First Claim
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1. A battery control system connected to a battery, which controls charge/discharge at the battery, comprising:

  • a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery;

    a voltage detection unit that detects a voltage at the battery;

    a temperature detection unit that detects a temperature at the battery;

    an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window;

    a cumulative time length calculation unit that calculates a cumulative time length expressed as a cumulative value for a length of time over which the effective current value has been in excess of a predetermined allowable value; and

    a charge/discharge restriction unit that imposes a first charge/discharge restriction so as to restrict an allowable value of the charge/discharge current to a predetermined first current value based upon the effective current value calculated by the effective current value calculation unit and imposes a second charge/discharge restriction to further restrict the allowable value of the charge/discharge current to a predetermined second current value, which is smaller than the first current value and larger than zero based upon the cumulative time length calculated by the cumulative time length calculation unit.

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