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Battery control system and vehicle control system

  • US 9,821,667 B2
  • Filed: 07/25/2014
  • Issued: 11/21/2017
  • 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 time ratio calculation unit that determines a time ratio indicating a ratio of a length of time over which the effective current value has been in excess of a predetermined allowable value during a predetermined specified time period; and

    a charge/discharge restriction unit that restricts the charge/discharge current based upon the time ratio determined by the time ratio calculation unit.

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