BATTERY CONTROL SYSTEM AND VEHICLE CONTROL SYSTEM

摘要

A battery control system connected to a battery, which controls charge/discharge at the battery, includes: 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; and a charge/discharge restriction unit that imposes a first charge/discharge restriction so as to restrict the charge/discharge current based upon the effective current value calculated by the effective current value calculation unit.

主权项

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.