Battery control system and vehicle control system
First Claim
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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Accused Products
Abstract
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; 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.
11 Citations
6 Claims
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1. A battery control system connected to a battery, which controls charge/discharge at the battery, comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle control system, comprising:
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a battery control system connected to a battery, which controls charge/discharge at the battery; and a vehicle control unit connected with the battery control system, wherein; the battery control system 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 and 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 the vehicle control unit 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 issues an instruction for the battery control system so as to restrict the charge/discharge current based upon the time ratio having been determined.
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Specification