Patent ID: 7982435
Filing Date: 2011-07-19
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. An apparatus for controlling charging-discharging of a battery mounted on a vehicle, the apparatus comprising: an estimation circuit configured to estimate an internal resistance of the battery; a detection circuit configured to detect a charging-discharging current of the battery; and a control circuit configured to predict a behavior of a voltage of the battery based on behaviors of the internal resistance and the charging-discharging current of the battery, the battery voltage depending on an internal condition of the battery, wherein the control circuit limits the charging-discharging current or a charging-discharging power of the battery based on the predicted behavior of the battery voltage in such a manner that the battery voltage is within a predetermined voltage range, and wherein the control circuit limits an amount of change in the charging-discharging current or the charging-discharging power of the battery per unit time according to the predicted behavior of the battery voltage and the internal resistance of the battery.