Patent ID: 6501250
Filing Date: 2002-12-31
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
An input/output control device of a secondary battery, comprising:a battery pack in which a plurality of cells that are secondary batteries are combined with each other; a voltage detector for detecting an output voltage of the battery pack; a current detector for detecting a charge/discharge current of the battery pack; a temperature detector for detecting the temperature within the battery pack; a state-of-discharge operator for calculating a state of charge of the battery pack based on a voltage signal from the voltage detector, a current signal from the current detector, and a temperature signal from the temperature detector; a temperature rise controller for determining a central value of the state-of-charge control in the range of the state-of-charge control of the battery pack in order to control the temperature rise of the battery pack based on the temperature signal, and then outputting the central value of the state-of-charge control; and a battery input/output controller for controlling the state of charge of the battery pack based on the central value of the state-of-charge control from the temperature rise controller and the state of charge at the point of time from the state-of-charge operator, and for controlling the charge and discharge of the battery pack based on charge and discharge requests from the outside to the battery pack.