Patent ID: 7439710
Filing Date: 2008-10-21
Classification: G01R,H02J,Y02T

Abstract:
1. A battery pack charge/discharge control apparatus for controlling a charge/discharge of a battery pack that is formed by combining a plurality of unit batteries of a secondary battery type, comprising: a battery ECU, the battery ECU, comprising: wherein the correlation is expressed by Mathematical Expression (1): where SOC is the apparent state-of-charge value, and SOCmid is a control center value of the state-of-charge value, and SOClow is a lower limit set value of the state-of-charge value, and SOChigh is an upper limit set value of the state-of-charge value, and Qlow is a capacity value converted from SOClow, and Qhigh is a capacity value converted from SOChigh, and Qd is the capacity difference, and Qmin is the minimum remaining capacity, and Qmax is the maximum remaining capacity.