Apparatus and method of estimating possible input and output powers of a secondary cell

摘要

In input and output enabling power estimating apparatus and method for a secondary cell, an input enabling power (Pin) of the secondary cell is estimated on the basis of parameter estimated values (&thetas;) and an open-circuit voltage (Vo), and an output enabling power (Pout) of the secondary cell is estimated on the basis of the parameter estimated values and the open-circuit voltage (Vo), the parameters are integrally estimated from at least one of equations (1) and (2): V = B(s) DIVIDED A(s) • I + 1 DIVIDED C(s) • Vo wherein $s\; denotes\; a\; Laplace\; transform\; operator,\; A(s),\; B(s),\; and\; C(s)\; denote\; each\; poly-nominal\; of\; s\; (n\; denotes\; degrees),\; a1\; NOTEQUAL\; 0,\; b1\; NOTEQUAL\; 0,\; and\; c1\; NOTEQUAL\; 0\; andV\; =\; B(s)\; DIVIDED\; A(s)\; •\; I\; +\; 1\; DIVIDED\; A(s)•\; Vowherein$ and$ \mathop{\mathrm{image}}$$$