Cell connection control device
AssigneeNissan Motor Co., Ltd.
InventorsChiduru Matsuyama, Yukari Tsukamoto, Takeshi Fujita
Life of this patent
Estimating the term…
Abstract
When connecting a plurality of cells in parallel, an operation to calculate an inrush current flowing when a pair of cells are selected from the cells for the parallel-connection and parallel-connected for all cell combinations. A cell combination, whose inrush current is the largest in the cell combinations which are judged that the calculated inrush current is less than or equal to a predetermined upper limit current value, is set as a cell combination to parallel-connect the cells.
Claims9
-5. (canceled)
A cell connection control device that sets a combination of cells when parallel-connecting a plurality of cells, comprising:
- a determining unit that determines a plurality of cells for parallel-connection of the cells;
- an inrush current calculating unit that performs an operation to select a pair of cells from the cells determined by the determining unit and to calculate an inrush current flowing between the selected pair of cells when parallel-connected, for all combinations of the determined cells;
- a judging unit that judges whether the inrush current calculated by the inrush current calculating unit is less than or equal to a predetermined upper limit current value or not, for all cell combinations which have undergone the calculation of the inrush current;
- and
- a connection cell setting unit that sets, as a cell combination to parallel-connect the cells, a cell combination whose inrush current is the largest in the cell combinations which are judged that the inrush current is less than or equal to the upper limit current value by the judging unit.
A cell connection system comprising:
- a cell connection control device that sets a combination of cells when parallel-connecting a plurality of cells, the cell connection control device having:
- a determining unit that determines a plurality of cells for parallel-connection of the cells;
- an inrush current calculating unit that performs an operation to select a pair of cells from the cells determined by the determining unit and to calculate an inrush current flowing between the selected pair of cells when parallel-connected, for all combinations of the determined cells;
- a judging unit that judges whether the inrush current calculated by the inrush current calculating unit is less than or equal to a predetermined upper limit current value or not, for all cell combinations which have undergone the calculation of the inrush current;
- and
- a connection cell setting unit that sets, as a cell combination to parallel-connect the cells, a cell combination whose inrush current is the largest in the cell combinations which are judged that the inrush current is less than or equal to the upper limit current value by the judging unit;
- and
- a cell connection device that parallel-connects the cells on the basis of the cell combination set by the cell connection control device.
Dependencies are inferred from the claim text.