Apparatus and method for controlling charging and discharging of batteries
US9077187B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | May 29, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Nov 11, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus is electrically connected to a battery unit consisting of multiple batteries, an energy conversion system, and power-driven equipment. The apparatus sets number requirements of batteries to be connected to a discharge unit and a charge unit of the battery unit. When the power-driven equipment is started, the apparatus receives an open-circuit voltage of each battery detected by a sensor connected to the battery, and establishes connections of the batteries with the discharge unit or the charge unit according to the open-circuit voltages of the batteries and the number requirements. During the discharge unit supplying power to the power-driven equipment and the energy conversion system charging the charge unit, the apparatus monitors variations of the open-circuit voltages of the batteries, and switches the connections of batteries with the discharge unit or the charge unit according to associations between open-circuit voltages, cut-off discharge voltages, and nominal voltages of the batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.