Power supply apparatus for electrically powered vehicle and method for controlling the same
US8963482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Feb 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electrically powered vehicle has a main battery and an auxiliary battery mounted therein. In external charging, a charging device performs AC/DC power conversion converting power received from an external power supply into power charged to main battery. A sub charging relay is connected between a predetermined node on an electric conduction path of the charging device in the AC/DC power conversion and the auxiliary battery. The sub charging relay is turned off in the external charging. The charging device is configured such that when the external charging is not performed and the sub charging relay is turned on the charging device performs DC/DC power conversion to convert power of the main battery via at least a portion of the electric conduction path in the AC/DC power conversion into power to be charged to the auxiliary battery and outputs the converted power on the predetermined node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.