Electric-powered vehicle, method for estimating state of charge, and computer-readable storage medium having program stored therein for causing computer to execute method for estimating state of charge
US8648571B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
When charging each electric power storage device from a power supply external to a vehicle is requested, then before each electric power storage device is charged the electric power storage devices charge/discharge therebetween. A battery ECU calculates a voltage-current characteristic of each electric power storage device, as based on each electric power storage device's voltage and current collected when the electric power storage devices charge/discharge therebetween. Each electric power storage device's OCV is calculated as based on the calculated voltage-current characteristic, and each electric power storage device's SOC is estimated from the calculated OCV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.