Secondary battery control device and control method
US6696815B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor-generator is connected to a secondary battery via an inverter. The inverter is controlled by a hybrid (HV) ECU. A voltage sensor detects a voltage of each block of the secondary battery. A current value of the secondary battery is detected by a current sensor and supplied to a battery ECU. The battery ECU supplies the detected voltage to the HV ECU. The HV ECU compares the detected voltage against a predetermined threshold value at a high order of priority. If the detected voltage is the predetermined threshold value or lower, the HV ECU suppresses power consumption of the motor, thereby suppressing discharge of the secondary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.