Heating system for a battery module and method of heating the battery module
US8993136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Sep 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating system and a method for heating a battery module are provided. The method includes determining if a temperature signal indicates that the temperature level of the battery module is less than a threshold temperature level. If the temperature level is less than a threshold temperature level, and a first battery cell group is not electrically balanced with a second battery cell group, then the method includes selecting at least one of the first and second battery cell groups to be at least partially discharged. If the first battery cell group is selected, then the method includes partially discharging the first battery cell group through a first resistor to generate heat energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.