Method for heating a battery in a hybrid electric vehicle
US7234552B2 · kind B2 · utility
13Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Sep 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/907
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for heating a battery in a hybrid electric vehicle. The hybrid electric vehicle has an engine, a battery, a motor generator powered by the engine or the battery, and a control module. The method includes the steps of determining a battery temperature and determining whether a tip-in event, a tip-out event, or a terminal voltage event has occurred. The polarity of the battery is reversed if the battery temperature is below a predetermined value and if a tip-in event, a tip-out event, or a terminal voltage event has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.