Battery temperature control device
US9455481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
At a timing of time t1 battery temperature Tbat lowers to Tbat_start and a warm-up request occurs, SOC at this time is a level, like time t2, which allows a vehicle to travel by itself up to a battery charging facility and allows a battery charger to be connected to the battery charging facility. Since a warm-up permission judging value is set to SOCs_low that is substantially 0 at time t1, in response to judgment of “SOC≧SOCs_low (≈0)”, warm-up of the battery is carried out from time t1 as shown by a solid line, then Tbat can be increased from time t1. A battery charge time can be thus shortened. With this, in order that the battery does not freeze while the battery is unused, a control that warms up the battery by a battery-driven heater is performed while shortening the battery charge time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.