System and a method for selecting energy storage cells for balancing of an electrical energy storage pack
US11124087B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2016 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Apr 17, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for selecting candidate energy storage cells for balancing of an electrical energy storage pack (1) comprising a plurality of energy storage cells (3). The method comprises calculating (S212) a probability that a balancing action on the selected group of cells results in that at least one of the future state of charge is lower than a lower threshold present state of charge or higher than a higher threshold present state of charge, the probability being indicative of superfluous leakage or overcharging. The probability is based on the future state of charge for each of the cells and on the statistical inaccuracy. If the probability is indicative of that superfluous leakage or overcharging is unlikely to occur, selecting (S214, S214′) the group of cells as candidates for a balancing action. The invention further relates to a corresponding system and to a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.