SOC and SOH co-estimation systems and methods for electric vehicles
US11899069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2021 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Jul 24, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is provided for performing a power estimation process for an electric vehicle using a controller. The controller estimates an inner state of an energy storage supply of the electric vehicle. The inner state represents a state-of-charge (SOC) and/or a state-of-health (SOH) of the energy storage supply. The controller also estimates an SOC value and/or an SOH value of the energy storage supply based on at least one of: a present current level, a present voltage level, a present temperature, and time-based information. The controller further estimates a bounded SOC value based on the SOC value, a first upper bound, a the first lower bound, and/or estimates a bounded SOH value based on the SOH value, a second upper bound, and a second lower bound. The controller then controls an electrification process of the electric vehicle based on the bounded SOC and/or SOH values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.