Split charge battery start assist
US11549477B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2022 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jul 29, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2220/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical system of a vehicle includes a first battery, a second battery, a first switch electrically connected in series between the first battery and the second battery, an external connection point, and a second switch electrically connected in series between the second battery and the external connection point. The system and a method of operating the system include determining that the first battery will need assistance to start an engine of the vehicle, opening the second switch in response to a state of charge of the second battery decreasing below a charge threshold, and closing the first switch for the second battery to assist the first battery to crank the engine for starting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.