Distance based battery charge depletion control for PHEV energy management
US8731752B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a plug-in hybrid electric vehicle (PHEV), the vehicle may be operated in a charge-depleting (CD) mode to ensure that the battery is effectively discharged or in a charge-sustaining (CS) mode in which the battery state of charge is maintained by operating the internal combustion engine predominantly for propulsion. In trips that are longer than that which fully depletes the battery storage, it is possible to control the proportion in a manner that is between CS and CD modes to provide overall higher efficiency while still effectively discharging the battery over the course of the trip. Such higher efficiency operation is possible when information about the distance until the next charging event is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.