“Just-in-Time” Battery Charge Depletion Control for PHEVs and E-REVs for Maximum Battery Life
2009-01-1384
04/20/2009
- Event
- Content
- Conventional methods of vehicle operation for Plug-in Hybrid Vehicles first discharge the battery to a minimum State of Charge (SOC) before switching to charge sustaining operation. This is very demanding on the battery, maximizing the number of trips ending with a depleted battery and maximizing the distance driven on a depleted battery over the vehicle's life. Several methods have been proposed to reduce the number of trips ending with a deeply discharged battery and also eliminate the need for extended driving on a depleted battery. An optimum SOC can be maintained for long battery life before discharging the battery so that the vehicle reaches an electric plug-in destination just as the battery reaches the minimum operating SOC. These “Just-in-Time” methods provide maximum effective battery life while getting virtually the same electricity from the grid.
- Pages
- 11
- Citation
- DeVault, R., "“Just-in-Time” Battery Charge Depletion Control for PHEVs and E-REVs for Maximum Battery Life," SAE Technical Paper 2009-01-1384, 2009, https://doi.org/10.4271/2009-01-1384.