| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery system capable of appropriately performing regenerative charging of a secondary battery if a vehicle runs downhill after running uphill.SOLUTION: A controller 30 of a battery system 6 includes first regenerative charging control means (steps UE and UI) exerting a control to finish regenerative charging of a secondary battery 100 if an SOC increment &Dgr;Su calculated by SOC increment calculation means (step UD) reaches an SOC decrement &Dgr;Sd stored in SOC decrement storage means (step UB) while downhill running determination means (steps UC and UH) determines that a vehicle (hybrid electric vehicle 1) runs downhill. |
