Patent ID: 8820446

Claim:
A vehicle, comprising: a power storage device configured to be rechargeable; an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device; a charging mechanism configured to supply electric power output from a power source outside said vehicle to said power storage device; and a controller configured to control state of charge of said power storage device when said power storage device is charged, said controller including: a state estimating unit configured to calculate an index value indicating said state of charge; a detecting unit configured to detect abnormality occurred in said power storage device, and a setting unit configured to increase an upper limit value of said index value when prescribed condition related to deterioration of said power storage device is satisfied, wherein said setting unit is configured to set an amount of change of said upper limit value such that possible distance of travel of said vehicle attains to a target distance or longer, to make smaller said amount of change as the number of increase of said upper limit value increases, to increase said upper limit value repeatedly until said upper limit value reaches a standard value, to maintain said upper limit value at said standard value once said upper limit value reached the standard value, and to maintain said upper limit value at a present value when said abnormality is detected by said detecting unit.