ELECTRIC CAR, AND WHOLLY ALLOWABLE DISCHARGE ELECTRIC ENERGY SETTING METHOD IN THE ELECTRIC CAR

摘要

When the storage amount (SOC2) of a slave battery (60) becomes a predetermined storage amount (Sref2) or less, the slave battery (60) is set as a used secondary battery.  When a master battery (50) and a slave battery (62) are connected with the side of motors (MG1 and MG2), the storage amount differences (SOC1-Sref1 and SOC3-Sref3) of the master batteries (50 and 62) are set as allowable discharge electric energies (E1 and E3), respectively, and an allowable discharge electric energy (E2) is set to zero.  The sum of the allowable discharge electric energies (E1, E2 and E3) is set as an EV-dominant allowable electric energy (Eev) that is the electric energy allowing the discharges of the master battery (50) and the slave batteries (60 and 62) as a whole.