Secondary battery control apparatus and control method for predicting charging in regenerative braking
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMotoyoshi Okumura
Life of this patent
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Abstract
A battery ECU executes a program that includes the steps of: sensing a vehicle speed; sensing a battery temperature; calculating a battery SOC; calculating, based on the battery temperature and battery SOC, a vehicle speed threshold value for starting charge limiting control; and setting a charge limiting flag for limiting an amount of electric energy to be to be charged even before regenerative braking, if the sensed vehicle speed is higher than the calculated vehicle speed threshold value.
Claims36
A control apparatus for a secondary battery incorporated in a vehicle, comprising:
- sensing means for sensing a state quantity related to travel of said vehicle;
- predicting means for predicting, ascribable to said state quantity, a degree of deterioration of said secondary battery due to charging in regenerative braking of said vehicle;
- and
- limiting means for limiting, based on said predicted degree of deterioration, an amount of electric energy to be charged in said regenerative braking.
A control method for a secondary battery incorporated in a vehicle, comprising the steps of:
- sensing a state quantity related to travel of said vehicle;
- predicting, ascribable to said state quantity, a degree of deterioration of said secondary battery due to charging in regenerative braking of said vehicle;
- and
- limiting, based on said predicted degree of deterioration, an amount of electric energy to be charged in said regenerative braking.
A control apparatus for a secondary battery incorporated in a vehicle, comprising:
- a sensor sensing a state quantity related to travel of said vehicle;
- and
- an electronic control unit predicting, ascribable to said state quantity, a degree of deterioration of said secondary battery due to charging in regenerative braking of said vehicle, and limiting, based on said predicted degree of deterioration, an amount of electric energy to be charged in said regenerative braking.
Dependencies are inferred from the claim text.