STATE OF CHARGE LOWER LIMIT CONTROL METHOD AND APPARATUS FOR POWER BATTERY, AND VEHICLE

摘要

Provided are a state of charge lower limit control method and apparatus for a power battery, and a vehicle. The state of charge lower limit control method and apparatus for a power battery comprises: a detecting unit (1) measures a lowest environment temperature and a lowest power battery temperature in at least a period of time; a predicting unit (2) predicts, according to the lowest environment temperature and the lowest power battery temperature in at least the period of time, a lowest power battery temperature in a preset period of time after at least the period of time; a processing unit (3) determines, according to the lowest power battery temperature in the preset period of time, a minimum state of charge value satisfying an engine starting power requirement of a vehicle under the lowest power battery temperature in the preset period of time, and according to the minimum state of charge value, adjusts a lower limit value of the state of charge, thereby ensuring that an SOC value of the battery under a low-temperature environment allows normal starting of the vehicle.